chore(i18n): drop catalog entries no longer used in the source

Merge remote-tracking branch 'origin/main' into feat/java-idea-code-style
# Conflicts: # src/platform/locales/text/zh.json
2026-11-08 08:08:16 -10:00 · 2026-11-01 18:25:59 +08:00 · 2026-11-01 18:23:46 +08:00 · 2026-11-01 18:11:50 +08:00 · 2026-11-01 17:53:04 +08:00
1114 changed files with 5846 additions and 88857 deletions
@@ -1,91 +0,0 @@
---
-name: issue-fix
-description: Triage and fix a GitHub issue (or a user-reported bug) end to end — reproduce, find the root cause, generalise it to every sibling case, fix the class rather than the instance, verify, and open one PR. Use when given an issue URL/number or asked to fix a reported bug and open a PR ("看看这个 issue", "修一下这个 bug", "提 pr").
---
-
-# Fix an issue: from one case to the whole class
-
-The reported case is one sample of a defect class. A fix that only makes the
-screenshot go away is not done: the next question is always "does this break for other
-languages / platforms / entry points too?". Answer that before anyone asks.
-
-## 1. Read and reproduce
-
- `gh issue view <n> --comments` (repo `l0ng-ai/openidea`). Read attached logs/screenshots
-  closely: OS, language, toolchain versions, exact error text.
- Locate the code path and confirm the claim in code, with `file:line` evidence.
-  Say plainly whether it is a real bug, a missing feature, or user environment.
- Reproduce locally when possible (`fixtures/` projects, `/verify` for runtime). If the
-  reporter's platform (often Windows/Linux) can't be reproduced here, say so up front.
- Do not ask for a generic environment/log checklist before trying the flow and inspecting the code.
-  Record the attempt and result; ask only for a fact that actually blocks the next diagnostic step.
-  Missing fields, limited time, or unavailable automation are not by themselves reasons to ask the reporter.
- Treat a maintainer-confirmed bug as an investigation task even if local reproduction fails. Distinguish
-  “not reproduced here” from “not a bug”, and do not require the reporter to prove its existence again.
-
-## 2. Name the root cause as a class
-
-Write one sentence of the form "<mechanism> is missing/wrong, so any <X> hits it",
-not "<this button> is broken". Typical classes in this codebase:
-
- Per-language config handled for one language only (`languages/*.toml`, `ide-sdk`).
- Platform gaps: paths, executables, shells, `.cmd`/`.exe`, separators — macOS-only code.
- Toolchain/version discovery: one probe location, no version check, no rescan.
- Two features each implementing half a flow and never joined (feature isolation →
-  should go through an action/service).
- State not reset on project switch / window reuse; events not scoped per window.
- Failure surfaced as raw stderr/stack trace or retried until "crashed" instead of a
-  clear status with an action.
- UI: same primitive styled differently in N places.
-
-## 3. Sweep for siblings
-
-Search systematically, not by memory:
-
- Same pattern elsewhere: `git grep` the function, the config key, the error string,
-  the hard-coded path/flag. Check every `languages/*.toml` entry and every platform branch.
- Same flow for other languages/runtimes (Java ↔ Kotlin/Gradle, Python ↔ venv/uv,
-  Node ↔ Deno/Bun, Go, Rust …): would they fail the same way?
- Other callers/entry points of the same flow (menu, context menu, gutter, shortcut, CLI arg).
- Neighbouring failure modes of the same mechanism (not installed / wrong version /
-  installed but crashes / slow start / installed mid-session).
-  For broad sweeps spawn one Explore agent with the class description, not the instance.
-
-## 4. Decide the fix at the right altitude
-
- Fix the mechanism once (shared helper, action, config hook) so siblings are fixed
-  by construction; don't patch each call site.
- Respect `AGENTS.md` rules (crate boundaries, no cross-feature imports, `IdeResult`,
-  UTF-16). If the right fix breaks a rule, pick the rule-respecting design and say why.
- Compare with how established IDEs solve it when relevant; prefer the established answer.
- Present: root cause, sibling table, proposed fix, what's deferred. When the user leaves
-  the choice to you, go ahead without asking again.
-
-## 5. Implement and test the class
-
- Tests cover the class: table-driven over languages/platforms/states, not just the
-  reported input. Include the reporter's case verbatim.
- Run the scoped checks (`pnpm vitest run <path>`, `cargo nextest run -p <crate>`), then
-  `/verify` in the app for UI or runtime behaviour.
-
-## 6. PR
-
- One branch `fix/<slug>`, one PR unless the user asks otherwise; `Fixes #<n>` in the body.
- Don't stage untracked IDE-state dirs (`.ideal/`, `.openidea/`) or screenshots.
- PR body follows `.github/pull_request_template.md`: `Closes #<n>`, then
-  **What and why** (user-visible change + root cause at class level, 2–4 sentences),
-  **How it was verified** (commands run and results, siblings fixed/deferred, what could break and how
-  it was checked, what was not verified, e.g. "Windows not tested"; for UI changes the before/after
-  screenshot paths from `/verify`), **Review focus** (optional). Short and plain.
-
-## Report format
-
-Reply in the user's language:
-
-```
-Root cause: <one sentence, class level>
-Sibling sweep:
-| Location / case | Affected? | Action |
-Fixed / not covered (why) / not verified (platform)
-PR: <url>
-```
@@ -1,57 +0,0 @@
---
-name: verify
-description: Build, launch and drive the OpenIDEA desktop app through the Tauri MCP bridge to verify a change at runtime.
---
-
-# Verify OpenIDEA in the running app
-
-## Launch
-
- Run the app from the worktree that holds the change: `pnpm tauri dev` in the background, logging
-  into your task's scratch subdirectory. Use `pnpm dev:app` instead when your checks call
-  `window.__TAURI__` from `execute_js`. The wrapper gives each worktree its own app identity, data,
-  settings and Vite port, so other worktrees and the installed app don't interfere. If it reports a
-  session already running for this worktree, reuse that one.
- Once the app is up, `pnpm dev:status` lists this worktree's MCP bridges. Pass the reported
-  `appIdentifier` (the port) on every `mcp__tauri__*` call. The MCP server is shared between
-  sessions: never `driver_session stop` without an `appIdentifier`, and re-check `document.title` /
-  `location.href` before acting if anything looks off.
- Make sure the binary contains the change: a session already running for this worktree may be an
-  older build. Restart it after Rust changes; frontend changes reload through Vite.
- After the app restarts, `driver_session start` again for your port (a stale session says "Already connected").
- If the `pnpm tauri dev` process exits while the app window stays open, Vite is gone and any webview
-  reload shows an empty `#root`. Stop that app and start the session again.
- Stop everything you started when done and nothing else; never use process-name kills.
-
-## Driving
-
- `manage_window focus` before screenshots / timing-sensitive steps: a background window throttles timers
-  (debounced LSP / VCS refreshes stall, `setTimeout` promises in `execute_js` time out) and native
-  screenshots come back black.
- Settings is a separate native window `settings-main`; pass `windowId`, focus it before screenshotting.
- CodeMirror / xterm ignore MCP `type`. Focus the element, then `document.execCommand('insertText', false, text)`.
-  For xterm Enter, dispatch a `keydown` (`key: 'Enter', keyCode: 13`) on `.xterm-helper-textarea`.
- MCP clicks arrive with `event.detail === 0`; CodeMirror treats them as line-select clicks. Set the caret
-  through the view instead: `document.querySelector('.cm-content').cmTile.view`.
- MCP `text` strategy can resolve to a hidden node; prefer coordinates (CSS px = image px × 0.9) or CSS selectors.
- CSS-module edits often trigger a full page reload in dev: dialogs close, Run sessions and terminal
-  scrollback reset, and each reload spawns a fresh shell. Re-open what you were testing.
-
-## Evidence
-
- For UI or interaction changes, capture `before.png` (on `main` or with the fix reverted) and
-  `after.png` at the same state and window size, into your task's scratch subdirectory. Multi-step
-  flows: a numbered series (`after-1.png`, `after-2.png`, ...).
- Report the absolute paths; they go into the PR's **How it was verified** section and the triage
-  acceptance entry. Never commit screenshots to the feature branch.
-
-## Fixture
-
-`fixtures/` has sample projects (go-app, rust-app, ts-app, kotlin-gradle, polyglot). Copy one into
-your scratch directory before editing it, and don't commit the IDE state it creates (`.openidea/`).
-
-## Flows worth driving
-
-⌘⇧O Goto File · ⌘⇧F Find in Files (preview scroll + highlight) · ⌘⇧A Find Action · editor edit/undo/autosave ·
-Terminal (Unicode, venv) · Commit view at the default narrow width · Problems · Run → Stop · Project view
-New / Delete (nested `a/b.txt` names) · ⌘, Settings search (+ Keymap filter) · Git Log on a repo without commits.
@@ -1 +0,0 @@
-../../.agents/skills/issue-fix
@@ -1 +0,0 @@
-../../.agents/skills/verify
@@ -1,75 +0,0 @@
-name: Bug report
-description: Something in OpenIDEA doesn't work as expected
-labels: [bug]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Thanks for reporting! Keep logs and error messages exactly as they appear.
-
-        One problem per issue, please. If you have several, open one issue for each.
-  - type: checkboxes
-    id: checks
-    attributes:
-      label: Before you start
-      options:
-        - label: I searched [existing issues](https://github.com/l0ng-ai/openidea/issues?q=is%3Aissue) and this hasn't been reported yet.
-          required: true
-        - label: I'm on the [latest release](https://github.com/l0ng-ai/openidea/releases/latest), or I noted below that I can't update.
-          required: true
-  - type: textarea
-    id: environment
-    attributes:
-      label: Environment
-      description: |
-        Open **About OpenIDEA** (macOS: OpenIDEA menu; Windows/Linux: Help menu), click **Copy Info**, and paste it here. Also mention the project type if it matters (e.g. Gradle multi-module, Spring Boot, Go workspace) and whether you use remote development.
-      render: text
-      placeholder: |
-        About OpenIDEA
-        Version: 0.1.33
-        Build: ...
-        Platform: macOS aarch64
-    validations:
-      required: true
-  - type: textarea
-    id: steps
-    attributes:
-      label: Steps to reproduce
-      description: Start from opening OpenIDEA or a project. A small sample project or snippet helps a lot.
-      placeholder: |
-        1. Open a Gradle project whose settings.gradle includes modules in a loop
-        2. Open the Gradle tool window
-        3. ...
-    validations:
-      required: true
-  - type: textarea
-    id: reproduction
-    attributes:
-      label: Minimal reproduction
-      description: A link to a small public repository, or the smallest files/snippet that trigger the problem. Optional, but it's the fastest way to get a fix.
-      placeholder: https://github.com/you/repro-project
-  - type: textarea
-    id: expected
-    attributes:
-      label: Expected behavior
-    validations:
-      required: true
-  - type: textarea
-    id: actual
-    attributes:
-      label: Actual behavior
-      description: What happened instead. Screenshots or a recording are welcome.
-    validations:
-      required: true
-  - type: textarea
-    id: logs
-    attributes:
-      label: Logs
-      description: |
-        Use **Help → Show Log in Finder / Explorer / Files** to find `openidea.log` and paste the lines around the problem, or attach the file. Include console output or error messages too. Check for tokens or passwords before posting.
-      render: text
-  - type: textarea
-    id: extra
-    attributes:
-      label: Additional context
-      description: Anything else, such as whether it worked in an earlier version.
@@ -1,5 +0,0 @@
-blank_issues_enabled: false
-contact_links:
-  - name: Download the latest release
-    url: https://github.com/l0ng-ai/openidea/releases/latest
-    about: Many problems are already fixed. Please check the latest version before reporting.
@@ -1,48 +0,0 @@
-name: Feature request
-description: Suggest a new feature or an improvement
-labels: [enhancement]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        One request per issue, please.
-  - type: checkboxes
-    id: checks
-    attributes:
-      label: Before you start
-      options:
-        - label: I searched [existing issues](https://github.com/l0ng-ai/openidea/issues?q=is%3Aissue) and this hasn't been requested yet.
-          required: true
-  - type: textarea
-    id: problem
-    attributes:
-      label: Problem
-      description: What are you trying to do, and what gets in the way today?
-    validations:
-      required: true
-  - type: textarea
-    id: proposal
-    attributes:
-      label: Proposed solution
-      description: How you'd like it to work. Mockups or examples from other tools are welcome.
-    validations:
-      required: true
-  - type: textarea
-    id: acceptance
-    attributes:
-      label: Acceptance criteria
-      description: How we'll know it's done. One observable behavior per line.
-      placeholder: |
-        - [ ] Right-clicking a test class shows "Run with Coverage"
-        - [ ] Coverage results open in the Coverage tool window
-    validations:
-      required: true
-  - type: textarea
-    id: alternatives
-    attributes:
-      label: Alternatives and workarounds
-      description: Other approaches you considered, or what you do now instead.
-  - type: textarea
-    id: extra
-    attributes:
-      label: Additional context
@@ -1,17 +0,0 @@
-Closes #
-
-## What and why
-
-<!-- 2–4 sentences: the change a user notices, and the root cause.
-     If it doesn't fit, the PR is probably too big; split it. -->
-
-## How it was verified
-
-<!-- Required. Commands you actually ran and their results; what else this could
-     affect and how you checked it still works.
-     UI changes: before/after screenshots. Multi-step interactions: a recording.
-     Backend changes: logs or command output. -->
-
-## Review focus
-
-<!-- Optional: anything you want reviewers to look at closely. -->
@@ -71,57 +71,6 @@ jobs:
      - run: cargo build --locked -p ide-host --bin openidea-server --target x86_64-unknown-linux-musl
      - run: target/x86_64-unknown-linux-musl/debug/openidea-server --version

-  # The plugin SDK, the official plugins and the test fixtures build in their
-  # own workspaces (the root excludes them), so the jobs above don't see them.
-  plugins:
-    name: Plugins (SDK, official, fixtures)
-    runs-on: ubuntu-22.04
-    env:
-      CARGO_TARGET_DIR: ${{ github.workspace }}/target-plugins
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
-        with: { targets: wasm32-wasip2, components: "clippy, rustfmt" }
-      - uses: Swatinem/rust-cache@v2
-        with:
-          key: plugins
-          cache-directories: target-plugins
-          save-if: ${{ github.ref == 'refs/heads/main' }}
-      - name: Format, lint (host and wasm) and test each crate
-        shell: bash
-        run: |
-          set -euo pipefail
-          for dir in sdk/rust/openidea-plugin plugins/official/*/ crates/ide-plugin/tests/fixtures/*/; do
-            [ -f "$dir/Cargo.toml" ] || continue
-            echo "::group::$dir"
-            cargo fmt --check --manifest-path "$dir/Cargo.toml"
-            cargo clippy --locked --all-targets --manifest-path "$dir/Cargo.toml" -- -D warnings
-            cargo clippy --locked --target wasm32-wasip2 --manifest-path "$dir/Cargo.toml" -- -D warnings
-            cargo test --locked --manifest-path "$dir/Cargo.toml"
-            echo "::endgroup::"
-          done
-      - uses: pnpm/action-setup@v4
-        with: { version: 11 }
-      - uses: actions/setup-node@v4
-        with: { node-version: 22 }
-      # Plugin web pages (`web-src/`, their own pnpm projects): typecheck and test.
-      - name: Web pages typecheck and test
-        shell: bash
-        run: |
-          set -euo pipefail
-          for dir in plugins/official/*/web-src/; do
-            [ -f "$dir/package.json" ] || continue
-            echo "::group::$dir"
-            pnpm --dir "$dir" install --frozen-lockfile --ignore-workspace
-            pnpm --dir "$dir" exec tsc --noEmit
-            pnpm --dir "$dir" test
-            echo "::endgroup::"
-          done
-      # The host's tests run the checked-in components: they must be built from these sources.
-      # Web pages aren't checked in: this builds them and checks the result.
-      - name: Checked-in components are up to date, web pages build
-        run: plugins/build.sh --check
-
  deny:
    name: Cargo deny
    runs-on: ubuntu-latest
@@ -1,69 +0,0 @@
-name: PR check
-on:
-  # pull_request_target so the check can label PRs from forks. It never checks out
-  # or runs PR code: it only reads the PR title and description.
-  pull_request_target:
-    types: [opened, edited, reopened, ready_for_review]
-
-permissions:
-  issues: write
-  pull-requests: write
-
-concurrency:
-  group: pr-check-${{ github.event.pull_request.number }}
-  cancel-in-progress: true
-
-jobs:
-  check:
-    if: github.event.pull_request.user.type != 'Bot' && !github.event.pull_request.draft
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/github-script@v7
-        with:
-          script: |
-            const pr = context.payload.pull_request;
-            const LABEL = 'needs-info';
-            const MARKER = '<!-- pr-check -->';
-            // Docs, CI and pure refactors may skip the linked issue.
-            const NO_ISSUE_TYPES = /^(docs|ci|build|chore|refactor|style|test)(\(.+\))?!?:/;
-
-            const body = (pr.body || '').replace(/<!--[\s\S]*?-->/g, '');
-            const problems = [];
-
-            const linksIssue =
-              /\b(close[sd]?|fix(e[sd])?|resolve[sd]?)\s*:?\s+(#\d+|https:\/\/github\.com\/[\w.-]+\/[\w.-]+\/issues\/\d+)/i.test(body);
-            if (!linksIssue && !NO_ISSUE_TYPES.test(pr.title)) {
-              problems.push('Link the issue this PR resolves, e.g. `Closes #123`.');
-            }
-
-            const verified = body.match(/^##+\s*How it was verified\s*$([\s\S]*?)(?=^##+\s|(?![\s\S]))/im);
-            if (!verified || !verified[1].trim()) {
-              problems.push('Fill in **How it was verified**: the commands you ran and their results. UI changes need before/after screenshots.');
-            }
-
-            const { owner, repo } = context.repo;
-            const issue_number = pr.number;
-            const comments = await github.paginate(github.rest.issues.listComments, { owner, repo, issue_number });
-            const existing = comments.find(c => c.user.type === 'Bot' && c.body.includes(MARKER));
-            const labeled = pr.labels.some(l => l.name === LABEL);
-
-            if (problems.length) {
-              const text = `${MARKER}\nThanks for the PR. Before review, please update the description (see [CONTRIBUTING.md](https://github.com/${owner}/${repo}/blob/main/CONTRIBUTING.md)):\n\n${problems.map(p => `- ${p}`).join('\n')}\n\nThis check reruns when you edit the description.`;
-              if (existing) {
-                await github.rest.issues.updateComment({ owner, repo, comment_id: existing.id, body: text });
-              } else {
-                await github.rest.issues.createComment({ owner, repo, issue_number, body: text });
-              }
-              if (!labeled) {
-                await github.rest.issues.addLabels({ owner, repo, issue_number, labels: [LABEL] });
-              }
-              return;
-            }
-
-            // Only undo what this check did: the label is cleared only when our comment exists.
-            if (existing) {
-              await github.rest.issues.deleteComment({ owner, repo, comment_id: existing.id });
-              if (labeled) {
-                await github.rest.issues.removeLabel({ owner, repo, issue_number, name: LABEL }).catch(() => {});
-              }
-            }
@@ -180,69 +180,6 @@ jobs:
          if command -v sha256sum >/dev/null; then sha256sum "$ASSET"; else shasum -a 256 "$ASSET"; fi > "$ASSET.sha256"
          gh release upload "$TAG" "$ASSET" "$ASSET.sha256" --clobber

-  # The official plugins, signed, and the marketplace index released apps read
-  # (releases/latest/download/plugins-index.json). They are not in the
-  # installers: users install them from Settings › Plugins. Without the
-  # signing key (secret PLUGIN_SIGNING_KEY: the file `openidea-plugin keygen`
-  # writes) nothing is published and the release goes on.
-  plugins:
-    needs: create-release
-    name: Official plugins
-    runs-on: ubuntu-22.04
-    env:
-      SIGNING_KEY: ${{ secrets.PLUGIN_SIGNING_KEY }}
-    steps:
-      - id: key
-        run: |
-          if [ -z "$SIGNING_KEY" ]; then
-            echo "::warning::PLUGIN_SIGNING_KEY is not set: the official plugins are not published"
-            echo "skip=true" >> "$GITHUB_OUTPUT"
-          fi
-      - uses: actions/checkout@v4
-        if: steps.key.outputs.skip != 'true'
-        with: { ref: "${{ env.TAG }}" }
-      - uses: dtolnay/rust-toolchain@stable
-        if: steps.key.outputs.skip != 'true'
-        with: { targets: wasm32-wasip2 }
-      - uses: Swatinem/rust-cache@v2
-        if: steps.key.outputs.skip != 'true'
-        with: { key: release-plugins }
-      - uses: pnpm/action-setup@v4
-        if: steps.key.outputs.skip != 'true'
-        with: { version: 11 }
-      - uses: actions/setup-node@v4
-        if: steps.key.outputs.skip != 'true'
-        with: { node-version: 22 }
-      # Builds the web pages; fails when a checked-in component isn't built from these sources.
-      - name: Build
-        if: steps.key.outputs.skip != 'true'
-        run: |
-          plugins/build.sh --check
-          cargo build --release --locked -p ide-host --bin openidea-plugin
-      - name: Pack, index and upload
-        if: steps.key.outputs.skip != 'true'
-        shell: bash
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          set -euo pipefail
-          tool="$PWD/target/release/openidea-plugin"
-          key="$RUNNER_TEMP/openidea.key"
-          out="$RUNNER_TEMP/market"
-          (umask 077 && printf '%s' "$SIGNING_KEY" > "$key")
-          trap 'rm -f "$key"' EXIT
-          mkdir -p "$out"
-          for dir in plugins/official/*/; do
-            id="$(sed -n 's/^id *= *"\(.*\)".*/\1/p' "$dir/plugin.toml" | head -1)"
-            version="$(sed -n 's/^version *= *"\(.*\)".*/\1/p' "$dir/plugin.toml" | head -1)"
-            "$tool" pack "$dir" --key "$key" --publisher openidea --out "$out/$id-$version.oiplugin"
-          done
-          # The published index's revocations and earlier keys carry over.
-          curl -fsSL "https://github.com/$GITHUB_REPOSITORY/releases/latest/download/plugins-index.json" \
-            -o "$out/plugins-index.json" || rm -f "$out/plugins-index.json"
-          "$tool" index "$out" --publisher openidea --name OpenIDEA --key "$key" --out "$out/plugins-index.json"
-          gh release upload "$TAG" "$out"/*.oiplugin "$out/plugins-index.json" --clobber
-
  # The updater manifest (latest.json), built once from the signed bundles every build uploaded.
  # Fails when a platform is missing, so a release never ships a manifest without it.
  updater-manifest:
@@ -306,7 +243,7 @@ jobs:
            core.info(`latest.json: ${Object.keys(platforms).sort().join(", ")}`);

  publish:
-    needs: [create-release, build, server, plugins, updater-manifest]
+    needs: [create-release, build, server, updater-manifest]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v7
@@ -10,9 +10,6 @@ lerna-debug.log*
 node_modules
 dist
 dist-ssr
-# Plugin components are checked in (plugins/build.sh --check keeps them current).
-!plugins/official/*/dist
-!crates/ide-plugin/tests/fixtures/*/dist
 *.local

 # Editor directories and files
@@ -33,13 +30,9 @@ target/
 test-results/
 playwright-report/

-# Local AI agent files. Shared skills live in .agents/skills; .claude/skills links to them.
-CLAUDE.local.md
-.claude/*
-!.claude/skills/
-.claude/skills/*
-!.claude/skills/verify
-!.claude/skills/issue-fix
+# Local AI agent files
+CLAUDE.md
+.claude/

 # Local reference screenshots
 pycharm-screenshots/
@@ -10,13 +10,10 @@
    "target",
    "src/bindings.ts",
    "src/editor/core/cm/angular/parser*.ts",
-    "src/editor/core/cm/jsp/parser*.ts",
    "docs/plugins/themes.md",
    "pnpm-lock.yaml",
    "**/*.toml",
    "fixtures",
-    "plugins/*/web",
-    "plugins/official/*/web",
    "crates/**/tests/fixtures"
  ],
  "overrides": [
@@ -1,118 +0,0 @@
-# OpenIDEA — contributor guide
-
-Rust + Tauri 2 desktop IDE with full-featured, multi-language code intelligence.
-Visual style: dark, low-contrast greys, one cool accent
-(`src/styles/tokens.css` is the source of truth for colours and metrics).
-
-## Layout
-
- `crates/ide-*` — backend crates; one domain each. Depend on `ide-core` for shared
-  types; never reach into another crate's internals.
- `src-tauri/` — glue only: `state.rs` (AppState / Project), `commands/<domain>.rs`
-  (thin typed IPC adapters), `events.rs`. No domain logic here.
- `src/bindings.ts` — generated by tauri-specta (`pnpm gen:bindings`). Never edit.
- `src/platform/` — ipc (`call`, `onIdeEvent`, `nextRequestId`), actions registry,
-  keymap + dispatcher, context keys / `when` clauses, project store.
- `src/workbench/contributions.ts` — extension points (tool windows, status items,
-  overlays, editor kinds) and cross-feature services (editor, tool windows, notifications).
- `src/ui/` — design-system primitives. `src/features/<name>/` — one feature each,
-  exporting `activate()` registered in `src/features/index.ts`.
- `languages/<id>.toml` — language definitions (detection, comments, LSP, DAP).
- `crates/ide-host` — the `openidea-server` binary for remote development.
- `wit/` — plugin interface definitions; `plugins/` — sample and bundled plugins;
-  `templates/` — plugin starter templates.
- `e2e/` — Playwright UI tests (`pnpm e2e`). `fixtures/` — sample projects per language
-  for manual and automated testing.
-
-## Rules
-
- IPC coordinates: 0-based lines, **UTF-16** columns/offsets everywhere (`ide-core::text`).
- Every command returns `IdeResult<T>`; convert internal errors at the crate edge.
- Streaming → `tauri::ipc::Channel<T>`; cancellable → UI-allocated `RequestId` +
-  `cancel_request`. Backend → UI notifications → `IdeEvent` via `EventSink`.
- Long work never blocks the UI thread or a Tauri command thread: use
-  `spawn_blocking`/rayon, honour `CancellationToken`.
- Frontend features never import each other; communicate via actions, contributions
-  and services. All user-invocable behaviour is an action with a stable id; default
-  shortcuts live in `src/platform/keymaps/`.
- Styling: CSS Modules + tokens only (no hex literals in components). Inline SVG
-  icons from `src/ui/icons.tsx`, never emoji. Real `<button>`/`<input>`; `aria-label` on icon buttons.
- User-visible text goes through the text catalog: add every new string to both
-  `src/platform/locales/text/en.json` and `zh.json` (`textCatalog.test.ts` enforces it).
- Keep comments sparse and purposeful; match surrounding style.
- For GUI verification, prefer Tauri MCP; use Computer Use only when Tauri MCP is
-  unavailable or cannot cover the required checks.
-
-## Issues & PRs
-
-Follow `CONTRIBUTING.md` and `.github/pull_request_template.md`: one issue per PR with
-`Closes #<n>`, reproduce first, keep the diff focused, short plain description, and a
-**How it was verified** section with commands run, results and (for UI) before/after screenshots.
-Unclear product decisions → `needs-decision` and stop.
-
-## Skills
-
-Shared agent skills live in `.agents/skills/` (`.claude/skills/` links to them):
-`verify` drives the running app through Tauri MCP and captures screenshot evidence;
-`issue-fix` takes an issue from reproduction to one PR.
-
-## Commands
-
- `pnpm tauri dev` — run the app with worktree isolation (Node 22.18+).
-  `pnpm dev:app` also enables the global Tauri API. `pnpm dev:status` reports
-  this worktree's running MCP bridges and actual ports.
- `pnpm build` — typecheck + bundle frontend.
- `cargo nextest run --workspace` (or `cargo test`), `cargo clippy --workspace --all-targets -- -D warnings`, `cargo fmt --all`.
- `pnpm test`, `pnpm e2e`, `pnpm lint`, `pnpm format:check`, `pnpm knip`, `pnpm typecheck`,
-  `pnpm gen:bindings`.
- `pnpm perf` (UI interaction latency / frames / leaks), `pnpm perf:rust` (criterion
-  benches vs budgets). Budgets: `perf/budgets.json`.
-
-## Before opening a PR
-
-Run what CI runs for the parts you touched:
-
- Rust: `cargo fmt --all --check`, `cargo clippy --workspace --all-targets -- -D warnings`,
-  `cargo nextest run --workspace`. After changing IPC types, run `pnpm gen:bindings` and
-  commit `src/bindings.ts`; CI fails if it differs.
- Frontend: `pnpm typecheck`, `pnpm lint`, `pnpm format:check`, `pnpm knip`, `pnpm test`,
-  `pnpm build`, and `pnpm e2e` for UI flows.
- UI or runtime behaviour: verify in the running app (`.agents/skills/verify`).
-
-## Pitfalls
-
- Run a subset of frontend tests with `pnpm vitest run <path>`. `pnpm test -- <path>` ignores
-  the filter and runs the whole suite, which takes several minutes.
- Don't run clippy while iterating: `pnpm tauri dev` compiles anyway. Run
-  `cargo fmt --all` + `cargo clippy -p <crate> --all-targets -- -D warnings` once, right
-  before committing. A cold build cache can take around 5 minutes. Run long checks one at
-  a time, not chained in one shell call that may hit the 10-minute tool timeout.
- `pnpm tauri dev` does a full debug build. Clippy only checks the code, so a passing clippy
-  doesn't make the first launch fast.
-
-## Parallel worktrees
-
-Several worktrees can be developed and run side by side.
-
- Create one per task: `git worktree add ../<name> -b <branch> origin/main`, then
-  `pnpm install` in it.
- Launch with `pnpm tauri dev` / `pnpm dev:app`, not the raw `pnpm exec tauri dev` CLI. The
-  wrapper starts Vite on a worktree-derived port (advancing if occupied), passes its actual
-  URL to Tauri, and reports an existing launcher instead of starting another for the same
-  worktree. HMR uses the Vite port.
- Debug app identity, data, settings, logs and single-instance scope follow the canonical
-  worktree path captured at build time, independent of launch cwd. Launching the same debug
-  binary again focuses its existing instance and forwards its path argument. Different
-  worktrees and the installed release can coexist. `--release` uses normal release identity
-  and bypasses the development wrapper.
- MCP bridge ports are dynamic (9223–9322). Use `pnpm dev:status`, connect to the reported
-  port, verify identifier/cwd, and pass `appIdentifier: <port>` explicitly. Do not assume the
-  default MCP session belongs to this worktree.
- Keep each worktree's Cargo output directory separate; do not point `CARGO_TARGET_DIR` or
-  `target` symlinks at a shared directory.
- Each worktree's first build is cold (around 5 minutes) and its Cargo output takes
-  15–30 GB. Avoid running several heavy builds on one machine at the same time.
- Stop only processes started for the current worktree/session. Never use broad
-  process-name kills such as `pkill openidea`.
- When done: stop that worktree's app and dev session, delete its build output, then
-  `git worktree remove ../<name>`.
@@ -1 +0,0 @@
-AGENTS.md
@@ -1,35 +0,0 @@
-# Contributing to OpenIDEA
-
-These rules apply to everyone, and to any coding agent working on their behalf.
-Project layout, coding rules, commands and checks are in [AGENTS.md](AGENTS.md).
-
-## Issues
-
- One problem or request per issue. Use the issue forms.
- Bugs: steps that reproduce the problem from a fresh start. A minimal sample
-  project is the fastest way to get a fix.
- Features: state the problem and the acceptance criteria. A feature is ready to
-  build once a maintainer labels it `planned`.
- Labels track status: `needs-info` waits on the reporter, `needs-decision` waits
-  on a maintainer, `planned` is accepted, `needs-acceptance` has a fix waiting to be
-  checked.
-
-## Pull requests
-
- One issue per PR, linked with `Closes #123`. Feature PRs need a `planned` issue.
-  Docs, CI and pure refactors may skip the issue.
- Reproduce the problem first, or write a test that fails before the fix.
- Fix the cause, and check whether the same cause breaks anything nearby.
- Keep the diff focused. Unrelated refactors go in their own PR.
- Title: [Conventional Commits](https://www.conventionalcommits.org/), e.g.
-  `fix(editor): keep the caret visible after folding`.
- Fill in the template. Keep the description short and in plain words. If it
-  doesn't fit in a few sentences, the PR is probably too big.
- **How it was verified** is required: the commands you ran and their results,
-  and what else the change could affect. UI changes need before/after screenshots;
-  multi-step interactions need a recording.
- If a change needs a product decision you can't make, ask in the issue and stop
-  rather than guessing.
-
-A check on each PR adds `needs-info` when the issue link or the verification
-section is missing, and removes it once they're filled in.
@@ -4038,7 +4038,7 @@ checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"

 [[package]]
 name = "ide-agent"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dunce",
 "encoding_rs",
@@ -4061,7 +4061,7 @@ dependencies = [

 [[package]]
 name = "ide-analysis"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ast-grep-core",
 "ide-core",
@@ -4075,22 +4075,22 @@ dependencies = [

 [[package]]
 name = "ide-build"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dirs 6.0.0",
 "dunce",
 "ide-core",
+ "libc",
 "serde",
 "serde_json",
 "specta",
 "tempfile",
 "tracing",
- "zip",
 ]

 [[package]]
 name = "ide-clipboard"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "objc2 0.6.5",
 "objc2-app-kit 0.3.2",
@@ -4099,11 +4099,10 @@ dependencies = [

 [[package]]
 name = "ide-core"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dunce",
 "encoding_rs",
- "libc",
 "serde",
 "serde_json",
 "specta",
@@ -4116,7 +4115,7 @@ dependencies = [

 [[package]]
 name = "ide-coverage"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "ide-run",
@@ -4130,7 +4129,7 @@ dependencies = [

 [[package]]
 name = "ide-dap"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "ide-jsonrpc",
@@ -4148,7 +4147,7 @@ dependencies = [

 [[package]]
 name = "ide-db"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "bb8",
 "dirs 6.0.0",
@@ -4170,9 +4169,10 @@ dependencies = [

 [[package]]
 name = "ide-docker"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
+ "libc",
 "serde",
 "serde_json",
 "specta",
@@ -4181,29 +4181,9 @@ dependencies = [
 "which",
 ]

-[[package]]
-name = "ide-extension"
-version = "0.1.35"
-dependencies = [
- "base64 0.22.1",
- "blake3",
- "ed25519-dalek",
- "ide-core",
- "parking_lot",
- "semver",
- "serde",
- "serde_json",
- "specta",
- "specta-typescript",
- "tempfile",
- "toml 0.9.12+spec-1.1.0",
- "tracing",
- "zip",
-]
-
 [[package]]
 name = "ide-fonts"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "objc2-core-foundation",
 "objc2-core-text",
@@ -4215,10 +4195,11 @@ dependencies = [

 [[package]]
 name = "ide-github"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "ide-vcs",
+ "libc",
 "serde",
 "serde_json",
 "specta",
@@ -4228,15 +4209,11 @@ dependencies = [

 [[package]]
 name = "ide-host"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
- "base64 0.22.1",
- "criterion",
 "dirs 6.0.0",
 "dunce",
 "encoding_rs",
- "getrandom 0.3.4",
- "globset",
 "ide-agent",
 "ide-analysis",
 "ide-build",
@@ -4244,14 +4221,12 @@ dependencies = [
 "ide-coverage",
 "ide-dap",
 "ide-db",
- "ide-extension",
 "ide-http",
 "ide-index",
 "ide-jsonrpc",
 "ide-language",
 "ide-lsp",
 "ide-notebook",
- "ide-plugin",
 "ide-remote",
 "ide-run",
 "ide-sdk",
@@ -4265,27 +4240,21 @@ dependencies = [
 "ide-vcs",
 "ide-vfs",
 "ide-workspace",
- "ignore",
 "parking_lot",
- "reqwest",
- "rustix",
 "serde",
 "serde_json",
 "specta",
 "specta-typescript",
 "tempfile",
 "tokio",
- "toml 0.9.12+spec-1.1.0",
 "tracing",
 "tracing-subscriber",
 "uuid",
- "windows-sys 0.61.2",
- "zip",
 ]

 [[package]]
 name = "ide-http"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "parking_lot",
@@ -4303,7 +4272,7 @@ dependencies = [

 [[package]]
 name = "ide-index"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "blake3",
 "criterion",
@@ -4325,7 +4294,7 @@ dependencies = [

 [[package]]
 name = "ide-jsonrpc"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "encoding_rs",
 "futures",
@@ -4341,12 +4310,11 @@ dependencies = [

 [[package]]
 name = "ide-language"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "blake3",
 "criterion",
 "ide-core",
- "ide-extension",
 "ide-text",
 "parking_lot",
 "regex-lite",
@@ -4397,7 +4365,7 @@ dependencies = [

 [[package]]
 name = "ide-lsp"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dunce",
 "futures",
@@ -4418,12 +4386,11 @@ dependencies = [
 "tokio",
 "toml 0.9.12+spec-1.1.0",
 "tracing",
- "zip",
 ]

 [[package]]
 name = "ide-notebook"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "futures",
 "ide-core",
@@ -4446,19 +4413,17 @@ dependencies = [

 [[package]]
 name = "ide-plugin"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
- "blake3",
 "ide-core",
- "ide-extension",
+ "ide-language",
 "parking_lot",
- "semver",
 "serde",
 "serde_json",
 "specta",
 "tempfile",
 "thiserror 2.0.21",
- "tokio",
+ "toml 0.9.12+spec-1.1.0",
 "tracing",
 "wasmtime",
 "wasmtime-wasi",
@@ -4466,7 +4431,7 @@ dependencies = [

 [[package]]
 name = "ide-profiler"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "ide-run",
@@ -4479,7 +4444,7 @@ dependencies = [

 [[package]]
 name = "ide-remote"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "globset",
 "ide-core",
@@ -4496,7 +4461,7 @@ dependencies = [

 [[package]]
 name = "ide-run"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dunce",
 "encoding_rs",
@@ -4519,7 +4484,7 @@ dependencies = [

 [[package]]
 name = "ide-sdk"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dunce",
 "ide-core",
@@ -4538,7 +4503,7 @@ dependencies = [

 [[package]]
 name = "ide-search"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "criterion",
 "globset",
@@ -4558,7 +4523,7 @@ dependencies = [

 [[package]]
 name = "ide-spell"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "parking_lot",
@@ -4571,7 +4536,7 @@ dependencies = [

 [[package]]
 name = "ide-ssh"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dirs 6.0.0",
 "flate2",
@@ -4590,7 +4555,7 @@ dependencies = [

 [[package]]
 name = "ide-syntax"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "ide-language",
@@ -4605,7 +4570,7 @@ dependencies = [

 [[package]]
 name = "ide-terminal"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "libc",
@@ -4618,7 +4583,7 @@ dependencies = [

 [[package]]
 name = "ide-text"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "criterion",
 "ide-core",
@@ -4630,7 +4595,7 @@ dependencies = [

 [[package]]
 name = "ide-tools"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "flate2",
 "hex",
@@ -4651,7 +4616,7 @@ dependencies = [

 [[package]]
 name = "ide-vcs"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "dunce",
 "encoding_rs",
@@ -4670,7 +4635,7 @@ dependencies = [

 [[package]]
 name = "ide-vfs"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "chardetng",
 "dunce",
@@ -4692,7 +4657,7 @@ dependencies = [

 [[package]]
 name = "ide-web"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "ide-core",
 "open",
@@ -4708,7 +4673,7 @@ dependencies = [

 [[package]]
 name = "ide-workspace"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
 "blake3",
 "dunce",
@@ -4718,7 +4683,6 @@ dependencies = [
 "ide-text",
 "ide-vfs",
 "parking_lot",
- "semver",
 "serde",
 "serde_json",
 "specta",
@@ -6180,14 +6144,12 @@ dependencies = [

 [[package]]
 name = "openidea"
-version = "0.1.35"
+version = "0.1.32"
 dependencies = [
- "base64 0.22.1",
 "blake3",
 "block2 0.6.2",
 "dirs 6.0.0",
 "dunce",
- "gtk",
 "ide-agent",
 "ide-analysis",
 "ide-build",
@@ -6197,7 +6159,6 @@ dependencies = [
 "ide-dap",
 "ide-db",
 "ide-docker",
- "ide-extension",
 "ide-fonts",
 "ide-github",
 "ide-host",
@@ -6229,8 +6190,6 @@ dependencies = [
 "objc2-foundation 0.3.2",
 "objc2-web-kit 0.3.2",
 "parking_lot",
- "percent-encoding",
- "security-framework",
 "serde",
 "serde_json",
 "specta",
@@ -6248,7 +6207,6 @@ dependencies = [
 "tracing",
 "tracing-appender",
 "tracing-subscriber",
- "windows-sys 0.61.2",
 ]

 [[package]]
@@ -1,11 +1,9 @@
 [workspace]
 resolver = "3"
 members = ["crates/*", "src-tauri"]
-# Plugins and the guest SDK build for wasm32-wasip2 in their own workspaces.
-exclude = ["sdk", "plugins"]

 [workspace.package]
-version = "0.1.35"
+version = "0.1.32"
 edition = "2024"
 rust-version = "1.96"
 license = "Apache-2.0"
@@ -43,8 +41,6 @@ ide-ssh = { path = "crates/ide-ssh" }
 ide-remote = { path = "crates/ide-remote" }
 ide-host = { path = "crates/ide-host" }
 ide-notebook = { path = "crates/ide-notebook" }
-ide-extension = { path = "crates/ide-extension" }
-ide-plugin = { path = "crates/ide-plugin" }

 # serialization & IPC typing
 serde = { version = "1", features = ["derive"] }
@@ -73,7 +69,6 @@ ropey = "1.6"
 encoding_rs = "0.8"
 chardetng = "0.1"
 ignore = "0.4"
-base64 = "0.22"
 globset = "0.4"
 notify = "8"
 notify-debouncer-full = "0.6"
@@ -14,6 +14,8 @@
  &nbsp;·&nbsp;
  <a href="#benchmark">Benchmark</a>
  &nbsp;·&nbsp;
+  <a href="#build">Build</a>
+  &nbsp;·&nbsp;
  <a href="https://discord.gg/2Zy4yn7gP">Discord</a>
 </p>

@@ -45,6 +47,24 @@ IDEA analyses Python more deeply, so "ready" doesn't mean the same work on
 both sides. Both are measured from the outside, the same way: see
 [`perf/compare`](perf/compare) to run it on your machine and projects.

+## Build
+
+```sh
+pnpm install
+pnpm tauri dev
+```
+
+Rust 1.96, Node 22, pnpm and the [Tauri prerequisites](https://v2.tauri.app/start/prerequisites/).
+
+Native notebook execution tests are opt-in and need two distinct Python environments
+with `ipykernel` installed:
+
+```sh
+OPENIDEA_TEST_PYTHON=/first/env/bin/python \
+OPENIDEA_TEST_PYTHON_SECOND=/second/env/bin/python \
+cargo test -p ide-notebook --test kernel_runtime -- --ignored --test-threads=1
+```
+
 ## License

 [Apache 2.0](LICENSE). Bundled third-party assets are listed in [`THIRD_PARTY_LICENSES.md`](THIRD_PARTY_LICENSES.md).
@@ -2,9 +2,8 @@

 ## Project Lombok

-`plugins/lombok/lombok-1.18.48-openidea.2.jar` contains Project Lombok v1.18.48 with the Equinox
-classloader fix from [projectlombok/lombok#4059](https://github.com/projectlombok/lombok/pull/4059)
-and the ECJ constructor-call fix from [projectlombok/lombok#4089](https://github.com/projectlombok/lombok/pull/4089).
+`plugins/lombok/lombok-1.18.48-openidea.1.jar` contains Project Lombok v1.18.48 with the Equinox
+classloader fix from [projectlombok/lombok#4059](https://github.com/projectlombok/lombok/pull/4059).
 Copyright (C) 2009-2021 The Project Lombok Authors. MIT license and bundled component
 notices are retained in [plugins/lombok/LICENSE](plugins/lombok/LICENSE) and inside the jar.
 Source tag, patch commits and build instructions: [plugins/lombok/README.md](plugins/lombok/README.md).
@@ -65,11 +64,6 @@ from its tests (`LineComparisonUtilTest`, `WordComparisonUtilTest`,
 `SplitComparisonUtilTest`). Modified from the originals. Copyright 2000-2026
 JetBrains s.r.o. and contributors. Apache License 2.0 (below).

-`src/features/vcs/mergeDiff3.ts`, `chunkOptimizer.ts` and `mergeModel.ts` also adapt
-the IntelliJ Platform merge implementation (`MergeRangeUtil`, `MergeResolveUtil`,
-`ChunkOptimizer.LineChunkOptimizer` and `MergeConflictModel`). Modified from the
-originals. Copyright 2000-2026 JetBrains s.r.o. and contributors. Apache License 2.0 (below).
-
 `src/ui/openidea/**` holds OpenIDEA's own file-type icons drawn in the expui style for
 languages whose JetBrains icons are not open source (Go, Ruby, Dart, Lua, Zig,
 Svelte, …). Those using the page-with-corner-badge layout (`goMod`, `goWork`,
@@ -1,9 +1,7 @@
 //! Session settings (model, mode, thinking effort…), slash commands and context use, as
 //! the agent reports them over ACP.

-use crate::model::{
-    AgentCommand, AgentConfigOption, AgentConfigValue, AgentConfigVia, AgentCost, AgentLimit, AgentUsage,
-};
+use crate::model::{AgentCommand, AgentConfigOption, AgentConfigValue, AgentConfigVia, AgentUsage};
 use serde_json::{Value, json};

 /// Cursor exposes execution modes over ACP, but leaves approval policy to its client.
@@ -152,27 +150,7 @@ pub(crate) fn commands_of(update: &Value) -> Vec<AgentCommand> {
 /// `usage_update`: `{ used, size }`.
 pub(crate) fn usage_of(update: &Value) -> Option<AgentUsage> {
    let tokens = |key: &str| update.get(key)?.as_f64().map(|n| n.clamp(0.0, f64::from(u32::MAX)) as u32);
-    let cost = update.get("cost").and_then(|c| {
-        Some(Box::new(AgentCost {
-            amount: c.get("amount")?.as_f64().filter(|a| a.is_finite() && *a >= 0.0)?,
-            currency: c.get("currency")?.as_str().filter(|c| !c.is_empty())?.to_owned(),
-        }))
-    });
-    Some(AgentUsage { used: tokens("used")?, size: tokens("size").filter(|s| *s > 0)?, cost })
-}
-
-/// The usage-limit windows a [`crate::LIMITS_UPDATE`] carries; malformed entries are skipped.
-pub(crate) fn limits_of(update: &Value) -> Vec<AgentLimit> {
-    let limits = update.get("limits").and_then(Value::as_array).into_iter().flatten();
-    limits
-        .filter_map(|l| {
-            Some(AgentLimit {
-                window: l.get("window")?.as_str().filter(|w| !w.is_empty())?.to_owned(),
-                used_percent: l.get("usedPercent")?.as_f64().filter(|p| p.is_finite())?.clamp(0.0, 100.0),
-                resets_ms: l.get("resetsMs").and_then(Value::as_f64),
-            })
-        })
-        .collect()
+    Some(AgentUsage { used: tokens("used")?, size: tokens("size").filter(|s| *s > 0)? })
 }

 fn legacy(
@@ -29,7 +29,7 @@ use serde::{Deserialize, Serialize};
 use serde_json::{Value, json};
 use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet, VecDeque};
 use std::path::{Path, PathBuf};
-use std::sync::atomic::{AtomicBool, AtomicU32, AtomicU64, Ordering};
+use std::sync::atomic::{AtomicBool, AtomicU32, Ordering};
 use std::sync::{Arc, Weak};
 use std::time::Duration;

@@ -44,16 +44,11 @@ const REPLAY_GRACE: Duration = Duration::from_millis(300);
 /// can trail its `session/prompt` response by this much.
 const TURN_GRACE: Duration = Duration::from_millis(100);
 const STDERR_LINES: usize = 20;
-/// An agent idle this long after its turn is stopped when it can reload its session
-/// (`session/load`): the next message starts it again where it left off.
-const IDLE_RELEASE: Duration = Duration::from_secs(5 * 60);
 /// Updates of a session's state rather than its conversation.
 const SESSION_STATE: [&str; 5] =
    ["session_info_update", "config_option_update", "current_mode_update", "available_commands_update", "usage_update"];
 /// A native agent's own update: it is about to retry a failed API request (see [`AgentRetry`]).
 pub(crate) const RETRY_UPDATE: &str = "openidea_retry";
-/// A native agent's own update: the usage limits of its account (see [`AgentLimit`]).
-pub(crate) const LIMITS_UPDATE: &str = "openidea_limits";
 /// Referenced files up to this size are embedded in the prompt (when the agent takes it).
 const MAX_EMBED: u64 = 256 * 1024;
 /// How long a probe waits for the agent to answer `initialize`.
@@ -95,8 +90,6 @@ struct Shared {
    providers: RwLock<Vec<provider::ProviderSpec>>,
    /// Last probe of each provider.
    probes: Mutex<HashMap<String, AgentProbe>>,
-    /// [`IDLE_RELEASE`], in milliseconds (shorter in tests).
-    idle_release_ms: AtomicU64,
 }

 /// What an agent offered in its last session, for the New Task page.
@@ -212,8 +205,6 @@ struct Live {
    capabilities: AgentCapabilities,
    /// `promptCapabilities.embeddedContext`: referenced files are sent with their text.
    embedded: bool,
-    /// `session/load`: the process can be stopped between turns and the session reloaded.
-    resumable: bool,
 }

 struct Task {
@@ -235,8 +226,6 @@ struct Task {
    cancel_pending: AtomicBool,
    /// The agent reported something for the current turn.
    turn_started: AtomicBool,
-    /// Turns sent so far: an idle release scheduled before the latest one is void.
-    turns: AtomicU64,
    /// Settings already sent this session (`(option, value)`), so a refusal is not retried.
    config_sent: Mutex<HashSet<(String, String)>>,
    dirty: Mutex<BTreeSet<(Session, usize)>>,
@@ -247,11 +236,6 @@ struct Task {
 }

 impl AgentManager {
-    #[cfg(test)]
-    fn set_idle_release(&self, delay: Duration) {
-        self.shared.idle_release_ms.store(delay.as_millis() as u64, Ordering::Relaxed);
-    }
-
    /// Loads the project's saved tasks. Spawned work runs on `runtime`.
    pub fn new(paths: AgentPaths, runtime: tokio::runtime::Handle) -> Self {
        let connector: Connector = Arc::new(|spec, cwd, client, on_stderr| match spec.driver {
@@ -276,7 +260,6 @@ impl AgentManager {
            known: Mutex::new(known),
            providers,
            probes: Mutex::new(HashMap::new()),
-            idle_release_ms: AtomicU64::new(IDLE_RELEASE.as_millis() as u64),
        });
        let mut tasks = HashMap::new();
        for file in std::fs::read_dir(&shared.paths.store_dir).into_iter().flatten().flatten() {
@@ -318,39 +301,21 @@ impl AgentManager {
        let specs = provider::load(self.shared.paths.custom_agents_dir.as_deref());
        let list = specs
            .iter()
-            .map(|p| {
-                let mut info = provider::describe(p);
-                info.config = self.shared.known_config(&p.id);
-                info.commands = self.shared.known_commands(&p.id);
-                info
+            .map(|p| AgentProvider {
+                id: p.id.clone(),
+                name: p.name.clone(),
+                command: std::iter::once(p.command.as_str())
+                    .chain(p.args.iter().map(String::as_str))
+                    .collect::<Vec<_>>()
+                    .join(" "),
+                installed: provider::installed(&p.command),
+                config: self.shared.known_config(&p.id),
+                commands: self.shared.known_commands(&p.id),
+                source: p.source.clone(),
            })
            .collect();
-        let mut prev = self.shared.providers.write();
-        let mut probes = self.shared.probes.lock();
-        probes.retain(|id, _| {
-            let old = prev.iter().find(|p| &p.id == id);
-            let new = specs.iter().find(|p| &p.id == id);
-            matches!((old, new), (Some(a), Some(b)) if a.command == b.command && a.args == b.args && a.env == b.env)
-        });
-        *prev = specs;
-        list
-    }
-
-    /// Overrides built-in `id`'s command with `command` (the driver and arguments stay
-    /// the built-in's) through its agent file, or returns it to auto-detection with `None`.
-    pub fn set_builtin_command(&self, id: &str, command: Option<String>) -> IdeResult<()> {
-        let Some(dir) = self.shared.paths.custom_agents_dir.clone() else {
-            return Err(IdeError::unavailable("there is no custom agents directory"));
-        };
-        provider::set_builtin_command(&dir, id, command.as_deref())
-    }
-
-    /// Re-reads configured/installed agents, drops cached probes, and notifies subscribers.
-    pub fn reload_providers(&self) {
-        let specs = provider::load(self.shared.paths.custom_agents_dir.as_deref());
        *self.shared.providers.write() = specs;
-        self.shared.probes.lock().clear();
-        self.shared.emit(AgentEvent::Providers);
+        list
    }

    /// The slash commands to complete for `provider`, in `task`'s directory or (without one)
@@ -843,8 +808,7 @@ impl AgentManager {
        // A copy of the task (a fork) may work in the same worktree.
        let shared = self.tasks.read().values().any(|t| t.id != id && t.state.lock().task.cwd.0 == cwd);
        if remove_worktree && !shared && isolation == Isolation::Worktree && cwd.exists() {
-            let worktrees = self.shared.paths.worktrees_dir.clone();
-            blocking(move || worktree::remove(&root, &worktrees, &cwd)).await?;
+            blocking(move || worktree::remove(&root, &cwd)).await?;
        }
        self.tasks.write().remove(id);
        *task.deleted.lock() = true;
@@ -903,7 +867,6 @@ impl Task {
            send_now: AtomicBool::new(false),
            cancel_pending: AtomicBool::new(false),
            turn_started: AtomicBool::new(false),
-            turns: AtomicU64::new(0),
            config_sent: Mutex::new(HashSet::new()),
            dirty: Mutex::new(BTreeSet::new()),
            flush_scheduled: AtomicBool::new(false),
@@ -1046,42 +1009,12 @@ impl Task {
            }
            match (next, result) {
                (Some(queued), _) => prompt = queued.prompt,
-                (None, Ok(_)) => {
-                    self.set_status(AgentStatus::Ready, None);
-                    return self.release_when_idle();
-                }
+                (None, Ok(_)) => return self.set_status(AgentStatus::Ready, None),
                (None, Err(failure)) => return self.fail(failure),
            }
        }
    }

-    /// Stops the agent's process once the task has stayed idle for [`IDLE_RELEASE`], so
-    /// finished tasks don't keep an agent (and what it started) running. Only an agent that
-    /// reloads its session: the next message starts it again with the conversation intact.
-    fn release_when_idle(self: &Arc<Self>) {
-        let turn = self.turns.load(Ordering::Acquire);
-        let delay = Duration::from_millis(self.shared.idle_release_ms.load(Ordering::Relaxed));
-        let task = Arc::downgrade(self);
-        self.shared.runtime.spawn(async move {
-            tokio::time::sleep(delay).await;
-            let Some(task) = task.upgrade() else { return };
-            if task.turns.load(Ordering::Acquire) != turn
-                || task.state.lock().busy
-                || !task.permissions.lock().is_empty()
-            {
-                return;
-            }
-            let live = {
-                let mut live = task.live.lock();
-                if live.as_ref().is_some_and(|l| l.resumable && !l.peer.is_closed()) { live.take() } else { None }
-            };
-            if let Some(live) = live {
-                tracing::debug!("agent task {}: idle, stopping the agent until the next message", task.id);
-                live.peer.kill();
-            }
-        });
-    }
-
    /// Ends a turn that failed: nothing it started stays open.
    fn fail(self: &Arc<Self>, failure: Failure) {
        self.cancel_permissions();
@@ -1142,7 +1075,6 @@ impl Task {

    /// Sends one prompt, starting the agent first if needed; returns the stop reason.
    async fn turn(self: &Arc<Self>, prompt: &AgentPrompt) -> Result<String, Failure> {
-        self.turns.fetch_add(1, Ordering::AcqRel);
        self.turn_started.store(false, Ordering::Release);
        self.state.lock().task.resets_ms = None;
        let attachments = prompt
@@ -1339,7 +1271,7 @@ impl Task {
        }
        self.persist();
        self.emit_task();
-        let live = Live { peer, session: session_id, capabilities, embedded, resumable: can_load };
+        let live = Live { peer, session: session_id, capabilities, embedded };
        *self.live.lock() = Some(live.clone());
        Ok(live)
    }
@@ -1421,13 +1353,6 @@ impl Task {
            }
            return;
        }
-        if kind == LIMITS_UPDATE {
-            if !self.replaying.load(Ordering::Acquire) {
-                let provider = self.state.lock().task.provider.clone();
-                self.shared.emit(AgentEvent::Limits { provider, limits: config::limits_of(update) });
-            }
-            return;
-        }
        if kind == "session_info_update" {
            // The agent's own title for the session replaces the first line of the prompt.
            let title = update.get("title").and_then(Value::as_str).map(str::trim).filter(|t| !t.is_empty());
@@ -154,30 +154,6 @@ pub struct AgentUsage {
    pub used: u32,
    /// Size of the context window.
    pub size: u32,
-    /// What the session has cost so far (ACP `usage_update.cost`), when the agent reports it.
-    // Boxed so that `AgentEvent::Task` stays within clippy's `large_enum_variant` bound on Windows.
-    #[serde(default)]
-    pub cost: Option<Box<AgentCost>>,
-}
-
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub struct AgentCost {
-    pub amount: f64,
-    /// ISO 4217 code, e.g. `USD`.
-    pub currency: String,
-}
-
-/// One usage-limit window of an agent's account.
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub struct AgentLimit {
-    /// The window as the agent names it: `five_hour`, `seven_day`, `seven_day_opus`…
-    pub window: String,
-    /// Share of the window used, 0–100.
-    pub used_percent: f64,
-    /// When the window resets (ms since the epoch), if the agent said.
-    pub resets_ms: Option<f64>,
 }

 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
@@ -346,15 +322,6 @@ pub struct AgentProvider {
    pub name: String,
    /// The command line that starts its ACP server.
    pub command: String,
-    /// Executable and arguments actually launched, without flattening paths containing spaces.
-    pub program: String,
-    pub args: Vec<String>,
-    pub default_program: Option<String>,
-    pub default_args: Vec<String>,
-    pub login_hint: Option<String>,
-    pub command_overridden: bool,
-    pub command_editable: bool,
-    pub command_read_only_reason: Option<AgentCommandReadOnlyReason>,
    /// Whether the command was found (on `PATH`).
    pub installed: bool,
    /// Settings (models, modes…) the agent offered last time it ran; empty before its first session.
@@ -364,15 +331,6 @@ pub struct AgentProvider {
    pub source: AgentSource,
 }

-/// Why the executable cannot be changed in built-in agent settings.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub enum AgentCommandReadOnlyReason {
-    PackageRunner,
-    Registry,
-    CustomAgent,
-}
-
 /// Where an agent comes from.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
 #[serde(tag = "kind", rename_all = "camelCase")]
@@ -455,11 +413,4 @@ pub enum AgentEvent {
        index: u32,
        entry: AgentEntry,
    },
-    /// An agent reported the usage limits of its account (shared by every task of `provider`).
-    Limits {
-        provider: String,
-        limits: Vec<AgentLimit>,
-    },
-    /// The installed or configured agent providers changed.
-    Providers,
 }
@@ -98,8 +98,6 @@ impl Cli for Process {
        use std::process::Stdio;
        let mut cmd = tokio::process::Command::new(&l.program);
        ide_core::process::prepare(cmd.as_std_mut());
-        // `claude` may be a wrapper (`claude.cmd` → node): stopping it stops what it started.
-        ide_core::process::own_group(cmd.as_std_mut());
        cmd.args(&l.args)
            .current_dir(&l.cwd)
            .envs(ide_core::process::shell_env())
@@ -122,9 +120,6 @@ impl Cli for Process {
            tokio::select! {
                _ = child.wait() => {}
                _ = token.cancelled() => {
-                    if let Some(pid) = child.id() {
-                        let _ = tokio::task::spawn_blocking(move || ide_core::process::kill_tree_of(pid)).await;
-                    }
                    let _ = child.start_kill();
                    let _ = child.wait().await;
                }
@@ -904,7 +904,6 @@ impl Session {
                    if info.get("status").and_then(Value::as_str) == Some("rejected") {
                        st.limit_resets_ms = info.get("resetsAt").and_then(Value::as_f64).map(|s| s * 1000.0);
                    }
-                    updates.extend(st.tr.on_rate_limit(&info));
                }
                "command_lifecycle" => {
                    let uuid = msg.get("command_uuid").and_then(Value::as_str);
@@ -1013,39 +1013,6 @@ fn streamed_text_is_not_sent_twice() {
    assert_eq!(usage[0].update, json!({"sessionUpdate": "usage_update", "used": 15, "size": 1000}));
 }

-#[test]
-fn rate_limits_and_cost() {
-    let mut t = Translator::new("s", PathBuf::from("/w"), false);
-    let info = json!({"status": "allowed", "rateLimitType": "five_hour", "unifiedWindows": {
-        "five_hour": {"utilization": 0.19, "resetsAt": 100, "status": "allowed"},
-        "seven_day": {"utilization": 0.09, "resetsAt": 200, "status": "allowed"},
-    }});
-    let limits = t.on_rate_limit(&info).unwrap();
-    assert_eq!(limits.session, "s");
-    assert_eq!(limits.update["sessionUpdate"], crate::LIMITS_UPDATE);
-    let windows: Vec<(&str, i64, f64)> = limits.update["limits"]
-        .as_array()
-        .unwrap()
-        .iter()
-        .map(|l| {
-            (
-                l["window"].as_str().unwrap(),
-                l["usedPercent"].as_f64().unwrap().round() as i64,
-                l["resetsMs"].as_f64().unwrap(),
-            )
-        })
-        .collect();
-    assert_eq!(windows, [("five_hour", 19, 100_000.0), ("seven_day", 9, 200_000.0)]);
-    // Older versions report the window that applies, alone.
-    let single = t.on_rate_limit(&json!({"rateLimitType": "seven_day", "utilization": 0.5})).unwrap();
-    assert_eq!(single.update["limits"], json!([{"window": "seven_day", "usedPercent": 50.0, "resetsMs": null}]));
-    assert_eq!(t.on_rate_limit(&json!({"status": "allowed", "resetsAt": 100})), None, "no utilization, no update");
-
-    t.used = Some(10);
-    let usage = t.on_result(&json!({"total_cost_usd": 0.5, "modelUsage": {"x": {"contextWindow": 1000}}}));
-    assert_eq!(usage[0].update["cost"], json!({"amount": 0.5, "currency": "USD"}));
-}
-
 #[test]
 fn tool_calls_plans_and_subagents() {
    let mut t = Translator::new("s", PathBuf::from("/w"), true);
@@ -5,7 +5,7 @@
 //! Agent tool use that launched them: their messages carry it as `parent_tool_use_id`.

 use super::tools;
-use crate::{LIMITS_UPDATE, RETRY_UPDATE};
+use crate::RETRY_UPDATE;
 use serde_json::{Value, json};
 use std::collections::{HashMap, VecDeque};
 use std::path::PathBuf;
@@ -58,8 +58,6 @@ pub(super) struct Translator {
    pub used: Option<u64>,
    pub model: Option<String>,
    windows: HashMap<String, u64>,
-    /// The session's cost so far in USD, as the last `result` reported it.
-    cost_usd: Option<f64>,
 }

 impl Translator {
@@ -77,7 +75,6 @@ impl Translator {
            used: None,
            model: None,
            windows: HashMap::new(),
-            cost_usd: None,
        }
    }

@@ -172,7 +169,7 @@ impl Translator {
                    Some("tool_use") => {
                        // The input streams after this: shown by name until the message has it.
                        let (id, name) = (str_of(&block, "id"), str_of(&block, "name"));
-                        if !(id.is_empty() || tools::is_plan(&name) || tools::is_agent(&name) && self.subagents) {
+                        if !id.is_empty() && !tools::is_plan(&name) && !(tools::is_agent(&name) && self.subagents) {
                            out.extend(self.ensure_call(&id, &name, &json!({}), &session));
                        }
                    }
@@ -546,9 +543,6 @@ impl Translator {
                self.windows.insert(model.clone(), w);
            }
        }
-        if let Some(cost) = result.get("total_cost_usd").and_then(Value::as_f64).filter(|c| c.is_finite()) {
-            self.cost_usd = Some(cost);
-        }
        self.usage_update().into_iter().collect()
    }

@@ -563,33 +557,9 @@ impl Translator {
                    .or_else(|| self.windows.iter().find(|(k, _)| k.starts_with(m.as_str())).map(|(_, v)| v))
            })
            .or_else(|| (self.windows.len() == 1).then(|| self.windows.values().next()).flatten())?;
-        let mut update = json!({ "sessionUpdate": "usage_update", "used": used, "size": size });
-        if let Some(amount) = self.cost_usd {
-            update["cost"] = json!({ "amount": amount, "currency": "USD" });
-        }
-        Some(Update { session: self.root.clone(), update })
-    }
-
-    /// The usage-limit windows a `rate_limit_event` reports, as a [`LIMITS_UPDATE`]: every
-    /// window of `unifiedWindows`, or the single `rateLimitType` window older versions send.
-    pub fn on_rate_limit(&self, info: &Value) -> Option<Update> {
-        let window = |name: &str, w: &Value| {
-            let utilization = w.get("utilization")?.as_f64()?;
-            Some(json!({
-                "window": name,
-                "usedPercent": utilization * 100.0,
-                "resetsMs": w.get("resetsAt").and_then(Value::as_f64).map(|s| s * 1000.0),
-            }))
-        };
-        let limits: Vec<Value> = match info.get("unifiedWindows").and_then(Value::as_object) {
-            Some(windows) => windows.iter().filter_map(|(name, w)| window(name, w)).collect(),
-            None => {
-                info.get("rateLimitType").and_then(Value::as_str).and_then(|t| window(t, info)).into_iter().collect()
-            }
-        };
-        (!limits.is_empty()).then(|| Update {
+        Some(Update {
            session: self.root.clone(),
-            update: json!({ "sessionUpdate": LIMITS_UPDATE, "limits": limits }),
+            update: json!({ "sessionUpdate": "usage_update", "used": used, "size": size }),
        })
    }
 }
@@ -2,8 +2,7 @@
 //! `<config>/agents/<id>.toml` (written by hand, or by installing one from the ACP
 //! Registry, see `registry`).

-use crate::{AgentCommandReadOnlyReason, AgentProvider, AgentSource};
-use ide_core::{IdeError, IdeResult};
+use crate::AgentSource;
 use serde::{Deserialize, Serialize};
 use std::collections::BTreeMap;
 use std::path::{Path, PathBuf};
@@ -81,92 +80,9 @@ fn builtins() -> Vec<ProviderSpec> {
        .collect()
 }

-/// Whether `id` names a built-in agent that needs no registry install (native drivers
-/// and `npx -y` adapters). CLI built-ins (`copilot`, `gemini`, …) can be installed and
-/// updated from the ACP Registry into `<config>/agents/<id>.toml`.
+/// Whether `id` names a built-in agent.
 pub(crate) fn is_builtin(id: &str) -> bool {
-    BUILTIN.iter().any(|&(bid, _, driver, cmd, _)| bid == id && (driver != Driver::Acp || cmd.first() == Some(&"npx")))
-}
-
-/// Display name of a built-in agent, when `id` is one.
-pub(crate) fn builtin_name(id: &str) -> Option<&'static str> {
-    BUILTIN.iter().find(|&&(bid, _, _, _, _)| bid == id).map(|&(_, name, _, _, _)| name)
-}
-
-/// The built-in spec of `id`.
-pub(crate) fn builtin_spec(id: &str) -> Option<ProviderSpec> {
-    builtins().into_iter().find(|s| s.id == id)
-}
-
-/// Public launch metadata, keeping the built-in defaults separate from agent-file overrides.
-pub(crate) fn describe(spec: &ProviderSpec) -> AgentProvider {
-    let builtin = builtin_spec(&spec.id);
-    let reason = if matches!(spec.source, AgentSource::Registry { .. }) {
-        Some(AgentCommandReadOnlyReason::Registry)
-    } else if let Some(default) = &builtin {
-        matches!(default.command.as_str(), "npx" | "bunx" | "uvx").then_some(AgentCommandReadOnlyReason::PackageRunner)
-    } else {
-        Some(AgentCommandReadOnlyReason::CustomAgent)
-    };
-    AgentProvider {
-        id: spec.id.clone(),
-        name: spec.name.clone(),
-        command: std::iter::once(spec.command.as_str())
-            .chain(spec.args.iter().map(String::as_str))
-            .collect::<Vec<_>>()
-            .join(" "),
-        program: spec.command.clone(),
-        args: spec.args.clone(),
-        default_program: builtin.as_ref().map(|b| b.command.clone()),
-        default_args: builtin.as_ref().map(|b| b.args.clone()).unwrap_or_default(),
-        login_hint: Some(spec.login_hint.clone()),
-        command_overridden: builtin.as_ref().is_some_and(|b| b.command != spec.command),
-        command_editable: reason.is_none(),
-        command_read_only_reason: reason,
-        installed: installed(&spec.command),
-        config: vec![],
-        commands: vec![],
-        source: spec.source.clone(),
-    }
-}
-
-/// Overrides built-in `id`'s command through its agent file, preserving other
-/// customizations. `None` restores the built-in command and removes a redundant file.
-pub(crate) fn set_builtin_command(custom_dir: &Path, id: &str, command: Option<&str>) -> IdeResult<()> {
-    let Some(builtin) = builtin_spec(id) else {
-        return Err(IdeError::invalid(format!("{id} is not a built-in agent")));
-    };
-    let file = custom_dir.join(format!("{id}.toml"));
-    let mut agent = if file.try_exists()? {
-        CustomAgent::read(&file).map_err(IdeError::invalid)?
-    } else {
-        CustomAgent {
-            name: Some(builtin.name.clone()),
-            driver: builtin.driver,
-            command: builtin.command.clone(),
-            args: builtin.args.clone(),
-            env: BTreeMap::new(),
-            registry: None,
-        }
-    };
-    if agent.registry.is_some() {
-        return Err(IdeError::invalid(format!("{id} is installed from the ACP Registry")));
-    }
-    if command.is_none()
-        && agent.name.as_deref() == Some(builtin.name.as_str())
-        && agent.driver == builtin.driver
-        && agent.args == builtin.args
-        && agent.env.is_empty()
-    {
-        match std::fs::remove_file(&file) {
-            Err(e) if e.kind() != std::io::ErrorKind::NotFound => return Err(e.into()),
-            _ => {}
-        }
-        return Ok(());
-    }
-    agent.command = command.unwrap_or(&builtin.command).to_owned();
-    agent.write(&file)?;
-    Ok(())
+    BUILTIN.iter().any(|b| b.0 == id)
 }

 /// An agent file, `<config>/agents/<id>.toml`.
@@ -246,7 +162,7 @@ pub(crate) fn load(custom_dir: Option<&Path>) -> Vec<ProviderSpec> {
            Some(r) => AgentSource::Registry { version: r.version, update: None },
            None => AgentSource::Custom,
        };
-        let mut spec = ProviderSpec {
+        let spec = ProviderSpec {
            name: agent.name.unwrap_or_else(|| id.clone()),
            driver: agent.driver,
            command: agent.command,
@@ -257,13 +173,7 @@ pub(crate) fn load(custom_dir: Option<&Path>) -> Vec<ProviderSpec> {
            id,
        };
        match specs.iter_mut().find(|s| s.id == spec.id) {
-            Some(existing) => {
-                spec.login_hint = existing.login_hint.clone();
-                if spec.source == AgentSource::Custom {
-                    spec.source = AgentSource::Builtin;
-                }
-                *existing = spec;
-            }
+            Some(existing) => *existing = spec,
            None => specs.push(spec),
        }
    }
@@ -301,54 +211,6 @@ fn is_executable(p: &Path) -> bool {
 mod tests {
    use super::*;

-    #[test]
-    fn launch_metadata_distinguishes_defaults_overrides_and_read_only_agents() {
-        let dir = tempfile::tempdir().unwrap();
-        let list = || load(Some(dir.path())).iter().map(describe).collect::<Vec<_>>();
-        let defaults = list();
-        let codex = defaults.iter().find(|p| p.id == "codex").unwrap();
-        assert_eq!(codex.program, "codex");
-        assert_eq!(codex.default_program.as_deref(), Some("codex"));
-        assert_eq!(codex.args, ["app-server"]);
-        assert_eq!(codex.default_args, codex.args);
-        assert_eq!(codex.command, "codex app-server");
-        assert_eq!(codex.login_hint.as_deref(), Some("Run `codex login` in a terminal."));
-        assert!(!codex.command_overridden);
-        assert!(codex.command_editable);
-        for p in &defaults {
-            assert_eq!(p.source, AgentSource::Builtin);
-            assert!(p.default_program.is_some());
-            assert_eq!(p.command_editable, !p.id.ends_with("-acp"));
-            assert_eq!(
-                p.command_read_only_reason,
-                p.id.ends_with("-acp").then_some(AgentCommandReadOnlyReason::PackageRunner)
-            );
-        }
-        set_builtin_command(dir.path(), "codex", Some("/path with spaces/codex")).unwrap();
-        let overridden = list().into_iter().find(|p| p.id == "codex").unwrap();
-        assert_eq!(overridden.program, "/path with spaces/codex");
-        assert_eq!(overridden.args, codex.args);
-        assert_eq!(overridden.default_program, codex.default_program);
-        assert!(overridden.command_overridden && overridden.command_editable);
-        assert_eq!(overridden.source, AgentSource::Builtin);
-        set_builtin_command(dir.path(), "codex", Some("codex")).unwrap();
-        assert!(!list().iter().find(|p| p.id == "codex").unwrap().command_overridden);
-        std::fs::write(
-            dir.path().join("gemini.toml"),
-            "command = \"/registry/gemini\"\n[registry]\nid = \"gemini\"\nversion = \"1.0\"\n",
-        )
-        .unwrap();
-        let registry = list().into_iter().find(|p| p.id == "gemini").unwrap();
-        assert_eq!(registry.default_program.as_deref(), Some("gemini"));
-        assert!(!registry.command_editable);
-        assert_eq!(registry.command_read_only_reason, Some(AgentCommandReadOnlyReason::Registry));
-        assert!(matches!(registry.source, AgentSource::Registry { .. }));
-        std::fs::write(dir.path().join("mine.toml"), "command = \"mine\"\n").unwrap();
-        let custom = list().into_iter().find(|p| p.id == "mine").unwrap();
-        assert_eq!(custom.default_program, None);
-        assert_eq!(custom.command_read_only_reason, Some(AgentCommandReadOnlyReason::CustomAgent));
-    }
-
    #[test]
    fn custom_agents_extend_and_override_the_builtins() {
        let dir = tempfile::tempdir().unwrap();
@@ -368,90 +230,6 @@ mod tests {
        assert!(installed("sh"));
    }

-    #[test]
-    fn set_builtin_command_overrides_and_clears_a_builtin() {
-        let dir = tempfile::tempdir().unwrap();
-        set_builtin_command(dir.path(), "not-a-builtin", Some("/x")).unwrap_err();
-        set_builtin_command(dir.path(), "claude", Some("/opt/claude")).unwrap();
-        let claude = load(Some(dir.path())).into_iter().find(|s| s.id == "claude").unwrap();
-        assert_eq!((claude.command.as_str(), claude.driver), ("/opt/claude", Driver::Claude));
-        assert!(claude.args.is_empty());
-        // A registry install is neither overwritten nor removed by a command override.
-        let path = dir.path().join("codex.toml");
-        CustomAgent {
-            name: None,
-            driver: Driver::Acp,
-            command: "amp".into(),
-            args: vec![],
-            env: BTreeMap::new(),
-            registry: Some(RegistryRef { id: "amp-acp".into(), version: "1.0.0".into() }),
-        }
-        .write(&path)
-        .unwrap();
-        set_builtin_command(dir.path(), "codex", Some("/x")).unwrap_err();
-        set_builtin_command(dir.path(), "codex", None).unwrap_err();
-        assert!(path.exists());
-        // Clearing (twice) returns the built-in to auto-detection.
-        set_builtin_command(dir.path(), "claude", None).unwrap();
-        set_builtin_command(dir.path(), "claude", None).unwrap();
-        assert!(!dir.path().join("claude.toml").exists());
-        assert_eq!(load(Some(dir.path())).iter().find(|s| s.id == "claude").unwrap().command, "claude");
-    }
-
-    #[test]
-    fn set_builtin_command_preserves_other_customizations_on_save_and_reset() {
-        let dir = tempfile::tempdir().unwrap();
-        let path = dir.path().join("claude.toml");
-        for field in ["name", "driver", "args", "env", "unnamed"] {
-            let mut agent = CustomAgent {
-                name: Some("Claude Code".into()),
-                driver: Driver::Claude,
-                command: "/old/claude".into(),
-                args: vec![],
-                env: BTreeMap::new(),
-                registry: None,
-            };
-            match field {
-                "name" => agent.name = Some("My Claude".into()),
-                "driver" => agent.driver = Driver::Acp,
-                "args" => agent.args.push("--verbose".into()),
-                "env" => {
-                    agent.env.insert("K".into(), "v".into());
-                }
-                "unnamed" => agent.name = None,
-                _ => unreachable!(),
-            }
-            agent.write(&path).unwrap();
-
-            set_builtin_command(dir.path(), "claude", Some("/new/claude")).unwrap();
-            agent.command = "/new/claude".into();
-            assert_eq!(CustomAgent::read(&path).unwrap(), agent, "{field}");
-
-            set_builtin_command(dir.path(), "claude", None).unwrap();
-            agent.command = "claude".into();
-            assert_eq!(CustomAgent::read(&path).unwrap(), agent, "{field}");
-        }
-    }
-
-    #[test]
-    fn resetting_a_command_only_override_removes_the_file() {
-        let dir = tempfile::tempdir().unwrap();
-        let path = dir.path().join("codex.toml");
-        std::fs::write(
-            &path,
-            "name = \"Codex\"\ndriver = \"codex\"\ncommand = \"/custom/codex\"\nargs = [\"app-server\"]\n",
-        )
-        .unwrap();
-
-        set_builtin_command(dir.path(), "codex", None).unwrap();
-
-        assert!(!path.exists());
-        assert_eq!(
-            load(Some(dir.path())).into_iter().find(|s| s.id == "codex").unwrap(),
-            builtin_spec("codex").unwrap()
-        );
-    }
-
    #[test]
    fn agent_files_round_trip_with_their_registry_table() {
        let dir = tempfile::tempdir().unwrap();
@@ -165,13 +165,6 @@ fn parse(text: &str) -> IdeResult<Vec<Entry>> {
        .into_iter()
        .filter_map(|v| serde_json::from_value::<Entry>(v).ok())
        .filter(|e| safe_segment(&e.id) && safe_segment(&e.version))
-        .map(|mut e| {
-            e.id = canonical_id(&e.id).to_owned();
-            if let Some(name) = provider::builtin_name(&e.id) {
-                e.name = name.to_owned();
-            }
-            e
-        })
        .collect())
 }

@@ -239,16 +232,11 @@ fn choose<'a>(entry: &'a Entry, platform: Platform, on_path: &dyn Fn(&str) -> bo
    None
 }

-/// Registry ids that map to a shorter built-in provider id (`<config>/agents/<id>.toml`).
-const BUILTIN_ALIASES: &[(&str, &str)] =
-    &[("github-copilot-cli", "copilot"), ("qwen-code", "qwen"), ("mistral-vibe", "vibe")];
-
-fn canonical_id(id: &str) -> &str {
-    BUILTIN_ALIASES.iter().find_map(|&(alias, canonical)| (alias == id).then_some(canonical)).unwrap_or(id)
-}
+/// Registry agents that are built-in ones under another id.
+const BUILTIN_ALIASES: &[&str] = &["github-copilot-cli", "qwen-code", "mistral-vibe"];

 fn is_builtin(id: &str) -> bool {
-    provider::is_builtin(canonical_id(id))
+    provider::is_builtin(id) || BUILTIN_ALIASES.contains(&id)
 }

 fn on_path(command: &str) -> bool {
@@ -399,7 +387,6 @@ fn write_atomic(path: &Path, bytes: &[u8]) -> std::io::Result<()> {
 /// Installs (or updates to) the registry's current version of `id`, streaming progress
 /// through `emit`, and points the agent file at it.
 pub fn install(paths: &RegistryPaths, id: &str, cancel: &CancellationToken, emit: Emit) -> IdeResult<()> {
-    let id = canonical_id(id);
    // The saved index is what the user picked from; fetch only when there is none.
    let text = match fs::read_to_string(&paths.cache_file) {
        Ok(text) => text,
@@ -631,7 +618,6 @@ fn install_uv(

 /// Deletes a registry agent's file and installed files.
 pub fn remove(paths: &RegistryPaths, id: &str) -> IdeResult<()> {
-    let id = canonical_id(id);
    if !safe_segment(id) {
        return Err(IdeError::invalid(format!("invalid agent id {id}")));
    }
@@ -826,7 +812,15 @@ mod tests {
        let mut providers: Vec<AgentProvider> = provider::load(Some(&p.agents_dir))
            .into_iter()
            .filter(|s| s.id == "amp-acp")
-            .map(|s| provider::describe(&s))
+            .map(|s| AgentProvider {
+                id: s.id,
+                name: s.name,
+                command: s.command,
+                installed: false,
+                config: vec![],
+                commands: vec![],
+                source: s.source,
+            })
            .collect();
        mark_updates(&p, &mut providers);
        assert_eq!(
@@ -952,56 +946,4 @@ mod tests {
        assert!(remove(&p, "amp-acp").is_err());
        assert!(p.agent_file("amp-acp").exists());
    }
-
-    #[test]
-    fn maps_github_copilot_cli_to_builtin_copilot_and_tracks_updates() {
-        let dir = tempfile::tempdir().unwrap();
-        let p = paths(dir.path());
-        let index = r#"{"agents":[
-            {"id":"github-copilot-cli","name":"Copilot","version":"1.0.105",
-             "description":"GitHub's AI pair programmer",
-             "distribution":{"npx":{"package":"@github/[email protected]","args":["--acp"]}}}
-        ]}"#;
-        let entries = parse(index).unwrap();
-        assert_eq!(entries.len(), 1);
-        assert_eq!((entries[0].id.as_str(), entries[0].name.as_str()), ("copilot", "GitHub Copilot"));
-
-        let shown = visible(&p, &entries, MAC_ARM, &|c| c == "npm" || c == "node");
-        assert_eq!(shown.len(), 1);
-        assert_eq!(
-            (shown[0].id.as_str(), shown[0].name.as_str(), shown[0].installed.as_deref()),
-            ("copilot", "GitHub Copilot", None)
-        );
-
-        CustomAgent {
-            name: Some("GitHub Copilot".into()),
-            driver: Driver::Acp,
-            command: "/data/tools/copilot/1.0.104/node_modules/.bin/copilot".into(),
-            args: vec!["--acp".into()],
-            env: BTreeMap::new(),
-            registry: Some(RegistryRef { id: "copilot".into(), version: "1.0.104".into() }),
-        }
-        .write(&p.agent_file("copilot"))
-        .unwrap();
-
-        let shown = visible(&p, &entries, MAC_ARM, &|c| c == "npm" || c == "node");
-        assert_eq!((shown[0].installed.as_deref(), shown[0].update), (Some("1.0.104"), true));
-
-        write_atomic(&p.cache_file, index.as_bytes()).unwrap();
-        let spec = provider::load(Some(&p.agents_dir)).into_iter().find(|s| s.id == "copilot").unwrap();
-        assert_eq!(spec.name, "GitHub Copilot");
-        assert_eq!(spec.login_hint, "Run `copilot` in a terminal and sign in.");
-        assert_eq!(spec.source, AgentSource::Registry { version: "1.0.104".into(), update: None });
-
-        let mut providers = vec![provider::describe(&spec)];
-        mark_updates(&p, &mut providers);
-        assert_eq!(
-            providers[0].source,
-            AgentSource::Registry { version: "1.0.104".into(), update: Some("1.0.105".into()) }
-        );
-
-        remove(&p, "github-copilot-cli").unwrap();
-        let fallback = provider::load(Some(&p.agents_dir)).into_iter().find(|s| s.id == "copilot").unwrap();
-        assert_eq!(fallback.source, AgentSource::Builtin);
-    }
 }
@@ -9,8 +9,6 @@ struct FakeAgent {
    /// Every connection's agent side, kept open.
    servers: Mutex<Vec<Peer>>,
    calls: Mutex<Vec<String>>,
-    /// Without `loadSession` (a session lives only as long as its process).
-    no_load: bool,
 }

 impl FakeAgent {
@@ -91,7 +89,7 @@ impl Handler for FakeAgent {
                if params.pointer("/clientCapabilities/subagents").is_some_and(Value::is_object) {
                    self.calls.lock().push("subagents".into());
                }
-                Ok(json!({"protocolVersion": 1, "agentCapabilities": {"loadSession": !self.no_load,
+                Ok(json!({"protocolVersion": 1, "agentCapabilities": {"loadSession": true,
                    "sessionCapabilities": {"fork": {}}, "_meta": {"openidea": {"rollback": true, "steer": true}}}}))
            }
            "session/new" => Ok(json!({"sessionId": "s1",
@@ -147,16 +145,7 @@ impl Handler for FakeAgent {
                    json!({"sessionUpdate": "available_commands_update",
                    "availableCommands": [{"name": "review", "description": "Review", "input": {"hint": "focus"}}]}),
                );
-                self.update(
-                    &session,
-                    json!({"sessionUpdate": "usage_update", "used": 50, "size": 1000,
-                    "cost": {"amount": 0.25, "currency": "USD"}}),
-                );
-                self.update(
-                    &session,
-                    json!({"sessionUpdate": LIMITS_UPDATE,
-                    "limits": [{"window": "five_hour", "usedPercent": 19.0, "resetsMs": 5000.0}]}),
-                );
+                self.update(&session, json!({"sessionUpdate": "usage_update", "used": 50, "size": 1000}));
                self.update(&session, json!({"sessionUpdate": "session_info_update", "title": "Lexer fix"}));
                self.say(&session, "Hi");
                self.update(
@@ -369,10 +358,6 @@ async fn a_task_runs_asks_for_permission_and_survives_a_restart() {
        assert_eq!((modes.via, modes.current.as_deref()), (AgentConfigVia::Mode, Some("ask")));
        assert_eq!(t.commands.iter().map(|c| c.name.as_str()).collect::<Vec<_>>(), ["review"]);
        assert_eq!(t.usage.as_ref().map(|u| (u.used, u.size)), Some((50, 1000)));
-        assert_eq!(
-            t.usage.as_ref().and_then(|u| u.cost.clone()),
-            Some(Box::new(AgentCost { amount: 0.25, currency: "USD".into() }))
-        );
        assert_eq!(t.title, "Lexer fix", "the agent's title replaces the prompt's first line");
    }
    mgr.set_config(&task.id, "mode", "code".into()).await.unwrap();
@@ -385,18 +370,6 @@ async fn a_task_runs_asks_for_permission_and_survives_a_restart() {
        assert!(
            events.iter().any(|e| matches!(e, AgentEvent::Task { task } if task.status == AgentStatus::NeedsInput))
        );
-        let limits = events.iter().find_map(|e| match e {
-            AgentEvent::Limits { provider, limits } => Some((provider.as_str(), limits.clone())),
-            _ => None,
-        });
-        assert_eq!(
-            limits,
-            Some((
-                task.provider.as_str(),
-                vec![AgentLimit { window: "five_hour".into(), used_percent: 19.0, resets_ms: Some(5000.0) }]
-            )),
-            "an agent's usage limits are its provider's"
-        );
        let last_entry = events.iter().rev().find_map(|e| match e {
            AgentEvent::Entry { index, entry, .. } if !matches!(entry, AgentEntry::User { .. }) => {
                Some((*index, entry.clone()))
@@ -799,18 +772,6 @@ fn retry_updates_become_a_countdown() {
    assert_eq!(retry_of(&json!({"sessionUpdate": RETRY_UPDATE}), 0.0), None, "no attempt");
 }

-#[test]
-fn usage_limits_and_cost_skip_what_is_malformed() {
-    let limits = config::limits_of(&json!({"sessionUpdate": LIMITS_UPDATE, "limits": [
-        {"window": "seven_day", "usedPercent": 140.0},
-        {"window": "", "usedPercent": 10.0},
-        {"window": "five_hour"},
-    ]}));
-    assert_eq!(limits, [AgentLimit { window: "seven_day".into(), used_percent: 100.0, resets_ms: None }]);
-    let usage = config::usage_of(&json!({"used": 1, "size": 2, "cost": {"amount": -1.0, "currency": "USD"}}));
-    assert_eq!(usage.map(|u| u.cost), Some(None), "a negative cost is dropped, the context use kept");
-}
-
 #[tokio::test(flavor = "multi_thread")]
 async fn cursor_approval_switch_resolves_pending_and_survives_restart() {
    let tmp = tempfile::tempdir().unwrap();
@@ -981,131 +942,3 @@ async fn task_project_root_controls_local_and_worktree_repositories() {
    }
    assert_eq!(git(&["worktree", "list", "--porcelain"]).matches("worktree ").count(), 1);
 }
-
-#[tokio::test(flavor = "multi_thread")]
-async fn reload_providers_updates_registry_install_clears_stale_probes_and_notifies_subscribers() {
-    let tmp = tempfile::tempdir().unwrap();
-    let agents_dir = tmp.path().join("agents");
-    std::fs::create_dir_all(&agents_dir).unwrap();
-    let fake_bin = tmp.path().join(if cfg!(windows) { "copilot.cmd" } else { "copilot" });
-    std::fs::write(&fake_bin, "").unwrap();
-    #[cfg(unix)]
-    {
-        use std::os::unix::fs::PermissionsExt;
-        std::fs::set_permissions(&fake_bin, std::fs::Permissions::from_mode(0o755)).unwrap();
-    }
-
-    let agent = Arc::new(FakeAgent::default());
-    let connector: Connector = {
-        let agent = agent.clone();
-        Arc::new(move |_spec, _cwd, client, _stderr| {
-            let (a, b) = duplex(1 << 20);
-            let (ar, aw) = tokio::io::split(a);
-            let (br, bw) = tokio::io::split(b);
-            let server = Peer::connect_framed(br, bw, agent.clone(), Framing::Lines);
-            agent.servers.lock().push(server);
-            Ok(Peer::connect_framed(ar, aw, client, Framing::Lines))
-        })
-    };
-    let mgr = AgentManager::with_connector(
-        AgentPaths {
-            project_root: tmp.path().to_path_buf(),
-            store_dir: tmp.path().join("store"),
-            worktrees_dir: tmp.path().join("worktrees"),
-            models_file: tmp.path().join("models.json"),
-            custom_agents_dir: Some(agents_dir.clone()),
-            home_dir: None,
-        },
-        tokio::runtime::Handle::current(),
-        connector,
-    );
-
-    // Seed a stale failed probe for copilot before installing its custom TOML.
-    mgr.shared.probes.lock().insert(
-        "copilot".into(),
-        AgentProbe {
-            provider: "copilot".into(),
-            name: None,
-            version: None,
-            protocol: "ACP".into(),
-            capabilities: AgentCapabilities::default(),
-            auth_methods: Vec::new(),
-            error: Some("copilot --acp was not found on PATH.".into()),
-        },
-    );
-
-    let events = Arc::new(Mutex::new(Vec::new()));
-    let events_sink = events.clone();
-    mgr.subscribe(Arc::new(move |ev| events_sink.lock().push(ev)));
-
-    let toml = format!(
-        "name = \"GitHub Copilot\"\ncommand = {:?}\nargs = [\"--acp\", \"--stdio\"]\n",
-        fake_bin.to_string_lossy()
-    );
-    std::fs::write(agents_dir.join("copilot.toml"), toml).unwrap();
-
-    mgr.reload_providers();
-
-    assert!(events.lock().iter().any(|ev| matches!(ev, AgentEvent::Providers)));
-    assert!(!mgr.shared.probes.lock().contains_key("copilot"));
-
-    let copilot = mgr.providers().into_iter().find(|p| p.id == "copilot").unwrap();
-    assert!(copilot.installed);
-    assert!(copilot.command.contains(&*fake_bin.to_string_lossy()));
-
-    let probe = mgr.probe("copilot", false).await.unwrap();
-    assert!(probe.error.is_none());
-}
-
-#[tokio::test(flavor = "multi_thread")]
-async fn idle_agents_stop_and_resume_their_session_on_the_next_message() {
-    let new = || NewAgentTask {
-        project_root: None,
-        prompt: text("again"),
-        provider: "claude".into(),
-        config: Vec::new(),
-        isolation: Isolation::Local,
-        base: None,
-    };
-    let live =
-        |mgr: &AgentManager, id: &str| mgr.task(id).unwrap().live.lock().as_ref().is_some_and(|l| !l.peer.is_closed());
-
-    let tmp = tempfile::tempdir().unwrap();
-    let agent = Arc::new(FakeAgent::default());
-    let mgr = manager(tmp.path(), agent.clone());
-    mgr.set_idle_release(Duration::from_millis(200));
-    let task = mgr.create(new()).await.unwrap();
-    wait_for(&mgr, &task.id, AgentStatus::Ready).await;
-    assert!(live(&mgr, &task.id));
-    // The process is stopped once the task stays idle…
-    tokio::time::sleep(Duration::from_millis(600)).await;
-    assert!(!live(&mgr, &task.id));
-    assert!(agent.servers.lock()[0].is_closed(), "its connection is closed");
-    assert_eq!(mgr.task(&task.id).unwrap().state.lock().task.status, AgentStatus::Ready, "not an error");
-    // …and the next message starts it again on the same session.
-    mgr.prompt(&task.id, text("again"), false).await.unwrap();
-    wait_for(&mgr, &task.id, AgentStatus::Ready).await;
-    assert!(agent.calls.lock().contains(&"session/load".to_owned()));
-    assert_eq!(
-        mgr.entries(&task.id, None).unwrap().iter().filter(|e| matches!(e, AgentEntry::Agent { .. })).count(),
-        2
-    );
-
-    // A new turn before the delay ran out keeps the agent.
-    mgr.prompt(&task.id, text("again"), false).await.unwrap();
-    tokio::time::sleep(Duration::from_millis(100)).await;
-    wait_for(&mgr, &task.id, AgentStatus::Ready).await;
-    assert!(live(&mgr, &task.id));
-    mgr.shutdown();
-
-    // An agent that can't reload its session keeps running: stopping it would lose the conversation.
-    let tmp = tempfile::tempdir().unwrap();
-    let agent = Arc::new(FakeAgent { no_load: true, ..FakeAgent::default() });
-    let mgr = manager(tmp.path(), agent.clone());
-    mgr.set_idle_release(Duration::from_millis(200));
-    let task = mgr.create(new()).await.unwrap();
-    wait_for(&mgr, &task.id, AgentStatus::Ready).await;
-    tokio::time::sleep(Duration::from_millis(600)).await;
-    assert!(live(&mgr, &task.id));
-    mgr.shutdown();
-}
@@ -48,24 +48,8 @@ pub(crate) fn create(project_root: &Path, worktrees_dir: &Path, title: &str, bas
    Ok(Created { path, branch, base, base_commit })
 }

-/// `git worktree remove --force -- <path>`. When git no longer recognizes the
-/// worktree (a pruned registration, a moved repository, a deleted `.git` file)
-/// it fails with "is not a working tree". A folder under `worktrees_dir` is still
-/// ours, so it is removed directly to keep the task deletable (a stale
-/// registration prunes later); anything else keeps git's error.
-pub(crate) fn remove(project_root: &Path, worktrees_dir: &Path, path: &Path) -> IdeResult<()> {
-    let repo = repo_at(project_root)?;
-    let err = match repo.remove_worktree(path, true) {
-        Ok(()) => return Ok(()),
-        Err(e) => e,
-    };
-    if !path.exists() {
-        return Ok(());
-    }
-    if !path.starts_with(worktrees_dir) || path == worktrees_dir {
-        return Err(err);
-    }
-    std::fs::remove_dir_all(path).map_err(|e| IdeError::internal(e.to_string()))
+pub(crate) fn remove(project_root: &Path, path: &Path) -> IdeResult<()> {
+    repo_at(project_root)?.remove_worktree(path, true)
 }

 /// Files under `cwd` that differ from `base` (untracked files included), with line counts.
@@ -169,7 +153,7 @@ mod tests {
        assert!(snapshot(&dir).unwrap().is_empty());
        assert_eq!(file_at(&dir, &dir.join("a.txt"), "HEAD").unwrap(), None);
        assert!(create(&dir, &tmp.path().join("wt"), "Edit A", None).is_err());
-        assert!(remove(&dir, tmp.path(), &dir).is_err());
+        assert!(remove(&dir, &dir).is_err());
    }

    fn git(dir: &Path, args: &[&str]) {
@@ -218,38 +202,7 @@ mod tests {

        // A second task with the same title gets its own worktree.
        assert_eq!(create(&repo, &tmp.path().join("wt"), "Edit A", None).unwrap().branch, "agent/edit-a-2");
-        remove(&repo, &tmp.path().join("wt"), &created.path).unwrap();
+        remove(&repo, &created.path).unwrap();
        assert!(!created.path.exists());
    }
-
-    #[test]
-    fn a_broken_worktree_registration_still_leaves_a_deletable_folder() {
-        let tmp = tempfile::tempdir().unwrap();
-        let repo = tmp.path().join("repo");
-        std::fs::create_dir(&repo).unwrap();
-        git(&repo, &["init", "-q", "-b", "main"]);
-        std::fs::write(repo.join("a.txt"), "one\n").unwrap();
-        git(&repo, &["add", "."]);
-        git(&repo, &["commit", "-q", "-m", "init"]);
-
-        // A pruned registration (the repository moved, `git worktree prune` ran).
-        let created = create(&repo, &tmp.path().join("wt"), "Edit A", None).unwrap();
-        let registration = repo.join(".git/worktrees").join(created.path.file_name().unwrap());
-        std::fs::remove_dir_all(registration).unwrap();
-        remove(&repo, &tmp.path().join("wt"), &created.path).unwrap();
-        assert!(!created.path.exists());
-
-        // A deleted `.git` file in the worktree itself.
-        let created = create(&repo, &tmp.path().join("wt"), "Edit B", None).unwrap();
-        std::fs::remove_file(created.path.join(".git")).unwrap();
-        remove(&repo, &tmp.path().join("wt"), &created.path).unwrap();
-        assert!(!created.path.exists());
-
-        // A folder outside the worktrees directory is never deleted by hand.
-        let elsewhere = tmp.path().join("elsewhere");
-        std::fs::create_dir(&elsewhere).unwrap();
-        std::fs::write(elsewhere.join("keep.txt"), "x\n").unwrap();
-        assert!(remove(&repo, &tmp.path().join("wt"), &elsewhere).is_err());
-        assert!(elsewhere.join("keep.txt").exists());
-    }
 }
@@ -8,12 +8,14 @@ license.workspace = true
 [dependencies]
 dunce.workspace = true
 ide-core.workspace = true
-zip.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 specta.workspace = true
 tracing.workspace = true
 dirs.workspace = true

+[target.'cfg(unix)'.dependencies]
+libc = "0.2"
+
 [dev-dependencies]
 tempfile.workspace = true
@@ -158,11 +158,8 @@ fn detect_dir(dir: &Path, model: &BuildModel, root: &Path) -> Option<BuildSystem
 }

 /// `root/rel`, without a trailing separator for the root itself.
-/// `root` / `rel`, joined per `/`-separated component: on Windows a single join of
-/// `a/b` keeps the `/`, and such a path does not compare equal to the same directory
-/// as other tools (JDT LS) spell it.
 fn subdir(root: &Path, rel: &str) -> PathBuf {
-    rel.split('/').filter(|part| !part.is_empty()).fold(root.to_path_buf(), |path, part| path.join(part))
+    if rel.is_empty() { root.to_path_buf() } else { root.join(rel) }
 }

 fn rel_str(root: &Path, dir: &Path) -> String {
@@ -188,10 +185,8 @@ pub fn plan(root: &Path, model: &BuildModel, kind: BuildKind, file: Option<&Path
        None => None,
    };
    let dir = module_dir.clone().unwrap_or_else(|| root.to_path_buf());
-    // A folder of sibling projects has no build file itself; its Maven projects are built one by one.
    let system = detect_dir(&dir, model, root)
        .or_else(|| if model.gradle.is_some() { Some(BuildSystem::Gradle) } else { None })
-        .or_else(|| model.maven.as_ref().filter(|m| !m.projects.is_empty()).map(|_| BuildSystem::Maven))
        .ok_or_else(|| IdeError::not_found("no supported build system (Maven, Gradle, Cargo, Go, TypeScript) found"))?;
    let module = module_dir.as_deref().filter(|d| *d != root);
    let title = match module {
@@ -740,11 +735,11 @@ fn launch_class_dirs(system: BuildSystem, module: &Path, test: bool) -> Vec<Path
            .iter()
            .flat_map(|s| {
                ["classes/kotlin", "classes/groovy", "classes/scala", "classes/java", "resources"]
-                    .map(|d| subdir(module, &format!("build/{d}/{s}")))
+                    .map(|d| module.join("build").join(d).join(s))
            })
            .collect(),
-        BuildSystem::Maven if test => vec![subdir(module, "target/test-classes"), subdir(module, "target/classes")],
-        BuildSystem::Maven => vec![subdir(module, "target/classes")],
+        BuildSystem::Maven if test => vec![module.join("target/test-classes"), module.join("target/classes")],
+        BuildSystem::Maven => vec![module.join("target/classes")],
        _ => Vec::new(),
    };
    dirs.into_iter().filter(|d| d.is_dir()).collect()
@@ -754,30 +749,6 @@ fn launch_class_dirs(system: BuildSystem, module: &Path, test: bool) -> Vec<Path
 mod tests {
    use super::*;

-    /// Launch outputs use the platform separator throughout, so they compare equal to
-    /// the same directories as JDT LS reports them.
-    #[test]
-    fn launch_dirs_use_one_separator() {
-        let root = tempfile::tempdir().unwrap();
-        let module = subdir(root.path(), "parent/app");
-        for dir in ["target/classes", "target/test-classes", "build/classes/java/main", "build/resources/test"] {
-            std::fs::create_dir_all(subdir(&module, dir)).unwrap();
-        }
-        let foreign = if std::path::MAIN_SEPARATOR == '\\' { '/' } else { '\\' };
-        let dirs = [
-            launch_class_dirs(BuildSystem::Maven, &module, true),
-            launch_class_dirs(BuildSystem::Gradle, &module, true),
-        ]
-        .concat();
-        assert_eq!(dirs.len(), 4, "{dirs:?}");
-        for dir in &dirs {
-            let suffix = dir.strip_prefix(root.path()).unwrap().to_string_lossy().into_owned();
-            assert!(!suffix.contains(foreign), "{suffix}");
-        }
-        assert_eq!(subdir(root.path(), ""), root.path());
-        assert_eq!(subdir(root.path(), "a//b/"), root.path().join("a").join("b"));
-    }
-
    fn write(root: &Path, rel: &str, text: &str) {
        let p = root.join(rel);
        std::fs::create_dir_all(p.parent().unwrap()).unwrap();
@@ -843,17 +814,6 @@ mod tests {
            ("pnpm", &["run".to_owned(), "build".to_owned()][..])
        );

-        let siblings = tmp.path().join("siblings");
-        write(&siblings, "core/pom.xml", "<project><artifactId>core</artifactId></project>");
-        write(&siblings, "system/pom.xml", "<project><artifactId>system</artifactId></project>");
-        let model = crate::load(&siblings, &tmp.path().join("cache3"), None);
-        let p = plan(&siblings, &model, BuildKind::Build, None).unwrap();
-        assert_eq!(p.system, BuildSystem::Maven);
-        assert_eq!(
-            p.steps.iter().map(|s| s.cwd.clone()).collect::<Vec<_>>(),
-            [siblings.join("core"), siblings.join("system")]
-        );
-
        let none = tmp.path().join("none");
        std::fs::create_dir_all(&none).unwrap();
        assert!(plan(&none, &BuildModel::default(), BuildKind::Build, None).is_err());
@@ -1,40 +0,0 @@
-// OpenIDEA Gradle sync: prints each project as Gradle evaluated it, one JSON line per project.
-// Read by `ide_build::gradle::parse_reported_projects`. Dependencies are not resolved: the
-// Java language server reads the classpath itself, and resolving is the slow part of an import.
-import groovy.json.JsonOutput
-
-def canon = { File f -> f.canonicalPath }
-// Init scripts also run in included builds and buildSrc, whose projects reuse `:`, `:core`…:
-// the identity path (`:lib:core`, `:buildSrc`) tells them apart and addresses their tasks
-// from the root build. Internal API, hence the fallback.
-def identity = { Project p -> try { p.identityPath.toString() } catch (ignored) { p.path } }
-
-def describe = { Project p ->
-    def m = [path: identity(p), dir: canon(p.projectDir), buildDir: canon(p.layout.buildDirectory.get().asFile)]
-    if (p.gradle.parent != null) m.build = identity(p.rootProject)
-    def sets = p.extensions.findByName('sourceSets')
-    if (sets != null) {
-        // Test source sets as IDEA classifies them: `test`, test fixtures, JVM test suites,
-        // and sets whose folders the `idea` plugin lists as test sources.
-        def suites = [] as Set
-        try { p.extensions.findByName('testing')?.suites?.each { suites << it.sources.name } } catch (ignored) {}
-        def ideaTests = [] as Set
-        try { p.extensions.findByName('idea')?.module?.testSources?.files?.each { ideaTests << canon(it) } } catch (ignored) {}
-        m.sourceSets = sets.collect { s ->
-            def res = s.resources.srcDirs.collect(canon)
-            def src = s.allSource.srcDirs.collect(canon) - res
-            def test = s.name == 'test' || s.name == 'testFixtures' || suites.contains(s.name) ||
-                s.name.endsWith('Test') || s.name.endsWith('Tests') ||
-                (!src.isEmpty() && src.every { ideaTests.contains(it) })
-            [name: s.name, test: test, src: src, res: res]
-        }
-    }
-    try {
-        def java = p.extensions.findByName('java')
-        def lv = java?.toolchain?.languageVersion?.getOrNull()
-        m.java = lv != null ? lv.asInt() : (java?.targetCompatibility?.majorVersion as Integer)
-    } catch (ignored) {}
-    println '@openidea-model\t' + JsonOutput.toJson(m)
-}
-
-gradle.projectsEvaluated { g -> g.rootProject.allprojects { describe(it) } }
@@ -32,8 +32,7 @@ pub struct GradleModel {
 #[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
 #[serde(rename_all = "camelCase")]
 pub struct GradleProject {
-    /// Gradle path: `:` for the root project, `:app`, `:libs:core`; for a project of a
-    /// nested build its identity path (`:lib:core`), which addresses its tasks from the root.
+    /// Gradle path: `:` for the root project, `:app`, `:libs:core`.
    pub path: String,
    pub name: String,
    /// Project-relative directory.
@@ -41,10 +40,6 @@ pub struct GradleProject {
    /// Project-relative build script, if any.
    pub build_file: Option<String>,
    pub tasks: Vec<GradleTask>,
-    /// Identity path of the nested build holding the project (`:lib` for `includeBuild`,
-    /// `:buildSrc`); null for the opened build.
-    #[serde(default)]
-    pub build: Option<String>,
 }

 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
@@ -134,88 +129,35 @@ fn include_args(after: &str) -> Vec<String> {
    out
 }

-/// What a settings script declares, read statically.
-#[derive(Debug, Default, PartialEq)]
-pub struct Settings {
-    pub name: Option<String>,
-    /// Included project paths (`:app`), in declaration order.
-    pub includes: Vec<String>,
-    /// Project directories that differ from the default `<path>` under the build
-    /// dir, relative to it: `includeFlat` siblings and literal `projectDir = file(..)`.
-    pub dirs: BTreeMap<String, String>,
-}
-
-/// The included projects, root project name and directory overrides of a settings script.
-/// Interpolated (`"$m"`) names and directories cannot be read without Gradle and are skipped.
-pub fn parse_settings(text: &str) -> Settings {
+/// `(root project name, included project paths)` from a settings script.
+pub fn parse_settings(text: &str) -> (Option<String>, Vec<String>) {
    let text = strip_comments(text);
-    let mut s = Settings::default();
+    let mut name = None;
+    let mut includes: Vec<String> = Vec::new();
    for (i, _) in text.match_indices("rootProject.name") {
        let line = text[i + "rootProject.name".len()..].lines().next().unwrap_or_default();
        if let Some(n) = literals(line).into_iter().next() {
-            s.name = Some(n);
+            name = Some(n);
        }
    }
    let mut from = 0;
    while let Some(i) = text[from..].find("include") {
        let at = from + i;
        from = at + "include".len();
-        let flat = text[from..].starts_with("Flat");
-        if flat {
-            from += "Flat".len();
-        }
        let before_ok = at == 0 || !text[..at].ends_with(|c: char| c.is_alphanumeric() || c == '_' || c == '.');
        let after = &text[from..];
        let after_ok = after.starts_with(|c: char| c == '(' || c.is_whitespace());
        if !before_ok || !after_ok {
            continue;
        }
-        for p in include_args(after).into_iter().filter(|p| !p.contains('$')) {
+        for p in include_args(after) {
            let path = if p.starts_with(':') { p } else { format!(":{p}") };
-            if path.len() <= 1 {
-                continue;
-            }
-            // `includeFlat 'a'` is the sibling directory `../a` of the root project.
-            if flat {
-                s.dirs.insert(path.clone(), format!("../{}", path.trim_start_matches(':')));
-            }
-            if !s.includes.contains(&path) {
-                s.includes.push(path);
+            if path.len() > 1 && !includes.contains(&path) {
+                includes.push(path);
            }
        }
    }
-    // `project(':a').projectDir = file('../a')`; a later assignment wins, as in Gradle.
-    for line in text.lines() {
-        let Some((left, right)) = line.split_once(".projectDir") else { continue };
-        let Some(right) = right.trim_start().strip_prefix('=') else { continue };
-        let Some(arg) = right.trim_start().strip_prefix("file") else { continue };
-        let (Some(path), Some(dir)) = (
-            left.rsplit_once("project").map(|(_, p)| literals(p)).and_then(|l| l.into_iter().next()),
-            literals(arg).into_iter().next(),
-        ) else {
-            continue;
-        };
-        if !path.contains('$') && !dir.contains('$') {
-            let path = if path.starts_with(':') { path } else { format!(":{path}") };
-            s.dirs.insert(path, dir);
-        }
-    }
-    s
-}
-
-/// `a/b/../c` → `a/c`, without touching the filesystem.
-fn normalize(p: &Path) -> PathBuf {
-    let mut out = PathBuf::new();
-    for c in p.components() {
-        match c {
-            std::path::Component::CurDir => {}
-            std::path::Component::ParentDir if out.file_name().is_some() => {
-                out.pop();
-            }
-            c => out.push(c),
-        }
-    }
-    out
+    (name, includes)
 }

 /// The directory of the Gradle build under `root`: the root itself, or a direct
@@ -293,159 +235,31 @@ pub fn default_tasks(is_root: bool, script: &str) -> Vec<GradleTask> {
 }

 /// Reads the Gradle build under `root` (no Gradle run), or `None` when there is none.
-fn read_first(d: &Path, names: &[&str]) -> Option<(String, String)> {
-    names.iter().find_map(|n| std::fs::read_to_string(d.join(n)).ok().map(|t| (n.to_string(), t)))
-}
-
-/// The project `path` in `pdir`, with the default tasks of its build script.
-/// Outside `root` the directory stays absolute (`rel` falls back).
-fn project_at(root: &Path, path: String, name: String, pdir: &Path) -> GradleProject {
-    let script = read_first(pdir, BUILD_FILES);
-    let tasks = default_tasks(path == ":", script.as_ref().map(|(_, t)| t.as_str()).unwrap_or_default());
-    GradleProject {
-        build_file: script.map(|(n, _)| rel(root, &pdir.join(n))),
-        dir: rel(root, pdir),
-        path,
-        name,
-        tasks,
-        build: None,
-    }
-}
-
-/// A project as Gradle evaluated it (the sync's init script, `gradle-model.gradle`).
-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct ReportedProject {
-    pub path: String,
-    /// Absolute, canonical.
-    pub dir: String,
-    /// Absolute output folder (`layout.buildDirectory`).
-    #[serde(default)]
-    pub build_dir: Option<String>,
-    #[serde(default)]
-    pub source_sets: Vec<ReportedSourceSet>,
-    /// Toolchain language version, else target compatibility.
-    #[serde(default)]
-    pub java: Option<u32>,
-    /// Identity path of the nested build (included build, buildSrc) reporting the project.
-    #[serde(default)]
-    pub build: Option<String>,
-}
-
-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize)]
-pub struct ReportedSourceSet {
-    pub name: String,
-    pub test: bool,
-    /// Absolute source folders (Java, Kotlin, Groovy, …), which need not exist.
-    #[serde(default)]
-    pub src: Vec<String>,
-    /// Absolute resource folders.
-    #[serde(default)]
-    pub res: Vec<String>,
-}
-
-const MODEL_LINE: &str = "@openidea-model\t";
-
-/// The projects printed by `gradle-model.gradle`; malformed lines are skipped.
-pub fn parse_reported_projects(output: &str) -> Vec<ReportedProject> {
-    output.lines().filter_map(|l| serde_json::from_str(l.trim_end().strip_prefix(MODEL_LINE)?).ok()).collect()
-}
-
-/// Source roots of the reported source sets: `(absolute folder, is test, is resources)`.
-pub fn reported_source_roots(reported: &[ReportedProject]) -> Vec<(PathBuf, ReportedRoot)> {
-    let mut out: Vec<(PathBuf, ReportedRoot)> = Vec::new();
-    for p in reported {
-        for set in &p.source_sets {
-            let (src, res) = if set.test {
-                (ReportedRoot::Test, ReportedRoot::TestResources)
-            } else {
-                (ReportedRoot::Source, ReportedRoot::Resources)
-            };
-            for (dir, kind) in set.src.iter().map(|d| (d, src)).chain(set.res.iter().map(|d| (d, res))) {
-                let dir = PathBuf::from(dir);
-                // A folder shared by `main` and another set is `main`'s, as in IDEA.
-                if !out.iter().any(|(d, _)| *d == dir) {
-                    out.push((dir, kind));
-                }
-            }
-        }
-        // IDEA excludes the build folder of every module.
-        if let Some(b) = &p.build_dir {
-            out.push((PathBuf::from(b), ReportedRoot::Excluded));
-        }
-    }
-    out
-}
-
-/// Role of a folder a Gradle sync reported.
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub enum ReportedRoot {
-    Source,
-    Test,
-    Resources,
-    TestResources,
-    Excluded,
-}
-
-/// Replaces the statically read projects with the ones Gradle reported (root first):
-/// settings scripts may compute their projects, which no static reading sees.
-pub fn merge_reported_projects(root: &Path, model: &mut GradleModel, reported: &[ReportedProject]) {
-    if reported.is_empty() {
-        return;
-    }
-    let root_name = model.projects.iter().find(|p| p.path == ":").map(|p| p.name.clone());
-    model.projects = reported
-        .iter()
-        .map(|p| {
-            let name = match p.path.as_str() {
-                ":" => root_name.clone().unwrap_or_default(),
-                path => path.rsplit(':').next().unwrap_or_default().to_owned(),
-            };
-            let mut project = project_at(root, p.path.clone(), name, Path::new(&p.dir));
-            // buildSrc is built before the build, never addressable as `:buildSrc:<task>`.
-            if p.build.as_deref().is_some_and(|b| b.ends_with(":buildSrc")) {
-                project.tasks.clear();
-            }
-            project.build = p.build.clone();
-            project
-        })
-        .collect();
-    // Each build reports its projects when it is evaluated (nested builds first).
-    model.projects.sort_by(|a, b| a.path.cmp(&b.path));
-    // One JDK runs the whole build: the newest any module needs.
-    if let Some(v) = reported.iter().filter_map(|p| p.java).max() {
-        model.java_version = Some(v);
-    }
-}
-
-/// Project directories outside `root`, outermost only (`../svc`, not also `../svc/sources/app`):
-/// the folders IDEA shows as extra top-level module roots.
-pub fn external_roots<'a>(root: &Path, dirs: impl IntoIterator<Item = &'a str>) -> Vec<PathBuf> {
-    let mut dirs: Vec<PathBuf> = dirs.into_iter().map(|d| root.join(d)).filter(|d| !d.starts_with(root)).collect();
-    dirs.sort();
-    dirs.dedup();
-    let mut out: Vec<PathBuf> = Vec::new();
-    for d in dirs {
-        if !out.iter().any(|o| d.starts_with(o)) {
-            out.push(d);
-        }
-    }
-    out
-}
-
 pub fn load(root: &Path) -> Option<GradleModel> {
    let dir = build_dir(root)?;
-    let settings = read_first(&dir, SETTINGS_FILES).map(|(_, t)| parse_settings(&t)).unwrap_or_default();
+    let read = |d: &Path, names: &[&str]| {
+        names.iter().find_map(|n| std::fs::read_to_string(d.join(n)).ok().map(|t| (n.to_string(), t)))
+    };
+    let (name, includes) = read(&dir, SETTINGS_FILES).map(|(_, t)| parse_settings(&t)).unwrap_or_default();
    let root_name =
-        settings.name.unwrap_or_else(|| dir.file_name().map(|n| n.to_string_lossy().into_owned()).unwrap_or_default());
-    let mut projects = vec![project_at(root, ":".into(), root_name, &dir)];
-    for path in settings.includes {
-        let pdir = match settings.dirs.get(&path) {
-            Some(d) => normalize(&dir.join(d)),
-            None => dir.join(path.trim_start_matches(':').replace(':', "/")),
-        };
+        name.unwrap_or_else(|| dir.file_name().map(|n| n.to_string_lossy().into_owned()).unwrap_or_default());
+    let mut projects = Vec::new();
+    let mut add = |path: String, name: String, pdir: PathBuf| {
+        let script = read(&pdir, BUILD_FILES);
+        let tasks = default_tasks(path == ":", script.as_ref().map(|(_, t)| t.as_str()).unwrap_or_default());
+        projects.push(GradleProject {
+            build_file: script.map(|(n, _)| rel(root, &pdir.join(n))),
+            dir: rel(root, &pdir),
+            path,
+            name,
+            tasks,
+        });
+    };
+    add(":".into(), root_name, dir.clone());
+    for path in includes {
+        let pdir = dir.join(path.trim_start_matches(':').replace(':', "/"));
        let name = path.rsplit(':').next().unwrap_or_default().to_owned();
-        projects.push(project_at(root, path, name, &pdir));
+        add(path, name, pdir);
    }
    let java_version = projects
        .iter()
@@ -544,32 +358,9 @@ pub fn build_files(root: &Path, model: &GradleModel) -> Vec<PathBuf> {
    let dir = root.join(&model.dir);
    let mut out: Vec<PathBuf> = SETTINGS_FILES.iter().map(|f| dir.join(f)).filter(|p| p.is_file()).collect();
    out.extend(model.projects.iter().filter_map(|p| p.build_file.as_ref().map(|f| root.join(f))));
-    // The settings of each nested build (its root project's folder).
-    for p in model.projects.iter().filter(|p| p.build.as_deref() == Some(p.path.as_str())) {
-        let nested = root.join(&p.dir);
-        out.extend(SETTINGS_FILES.iter().map(|f| nested.join(f)).filter(|f| f.is_file()));
-    }
-    // What IDEA's auto-import also watches: properties, the wrapper and version catalogs.
-    let extra = ["gradle.properties", "gradle/wrapper/gradle-wrapper.properties"].map(|f| dir.join(f));
-    out.extend(extra.into_iter().filter(|p| p.is_file()));
-    if let Ok(entries) = std::fs::read_dir(dir.join("gradle")) {
-        let mut catalogs: Vec<PathBuf> = entries
-            .flatten()
-            .map(|e| e.path())
-            .filter(|p| p.to_string_lossy().ends_with(".versions.toml") && p.is_file())
-            .collect();
-        catalogs.sort();
-        out.extend(catalogs);
-    }
    out
 }

-/// A build script without comments and with whitespace runs collapsed, so editing a
-/// comment or reformatting does not make a sync stale (IDEA hashes lexer tokens alike).
-pub(crate) fn script_fingerprint(text: &str) -> String {
-    strip_comments(text).split_whitespace().collect::<Vec<_>>().join(" ")
-}
-
 /// `(project path, task)` from `gradle tasks --all` console output; tasks listed as
 /// `app:run` belong to `:app`, unqualified ones to the root project `:`.
 pub fn parse_tasks(output: &str) -> Vec<(String, GradleTask)> {
@@ -660,60 +451,14 @@ dependencies {
            /* include("block") */
            includeBuild("plugins")
        "#;
-        let s = parse_settings(kts);
-        assert_eq!(s.name.as_deref(), Some("gradle-demo"));
-        assert_eq!(s.includes, [":app", ":lib", ":libs:core"]);
-        assert!(s.dirs.is_empty());
+        let (name, includes) = parse_settings(kts);
+        assert_eq!(name.as_deref(), Some("gradle-demo"));
+        assert_eq!(includes, [":app", ":lib", ":libs:core"]);

        let groovy = "rootProject.name = 'demo'\ninclude 'a',\n        'b'\ninclude ':c'\nprintln 'x'\n";
-        let s = parse_settings(groovy);
-        assert_eq!(s.name.as_deref(), Some("demo"));
-        assert_eq!(s.includes, [":a", ":b", ":c"]);
-    }
-
-    #[test]
-    fn settings_include_flat_and_project_dirs() {
-        let groovy = r#"
-            includeFlat 'svc-a'
-            includeFlat 'svc-b', 'svc-c' // trailing comment
-            ['x', 'y'].each { m -> include ":svc-a:$m" }
-            include ':wo'
-            project(':wo').projectDir = file('../svc-a/.worktrees/wo')
-            project(":dyn").projectDir = file("${rootDir}/dyn")
-            includeFlated 'not-a-call'
-        "#;
-        let s = parse_settings(groovy);
-        assert_eq!(s.includes, [":svc-a", ":svc-b", ":svc-c", ":wo"]);
-        assert_eq!(
-            s.dirs.into_iter().collect::<Vec<_>>(),
-            [
-                (":svc-a".into(), "../svc-a".into()),
-                (":svc-b".into(), "../svc-b".into()),
-                (":svc-c".into(), "../svc-c".into()),
-                (":wo".into(), "../svc-a/.worktrees/wo".into()),
-            ]
-        );
-
-        let kts = "includeFlat(\"k\")\nproject(\":k\").projectDir = file(\"../other\")";
-        let s = parse_settings(kts);
-        assert_eq!(s.includes, [":k"]);
-        assert_eq!(s.dirs.get(":k").map(String::as_str), Some("../other"));
-    }
-
-    #[test]
-    fn loads_include_flat_siblings() {
-        let tmp = tempfile::tempdir().unwrap();
-        let ws = tmp.path();
-        std::fs::create_dir_all(ws.join("root")).unwrap();
-        std::fs::create_dir_all(ws.join("svc")).unwrap();
-        std::fs::write(ws.join("root/settings.gradle"), "rootProject.name = 'Root'\nincludeFlat 'svc'").unwrap();
-        std::fs::write(ws.join("svc/build.gradle"), "plugins { id 'java' }").unwrap();
-        let root = ws.join("root");
-        let m = load(&root).unwrap();
-        let svc = m.projects.iter().find(|p| p.path == ":svc").unwrap();
-        assert_eq!(Path::new(&svc.dir), ws.join("svc"));
-        assert_eq!(svc.build_file.as_deref().map(Path::new), Some(ws.join("svc/build.gradle").as_path()));
-        assert!(root.join(svc.build_file.as_ref().unwrap()).is_file());
+        let (name, includes) = parse_settings(groovy);
+        assert_eq!(name.as_deref(), Some("demo"));
+        assert_eq!(includes, [":a", ":b", ":c"]);
    }

    #[test]
@@ -794,52 +539,4 @@ Pattern: clean<TaskName>: Cleans the output files of a task.
        let none = tempfile::tempdir().unwrap();
        assert!(load(none.path()).is_none());
    }
-
-    #[test]
-    fn merges_included_builds_and_build_src_by_identity_path() {
-        let tmp = tempfile::tempdir().unwrap();
-        let ws = tmp.path();
-        for d in ["shop/app", "shop/buildSrc", "lib/core"] {
-            std::fs::create_dir_all(ws.join(d)).unwrap();
-        }
-        std::fs::write(ws.join("shop/settings.gradle"), "rootProject.name = 'shop'\ninclude 'app'").unwrap();
-        std::fs::write(ws.join("lib/settings.gradle"), "include 'core'").unwrap();
-        let root = ws.join("shop");
-        // In evaluation order, as the init script prints it: nested builds first.
-        let line = |path: &str, d: &str, build: Option<&str>| {
-            let project = ReportedProject {
-                path: path.into(),
-                dir: ws.join(d).to_string_lossy().into_owned(),
-                build: build.map(Into::into),
-                ..ReportedProject::default()
-            };
-            format!("{MODEL_LINE}{}\n", serde_json::to_string(&project).unwrap())
-        };
-        let out = [
-            line(":lib", "lib", Some(":lib")),
-            line(":lib:core", "lib/core", Some(":lib")),
-            line(":buildSrc", "shop/buildSrc", Some(":buildSrc")),
-            line(":", "shop", None),
-            line(":app", "shop/app", None),
-        ]
-        .concat();
-        let mut model = load(&root).unwrap();
-        merge_reported_projects(&root, &mut model, &parse_reported_projects(&out));
-        let projects: Vec<_> =
-            model.projects.iter().map(|p| (p.path.as_str(), p.name.as_str(), p.build.as_deref())).collect();
-        assert_eq!(
-            projects,
-            [
-                (":", "shop", None),
-                (":app", "app", None),
-                (":buildSrc", "buildSrc", Some(":buildSrc")),
-                (":lib", "lib", Some(":lib")),
-                (":lib:core", "core", Some(":lib")),
-            ]
-        );
-        let build_src = &model.projects[2];
-        assert!(build_src.tasks.is_empty(), "buildSrc tasks cannot run from the root build");
-        assert!(!model.projects[4].tasks.is_empty());
-        assert!(build_files(&root, &model).contains(&ws.join("lib/settings.gradle")));
-    }
 }
@@ -18,7 +18,7 @@ mod xml;

 pub use gradle::{GradleModel, GradleProject, GradleTask};
 pub use maven::{MavenDependency, MavenModel, MavenPlugin, MavenProfile, MavenProject, Omission};
-pub use sync::{SyncOptions, SyncProgress, maven_profiles, save_maven_profiles, sync_gradle, sync_maven};
+pub use sync::{SyncOptions, SyncProgress, sync_gradle, sync_maven};

 use serde::{Deserialize, Serialize};
 use specta::Type;
@@ -65,18 +65,6 @@ pub fn load_linked(
    BuildModel { maven, gradle }
 }

-/// Gradle project folders outside `root` as of the last sync (`includeFlat` siblings):
-/// extra content roots, as IDEA lists module roots beside the project folder.
-/// Reads only the sync's cached projects (no build script), so it is cheap enough for hot paths.
-pub fn gradle_external_roots(root: &Path, cache_dir: &Path) -> Vec<PathBuf> {
-    gradle::external_roots(root, sync::reported_gradle_projects(cache_dir).iter().map(|p| p.dir.as_str()))
-}
-
-/// Source, resource and build folders of the last Gradle sync, absolute.
-pub fn gradle_source_roots(cache_dir: &Path) -> Vec<(PathBuf, gradle::ReportedRoot)> {
-    gradle::reported_source_roots(&sync::reported_gradle_projects(cache_dir))
-}
-
 /// A library the project depends on, as `groupId:artifactId:version`.
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct DependencyCoordinate {
@@ -11,9 +11,7 @@ use crate::xml::{self, Element};
 use serde::{Deserialize, Serialize};
 use specta::Type;
 use std::collections::{BTreeMap, HashMap, HashSet};
-use std::io::Read;
 use std::path::{Path, PathBuf};
-use std::sync::{Mutex, OnceLock};

 /// Phases shown under "Lifecycle" (IDEA's default list).
 pub const LIFECYCLE: &[&str] =
@@ -245,8 +243,7 @@ struct RawPom {
    plugins: Vec<RawPlugin>,
    managed_plugins: Vec<RawPlugin>,
    profiles: Vec<RawProfile>,
-    /// `maven-compiler-plugin` `<release>` / `<source>` of `<build><plugins>`, else of
-    /// `<pluginManagement>`.
+    /// `<build><plugins>` `maven-compiler-plugin` `<release>` / `<source>`.
    compiler_release: Option<String>,
 }

@@ -288,29 +285,11 @@ fn texts(e: &Element, path: &str, item: &str) -> Vec<String> {
    e.list(path, item).iter().map(|m| m.text.trim().to_owned()).filter(|m| !m.is_empty()).collect()
 }

-/// Child modules of a project or profile: `<modules>` (model 4.0.0) plus `<subprojects>`,
-/// which Maven 4 (model 4.1.0) uses instead.
-fn module_names(e: &Element) -> Vec<String> {
-    let mut names = texts(e, "modules", "module");
-    names.extend(texts(e, "subprojects", "subproject"));
-    names
-}
-
 fn read_build(e: &Element, plugins: &mut Vec<RawPlugin>, managed: &mut Vec<RawPlugin>) {
    plugins.extend(e.list("build/plugins", "plugin").into_iter().filter_map(read_plugin));
    managed.extend(e.list("build/pluginManagement/plugins", "plugin").into_iter().filter_map(read_plugin));
 }

-/// `maven-compiler-plugin` `<release>` / `<source>` among the plugins at `path`.
-fn compiler_level(project: &Element, path: &str) -> Option<String> {
-    project
-        .list(path, "plugin")
-        .into_iter()
-        .find(|p| p.text_of("artifactId").as_deref() == Some("maven-compiler-plugin"))
-        .and_then(|p| p.child("configuration"))
-        .and_then(|c| c.text_of("release").or_else(|| c.text_of("source")))
-}
-
 fn read_raw(project: &Element) -> RawPom {
    let parent = project.child("parent").and_then(|p| {
        Some(ParentRef {
@@ -329,7 +308,7 @@ fn read_raw(project: &Element) -> RawPom {
        name: project.text_of("name"),
        parent,
        properties: read_properties(project.child("properties")),
-        modules: module_names(project),
+        modules: texts(project, "modules", "module"),
        deps: project.list("dependencies", "dependency").into_iter().filter_map(read_dep).collect(),
        managed: project
            .list("dependencyManagement/dependencies", "dependency")
@@ -339,13 +318,18 @@ fn read_raw(project: &Element) -> RawPom {
        ..RawPom::default()
    };
    read_build(project, &mut pom.plugins, &mut pom.managed_plugins);
-    pom.compiler_release =
-        compiler_level(project, "build/plugins").or_else(|| compiler_level(project, "build/pluginManagement/plugins"));
+    if let Some(c) = pom.plugins.iter().position(|p| p.artifact_id == "maven-compiler-plugin") {
+        let plugin =
+            project.list("build/plugins", "plugin").into_iter().filter(|p| p.text_of("artifactId").is_some()).nth(c);
+        if let Some(cfg) = plugin.and_then(|p| p.child("configuration")) {
+            pom.compiler_release = cfg.text_of("release").or_else(|| cfg.text_of("source"));
+        }
+    }
    for p in project.list("profiles", "profile") {
        let mut profile = RawProfile {
            id: p.text_of("id").unwrap_or_else(|| "default".into()),
            active_by_default: p.at("activation/activeByDefault").is_some_and(|a| a.text.trim() == "true"),
-            modules: module_names(p),
+            modules: texts(p, "modules", "module"),
            properties: read_properties(p.child("properties")),
            deps: p.list("dependencies", "dependency").into_iter().filter_map(read_dep).collect(),
            ..RawProfile::default()
@@ -417,9 +401,6 @@ struct Inherited {
    managed: Vec<RawDep>,
    plugins: Vec<RawPlugin>,
    managed_plugins: Vec<RawPlugin>,
-    /// The nearest `maven-compiler-plugin` `<release>` / `<source>`: a module usually
-    /// inherits its compiler level from the parent's (managed) plugin configuration.
-    compiler_release: Option<String>,
    /// `<id>`, `activeByDefault`: profiles of the POM and its ancestors —
    /// Maven lets a child enable a parent's profiles with `-P`.
    profiles: Vec<(String, bool)>,
@@ -467,20 +448,13 @@ struct Resolver {
 /// `~/.m2/repository`, or `<localRepository>` from `~/.m2/settings.xml`.
 pub(crate) fn default_local_repo() -> Option<PathBuf> {
    let m2 = dirs::home_dir()?.join(".m2");
-    local_repository_of(&m2.join("settings.xml")).or(Some(m2.join("repository")))
-}
-
-/// `<localRepository>` of a settings file, when it names one: the repository a build
-/// with `-s <file>` resolves into, which is not necessarily the user's default.
-pub fn local_repository_of(settings: &Path) -> Option<PathBuf> {
-    let text = std::fs::read_to_string(settings).ok()?;
-    let root = xml::parse(&text)?;
-    let repo = root.text_of("localRepository")?.trim().to_owned();
-    if repo.is_empty() {
-        return None;
+    if let Some(settings) = std::fs::read_to_string(m2.join("settings.xml")).ok().and_then(|t| xml::parse(&t))
+        && let Some(repo) = settings.text_of("localRepository")
+    {
+        let home = dirs::home_dir().map(|h| h.to_string_lossy().into_owned()).unwrap_or_default();
+        return Some(PathBuf::from(repo.replace("${user.home}", &home)));
    }
-    let home = dirs::home_dir().map(|h| h.to_string_lossy().into_owned()).unwrap_or_default();
-    Some(PathBuf::from(repo.replace("${user.home}", &home)))
+    Some(m2.join("repository"))
 }

 impl Resolver {
@@ -547,9 +521,6 @@ impl Resolver {
        merge_by(&mut ctx.deps, &pom.deps, RawDep::key);
        merge_plugins(&mut ctx.plugins, &pom.plugins);
        merge_plugins(&mut ctx.managed_plugins, &pom.managed_plugins);
-        if pom.compiler_release.is_some() {
-            ctx.compiler_release = pom.compiler_release.clone();
-        }
        for p in pom.profiles.iter().filter(|p| p.active_by_default) {
            merge_by(&mut ctx.properties, &p.properties, |(k, _)| k.clone());
            merge_by(&mut ctx.deps, &p.deps, RawDep::key);
@@ -709,76 +680,7 @@ pub fn goal_prefix(artifact_id: &str) -> String {
    artifact_id.strip_suffix("-plugin").unwrap_or(artifact_id).to_owned()
 }

-/// Goals of every plugin jar read so far, by the path of that jar.
-static DESCRIPTOR: OnceLock<Mutex<HashMap<String, Vec<String>>>> = OnceLock::new();
-
-/// `<goal>` names of the plugin descriptor inside its jar (`META-INF/maven/plugin.xml`),
-/// which is where Maven itself takes the list `plugin:help` prints. Empty when the jar
-/// is not in the local repository yet.
-fn descriptor_goals(repo: &Path, group_id: &str, artifact_id: &str, version: &str) -> Vec<String> {
-    // Keyed by the jar itself, not by its coordinates: a repository can be replaced
-    // between runs, and a test's empty repository must not answer for another's.
-    // One `push` per group segment: the layout is `<repo>/<group as directories>/…` on
-    // every platform, Windows' separator included.
-    let mut dir = repo.to_path_buf();
-    dir.extend(group_id.split('.'));
-    dir.push(artifact_id);
-    dir.push(version);
-    let Some(jar) = plugin_jar(&dir, artifact_id, version) else { return Vec::new() };
-    let key = jar.to_string_lossy().into_owned();
-    let cache = DESCRIPTOR.get_or_init(|| Mutex::new(HashMap::new()));
-    if let Some(cached) = cache.lock().unwrap_or_else(|e| e.into_inner()).get(&key) {
-        return cached.clone();
-    }
-    // A failed read is not remembered: the jar may be half written by Maven right now.
-    let Some(goals) = read_descriptor(&jar) else { return Vec::new() };
-    cache.lock().unwrap_or_else(|e| e.into_inner()).insert(key, goals.clone());
-    goals
-}
-
-/// The plugin's jar in its version directory: `<artifactId>-<version>.jar`, or — for a
-/// SNAPSHOT installed from a repository, whose file name carries a timestamp — the newest
-/// `<artifactId>-*.jar` that is neither sources nor javadoc.
-fn plugin_jar(dir: &Path, artifact_id: &str, version: &str) -> Option<PathBuf> {
-    let exact = dir.join(format!("{artifact_id}-{version}.jar"));
-    if exact.is_file() {
-        return Some(exact);
-    }
-    let prefix = format!("{artifact_id}-");
-    let mut best: Option<(std::time::SystemTime, PathBuf)> = None;
-    for entry in std::fs::read_dir(dir).ok()?.flatten() {
-        let path = entry.path();
-        let Some(name) = path.file_name().and_then(|n| n.to_str()) else { continue };
-        if !name.starts_with(&prefix) || !name.ends_with(".jar") || name.ends_with("-sources.jar") {
-            continue;
-        }
-        if name.ends_with("-javadoc.jar") {
-            continue;
-        }
-        let Ok(modified) = entry.metadata().and_then(|m| m.modified()) else { continue };
-        if best.as_ref().is_none_or(|(at, _)| modified > *at) {
-            best = Some((modified, path));
-        }
-    }
-    best.map(|(_, p)| p)
-}
-
-fn read_descriptor(jar: &Path) -> Option<Vec<String>> {
-    let file = std::fs::File::open(jar).ok()?;
-    let mut archive = zip::ZipArchive::new(file).ok()?;
-    let mut entry = archive.by_name("META-INF/maven/plugin.xml").ok()?;
-    let mut text = String::new();
-    entry.read_to_string(&mut text).ok()?;
-    let root = xml::parse(&text)?;
-    let mut goals: Vec<String> =
-        root.list("mojos", "mojo").iter().filter_map(|m| m.text_of("goal")).map(|g| g.trim().to_owned()).collect();
-    goals.retain(|g| !g.is_empty());
-    goals.sort();
-    goals.dedup();
-    Some(goals)
-}
-
-/// Goals of well-known plugins, for a jar that is not in the local repository yet.
+/// Goals of well-known plugins (their plugin descriptors are not read).
 fn known_goals(artifact_id: &str) -> &'static [&'static str] {
    match artifact_id {
        "maven-clean-plugin" => &["clean", "help"],
@@ -930,27 +832,9 @@ fn lifecycle_plugins(packaging: &str) -> &'static [&'static str] {
    }
 }

-/// A plugin as shown in the tree: the goals its jar declares, the ones known by name for
-/// the common plugins, and the ones the project binds in `<executions>`, sorted. IDEA lists
-/// a plugin's goals the same way, which is why a plugin outside the table (checkstyle, say)
-/// still shows every goal it offers instead of only the bound one.
-pub(crate) fn plugin(
-    group_id: &str,
-    artifact_id: &str,
-    version: Option<String>,
-    goals: &[String],
-    local_repo: Option<&Path>,
-) -> MavenPlugin {
+/// A plugin as shown in the tree: execution goals plus the plugin's known goals, sorted.
+pub(crate) fn plugin(group_id: &str, artifact_id: &str, version: Option<String>, goals: &[String]) -> MavenPlugin {
    let mut all: Vec<String> = known_goals(artifact_id).iter().map(|g| (*g).to_owned()).collect();
-    let repo = local_repo.map(Path::to_path_buf).or_else(default_local_repo);
-    // An unresolved `${…}` version names no jar: the table and the bound goals stand in.
-    if let (Some(repo), Some(version)) = (repo.as_deref(), version.as_deref().filter(|v| !v.contains("${"))) {
-        for g in descriptor_goals(repo, group_id, artifact_id, version) {
-            if !all.contains(&g) {
-                all.push(g);
-            }
-        }
-    }
    for g in goals {
        if !all.contains(g) {
            all.push(g.clone());
@@ -978,19 +862,13 @@ fn rel_path(root: &Path, p: &Path) -> String {
 }

 /// The POMs that are not modules of another one: the root `pom.xml`, else the
-/// shallowest `pom.xml` of each branch (a folder holding several builds). An
-/// aggregate POM directly inside `src/` counts too (issue #1001: `src/pom.xml`
-/// with its modules beside it, `src/app/pom.xml` and so on).
+/// shallowest `pom.xml` of each branch (a folder holding several builds).
 fn top_level_poms(root: &Path) -> Vec<PathBuf> {
    let top = root.join("pom.xml");
    if top.is_file() {
        return vec![top];
    }
    let mut out = Vec::new();
-    let src_pom = root.join("src").join("pom.xml");
-    if src_pom.is_file() {
-        out.push(src_pom);
-    }
    let mut queue: Vec<(PathBuf, usize)> = vec![(root.to_path_buf(), 0)];
    while let Some((dir, depth)) = queue.pop() {
        let Ok(entries) = std::fs::read_dir(&dir) else { continue };
@@ -1004,16 +882,9 @@ fn top_level_poms(root: &Path) -> Vec<PathBuf> {
        }
        dirs.sort();
        for d in dirs.into_iter().rev() {
-            let pom = d.join("pom.xml");
-            if pom.is_file() {
-                out.push(pom);
-                continue;
-            }
-            let src_pom = d.join("src").join("pom.xml");
-            if src_pom.is_file() {
-                out.push(src_pom);
-            }
-            if depth + 1 < POM_SEARCH_DEPTH {
+            if d.join("pom.xml").is_file() {
+                out.push(d.join("pom.xml"));
+            } else if depth + 1 < POM_SEARCH_DEPTH {
                queue.push((d, depth + 1));
            }
        }
@@ -1128,14 +999,14 @@ pub(crate) fn load_with_repo(root: &Path, local_repo: Option<PathBuf>) -> MavenM
                    .or_else(|| ctx.managed_plugins.iter().find(|m| m.key() == p.key()).and_then(|m| m.version.clone()))
                    .map(|v| i(&v))
                    .filter(|v| !v.contains("${"));
-                plugin(&i(&p.group_id), &i(&p.artifact_id), version, &p.goals, resolver.local_repo.as_deref())
+                plugin(&i(&p.group_id), &i(&p.artifact_id), version, &p.goals)
            })
            .collect();

        let jv = ["maven.compiler.release", "java.version", "maven.compiler.source", "maven.compiler.target"]
            .iter()
            .find_map(|k| props.get(*k).map(|v| i(v)))
-            .or_else(|| ctx.compiler_release.as_deref().map(i))
+            .or_else(|| pom.compiler_release.as_deref().map(i))
            .and_then(|v| java_version(&v));

        // The project can activate the profiles of its own POM and its ancestors'.
@@ -1208,40 +1079,6 @@ impl UnlinkedProjects {
        self.poms.iter().map(String::as_str)
    }

-    /// The POMs the Java language server should import when an unlinked POM is a module of a
-    /// linked reactor, else `None` (excluding the unlinked directories is enough then).
-    ///
-    /// jdtls imports an aggregator together with all of its modules, whatever its import
-    /// exclusions say, so a reactor keeping an unlinked module is left out; its other linked
-    /// modules are listed on their own. Such an aggregator (`pom` packaging) has no sources.
-    pub fn import_poms(&self, model: &MavenModel) -> Option<Vec<String>> {
-        let linked: Vec<&MavenProject> = model.projects.iter().filter(|p| !self.contains(&p.pom)).collect();
-        if !linked.iter().any(|p| p.modules.iter().any(|m| self.contains(m))) {
-            return None;
-        }
-        let by_pom: std::collections::HashMap<String, &MavenProject> =
-            model.projects.iter().map(|p| (normalized_pom(&p.pom), p)).collect();
-        // Whether `pom`'s module tree reaches an unlinked POM.
-        let reaches_unlinked = |pom: &str| {
-            let mut seen = std::collections::HashSet::new();
-            let mut pending = vec![normalized_pom(pom)];
-            while let Some(pom) = pending.pop() {
-                if !seen.insert(pom.clone()) {
-                    continue;
-                }
-                let Some(project) = by_pom.get(&pom) else { continue };
-                for module in &project.modules {
-                    if self.contains(module) {
-                        return true;
-                    }
-                    pending.push(normalized_pom(module));
-                }
-            }
-            false
-        };
-        Some(linked.into_iter().filter(|p| !reaches_unlinked(&p.pom)).map(|p| normalized_pom(&p.pom)).collect())
-    }
-
    pub fn filter(&self, model: &mut MavenModel) {
        model.projects.retain(|p| !self.contains(&p.pom));
        for project in &mut model.projects {
@@ -1274,16 +1111,6 @@ pub fn build_files(root: &Path, model: &MavenModel) -> Vec<PathBuf> {
 /// Projects and their plugins / dependencies from `mvn help:effective-pom` output
 /// (`<project>` or `<projects>`), keyed `groupId:artifactId`.
 pub fn parse_effective_pom(text: &str) -> Vec<(String, Vec<MavenPlugin>, Vec<MavenDependency>)> {
-    parse_effective_pom_in(text, None)
-}
-
-/// The same, with the local repository the project actually builds against (a
-/// `-Dmaven.repo.local` of the build, say): the plugin goals come from jars there,
-/// rather than from the user's default one.
-pub fn parse_effective_pom_in(
-    text: &str,
-    local_repo: Option<&Path>,
-) -> Vec<(String, Vec<MavenPlugin>, Vec<MavenDependency>)> {
    let Some(root) = xml::parse(text) else { return Vec::new() };
    let projects: Vec<&Element> =
        if root.name == "projects" { root.children_named("project").collect() } else { vec![&root] };
@@ -1295,7 +1122,7 @@ pub fn parse_effective_pom_in(
            let plugins = raw
                .plugins
                .iter()
-                .map(|pl| plugin(&pl.group_id, &pl.artifact_id, pl.version.clone(), &pl.goals, local_repo))
+                .map(|pl| plugin(&pl.group_id, &pl.artifact_id, pl.version.clone(), &pl.goals))
                .collect();
            let deps = raw
                .deps
@@ -1426,107 +1253,6 @@ pub fn parse_dependency_tree(output: &str) -> Vec<(String, Vec<MavenDependency>)
 mod tests {
    use super::*;

-    /// A plugin jar in `repo` whose descriptor declares `goals`.
-    fn write_plugin_jar(repo: &Path, group: &str, artifact: &str, version: &str, goals: &[&str]) {
-        let dir = repo.join(group.replace('.', "/")).join(artifact).join(version);
-        std::fs::create_dir_all(&dir).unwrap();
-        let mojos: String = goals.iter().map(|g| format!("<mojo><goal>{g}</goal></mojo>")).collect();
-        let descriptor = format!("<plugin><mojos>{mojos}</mojos></plugin>");
-        let file = std::fs::File::create(dir.join(format!("{artifact}-{version}.jar"))).unwrap();
-        let mut zip = zip::ZipWriter::new(file);
-        zip.start_file("META-INF/maven/plugin.xml", zip::write::SimpleFileOptions::default()).unwrap();
-        std::io::Write::write_all(&mut zip, descriptor.as_bytes()).unwrap();
-        zip.finish().unwrap();
-    }
-
-    #[test]
-    fn a_plugin_lists_the_goals_its_jar_declares() {
-        let tmp = tempfile::tempdir().unwrap();
-        let repo = tmp.path();
-        write_plugin_jar(
-            repo,
-            "org.apache.maven.plugins",
-            "maven-checkstyle-plugin",
-            "3.3.1",
-            &["checkstyle", "checkstyle-aggregate", "help", "check"],
-        );
-        let p = plugin(
-            "org.apache.maven.plugins",
-            "maven-checkstyle-plugin",
-            Some("3.3.1".into()),
-            &["check".to_owned()],
-            Some(repo),
-        );
-        assert_eq!(p.goals, ["check", "checkstyle", "checkstyle-aggregate", "help"], "every goal the plugin offers");
-        assert_eq!(p.prefix, "checkstyle");
-    }
-
-    #[test]
-    fn a_settings_file_names_the_repository_to_read_goals_from() {
-        let tmp = tempfile::tempdir().unwrap();
-        let settings = tmp.path().join("settings.xml");
-        std::fs::write(
-            &settings,
-            "<settings><localRepository>${user.home}/repo-from-settings</localRepository></settings>",
-        )
-        .unwrap();
-        let repo = local_repository_of(&settings).unwrap();
-        assert!(repo.ends_with("repo-from-settings"), "{}", repo.display());
-        assert!(!repo.to_string_lossy().contains("${user.home}"));
-        // A settings file that names none leaves Maven's default alone.
-        let plain = tmp.path().join("plain.xml");
-        std::fs::write(&plain, "<settings><offline>true</offline></settings>").unwrap();
-        assert!(local_repository_of(&plain).is_none());
-        assert!(local_repository_of(&tmp.path().join("missing.xml")).is_none());
-    }
-
-    #[test]
-    fn effective_pom_goals_come_from_the_local_repository_it_is_given() {
-        let tmp = tempfile::tempdir().unwrap();
-        write_plugin_jar(tmp.path(), "org.apache.maven.plugins", "maven-demo-plugin", "1.0", &["run", "help"]);
-        let text = "<project><groupId>g</groupId><artifactId>a</artifactId><build><plugins>\
-            <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-demo-plugin</artifactId>\
-            <version>1.0</version><executions><execution><goals><goal>run</goal></goals></execution></executions>\
-            </plugin></plugins></build></project>";
-        let with_repo = parse_effective_pom_in(text, Some(tmp.path()));
-        assert_eq!(with_repo[0].1[0].goals, ["help", "run"], "the jar's own goals come first");
-        // Without that repository the plugin is unknown: only what the project binds.
-        assert_eq!(parse_effective_pom(text)[0].1[0].goals, ["run"]);
-    }
-
-    #[test]
-    fn a_snapshot_plugin_is_found_by_its_timestamped_jar() {
-        let tmp = tempfile::tempdir().unwrap();
-        let dir = tmp.path().join("g/p/maven-demo-plugin/1.0-SNAPSHOT");
-        std::fs::create_dir_all(&dir).unwrap();
-        let descriptor = "<plugin><mojos><mojo><goal>run</goal></mojo></mojos></plugin>";
-        let file = std::fs::File::create(dir.join("maven-demo-plugin-1.0-20240101.120000-3.jar")).unwrap();
-        let mut zip = zip::ZipWriter::new(file);
-        zip.start_file("META-INF/maven/plugin.xml", zip::write::SimpleFileOptions::default()).unwrap();
-        std::io::Write::write_all(&mut zip, descriptor.as_bytes()).unwrap();
-        zip.finish().unwrap();
-        // A sibling sources jar must not win.
-        std::fs::File::create(dir.join("maven-demo-plugin-1.0-20240101.120000-3-sources.jar")).unwrap();
-        let p = plugin("g.p", "maven-demo-plugin", Some("1.0-SNAPSHOT".into()), &[], Some(tmp.path()));
-        assert_eq!(p.goals, ["run"]);
-    }
-
-    #[test]
-    fn a_plugin_without_its_jar_keeps_the_table_and_the_bound_goals() {
-        let tmp = tempfile::tempdir().unwrap();
-        let p = plugin(
-            "org.apache.maven.plugins",
-            "maven-checkstyle-plugin",
-            Some("3.3.1".into()),
-            &["check".to_owned()],
-            Some(tmp.path()),
-        );
-        assert_eq!(p.goals, ["check"], "nothing beyond what the project binds");
-        let known =
-            plugin("org.apache.maven.plugins", "maven-compiler-plugin", Some("3.13.0".into()), &[], Some(tmp.path()));
-        assert_eq!(known.goals, ["compile", "help", "testCompile"], "the common plugins keep their table");
-    }
-
    fn write(dir: &Path, rel: &str, text: &str) {
        let p = dir.join(rel);
        std::fs::create_dir_all(p.parent().unwrap()).unwrap();
@@ -1550,72 +1276,6 @@ mod tests {
      </profiles>
    </project>"#;

-    #[test]
-    fn maven_4_subprojects_are_modules() {
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path();
-        write(
-            root,
-            "pom.xml",
-            r#"<project xmlns="http://maven.apache.org/POM/4.1.0"><modelVersion>4.1.0</modelVersion>
-              <groupId>demo</groupId><artifactId>parent</artifactId><version>1.0</version><packaging>pom</packaging>
-              <subprojects><subproject>core</subproject></subprojects>
-              <profiles><profile><id>extra</id><subprojects><subproject>extra</subproject></subprojects></profile></profiles>
-            </project>"#,
-        );
-        write(root, "core/pom.xml", "<project><artifactId>core</artifactId></project>");
-        write(root, "extra/pom.xml", "<project><artifactId>extra</artifactId></project>");
-        let model = load_with_repo(root, None);
-        assert_eq!(model.projects[0].modules, ["core/pom.xml"]);
-        assert!(model.projects.iter().any(|p| p.pom == "core/pom.xml" && p.aggregated));
-    }
-
-    #[test]
-    fn modules_inherit_the_compiler_level_of_the_parent_plugin_configuration() {
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path();
-        let parent = |build: &str| {
-            format!(
-                r#"<project><groupId>demo</groupId><artifactId>parent</artifactId><version>1.0</version><packaging>pom</packaging>
-                  <modules><module>core</module><module>app</module></modules>
-                  <properties><jdk>17</jdk></properties>{build}</project>"#
-            )
-        };
-        let child = |name: &str, build: &str| {
-            format!(
-                r#"<project><parent><groupId>demo</groupId><artifactId>parent</artifactId><version>1.0</version></parent>
-                  <artifactId>{name}</artifactId>{build}</project>"#
-            )
-        };
-        let compiler = |level: &str| {
-            format!(
-                "<plugin><artifactId>maven-compiler-plugin</artifactId><configuration><source>{level}</source></configuration></plugin>"
-            )
-        };
-        let versions = |model: &MavenModel| -> Vec<(String, Option<u32>)> {
-            model.projects.iter().map(|p| (p.pom.clone(), p.java_version)).collect()
-        };
-        let app_build = format!("<build><plugins>{}</plugins></build>", compiler("21"));
-        write(root, "core/pom.xml", &child("core", ""));
-        write(root, "app/pom.xml", &child("app", &app_build));
-        for build in [
-            format!("<build><pluginManagement><plugins>{}</plugins></pluginManagement></build>", compiler("${jdk}")),
-            format!("<build><plugins>{}</plugins></build>", compiler("1.8")),
-        ] {
-            write(root, "pom.xml", &parent(&build));
-            let expected = if build.contains("1.8") { 8 } else { 17 };
-            assert_eq!(
-                versions(&load_with_repo(root, None)),
-                [
-                    ("pom.xml".to_owned(), Some(expected)),
-                    ("core/pom.xml".to_owned(), Some(expected)),
-                    ("app/pom.xml".to_owned(), Some(21)),
-                ],
-                "{build}"
-            );
-        }
-    }
-
    #[test]
    fn multi_module_parent_properties_and_managed_versions() {
        let tmp = tempfile::tempdir().unwrap();
@@ -1811,25 +1471,6 @@ mod tests {
        assert!(!is_maven_project(&root.join("c")));
    }

-    #[test]
-    fn aggregate_pom_in_src_is_a_build() {
-        // Issue #1001: `src/pom.xml` aggregating modules under `src/` is recognized,
-        // with its modules loaded — while `src` stays unsearched otherwise.
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path();
-        write(
-            root,
-            "src/pom.xml",
-            "<project><groupId>g</groupId><artifactId>parent</artifactId><packaging>pom</packaging>\
-             <modules><module>app</module></modules></project>",
-        );
-        write(root, "src/app/pom.xml", "<project><groupId>g</groupId><artifactId>app</artifactId></project>");
-        let model = load_with_repo(root, None);
-        let names: Vec<&str> = model.projects.iter().map(|p| p.artifact_id.as_str()).collect();
-        assert_eq!(names, ["parent", "app"]);
-        assert!(is_maven_project(root));
-    }
-
    #[test]
    fn property_interpolation() {
        let props: HashMap<String, String> =
@@ -2027,51 +1668,4 @@ mod linkage_tests {
        UnlinkedProjects::from_model(&original, &MavenSettings::default()).filter(&mut restored);
        assert_eq!(restored, original);
    }
-
-    #[test]
-    fn language_server_imports_reactor_modules_individually_once_one_is_unlinked() {
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path();
-        // r ─┬─ x
-        //    ├─ y ─┬─ y/y1
-        //    │     └─ y/y2
-        //    └─ z          other/ is a separate root.
-        for (dir, modules) in [
-            ("r", "<modules><module>x</module><module>y</module><module>z</module></modules>"),
-            ("r/x", ""),
-            ("r/y", "<modules><module>y1</module><module>y2</module></modules>"),
-            ("r/y/y1", ""),
-            ("r/y/y2", ""),
-            ("r/z", ""),
-            ("other", ""),
-        ] {
-            std::fs::create_dir_all(root.join(dir)).unwrap();
-            std::fs::write(
-                root.join(dir).join("pom.xml"),
-                format!("<project><artifactId>{dir}</artifactId>{modules}</project>"),
-            )
-            .unwrap();
-        }
-        let model = load_with_repo(root, None);
-        let cases: [(&[&str], Option<&[&str]>); 5] = [
-            // Nothing unlinked, or whole roots: the import exclusions do it.
-            (&[], None),
-            (&["other/pom.xml"], None),
-            (&["r/pom.xml"], None),
-            // A module of a linked reactor: every other linked POM, minus the aggregators above it.
-            (&["r/y/y1/pom.xml"], Some(&["other/pom.xml", "r/x/pom.xml", "r/y/y2/pom.xml", "r/z/pom.xml"])),
-            (&["./r/y/pom.xml"], Some(&["other/pom.xml", "r/x/pom.xml", "r/z/pom.xml"])),
-        ];
-        for (unlinked, expected) in cases {
-            let settings = MavenSettings {
-                unlinked_projects: unlinked.iter().map(|s| s.to_string()).collect(),
-                ..Default::default()
-            };
-            let mut poms = UnlinkedProjects::from_model(&model, &settings).import_poms(&model);
-            if let Some(poms) = &mut poms {
-                poms.sort();
-            }
-            assert_eq!(poms, expected.map(|e| e.iter().map(|s| s.to_string()).collect::<Vec<_>>()), "{unlinked:?}");
-        }
-    }
 }
@@ -2,12 +2,11 @@
 //! line to a callback, and cancellation kills the whole process group (the
 //! `mvnw` / `gradlew` wrapper scripts start the JVM as a child).

-use ide_core::process::kill_tree;
 use ide_core::{CancellationToken, IdeError, IdeResult};
 use std::collections::BTreeMap;
 use std::io::{BufRead, BufReader, Read};
 use std::path::Path;
-use std::process::{Command, Stdio};
+use std::process::{Child, Command, Stdio};
 use std::sync::mpsc;
 use std::time::Duration;

@@ -23,6 +22,18 @@ pub(crate) struct Output {
    pub text: String,
 }

+fn kill_tree(child: &mut Child) {
+    #[cfg(unix)]
+    if let Ok(pid) = i32::try_from(child.id()) {
+        // SAFETY: plain syscall; the group was created by `process_group(0)` at spawn.
+        unsafe {
+            libc::kill(-pid, libc::SIGKILL);
+        }
+    }
+    let _ = child.kill();
+    let _ = child.wait();
+}
+
 /// `program` as spawnable: a bare name (`mvn`, `mvn.cmd`) resolves on the IDE's
 /// search path — the login shell's `PATH` plus version-manager shims — since the
 /// app's own `PATH` can be minimal and `Command` would not see `mvn` there.
@@ -69,8 +80,12 @@ pub(crate) fn run_with_env(
    let mut command = Command::new(&program);
    command.args(args).current_dir(cwd).envs(env).envs(encoding.env.iter().map(|(k, v)| (k, v))).stdin(Stdio::null());
    command.stdout(Stdio::piped()).stderr(Stdio::piped());
-    // Its own group: `mvnw` / `gradlew` start the JVM as a child, and cancelling kills both.
-    ide_core::process::prepare(ide_core::process::own_group(&mut command));
+    #[cfg(unix)]
+    {
+        use std::os::unix::process::CommandExt;
+        command.process_group(0);
+    }
+    ide_core::process::prepare(&mut command);
    if clear_env {
        command.env_clear().envs(env).envs(encoding.env);
    }
@@ -4,16 +4,14 @@
 //! per project (`maven.json`, `gradle.json` in the cache directory) and merged
 //! into the static model by [`crate::load`]; a changed build file marks them stale.

-use crate::gradle::{self, GradleModel, GradleTask, ReportedProject, parse_reported_projects};
+use crate::gradle::{self, GradleModel, GradleTask};
 use crate::maven::{self, MavenDependency, MavenModel, MavenPlugin};
 use crate::process::{self, Output};
 use ide_core::{CancellationToken, IdeError, IdeResult};
 use serde::{Deserialize, Serialize, de::DeserializeOwned};
 use specta::Type;
-use std::collections::{BTreeMap, HashMap};
+use std::collections::BTreeMap;
 use std::path::{Path, PathBuf};
-use std::sync::{Arc, LazyLock, Mutex};
-use std::time::SystemTime;

 #[derive(Clone, Debug, Serialize, Deserialize, Type)]
 #[serde(rename_all = "camelCase")]
@@ -50,11 +48,6 @@ struct CachedMavenProject {

 #[derive(Clone, Debug, Default, Serialize, Deserialize)]
 struct MavenCache {
-    /// Bumped whenever what the cache holds stops matching what the model would be
-    /// built as now (plugin goals read from a descriptor, say): an older cache is
-    /// dropped instead of shadowing the model.
-    #[serde(default)]
-    version: u32,
    hash: String,
    at_ms: f64,
    error: Option<String>,
@@ -70,16 +63,9 @@ struct GradleCache {
    at_ms: f64,
    error: Option<String>,
    tasks: Vec<(String, GradleTask)>,
-    /// The projects as Gradle evaluated them; empty in caches from before they were read.
-    #[serde(default)]
-    projects: Vec<ReportedProject>,
 }

-/// Init script printing every project, its source sets and Java version once configured.
-const MODEL_INIT_SCRIPT: &str = include_str!("gradle-model.gradle");
-
 const MAVEN_CACHE: &str = "maven.json";
-const MAVEN_CACHE_VERSION: u32 = 1;

 /// `dependency:tree` of a plugin version whose `-Dverbose` lists the occurrences Maven
 /// omitted (conflicts, duplicates): verbose output was dropped in 3.0 and is back since 3.2.
@@ -96,24 +82,6 @@ fn maven_sync_goals(effective: &Path, offline: bool) -> Vec<String> {
    ]
 }
 const GRADLE_CACHE: &str = "gradle.json";
-const MAVEN_PROFILES: &str = "maven-profiles.json";
-
-/// The Maven profiles (`-P` entries, `!id` deactivates) the project was last synced
-/// with: what the IDE resolves it with besides `mvn` (the Java language server, Build Project).
-pub fn maven_profiles(cache_dir: &Path) -> Vec<String> {
-    read_cache(cache_dir, MAVEN_PROFILES).unwrap_or_default()
-}
-
-/// Records the profiles of a sync for [`maven_profiles`]; `true` when they changed.
-pub fn save_maven_profiles(cache_dir: &Path, profiles: &[String]) -> IdeResult<bool> {
-    if maven_profiles(cache_dir) == profiles {
-        return Ok(false);
-    }
-    std::fs::create_dir_all(cache_dir)?;
-    let json = serde_json::to_vec(profiles).map_err(|e| IdeError::internal(e.to_string()))?;
-    std::fs::write(cache_dir.join(MAVEN_PROFILES), json)?;
-    Ok(true)
-}

 fn read_cache<T: DeserializeOwned>(dir: &Path, name: &str) -> Option<T> {
    serde_json::from_slice(&std::fs::read(dir.join(name)).ok()?).ok()
@@ -130,20 +98,6 @@ fn write_cache<T: Serialize>(dir: &Path, name: &str, value: &T) -> IdeResult<()>

 /// FNV-1a over the paths and contents of `files` (missing files count as empty).
 fn hash_files(files: &[PathBuf]) -> String {
-    hash_contents(files, |f| std::fs::read(f).unwrap_or_default())
-}
-
-/// Like IDEA's auto-import CRC: editing a comment or reformatting a build script
-/// does not make the last sync stale.
-fn hash_gradle_files(files: &[PathBuf]) -> String {
-    hash_contents(files, |f| {
-        let text = std::fs::read_to_string(f).unwrap_or_default();
-        let script = f.extension().is_some_and(|e| e == "gradle" || e == "kts");
-        if script { gradle::script_fingerprint(&text) } else { text }.into_bytes()
-    })
-}
-
-fn hash_contents(files: &[PathBuf], read: impl Fn(&Path) -> Vec<u8>) -> String {
    let mut h: u64 = 0xcbf29ce484222325;
    let mut feed = |bytes: &[u8]| {
        for b in bytes {
@@ -154,7 +108,7 @@ fn hash_contents(files: &[PathBuf], read: impl Fn(&Path) -> Vec<u8>) -> String {
    for f in files {
        feed(f.to_string_lossy().as_bytes());
        feed(&[0]);
-        feed(&read(f));
+        feed(&std::fs::read(f).unwrap_or_default());
        feed(&[0]);
    }
    format!("{h:016x}")
@@ -167,9 +121,6 @@ fn now_ms() -> f64 {
 /// Merges the cached effective build into `model`.
 pub fn apply_maven_cache(root: &Path, cache_dir: &Path, model: &mut MavenModel) {
    let Some(cache) = read_cache::<MavenCache>(cache_dir, MAVEN_CACHE) else { return };
-    if cache.version != MAVEN_CACHE_VERSION {
-        return; // built by an older IDE: what it holds no longer matches the model
-    }
    model.synced_at = Some(cache.at_ms);
    model.sync_error = cache.error;
    let changed = cache.hash != hash_files(&maven::build_files(root, model));
@@ -190,33 +141,9 @@ pub fn apply_maven_cache(root: &Path, cache_dir: &Path, model: &mut MavenModel)
    }
 }

-/// The projects of the last successful Gradle sync.
-/// Parsed once per change of the cache file (modification time and size): content and source
-/// roots are read on hot paths (every references search, Find in Files, repository scans).
-pub fn reported_gradle_projects(cache_dir: &Path) -> Arc<Vec<ReportedProject>> {
-    type Memo = HashMap<PathBuf, (Option<SystemTime>, u64, Arc<Vec<ReportedProject>>)>;
-    static MEMO: LazyLock<Mutex<Memo>> = LazyLock::new(Default::default);
-    let path = cache_dir.join(GRADLE_CACHE);
-    let Ok(meta) = std::fs::metadata(&path) else {
-        MEMO.lock().unwrap_or_else(|e| e.into_inner()).remove(&path);
-        return Arc::default();
-    };
-    let stamp = (meta.modified().ok(), meta.len());
-    let mut memo = MEMO.lock().unwrap_or_else(|e| e.into_inner());
-    if let Some((modified, len, projects)) = memo.get(&path)
-        && (*modified, *len) == stamp
-    {
-        return projects.clone();
-    }
-    let projects = Arc::new(read_cache::<GradleCache>(cache_dir, GRADLE_CACHE).map(|c| c.projects).unwrap_or_default());
-    memo.insert(path, (stamp.0, stamp.1, projects.clone()));
-    projects
-}
-
 /// Merges the cached task list into `model`.
 pub fn apply_gradle_cache(root: &Path, cache_dir: &Path, model: &mut GradleModel) {
    let Some(cache) = read_cache::<GradleCache>(cache_dir, GRADLE_CACHE) else { return };
-    gradle::merge_reported_projects(root, model, &cache.projects);
    if !cache.tasks.is_empty() {
        for p in &mut model.projects {
            let tasks: Vec<GradleTask> =
@@ -226,11 +153,9 @@ pub fn apply_gradle_cache(root: &Path, cache_dir: &Path, model: &mut GradleModel
            }
        }
    }
-    // A successful sync from before projects were cached has not seen computed includes.
-    let without_projects = cache.error.is_none() && cache.projects.is_empty();
    model.synced_at = Some(cache.at_ms);
    model.sync_error = cache.error;
-    model.stale = without_projects || cache.hash != hash_gradle_files(&gradle::build_files(root, model));
+    model.stale = cache.hash != hash_files(&gradle::build_files(root, model));
 }

 // ---------------------------------------------------------------- processes
@@ -286,31 +211,8 @@ pub fn sync_maven(
    let mut model = maven::load(root);
    maven::UnlinkedProjects::from_model(&model, &options.maven_settings).filter(&mut model);
    std::fs::create_dir_all(cache_dir)?;
-    let mut cache = MavenCache {
-        version: MAVEN_CACHE_VERSION,
-        hash: hash_files(&maven::build_files(root, &model)),
-        verbose: true,
-        ..MavenCache::default()
-    };
-    // Where the build resolves its jars, and therefore where the plugin goals are read
-    // from: `-Dmaven.repo.local=` first, then `<localRepository>` of the `-s` settings,
-    // then the user's default repository (which `plugin()` resolves itself).
-    let local_repo: Option<PathBuf> =
-        options.maven_options.iter().find_map(|a| a.strip_prefix("-Dmaven.repo.local=")).map(PathBuf::from).or_else(
-            || {
-                let mut args = options.maven_options.iter();
-                while let Some(arg) = args.next() {
-                    let path = match arg.as_str() {
-                        "-s" | "--settings" => args.next().map(String::as_str),
-                        _ => arg.strip_prefix("-s=").or_else(|| arg.strip_prefix("--settings=")),
-                    };
-                    if let Some(path) = path {
-                        return maven::local_repository_of(Path::new(path));
-                    }
-                }
-                None
-            },
-        );
+    let mut cache =
+        MavenCache { hash: hash_files(&maven::build_files(root, &model)), verbose: true, ..MavenCache::default() };
    let mut errors: Vec<String> = Vec::new();
    for (n, top) in model.projects.iter().filter(|p| !p.aggregated).enumerate() {
        let effective = cache_dir.join(format!("effective-pom-{n}.xml"));
@@ -339,9 +241,8 @@ pub fn sync_maven(
                });
            }
        })?;
-        let effective_projects = std::fs::read_to_string(&effective)
-            .map(|t| maven::parse_effective_pom_in(&t, local_repo.as_deref()))
-            .unwrap_or_default();
+        let effective_projects =
+            std::fs::read_to_string(&effective).map(|t| maven::parse_effective_pom(&t)).unwrap_or_default();
        let trees = maven::parse_dependency_tree(&out.text);
        for (key, plugins, deps) in effective_projects {
            let dependencies = trees.iter().find(|(k, _)| *k == key).map(|(_, t)| t.clone()).unwrap_or(deps);
@@ -370,18 +271,8 @@ pub fn sync_gradle(
    cancel: &CancellationToken,
    progress: &dyn Fn(SyncProgress),
 ) -> IdeResult<()> {
-    let mut model = gradle::load(root).ok_or_else(|| IdeError::not_found("no Gradle build in this project"))?;
-    std::fs::create_dir_all(cache_dir)?;
-    let init_script = cache_dir.join("openidea-model.gradle");
-    std::fs::write(&init_script, MODEL_INIT_SCRIPT)?;
-    let mut args: Vec<String> = vec![
-        "--console=plain".into(),
-        "-q".into(),
-        "--init-script".into(),
-        init_script.to_string_lossy().into_owned(),
-        "tasks".into(),
-        "--all".into(),
-    ];
+    let model = gradle::load(root).ok_or_else(|| IdeError::not_found("no Gradle build in this project"))?;
+    let mut args: Vec<String> = vec!["--console=plain".into(), "-q".into(), "tasks".into(), "--all".into()];
    if options.offline {
        args.push("--offline".into());
    }
@@ -394,15 +285,11 @@ pub fn sync_gradle(
        cancel,
        |_| {},
    )?;
-    let projects = if out.success { parse_reported_projects(&out.text) } else { Vec::new() };
-    // Hash the build files of the reported projects, or the model is stale right after the sync.
-    gradle::merge_reported_projects(root, &mut model, &projects);
    let cache = GradleCache {
-        hash: hash_gradle_files(&gradle::build_files(root, &model)),
+        hash: hash_files(&gradle::build_files(root, &model)),
        at_ms: now_ms(),
        error: (!out.success).then(|| error_summary(&out.text)),
        tasks: if out.success { gradle::parse_tasks(&out.text) } else { Vec::new() },
-        projects,
    };
    write_cache(cache_dir, GRADLE_CACHE, &cache)
 }
@@ -445,7 +332,6 @@ mod tests {
        let mut model = maven::load_with_repo(&root, None);
        assert!(model.synced_at.is_none());
        let cache = MavenCache {
-            version: MAVEN_CACHE_VERSION,
            hash: hash_files(&maven::build_files(&root, &model)),
            at_ms: 5.0,
            error: None,
@@ -457,7 +343,6 @@ mod tests {
                    "maven-clean-plugin",
                    Some("3.2.0".into()),
                    &[],
-                    None,
                )],
                dependencies: vec![MavenDependency { artifact_id: "dep".into(), ..MavenDependency::default() }],
            }],
@@ -483,128 +368,6 @@ mod tests {
        assert_eq!(model.projects[0].dependencies[0].artifact_id, "fresh");
    }

-    #[test]
-    fn a_cache_from_an_older_ide_is_ignored() {
-        let tmp = tempfile::tempdir().unwrap();
-        let root = tmp.path().join("p");
-        let cache_dir = tmp.path().join("cache");
-        std::fs::create_dir_all(&root).unwrap();
-        std::fs::write(root.join("pom.xml"), "<project><groupId>g</groupId><artifactId>a</artifactId></project>")
-            .unwrap();
-        let mut model = maven::load_with_repo(&root, None);
-        let cache = MavenCache {
-            // What an older build wrote: no plugin descriptors were read back then, so
-            // its goal lists would shadow the ones the model now knows.
-            version: 0,
-            hash: hash_files(&maven::build_files(&root, &model)),
-            at_ms: 5.0,
-            error: None,
-            verbose: true,
-            projects: vec![CachedMavenProject {
-                key: "g:a".into(),
-                plugins: vec![maven::plugin(
-                    "org.apache.maven.plugins",
-                    "maven-clean-plugin",
-                    Some("3.2.0".into()),
-                    &[],
-                    None,
-                )],
-                dependencies: vec![MavenDependency { artifact_id: "cached".into(), ..MavenDependency::default() }],
-            }],
-        };
-        write_cache(&cache_dir, MAVEN_CACHE, &cache).unwrap();
-        apply_maven_cache(&root, &cache_dir, &mut model);
-        assert!(model.synced_at.is_none(), "the cache is dropped, the model stays unsynced");
-        assert!(model.projects[0].dependencies.iter().all(|d| d.artifact_id != "cached"));
-    }
-
-    #[test]
-    fn gradle_reported_projects_replace_static_ones() {
-        let tmp = tempfile::tempdir().unwrap();
-        let ws = dunce::canonicalize(tmp.path()).unwrap();
-        let root = ws.join("app");
-        let billing = ws.join("billing");
-        std::fs::create_dir_all(root.join("shared")).unwrap();
-        std::fs::create_dir_all(billing.join("modules/core")).unwrap();
-        // Computed includes: nothing a static reading can see.
-        std::fs::write(root.join("settings.gradle"), "rootProject.name = 'Shop'\n['billing'].each { includeFlat it }")
-            .unwrap();
-        std::fs::write(billing.join("modules/core/build.gradle"), "apply plugin: 'java'").unwrap();
-        // Built with serde: a Windows path holds backslashes, which raw JSON text would leave unescaped.
-        let line = |p: ReportedProject| format!("@openidea-model\t{}\n", serde_json::to_string(&p).unwrap());
-        let (r, b) = (root.display().to_string(), billing.display().to_string());
-        let core_src = |p: &str| format!("{b}/modules/core/src/{p}");
-        let set = |name: &str, test: bool, src: &[&str], res: &[&str]| gradle::ReportedSourceSet {
-            name: name.into(),
-            test,
-            src: src.iter().map(|p| core_src(p)).collect(),
-            res: res.iter().map(|p| core_src(p)).collect(),
-        };
-        // A settings script's own println comes first; task listing lines follow.
-        let out = format!(
-            "configuring billing\n{}{}{}@openidea-model\t{{broken\n\nOther tasks\n-----------\nbilling:core:jar\n",
-            line(ReportedProject { path: ":".into(), dir: r.clone(), ..ReportedProject::default() }),
-            line(ReportedProject {
-                path: ":billing".into(),
-                dir: b.clone(),
-                java: Some(17),
-                ..ReportedProject::default()
-            }),
-            line(ReportedProject {
-                path: ":billing:core".into(),
-                dir: format!("{b}/modules/core"),
-                java: Some(21),
-                source_sets: vec![
-                    set("main", false, &["main/java"], &["main/resources"]),
-                    set("test", true, &["main/java", "test/java"], &[]),
-                ],
-                ..ReportedProject::default()
-            }),
-        );
-        let projects = parse_reported_projects(&out);
-        assert_eq!(projects.len(), 3, "the malformed line is skipped");
-        let src = |p: &str| PathBuf::from(core_src(p));
-        assert_eq!(
-            gradle::reported_source_roots(&projects),
-            [
-                (src("main/java"), gradle::ReportedRoot::Source),
-                (src("main/resources"), gradle::ReportedRoot::Resources),
-                (src("test/java"), gradle::ReportedRoot::Test),
-            ]
-        );
-        let mut model = gradle::load(&root).unwrap();
-        assert_eq!(model.projects.len(), 1);
-        gradle::merge_reported_projects(&root, &mut model, &projects);
-        let paths: Vec<_> = model.projects.iter().map(|p| (p.path.as_str(), p.name.as_str())).collect();
-        assert_eq!(paths, [(":", "Shop"), (":billing", "billing"), (":billing:core", "core")]);
-        assert_eq!(model.projects[0].dir, "");
-        assert!(root.join(model.projects[2].build_file.as_ref().unwrap()).is_file());
-        assert_eq!(
-            gradle::external_roots(&root, model.projects.iter().map(|p| p.dir.as_str())),
-            std::slice::from_ref(&billing)
-        );
-        assert_eq!(model.java_version, Some(21), "the newest version any module needs");
-        assert_eq!(
-            gradle::parse_tasks(&out),
-            [(":billing:core".into(), GradleTask { name: "jar".into(), group: "other".into(), description: None })]
-        );
-
-        // The cached projects are parsed once per change of the cache file.
-        let cache_dir = ws.join("cache");
-        let write = |projects: &[ReportedProject]| {
-            let cache = GradleCache { projects: projects.to_vec(), ..GradleCache::default() };
-            write_cache(&cache_dir, GRADLE_CACHE, &cache).unwrap();
-        };
-        write(&projects);
-        let first = reported_gradle_projects(&cache_dir);
-        assert!(Arc::ptr_eq(&first, &reported_gradle_projects(&cache_dir)), "unchanged: not parsed again");
-        assert_eq!(crate::gradle_external_roots(&root, &cache_dir), [billing]);
-        write(&projects[..1]);
-        assert_eq!(reported_gradle_projects(&cache_dir).len(), 1, "a new sync is read");
-        std::fs::remove_file(cache_dir.join(GRADLE_CACHE)).unwrap();
-        assert!(reported_gradle_projects(&cache_dir).is_empty());
-    }
-
    #[test]
    fn gradle_cache_replaces_tasks_per_project() {
        let tmp = tempfile::tempdir().unwrap();
@@ -615,39 +378,16 @@ mod tests {
        std::fs::write(root.join("app/build.gradle"), "apply plugin: 'java'").unwrap();
        let mut model = gradle::load(&root).unwrap();
        let cache = GradleCache {
-            hash: hash_gradle_files(&gradle::build_files(&root, &model)),
+            hash: hash_files(&gradle::build_files(&root, &model)),
            at_ms: 1.0,
            error: None,
            tasks: vec![(":app".into(), GradleTask { name: "hello".into(), group: "demo".into(), description: None })],
-            projects: [":", ":app"]
-                .iter()
-                .zip([root.clone(), root.join("app")])
-                .map(|(path, dir)| ReportedProject {
-                    path: (*path).into(),
-                    dir: dir.to_string_lossy().into_owned(),
-                    ..Default::default()
-                })
-                .collect(),
        };
        write_cache(&cache_dir, GRADLE_CACHE, &cache).unwrap();
        apply_gradle_cache(&root, &cache_dir, &mut model);
        assert_eq!(model.projects[1].tasks.len(), 1);
        assert!(model.projects[0].tasks.iter().any(|t| t.name == "wrapper"), "root keeps its defaults");
        assert!(!model.stale);
-
-        let stale_after = |script: &str| {
-            std::fs::write(root.join("app/build.gradle"), script).unwrap();
-            let mut m = gradle::load(&root).unwrap();
-            apply_gradle_cache(&root, &cache_dir, &mut m);
-            m.stale
-        };
-        assert!(!stale_after("// a note\napply   plugin: 'java'\n"), "comments and spacing don't count");
-        assert!(stale_after("apply plugin: 'groovy'"));
-        std::fs::write(root.join("app/build.gradle"), "apply plugin: 'java'").unwrap();
-        std::fs::write(root.join("gradle.properties"), "org.gradle.jvmargs=-Xmx2g").unwrap();
-        let mut m = gradle::load(&root).unwrap();
-        apply_gradle_cache(&root, &cache_dir, &mut m);
-        assert!(m.stale, "gradle.properties is watched");
    }

    #[test]
@@ -18,8 +18,5 @@ tokio-util.workspace = true
 [dev-dependencies]
 tempfile.workspace = true

-[target.'cfg(unix)'.dependencies]
-libc = "0.2"
-
 [target.'cfg(windows)'.dependencies]
-windows-sys = { version = "0.61", features = ["Win32_Globalization", "Win32_Security", "Win32_System_Registry", "Win32_Foundation"] }
+windows-sys = { version = "0.61", features = ["Win32_Globalization", "Win32_System_Registry", "Win32_Foundation"] }
@@ -36,21 +36,12 @@ pub enum IdeEvent {
        base_version: u32,
        version: u32,
        changes: Vec<TextChange>,
-        /// Part of a grouped transaction; the editor must not record a file-local undo.
-        #[serde(default)]
-        #[specta(optional)]
-        workspace_edit: bool,
    },
    /// A document's dirty flag changed (saved / modified externally).
    DocDirty {
        doc: DocId,
        dirty: bool,
    },
-    /// A complete workspace edit can be undone as one operation.
-    WorkspaceEditApplied {
-        id: u32,
-        paths: Vec<crate::IpcPath>,
-    },
    /// An open document's language changed (Settings › File Types, Override File
    /// Type), or its UI mode (a framework's root marker appeared or went).
    DocLanguage {
@@ -91,12 +82,6 @@ pub enum IdeEvent {
        status: ServerStatus,
        message: Option<String>,
    },
-    /// A running server lacks a capability; the UI offers the managed tool as a replacement.
-    LanguageServerWarning {
-        name: String,
-        message: String,
-        install_tool: String,
-    },
    /// A stopped language server left the project's list (disabled in settings, or a
    /// fallback that a preferred server took over from again).
    LanguageServerRemoved {
@@ -1,25 +0,0 @@
-//! Capabilities needed by the JVM hosting Java language-server bundles.
-
-use std::path::Path;
-
-/// jdtls' javac bundle, java-debug / hot code replace, and Lombok / Gradle tooling.
-const BUNDLE_MODULES: &[&str] = &["jdk.compiler", "jdk.jdi", "jdk.unsupported"];
-
-/// Require a full JDK, including the modules used by jdtls and its bundles.
-/// Temurin JREs can list the build JDK's modules in `release` even when the runtime
-/// image omits them, so module metadata alone does not establish suitability.
-pub fn supports_java_bundles(home: &Path) -> bool {
-    let Ok(release) = std::fs::read_to_string(home.join("release")) else { return false };
-    let property =
-        |key: &str| release.lines().find_map(|line| line.trim().strip_prefix(key)).map(|v| v.trim().trim_matches('"'));
-    let javac = if cfg!(windows) { "javac.exe" } else { "javac" };
-    if property("IMAGE_TYPE=").is_some_and(|image| image.eq_ignore_ascii_case("jre"))
-        || !home.join("bin").join(javac).is_file()
-    {
-        return false;
-    }
-    match property("MODULES=") {
-        Some(modules) => BUNDLE_MODULES.iter().all(|required| modules.split_whitespace().any(|m| m == *required)),
-        None => BUNDLE_MODULES.iter().all(|m| home.join("jmods").join(format!("{m}.jmod")).is_file()),
-    }
-}
@@ -11,7 +11,6 @@ pub mod ids;
 pub mod ignored;
 pub mod inspection_settings;
 pub mod ipc_path;
-pub mod java_runtime;
 pub mod jsonc;
 pub mod output_encoding;
 pub mod process;
@@ -13,10 +13,7 @@
 //!   they fork get them too (`spring-boot:run`, Surefire, `bootRun`, test workers).
 //!   Each JVM then reports "Picked up JAVA_TOOL_OPTIONS: …" on stderr (which a build tool
 //!   may copy to its stdout); that line is hidden again ([`NoticeFilter`]). `file.encoding` is left alone there: it would change
-//!   how a build reads sources that declare no encoding. The application JVMs a build
-//!   forks get `file.encoding=UTF-8` for a UTF-8 console instead, through the build's own
-//!   options: `-Dspring-boot.run.jvmArguments` for Maven `spring-boot:run`, an init script
-//!   ([`GRADLE_FILE_ENCODING_SCRIPT`]) for Gradle `JavaExec` tasks (`bootRun`, `run`).
+//!   how a build reads sources that declare no encoding.
 //! - Python: `PYTHONIOENCODING`.

 use std::collections::BTreeMap;
@@ -78,34 +75,16 @@ fn encoding_for_code_page(cp: u32) -> Option<&'static encoding_rs::Encoding> {
 const STD_PROPERTIES: &[&str] = &["stdout.encoding", "stderr.encoding", "sun.stdout.encoding", "sun.stderr.encoding"];
 const FILE_ENCODING: &str = "file.encoding";
 const TOOL_OPTIONS: &str = "JAVA_TOOL_OPTIONS";
-const SPRING_BOOT_JVM_ARGS: &str = "-Dspring-boot.run.jvmArguments=";

 /// Build tools and launcher scripts that run on (and may fork) JVMs.
-const JVM_TOOLS: &[&str] = &["sbt", "ant", "kotlin", "kotlinc", "groovy", "scala", "jbang"];
-const MAVEN: &[&str] = &["mvn", "mvnw", "mvnd"];
-const GRADLE: &[&str] = &["gradle", "gradlew"];
-
-/// Gradle init script giving the `JavaExec` tasks (`bootRun`, `run`, custom ones) a UTF-8
-/// default charset before the build configures them, so the build can override it.
-/// Gradle's own JVM and the compiler's source encoding are untouched.
-pub const GRADLE_FILE_ENCODING_SCRIPT: &str = "\
-// Written by OpenIDEA: a UTF-8 default charset for applications run by Gradle, as the Run console decodes UTF-8.
-allprojects {
-    tasks.withType(JavaExec).configureEach {
-        defaultCharacterEncoding = 'UTF-8'
-    }
-}
-";
+const JVM_TOOLS: &[&str] =
+    &["mvn", "mvnw", "mvnd", "gradle", "gradlew", "sbt", "ant", "kotlin", "kotlinc", "groovy", "scala", "jbang"];

 /// What a launch needs: `-D` options to put first on a `java` command line,
 /// environment variables to set, and the notice line its JVMs print because of them.
 #[derive(Debug, Default, PartialEq, Eq)]
 pub struct EncodingFix {
    pub java_args: Vec<String>,
-    /// The build tool's arguments, rewritten to pass options to the JVM it forks.
-    pub args: Option<Vec<String>>,
-    /// Gradle: pass [`GRADLE_FILE_ENCODING_SCRIPT`] with `--init-script`.
-    pub gradle_init_script: bool,
    pub env: Vec<(String, String)>,
    /// "Picked up JAVA_TOOL_OPTIONS: …" for a variable set here alone, to drop from the output.
    pub notice: Option<String>,
@@ -137,8 +116,6 @@ fn options(properties: &[&str], encoding: &str) -> Vec<String> {
 #[derive(Clone, Copy, PartialEq, Eq)]
 enum Kind {
    Java,
-    Maven,
-    Gradle,
    JvmTool,
    Python,
    Other,
@@ -148,10 +125,6 @@ fn kind(program: &str) -> Kind {
    let name = program_name(program);
    if name == "java" || name == "javaw" {
        Kind::Java
-    } else if MAVEN.contains(&name.as_str()) {
-        Kind::Maven
-    } else if GRADLE.contains(&name.as_str()) {
-        Kind::Gradle
    } else if JVM_TOOLS.contains(&name.as_str()) {
        Kind::JvmTool
    } else if is_python(&name) {
@@ -220,17 +193,7 @@ fn fix_kind(
                out.java_args.push(format!("-D{FILE_ENCODING}=UTF-8"));
            }
        }
-        (Kind::Java | Kind::Maven | Kind::Gradle | Kind::JvmTool, _) => {
-            if let Some(args) = args
-                && is_utf8(encoding)
-                && !sets(&tool_options, &[FILE_ENCODING])
-            {
-                match kind {
-                    Kind::Maven => out.args = spring_boot_file_encoding(args),
-                    Kind::Gradle => out.gradle_init_script = true,
-                    _ => {}
-                }
-            }
+        (Kind::Java | Kind::JvmTool, _) => {
            if !sets(&tool_options, STD_PROPERTIES) {
                let added = options(STD_PROPERTIES, encoding).join(" ");
                let value = match tool_options.trim() {
@@ -251,42 +214,14 @@ fn fix_kind(
    out
 }

-fn spring_boot_file_encoding(args: &[String]) -> Option<Vec<String>> {
-    if !args.iter().any(|a| a == "spring-boot:run" || (a.contains(":spring-boot-maven-plugin:") && a.ends_with(":run")))
-    {
-        return None;
-    }
-    let option = format!("-D{FILE_ENCODING}=UTF-8");
-    let mut out = args.to_vec();
-    match out.iter_mut().rfind(|a| a.starts_with(SPRING_BOOT_JVM_ARGS)) {
-        Some(own) if sets(own, &[FILE_ENCODING]) => return None,
-        Some(own) => {
-            if own.len() > SPRING_BOOT_JVM_ARGS.len() {
-                own.push(' ');
-            }
-            own.push_str(&option);
-        }
-        None => out.push(format!("{SPRING_BOOT_JVM_ARGS}{option}")),
-    }
-    Some(out)
-}
-
 /// `vmArgs` of a launch by java-debug, which decodes the JVM's output as `encoding`
-/// (its launch attribute, UTF-8 when unset). java-debug sets `file.encoding` only
-/// when that attribute is nonblank; use the same defaults and user overrides as [`fix`].
-pub fn java_debug_vm_args(
-    vm_args: &str,
-    vars: &BTreeMap<String, String>,
-    inherited: impl Fn(&str) -> Option<String>,
-    encoding: Option<&str>,
-    windows: bool,
-) -> Option<String> {
+/// (its launch attribute, UTF-8 when unset) and sets `file.encoding` itself.
+pub fn java_debug_vm_args(vm_args: &str, encoding: Option<&str>, windows: bool) -> Option<String> {
    let encoding = encoding.map(str::trim).filter(|e| !e.is_empty()).unwrap_or("UTF-8");
-    let added = fix_kind(Kind::Java, Some(&[vm_args.to_owned()]), vars, inherited, encoding, windows).java_args;
-    if added.is_empty() {
+    if (!windows && is_utf8(encoding)) || sets(vm_args, STD_PROPERTIES) {
        return None;
    }
-    let added = added.join(" ");
+    let added = options(STD_PROPERTIES, encoding).join(" ");
    Some(match vm_args.trim() {
        "" => added,
        own => format!("{own} {added}"),
@@ -492,64 +427,6 @@ mod tests {
        assert_eq!(run("python3", &[], &[], "GBK", false).env, [("PYTHONIOENCODING".to_owned(), "GBK".to_owned())]);
    }

-    #[test]
-    fn spring_boot_run_forks_get_a_utf8_default_charset() {
-        let boot = |args: &[&str], env: &[(&str, &str)]| run("mvn.cmd", args, env, "UTF-8", true).args;
-        let utf8 = "-Dspring-boot.run.jvmArguments=-Dfile.encoding=UTF-8";
-        assert_eq!(boot(&["spring-boot:run"], &[]).unwrap(), ["spring-boot:run", utf8]);
-        let plugin = "org.springframework.boot:spring-boot-maven-plugin:3.2.0:run";
-        assert_eq!(boot(&["-pl", "app", plugin], &[]).unwrap(), ["-pl", "app", plugin, utf8]);
-        // The user's VM options are kept; their own `file.encoding` wins.
-        assert_eq!(
-            boot(&["spring-boot:run", "-Dspring-boot.run.jvmArguments=-Xmx1g \"-Da=b c\""], &[]).unwrap(),
-            ["spring-boot:run", "-Dspring-boot.run.jvmArguments=-Xmx1g \"-Da=b c\" -Dfile.encoding=UTF-8"]
-        );
-        assert_eq!(boot(&["spring-boot:run", "-Dspring-boot.run.jvmArguments="], &[]).unwrap()[1], utf8);
-        assert!(boot(&["spring-boot:run", "-Dspring-boot.run.jvmArguments=-Dfile.encoding=GBK"], &[]).is_none());
-        assert!(boot(&["spring-boot:run"], &[(TOOL_OPTIONS, "-Dfile.encoding=GBK")]).is_none());
-        // Other goals and tools, other consoles, and other platforms are left alone.
-        assert!(boot(&["package"], &[]).is_none());
-        assert!(run("mvn", &["spring-boot:run"], &[], "GBK", true).args.is_none());
-        assert!(run("mvn", &["spring-boot:run"], &[], "UTF-8", false).args.is_none());
-    }
-
-    #[test]
-    fn forked_application_jvms_get_a_utf8_default_charset() {
-        // Reported: a Spring Boot app run by the build on Chinese Windows (JDK 8–17, GBK default).
-        for (tool, args) in [
-            ("C:\\p\\gradlew.bat", &["bootRun"][..]),
-            ("gradle", &[":app:run"]),
-            ("mvnw.cmd", &["spring-boot:run"]),
-            ("mvnd", &["org.springframework.boot:spring-boot-maven-plugin:2.7.18:run"]),
-        ] {
-            let f = run(tool, args, &[], "UTF-8", true);
-            let gradle = tool.contains("gradle");
-            assert_eq!(f.gradle_init_script, gradle, "{tool}");
-            assert_eq!(f.args.is_some(), !gradle, "{tool}");
-            // The build tool's own JVM keeps its default charset.
-            assert!(!tool_env(&f).unwrap().contains("file.encoding"), "{tool}");
-            // The user's choice, a GBK console and other platforms are left alone.
-            let own = run(tool, args, &[(TOOL_OPTIONS, "-Dfile.encoding=GBK")], "UTF-8", true);
-            assert!(!own.gradle_init_script && own.args.is_none(), "{tool}");
-            let gbk = run(tool, args, &[], "GBK", true);
-            assert!(!gbk.gradle_init_script && gbk.args.is_none(), "{tool}");
-            assert_eq!(run(tool, args, &[], "UTF-8", false), EncodingFix::default(), "{tool}");
-        }
-        // Shell command lines can't take arguments; other JVM tools fork no application.
-        assert!(!fix_command_line("gradlew bootRun", &BTreeMap::new(), |_| None, "UTF-8", true).gradle_init_script);
-        let sbt = run("sbt", &["run"], &[], "UTF-8", true);
-        assert!(!sbt.gradle_init_script && sbt.args.is_none());
-    }
-
-    #[test]
-    fn gradle_script_respects_the_builds_own_file_encoding() {
-        let s = GRADLE_FILE_ENCODING_SCRIPT;
-        assert!(s.contains("tasks.withType(JavaExec).configureEach"), "{s}");
-        assert!(s.contains("defaultCharacterEncoding = 'UTF-8'"), "{s}");
-        assert!(!s.contains("doFirst"), "the build must be able to override the default: {s}");
-        assert!(!s.contains("withType(Test)") && !s.contains("JavaCompile"), "{s}");
-    }
-
    #[test]
    fn shell_command_lines_get_variables_from_their_first_word() {
        let line = |l: &str| fix_command_line(l, &BTreeMap::new(), |_| None, "UTF-8", true);
@@ -569,53 +446,12 @@ mod tests {

    #[test]
    fn java_debug_launches_write_what_java_debug_decodes() {
-        let debug =
-            |args: &str, encoding, windows| java_debug_vm_args(args, &BTreeMap::new(), |_| None, encoding, windows);
-        for encoding in [None, Some(""), Some("  "), Some("UTF-8"), Some("utf8")] {
-            let streams = encoding.filter(|e| !e.trim().is_empty()).unwrap_or("UTF-8");
-            let utf8 = format!("{} -Dfile.encoding=UTF-8", options(STD_PROPERTIES, streams).join(" "));
-            assert_eq!(debug("", encoding, true), Some(utf8.clone()));
-            assert_eq!(debug("-Xmx1g", encoding, true), Some(format!("-Xmx1g {utf8}")));
-            assert_eq!(debug("-Xmx1g", encoding, false), None);
-        }
-        for windows in [true, false] {
-            assert_eq!(debug("", Some("GBK"), windows), Some(options(STD_PROPERTIES, "GBK").join(" ")));
-        }
-    }
-
-    #[test]
-    fn java_debug_preserves_user_options_independently() {
-        let debug = |args: &str| java_debug_vm_args(args, &BTreeMap::new(), |_| None, None, true);
-        assert_eq!(debug("-Dfile.encoding=GBK"), Some(format!("-Dfile.encoding=GBK {TOOL_UTF8}")));
-        for property in STD_PROPERTIES {
-            let args = format!("-D{property}=GBK");
-            assert_eq!(debug(&args), Some(format!("{args} -Dfile.encoding=UTF-8")));
-            assert_eq!(debug(&format!("{args} -Dfile.encoding=GBK")), None);
-        }
-        for key in ["JDK_JAVA_OPTIONS", TOOL_OPTIONS] {
-            for (own, expected) in [
-                ("-Dfile.encoding=GBK", Some(TOOL_UTF8.to_owned())),
-                ("-Dstdout.encoding=GBK", Some("-Dfile.encoding=UTF-8".to_owned())),
-                ("-Dstdout.encoding=GBK -Dfile.encoding=GBK", None),
-            ] {
-                assert_eq!(java_debug_vm_args("", &vars(&[(key, own)]), |_| None, None, true), expected);
-                assert_eq!(
-                    java_debug_vm_args("", &BTreeMap::new(), |k| (k == key).then(|| own.to_owned()), None, true),
-                    expected
-                );
-            }
-            // A launch environment value overrides the inherited one, as in Run.
-            assert_eq!(
-                java_debug_vm_args(
-                    "",
-                    &vars(&[(key, "")]),
-                    |k| (k == key).then(|| "-Dfile.encoding=GBK".into()),
-                    None,
-                    true
-                ),
-                Some(format!("{TOOL_UTF8} -Dfile.encoding=UTF-8"))
-            );
-        }
+        assert_eq!(java_debug_vm_args("", None, true).as_deref(), Some(TOOL_UTF8));
+        assert_eq!(java_debug_vm_args("-Xmx1g", Some(""), true), Some(format!("-Xmx1g {TOOL_UTF8}")));
+        assert_eq!(java_debug_vm_args("", Some("GBK"), true).unwrap().split(' ').next(), Some("-Dstdout.encoding=GBK"));
+        assert_eq!(java_debug_vm_args("-Dstdout.encoding=GBK", None, true), None);
+        assert_eq!(java_debug_vm_args("-Xmx1g", None, false), None);
+        assert!(java_debug_vm_args("", Some("GBK"), false).is_some());
    }

    fn filtered(chunks: &[&str]) -> String {
@@ -1,11 +1,8 @@
 //! Child-process helpers shared by every crate that spawns tools.

 use std::ffi::{OsStr, OsString};
-#[cfg(windows)]
-use std::process::Stdio;
-use std::process::{Child, Command};
+use std::process::Command;
 use std::sync::{Arc, RwLock};
-use std::time::Duration;

 /// Windows `CREATE_NO_WINDOW` creation flag, for call sites that combine it
 /// with other flags (and then call [`host_env`] themselves). Prefer [`prepare`] otherwise.
@@ -28,95 +25,6 @@ pub fn prepare(cmd: &mut Command) -> &mut Command {
    host_env(cmd)
 }

-/// Starts the child as the leader of its own process group on Unix, so [`kill_tree`] and
-/// [`terminate_tree`] reach what it starts in turn (`gh` → `git`, `npm` → `node`, `mvnw` →
-/// the JVM). A no-op elsewhere: on Windows the tree is found from the child's process id.
-pub fn own_group(cmd: &mut Command) -> &mut Command {
-    #[cfg(unix)]
-    {
-        use std::os::unix::process::CommandExt;
-        cmd.process_group(0);
-    }
-    cmd
-}
-
-/// Kills the child and everything it started, then reaps it.
-///
-/// - Unix: `SIGKILL` to its process group, so spawn it with [`own_group`].
-/// - Windows: `taskkill /T /F`, which walks the tree from the child's process id.
-pub fn kill_tree(child: &mut Child) {
-    #[cfg(unix)]
-    signal_group(child, libc::SIGKILL);
-    #[cfg(windows)]
-    taskkill_tree(child);
-    let _ = child.kill();
-    let _ = child.wait();
-}
-
-/// [`kill_tree`] for a child known by its process id (a `tokio` child): `SIGKILL` to its
-/// process group (spawn it with [`own_group`]) or `taskkill /T /F`. Call it before the child
-/// is reaped, so the id still names it. The child itself is left to its owner to kill and reap.
-pub fn kill_tree_of(pid: u32) {
-    #[cfg(unix)]
-    if let Ok(pid) = libc::pid_t::try_from(pid) {
-        // SAFETY: plain syscall; see `signal_group`.
-        unsafe {
-            libc::kill(-pid, libc::SIGKILL);
-        }
-    }
-    #[cfg(windows)]
-    {
-        let mut taskkill = Command::new("taskkill");
-        prepare(&mut taskkill)
-            .args(["/T", "/F", "/PID", &pid.to_string()])
-            .stdin(Stdio::null())
-            .stdout(Stdio::null())
-            .stderr(Stdio::null());
-        let _ = taskkill.status();
-    }
-    #[cfg(not(any(unix, windows)))]
-    let _ = pid;
-}
-
-/// [`kill_tree`] that first asks the group to exit: `SIGTERM`, then `grace`, then `SIGKILL`.
-/// Git removes its `index.lock` on `SIGTERM`, where `SIGKILL` leaves it behind and the next
-/// git command fails. Windows has no such signal to send from outside the child's console,
-/// so there it is [`kill_tree`].
-pub fn terminate_tree(child: &mut Child, grace: Duration) {
-    #[cfg(unix)]
-    {
-        signal_group(child, libc::SIGTERM);
-        // Sleep rather than `try_wait`: the child stays unreaped, so its process id (and the
-        // group id) cannot be reused before the `SIGKILL` below.
-        std::thread::sleep(grace);
-    }
-    #[cfg(not(unix))]
-    let _ = grace;
-    kill_tree(child);
-}
-
-#[cfg(unix)]
-fn signal_group(child: &Child, signal: libc::c_int) {
-    if let Ok(pid) = libc::pid_t::try_from(child.id()) {
-        // SAFETY: plain syscall. The child is not reaped yet, so `-pid` is still its group (or
-        // no group at all when it was not spawned with `own_group`, and the call fails).
-        unsafe {
-            libc::kill(-pid, signal);
-        }
-    }
-}
-
-#[cfg(windows)]
-fn taskkill_tree(child: &Child) {
-    let mut taskkill = Command::new("taskkill");
-    prepare(&mut taskkill)
-        .args(["/T", "/F", "/PID", &child.id().to_string()])
-        .stdin(Stdio::null())
-        .stdout(Stdio::null())
-        .stderr(Stdio::null());
-    let _ = taskkill.status();
-}
-
 /// Gives `cmd` the host's environment back when the IDE runs from an AppImage. `AppRun` and
 /// its hooks point `LD_LIBRARY_PATH`, `PATH`, `XDG_DATA_DIRS`, `GIO_MODULE_DIR`, `GTK_PATH`,
 /// `GST_PLUGIN_*`, ... into the mounted image for the IDE itself; a host program that
@@ -337,7 +245,10 @@ pub fn find_executable(name: &str, search: &OsStr) -> Option<std::path::PathBuf>
 #[cfg(windows)]
 pub fn user_path() -> Option<OsString> {
    use windows_sys::Win32::Foundation::ERROR_SUCCESS;
-    use windows_sys::Win32::System::Registry::{HKEY, HKEY_CURRENT_USER, KEY_READ, RegCloseKey, RegOpenKeyExW};
+    use windows_sys::Win32::System::Registry::{
+        HKEY, HKEY_CURRENT_USER, KEY_READ, RRF_RT_REG_EXPAND_SZ, RRF_RT_REG_SZ, RegCloseKey, RegGetValueW,
+        RegOpenKeyExW,
+    };

    fn wide(s: &str) -> Vec<u16> {
        s.encode_utf16().chain(std::iter::once(0)).collect()
@@ -348,53 +259,45 @@ pub fn user_path() -> Option<OsString> {
        if RegOpenKeyExW(HKEY_CURRENT_USER, wide("Environment").as_ptr(), 0, KEY_READ, &mut key) != ERROR_SUCCESS {
            return None;
        }
-        let value = read_registry_string(key, &wide("Path"));
+        let read = || {
+            // Only `Path`; `REG_EXPAND_SZ` is accepted so `%USERPROFILE%\…` entries expand.
+            let mut kind = 0u32;
+            let mut len = 0u32;
+            let name = wide("Path");
+            let status = RegGetValueW(
+                key,
+                std::ptr::null(),
+                name.as_ptr(),
+                RRF_RT_REG_SZ | RRF_RT_REG_EXPAND_SZ,
+                &mut kind,
+                std::ptr::null_mut(),
+                &mut len,
+            );
+            if status != ERROR_SUCCESS || len == 0 {
+                return None;
+            }
+            let mut buf = vec![0u16; (len as usize).div_ceil(2)];
+            let status = RegGetValueW(
+                key,
+                std::ptr::null(),
+                name.as_ptr(),
+                RRF_RT_REG_SZ | RRF_RT_REG_EXPAND_SZ,
+                &mut kind,
+                buf.as_mut_ptr() as *mut _,
+                &mut len,
+            );
+            if status != ERROR_SUCCESS {
+                return None;
+            }
+            let text = String::from_utf16_lossy(&buf);
+            Some(text.trim_end_matches('\0').to_owned())
+        };
+        let value = read();
        RegCloseKey(key);
        value.filter(|v| !v.trim().is_empty()).map(OsString::from)
    }
 }

-/// The string of value `name` under open `key`: `REG_SZ` as-is, `REG_EXPAND_SZ` expanded
-/// against the current environment. `None` when the value is missing or unreadable.
-///
-/// A `REG_EXPAND_SZ` value's first size query reports the unexpanded size, so a value
-/// that grows when expanded is re-read at the size the failed call reports. And the
-/// terminating NUL can leak into the read buffer with a stray UTF-16 unit behind it —
-/// seen with a `REG_EXPAND_SZ` user `Path`, where it made `env::set_var("PATH", …)`
-/// panic with "strings passed to WinAPI cannot contain NULs" — so the text is cut at
-/// the first NUL, not just stripped of trailing ones.
-#[cfg(windows)]
-fn read_registry_string(key: windows_sys::Win32::System::Registry::HKEY, name: &[u16]) -> Option<String> {
-    use windows_sys::Win32::Foundation::{ERROR_MORE_DATA, ERROR_SUCCESS};
-    use windows_sys::Win32::System::Registry::{RRF_RT_REG_EXPAND_SZ, RRF_RT_REG_SZ, RegGetValueW};
-
-    const FLAGS: u32 = RRF_RT_REG_SZ | RRF_RT_REG_EXPAND_SZ;
-    let mut kind = 0u32;
-    let mut len = 0u32;
-    // SAFETY: `name` is NUL-terminated and the size query writes only `kind` and `len`.
-    let status =
-        unsafe { RegGetValueW(key, std::ptr::null(), name.as_ptr(), FLAGS, &mut kind, std::ptr::null_mut(), &mut len) };
-    if status != ERROR_SUCCESS || len == 0 {
-        return None;
-    }
-    let buf = loop {
-        let mut buf = vec![0u16; len as usize / 2 + 1];
-        // SAFETY: as above; the buffer holds at least the `len` bytes the call may write.
-        let status = unsafe {
-            RegGetValueW(key, std::ptr::null(), name.as_ptr(), FLAGS, &mut kind, buf.as_mut_ptr() as *mut _, &mut len)
-        };
-        if status == ERROR_SUCCESS {
-            break buf;
-        }
-        if status != ERROR_MORE_DATA || len == 0 {
-            return None;
-        }
-    };
-    let text = String::from_utf16_lossy(&buf);
-    let end = text.find('\0').unwrap_or(text.len());
-    Some(text[..end].to_owned())
-}
-
 /// The user's own `PATH` entries; `None` outside Windows (see the Windows impl).
 #[cfg(not(windows))]
 pub fn user_path() -> Option<OsString> {
@@ -420,28 +323,6 @@ fn append_path_entries(path: &OsStr, extra: &OsStr) -> OsString {
 mod tests {
    use super::*;

-    #[cfg(unix)]
-    #[test]
-    fn kill_tree_of_reaches_what_the_child_started() {
-        use std::io::BufRead;
-        let mut cmd = Command::new("sh");
-        own_group(&mut cmd).args(["-c", "sleep 30 & echo $!; wait"]).stdout(std::process::Stdio::piped());
-        let mut child = cmd.spawn().unwrap();
-        let mut line = String::new();
-        std::io::BufReader::new(child.stdout.take().unwrap()).read_line(&mut line).unwrap();
-        let grandchild: libc::pid_t = line.trim().parse().unwrap();
-        let alive = |pid: libc::pid_t| unsafe { libc::kill(pid, 0) } == 0;
-        assert!(alive(grandchild));
-        kill_tree_of(child.id());
-        let _ = child.wait();
-        // Reparented to init once its parent is gone, which reaps it.
-        let gone = (0..100).any(|_| {
-            std::thread::sleep(Duration::from_millis(20));
-            !alive(grandchild)
-        });
-        assert!(gone, "the grandchild {grandchild} survived");
-    }
-
    #[cfg(windows)]
    #[test]
    fn user_path_reads_the_current_users_path() {
@@ -453,96 +334,6 @@ mod tests {
        }
    }

-    #[cfg(windows)]
-    #[test]
-    fn registry_strings_expand_and_stay_terminator_free() {
-        use windows_sys::Win32::Foundation::ERROR_SUCCESS;
-        use windows_sys::Win32::System::Registry::{
-            HKEY, HKEY_CURRENT_USER, KEY_READ, KEY_WRITE, REG_EXPAND_SZ, REG_SZ, RegCloseKey, RegCreateKeyExW,
-            RegDeleteTreeW, RegSetValueExW,
-        };
-
-        fn wide(s: &str) -> Vec<u16> {
-            s.encode_utf16().chain(std::iter::once(0)).collect()
-        }
-
-        struct TestState {
-            key: HKEY,
-            name: String,
-            variable: String,
-            previous: Option<OsString>,
-        }
-        impl Drop for TestState {
-            fn drop(&mut self) {
-                // SAFETY: the key belongs to this test; Windows environment mutation is safe.
-                unsafe {
-                    RegCloseKey(self.key);
-                    RegDeleteTreeW(HKEY_CURRENT_USER, wide(&self.name).as_ptr());
-                    match &self.previous {
-                        Some(value) => std::env::set_var(&self.variable, value),
-                        None => std::env::remove_var(&self.variable),
-                    }
-                }
-            }
-        }
-        let name = format!("Software\\ai.l0ng.openidea.registry-read-test-{}", std::process::id());
-        let variable = format!("OPENIDEA_TEST_REGVAR_{}", std::process::id());
-        let long = "x".repeat(600);
-        let mut key: HKEY = std::ptr::null_mut();
-        let opened = unsafe {
-            RegCreateKeyExW(
-                HKEY_CURRENT_USER,
-                wide(&name).as_ptr(),
-                0,
-                std::ptr::null(),
-                0,
-                KEY_READ | KEY_WRITE,
-                std::ptr::null(),
-                &mut key,
-                std::ptr::null_mut(),
-            )
-        };
-        assert_eq!(opened, ERROR_SUCCESS, "the test key must be creatable under HKCU\\Software");
-        let _cleanup = TestState { key, name, previous: std::env::var_os(&variable), variable: variable.clone() };
-        // SAFETY: Windows permits environment mutation. No other test uses this process-specific name.
-        unsafe { std::env::set_var(&variable, &long) };
-        let set = |value: &str, kind: u32, data: &[u16]| {
-            // SAFETY: `key` is open for writing and `data` holds `data.len() * 2` bytes.
-            assert_eq!(
-                unsafe {
-                    RegSetValueExW(
-                        key,
-                        wide(value).as_ptr(),
-                        0,
-                        kind,
-                        data.as_ptr() as *const _,
-                        (data.len() * 2) as u32,
-                    )
-                },
-                ERROR_SUCCESS
-            );
-        };
-        let read = |value: &str| read_registry_string(key, &wide(value));
-        set("Plain", REG_SZ, &wide("plain"));
-        set("Expand", REG_EXPAND_SZ, &wide(&format!("%{variable}%\\bin")));
-        set("ExpandLong", REG_EXPAND_SZ, &wide(&format!("%{variable}%")));
-        // Reproduce the reported interior terminator followed by a stale UTF-16 unit.
-        set("TrailingGarbage", REG_SZ, &wide("C:\\Zed\\bin\0n"));
-        set("ExpandTrailingGarbage", REG_EXPAND_SZ, &wide(&format!("%{variable}%\\bin\0n")));
-        set("Empty", REG_SZ, &wide(""));
-        let plain = read("Plain");
-        let expand = read("Expand");
-        let expand_long = read("ExpandLong");
-        assert_eq!(plain.as_deref(), Some("plain"));
-        assert_eq!(expand.as_deref(), Some(format!("{long}\\bin")).as_deref());
-        // Longer than its unexpanded form: needs the re-read at the expanded size.
-        assert_eq!(expand_long.as_deref(), Some(long.as_str()));
-        assert_eq!(read("TrailingGarbage").as_deref(), Some("C:\\Zed\\bin"));
-        assert_eq!(read("ExpandTrailingGarbage").as_deref(), Some(format!("{long}\\bin")).as_deref());
-        assert_eq!(read("Empty").as_deref(), Some(""));
-        assert_eq!(read("Missing"), None);
-    }
-
    #[test]
    fn append_path_entries_keeps_the_order_and_adds_what_is_missing() {
        let join = |dirs: &[&str]| std::env::join_paths(dirs).unwrap();
@@ -711,71 +502,3 @@ mod tests {
        assert_eq!(find_executable("nope", &search), None);
    }
 }
-
-#[cfg(all(test, unix))]
-mod kill_tests {
-    use super::*;
-    use std::path::Path;
-    use std::time::Instant;
-
-    /// Runs `script` in `sh` as its own group's leader and waits for it to write `ready`.
-    fn start(script: &str, ready: &Path) -> Child {
-        let mut cmd = Command::new("sh");
-        cmd.arg("-c").arg(script);
-        let child = own_group(&mut cmd).spawn().unwrap();
-        let deadline = Instant::now() + Duration::from_secs(5);
-        while !ready.exists() {
-            assert!(Instant::now() < deadline, "the script never got ready");
-            std::thread::sleep(Duration::from_millis(10));
-        }
-        child
-    }
-
-    fn assert_gone(pid: libc::pid_t) {
-        let deadline = Instant::now() + Duration::from_secs(5);
-        // SAFETY: signal 0 only checks that the process exists.
-        while unsafe { libc::kill(pid, 0) } == 0 {
-            assert!(Instant::now() < deadline, "process {pid} survived");
-            std::thread::sleep(Duration::from_millis(20));
-        }
-    }
-
-    #[test]
-    fn kill_tree_kills_what_the_child_started() {
-        let dir = tempfile::tempdir().unwrap();
-        let pid_file = dir.path().join("pid");
-        let script = format!("sleep 30 & echo $! > '{0}.tmp' && mv '{0}.tmp' '{0}'; wait", pid_file.display());
-        let mut child = start(&script, &pid_file);
-        let grandchild: libc::pid_t = std::fs::read_to_string(&pid_file).unwrap().trim().parse().unwrap();
-        kill_tree(&mut child);
-        assert!(child.try_wait().unwrap().is_some(), "the child is reaped");
-        assert_gone(grandchild);
-    }
-
-    #[test]
-    fn terminate_tree_lets_the_child_clean_up() {
-        let dir = tempfile::tempdir().unwrap();
-        let (ready, cleaned) = (dir.path().join("ready"), dir.path().join("cleaned"));
-        let script = format!(
-            "trap 'touch \"{}\"; exit 0' TERM; touch \"{}\"; sleep 30 & wait",
-            cleaned.display(),
-            ready.display()
-        );
-        let mut child = start(&script, &ready);
-        terminate_tree(&mut child, Duration::from_millis(500));
-        assert!(cleaned.exists(), "the SIGTERM handler ran before the SIGKILL");
-        assert!(child.try_wait().unwrap().is_some(), "the child is reaped");
-    }
-
-    #[test]
-    fn terminate_tree_still_kills_a_child_that_ignores_sigterm() {
-        let dir = tempfile::tempdir().unwrap();
-        let ready = dir.path().join("ready");
-        let script = format!("trap '' TERM; touch \"{}\"; while :; do sleep 1; done", ready.display());
-        let mut child = start(&script, &ready);
-        let started = Instant::now();
-        terminate_tree(&mut child, Duration::from_millis(50));
-        assert!(child.try_wait().unwrap().is_some(), "the child is reaped");
-        assert!(started.elapsed() < Duration::from_secs(5));
-    }
-}
@@ -207,58 +207,6 @@ impl ProxySettings {
        env.push((OsString::from("no_proxy"), Some(OsString::from(no_proxy))));
        env
    }
-
-    /// System properties that make a JVM follow this configuration. A JVM reads none of
-    /// [`Self::child_env`]: a Java tool (jetty, Maven's resolver, a language server's own
-    /// HTTP client) goes direct without these, and a repository its proxy answers in
-    /// milliseconds can then hang it instead.
-    pub fn jvm_args(&self) -> Vec<String> {
-        match self.mode {
-            // macOS and Windows JVMs read the system proxy with this one.
-            ProxyMode::Auto => vec!["-Djava.net.useSystemProxies=true".into()],
-            ProxyMode::None => Vec::new(),
-            ProxyMode::Manual if self.manual() => self.manual_jvm_args(),
-            ProxyMode::Manual => Vec::new(),
-        }
-    }
-
-    fn manual_jvm_args(&self) -> Vec<String> {
-        let (host, port) = (self.host.trim(), self.port);
-        match self.kind {
-            ProxyKind::Http => {
-                // HTTPS hosts read `https.proxyHost`, plain ones `http.proxyHost`.
-                let mut args = vec![
-                    format!("-Dhttp.proxyHost={host}"),
-                    format!("-Dhttp.proxyPort={port}"),
-                    format!("-Dhttps.proxyHost={host}"),
-                    format!("-Dhttps.proxyPort={port}"),
-                ];
-                let hosts = self.non_proxy_hosts();
-                if !hosts.is_empty() {
-                    args.push(format!("-Dhttp.nonProxyHosts={}", hosts.join("|")));
-                }
-                args
-            }
-            // SOCKS proxies every TCP connection, so there is one property pair.
-            ProxyKind::Socks => vec![
-                format!("-DsocksProxyHost={host}"),
-                format!("-DsocksProxyPort={port}"),
-                "-Djava.net.useSystemProxies=false".into(),
-            ],
-        }
-    }
-
-    /// [`Self::no_proxy`] in the JVM's `http.nonProxyHosts` format: `|` between host
-    /// globs. CIDR ranges and IPv6 literals have no equivalent there and are dropped.
-    fn non_proxy_hosts(&self) -> Vec<String> {
-        let mut hosts: Vec<String> = LOOPBACK.iter().filter(|h| !h.contains(':')).map(|h| (*h).to_owned()).collect();
-        for entry in self.no_proxy_entries() {
-            if !entry.contains(['/', ':', '[', ']']) && !hosts.contains(&entry) {
-                hosts.push(entry);
-            }
-        }
-        hosts
-    }
 }

 /// Case-insensitive host glob (`pattern` is lowercase): `*` matches any run of characters.
@@ -344,34 +292,6 @@ mod tests {
        assert!(p.child_env().is_empty());
    }

-    #[test]
-    fn jvm_args_carry_the_proxy_as_system_properties() {
-        // A JVM reads none of `child_env`: a Java language server needs these to not go
-        // direct while curl, git and Node follow the environment.
-        assert_eq!(ProxySettings::default().jvm_args(), ["-Djava.net.useSystemProxies=true"]);
-        assert!(ProxySettings { mode: ProxyMode::None, ..manual("proxy", 3128) }.jvm_args().is_empty());
-        assert_eq!(
-            manual("proxy.corp", 3128).jvm_args(),
-            [
-                "-Dhttp.proxyHost=proxy.corp",
-                "-Dhttp.proxyPort=3128",
-                "-Dhttps.proxyHost=proxy.corp",
-                "-Dhttps.proxyPort=3128",
-                "-Dhttp.nonProxyHosts=localhost|127.0.0.1",
-            ]
-        );
-        let socks = ProxySettings { kind: ProxyKind::Socks, ..manual("10.0.0.1", 1080) };
-        assert_eq!(socks.jvm_args()[..2], ["-DsocksProxyHost=10.0.0.1", "-DsocksProxyPort=1080"]);
-        // `http.nonProxyHosts` takes host globs: CIDR ranges and IPv6 literals drop out.
-        let p = ProxySettings {
-            no_proxy: "*.corp.com, 172.0.0.0/8, [::1], ::1, localhost".into(),
-            ..manual("proxy.corp", 3128)
-        };
-        assert_eq!(p.jvm_args().last().unwrap(), "-Dhttp.nonProxyHosts=localhost|127.0.0.1|*.corp.com");
-        // A manual proxy without a host connects directly, and so does its JVM.
-        assert!(manual(" ", 80).jvm_args().is_empty());
-    }
-
    #[test]
    fn manual_http_and_socks_urls() {
        let p = manual("proxy.corp", 3128);
@@ -132,7 +132,7 @@ pub struct DeploymentServer {
 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
 #[serde(default, rename_all = "camelCase")]
 pub struct DeploymentMapping {
-    /// Project-relative folder, or absolute inside the project; empty = the project root.
+    /// Project-relative folder; empty = the project root.
    pub local: String,
    /// Remote folder, relative to the server root (a leading `/` is the root too).
    pub deployment: String,
@@ -58,68 +58,6 @@ pub struct Settings {
    pub deployment: DeploymentSettings,
    /// Build, Execution, Deployment › Run Targets.
    pub run_targets: Vec<RunTarget>,
-    pub cmake: CMakeSettings,
-    /// Tools › Agents › Chat.
-    pub agents: AgentSettings,
-    /// Plugin settings (`[contributes.settings]`): plugin id → its values by key.
-    #[specta(type = BTreeMap<String, BTreeMap<String, specta_typescript::Unknown>>)]
-    pub plugins: BTreeMap<String, serde_json::Map<String, serde_json::Value>>,
-}
-
-/// What the meters in an agent task's header show.
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct AgentSettings {
-    /// Context window use.
-    pub show_context_usage: bool,
-    /// Time the agent spent on the task.
-    pub show_work_time: bool,
-    /// The account's usage-limit windows (Claude's 5-hour and weekly limits).
-    pub show_usage_limits: bool,
-    /// What the session has cost so far, as the agent reports it.
-    pub show_cost: bool,
-}
-
-impl Default for AgentSettings {
-    fn default() -> Self {
-        Self { show_context_usage: true, show_work_time: true, show_usage_limits: true, show_cost: false }
-    }
-}
-
-/// Absent profiles retain automatic discovery for existing projects.
-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct CMakeSettings {
-    #[serde(skip_serializing_if = "Option::is_none")]
-    #[specta(optional)]
-    pub profiles: Option<Vec<CMakeProfile>>,
-}
-
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct CMakeProfile {
-    pub name: String,
-    pub build_type: String,
-    pub generator: String,
-    pub cmake_args: Vec<String>,
-    /// Empty uses cmake-build-<lowercase build type>.
-    pub build_dir: String,
-    pub build_args: Vec<String>,
-    pub env: BTreeMap<String, String>,
-}
-
-impl Default for CMakeProfile {
-    fn default() -> Self {
-        Self {
-            name: "Debug".into(),
-            build_type: "Debug".into(),
-            generator: String::new(),
-            cmake_args: Vec::new(),
-            build_dir: String::new(),
-            build_args: Vec::new(),
-            env: BTreeMap::new(),
-        }
-    }
 }

 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
@@ -216,9 +154,6 @@ impl Default for Settings {
            ssh: SshSettings::default(),
            deployment: DeploymentSettings::default(),
            run_targets: Vec::new(),
-            cmake: CMakeSettings::default(),
-            agents: AgentSettings::default(),
-            plugins: BTreeMap::new(),
        }
    }
 }
@@ -262,7 +197,7 @@ impl Default for GeneralSettings {
    fn default() -> Self {
        Self {
            reopen_last_project: true,
-            confirm_exit: true,
+            confirm_exit: false,
            open_project_in: "ask".into(),
            default_project_directory: String::new(),
            save_on_idle: false,
@@ -327,8 +262,7 @@ impl Default for NotificationGroupSettings {
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
 #[serde(default, rename_all = "camelCase")]
 pub struct AppearanceSettings {
-    /// A built-in theme id (`light`, `dark`, `dark-hc`, …), `system` (legacy
-    /// "Sync with OS"), or a plugin's theme: `plugin:<plugin-id>/<theme-id>`.
+    /// `dark` | `light` | `system` | `dark-hc` (high-contrast dark)
    pub theme: String,
    pub accent: String,
    pub ui_font_size: f32,
@@ -337,8 +271,6 @@ pub struct AppearanceSettings {
    pub sync_with_os: bool,
    pub preferred_light_theme: String,
    pub preferred_dark_theme: String,
-    /// A plugin's file icon theme (`<plugin-id>/<theme-id>`); empty = the built-in icons.
-    pub file_icon_theme: String,
    /// IDE zoom in percent (50–300).
    pub zoom: u32,
    /// Apply `ui_font_family` / `ui_font_size` (otherwise the theme's).
@@ -393,7 +325,6 @@ impl Default for AppearanceSettings {
            sync_with_os: false,
            preferred_light_theme: "light".into(),
            preferred_dark_theme: "dark".into(),
-            file_icon_theme: String::new(),
            zoom: 100,
            use_custom_font: false,
            ui_font_family: "Inter".into(),
@@ -574,65 +505,25 @@ impl Default for FileSettings {
 pub struct LanguagesSettings {
    pub python: PythonSettings,
    pub node: NodeSettings,
-    pub php: PhpSettings,
    pub rust: RustSettings,
    pub go: GoSettings,
    pub typescript: TypeScriptSettings,
-    pub prettier: ExternalFormatterSettings,
-    pub oxfmt: ExternalFormatterSettings,
+    pub prettier: PrettierSettings,
    pub java: JavaSettings,
-    pub ruby: RubySettings,
-    pub markdown: MarkdownSettings,
 }

-/// Languages & Frameworks › Markdown. Like IDEA's, it is application-level only.
-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct MarkdownSettings {
-    /// Preview (and notebook Markdown cell) font size in px; unset follows the editor font size.
-    pub preview_font_size: Option<u32>,
-}
-
-impl LanguagesSettings {
-    pub fn formatter(&self, tool: ExternalFormatter) -> &ExternalFormatterSettings {
-        match tool {
-            ExternalFormatter::Prettier => &self.prettier,
-            ExternalFormatter::Oxfmt => &self.oxfmt,
-        }
-    }
-}
-
-/// A formatter that runs outside the language servers, with its own settings group.
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "lowercase")]
-pub enum ExternalFormatter {
-    Prettier,
-    Oxfmt,
-}
-
-impl ExternalFormatter {
-    /// The name of the tool in the tool registry.
-    pub fn name(self) -> &'static str {
-        match self {
-            Self::Prettier => "prettier",
-            Self::Oxfmt => "oxfmt",
-        }
-    }
-}
-
-/// An external formatter (Prettier, oxfmt) and the languages it formats.
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
 #[serde(default, rename_all = "camelCase")]
-pub struct ExternalFormatterSettings {
+pub struct PrettierSettings {
    /// Empty path: project node_modules, managed installation, then PATH.
    pub path: String,
    pub languages: Vec<String>,
-    /// Prefer this formatter even when a language server offers formatting.
+    /// Prefer Prettier even when a language server offers formatting.
    pub prefer: bool,
    pub run_on_save: bool,
 }

-impl Default for ExternalFormatterSettings {
+impl Default for PrettierSettings {
    fn default() -> Self {
        Self {
            path: String::new(),
@@ -676,20 +567,6 @@ impl Default for PythonSettings {
    }
 }

-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct PhpSettings {
-    /// `php` CLI executable; empty = the one on `PATH`.
-    pub interpreter: String,
-}
-
-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
-#[serde(default, rename_all = "camelCase")]
-pub struct RubySettings {
-    /// Project interpreter executable; empty = auto-detect (`.ruby-version`, mise / asdf, else `ruby` on PATH).
-    pub interpreter: String,
-}
-
 #[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
 #[serde(default, rename_all = "camelCase")]
 pub struct NodeSettings {
@@ -794,19 +671,6 @@ pub struct GradleSettings {
    pub home: String,
    /// Empty = Gradle's default user home.
    pub user_home: String,
-    /// IDEA's "Build and run using": who builds and launches an Application main.
-    pub run_using: GradleRunUsing,
-}
-
-/// IDEA's "Build and run using" for Gradle builds; IDEA defaults to Gradle.
-#[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub enum GradleRunUsing {
-    /// A `JavaExec` task on the source set's runtime classpath (`gradleRun.gradle`).
-    #[default]
-    Gradle,
-    /// The Java language server's classpath, launched by OpenIDEA.
-    Ide,
 }

 #[derive(Clone, Debug, Default, PartialEq, Serialize, Deserialize, Type)]
@@ -901,24 +765,6 @@ impl Settings {
 mod tests {
    use super::*;

-    #[test]
-    fn cmake_profile_argument_arrays_round_trip() {
-        let mut settings = Settings::default();
-        assert!(settings.cmake.profiles.is_none());
-        assert!(CMakeProfile::default().cmake_args.is_empty());
-        assert!(CMakeProfile::default().build_args.is_empty());
-        let profile = CMakeProfile {
-            cmake_args: ["-DMESSAGE=two words", "-DQUOTE=\"hello\"", ""].map(String::from).into(),
-            build_args: ["-j", "8", "--", "LABEL=it's a build"].map(String::from).into(),
-            ..Default::default()
-        };
-        settings.cmake.profiles = Some(vec![profile.clone()]);
-        let value = serde_json::to_value(&settings).unwrap();
-        assert_eq!(value["cmake"]["profiles"][0]["cmakeArgs"], serde_json::json!(profile.cmake_args));
-        assert_eq!(value["cmake"]["profiles"][0]["buildArgs"], serde_json::json!(profile.build_args));
-        assert_eq!(serde_json::from_value::<Settings>(value).unwrap(), settings);
-    }
-
    #[test]
    fn ui_font_fallback_defaults_empty_and_round_trips() {
        let old: Settings = serde_json::from_str(r#"{"appearance":{"useCustomFont":true}}"#).unwrap();
@@ -948,20 +794,6 @@ mod tests {
        }
    }

-    #[test]
-    fn agent_meters_default_and_round_trip() {
-        let old: Settings = serde_json::from_str(r#"{"agents":{"showCost":true}}"#).unwrap();
-        assert!(old.agents.show_cost);
-        assert!(old.agents.show_context_usage && old.agents.show_work_time && old.agents.show_usage_limits);
-        assert!(!Settings::default().agents.show_cost);
-        let mut settings = Settings::default();
-        settings.agents.show_usage_limits = false;
-        let json = serde_json::to_value(&settings).unwrap();
-        assert_eq!(json["agents"]["showUsageLimits"], false);
-        let restored: Settings = serde_json::from_value(json).unwrap();
-        assert_eq!(restored.agents, settings.agents);
-    }
-
    #[test]
    fn main_menu_style_defaults_and_round_trips() {
        let old: Settings = serde_json::from_str(r#"{"appearance":{"compactMode":true}}"#).unwrap();
@@ -1047,7 +879,6 @@ mod gradle_settings_tests {
                distribution,
                home: "/gradle".into(),
                user_home: "/cache/gradle".into(),
-                run_using: GradleRunUsing::Ide,
            };
            let restored: Settings = serde_json::from_str(&serde_json::to_string(&settings).unwrap()).unwrap();
            assert_eq!(restored.languages.java.gradle, settings.languages.java.gradle);
@@ -44,39 +44,6 @@ pub fn cancel(id: TaskId) -> bool {
    }
 }

-/// A progress title a tool reported, made readable: a leading absolute executable path
-/// (rust-analyzer reports `/…/bin/cargo check`) shows as its program name (`cargo check`).
-pub fn display_title(title: &str) -> String {
-    let is_sep = |c: char| c == '/' || c == '\\';
-    let b = title.as_bytes();
-    let absolute = title.starts_with(is_sep)
-        || (b.len() > 2 && b[0].is_ascii_alphabetic() && b[1] == b':' && is_sep(b[2] as char));
-    if !absolute {
-        return title.to_owned();
-    }
-    // The path runs on through spaces (`Application Support/…`) while the next word still
-    // continues it; the first word without a separator, an option or a new path ends it.
-    let mut end = title.find(' ').unwrap_or(title.len());
-    while end < title.len() {
-        let rest = &title[end + 1..];
-        let word = rest.split(' ').next().unwrap_or_default();
-        if word.is_empty() || !word.contains(is_sep) || word.starts_with(is_sep) || word.starts_with('-') {
-            break;
-        }
-        end += 1 + word.len();
-    }
-    let (path, rest) = title.split_at(end);
-    let name = path.rsplit(is_sep).next().unwrap_or(path);
-    let name = [".exe", ".cmd", ".bat"]
-        .iter()
-        .find_map(|ext| {
-            let cut = name.len().checked_sub(ext.len())?;
-            (name.is_char_boundary(cut) && name[cut..].eq_ignore_ascii_case(ext)).then(|| &name[..cut])
-        })
-        .unwrap_or(name);
-    if name.is_empty() { title.to_owned() } else { format!("{name}{rest}") }
-}
-
 #[cfg(test)]
 mod tests {
    use super::*;
@@ -104,28 +71,4 @@ mod tests {
        assert!(!cancel(other), "an ended task is not cancelled");
        assert_eq!(hits.load(Ordering::SeqCst), 1);
    }
-
-    #[test]
-    fn display_title_shows_a_leading_executable_path_as_its_name() {
-        for (title, shown) in [
-            ("/Users/thomas/Library/Application Support/mbx/bin/cargo check", "cargo check"),
-            ("/home/me/.cargo/bin/cargo clippy (#2)", "cargo clippy (#2)"),
-            (
-                "/opt/my tools/bin/cargo check --manifest-path /x/Cargo.toml",
-                "cargo check --manifest-path /x/Cargo.toml",
-            ),
-            (r"C:\Users\me\.cargo\bin\cargo.exe check", "cargo check"),
-            (r"C:\Program Files\Rust\bin\cargo.EXE check", "cargo check"),
-            (r"\\server\share\tools\x.cmd build", "x build"),
-            ("/usr/bin/make", "make"),
-            ("cargo check", "cargo check"),
-            ("Indexing", "Indexing"),
-            ("Building compile-time-deps", "Building compile-time-deps"),
-            ("Loading /src/app (2/3)", "Loading /src/app (2/3)"),
-            ("/", "/"),
-            ("", ""),
-        ] {
-            assert_eq!(display_title(title), shown, "{title:?}");
-        }
-    }
 }
@@ -97,16 +97,6 @@ pub struct TextEdit {
 #[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, Type)]
 pub struct WorkspaceEdit {
    pub files: Vec<FileEdit>,
-    /// Content fingerprints captured before presenting an edit for confirmation.
-    #[serde(default)]
-    #[specta(optional)]
-    pub preconditions: Vec<WorkspaceEditPrecondition>,
-}
-
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
-pub struct WorkspaceEditPrecondition {
-    pub path: crate::IpcPath,
-    pub hash: String,
 }

 impl WorkspaceEdit {
@@ -118,26 +108,17 @@ impl WorkspaceEdit {
        let mut resolve_aliases = true;
        for file in std::mem::take(&mut self.files) {
            match file {
-                FileEdit::Edit { path, edits, version } => {
+                FileEdit::Edit { path, edits } => {
                    let path = if resolve_aliases {
                        dunce::canonicalize(&path).unwrap_or_else(|_| path.to_path_buf())
                    } else {
                        path.to_path_buf()
                    };
                    let index = *batch.entry(path.clone()).or_insert_with(|| {
-                        files.push(FileEdit::Edit { path: path.clone().into(), edits: Vec::new(), version });
+                        files.push(FileEdit::Edit { path: path.into(), edits: Vec::new() });
                        files.len() - 1
                    });
-                    let FileEdit::Edit { edits: own, version: expected, .. } = &mut files[index] else {
-                        unreachable!()
-                    };
-                    if expected.is_some() && version.is_some() && *expected != version {
-                        // Keep incompatible constraints so application rejects them
-                        // before changing any file instead of silently losing one.
-                        files.push(FileEdit::Edit { path: path.into(), edits, version });
-                        continue;
-                    }
-                    *expected = expected.or(version);
+                    let FileEdit::Edit { edits: own, .. } = &mut files[index] else { unreachable!() };
                    for edit in edits {
                        if !own.contains(&edit) {
                            own.push(edit);
@@ -159,26 +140,10 @@ impl WorkspaceEdit {
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
 #[serde(tag = "kind", rename_all = "camelCase")]
 pub enum FileEdit {
-    Edit {
-        path: crate::IpcPath,
-        edits: Vec<TextEdit>,
-        /// LSP TextDocumentEdit version; null/unversioned edits use content preconditions.
-        #[serde(default)]
-        #[specta(optional)]
-        version: Option<i32>,
-    },
-    Create {
-        path: crate::IpcPath,
-        overwrite: bool,
-    },
-    Rename {
-        from: crate::IpcPath,
-        to: crate::IpcPath,
-    },
-    Delete {
-        path: crate::IpcPath,
-        recursive: bool,
-    },
+    Edit { path: crate::IpcPath, edits: Vec<TextEdit> },
+    Create { path: crate::IpcPath, overwrite: bool },
+    Rename { from: crate::IpcPath, to: crate::IpcPath },
+    Delete { path: crate::IpcPath, recursive: bool },
 }

 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, Serialize, Deserialize, Type)]
@@ -289,7 +254,7 @@ mod workspace_edit_tests {
        std::fs::write(&real, "add()").unwrap();
        std::os::unix::fs::symlink(&real, &alias).unwrap();
        let change = TextEdit { range: Range::new(Pos::new(0, 0), Pos::new(0, 3)), new_text: "sum_values".into() };
-        let edit = |path: PathBuf| FileEdit::Edit { path: path.into(), edits: vec![change.clone()], version: None };
+        let edit = |path: PathBuf| FileEdit::Edit { path: path.into(), edits: vec![change.clone()] };
        let mut workspace = WorkspaceEdit {
            files: vec![
                edit(real.clone()),
@@ -297,7 +262,6 @@ mod workspace_edit_tests {
                FileEdit::Create { path: dir.path().join("other").into(), overwrite: false },
                edit(real),
            ],
-            ..Default::default()
        };
        workspace.deduplicate();
        assert_eq!(workspace.files.len(), 3);
@@ -18,7 +18,6 @@ pub enum Tool {
    Go,
    Maven,
    Gradle,
-    Ruby,
 }

 impl Tool {
@@ -31,7 +30,6 @@ impl Tool {
            Tool::Go => &["go", "golang"],
            Tool::Maven => &["maven"],
            Tool::Gradle => &["gradle"],
-            Tool::Ruby => &["ruby"],
        }
    }
 }
@@ -41,8 +41,6 @@ impl Default for VcsSettings {
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
 #[serde(default, rename_all = "camelCase")]
 pub struct GitSettings {
-    /// Show blame after the current editor line.
-    pub inline_blame: bool,
    /// Path to the git executable; empty = auto-detect.
    pub executable: String,
    /// Default of Update Project: `merge` | `rebase`.
@@ -73,7 +71,6 @@ pub struct GitSettings {
 impl Default for GitSettings {
    fn default() -> Self {
        Self {
-            inline_blame: false,
            executable: String::new(),
            update_method: "merge".into(),
            auto_update_on_push_rejected: false,
@@ -8,7 +8,7 @@

 use ide_core::process::executable_names;
 use ide_core::{IdeError, IdeResult};
-use ide_language::{DebuggerConfig, LanguageRegistry, ProgramPin};
+use ide_language::{DebuggerConfig, LanguageRegistry};
 use std::future::Future;
 use std::path::{Path, PathBuf};
 use std::pin::Pin;
@@ -44,8 +44,6 @@ pub struct AdapterSpec {
    /// `host:port` of an adapter inside another program (the Godot editor): connected to
    /// when it accepts, else `command` is started.
    pub connect: Option<String>,
-    /// A plugin language's adapter: start exactly this approved program.
-    pub pinned: Option<ProgramPin>,
 }

 /// Built-in adapters used when no language definition names `adapter`.
@@ -57,7 +55,6 @@ fn builtin(adapter: &str) -> Option<DebuggerConfig> {
        transport: transport.to_owned(),
        connect: None,
        install_hint: Some(hint.to_owned()),
-        pinned: None,
    };
    Some(match adapter {
        "codelldb" => cfg(
@@ -136,7 +133,6 @@ pub fn resolve(config: &DebuggerConfig, cwd: PathBuf) -> AdapterSpec {
        env: Vec::new(),
        server_host: None,
        connect: config.connect.clone(),
-        pinned: config.pinned.clone(),
    }
 }

@@ -430,20 +426,12 @@ impl AdapterLauncher for ProcessLauncher {
            if is_plugin_bundle(&spec.command) {
                return Err(not_standalone(&spec));
            }
-            let binary = match spec.pinned.clone() {
-                Some(pin) => tokio::task::spawn_blocking(move || pin.verify().map(Path::to_path_buf))
-                    .await
-                    .map_err(|e| IdeError::internal(e.to_string()))?
-                    .map_err(|e| IdeError::new(ide_core::error::ErrorKind::PermissionDenied, e))?,
-                None => {
-                    let (command, cwd) = (spec.command.clone(), spec.cwd.clone());
-                    tokio::task::spawn_blocking(move || resolve_binary(&command, &cwd))
-                        .await
-                        .ok()
-                        .flatten()
-                        .ok_or_else(|| missing(&spec))?
-                }
-            };
+            let (command, cwd) = (spec.command.clone(), spec.cwd.clone());
+            let binary = tokio::task::spawn_blocking(move || resolve_binary(&command, &cwd))
+                .await
+                .ok()
+                .flatten()
+                .ok_or_else(|| missing(&spec))?;
            let port = match spec.transport {
                // An embedded adapter started without `${port}` listens on its usual address.
                Transport::Tcp => match &embedded {
@@ -1389,16 +1389,6 @@ impl DebugManager {
        })
    }

-    /// Stops every session `key` started: the window that opened the project is closing.
-    pub async fn stop_key(&self, key: &str) {
-        let ids: Vec<DebugSessionId> = self.sessions(Some(key)).into_iter().map(|s| s.id).collect();
-        for id in ids {
-            if let Err(e) = self.stop(id).await {
-                tracing::debug!("debug session {id:?} did not stop: {e}");
-            }
-        }
-    }
-
    /// Stops a session and its child sessions.
    pub async fn stop(&self, s: DebugSessionId) -> IdeResult<()> {
        let session = self.session(s)?;
@@ -405,7 +405,7 @@ async fn on_event(mgr: &Arc<DebugManager>, s: &Arc<Session>, event: &str, mut bo
                let mut progress = s.progress.lock();
                let id =
                    if done { progress.remove(&pid) } else { Some(*progress.entry(pid).or_insert_with(TaskId::next)) };
-                (id, str_("title").map(|t| ide_core::task::display_title(&t)).unwrap_or_else(|| s.name.clone()))
+                (id, str_("title").unwrap_or_else(|| s.name.clone()))
            };
            let Some(id) = id else { return };
            s.owner.sink.emit(IdeEvent::Task {
@@ -915,7 +915,6 @@ fn godot_registry(port: u16, command: &str, args: &[&str]) -> Arc<LanguageRegist
            transport: "tcp".into(),
            connect: Some(format!("127.0.0.1:{port}")),
            install_hint: Some("Open the project in the Godot editor".into()),
-            pinned: None,
        }),
    };
    Arc::new(LanguageRegistry::from_configs(vec![lang]))
@@ -1148,58 +1147,3 @@ async fn java_stack_frames_without_breakpoints_normalize_windows_paths() {
        h.manager.stop(id).await.unwrap();
    }
 }
-
-/// A built-in language definition (GDScript) shipped by a plugin
-/// instead: its debugger starts the program approved for the plugin's
-/// `process:godot` grant, and refuses once that file changed.
-#[cfg(unix)]
-#[tokio::test]
-async fn a_plugin_language_runs_its_debug_adapter_from_the_approved_program() {
-    use ide_language::ProgramPin;
-    use ide_language::plugin_point::{PluginLanguages, parse_definition};
-    use std::os::unix::fs::PermissionsExt;
-
-    let dir = std::env::temp_dir().join(format!("openidea-plugin-dap-{}", std::process::id()));
-    std::fs::create_dir_all(&dir).unwrap();
-    // Stands in for `godot --headless --editor …`.
-    let program = dir.join("godot");
-    std::fs::write(&program, "#!/bin/sh\nexec sleep 30\n").unwrap();
-    std::fs::set_permissions(&program, std::fs::Permissions::from_mode(0o755)).unwrap();
-
-    let port = std::net::TcpListener::bind(("127.0.0.1", 0)).unwrap().local_addr().unwrap().port();
-    let mut gdscript = parse_definition(include_str!("../../../languages/gdscript.toml")).unwrap();
-    let debugger = gdscript.debugger.as_mut().unwrap();
-    debugger.args.clear();
-    debugger.connect = Some(format!("127.0.0.1:{port}"));
-
-    // No built-in GDScript: it comes from the plugin.
-    let registry = Arc::new(LanguageRegistry::from_configs(Vec::new()));
-    let store = PluginLanguages::new();
-    registry.attach_plugins(store.clone());
-    let pin = ProgramPin::approve(&program).unwrap();
-    store.set_process_policy(Arc::new(move |plugin, cap| {
-        (plugin == "acme.godot" && cap.to_string() == "process:godot").then(|| pin.clone())
-    }));
-    let _language = store.add("acme.godot".into(), gdscript);
-
-    let log: Log = Arc::default();
-    let server_log = log.clone();
-    tokio::spawn(async move {
-        tokio::time::sleep(std::time::Duration::from_millis(300)).await;
-        let listener = tokio::net::TcpListener::bind(("127.0.0.1", port)).await.unwrap();
-        let (stream, _) = listener.accept().await.unwrap();
-        fake_adapter(stream, server_log, Script::default()).await;
-    });
-    let (owner, _events) = recording_owner("main");
-    let manager = DebugManager::new(registry.clone());
-    let id = manager.start(godot_launch(&dir), owner).await.unwrap();
-    assert!(log.lock().iter().any(|m| m["command"] == "launch"));
-    manager.stop(id).await.unwrap();
-
-    // Replaced after approval: refused before anything starts.
-    std::fs::write(&program, "#!/bin/sh\nexec sleep 31\n").unwrap();
-    let (owner, _events) = recording_owner("main");
-    let err = manager.start(godot_launch(&dir), owner).await.unwrap_err();
-    assert_eq!(err.kind, ide_core::error::ErrorKind::PermissionDenied, "{}", err.message);
-    let _ = std::fs::remove_dir_all(&dir);
-}
@@ -13,5 +13,8 @@ specta.workspace = true
 tracing.workspace = true
 which = "8"

+[target.'cfg(unix)'.dependencies]
+libc = "0.2"
+
 [dev-dependencies]
 tempfile.workspace = true
@@ -1,16 +1,11 @@
 //! Child processes of the docker CLI: bounded runs and cancellable line streams.

-use ide_core::process::terminate_tree;
 use ide_core::{CancellationToken, IdeError, IdeResult};
 use std::io::Read;
 use std::process::{Child, Command, Stdio};
 use std::sync::mpsc;
 use std::time::{Duration, Instant};

-/// How long a cancelled or timed-out child's process group (CLI plugins such as compose)
-/// gets to exit on `SIGTERM`, and clean up, before `SIGKILL`.
-const KILL_GRACE: Duration = Duration::from_millis(20);
-
 pub(crate) struct Output {
    pub stdout: String,
    pub stderr: String,
@@ -25,13 +20,36 @@ pub(crate) enum Stream {

 fn prepare(cmd: &mut Command) {
    cmd.stdin(Stdio::null()).stdout(Stdio::piped()).stderr(Stdio::piped());
-    ide_core::process::prepare(ide_core::process::own_group(cmd));
+    #[cfg(unix)]
+    {
+        use std::os::unix::process::CommandExt;
+        cmd.process_group(0);
+    }
+    ide_core::process::prepare(cmd);
 }

 fn spawn(cmd: &mut Command) -> IdeResult<Child> {
    cmd.spawn().map_err(|e| IdeError::unavailable(format!("could not run docker: {e}")))
 }

+/// Kills the child and, on Unix, its whole process group (CLI plugins such as compose).
+pub(crate) fn kill(child: &mut Child) {
+    #[cfg(unix)]
+    {
+        let pid = child.id() as libc::pid_t;
+        // SAFETY: plain syscall; the child leads its own process group (`prepare`).
+        unsafe {
+            libc::kill(-pid, libc::SIGTERM);
+        }
+        std::thread::sleep(Duration::from_millis(20));
+        unsafe {
+            libc::kill(-pid, libc::SIGKILL);
+        }
+    }
+    let _ = child.kill();
+    let _ = child.wait();
+}
+
 fn read_all(mut pipe: impl Read + Send + 'static) -> std::thread::JoinHandle<String> {
    std::thread::spawn(move || {
        let mut buf = Vec::new();
@@ -70,11 +88,11 @@ pub(crate) fn run_with_input(
            break status;
        }
        if cancel.is_some_and(CancellationToken::is_cancelled) {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::cancelled());
        }
        if Instant::now() >= deadline {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::unavailable("docker did not respond in time"));
        }
        std::thread::sleep(Duration::from_millis(10));
@@ -148,7 +166,7 @@ pub(crate) fn stream(
    let mut stderr_tail: Vec<String> = Vec::new();
    while open > 0 {
        if cancel.is_cancelled() {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::cancelled());
        }
        match rx.recv_timeout(Duration::from_millis(50)) {
@@ -171,7 +189,7 @@ pub(crate) fn stream(
            break status;
        }
        if cancel.is_cancelled() {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::cancelled());
        }
        std::thread::sleep(Duration::from_millis(10));
@@ -1,24 +0,0 @@
-[package]
-name = "ide-extension"
-description = "Plugin manifest, extension points, contribution registry and capability model (no Wasm runtime)"
-version.workspace = true
-edition.workspace = true
-license.workspace = true
-
-[dependencies]
-ide-core.workspace = true
-serde.workspace = true
-serde_json.workspace = true
-specta.workspace = true
-specta-typescript.workspace = true
-toml.workspace = true
-tracing.workspace = true
-parking_lot.workspace = true
-semver = "1"
-blake3.workspace = true
-zip.workspace = true
-base64.workspace = true
-ed25519-dalek = "3"
-
-[dev-dependencies]
-tempfile.workspace = true
@@ -1,277 +0,0 @@
-//! What a plugin may do beyond pure computation, and how risky each grant is.
-//!
-//! Capabilities are written as strings in the manifest (`project.read`,
-//! `net:crates.io`, `process:cargo`) and stored the same way in the grant
-//! ledger. The 0.1 permission names (`project-read`, …) parse as their 0.2
-//! equivalents.
-
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
-use specta::Type;
-use std::fmt;
-use std::str::FromStr;
-
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub enum Capability {
-    /// Read files inside the project root; the project root itself.
-    ProjectRead,
-    /// The focused editor's file, selection and text.
-    EditorRead,
-    /// Edit the focused editor (versioned edits).
-    EditorWrite,
-    VcsRead,
-    VcsWrite,
-    /// The plugin's own key-value store and data directory.
-    Storage,
-    /// The plugin's own secrets (kept in the client's OS keychain).
-    Secrets,
-    /// Workbench events (file opened, saved, focus…), not keystrokes.
-    Events,
-    /// Keystrokes and editor input events.
-    InputEvents,
-    /// The system clipboard, from the plugin's web views.
-    Clipboard,
-    /// HTTP(S) to one host (`*.example.com` matches subdomains).
-    Net(String),
-    /// Run one external program. Full code execution: never fine-grained.
-    Process(String),
-    /// Read files outside the project under one path.
-    FsRead(String),
-}
-
-/// How a grant is presented (plan 4.2).
-#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub enum Risk {
-    /// Listed on the install page, one confirmation.
-    Low,
-    /// Listed separately with its purpose.
-    Medium,
-    /// Separate dialog: "equivalent to running arbitrary code on this machine".
-    High,
-}
-
-impl Capability {
-    pub fn risk(&self) -> Risk {
-        match self {
-            Self::ProjectRead | Self::EditorRead | Self::Storage | Self::Events | Self::VcsRead => Risk::Low,
-            Self::EditorWrite | Self::VcsWrite | Self::Net(_) | Self::Secrets | Self::InputEvents | Self::Clipboard => {
-                Risk::Medium
-            }
-            Self::Process(_) | Self::FsRead(_) => Risk::High,
-        }
-    }
-
-    /// Low-risk capabilities that the one-time migration of the 0.1 "declared
-    /// means granted" behaviour may grant automatically (plan 4.6).
-    pub fn auto_migrates(&self) -> bool {
-        self.risk() == Risk::Low
-    }
-
-    /// Short user-facing description for install and grant pages.
-    pub fn describe(&self) -> String {
-        match self {
-            Self::ProjectRead => "Read files in the open project".into(),
-            Self::EditorRead => "Read the focused editor's file and selection".into(),
-            Self::EditorWrite => "Change text in the editor".into(),
-            Self::VcsRead => "Read version control state".into(),
-            Self::VcsWrite => "Change version control state (commit, fetch, checkout)".into(),
-            Self::Storage => "Store its own data".into(),
-            Self::Secrets => "Store secrets in the system keychain".into(),
-            Self::Events => "Observe workbench events (files opened, saved, focus)".into(),
-            Self::InputEvents => "Observe keystrokes and editor input".into(),
-            Self::Clipboard => "Read and write the clipboard from its web views".into(),
-            Self::Net(host) => format!("Connect to {host} (from the machine the project is on)"),
-            Self::Process(bin) => format!("Run {bin} — equivalent to running arbitrary code on this machine"),
-            Self::FsRead(path) => format!("Read files under {path}, outside the project"),
-        }
-    }
-
-    /// Whether `self`, granted, also covers `wanted` (`net:*.x.com` covers `net:a.x.com`).
-    pub fn covers(&self, wanted: &Capability) -> bool {
-        match (self, wanted) {
-            (Self::Net(pattern), Self::Net(host)) => host_matches(pattern, host),
-            (Self::FsRead(base), Self::FsRead(path)) => {
-                std::path::Path::new(path).starts_with(std::path::Path::new(base))
-            }
-            _ => self == wanted,
-        }
-    }
-}
-
-/// `example.com` matches exactly; `*.example.com` matches any subdomain (not the apex).
-pub fn host_matches(pattern: &str, host: &str) -> bool {
-    let host = host.trim_end_matches('.').to_ascii_lowercase();
-    let pattern = pattern.to_ascii_lowercase();
-    match pattern.strip_prefix("*.") {
-        Some(suffix) => host.len() > suffix.len() + 1 && host.ends_with(&format!(".{suffix}")),
-        None => host == pattern,
-    }
-}
-
-impl fmt::Display for Capability {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            Self::ProjectRead => f.write_str("project.read"),
-            Self::EditorRead => f.write_str("editor.read"),
-            Self::EditorWrite => f.write_str("editor.write"),
-            Self::VcsRead => f.write_str("vcs.read"),
-            Self::VcsWrite => f.write_str("vcs.write"),
-            Self::Storage => f.write_str("storage"),
-            Self::Secrets => f.write_str("secrets"),
-            Self::Events => f.write_str("events"),
-            Self::InputEvents => f.write_str("events.input"),
-            Self::Clipboard => f.write_str("clipboard"),
-            Self::Net(h) => write!(f, "net:{h}"),
-            Self::Process(b) => write!(f, "process:{b}"),
-            Self::FsRead(p) => write!(f, "fs.read:{p}"),
-        }
-    }
-}
-
-impl FromStr for Capability {
-    type Err = String;
-
-    fn from_str(s: &str) -> Result<Self, String> {
-        let s = s.trim();
-        if let Some((kind, arg)) = s.split_once(':') {
-            let arg = arg.trim();
-            if arg.is_empty() {
-                return Err(format!("capability {s:?} needs a value after ':'"));
-            }
-            return match kind {
-                "net" => {
-                    let host = arg.strip_prefix("*.").unwrap_or(arg);
-                    let valid = !host.is_empty()
-                        && host.len() <= 253
-                        && host.split('.').all(|label| {
-                            !label.is_empty()
-                                && label.len() <= 63
-                                && label.bytes().all(|b| b.is_ascii_alphanumeric() || b == b'-')
-                        });
-                    if valid { Ok(Self::Net(arg.to_ascii_lowercase())) } else { Err(format!("invalid host in {s:?}")) }
-                }
-                "process" => {
-                    if arg.contains(['/', '\\']) && !std::path::Path::new(arg).is_absolute() {
-                        return Err(format!("{s:?}: use a program name or an absolute path"));
-                    }
-                    Ok(Self::Process(arg.to_owned()))
-                }
-                "fs.read" => {
-                    if !std::path::Path::new(arg).is_absolute() && !arg.starts_with('~') {
-                        return Err(format!("{s:?}: use an absolute path (or ~/…)"));
-                    }
-                    Ok(Self::FsRead(arg.to_owned()))
-                }
-                _ => Err(format!("unknown capability {s:?}")),
-            };
-        }
-        Ok(match s {
-            "project.read" | "project-read" => Self::ProjectRead,
-            "editor.read" | "editor-read" => Self::EditorRead,
-            "editor.write" | "editor-write" => Self::EditorWrite,
-            "vcs.read" => Self::VcsRead,
-            "vcs.write" => Self::VcsWrite,
-            "storage" => Self::Storage,
-            "secrets" => Self::Secrets,
-            "events" => Self::Events,
-            "events.input" => Self::InputEvents,
-            "clipboard" => Self::Clipboard,
-            _ => return Err(format!("unknown capability {s:?}")),
-        })
-    }
-}
-
-impl Serialize for Capability {
-    fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
-        s.collect_str(self)
-    }
-}
-
-impl<'de> Deserialize<'de> for Capability {
-    fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error> {
-        String::deserialize(d)?.parse().map_err(serde::de::Error::custom)
-    }
-}
-
-/// A capability as the UI shows it.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub struct CapabilityInfo {
-    /// `project.read`, `net:crates.io`, …
-    pub id: String,
-    pub risk: Risk,
-    pub description: String,
-    /// Declared under `optional`: the plugin runs without it.
-    pub optional: bool,
-    /// Currently granted.
-    pub granted: bool,
-}
-
-impl CapabilityInfo {
-    pub fn new(cap: &Capability, optional: bool, granted: bool) -> Self {
-        Self { id: cap.to_string(), risk: cap.risk(), description: cap.describe(), optional, granted }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn parses_and_prints() {
-        for s in [
-            "project.read",
-            "editor.write",
-            "vcs.write",
-            "storage",
-            "secrets",
-            "events",
-            "events.input",
-            "net:crates.io",
-            "net:*.github.com",
-            "process:cargo",
-        ] {
-            assert_eq!(s.parse::<Capability>().unwrap().to_string(), s);
-        }
-        // Absolute paths are the platform's.
-        let (git, etc) = if cfg!(windows) {
-            (r"process:C:\Program Files\Git\bin\git.exe", r"fs.read:C:\Windows")
-        } else {
-            ("process:/usr/bin/git", "fs.read:/etc")
-        };
-        for s in [git, etc] {
-            assert_eq!(s.parse::<Capability>().unwrap().to_string(), s);
-        }
-        assert_eq!("project-read".parse::<Capability>().unwrap(), Capability::ProjectRead);
-        assert!("net:".parse::<Capability>().is_err());
-        assert!("net:a b".parse::<Capability>().is_err());
-        assert!("process:./evil".parse::<Capability>().is_err());
-        assert!("fs.read:rel".parse::<Capability>().is_err());
-        assert!("network".parse::<Capability>().is_err());
-    }
-
-    #[test]
-    fn risk_levels() {
-        assert_eq!(Capability::ProjectRead.risk(), Risk::Low);
-        assert_eq!(Capability::Net("x".into()).risk(), Risk::Medium);
-        assert_eq!(Capability::InputEvents.risk(), Risk::Medium);
-        assert_eq!("clipboard".parse::<Capability>().unwrap(), Capability::Clipboard);
-        assert_eq!(Capability::Clipboard.risk(), Risk::Medium);
-        assert_eq!(Capability::Process("cargo".into()).risk(), Risk::High);
-        assert!(Capability::Storage.auto_migrates() && !Capability::EditorWrite.auto_migrates());
-    }
-
-    #[test]
-    fn host_patterns() {
-        assert!(host_matches("crates.io", "crates.io"));
-        assert!(host_matches("crates.io", "CRATES.IO."));
-        assert!(!host_matches("crates.io", "static.crates.io"));
-        assert!(host_matches("*.github.com", "api.github.com"));
-        assert!(!host_matches("*.github.com", "github.com"));
-        assert!(!host_matches("*.github.com", "evilgithub.com"));
-        let any_gh: Capability = "net:*.github.com".parse().unwrap();
-        assert!(any_gh.covers(&"net:api.github.com".parse().unwrap()));
-        assert!(Capability::FsRead("/etc".into()).covers(&Capability::FsRead("/etc/hosts".into())));
-        assert!(!Capability::FsRead("/etc".into()).covers(&Capability::FsRead("/etcx".into())));
-    }
-}
@@ -1,104 +0,0 @@
-//! The contribution index: validated UI
-//! declarations of installed packages, kept on disk so start-up does not
-//! validate them again (sanitising thousands of icon SVGs, say).
-//!
-//! Only packages with a [`Package::digest`] are indexed: installed copies,
-//! which the host never modifies after install. An entry is keyed by that
-//! digest, the extension point, the declaration and a salt naming the
-//! validation logic (the IDE version), so a new package version, a changed
-//! declaration or an IDE upgrade simply misses. A miss or an unreadable entry
-//! only costs the validation.
-
-use crate::point::Package;
-use crate::ui::UiDecl;
-use std::collections::BTreeSet;
-use std::path::PathBuf;
-
-/// Bumped when [`UiDecl`]'s serialized shape changes.
-const FORMAT: u32 = 1;
-
-pub struct ContributionIndex {
-    dir: PathBuf,
-    salt: String,
-}
-
-impl ContributionIndex {
-    /// `salt` names the validators' version (the IDE version).
-    pub fn new(dir: PathBuf, salt: &str) -> Self {
-        Self { dir, salt: format!("{FORMAT}:{salt}") }
-    }
-
-    /// Entries start with a prefix of the package digest, for pruning.
-    fn file(&self, digest: &str, point: &str, decl: &toml::Value) -> PathBuf {
-        let mut h = blake3::Hasher::new();
-        for part in [self.salt.as_str(), digest, point, &decl.to_string()] {
-            h.update(part.as_bytes());
-            h.update(&[0]);
-        }
-        let key = h.finalize().to_hex();
-        self.dir.join(format!("{}-{}.json", prefix(digest), &key[..32]))
-    }
-
-    pub fn get(&self, pkg: &Package, point: &str, decl: &toml::Value) -> Option<UiDecl> {
-        let digest = pkg.digest.as_deref()?;
-        let bytes = std::fs::read(self.file(digest, point, decl)).ok()?;
-        serde_json::from_slice(&bytes).ok()
-    }
-
-    pub fn put(&self, pkg: &Package, point: &str, decl: &toml::Value, ui: &UiDecl) {
-        let Some(digest) = pkg.digest.as_deref() else { return };
-        let Ok(bytes) = serde_json::to_vec(ui) else { return };
-        let file = self.file(digest, point, decl);
-        let _ = std::fs::create_dir_all(&self.dir);
-        let tmp = file.with_extension(format!("tmp{}", std::process::id()));
-        if std::fs::write(&tmp, bytes).and_then(|()| std::fs::rename(&tmp, &file)).is_err() {
-            let _ = std::fs::remove_file(&tmp);
-        }
-    }
-
-    /// Removes entries of packages other than `live` (digests).
-    pub fn prune<'a>(&self, live: impl IntoIterator<Item = &'a str>) {
-        let keep: BTreeSet<String> = live.into_iter().map(|d| prefix(d).to_owned()).collect();
-        let Ok(entries) = std::fs::read_dir(&self.dir) else { return };
-        for e in entries.flatten() {
-            let name = e.file_name().to_string_lossy().into_owned();
-            if !name.split_once('-').is_some_and(|(p, _)| keep.contains(p)) {
-                let _ = std::fs::remove_file(e.path());
-            }
-        }
-    }
-}
-
-fn prefix(digest: &str) -> &str {
-    let d = digest.strip_prefix("blake3:").unwrap_or(digest);
-    let end = d.char_indices().nth(16).map_or(d.len(), |(i, _)| i);
-    &d[..end]
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::manifest::Manifest;
-
-    #[test]
-    fn hits_only_the_same_package_point_declaration_and_salt() {
-        let tmp = tempfile::tempdir().unwrap();
-        let index = ContributionIndex::new(tmp.path().join("idx"), "1.0");
-        let manifest =
-            Manifest::parse("id = \"p\"\nname = \"P\"\nversion = \"1.0.0\"\nengines.openidea = \"^1.0\"\n").unwrap();
-        let pkg = Package::new(manifest, tmp.path().to_path_buf()).with_digest("blake3:00aa11bb22cc33dd44ee");
-        let decl: toml::Value = toml::from_str("id = \"x\"").unwrap();
-        let ui = UiDecl::new("x", "X", serde_json::json!({ "id": "x" }));
-        assert!(index.get(&pkg, "pt", &decl).is_none());
-        index.put(&pkg, "pt", &decl, &ui);
-        assert_eq!(index.get(&pkg, "pt", &decl).unwrap().label, "X");
-        assert!(index.get(&pkg, "other", &decl).is_none());
-        assert!(index.get(&pkg, "pt", &toml::from_str("id = \"y\"").unwrap()).is_none());
-        assert!(ContributionIndex::new(tmp.path().join("idx"), "1.1").get(&pkg, "pt", &decl).is_none());
-        let unhashed = Package { digest: None, ..pkg.clone() };
-        assert!(index.get(&unhashed, "pt", &decl).is_none(), "not an installed copy");
-
-        index.prune(["blake3:ffff"]);
-        assert!(index.get(&pkg, "pt", &decl).is_none());
-    }
-}
@@ -1,483 +0,0 @@
-//! The grant ledger (plan 4.6): which capabilities the user granted to which
-//! plugin, saved as `grants.json` next to the installed plugins.
-//!
-//! - Installed plugins are keyed by id and remember the version and package
-//!   hash they were confirmed for. An update that needs no new capability is
-//!   accepted silently; one that does must be confirmed again.
-//! - Linked development plugins and project plugins (`.openidea/plugins/*`)
-//!   are keyed by their directory, not by hash, so rebuilding does not ask
-//!   again; new capabilities still do.
-//! - `process:<program>` grants record the program's absolute path and file
-//!   hash at grant time. Calls use that path, never a `PATH` lookup, and fail
-//!   when the file changed (re-confirmation needed).
-
-use crate::capability::{Capability, Risk};
-use serde::{Deserialize, Serialize};
-use std::collections::{BTreeMap, BTreeSet};
-use std::ffi::OsStr;
-use std::path::{Path, PathBuf};
-
-pub const LEDGER_FILE: &str = "grants.json";
-const FORMAT: u32 = 1;
-
-/// Whose grant an entry is.
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
-#[serde(tag = "kind", content = "value", rename_all = "camelCase")]
-pub enum Subject {
-    /// Installed under the plugins directory, by plugin id.
-    Installed(String),
-    /// A linked development plugin or a project plugin, by package directory.
-    Path(PathBuf),
-}
-
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct BinaryGrant {
-    pub path: PathBuf,
-    /// blake3 of the file when granted.
-    pub hash: String,
-}
-
-#[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct Grant {
-    pub plugin_id: String,
-    /// The version and package hash the user confirmed (installed plugins).
-    #[serde(default)]
-    pub version: String,
-    #[serde(default)]
-    pub package_hash: String,
-    /// The user confirmed the plugin (the install page or the project-plugin prompt).
-    #[serde(default)]
-    pub confirmed: bool,
-    /// Granted capabilities (`project.read`, `net:x`, …).
-    #[serde(default)]
-    pub granted: BTreeSet<String>,
-    /// Optional capabilities the user declined (not asked again until re-confirmed).
-    #[serde(default)]
-    pub declined: BTreeSet<String>,
-    /// `process:<program>` → the program confirmed for it.
-    #[serde(default)]
-    pub binaries: BTreeMap<String, BinaryGrant>,
-    /// Migrated from 0.1: capabilities not granted yet are asked for on first
-    /// use instead of blocking the plugin from loading.
-    #[serde(default)]
-    pub ask_on_use: bool,
-}
-
-impl Grant {
-    pub fn has(&self, cap: &Capability) -> bool {
-        self.granted.iter().filter_map(|s| s.parse::<Capability>().ok()).any(|g| g.covers(cap))
-    }
-}
-
-/// What a plugin (in its current form) needs, to compare with its grant.
-#[derive(Clone, Debug)]
-pub struct Request<'a> {
-    pub subject: Subject,
-    pub plugin_id: &'a str,
-    pub version: &'a str,
-    pub package_hash: &'a str,
-    pub required: Vec<Capability>,
-    pub optional: Vec<Capability>,
-}
-
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub enum Decision {
-    /// Load with these capabilities. `pending` required ones are asked for when
-    /// the plugin is first used (plugins migrated from 0.1 only).
-    Allowed { granted: Vec<Capability>, pending: Vec<Capability> },
-    /// Ask the user first. `new` lists what was never granted (all of it on first use).
-    NeedsConfirmation { new: Vec<Capability>, first_time: bool },
-}
-
-#[derive(Debug, Default, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-struct File {
-    #[serde(default)]
-    format: u32,
-    /// The one-time migration from 0.1 ("declared means granted") ran.
-    #[serde(default)]
-    migrated: bool,
-    #[serde(default)]
-    grants: Vec<(Subject, Grant)>,
-}
-
-/// The ledger, loaded into memory; [`Ledger::save`] writes it atomically.
-#[derive(Debug, Default)]
-pub struct Ledger {
-    path: Option<PathBuf>,
-    migrated: bool,
-    grants: BTreeMap<Subject, Grant>,
-}
-
-impl Ledger {
-    /// Loads `<dir>/grants.json`; a missing or unreadable file gives an empty
-    /// ledger with `needs_migration()` true.
-    pub fn load(dir: &Path) -> Self {
-        let path = dir.join(LEDGER_FILE);
-        let file: Option<File> = std::fs::read_to_string(&path).ok().and_then(|s| match serde_json::from_str(&s) {
-            Ok(f) => Some(f),
-            Err(e) => {
-                tracing::warn!("{}: {e}; starting with an empty grant ledger", path.display());
-                None
-            }
-        });
-        let existed = file.is_some();
-        let file = file.unwrap_or_default();
-        Self { path: Some(path), migrated: file.migrated || existed, grants: file.grants.into_iter().collect() }
-    }
-
-    pub fn in_memory() -> Self {
-        Self { path: None, migrated: true, grants: BTreeMap::new() }
-    }
-
-    pub fn save(&self) -> std::io::Result<()> {
-        let Some(path) = &self.path else { return Ok(()) };
-        let file = File {
-            format: FORMAT,
-            migrated: self.migrated,
-            grants: self.grants.iter().map(|(s, g)| (s.clone(), g.clone())).collect(),
-        };
-        let json = serde_json::to_string_pretty(&file).map_err(std::io::Error::other)?;
-        let tmp = path.with_extension("json.tmp");
-        std::fs::write(&tmp, json)?;
-        std::fs::rename(&tmp, path)
-    }
-
-    pub fn get(&self, subject: &Subject) -> Option<&Grant> {
-        self.grants.get(subject)
-    }
-
-    pub fn remove(&mut self, subject: &Subject) -> Option<Grant> {
-        self.grants.remove(subject)
-    }
-
-    /// Puts back an earlier state of `subject`'s grant (`None`: none), e.g.
-    /// after rolling back an update.
-    pub fn restore(&mut self, subject: &Subject, grant: Option<Grant>) {
-        match grant {
-            Some(g) => {
-                self.grants.insert(subject.clone(), g);
-            }
-            None => {
-                self.grants.remove(subject);
-            }
-        }
-    }
-
-    /// The one-time migration of 0.1's "declared means granted" has not run yet.
-    pub fn needs_migration(&self) -> bool {
-        !self.migrated
-    }
-
-    /// Migrates plugins installed before the ledger existed: low-risk
-    /// capabilities are granted, the rest are asked on first use.
-    pub fn migrate(&mut self, installed: &[Request<'_>]) {
-        for req in installed {
-            let granted: BTreeSet<String> =
-                req.required.iter().chain(&req.optional).filter(|c| c.auto_migrates()).map(|c| c.to_string()).collect();
-            self.grants.entry(req.subject.clone()).or_insert_with(|| Grant {
-                plugin_id: req.plugin_id.to_owned(),
-                version: req.version.to_owned(),
-                package_hash: req.package_hash.to_owned(),
-                confirmed: true,
-                granted,
-                ask_on_use: true,
-                ..Grant::default()
-            });
-        }
-        self.migrated = true;
-    }
-
-    /// Compares what the plugin needs with what was granted.
-    pub fn decide(&mut self, req: &Request<'_>) -> Decision {
-        let Some(grant) = self.grants.get_mut(&req.subject) else {
-            return Decision::NeedsConfirmation { new: req.required.clone(), first_time: true };
-        };
-        if !grant.confirmed {
-            return Decision::NeedsConfirmation { new: req.required.clone(), first_time: true };
-        }
-        let new: Vec<Capability> = req.required.iter().filter(|c| !grant.has(c)).cloned().collect();
-        if !new.is_empty() && !grant.ask_on_use {
-            return Decision::NeedsConfirmation { new, first_time: false };
-        }
-        // Same or fewer needs: accept an update silently (plan 4.6).
-        if grant.version != req.version || grant.package_hash != req.package_hash {
-            grant.version = req.version.to_owned();
-            grant.package_hash = req.package_hash.to_owned();
-        }
-        let granted = req.required.iter().chain(&req.optional).filter(|c| grant.has(c)).cloned().collect();
-        Decision::Allowed { granted, pending: new }
-    }
-
-    /// Records the user's confirmation: `required` plus the accepted optional capabilities.
-    pub fn confirm(
-        &mut self,
-        req: &Request<'_>,
-        accepted_optional: &[Capability],
-        binaries: BTreeMap<String, BinaryGrant>,
-    ) {
-        let grant = self.grants.entry(req.subject.clone()).or_default();
-        grant.plugin_id = req.plugin_id.to_owned();
-        grant.version = req.version.to_owned();
-        grant.package_hash = req.package_hash.to_owned();
-        grant.confirmed = true;
-        grant.ask_on_use = false;
-        for cap in req.required.iter().chain(accepted_optional) {
-            grant.granted.insert(cap.to_string());
-        }
-        for cap in &req.optional {
-            let s = cap.to_string();
-            if accepted_optional.contains(cap) {
-                grant.declined.remove(&s);
-            } else if !grant.granted.contains(&s) {
-                grant.declined.insert(s);
-            }
-        }
-        grant.binaries.extend(binaries);
-    }
-
-    /// Grants or revokes one capability (Settings › Plugins › permissions).
-    pub fn set(&mut self, subject: &Subject, cap: &Capability, granted: bool) -> bool {
-        let Some(grant) = self.grants.get_mut(subject) else { return false };
-        let s = cap.to_string();
-        if granted {
-            grant.declined.remove(&s);
-            grant.granted.insert(s)
-        } else {
-            if let Capability::Process(_) = cap {
-                grant.binaries.remove(&s);
-            }
-            grant.granted.remove(&s)
-        }
-    }
-
-    /// Records the program approved for a `process:` grant.
-    pub fn set_binary(&mut self, subject: &Subject, cap: &Capability, binary: BinaryGrant) {
-        if let Some(grant) = self.grants.get_mut(subject) {
-            grant.binaries.insert(cap.to_string(), binary);
-        }
-    }
-
-    /// Checks a `process:` grant at call time: the program confirmed for it,
-    /// unchanged since. Errors name what to do.
-    pub fn check_binary(&self, subject: &Subject, cap: &Capability) -> Result<PathBuf, String> {
-        let Capability::Process(name) = cap else { return Err(format!("{cap} is not a process capability")) };
-        let grant = self.grants.get(subject).ok_or_else(|| format!("{cap} was not granted"))?;
-        let key = cap.to_string();
-        if !grant.granted.contains(&key) {
-            return Err(format!("{cap} was not granted"));
-        }
-        let bin = grant.binaries.get(&key).ok_or_else(|| format!("{cap}: no program was confirmed for {name}"))?;
-        match file_hash(&bin.path) {
-            Ok(hash) if hash == bin.hash => Ok(bin.path.clone()),
-            Ok(_) => Err(format!(
-                "{} changed since it was approved for {cap}; confirm the plugin's permissions again",
-                bin.path.display()
-            )),
-            Err(e) => Err(format!("{}: {e}; confirm the plugin's permissions again", bin.path.display())),
-        }
-    }
-
-    /// The program approved for a granted `process:` capability, without
-    /// checking the file: whoever starts it verifies the hash then
-    /// ([`check_binary`](Self::check_binary) or the pin's own check).
-    pub fn pinned_binary(&self, subject: &Subject, cap: &Capability) -> Option<BinaryGrant> {
-        let grant = self.grants.get(subject)?;
-        let key = cap.to_string();
-        if !grant.granted.contains(&key) {
-            return None;
-        }
-        grant.binaries.get(&key).cloned()
-    }
-
-    pub fn subjects(&self) -> impl Iterator<Item = (&Subject, &Grant)> {
-        self.grants.iter()
-    }
-}
-
-/// What a confirmation page shows: every capability with its risk, high risk first.
-pub fn by_risk(caps: &[Capability]) -> Vec<(Risk, Vec<Capability>)> {
-    let mut groups: BTreeMap<std::cmp::Reverse<Risk>, Vec<Capability>> = BTreeMap::new();
-    for c in caps {
-        groups.entry(std::cmp::Reverse(c.risk())).or_default().push(c.clone());
-    }
-    groups.into_iter().map(|(r, v)| (r.0, v)).collect()
-}
-
-/// Resolves a `process:` program to an absolute path once, at grant time:
-/// absolute names are taken as is, others are looked up in `path_var`.
-pub fn resolve_program(name: &str, path_var: Option<&OsStr>) -> Result<PathBuf, String> {
-    let candidate = Path::new(name);
-    if candidate.is_absolute() {
-        return if candidate.is_file() { Ok(candidate.to_path_buf()) } else { Err(format!("{name}: no such program")) };
-    }
-    let exts: Vec<String> = if cfg!(windows) {
-        std::env::var("PATHEXT").unwrap_or_else(|_| ".EXE;.CMD;.BAT".into()).split(';').map(str::to_owned).collect()
-    } else {
-        vec![String::new()]
-    };
-    for dir in std::env::split_paths(path_var.unwrap_or_default()) {
-        if !dir.is_absolute() {
-            continue; // `.` or relative entries could point into the project
-        }
-        for ext in &exts {
-            let p = dir.join(format!("{name}{ext}"));
-            if is_executable(&p) {
-                return Ok(dunce_canonical(&p));
-            }
-        }
-    }
-    Err(format!("{name} was not found on PATH"))
-}
-
-fn dunce_canonical(p: &Path) -> PathBuf {
-    std::fs::canonicalize(p).unwrap_or_else(|_| p.to_path_buf())
-}
-
-fn is_executable(p: &Path) -> bool {
-    let Ok(meta) = std::fs::metadata(p) else { return false };
-    if !meta.is_file() {
-        return false;
-    }
-    #[cfg(unix)]
-    {
-        use std::os::unix::fs::PermissionsExt;
-        meta.permissions().mode() & 0o111 != 0
-    }
-    #[cfg(not(unix))]
-    true
-}
-
-/// blake3 of a file, hex.
-pub fn file_hash(path: &Path) -> std::io::Result<String> {
-    let mut hasher = blake3::Hasher::new();
-    hasher.update_reader(std::fs::File::open(path)?)?;
-    Ok(hasher.finalize().to_hex().to_string())
-}
-
-/// blake3 over a package's files (sorted relative paths and contents).
-pub fn package_hash(dir: &Path, files: &[PathBuf]) -> std::io::Result<String> {
-    let mut sorted: Vec<&PathBuf> = files.iter().collect();
-    sorted.sort();
-    sorted.dedup();
-    let mut hasher = blake3::Hasher::new();
-    for rel in sorted {
-        hasher.update(rel.to_string_lossy().as_bytes());
-        hasher.update(&[0]);
-        hasher.update_reader(std::fs::File::open(dir.join(rel))?)?;
-        hasher.update(&[0]);
-    }
-    Ok(hasher.finalize().to_hex().to_string())
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    fn caps(list: &[&str]) -> Vec<Capability> {
-        list.iter().map(|s| s.parse().unwrap()).collect()
-    }
-
-    fn req<'a>(version: &'a str, hash: &'a str, required: &[&str], optional: &[&str]) -> Request<'a> {
-        Request {
-            subject: Subject::Installed("p".into()),
-            plugin_id: "p",
-            version,
-            package_hash: hash,
-            required: caps(required),
-            optional: caps(optional),
-        }
-    }
-
-    #[test]
-    fn confirmation_then_silent_update_then_reconfirm_on_new_capability() {
-        let mut l = Ledger::in_memory();
-        let r1 = req("1.0.0", "h1", &["project.read"], &["net:crates.io"]);
-        assert_eq!(l.decide(&r1), Decision::NeedsConfirmation { new: caps(&["project.read"]), first_time: true });
-        l.confirm(&r1, &[], BTreeMap::new());
-        assert_eq!(
-            l.decide(&r1),
-            Decision::Allowed { granted: caps(&["project.read"]), pending: vec![] },
-            "declined optional"
-        );
-        assert!(l.get(&r1.subject).unwrap().declined.contains("net:crates.io"));
-
-        // Same needs, new version: silent.
-        let r2 = req("1.1.0", "h2", &["project.read"], &["net:crates.io"]);
-        assert!(matches!(l.decide(&r2), Decision::Allowed { .. }));
-        assert_eq!(l.get(&r2.subject).unwrap().version, "1.1.0");
-
-        // A new required capability: ask again, only for it.
-        let r3 = req("1.2.0", "h3", &["project.read", "editor.write"], &[]);
-        assert_eq!(l.decide(&r3), Decision::NeedsConfirmation { new: caps(&["editor.write"]), first_time: false });
-        l.confirm(&r3, &[], BTreeMap::new());
-        assert!(matches!(l.decide(&r3), Decision::Allowed { .. }));
-
-        // Revoking a required capability blocks loading again.
-        assert!(l.set(&r3.subject, &Capability::EditorWrite, false));
-        assert!(matches!(l.decide(&r3), Decision::NeedsConfirmation { .. }));
-    }
-
-    #[test]
-    fn migration_grants_low_risk_only() {
-        let tmp = tempfile::tempdir().unwrap();
-        let mut l = Ledger::load(tmp.path());
-        assert!(l.needs_migration());
-        let r = req("0.1.0", "h", &["project.read", "editor.write"], &[]);
-        l.migrate(std::slice::from_ref(&r));
-        // Loads with the low-risk part; the rest is asked for on first use.
-        assert_eq!(
-            l.decide(&r),
-            Decision::Allowed { granted: caps(&["project.read"]), pending: caps(&["editor.write"]) }
-        );
-        l.confirm(&r, &[], BTreeMap::new());
-        assert_eq!(
-            l.decide(&r),
-            Decision::Allowed { granted: caps(&["project.read", "editor.write"]), pending: vec![] }
-        );
-        l.save().unwrap();
-        let again = Ledger::load(tmp.path());
-        assert!(!again.needs_migration());
-        assert!(again.get(&r.subject).unwrap().has(&Capability::ProjectRead));
-    }
-
-    #[cfg(unix)]
-    #[test]
-    fn binaries_are_pinned_by_path_and_hash() {
-        use std::os::unix::fs::PermissionsExt;
-        let tmp = tempfile::tempdir().unwrap();
-        let bin_dir = tmp.path().join("bin");
-        std::fs::create_dir(&bin_dir).unwrap();
-        let tool = bin_dir.join("tool");
-        std::fs::write(&tool, "#!/bin/sh\necho v1\n").unwrap();
-        std::fs::set_permissions(&tool, std::fs::Permissions::from_mode(0o755)).unwrap();
-        let path_var = std::env::join_paths([PathBuf::from("relative"), bin_dir.clone()]).unwrap();
-        let resolved = resolve_program("tool", Some(&path_var)).unwrap();
-        assert!(resolved.is_absolute());
-        assert!(resolve_program("missing", Some(&path_var)).is_err());
-
-        let mut l = Ledger::in_memory();
-        let r = req("1.0.0", "h", &["process:tool"], &[]);
-        let cap: Capability = "process:tool".parse().unwrap();
-        let bin = BinaryGrant { path: resolved.clone(), hash: file_hash(&resolved).unwrap() };
-        l.confirm(&r, &[], [(cap.to_string(), bin)].into());
-        assert_eq!(l.check_binary(&r.subject, &cap).unwrap(), resolved);
-        std::fs::write(&tool, "#!/bin/sh\necho evil\n").unwrap();
-        assert!(l.check_binary(&r.subject, &cap).unwrap_err().contains("changed"));
-    }
-
-    #[test]
-    fn hashes_and_grouping() {
-        let tmp = tempfile::tempdir().unwrap();
-        std::fs::write(tmp.path().join("a"), "1").unwrap();
-        std::fs::write(tmp.path().join("b"), "2").unwrap();
-        let h1 = package_hash(tmp.path(), &["a".into(), "b".into()]).unwrap();
-        assert_eq!(h1, package_hash(tmp.path(), &["b".into(), "a".into()]).unwrap());
-        std::fs::write(tmp.path().join("b"), "3").unwrap();
-        assert_ne!(h1, package_hash(tmp.path(), &["a".into(), "b".into()]).unwrap());
-        let groups = by_risk(&caps(&["storage", "process:git", "net:x.io"]));
-        assert_eq!(groups.iter().map(|g| g.0).collect::<Vec<_>>(), [Risk::High, Risk::Medium, Risk::Low]);
-    }
-}
@@ -1,36 +0,0 @@
-//! The plugin system's kernel, independent of the Wasm runtime:
-//!
-//! - [`Manifest`]: `plugin.toml` (0.2 format; 0.1 still parses);
-//! - [`Capability`]: what a plugin may do, with its [`Risk`] level;
-//! - [`ExtensionPoint`]: one kind of contribution, implemented by the crate that
-//!   owns the feature; [`ExtensionRegistry`] validates a package's declarations
-//!   ([`ExtensionRegistry::prepare`], no side effects), makes them take effect
-//!   all or nothing ([`ExtensionRegistry::commit`]) and withdraws them per plugin;
-//! - [`UiStore`] / [`UiPoint`]: UI contributions, validated here and projected
-//!   by the client without the possibility to fail;
-//! - [`ledger`]: which capabilities the user granted to which plugin;
-//! - [`package`]: the package file, its signature and the marketplace index.
-//!
-//! Dependency direction: `ide-core` ← `ide-extension` ← feature crates (their
-//! extension points) and `ide-plugin` (Wasm) ← `ide-host` (assembly).
-
-mod capability;
-mod index;
-pub mod ledger;
-mod manifest;
-pub mod package;
-mod point;
-mod registry;
-mod ui;
-mod when;
-
-pub use capability::{Capability, CapabilityInfo, Risk, host_matches};
-pub use index::ContributionIndex;
-pub use manifest::{
-    ActivationEvent, Capabilities, ENGINE_VERSION, EVENT_KINDS, LEGACY_API, MANIFEST_FILE, Manifest, check_relative,
-    engine_compatible, validate_item_id, validate_plugin_id, validate_point_id,
-};
-pub use point::{Commit, Disposable, ExtensionPoint, MAX_PACKAGE_FILE, Package, Placement, Prepared, decode};
-pub use registry::{ContributionInfo, ExtensionRegistry, PreparedSet};
-pub use ui::{UiContribution, UiDecl, UiPoint, UiStore, to_json};
-pub use when::validate_when;
@@ -1,501 +0,0 @@
-//! `plugin.toml`, the package manifest (plan 4.4).
-//!
-//! ```toml
-//! id = "acme.rust-tools"          # optional publisher namespace before the first '.'
-//! name = "Rust Tools"
-//! version = "1.2.0"
-//! engines.openidea = "^1.0"
-//! wasm = "plugin.wasm"
-//! activation = ["on-language:rust", "on-command:check"]
-//!
-//! [capabilities]
-//! required = ["project.read", "editor.write"]
-//! optional = ["net:crates.io", "process:cargo"]
-//!
-//! [[contributes.commands]]
-//! id = "check"
-//! title = "Check"
-//! ```
-//!
-//! `contributes` is kept as raw TOML: each `contributes.<point>` is parsed and
-//! validated by the extension point registered under that id
-//! ([`crate::ExtensionRegistry`]), so new contribution types need no change here.
-//!
-//! Manifests in the 0.1 format (`openidea-api = "0.1"`, `permissions = [...]`)
-//! still parse: permissions become required capabilities and the plugin is
-//! activated at start-up, as before.
-
-use crate::capability::Capability;
-use serde::Deserialize;
-use std::collections::BTreeSet;
-use std::path::{Component, Path, PathBuf};
-
-pub const MANIFEST_FILE: &str = "plugin.toml";
-/// The plugin API (engine) version this host implements.
-pub const ENGINE_VERSION: &str = "1.0.0";
-/// The 0.1 API, still accepted for contribution-only packages and 0.1 components.
-pub const LEGACY_API: &str = "0.1";
-
-#[derive(Clone, Debug, PartialEq)]
-pub struct Manifest {
-    pub id: String,
-    pub name: String,
-    pub version: String,
-    pub description: String,
-    pub authors: Vec<String>,
-    pub homepage: Option<String>,
-    pub license: Option<String>,
-    /// Release notes of this version (Settings › Plugins › What's New).
-    pub change_notes: Option<String>,
-    /// `engines.openidea` (a semver requirement), or the legacy `openidea-api`.
-    pub engine: String,
-    /// Written in the 0.1 format.
-    pub legacy: bool,
-    /// Component file relative to the package directory.
-    pub wasm: Option<PathBuf>,
-    pub activation: Vec<ActivationEvent>,
-    pub capabilities: Capabilities,
-    /// `contributes.<point>` → its declarations, validated by the extension points.
-    pub contributes: toml::Table,
-}
-
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
-pub struct Capabilities {
-    pub required: Vec<Capability>,
-    pub optional: Vec<Capability>,
-}
-
-impl Capabilities {
-    pub fn all(&self) -> impl Iterator<Item = &Capability> {
-        self.required.iter().chain(&self.optional)
-    }
-
-    pub fn is_optional(&self, cap: &Capability) -> bool {
-        self.optional.contains(cap) && !self.required.contains(cap)
-    }
-}
-
-/// When a plugin's code is instantiated (plan 4.4). Contributions are live
-/// without it; code only runs once one of these fires.
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub enum ActivationEvent {
-    /// One of the plugin's commands is run (`on-command:<id>`; `*` = any).
-    Command(String),
-    /// A file of this language is opened.
-    Language(String),
-    /// A file matching this glob (project-relative) is opened.
-    File(String),
-    /// One of the plugin's views is shown.
-    View(String),
-    /// Periodically: `on-schedule:<seconds>`. Does not keep the plugin alive.
-    Schedule(u32),
-    /// A workbench event of this kind (`on-event:file-saved`): the plugin is
-    /// subscribed from the start, and activated to receive it.
-    Event(String),
-    /// Shortly after the workbench is ready.
-    StartupFinished,
-}
-
-impl ActivationEvent {
-    pub fn parse(s: &str) -> Result<Self, String> {
-        let s = s.trim();
-        if s == "on-startup-finished" {
-            return Ok(Self::StartupFinished);
-        }
-        let (kind, arg) = s.split_once(':').ok_or_else(|| format!("unknown activation event {s:?}"))?;
-        let arg = arg.trim();
-        if arg.is_empty() {
-            return Err(format!("activation event {s:?} needs a value"));
-        }
-        Ok(match kind {
-            "on-command" => Self::Command(arg.into()),
-            "on-language" => Self::Language(arg.into()),
-            "on-file" => Self::File(arg.into()),
-            "on-view" => Self::View(arg.into()),
-            "on-schedule" => {
-                let secs: u32 =
-                    arg.trim_end_matches('s').parse().map_err(|_| format!("{s:?}: expected seconds, e.g. 300"))?;
-                if secs < 60 {
-                    return Err(format!("{s:?}: the shortest schedule is 60 seconds"));
-                }
-                Self::Schedule(secs)
-            }
-            "on-event" => {
-                if !EVENT_KINDS.contains(&arg) {
-                    return Err(format!("{s:?}: unknown event kind (one of {})", EVENT_KINDS.join(", ")));
-                }
-                Self::Event(arg.into())
-            }
-            _ => return Err(format!("unknown activation event {s:?}")),
-        })
-    }
-}
-
-/// Workbench event kinds (`on-event:<kind>`, WIT `events.event-kind`).
-/// `scheduled` comes from `on-schedule` instead.
-pub const EVENT_KINDS: &[&str] = &["file-opened", "file-saved", "editor-focused", "action-performed", "vcs-changed"];
-
-impl std::fmt::Display for ActivationEvent {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            Self::Command(c) => write!(f, "on-command:{c}"),
-            Self::Language(l) => write!(f, "on-language:{l}"),
-            Self::File(g) => write!(f, "on-file:{g}"),
-            Self::View(v) => write!(f, "on-view:{v}"),
-            Self::Schedule(s) => write!(f, "on-schedule:{s}"),
-            Self::Event(k) => write!(f, "on-event:{k}"),
-            Self::StartupFinished => f.write_str("on-startup-finished"),
-        }
-    }
-}
-
-#[derive(Deserialize)]
-#[serde(rename_all = "kebab-case", deny_unknown_fields)]
-struct Raw {
-    id: String,
-    name: String,
-    version: String,
-    #[serde(default)]
-    description: String,
-    #[serde(default)]
-    authors: Vec<String>,
-    #[serde(default)]
-    homepage: Option<String>,
-    #[serde(default)]
-    license: Option<String>,
-    #[serde(default)]
-    change_notes: Option<String>,
-    #[serde(default)]
-    engines: Option<Engines>,
-    /// 0.1 format.
-    #[serde(default)]
-    openidea_api: Option<String>,
-    #[serde(default)]
-    wasm: Option<PathBuf>,
-    #[serde(default)]
-    activation: Option<Vec<String>>,
-    #[serde(default)]
-    capabilities: Option<RawCapabilities>,
-    /// 0.1 format.
-    #[serde(default)]
-    permissions: Option<Vec<String>>,
-    #[serde(default)]
-    contributes: toml::Table,
-}
-
-#[derive(Deserialize)]
-#[serde(deny_unknown_fields)]
-struct Engines {
-    openidea: String,
-}
-
-#[derive(Deserialize)]
-#[serde(deny_unknown_fields)]
-struct RawCapabilities {
-    #[serde(default)]
-    required: Vec<String>,
-    #[serde(default)]
-    optional: Vec<String>,
-}
-
-impl Manifest {
-    pub fn parse(src: &str) -> Result<Self, String> {
-        let raw: Raw = toml::from_str(src).map_err(|e| e.to_string())?;
-        let (engine, legacy) = match (raw.engines, raw.openidea_api) {
-            (Some(e), None) => (e.openidea, false),
-            (None, Some(api)) => (api, true),
-            (Some(_), Some(_)) => return Err("use `engines.openidea`, not `openidea-api`".into()),
-            (None, None) => return Err("missing `engines.openidea` (e.g. \"^1.0\")".into()),
-        };
-        if legacy && raw.capabilities.is_some() {
-            return Err("`capabilities` requires `engines.openidea`; 0.1 manifests use `permissions`".into());
-        }
-        if !legacy && raw.permissions.is_some() {
-            return Err("`permissions` is the 0.1 format; use `[capabilities] required = [...]`".into());
-        }
-        let parse_caps = |list: Vec<String>| -> Result<Vec<Capability>, String> {
-            let mut out: Vec<Capability> = Vec::new();
-            for s in list {
-                let cap: Capability = s.parse()?;
-                if !out.contains(&cap) {
-                    out.push(cap);
-                }
-            }
-            Ok(out)
-        };
-        let capabilities = match (raw.capabilities, raw.permissions) {
-            (Some(c), _) => Capabilities { required: parse_caps(c.required)?, optional: parse_caps(c.optional)? },
-            (None, Some(p)) => Capabilities { required: parse_caps(p)?, optional: Vec::new() },
-            (None, None) => Capabilities::default(),
-        };
-        let activation = match raw.activation {
-            Some(list) => list.iter().map(|s| ActivationEvent::parse(s)).collect::<Result<Vec<_>, _>>()?,
-            // 0.1 plugins were activated at start-up; keep that until they move to 1.0.
-            None if legacy && raw.wasm.is_some() => vec![ActivationEvent::StartupFinished],
-            None => Vec::new(),
-        };
-        let m = Manifest {
-            id: raw.id,
-            name: raw.name,
-            version: raw.version,
-            description: raw.description,
-            authors: raw.authors,
-            homepage: raw.homepage,
-            license: raw.license,
-            change_notes: raw.change_notes,
-            engine,
-            legacy,
-            wasm: raw.wasm,
-            activation,
-            capabilities,
-            contributes: raw.contributes,
-        };
-        m.validate()?;
-        Ok(m)
-    }
-
-    pub fn load(dir: &Path) -> Result<Self, String> {
-        let path = dir.join(MANIFEST_FILE);
-        let src = std::fs::read_to_string(&path).map_err(|e| format!("{}: {e}", path.display()))?;
-        Self::parse(&src).map_err(|e| format!("{}: {e}", path.display()))
-    }
-
-    fn validate(&self) -> Result<(), String> {
-        validate_plugin_id(&self.id)?;
-        if self.name.trim().is_empty() {
-            return Err("`name` must not be empty".into());
-        }
-        if semver::Version::parse(&self.version).is_err() {
-            return Err(format!("`version` must be a semantic version like 1.2.3, got {:?}", self.version));
-        }
-        if !engine_compatible(&self.engine, self.legacy) {
-            return Err(if self.legacy {
-                format!(
-                    "unsupported openidea-api {:?} (this IDE implements {LEGACY_API} and {ENGINE_VERSION})",
-                    self.engine
-                )
-            } else {
-                format!("engines.openidea {:?} does not match this IDE's plugin API {ENGINE_VERSION}", self.engine)
-            });
-        }
-        if let Some(wasm) = &self.wasm {
-            check_relative(wasm, "wasm")?;
-        }
-        if self.wasm.is_none() && !self.activation.is_empty() {
-            return Err("`activation` needs `wasm`: there is no code to activate".into());
-        }
-        let mut seen = BTreeSet::new();
-        for event in &self.activation {
-            if !seen.insert(event) {
-                return Err(format!("duplicate activation event {event}"));
-            }
-        }
-        for (point, decls) in &self.contributes {
-            validate_point_id(point)?;
-            if !matches!(decls, toml::Value::Array(_) | toml::Value::Table(_)) {
-                return Err(format!("`contributes.{point}` must be a table or an array of tables"));
-            }
-        }
-        Ok(())
-    }
-
-    /// The declarations of one extension point: `[[contributes.x]]` gives
-    /// several, `[contributes.x]` one.
-    pub fn declarations(&self, point: &str) -> Vec<toml::Value> {
-        match self.contributes.get(point) {
-            Some(toml::Value::Array(items)) => items.clone(),
-            Some(single @ toml::Value::Table(_)) => vec![single.clone()],
-            _ => Vec::new(),
-        }
-    }
-
-    /// Number of declarations per extension point (for listings before loading).
-    pub fn declaration_counts(&self) -> Vec<(String, u32)> {
-        self.contributes.keys().map(|p| (p.clone(), self.declarations(p).len() as u32)).collect()
-    }
-
-    /// Publisher namespace: the id's part before the first `.` (`acme` in `acme.tools`).
-    pub fn publisher(&self) -> Option<&str> {
-        self.id.split_once('.').map(|(p, _)| p)
-    }
-
-    /// Whether `cap` is declared (required or optional).
-    pub fn declares(&self, cap: &Capability) -> bool {
-        self.capabilities.all().any(|c| c.covers(cap))
-    }
-}
-
-/// Whether this host can load a plugin written for `engine`.
-pub fn engine_compatible(engine: &str, legacy: bool) -> bool {
-    if legacy {
-        return engine == LEGACY_API || engine.strip_prefix(LEGACY_API).is_some_and(|rest| rest.starts_with('.'));
-    }
-    let Ok(req) = semver::VersionReq::parse(engine) else { return false };
-    let host = semver::Version::parse(ENGINE_VERSION).expect("valid engine version");
-    req.matches(&host)
-}
-
-/// Segments of `[a-z0-9][a-z0-9_-]*` joined by `.` (an optional publisher
-/// namespace first), at most 64 chars.
-pub fn validate_plugin_id(id: &str) -> Result<(), String> {
-    let ok = id.len() <= 64 && !id.is_empty() && id.split('.').all(segment_ok);
-    if ok {
-        Ok(())
-    } else {
-        Err(format!(
-            "invalid plugin id {id:?}: use a-z, 0-9, '-', '_' in '.'-separated parts (e.g. acme.tools), max 64"
-        ))
-    }
-}
-
-/// `[a-z0-9][a-z0-9._-]*`, at most 64 chars (commands, themes, views…).
-pub fn validate_item_id(id: &str, what: &str) -> Result<(), String> {
-    let ok_first = id.chars().next().is_some_and(|c| c.is_ascii_lowercase() || c.is_ascii_digit());
-    let ok_rest = id.chars().all(|c| c.is_ascii_lowercase() || c.is_ascii_digit() || matches!(c, '-' | '_' | '.'));
-    if ok_first && ok_rest && id.len() <= 64 {
-        Ok(())
-    } else {
-        Err(format!("invalid {what} {id:?}: use a-z, 0-9, '.', '-', '_', starting with a letter or digit (max 64)"))
-    }
-}
-
-/// Extension point ids: `camelCase` or `kebab-case` words, dots allowed (`iconThemes`, `menus`).
-pub fn validate_point_id(id: &str) -> Result<(), String> {
-    let ok = !id.is_empty()
-        && id.len() <= 64
-        && id.starts_with(|c: char| c.is_ascii_lowercase())
-        && id.chars().all(|c| c.is_ascii_alphanumeric() || matches!(c, '-' | '.'));
-    if ok { Ok(()) } else { Err(format!("invalid contribution point {id:?}")) }
-}
-
-fn segment_ok(s: &str) -> bool {
-    s.chars().next().is_some_and(|c| c.is_ascii_lowercase() || c.is_ascii_digit())
-        && s.chars().all(|c| c.is_ascii_lowercase() || c.is_ascii_digit() || c == '-' || c == '_')
-}
-
-/// Package paths must stay inside the package directory.
-pub fn check_relative(path: &Path, what: &str) -> Result<(), String> {
-    let ok = !path.as_os_str().is_empty() && path.components().all(|c| matches!(c, Component::Normal(_)));
-    if ok { Ok(()) } else { Err(format!("{what} {:?} must be a relative path inside the plugin", path.display())) }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    const FULL: &str = r#"
-        id = "acme.rust-tools"
-        name = "Rust Tools"
-        version = "1.2.0"
-        engines.openidea = "^1.0"
-        wasm = "plugin.wasm"
-        activation = ["on-language:rust", "on-command:check", "on-schedule:300"]
-
-        [capabilities]
-        required = ["project.read", "editor.write"]
-        optional = ["net:crates.io", "process:cargo"]
-
-        [[contributes.commands]]
-        id = "check"
-        title = "%check.title%"
-
-        [[contributes.menus]]
-        menu = "editor.context"
-        command = "check"
-        when = "editorLang == rust"
-
-        [contributes.settings]
-        schema = "settings.schema.json"
-    "#;
-
-    #[test]
-    fn event_activation() {
-        assert_eq!(ActivationEvent::parse("on-event:file-saved"), Ok(ActivationEvent::Event("file-saved".into())));
-        assert_eq!(ActivationEvent::Event("vcs-changed".into()).to_string(), "on-event:vcs-changed");
-        let err = ActivationEvent::parse("on-event:keystroke").unwrap_err();
-        assert!(err.contains("unknown event kind") && err.contains("action-performed"), "{err}");
-        assert!(ActivationEvent::parse("on-event:scheduled").is_err(), "declared with on-schedule");
-    }
-
-    #[test]
-    fn parses_the_02_format() {
-        let m = Manifest::parse(FULL).unwrap();
-        assert_eq!(m.publisher(), Some("acme"));
-        assert!(!m.legacy);
-        assert_eq!(m.activation.len(), 3);
-        assert_eq!(m.activation[2], ActivationEvent::Schedule(300));
-        assert_eq!(m.capabilities.required, vec![Capability::ProjectRead, Capability::EditorWrite]);
-        assert!(m.capabilities.is_optional(&Capability::Process("cargo".into())));
-        assert_eq!(m.declarations("commands").len(), 1);
-        assert_eq!(m.declarations("settings").len(), 1, "a single table is one declaration");
-        assert!(m.declarations("nope").is_empty());
-        let counts: Vec<_> = m.declaration_counts();
-        assert!(counts.contains(&("menus".into(), 1)));
-    }
-
-    #[test]
-    fn parses_the_01_format() {
-        let m = Manifest::parse(
-            "id = \"hello\"\nname = \"Hello\"\nversion = \"0.1.0\"\nopenidea-api = \"0.1\"\nwasm = \"dist/plugin.wasm\"\n\
-             permissions = [\"project-read\", \"editor-write\"]\n[[contributes.commands]]\nid = \"x\"\ntitle = \"X\"",
-        )
-        .unwrap();
-        assert!(m.legacy);
-        assert_eq!(m.capabilities.required, vec![Capability::ProjectRead, Capability::EditorWrite]);
-        assert_eq!(m.activation, vec![ActivationEvent::StartupFinished]);
-        assert_eq!(m.publisher(), None);
-    }
-
-    fn err(src: &str) -> String {
-        Manifest::parse(src).unwrap_err()
-    }
-
-    #[test]
-    fn rejects_invalid_manifests() {
-        let base = |extra: &str| format!("id = \"ok\"\nname = \"N\"\nversion = \"1.0.0\"\n{extra}");
-        assert!(err(&base("")).contains("engines.openidea"));
-        assert!(err(&base("engines.openidea = \"^0.3\"")).contains("does not match"));
-        assert!(err(&base("engines.openidea = \"^2\"")).contains("does not match"));
-        assert!(err(&base("engines.openidea = \"^0.2\"")).contains("does not match"));
-        assert!(err(&base("openidea-api = \"0.2\"")).contains("unsupported"));
-        assert!(err(&base("engines.openidea = \"^1.0\"\npermissions = [\"project-read\"]")).contains("0.1 format"));
-        assert!(
-            err(&base("engines.openidea = \"^1.0\"\n[capabilities]\nrequired = [\"network\"]")).contains("unknown")
-        );
-        assert!(err(&base("engines.openidea = \"^1.0\"\nwasm = \"../x.wasm\"")).contains("relative path"));
-        assert!(err(&base("engines.openidea = \"^1.0\"\nactivation = [\"on-command:x\"]")).contains("needs `wasm`"));
-        assert!(
-            err(&base("engines.openidea = \"^1.0\"\nwasm = \"p.wasm\"\nactivation = [\"on-boot\"]"))
-                .contains("unknown")
-        );
-        assert!(
-            err(&base("engines.openidea = \"^1.0\"\nwasm = \"p.wasm\"\nactivation = [\"on-schedule:5\"]"))
-                .contains("60 seconds")
-        );
-        assert!(err(&base("engines.openidea = \"^1.0\"\nbogus = 1")).contains("unknown field"));
-        assert!(err(&base("engines.openidea = \"^1.0\"\ncontributes.commands = 3")).contains("table"));
-        assert!(
-            err("id = \"Bad\"\nname = \"N\"\nversion = \"1.0.0\"\nengines.openidea = \"^1.0\"").contains("plugin id")
-        );
-        assert!(
-            err("id = \"a..b\"\nname = \"N\"\nversion = \"1.0.0\"\nengines.openidea = \"^1.0\"").contains("plugin id")
-        );
-        assert!(err("id = \"ok\"\nname = \"N\"\nversion = \"1.0\"\nengines.openidea = \"^1.0\"").contains("version"));
-    }
-
-    #[test]
-    fn ids() {
-        assert!(validate_plugin_id("openidea.material-icons").is_ok());
-        assert!(validate_plugin_id("hello_2").is_ok());
-        assert!(validate_plugin_id(".x").is_err());
-        assert!(validate_item_id("word-count.v2_x", "command id").is_ok());
-        assert!(validate_item_id("-x", "command id").is_err());
-        assert!(validate_point_id("iconThemes").is_ok());
-        assert!(validate_point_id("Icon").is_err());
-        assert!(engine_compatible("1.0", false));
-        assert!(engine_compatible(">=1.0, <2", false));
-        assert!(!engine_compatible("^0.2", false), "0.x components don't run on 1.0");
-        assert!(engine_compatible("0.1.3", true));
-        assert!(!engine_compatible("0.10", true));
-    }
-}
@@ -1,465 +0,0 @@
-//! Plugin distribution: the package file, its
-//! signature, and the static marketplace index.
-//!
-//! - **Package** (`<id>-<version>.oiplugin`): a zip of the manifest, the files
-//!   its declarations reference, the component and licence files, plus
-//!   [`SIGNATURE_FILE`] when signed.
-//! - **Signature**: Ed25519 over `openidea-plugin/1\n<id>\n<version>\n<digest>`,
-//!   `digest` being [`package_digest`] of the unpacked files. A signature
-//!   proves who published the bytes; whether to trust that publisher is the
-//!   index's call.
-//! - **Index** (`index.json`): the publishers and their keys (the trust root),
-//!   the published plugins, and revocations. A publisher owns the id prefix
-//!   `<publisher>.`; a revoked key invalidates everything it signed, a
-//!   revoked plugin version is disabled where it is installed.
-
-use crate::MANIFEST_FILE;
-use base64::Engine as _;
-use ed25519_dalek::{Signature, Signer, SigningKey, VerifyingKey};
-use serde::{Deserialize, Serialize};
-use std::io::{Read, Write};
-use std::path::{Component, Path, PathBuf};
-
-pub const SIGNATURE_FILE: &str = "SIGNATURE.json";
-pub const PACKAGE_EXTENSION: &str = "oiplugin";
-pub const INDEX_FORMAT: u32 = 1;
-/// Limits when unpacking an untrusted package.
-const MAX_ENTRIES: usize = 10_000;
-const MAX_TOTAL: u64 = 512 << 20;
-
-const B64: base64::engine::GeneralPurpose = base64::engine::general_purpose::STANDARD;
-
-/// Content digest of a package: the manifest plus `files` (relative paths).
-pub fn package_digest(dir: &Path, files: &[PathBuf]) -> std::io::Result<String> {
-    let mut all = files.to_vec();
-    all.push(PathBuf::from(MANIFEST_FILE));
-    crate::ledger::package_hash(dir, &all)
-}
-
-fn signed_message(id: &str, version: &str, digest: &str) -> Vec<u8> {
-    format!("openidea-plugin/1\n{id}\n{version}\n{digest}").into_bytes()
-}
-
-/// `SIGNATURE.json` of a signed package.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct PackageSignature {
-    pub publisher: String,
-    /// Ed25519 public key, base64.
-    pub key: String,
-    /// Ed25519 signature, base64.
-    pub signature: String,
-}
-
-/// A publisher's key pair (the 32-byte seed, base64, in a file only the publisher has).
-pub struct PublisherKey(SigningKey);
-
-impl PublisherKey {
-    pub fn from_seed(seed: [u8; 32]) -> Self {
-        Self(SigningKey::from_bytes(&seed))
-    }
-
-    /// The seed as written by `openidea-plugin keygen`.
-    pub fn from_base64(text: &str) -> Result<Self, String> {
-        let bytes = B64.decode(text.trim()).map_err(|e| format!("key file: {e}"))?;
-        let seed: [u8; 32] = bytes.try_into().map_err(|_| "key file: expected a 32-byte key".to_owned())?;
-        Ok(Self::from_seed(seed))
-    }
-
-    pub fn seed_base64(&self) -> String {
-        B64.encode(self.0.to_bytes())
-    }
-
-    pub fn public_base64(&self) -> String {
-        B64.encode(self.0.verifying_key().to_bytes())
-    }
-
-    pub fn sign(&self, publisher: &str, id: &str, version: &str, digest: &str) -> PackageSignature {
-        let sig = self.0.sign(&signed_message(id, version, digest));
-        PackageSignature {
-            publisher: publisher.into(),
-            key: self.public_base64(),
-            signature: B64.encode(sig.to_bytes()),
-        }
-    }
-}
-
-impl PackageSignature {
-    /// Whether the signature is valid for `id`, `version` and `digest` (the
-    /// key's validity is checked against an [`Index`]).
-    pub fn check(&self, id: &str, version: &str, digest: &str) -> Result<(), String> {
-        let key: [u8; 32] = B64
-            .decode(&self.key)
-            .ok()
-            .and_then(|b| b.try_into().ok())
-            .ok_or_else(|| "signature: malformed public key".to_owned())?;
-        let key = VerifyingKey::from_bytes(&key).map_err(|_| "signature: invalid public key".to_owned())?;
-        let sig: [u8; 64] = B64
-            .decode(&self.signature)
-            .ok()
-            .and_then(|b| b.try_into().ok())
-            .ok_or_else(|| "signature: malformed".to_owned())?;
-        key.verify_strict(&signed_message(id, version, digest), &Signature::from_bytes(&sig))
-            .map_err(|_| "the signature does not match the package (it was changed after signing)".to_owned())
-    }
-}
-
-/// Writes the package `out` from `dir`: the manifest, `files`, and the signature if any.
-pub fn pack(dir: &Path, files: &[PathBuf], out: &Path, signature: Option<&PackageSignature>) -> Result<(), String> {
-    let io = |e: std::io::Error| e.to_string();
-    let file = std::fs::File::create(out).map_err(io)?;
-    let mut zip = zip::ZipWriter::new(file);
-    let options = zip::write::SimpleFileOptions::default().compression_method(zip::CompressionMethod::Deflated);
-    let mut names: Vec<PathBuf> = std::iter::once(PathBuf::from(MANIFEST_FILE)).chain(files.iter().cloned()).collect();
-    names.sort();
-    names.dedup();
-    for rel in names {
-        let name = rel.to_str().ok_or("non UTF-8 file name")?.replace('\\', "/");
-        zip.start_file(name, options).map_err(|e| e.to_string())?;
-        let bytes = std::fs::read(dir.join(&rel)).map_err(|e| format!("{}: {e}", rel.display()))?;
-        zip.write_all(&bytes).map_err(io)?;
-    }
-    if let Some(sig) = signature {
-        zip.start_file(SIGNATURE_FILE, options).map_err(|e| e.to_string())?;
-        zip.write_all(serde_json::to_string_pretty(sig).map_err(|e| e.to_string())?.as_bytes()).map_err(io)?;
-    }
-    zip.finish().map_err(|e| e.to_string())?;
-    Ok(())
-}
-
-/// What [`unpack`] wrote.
-#[derive(Debug)]
-pub struct Unpacked {
-    /// Every file but the manifest and the signature, relative.
-    pub files: Vec<PathBuf>,
-    pub signature: Option<PackageSignature>,
-}
-
-/// `name` as a relative path that stays inside the package.
-fn safe_path(name: &str) -> Option<PathBuf> {
-    let p = Path::new(name);
-    (!name.is_empty() && p.components().all(|c| matches!(c, Component::Normal(_)))).then(|| p.to_path_buf())
-}
-
-/// Archiver metadata at the top of an archive, not part of a package
-/// (`__MACOSX/…`, `.DS_Store`, AppleDouble `._…` files).
-fn archiver_metadata(name: &str) -> bool {
-    let top = name.split('/').next().unwrap_or_default();
-    top == "__MACOSX" || top == ".DS_Store" || (top.starts_with("._") && top.len() > 2)
-}
-
-/// Where the package is inside an archive: at its root (`.oiplugin`, or a zip
-/// of the package's contents) or in its only folder (a zip of the package
-/// folder). `None` when neither holds a manifest.
-fn package_prefix(names: &[String]) -> Option<String> {
-    if names.iter().any(|n| n == MANIFEST_FILE) {
-        return Some(String::new());
-    }
-    let mut tops = names.iter().filter(|n| !archiver_metadata(n)).map(|n| n.split('/').next().unwrap_or_default());
-    let top = tops.next()?;
-    if tops.any(|t| t != top) {
-        return None;
-    }
-    let prefix = format!("{top}/");
-    names.iter().any(|n| *n == format!("{prefix}{MANIFEST_FILE}")).then_some(prefix)
-}
-
-/// Extracts the package `archive` (an `.oiplugin`, or a `.zip` of a package
-/// folder or of its contents) into the empty directory `dest`, refusing
-/// paths leaving it, links, and oversized contents.
-pub fn unpack(archive: &Path, dest: &Path) -> Result<Unpacked, String> {
-    let file = std::fs::File::open(archive).map_err(|e| format!("{}: {e}", archive.display()))?;
-    let mut zip =
-        zip::ZipArchive::new(file).map_err(|e| format!("{}: not a plugin package ({e})", archive.display()))?;
-    if zip.len() > MAX_ENTRIES {
-        return Err(format!("more than {MAX_ENTRIES} files"));
-    }
-    let mut names = Vec::with_capacity(zip.len());
-    for i in 0..zip.len() {
-        let entry = zip.by_index(i).map_err(|e| e.to_string())?;
-        if !entry.is_dir() {
-            names.push(entry.name().map_err(|e| e.to_string())?.into_owned());
-        }
-    }
-    // An IntelliJ plugin or any other zip: say what is missing rather than fail later.
-    let prefix = package_prefix(&names).ok_or_else(|| {
-        format!("{} is not an OpenIDEA plugin: no {MANIFEST_FILE} at its root or in its only folder", archive.display())
-    })?;
-    std::fs::create_dir_all(dest).map_err(|e| e.to_string())?;
-    let (mut files, mut signature, mut total, mut manifest) = (Vec::new(), None, 0u64, false);
-    for i in 0..zip.len() {
-        let mut entry = zip.by_index(i).map_err(|e| e.to_string())?;
-        if entry.is_dir() {
-            continue;
-        }
-        let full = entry.name().map_err(|e| e.to_string())?.into_owned();
-        // Outside the package folder there is only archiver metadata (`package_prefix` checked).
-        let Some(name) = full.strip_prefix(&prefix).map(str::to_owned) else { continue };
-        if archiver_metadata(&name) {
-            continue;
-        }
-        if entry.is_symlink() {
-            return Err(format!("{full}: links are not allowed in packages"));
-        }
-        let rel = safe_path(&name).ok_or_else(|| format!("invalid path {full:?} in package"))?;
-        let mut bytes = Vec::new();
-        entry.by_ref().take(MAX_TOTAL - total + 1).read_to_end(&mut bytes).map_err(|e| e.to_string())?;
-        total += bytes.len() as u64;
-        if total > MAX_TOTAL {
-            return Err(format!("the package unpacks to more than {} MiB", MAX_TOTAL >> 20));
-        }
-        if rel == Path::new(SIGNATURE_FILE) {
-            signature = Some(serde_json::from_slice(&bytes).map_err(|e| format!("{SIGNATURE_FILE}: {e}"))?);
-            continue;
-        }
-        let to = dest.join(&rel);
-        if let Some(parent) = to.parent() {
-            std::fs::create_dir_all(parent).map_err(|e| e.to_string())?;
-        }
-        std::fs::write(&to, bytes).map_err(|e| e.to_string())?;
-        if rel == Path::new(MANIFEST_FILE) {
-            manifest = true;
-        } else {
-            files.push(rel);
-        }
-    }
-    if !manifest {
-        return Err(format!("the package has no {MANIFEST_FILE}"));
-    }
-    files.sort();
-    Ok(Unpacked { files, signature })
-}
-
-// ---- index -------------------------------------------------------------------
-
-#[derive(Clone, Debug, Default, PartialEq, Eq, Serialize, Deserialize, specta::Type)]
-#[serde(rename_all = "camelCase")]
-pub struct Index {
-    pub format: u32,
-    #[serde(default)]
-    pub publishers: Vec<Publisher>,
-    #[serde(default)]
-    pub plugins: Vec<IndexEntry>,
-    #[serde(default)]
-    pub revoked: Vec<Revocation>,
-}
-
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, specta::Type)]
-#[serde(rename_all = "camelCase")]
-pub struct Publisher {
-    /// Owns plugin ids `<id>.…`.
-    pub id: String,
-    pub name: String,
-    pub keys: Vec<KeyEntry>,
-}
-
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, specta::Type)]
-#[serde(rename_all = "camelCase")]
-pub struct KeyEntry {
-    /// Ed25519 public key, base64.
-    pub key: String,
-    /// Packages signed with it are no longer trusted.
-    #[serde(default)]
-    pub revoked: bool,
-}
-
-/// A published plugin version.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, specta::Type)]
-#[serde(rename_all = "camelCase")]
-pub struct IndexEntry {
-    pub id: String,
-    pub name: String,
-    pub version: String,
-    #[serde(default)]
-    pub description: String,
-    #[serde(default)]
-    pub authors: Vec<String>,
-    pub publisher: String,
-    /// The package, relative to the index (or an absolute URL).
-    pub download: String,
-    /// [`package_digest`] of its contents.
-    pub digest: String,
-    #[serde(default)]
-    pub capabilities: Vec<String>,
-}
-
-/// A plugin (all versions when `versions` is empty) that must not run.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, specta::Type)]
-#[serde(rename_all = "camelCase")]
-pub struct Revocation {
-    pub id: String,
-    #[serde(default)]
-    pub versions: Vec<String>,
-    pub reason: String,
-}
-
-impl Index {
-    pub fn parse(text: &str) -> Result<Self, String> {
-        let index: Index = serde_json::from_str(text).map_err(|e| format!("index: {e}"))?;
-        if index.format != INDEX_FORMAT {
-            return Err(format!("index format {} is not supported (this IDE reads {INDEX_FORMAT})", index.format));
-        }
-        Ok(index)
-    }
-
-    /// The revocation that applies to `id` at `version`.
-    pub fn revocation(&self, id: &str, version: &str) -> Option<&Revocation> {
-        self.revoked.iter().find(|r| r.id == id && (r.versions.is_empty() || r.versions.iter().any(|v| v == version)))
-    }
-
-    /// Whether `key` (base64) belongs to a publisher and was revoked.
-    pub fn key_revoked(&self, key: &str) -> bool {
-        self.publishers.iter().flat_map(|p| &p.keys).any(|k| k.key == key && k.revoked)
-    }
-
-    /// The trusted publisher of a signed package: the signature is valid, its
-    /// key is one of the publisher's and not revoked, and the publisher owns
-    /// the plugin's id prefix.
-    pub fn verify(&self, sig: &PackageSignature, id: &str, version: &str, digest: &str) -> Result<String, String> {
-        let publisher = self
-            .publishers
-            .iter()
-            .find(|p| p.id == sig.publisher)
-            .ok_or_else(|| format!("unknown publisher {:?}", sig.publisher))?;
-        let key = publisher
-            .keys
-            .iter()
-            .find(|k| k.key == sig.key)
-            .ok_or_else(|| format!("the key is not one of {}'s", publisher.name))?;
-        if key.revoked {
-            return Err(format!("{}'s signing key was revoked", publisher.name));
-        }
-        if !id.starts_with(&format!("{}.", publisher.id)) {
-            return Err(format!("{} may only publish plugins named {}.*", publisher.name, publisher.id));
-        }
-        sig.check(id, version, digest)?;
-        Ok(publisher.id.clone())
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    fn package(dir: &Path) -> Vec<PathBuf> {
-        std::fs::create_dir_all(dir.join("dist")).unwrap();
-        std::fs::write(dir.join(MANIFEST_FILE), "id = \"acme.tools\"\nversion = \"1.0.0\"").unwrap();
-        std::fs::write(dir.join("dist/plugin.wasm"), b"\0asm").unwrap();
-        vec![PathBuf::from("dist/plugin.wasm")]
-    }
-
-    fn index(key: &PublisherKey) -> Index {
-        Index {
-            format: INDEX_FORMAT,
-            publishers: vec![Publisher {
-                id: "acme".into(),
-                name: "ACME".into(),
-                keys: vec![KeyEntry { key: key.public_base64(), revoked: false }],
-            }],
-            plugins: Vec::new(),
-            revoked: vec![Revocation {
-                id: "acme.bad".into(),
-                versions: vec!["1.0.0".into()],
-                reason: "malware".into(),
-            }],
-        }
-    }
-
-    #[test]
-    fn signed_packages_round_trip_and_tampering_is_caught() {
-        let tmp = tempfile::tempdir().unwrap();
-        let src = tmp.path().join("src");
-        let files = package(&src);
-        let digest = package_digest(&src, &files).unwrap();
-        let key = PublisherKey::from_seed([7; 32]);
-        let sig = key.sign("acme", "acme.tools", "1.0.0", &digest);
-        let out = tmp.path().join("acme.tools-1.0.0.oiplugin");
-        pack(&src, &files, &out, Some(&sig)).unwrap();
-
-        let dest = tmp.path().join("dest");
-        let unpacked = unpack(&out, &dest).unwrap();
-        assert_eq!(unpacked.files, files);
-        assert_eq!(package_digest(&dest, &unpacked.files).unwrap(), digest);
-        let index = index(&key);
-        assert_eq!(index.verify(unpacked.signature.as_ref().unwrap(), "acme.tools", "1.0.0", &digest).unwrap(), "acme");
-
-        // Changed bytes, another id, someone else's prefix, a revoked key.
-        assert!(index.verify(&sig, "acme.tools", "1.0.0", "0000").is_err());
-        assert!(index.verify(&sig, "acme.tools", "1.0.1", &digest).is_err());
-        let other = PublisherKey::from_seed([9; 32]).sign("acme", "acme.tools", "1.0.0", &digest);
-        assert!(index.verify(&other, "acme.tools", "1.0.0", &digest).unwrap_err().contains("not one of"));
-        let foreign = key.sign("acme", "evil.tools", "1.0.0", &digest);
-        assert!(index.verify(&foreign, "evil.tools", "1.0.0", &digest).unwrap_err().contains("acme.*"));
-        let mut revoked = index.clone();
-        revoked.publishers[0].keys[0].revoked = true;
-        assert!(revoked.verify(&sig, "acme.tools", "1.0.0", &digest).unwrap_err().contains("revoked"));
-        assert!(revoked.key_revoked(&sig.key));
-        assert_eq!(index.revocation("acme.bad", "1.0.0").unwrap().reason, "malware");
-        assert!(index.revocation("acme.bad", "1.0.1").is_none());
-        assert_eq!(PublisherKey::from_base64(&key.seed_base64()).unwrap().public_base64(), key.public_base64());
-    }
-
-    #[test]
-    fn unpacking_refuses_paths_leaving_the_package() {
-        let tmp = tempfile::tempdir().unwrap();
-        let out = tmp.path().join("evil.oiplugin");
-        let mut zip = zip::ZipWriter::new(std::fs::File::create(&out).unwrap());
-        let o = zip::write::SimpleFileOptions::default();
-        zip.start_file(MANIFEST_FILE, o).unwrap();
-        zip.write_all(b"id = \"x\"").unwrap();
-        zip.start_file("../outside.txt", o).unwrap();
-        zip.write_all(b"x").unwrap();
-        zip.finish().unwrap();
-        let err = unpack(&out, &tmp.path().join("dest")).unwrap_err();
-        assert!(err.contains("invalid path"), "{err}");
-        assert!(!tmp.path().join("outside.txt").exists());
-        assert!(Index::parse(r#"{"format": 2}"#).is_err());
-    }
-
-    fn zip_of(path: &Path, entries: &[(&str, &str)]) {
-        let mut zip = zip::ZipWriter::new(std::fs::File::create(path).unwrap());
-        for (name, body) in entries {
-            zip.start_file(*name, zip::write::SimpleFileOptions::default()).unwrap();
-            zip.write_all(body.as_bytes()).unwrap();
-        }
-        zip.finish().unwrap();
-    }
-
-    #[test]
-    fn a_zip_holds_the_package_at_its_root_or_in_its_only_folder() {
-        let tmp = tempfile::tempdir().unwrap();
-        let manifest = "id = \"acme.tools\"";
-        let at_root = tmp.path().join("root.zip");
-        zip_of(&at_root, &[(MANIFEST_FILE, manifest), ("dist/plugin.wasm", "w"), (".DS_Store", "x")]);
-        let got = unpack(&at_root, &tmp.path().join("a")).unwrap();
-        assert_eq!(got.files, [PathBuf::from("dist/plugin.wasm")]);
-
-        // What zipping the folder in Finder makes: the folder plus `__MACOSX`.
-        let folder = tmp.path().join("folder.zip");
-        zip_of(
-            &folder,
-            &[
-                ("acme-tools/plugin.toml", manifest),
-                ("acme-tools/dist/plugin.wasm", "w"),
-                ("__MACOSX/acme-tools/._plugin.toml", "x"),
-            ],
-        );
-        let dest = tmp.path().join("b");
-        let got = unpack(&folder, &dest).unwrap();
-        assert_eq!(got.files, [PathBuf::from("dist/plugin.wasm")]);
-        assert!(dest.join(MANIFEST_FILE).is_file());
-        assert!(!dest.join("__MACOSX").exists() && !dest.join("acme-tools").exists());
-
-        // Two folders, a manifest one level too deep, or none (an IntelliJ plugin): not a package.
-        for (name, entries) in [
-            ("two.zip", &[("a/plugin.toml", manifest), ("b/x.txt", "x")][..]),
-            ("deep.zip", &[("a/b/plugin.toml", manifest)][..]),
-            ("intellij.zip", &[("my-plugin/lib/my-plugin.jar", "jar")][..]),
-        ] {
-            let path = tmp.path().join(name);
-            zip_of(&path, entries);
-            let err = unpack(&path, &tmp.path().join(name).with_extension("out")).unwrap_err();
-            assert!(err.contains("is not an OpenIDEA plugin"), "{name}: {err}");
-        }
-    }
-}
@@ -1,175 +0,0 @@
-//! The extension point contract (plan 4.1).
-
-use crate::capability::Capability;
-use crate::manifest::{Manifest, check_relative};
-use std::path::{Path, PathBuf};
-use std::sync::Arc;
-
-/// Where a contribution takes effect (plan 3, placement rules).
-#[derive(Clone, Copy, Debug, PartialEq, Eq, serde::Serialize, serde::Deserialize, specta::Type)]
-#[serde(rename_all = "camelCase")]
-pub enum Placement {
-    /// Projected to the client (menus, keybindings, themes, icons).
-    Ui,
-    /// Takes effect on the machine the project is on (languages, LSP, run configurations).
-    Workspace,
-}
-
-/// The package a declaration comes from, as extension points see it.
-#[derive(Clone, Debug)]
-pub struct Package {
-    pub manifest: Arc<Manifest>,
-    /// Package directory.
-    pub dir: PathBuf,
-    /// Hash of the package's files when they never change (an installed
-    /// copy): validated declarations are then reused from the
-    /// [`ContributionIndex`](crate::ContributionIndex).
-    pub digest: Option<Arc<str>>,
-}
-
-/// Largest single package file an extension point reads.
-pub const MAX_PACKAGE_FILE: u64 = 8 << 20;
-
-impl Package {
-    pub fn new(manifest: Manifest, dir: PathBuf) -> Self {
-        Self { manifest: Arc::new(manifest), dir, digest: None }
-    }
-
-    pub fn with_digest(mut self, digest: &str) -> Self {
-        self.digest = Some(digest.into());
-        self
-    }
-
-    pub fn id(&self) -> &str {
-        &self.manifest.id
-    }
-
-    /// Resolves a package-relative path, refusing anything that leaves the
-    /// package (`..`, absolute paths, symlinks pointing outside).
-    pub fn resolve(&self, rel: &Path) -> Result<PathBuf, String> {
-        check_relative(rel, "path")?;
-        let joined = self.dir.join(rel);
-        let real = joined.canonicalize().map_err(|_| format!("{}: no such file in the plugin", rel.display()))?;
-        let root = self.dir.canonicalize().map_err(|e| format!("plugin directory: {e}"))?;
-        if !real.starts_with(&root) {
-            return Err(format!("{}: points outside the plugin", rel.display()));
-        }
-        Ok(real)
-    }
-
-    pub fn read_bytes(&self, rel: &Path) -> Result<Vec<u8>, String> {
-        let real = self.resolve(rel)?;
-        let meta = std::fs::metadata(&real).map_err(|e| format!("{}: {e}", rel.display()))?;
-        if !meta.is_file() {
-            return Err(format!("{}: not a file", rel.display()));
-        }
-        if meta.len() > MAX_PACKAGE_FILE {
-            return Err(format!("{}: larger than {} MiB", rel.display(), MAX_PACKAGE_FILE >> 20));
-        }
-        std::fs::read(&real).map_err(|e| format!("{}: {e}", rel.display()))
-    }
-
-    pub fn read_text(&self, rel: &Path) -> Result<String, String> {
-        String::from_utf8(self.read_bytes(rel)?).map_err(|_| format!("{}: not UTF-8 text", rel.display()))
-    }
-}
-
-/// Undoes one committed contribution. Dropping without [`dispose`](Self::dispose) also disposes.
-#[must_use = "dropping a Disposable undoes the contribution"]
-pub struct Disposable(Option<Box<dyn FnOnce() + Send>>);
-
-impl Disposable {
-    pub fn new(f: impl FnOnce() + Send + 'static) -> Self {
-        Self(Some(Box::new(f)))
-    }
-
-    /// A contribution with nothing to undo.
-    pub fn noop() -> Self {
-        Self(None)
-    }
-
-    pub fn dispose(mut self) {
-        if let Some(f) = self.0.take() {
-            f();
-        }
-    }
-}
-
-impl Drop for Disposable {
-    fn drop(&mut self) {
-        if let Some(f) = self.0.take() {
-            f();
-        }
-    }
-}
-
-impl std::fmt::Debug for Disposable {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.write_str("Disposable")
-    }
-}
-
-pub type Commit = Box<dyn FnOnce() -> Result<Disposable, String> + Send>;
-
-/// A validated declaration, ready to take effect.
-pub struct Prepared {
-    /// Capabilities this declaration needs (a language with an LSP → `process:<binary>`).
-    pub capabilities: Vec<Capability>,
-    /// Package files the declaration references (copied on install).
-    pub files: Vec<PathBuf>,
-    /// Identity within the point: a later declaration with the same key replaces
-    /// the earlier one of the same plugin (re-registering a command).
-    pub key: Option<String>,
-    /// User-facing one-liner for the plugin details page ("Insert Date").
-    pub label: String,
-    /// Makes it take effect. Must not fail for reasons `prepare` could have checked.
-    pub commit: Commit,
-}
-
-impl Prepared {
-    pub fn new(label: impl Into<String>, commit: impl FnOnce() -> Result<Disposable, String> + Send + 'static) -> Self {
-        Self { capabilities: Vec::new(), files: Vec::new(), key: None, label: label.into(), commit: Box::new(commit) }
-    }
-
-    pub fn key(mut self, key: impl Into<String>) -> Self {
-        self.key = Some(key.into());
-        self
-    }
-
-    pub fn file(mut self, path: impl Into<PathBuf>) -> Self {
-        self.files.push(path.into());
-        self
-    }
-
-    pub fn capability(mut self, cap: Capability) -> Self {
-        if !self.capabilities.contains(&cap) {
-            self.capabilities.push(cap);
-        }
-        self
-    }
-}
-
-impl std::fmt::Debug for Prepared {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.debug_struct("Prepared").field("key", &self.key).field("label", &self.label).finish_non_exhaustive()
-    }
-}
-
-/// A kind of contribution (`contributes.<id>` in the manifest). Implemented by
-/// the crate that owns the feature; registered once in an [`crate::ExtensionRegistry`].
-pub trait ExtensionPoint: Send + Sync {
-    /// `"languages"`, `"iconThemes"`, …
-    fn id(&self) -> &'static str;
-
-    fn placement(&self) -> Placement;
-
-    /// Parses and validates one declaration without side effects, and works
-    /// out the capabilities it needs. `Ui` points validate completely here: the
-    /// client's projection is not allowed to fail.
-    fn prepare(&self, pkg: &Package, decl: toml::Value) -> Result<Prepared, String>;
-}
-
-/// Deserializes a declaration with serde, prefixing errors with the point id.
-pub fn decode<T: serde::de::DeserializeOwned>(point: &str, decl: toml::Value) -> Result<T, String> {
-    decl.try_into().map_err(|e: toml::de::Error| format!("contributes.{point}: {}", e.message()))
-}
@@ -1,305 +0,0 @@
-//! Extension points plus the contributions committed to them, accounted per plugin.
-
-use crate::capability::Capability;
-use crate::point::{Disposable, ExtensionPoint, Package, Placement, Prepared};
-use parking_lot::{Mutex, RwLock};
-use serde::{Deserialize, Serialize};
-use specta::Type;
-use std::collections::BTreeMap;
-use std::path::PathBuf;
-use std::sync::Arc;
-
-/// A contribution as the plugin details page lists it.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub struct ContributionInfo {
-    pub point: String,
-    pub label: String,
-}
-
-struct Entry {
-    point: &'static str,
-    key: Option<String>,
-    label: String,
-    disposable: Disposable,
-}
-
-/// Every declaration of a package, validated; nothing has taken effect yet.
-pub struct PreparedSet {
-    pub plugin: String,
-    /// Union of what the declarations need (beyond the manifest's own list).
-    pub capabilities: Vec<Capability>,
-    /// Package files the declarations reference.
-    pub files: Vec<PathBuf>,
-    /// Declarations for extension points this host does not know (skipped).
-    pub warnings: Vec<String>,
-    items: Vec<(&'static str, Prepared)>,
-}
-
-impl PreparedSet {
-    pub fn is_empty(&self) -> bool {
-        self.items.is_empty()
-    }
-
-    pub fn len(&self) -> usize {
-        self.items.len()
-    }
-}
-
-impl std::fmt::Debug for PreparedSet {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.debug_struct("PreparedSet")
-            .field("plugin", &self.plugin)
-            .field("items", &self.items.len())
-            .field("warnings", &self.warnings)
-            .finish()
-    }
-}
-
-#[derive(Default)]
-pub struct ExtensionRegistry {
-    points: RwLock<BTreeMap<&'static str, Arc<dyn ExtensionPoint>>>,
-    /// plugin id → its contributions in commit order.
-    entries: Mutex<BTreeMap<String, Vec<Entry>>>,
-}
-
-impl ExtensionRegistry {
-    pub fn new() -> Self {
-        Self::default()
-    }
-
-    /// Adds an extension point. Ids are unique.
-    pub fn register(&self, point: Arc<dyn ExtensionPoint>) -> Result<(), String> {
-        let id = point.id();
-        crate::manifest::validate_point_id(id)?;
-        let mut points = self.points.write();
-        if points.contains_key(id) {
-            return Err(format!("extension point {id:?} is already registered"));
-        }
-        points.insert(id, point);
-        Ok(())
-    }
-
-    pub fn point_ids(&self) -> Vec<&'static str> {
-        self.points.read().keys().copied().collect()
-    }
-
-    pub fn placement(&self, point: &str) -> Option<Placement> {
-        self.points.read().get(point).map(|p| p.placement())
-    }
-
-    fn point(&self, id: &str) -> Option<Arc<dyn ExtensionPoint>> {
-        self.points.read().get(id).cloned()
-    }
-
-    /// Validates every `contributes.<point>` declaration of `pkg`. Fails as a
-    /// whole on the first invalid declaration; unknown points are skipped with
-    /// a warning (forward compatibility).
-    pub fn prepare(&self, pkg: &Package) -> Result<PreparedSet, String> {
-        let mut set = PreparedSet {
-            plugin: pkg.id().to_owned(),
-            capabilities: Vec::new(),
-            files: Vec::new(),
-            warnings: Vec::new(),
-            items: Vec::new(),
-        };
-        for point_id in pkg.manifest.contributes.keys() {
-            let Some(point) = self.point(point_id) else {
-                let msg = format!("contributes.{point_id}: not supported by this version of the IDE; skipped");
-                tracing::warn!(plugin = %pkg.id(), "{msg}");
-                set.warnings.push(msg);
-                continue;
-            };
-            for (i, decl) in pkg.manifest.declarations(point_id).into_iter().enumerate() {
-                let prepared = point
-                    .prepare(pkg, decl)
-                    .map_err(|e| format!("contributes.{point_id}[{i}]: {}", strip_prefix(&e, point_id)))?;
-                for cap in &prepared.capabilities {
-                    if !set.capabilities.contains(cap) {
-                        set.capabilities.push(cap.clone());
-                    }
-                }
-                for f in &prepared.files {
-                    if !set.files.contains(f) {
-                        set.files.push(f.clone());
-                    }
-                }
-                set.items.push((point.id(), prepared));
-            }
-        }
-        Ok(set)
-    }
-
-    /// Makes a prepared set take effect, all or nothing: if one commit fails,
-    /// the ones before it are disposed in reverse order.
-    pub fn commit(&self, set: PreparedSet) -> Result<(), String> {
-        let mut committed: Vec<Entry> = Vec::with_capacity(set.items.len());
-        for (point, prepared) in set.items {
-            let Prepared { key, label, commit, .. } = prepared;
-            match commit() {
-                Ok(disposable) => committed.push(Entry { point, key, label, disposable }),
-                Err(e) => {
-                    tracing::error!(plugin = %set.plugin, "contributes.{point}: commit failed: {e}");
-                    while let Some(entry) = committed.pop() {
-                        entry.disposable.dispose();
-                    }
-                    return Err(format!("contributes.{point}: {e}"));
-                }
-            }
-        }
-        let replaced = {
-            let mut entries = self.entries.lock();
-            let list = entries.entry(set.plugin).or_default();
-            let mut replaced = Vec::new();
-            for new in &committed {
-                if let Some(key) = &new.key
-                    && let Some(pos) = list.iter().position(|e| e.point == new.point && e.key.as_ref() == Some(key))
-                {
-                    replaced.push(list.remove(pos));
-                }
-            }
-            list.extend(committed);
-            replaced
-        };
-        for old in replaced.into_iter().rev() {
-            old.disposable.dispose();
-        }
-        Ok(())
-    }
-
-    /// Withdraws everything `plugin` contributed, newest first.
-    pub fn dispose_plugin(&self, plugin: &str) -> bool {
-        let list = self.entries.lock().remove(plugin).unwrap_or_default();
-        let any = !list.is_empty();
-        for entry in list.into_iter().rev() {
-            entry.disposable.dispose();
-        }
-        any
-    }
-
-    pub fn contributions(&self, plugin: &str) -> Vec<ContributionInfo> {
-        self.entries
-            .lock()
-            .get(plugin)
-            .map(|list| {
-                list.iter().map(|e| ContributionInfo { point: e.point.into(), label: e.label.clone() }).collect()
-            })
-            .unwrap_or_default()
-    }
-
-    /// How many contributions `plugin` has at `point`.
-    pub fn count(&self, plugin: &str, point: &str) -> usize {
-        self.entries.lock().get(plugin).map_or(0, |list| list.iter().filter(|e| e.point == point).count())
-    }
-
-    /// Plugins with at least one contribution.
-    pub fn plugins(&self) -> Vec<String> {
-        self.entries.lock().iter().filter(|(_, l)| !l.is_empty()).map(|(id, _)| id.clone()).collect()
-    }
-}
-
-fn strip_prefix<'a>(e: &'a str, point: &str) -> &'a str {
-    e.strip_prefix(&format!("contributes.{point}: ")).unwrap_or(e)
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::manifest::Manifest;
-    use std::sync::atomic::{AtomicUsize, Ordering};
-
-    /// Records live items in a shared list; `fail = true` makes commit fail.
-    struct Recording {
-        id: &'static str,
-        live: Arc<Mutex<Vec<String>>>,
-        commits: Arc<AtomicUsize>,
-    }
-
-    impl ExtensionPoint for Recording {
-        fn id(&self) -> &'static str {
-            self.id
-        }
-        fn placement(&self) -> Placement {
-            Placement::Ui
-        }
-        fn prepare(&self, _pkg: &Package, decl: toml::Value) -> Result<Prepared, String> {
-            let name = decl.get("name").and_then(|v| v.as_str()).ok_or("missing name")?.to_owned();
-            let fail = decl.get("fail").and_then(|v| v.as_bool()).unwrap_or(false);
-            let (live, commits) = (self.live.clone(), self.commits.clone());
-            let label = name.clone();
-            let mut p = Prepared::new(label, move || {
-                commits.fetch_add(1, Ordering::SeqCst);
-                if fail {
-                    return Err("boom".into());
-                }
-                live.lock().push(name.clone());
-                Ok(Disposable::new(move || live.lock().retain(|n| *n != name)))
-            });
-            if let Some(f) = decl.get("file").and_then(|v| v.as_str()) {
-                p = p.file(f);
-            }
-            if decl.get("key").and_then(|v| v.as_bool()).unwrap_or(false) {
-                p = p.key("k");
-            }
-            Ok(p)
-        }
-    }
-
-    fn setup() -> (ExtensionRegistry, Arc<Mutex<Vec<String>>>) {
-        let reg = ExtensionRegistry::new();
-        let live = Arc::new(Mutex::new(Vec::new()));
-        let commits = Arc::new(AtomicUsize::new(0));
-        reg.register(Arc::new(Recording { id: "things", live: live.clone(), commits: commits.clone() })).unwrap();
-        reg.register(Arc::new(Recording { id: "others", live: live.clone(), commits })).unwrap();
-        (reg, live)
-    }
-
-    fn pkg(contributes: &str) -> Package {
-        let src = format!("id = \"p\"\nname = \"P\"\nversion = \"1.0.0\"\nengines.openidea = \"^1.0\"\n{contributes}");
-        Package::new(Manifest::parse(&src).unwrap(), PathBuf::from("/nonexistent"))
-    }
-
-    #[test]
-    fn commits_and_disposes_per_plugin() {
-        let (reg, live) = setup();
-        assert!(
-            reg.register(Arc::new(Recording { id: "things", live: live.clone(), commits: Default::default() }))
-                .is_err()
-        );
-        let p = pkg(
-            "[[contributes.things]]\nname = \"a\"\nfile = \"x.json\"\n[[contributes.things]]\nname = \"b\"\n[contributes.others]\nname = \"c\"",
-        );
-        let set = reg.prepare(&p).unwrap();
-        assert_eq!(set.len(), 3);
-        assert_eq!(set.files, [PathBuf::from("x.json")]);
-        assert!(live.lock().is_empty(), "prepare has no side effects");
-        reg.commit(set).unwrap();
-        assert_eq!(*live.lock(), ["c", "a", "b"]);
-        assert_eq!(reg.count("p", "things"), 2);
-        assert_eq!(reg.contributions("p").len(), 3);
-        assert!(reg.dispose_plugin("p"));
-        assert!(live.lock().is_empty());
-    }
-
-    #[test]
-    fn a_failed_commit_rolls_back() {
-        let (reg, live) = setup();
-        let p = pkg("[[contributes.things]]\nname = \"a\"\n[[contributes.things]]\nname = \"b\"\nfail = true");
-        let err = reg.commit(reg.prepare(&p).unwrap()).unwrap_err();
-        assert!(err.contains("boom"));
-        assert!(live.lock().is_empty(), "a was undone");
-        assert!(reg.contributions("p").is_empty());
-    }
-
-    #[test]
-    fn invalid_declarations_fail_prepare_and_unknown_points_warn() {
-        let (reg, _) = setup();
-        let err = reg.prepare(&pkg("[[contributes.things]]\nnope = 1")).unwrap_err();
-        assert_eq!(err, "contributes.things[0]: missing name");
-        let set =
-            reg.prepare(&pkg("[[contributes.futureThing]]\nx = 1\n[[contributes.things]]\nname = \"a\"")).unwrap();
-        assert_eq!(set.len(), 1);
-        assert_eq!(set.warnings.len(), 1);
-        assert!(set.warnings[0].contains("futureThing"));
-    }
-}
@@ -1,247 +0,0 @@
-//! UI contributions: validated declarations projected to the client.
-//!
-//! A `Ui` extension point validates a declaration completely in Rust and
-//! commits it as JSON into the [`UiStore`]; the client receives the store's
-//! snapshot and projects each item onto an existing `register*` function
-//! (`defineUiPoint` in `src/features/plugins/projection.ts`). Large payloads
-//! (icon SVGs) go into the store's assets and are fetched on demand.
-
-use crate::index::ContributionIndex;
-use crate::point::{Disposable, ExtensionPoint, Package, Placement, Prepared};
-use parking_lot::RwLock;
-use serde::{Deserialize, Serialize};
-use specta::Type;
-use std::collections::BTreeMap;
-use std::path::PathBuf;
-use std::sync::Arc;
-use std::sync::atomic::{AtomicU64, Ordering};
-
-/// One projected declaration.
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub struct UiContribution {
-    pub plugin_id: String,
-    /// Extension point id (`commands`, `iconThemes`, …).
-    pub point: String,
-    /// Stable within (plugin, point): the client keys its registrations on it.
-    pub key: String,
-    /// The validated declaration, shaped by the point.
-    #[specta(type = specta_typescript::Unknown)]
-    pub decl: serde_json::Value,
-}
-
-struct Item {
-    seq: u64,
-    contribution: UiContribution,
-}
-
-/// Committed UI contributions of all plugins.
-#[derive(Default)]
-pub struct UiStore {
-    items: RwLock<Vec<Item>>,
-    /// (plugin, asset id) → content.
-    assets: RwLock<BTreeMap<(String, String), Arc<str>>>,
-    seq: AtomicU64,
-    revision: AtomicU64,
-    index: RwLock<Option<Arc<ContributionIndex>>>,
-}
-
-impl UiStore {
-    pub fn new() -> Arc<Self> {
-        Arc::new(Self::default())
-    }
-
-    /// Adds an item; the returned disposable removes it.
-    pub fn insert(self: &Arc<Self>, contribution: UiContribution) -> Disposable {
-        let seq = self.seq.fetch_add(1, Ordering::Relaxed);
-        self.items.write().push(Item { seq, contribution });
-        self.revision.fetch_add(1, Ordering::Release);
-        let store = Arc::downgrade(self);
-        Disposable::new(move || {
-            if let Some(store) = store.upgrade() {
-                store.items.write().retain(|i| i.seq != seq);
-                store.revision.fetch_add(1, Ordering::Release);
-            }
-        })
-    }
-
-    /// Stores assets of a plugin (ids are unique per plugin; later ones replace).
-    pub fn insert_assets(self: &Arc<Self>, plugin: &str, assets: Vec<(String, String)>) -> Disposable {
-        let keys: Vec<(String, String)> = assets.iter().map(|(id, _)| (plugin.to_owned(), id.clone())).collect();
-        {
-            let mut map = self.assets.write();
-            for (id, content) in assets {
-                map.insert((plugin.to_owned(), id), Arc::from(content));
-            }
-        }
-        let store = Arc::downgrade(self);
-        Disposable::new(move || {
-            if let Some(store) = store.upgrade() {
-                let mut map = store.assets.write();
-                for k in keys {
-                    map.remove(&k);
-                }
-            }
-        })
-    }
-
-    pub fn asset(&self, plugin: &str, id: &str) -> Option<Arc<str>> {
-        self.assets.read().get(&(plugin.to_owned(), id.to_owned())).cloned()
-    }
-
-    /// Assets of `plugin` whose id starts with `prefix`.
-    pub fn assets_with_prefix(&self, plugin: &str, prefix: &str) -> Vec<(String, Arc<str>)> {
-        self.assets
-            .read()
-            .range((plugin.to_owned(), prefix.to_owned())..)
-            .take_while(|((p, id), _)| p == plugin && id.starts_with(prefix))
-            .map(|((_, id), v)| (id.clone(), v.clone()))
-            .collect()
-    }
-
-    /// Where [`UiPoint`]s keep validated declarations of installed packages.
-    pub fn set_index(&self, index: Option<Arc<ContributionIndex>>) {
-        *self.index.write() = index;
-    }
-
-    /// Bumped on every change: clients compare it to skip re-projection.
-    pub fn revision(&self) -> u64 {
-        self.revision.load(Ordering::Acquire)
-    }
-
-    pub fn snapshot(&self) -> Vec<UiContribution> {
-        self.items.read().iter().map(|i| i.contribution.clone()).collect()
-    }
-
-    /// Items of one point, optionally of one plugin.
-    pub fn items(&self, point: &str, plugin: Option<&str>) -> Vec<UiContribution> {
-        self.items
-            .read()
-            .iter()
-            .filter(|i| i.contribution.point == point && plugin.is_none_or(|p| i.contribution.plugin_id == p))
-            .map(|i| i.contribution.clone())
-            .collect()
-    }
-}
-
-/// What a [`UiPoint`]'s validator produces for one declaration.
-#[derive(Debug, Serialize, Deserialize)]
-pub struct UiDecl {
-    pub key: String,
-    pub label: String,
-    pub json: serde_json::Value,
-    /// Package files referenced (copied on install).
-    pub files: Vec<PathBuf>,
-    /// Large validated payloads fetched separately by the client.
-    pub assets: Vec<(String, String)>,
-}
-
-impl UiDecl {
-    pub fn new(key: impl Into<String>, label: impl Into<String>, json: serde_json::Value) -> Self {
-        Self { key: key.into(), label: label.into(), json, files: Vec::new(), assets: Vec::new() }
-    }
-}
-
-type Validate = dyn Fn(&Package, toml::Value) -> Result<UiDecl, String> + Send + Sync;
-
-/// A `Ui` extension point defined by a validator: committing stores the
-/// validated JSON (and assets) in the [`UiStore`]. Most UI contribution types
-/// (menus, keybindings, status bar items, icon themes) are one of these.
-pub struct UiPoint {
-    id: &'static str,
-    store: Arc<UiStore>,
-    validate: Box<Validate>,
-}
-
-impl UiPoint {
-    pub fn new(
-        id: &'static str,
-        store: Arc<UiStore>,
-        validate: impl Fn(&Package, toml::Value) -> Result<UiDecl, String> + Send + Sync + 'static,
-    ) -> Self {
-        Self { id, store, validate: Box::new(validate) }
-    }
-}
-
-impl ExtensionPoint for UiPoint {
-    fn id(&self) -> &'static str {
-        self.id
-    }
-
-    fn placement(&self) -> Placement {
-        Placement::Ui
-    }
-
-    fn prepare(&self, pkg: &Package, decl: toml::Value) -> Result<Prepared, String> {
-        let index = pkg.digest.as_ref().and_then(|_| self.store.index.read().clone());
-        let ui = match index.as_ref().and_then(|i| i.get(pkg, self.id, &decl)) {
-            Some(ui) => ui,
-            None => match &index {
-                Some(i) => {
-                    let ui = (self.validate)(pkg, decl.clone())?;
-                    i.put(pkg, self.id, &decl, &ui);
-                    ui
-                }
-                None => (self.validate)(pkg, decl)?,
-            },
-        };
-        let UiDecl { key, label, json, files, assets } = ui;
-        let store = self.store.clone();
-        let contribution =
-            UiContribution { plugin_id: pkg.id().to_owned(), point: self.id.to_owned(), key: key.clone(), decl: json };
-        let plugin = pkg.id().to_owned();
-        let mut prepared = Prepared::new(label, move || {
-            let item = store.insert(contribution);
-            if assets.is_empty() {
-                return Ok(item);
-            }
-            let assets = store.insert_assets(&plugin, assets);
-            Ok(Disposable::new(move || {
-                item.dispose();
-                assets.dispose();
-            }))
-        })
-        .key(key);
-        prepared.files = files;
-        Ok(prepared)
-    }
-}
-
-/// TOML declaration → JSON for the client.
-pub fn to_json(v: &toml::Value) -> serde_json::Value {
-    serde_json::to_value(v).unwrap_or(serde_json::Value::Null)
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::manifest::Manifest;
-    use crate::registry::ExtensionRegistry;
-
-    #[test]
-    fn ui_point_projects_into_the_store() {
-        let store = UiStore::new();
-        let reg = ExtensionRegistry::new();
-        reg.register(Arc::new(UiPoint::new("badges", store.clone(), |_pkg, decl| {
-            let text = decl.get("text").and_then(|v| v.as_str()).ok_or("missing text")?.to_owned();
-            let mut d = UiDecl::new(text.clone(), text.clone(), serde_json::json!({ "text": text }));
-            d.assets.push((format!("badge/{text}"), "<svg/>".into()));
-            Ok(d)
-        })))
-        .unwrap();
-        let src = "id = \"p\"\nname = \"P\"\nversion = \"1.0.0\"\nengines.openidea = \"^1.0\"\n\
-                   [[contributes.badges]]\ntext = \"hi\"";
-        let pkg = Package::new(Manifest::parse(src).unwrap(), PathBuf::from("/x"));
-        let rev = store.revision();
-        reg.commit(reg.prepare(&pkg).unwrap()).unwrap();
-        assert!(store.revision() > rev);
-        let items = store.items("badges", Some("p"));
-        assert_eq!(items.len(), 1);
-        assert_eq!(items[0].decl["text"], "hi");
-        assert_eq!(store.asset("p", "badge/hi").as_deref(), Some("<svg/>"));
-        assert_eq!(store.assets_with_prefix("p", "badge/").len(), 1);
-        reg.dispose_plugin("p");
-        assert!(store.snapshot().is_empty());
-        assert!(store.asset("p", "badge/hi").is_none());
-    }
-}
@@ -1,136 +0,0 @@
-//! Syntax check for `when` clauses in UI declarations. The client evaluates
-//! them (`src/platform/context.ts`); validating here keeps the client's
-//! projection from failing. Grammar (same as the client):
-//!
-//! ```text
-//! expr := or ; or := and ("||" and)* ; and := unary ("&&" unary)*
-//! unary := "!" unary | "(" expr ")" | cmp ; cmp := key (("==" | "!=") value)?
-//! ```
-
-const MAX_LEN: usize = 512;
-
-#[derive(Debug, PartialEq)]
-enum Tok<'a> {
-    Id(&'a str),
-    Str,
-    Op(&'a str),
-}
-
-fn tokenize(src: &str) -> Result<Vec<Tok<'_>>, String> {
-    let mut out = Vec::new();
-    let b = src.as_bytes();
-    let mut i = 0;
-    while i < b.len() {
-        let c = b[i] as char;
-        if c.is_whitespace() {
-            i += 1;
-        } else if ["&&", "||", "==", "!="].iter().any(|op| src[i..].starts_with(op)) {
-            out.push(Tok::Op(&src[i..i + 2]));
-            i += 2;
-        } else if matches!(c, '!' | '(' | ')') {
-            out.push(Tok::Op(&src[i..i + 1]));
-            i += 1;
-        } else if c == '\'' || c == '"' {
-            let end = src[i + 1..].find(c).ok_or_else(|| format!("unterminated string in when clause: {src}"))?;
-            out.push(Tok::Str);
-            i += end + 2;
-        } else {
-            let len = src[i..]
-                .find(|ch: char| !(ch.is_alphanumeric() || matches!(ch, '_' | '.' | '-' | ':' | '/')))
-                .unwrap_or(src.len() - i);
-            if len == 0 {
-                return Err(format!("unexpected '{c}' in when clause: {src}"));
-            }
-            out.push(Tok::Id(&src[i..i + len]));
-            i += len;
-        }
-    }
-    Ok(out)
-}
-
-/// Checks a `when` clause; empty means "always".
-pub fn validate_when(src: &str) -> Result<(), String> {
-    if src.len() > MAX_LEN {
-        return Err(format!("when clause longer than {MAX_LEN} bytes"));
-    }
-    if src.trim().is_empty() {
-        return Ok(());
-    }
-    let toks = tokenize(src)?;
-    let mut p = 0;
-    parse_or(&toks, &mut p, src)?;
-    if p != toks.len() {
-        return Err(format!("unexpected token in when clause: {src}"));
-    }
-    Ok(())
-}
-
-fn parse_or(t: &[Tok], p: &mut usize, src: &str) -> Result<(), String> {
-    parse_and(t, p, src)?;
-    while t.get(*p) == Some(&Tok::Op("||")) {
-        *p += 1;
-        parse_and(t, p, src)?;
-    }
-    Ok(())
-}
-
-fn parse_and(t: &[Tok], p: &mut usize, src: &str) -> Result<(), String> {
-    parse_unary(t, p, src)?;
-    while t.get(*p) == Some(&Tok::Op("&&")) {
-        *p += 1;
-        parse_unary(t, p, src)?;
-    }
-    Ok(())
-}
-
-fn parse_unary(t: &[Tok], p: &mut usize, src: &str) -> Result<(), String> {
-    match t.get(*p) {
-        Some(Tok::Op("!")) => {
-            *p += 1;
-            parse_unary(t, p, src)
-        }
-        Some(Tok::Op("(")) => {
-            *p += 1;
-            parse_or(t, p, src)?;
-            if t.get(*p) != Some(&Tok::Op(")")) {
-                return Err(format!("missing ')' in when clause: {src}"));
-            }
-            *p += 1;
-            Ok(())
-        }
-        Some(Tok::Id(_)) => {
-            *p += 1;
-            if matches!(t.get(*p), Some(Tok::Op("==" | "!="))) {
-                *p += 1;
-                match t.get(*p) {
-                    Some(Tok::Id(_) | Tok::Str) => *p += 1,
-                    _ => return Err(format!("missing value after comparison in when clause: {src}")),
-                }
-            }
-            Ok(())
-        }
-        _ => Err(format!("expected a context key in when clause: {src}")),
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::validate_when;
-
-    #[test]
-    fn accepts_the_client_grammar() {
-        for ok in [
-            "",
-            "editorFocus",
-            "editorLang == rust",
-            "editorLang != 'rust' && !readOnly",
-            "(a || b) && toolWindow.project.active",
-            "resourceScheme == file:/x",
-        ] {
-            assert!(validate_when(ok).is_ok(), "{ok}");
-        }
-        for bad in ["a &&", "(a", "a == ", "== a", "a b", "a $ b", "'x", "!()"] {
-            assert!(validate_when(bad).is_err(), "{bad}");
-        }
-    }
-}
@@ -13,3 +13,6 @@ serde_json.workspace = true
 specta.workspace = true
 tracing.workspace = true
 which = "8"
+
+[target.'cfg(unix)'.dependencies]
+libc = "0.2"
@@ -1,16 +1,11 @@
 //! Child processes of the gh CLI: bounded runs and cancellable line streams.

-use ide_core::process::terminate_tree;
 use ide_core::{CancellationToken, IdeError, IdeResult};
 use std::io::Read;
 use std::process::{Child, Command, Stdio};
 use std::sync::mpsc;
 use std::time::{Duration, Instant};

-/// How long a cancelled or timed-out child's process group (gh spawns git and helpers)
-/// gets to exit on `SIGTERM` before `SIGKILL`: git removes its lock files on `SIGTERM`.
-const KILL_GRACE: Duration = Duration::from_millis(20);
-
 pub(crate) struct Output {
    pub stdout: String,
    pub stderr: String,
@@ -25,13 +20,36 @@ pub(crate) enum Stream {

 fn prepare(cmd: &mut Command) {
    cmd.stdin(Stdio::null()).stdout(Stdio::piped()).stderr(Stdio::piped());
-    ide_core::process::prepare(ide_core::process::own_group(cmd));
+    #[cfg(unix)]
+    {
+        use std::os::unix::process::CommandExt;
+        cmd.process_group(0);
+    }
+    ide_core::process::prepare(cmd);
 }

 fn spawn(cmd: &mut Command) -> IdeResult<Child> {
    cmd.spawn().map_err(|e| IdeError::unavailable(format!("could not run gh: {e}")))
 }

+/// Kills the child and, on Unix, its whole process group (gh spawns git and helpers).
+pub(crate) fn kill(child: &mut Child) {
+    #[cfg(unix)]
+    {
+        let pid = child.id() as libc::pid_t;
+        // SAFETY: plain syscall; the child leads its own process group (`prepare`).
+        unsafe {
+            libc::kill(-pid, libc::SIGTERM);
+        }
+        std::thread::sleep(Duration::from_millis(20));
+        unsafe {
+            libc::kill(-pid, libc::SIGKILL);
+        }
+    }
+    let _ = child.kill();
+    let _ = child.wait();
+}
+
 fn read_all(mut pipe: impl Read + Send + 'static) -> std::thread::JoinHandle<String> {
    std::thread::spawn(move || {
        let mut buf = Vec::new();
@@ -74,11 +92,11 @@ pub(crate) fn run_with_input(
            break status;
        }
        if cancel.is_some_and(CancellationToken::is_cancelled) {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::cancelled());
        }
        if Instant::now() >= deadline {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::unavailable("gh did not respond in time"));
        }
        std::thread::sleep(Duration::from_millis(10));
@@ -152,7 +170,7 @@ pub(crate) fn stream(
    let mut stderr_tail: Vec<String> = Vec::new();
    while open > 0 {
        if cancel.is_cancelled() {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::cancelled());
        }
        match rx.recv_timeout(Duration::from_millis(50)) {
@@ -175,7 +193,7 @@ pub(crate) fn stream(
            break status;
        }
        if cancel.is_cancelled() {
-            terminate_tree(&mut child, KILL_GRACE);
+            kill(&mut child);
            return Err(IdeError::cancelled());
        }
        std::thread::sleep(Duration::from_millis(10));
@@ -30,23 +30,15 @@ ide-terminal.workspace = true
 ide-run.workspace = true
 ide-sdk.workspace = true
 ide-http.workspace = true
-reqwest.workspace = true
-ignore.workspace = true
-base64.workspace = true
-getrandom = "0.3"
-globset.workspace = true
 ide-db.workspace = true
 ide-ssh.workspace = true
 ide-remote.workspace = true
 ide-jsonrpc.workspace = true
 ide-agent.workspace = true
 ide-notebook.workspace = true
-ide-extension.workspace = true
-ide-plugin.workspace = true
 ide-tools = { path = "../ide-tools" }
 serde.workspace = true
 serde_json.workspace = true
-toml.workspace = true
 specta.workspace = true
 specta-typescript.workspace = true
 tokio = { workspace = true, features = ["io-std"] }
@@ -59,17 +51,4 @@ uuid.workspace = true
 tempfile.workspace = true

 [dev-dependencies]
-ide-ssh = { workspace = true, features = ["testing"] }
 tokio = { workspace = true, features = ["rt-multi-thread", "macros", "io-util", "test-util"] }
-criterion = { version = "0.5", default-features = false }
-zip.workspace = true
-
-[target.'cfg(unix)'.dependencies]
-rustix = { version = "1.1", features = ["fs", "process"] }
-
-[target.'cfg(windows)'.dependencies]
-windows-sys = { version = "0.61", features = ["Win32_Storage_FileSystem"] }
-
-[[bench]]
-name = "plugins"
-harness = false
@@ -1,149 +0,0 @@
-//! `cargo bench -p ide-host`: the plugin runtime budgets, checked by `pnpm perf:rust` against
-//! `perf/budgets.json` › rust (`plugins/…`).
-//!
-//! - `load_50`: start-up load of 50 installed plugins (20 with code, 10
-//!   languages with a syntax provider, 10 icon themes, 10 declarations only),
-//!   from the contribution index; no Wasm is instantiated.
-//! - `cold_activation`: an idle-reclaimed plugin's next command: activation
-//!   from the precompiled component plus the call.
-//! - `syntax_highlights_2k_lines`: an edit-path call (Solidity highlighting).
-
-use criterion::{Criterion, black_box, criterion_group, criterion_main};
-use ide_core::LanguageId;
-use ide_host::plugins::{Consent, PluginHost};
-use ide_plugin::{Invocation, Limits};
-use std::path::{Path, PathBuf};
-use std::sync::Arc;
-use std::time::Duration;
-
-fn repo() -> PathBuf {
-    Path::new(env!("CARGO_MANIFEST_DIR")).join("../..").canonicalize().unwrap()
-}
-
-fn copy_dir(from: &Path, to: &Path) {
-    std::fs::create_dir_all(to).unwrap();
-    for e in std::fs::read_dir(from).unwrap().flatten() {
-        let name = e.file_name();
-        if matches!(name.to_str(), Some("target" | "src" | "Cargo.lock" | ".gitignore")) {
-            continue;
-        }
-        let dst = to.join(&name);
-        if e.path().is_dir() { copy_dir(&e.path(), &dst) } else { std::fs::copy(e.path(), &dst).map(|_| ()).unwrap() }
-    }
-}
-
-/// A copy of `src` installed under a new id (and new language / theme ids).
-fn variant(work: &Path, src: &Path, n: usize, rename: &[(&str, String)]) -> PathBuf {
-    let dir = work.join(format!("pkg{n}"));
-    copy_dir(src, &dir);
-    for file in ["plugin.toml", "languages/solidity.toml"] {
-        let path = dir.join(file);
-        if let Ok(mut text) = std::fs::read_to_string(&path) {
-            for (from, to) in rename {
-                text = text.replace(from, to);
-            }
-            std::fs::write(&path, text).unwrap();
-        }
-    }
-    dir
-}
-
-fn sink() -> Arc<dyn ide_host::plugins::PluginEventSink> {
-    Arc::new(|_: Option<&str>, _| {})
-}
-
-fn install_50(plugins: &Path, work: &Path) {
-    let host = PluginHost::new(plugins.to_path_buf(), sink(), Limits::default()).unwrap();
-    host.load_all();
-    let root = repo();
-    let mut n = 0;
-    let mut install = |src: PathBuf, rename: Vec<(&str, String)>| {
-        let pkg = variant(work, &src, n, &rename);
-        n += 1;
-        host.install_from_dir(&pkg, &Consent::default()).unwrap();
-    };
-    for i in 0..20 {
-        install(
-            root.join("crates/ide-plugin/tests/fixtures/hello"),
-            vec![("id = \"hello\"", format!("id = \"bench.hello{i}\""))],
-        );
-    }
-    for i in 0..10 {
-        install(
-            root.join("plugins/official/solidity"),
-            vec![
-                ("openidea.solidity", format!("bench.solidity{i}")),
-                ("id = \"solidity\"", format!("id = \"solidity{i}\"")),
-                ("extensions = [\"sol\"]", format!("extensions = [\"sol{i}\"]")),
-                ("on-language:solidity", format!("on-language:solidity{i}")),
-                ("id = \"forge-", format!("id = \"f{i}-")),
-                ("id = \"hardhat-", format!("id = \"h{i}-")),
-            ],
-        );
-    }
-    for i in 0..10 {
-        install(
-            root.join("plugins/official/material-icons"),
-            vec![
-                ("openidea.material-icons", format!("bench.icons{i}")),
-                ("id = \"material\"", format!("id = \"material{i}\"")),
-            ],
-        );
-    }
-    for i in 0..10 {
-        let dir = work.join(format!("static{i}"));
-        std::fs::create_dir_all(&dir).unwrap();
-        std::fs::write(
-            dir.join("plugin.toml"),
-            format!(
-                "id = \"bench.static{i}\"\nname = \"Static {i}\"\nversion = \"1.0.0\"\nengines.openidea = \"^1.0\"\n\
-                 [[contributes.commands]]\nid = \"a\"\ntitle = \"Static {i}: A\"\nwhen = \"editorLang == rust\"\n"
-            ),
-        )
-        .unwrap();
-        host.install_from_dir(&dir, &Consent::default()).unwrap();
-    }
-}
-
-fn bench(c: &mut Criterion) {
-    let tmp = tempfile::tempdir().unwrap();
-    let plugins = tmp.path().join("plugins");
-    install_50(&plugins, &tmp.path().join("work"));
-
-    let mut g = c.benchmark_group("plugins");
-    g.sample_size(20);
-    g.bench_function("load_50", |b| {
-        b.iter(|| {
-            let host = PluginHost::new(plugins.clone(), sink(), Limits::default()).unwrap();
-            host.load_all();
-            assert_eq!(host.instances(), 0, "start-up instantiates no Wasm");
-            black_box(host.list(None).plugins.len())
-        })
-    });
-
-    let limits = Limits { idle_timeout: Some(Duration::ZERO), ..Limits::default() };
-    let host = Arc::new(PluginHost::new(plugins.clone(), sink(), limits).unwrap());
-    host.load_all();
-    host.warm_component_cache();
-    g.bench_function("cold_activation", |b| {
-        b.iter(|| {
-            host.tick();
-            // Fails for want of an editor, after activating and running.
-            let r = host.run_command("bench.hello0", "word-count", None, Invocation::default());
-            black_box(r.is_err())
-        })
-    });
-
-    let provider = host.syntax_provider();
-    let lang = LanguageId::new("solidity0");
-    let unit = "contract Token {\n    uint256 public total;\n    mapping(address => uint256) balances;\n    event Sent(address to, uint256 v);\n    function send(address to, uint256 v) public returns (bool) {\n        // move funds\n        balances[to] += v;\n        emit Sent(to, v);\n        return true;\n    }\n}\n";
-    let text = unit.repeat(2000 / unit.lines().count());
-    assert!(provider.highlights(&lang, &text).is_some());
-    g.bench_function("syntax_highlights_2k_lines", |b| {
-        b.iter(|| black_box(provider.highlights(&lang, &text).map(|t| t.len())))
-    });
-    g.finish();
-}
-
-criterion_group!(benches, bench);
-criterion_main!(benches);
@@ -1,624 +0,0 @@
-//! `openidea-plugin`: scaffolds, builds, checks and links OpenIDEA plugins.
-//!
-//! ```text
-//! openidea-plugin new <dir> [--template command|theme|icon-theme|language] [--id ID] [--name NAME] [--sdk PATH]
-//! openidea-plugin build [dir] [--debug]   # cargo → dist/plugin.wasm, then `check`
-//! openidea-plugin check [dir]             # validate the package as the IDE would install it
-//! openidea-plugin link [dir]              # load the folder in the IDE without installing it
-//! openidea-plugin unlink [dir]
-//! openidea-plugin links                   # list linked folders
-//! openidea-plugin keygen <key-file>       # a publisher's Ed25519 key
-//! openidea-plugin pack [dir] [--key F --publisher ID] [--out FILE]   # <id>-<version>.oiplugin
-//! openidea-plugin index <dir> --publisher ID --name NAME --key F     # marketplace index.json
-//! ```
-//!
-//! `link` writes `links.json` in the IDE's plugins directory
-//! (`$OPENIDEA_PLUGINS_DIR`, or the app data directory); the IDE picks the
-//! change up when Settings › Plugins is opened or refreshed. Linked plugins
-//! are re-read from the folder, so `build` + refresh is the edit loop.
-
-mod templates;
-
-use ide_extension::{Manifest, validate_plugin_id};
-use ide_host::plugins::PluginHost;
-use ide_plugin::{Limits, PluginEngine};
-use std::path::{Path, PathBuf};
-use std::process::{Command, ExitCode};
-use std::sync::Arc;
-
-const USAGE: &str = "\
-usage: openidea-plugin <command> [options]
-
-commands:
-  new <dir> [--template T] [--id ID] [--name NAME] [--sdk PATH]
-        create a plugin; T = command (default), theme, icon-theme, language
-  build [dir] [--debug]   compile a Rust plugin to dist/plugin.wasm and check it
-  check [dir]             validate the package as the IDE would install it
-  link [dir]              load the folder in the IDE without installing it
-  unlink [dir]            stop loading a linked folder
-  links                   list linked folders
-  keygen <key-file>       create a publisher signing key (keep the file secret)
-  pack [dir] [--key F --publisher ID] [--out FILE]
-                          write <id>-<version>.oiplugin, signed with the key
-  index <dir> --publisher ID --name NAME --key F [--out FILE]
-                          write the marketplace index.json for the packages in dir
-
-environment:
-  OPENIDEA_PLUGINS_DIR    the IDE's plugins directory (default: the app data directory)";
-
-fn main() -> ExitCode {
-    let args: Vec<String> = std::env::args().skip(1).collect();
-    let result = match args.first().map(String::as_str) {
-        Some("new") => cmd_new(&args[1..]),
-        Some("build") => cmd_build(&args[1..]),
-        Some("check") => dir_arg(&args[1..]).and_then(|d| check(&d)),
-        Some("link") => dir_arg(&args[1..]).and_then(|d| link(&d, true)),
-        Some("unlink") => dir_arg(&args[1..]).and_then(|d| link(&d, false)),
-        Some("links") => list_links(),
-        Some("keygen") => cmd_keygen(&args[1..]),
-        Some("pack") => cmd_pack(&args[1..]),
-        Some("index") => cmd_index(&args[1..]),
-        Some("--version" | "-V") => {
-            println!("openidea-plugin {} (plugin API {})", env!("CARGO_PKG_VERSION"), ide_extension::ENGINE_VERSION);
-            Ok(())
-        }
-        Some("help" | "--help" | "-h") | None => {
-            println!("{USAGE}");
-            Ok(())
-        }
-        Some(other) => Err(format!("unknown command {other:?}\n\n{USAGE}")),
-    };
-    match result {
-        Ok(()) => ExitCode::SUCCESS,
-        Err(e) => {
-            eprintln!("error: {e}");
-            ExitCode::FAILURE
-        }
-    }
-}
-
-/// Splits `args` into positionals and `--flag value` / `--switch` options.
-struct Args {
-    positional: Vec<String>,
-    options: Vec<(String, Option<String>)>,
-}
-
-impl Args {
-    fn parse(args: &[String], switches: &[&str], valued: &[&str]) -> Result<Self, String> {
-        let mut out = Args { positional: Vec::new(), options: Vec::new() };
-        let mut it = args.iter();
-        while let Some(a) = it.next() {
-            if let Some(name) = a.strip_prefix("--") {
-                let (name, inline) = match name.split_once('=') {
-                    Some((n, v)) => (n, Some(v.to_owned())),
-                    None => (name, None),
-                };
-                if switches.contains(&name) && inline.is_none() {
-                    out.options.push((name.into(), None));
-                } else if valued.contains(&name) {
-                    let v = inline.or_else(|| it.next().cloned()).ok_or_else(|| format!("--{name} needs a value"))?;
-                    out.options.push((name.into(), Some(v)));
-                } else {
-                    return Err(format!("unknown option --{name}"));
-                }
-            } else {
-                out.positional.push(a.clone());
-            }
-        }
-        Ok(out)
-    }
-
-    fn value(&self, name: &str) -> Option<&str> {
-        self.options.iter().rev().find(|(n, _)| n == name).and_then(|(_, v)| v.as_deref())
-    }
-
-    fn has(&self, name: &str) -> bool {
-        self.options.iter().any(|(n, _)| n == name)
-    }
-
-    fn dir(&self) -> Result<PathBuf, String> {
-        match self.positional.as_slice() {
-            [] => Ok(PathBuf::from(".")),
-            [d] => Ok(PathBuf::from(d)),
-            _ => Err("expected at most one directory".into()),
-        }
-    }
-}
-
-fn dir_arg(args: &[String]) -> Result<PathBuf, String> {
-    Args::parse(args, &[], &[])?.dir()
-}
-
-fn canonical(dir: &Path) -> Result<PathBuf, String> {
-    dunce::canonicalize(dir).map_err(|e| format!("{}: {e}", dir.display()))
-}
-
-// ---------------------------------------------------------------- new
-
-fn cmd_new(args: &[String]) -> Result<(), String> {
-    let a = Args::parse(args, &[], &["template", "id", "name", "sdk"])?;
-    let [dir] = a.positional.as_slice() else {
-        return Err("usage: openidea-plugin new <dir> [--template T] [--id ID] [--name NAME]".into());
-    };
-    let dir = PathBuf::from(dir);
-    let template = templates::Template::parse(a.value("template").unwrap_or("command"))?;
-    let base = dir.file_name().and_then(|n| n.to_str()).ok_or("the directory needs a name")?;
-    let id = match a.value("id") {
-        Some(id) => id.to_owned(),
-        None => slugify(base),
-    };
-    validate_plugin_id(&id)?;
-    let name = match a.value("name") {
-        Some(n) => n.to_owned(),
-        None => title_case(id.rsplit('.').next().unwrap_or(&id)),
-    };
-    if name.trim().is_empty() || name.contains(['"', '\\', '\n']) {
-        return Err("--name must not be empty or contain quotes, backslashes or newlines".into());
-    }
-    if dir.exists() && std::fs::read_dir(&dir).map_err(|e| e.to_string())?.next().is_some() {
-        return Err(format!("{} already exists and is not empty", dir.display()));
-    }
-    std::fs::create_dir_all(&dir).map_err(|e| format!("{}: {e}", dir.display()))?;
-    let dir = canonical(&dir)?;
-    let sdk = match template {
-        templates::Template::Command => Some(sdk_path(a.value("sdk"), &dir)?),
-        _ => None,
-    };
-    let vars = templates::Vars { id: &id, name: &name, sdk: sdk.as_deref() };
-    let files = templates::render(template, &vars);
-    for (rel, content) in &files {
-        let path = dir.join(rel);
-        if let Some(parent) = path.parent() {
-            std::fs::create_dir_all(parent).map_err(|e| format!("{}: {e}", parent.display()))?;
-        }
-        std::fs::write(&path, content).map_err(|e| format!("{}: {e}", path.display()))?;
-    }
-    // Generated packages must be valid as written.
-    Manifest::load(&dir).map_err(|e| format!("internal error: the template is invalid: {e}"))?;
-    println!("created {} ({id}) in {}", template.label(), dir.display());
-    let shown = std::env::current_dir().ok().and_then(|cwd| dir.strip_prefix(cwd).ok().map(Path::to_path_buf));
-    let shown = shown.as_deref().unwrap_or(&dir).display().to_string();
-    println!();
-    println!("next:");
-    if template == templates::Template::Command {
-        println!("  cargo test --manifest-path {shown}/Cargo.toml   # unit tests against the mock host");
-        println!("  openidea-plugin build {shown}");
-    } else {
-        println!("  openidea-plugin check {shown}");
-    }
-    println!("  openidea-plugin link {shown}                  # then Settings › Plugins");
-    Ok(())
-}
-
-/// `My Cool_Plugin` → `my-cool-plugin`.
-fn slugify(s: &str) -> String {
-    let mut out = String::new();
-    for c in s.chars() {
-        match c {
-            'a'..='z' | '0'..='9' | '.' => out.push(c),
-            'A'..='Z' => out.push(c.to_ascii_lowercase()),
-            _ if !out.ends_with('-') && !out.is_empty() => out.push('-'),
-            _ => {}
-        }
-    }
-    out.trim_matches(['-', '.']).to_owned()
-}
-
-/// `my-cool_plugin` → `My Cool Plugin`.
-fn title_case(s: &str) -> String {
-    s.split(['-', '_'])
-        .filter(|w| !w.is_empty())
-        .map(|w| {
-            let mut c = w.chars();
-            c.next().map(|f| f.to_uppercase().chain(c).collect::<String>()).unwrap_or_default()
-        })
-        .collect::<Vec<_>>()
-        .join(" ")
-}
-
-/// The SDK dependency path written into a new plugin's Cargo.toml: `--sdk`,
-/// or the SDK of the source tree this tool was built from.
-fn sdk_path(explicit: Option<&str>, plugin_dir: &Path) -> Result<String, String> {
-    let sdk = match explicit {
-        Some(p) => PathBuf::from(p),
-        None => PathBuf::from(concat!(env!("CARGO_MANIFEST_DIR"), "/../../sdk/rust/openidea-plugin")),
-    };
-    let sdk = dunce::canonicalize(&sdk).map_err(|_| {
-        format!("the plugin SDK was not found at {}; pass --sdk <path to sdk/rust/openidea-plugin>", sdk.display())
-    })?;
-    if !sdk.join("Cargo.toml").is_file() {
-        return Err(format!("{} is not the openidea-plugin SDK (no Cargo.toml)", sdk.display()));
-    }
-    let path = relative(plugin_dir, &sdk).unwrap_or(sdk);
-    Ok(path.to_string_lossy().replace('\\', "/"))
-}
-
-/// `to` relative to `from` when they share a root (keeps packages in a repo movable).
-fn relative(from: &Path, to: &Path) -> Option<PathBuf> {
-    let (f, t): (Vec<_>, Vec<_>) = (from.components().collect(), to.components().collect());
-    let common = f.iter().zip(&t).take_while(|(a, b)| a == b).count();
-    if common <= 1 {
-        return None;
-    }
-    let mut out = PathBuf::new();
-    for _ in common..f.len() {
-        out.push("..");
-    }
-    for c in &t[common..] {
-        out.push(c);
-    }
-    Some(out)
-}
-
-// ---------------------------------------------------------------- build / check
-
-fn cmd_build(args: &[String]) -> Result<(), String> {
-    let a = Args::parse(args, &["debug"], &[])?;
-    let dir = canonical(&a.dir()?)?;
-    let manifest = Manifest::load(&dir)?;
-    let cargo_toml = dir.join("Cargo.toml");
-    if !cargo_toml.is_file() {
-        if manifest.wasm.is_some() {
-            return Err(format!(
-                "{} has no Cargo.toml: build the component with your toolchain, then run `check`",
-                dir.display()
-            ));
-        }
-        println!("{} has no code to build", manifest.id);
-        return check(&dir);
-    }
-    let wasm_rel = manifest.wasm.clone().ok_or("plugin.toml has no `wasm = \"dist/plugin.wasm\"`")?;
-    let crate_name = crate_name(&cargo_toml)?;
-    ensure_wasm_target();
-    let release = !a.has("debug");
-    let target_dir = std::env::var_os("CARGO_TARGET_DIR").map(PathBuf::from).unwrap_or_else(|| dir.join("target"));
-    let mut cmd = Command::new(std::env::var_os("CARGO").unwrap_or_else(|| "cargo".into()));
-    cmd.arg("build").arg("--manifest-path").arg(&cargo_toml).args(["--target", "wasm32-wasip2"]);
-    if release {
-        cmd.arg("--release");
-    }
-    cmd.env("CARGO_TARGET_DIR", &target_dir);
-    println!("building {crate_name} for wasm32-wasip2 ({})", if release { "release" } else { "debug" });
-    let status = cmd.status().map_err(|e| format!("cannot run cargo: {e}"))?;
-    if !status.success() {
-        return Err("cargo build failed".into());
-    }
-    let built = target_dir
-        .join("wasm32-wasip2")
-        .join(if release { "release" } else { "debug" })
-        .join(format!("{}.wasm", crate_name.replace('-', "_")));
-    if !built.is_file() {
-        return Err(format!("{} was not produced: is `crate-type = [\"cdylib\"]` set in Cargo.toml?", built.display()));
-    }
-    let out = dir.join(&wasm_rel);
-    if let Some(parent) = out.parent() {
-        std::fs::create_dir_all(parent).map_err(|e| format!("{}: {e}", parent.display()))?;
-    }
-    std::fs::copy(&built, &out).map_err(|e| format!("{}: {e}", out.display()))?;
-    let size = std::fs::metadata(&out).map(|m| m.len()).unwrap_or(0);
-    println!("  -> {} ({})", wasm_rel.display(), human_size(size));
-    check(&dir)
-}
-
-fn crate_name(cargo_toml: &Path) -> Result<String, String> {
-    let src = std::fs::read_to_string(cargo_toml).map_err(|e| format!("{}: {e}", cargo_toml.display()))?;
-    let doc: toml::Table = src.parse().map_err(|e| format!("{}: {e}", cargo_toml.display()))?;
-    let package = doc.get("package").and_then(|p| p.as_table());
-    let lib_name = doc.get("lib").and_then(|l| l.get("name")).and_then(|n| n.as_str());
-    lib_name
-        .or_else(|| package.and_then(|p| p.get("name")).and_then(|n| n.as_str()))
-        .map(str::to_owned)
-        .ok_or_else(|| format!("{}: no [package] name", cargo_toml.display()))
-}
-
-/// Installs the target through rustup when it is missing (no-op without rustup).
-fn ensure_wasm_target() {
-    let Ok(out) = Command::new("rustup").args(["target", "list", "--installed"]).output() else { return };
-    if String::from_utf8_lossy(&out.stdout).lines().any(|l| l.trim() == "wasm32-wasip2") {
-        return;
-    }
-    println!("installing the wasm32-wasip2 target");
-    let _ = Command::new("rustup").args(["target", "add", "wasm32-wasip2"]).status();
-}
-
-/// Validates `dir` exactly as Install from Disk would, and checks the
-/// component imports only the plugin API.
-fn check(dir: &Path) -> Result<(), String> {
-    let dir = canonical(dir)?;
-    let scratch = std::env::temp_dir().join(format!("openidea-plugin-check-{}", std::process::id()));
-    let result = (|| {
-        let host = PluginHost::new(scratch.clone(), Arc::new(|_: Option<&str>, _| {}), Limits::default())
-            .map_err(|e| e.to_string())?;
-        let preview = host.preview_install(&dir).map_err(|e| e.to_string())?;
-        let manifest = Manifest::load(&dir)?;
-        println!("{} {} — {}", preview.id, preview.version, preview.name);
-        if manifest.legacy {
-            println!("  note: plugin.toml uses the 0.1 format (`openidea-api`); see plugins/README.md to move to 0.2");
-        }
-        if let Some(wasm) = &manifest.wasm {
-            let engine = PluginEngine::new()?;
-            let component = engine.compile(&dir.join(wasm))?;
-            let built_for = engine.check_component(&component)?;
-            let size = std::fs::metadata(dir.join(wasm)).map(|m| m.len()).unwrap_or(0);
-            let api = built_for.map(|v| format!(", plugin API {}.{}", v.major, v.minor)).unwrap_or_default();
-            println!("  code: {} ({}{api})", wasm.display(), human_size(size));
-        } else {
-            println!("  code: none (contributions only)");
-        }
-        if !manifest.activation.is_empty() {
-            let events: Vec<String> = manifest.activation.iter().map(ToString::to_string).collect();
-            println!("  activation: {}", events.join(", "));
-        }
-        for c in &preview.contributions {
-            println!("  contributes {} × {}", c.count, c.point);
-        }
-        for c in &preview.capabilities {
-            let kind = if c.optional { "optional" } else { "required" };
-            println!("  capability {} ({kind}, {:?} risk): {}", c.id, c.risk, c.description);
-        }
-        for w in &preview.warnings {
-            println!("  warning: {w}");
-        }
-        println!("ok");
-        Ok(())
-    })();
-    let _ = std::fs::remove_dir_all(&scratch);
-    result
-}
-
-fn human_size(bytes: u64) -> String {
-    match bytes {
-        b if b >= 1 << 20 => format!("{:.1} MiB", b as f64 / (1 << 20) as f64),
-        b if b >= 1 << 10 => format!("{:.1} KiB", b as f64 / 1024.0),
-        b => format!("{b} B"),
-    }
-}
-
-// ---------------------------------------------------------------- link
-
-fn plugins_dir() -> Result<PathBuf, String> {
-    if let Some(dir) = std::env::var_os("OPENIDEA_PLUGINS_DIR") {
-        return Ok(PathBuf::from(dir));
-    }
-    dirs::data_dir()
-        .map(|d| d.join("ai.l0ng.openidea").join("plugins"))
-        .ok_or_else(|| "cannot find the app data directory; set OPENIDEA_PLUGINS_DIR".into())
-}
-
-#[derive(Default, serde::Serialize, serde::Deserialize)]
-struct Links {
-    #[serde(default)]
-    paths: Vec<PathBuf>,
-}
-
-fn read_links(file: &Path) -> Result<Links, String> {
-    match std::fs::read_to_string(file) {
-        Ok(s) => serde_json::from_str(&s).map_err(|e| format!("{}: {e}", file.display())),
-        Err(e) if e.kind() == std::io::ErrorKind::NotFound => Ok(Links::default()),
-        Err(e) => Err(format!("{}: {e}", file.display())),
-    }
-}
-
-fn link(dir: &Path, add: bool) -> Result<(), String> {
-    let plugins = plugins_dir()?;
-    let file = plugins.join("links.json");
-    let mut links = read_links(&file)?;
-    let dir = if add {
-        let dir = canonical(dir)?;
-        let m = Manifest::load(&dir)?;
-        if let Some(wasm) = &m.wasm
-            && !dir.join(wasm).is_file()
-        {
-            println!("note: {} does not exist yet; run `openidea-plugin build` first", wasm.display());
-        }
-        if links.paths.contains(&dir) {
-            println!("{} is already linked", dir.display());
-            return Ok(());
-        }
-        println!("linked {} ({})", m.id, dir.display());
-        links.paths.push(dir.clone());
-        dir
-    } else {
-        let dir = dunce::canonicalize(dir).unwrap_or_else(|_| dir.to_path_buf());
-        let before = links.paths.len();
-        links.paths.retain(|p| p != &dir);
-        if links.paths.len() == before {
-            return Err(format!("{} is not linked", dir.display()));
-        }
-        println!("unlinked {}", dir.display());
-        dir
-    };
-    let _ = dir;
-    std::fs::create_dir_all(&plugins).map_err(|e| format!("{}: {e}", plugins.display()))?;
-    let json = serde_json::to_string_pretty(&links).map_err(|e| e.to_string())?;
-    let tmp = file.with_extension("json.tmp");
-    std::fs::write(&tmp, json)
-        .and_then(|()| std::fs::rename(&tmp, &file))
-        .map_err(|e| format!("{}: {e}", file.display()))?;
-    println!("open Settings › Plugins in OpenIDEA to load the change");
-    Ok(())
-}
-
-fn list_links() -> Result<(), String> {
-    let links = read_links(&plugins_dir()?.join("links.json"))?;
-    if links.paths.is_empty() {
-        println!("no linked plugins");
-    }
-    for p in links.paths {
-        let id = Manifest::load(&p).map(|m| m.id).unwrap_or_else(|e| format!("invalid: {e}"));
-        println!("{id}\t{}", p.display());
-    }
-    Ok(())
-}
-
-// ---------------------------------------------------------------- distribution
-
-use ide_extension::package::{self, Index, IndexEntry, KeyEntry, PublisherKey};
-
-fn read_key(path: &str) -> Result<PublisherKey, String> {
-    PublisherKey::from_base64(&std::fs::read_to_string(path).map_err(|e| format!("{path}: {e}"))?)
-}
-
-fn cmd_keygen(args: &[String]) -> Result<(), String> {
-    let a = Args::parse(args, &[], &[])?;
-    let [file] = a.positional.as_slice() else { return Err("usage: openidea-plugin keygen <key-file>".into()) };
-    if Path::new(file).exists() {
-        return Err(format!("{file} exists; not overwriting a key"));
-    }
-    let mut seed = [0u8; 32];
-    getrandom::fill(&mut seed).map_err(|e| format!("random: {e}"))?;
-    let key = PublisherKey::from_seed(seed);
-    std::fs::write(file, key.seed_base64()).map_err(|e| format!("{file}: {e}"))?;
-    #[cfg(unix)]
-    {
-        use std::os::unix::fs::PermissionsExt;
-        let _ = std::fs::set_permissions(file, std::fs::Permissions::from_mode(0o600));
-    }
-    println!("public key: {}", key.public_base64());
-    println!("register it with your publisher id in the marketplace index; keep {file} secret");
-    Ok(())
-}
-
-/// A scratch host to list a package's files as the IDE would.
-fn with_scratch_host<T>(f: impl FnOnce(&PluginHost) -> Result<T, String>) -> Result<T, String> {
-    let scratch = std::env::temp_dir().join(format!("openidea-plugin-pack-{}", std::process::id()));
-    let result = PluginHost::new(scratch.clone(), Arc::new(|_: Option<&str>, _| {}), Limits::default())
-        .map_err(|e| e.to_string())
-        .and_then(|h| f(&h));
-    let _ = std::fs::remove_dir_all(&scratch);
-    result
-}
-
-fn cmd_pack(args: &[String]) -> Result<(), String> {
-    let a = Args::parse(args, &[], &["key", "publisher", "out"])?;
-    let dir = canonical(&a.dir()?)?;
-    check(&dir)?;
-    let manifest = Manifest::load(&dir)?;
-    let mut files = with_scratch_host(|h| h.package_files_of(&dir).map_err(|e| e.to_string()))?;
-    let digest = package::package_digest(&dir, &files).map_err(|e| e.to_string())?;
-    let signature = match (a.value("key"), a.value("publisher")) {
-        (Some(key), Some(publisher)) => {
-            if !manifest.id.starts_with(&format!("{publisher}.")) {
-                return Err(format!("publisher {publisher:?} may only sign plugins named {publisher}.*"));
-            }
-            Some(read_key(key)?.sign(publisher, &manifest.id, &manifest.version, &digest))
-        }
-        (None, None) => None,
-        _ => return Err("--key and --publisher go together".into()),
-    };
-    for lic in ["LICENSE", "LICENSE.md", "LICENSE.txt", "NOTICE", "NOTICE.md", "COPYING", "README.md"] {
-        if dir.join(lic).is_file() {
-            files.push(PathBuf::from(lic));
-        }
-    }
-    let out = a.value("out").map(PathBuf::from).unwrap_or_else(|| {
-        PathBuf::from(format!("{}-{}.{}", manifest.id, manifest.version, package::PACKAGE_EXTENSION))
-    });
-    package::pack(&dir, &files, &out, signature.as_ref())?;
-    let size = std::fs::metadata(&out).map(|m| m.len()).unwrap_or(0);
-    let signed = signature.as_ref().map_or("unsigned".to_owned(), |s| format!("signed by {}", s.publisher));
-    println!("-> {} ({}, {signed})", out.display(), human_size(size));
-    Ok(())
-}
-
-fn cmd_index(args: &[String]) -> Result<(), String> {
-    let a = Args::parse(args, &[], &["publisher", "name", "key", "out"])?;
-    let dir = canonical(&a.dir()?)?;
-    let publisher = a.value("publisher").ok_or("--publisher is required")?;
-    let name = a.value("name").unwrap_or(publisher);
-    let key = read_key(a.value("key").ok_or("--key is required")?)?;
-    let out = a.value("out").map(PathBuf::from).unwrap_or_else(|| dir.join("index.json"));
-    // Revocations and other publishers of an existing index are kept.
-    let mut index = match std::fs::read_to_string(&out) {
-        Ok(text) => Index::parse(&text)?,
-        Err(_) => Index { format: package::INDEX_FORMAT, ..Index::default() },
-    };
-    // Earlier keys of the publisher stay listed (packages they signed remain valid until revoked).
-    let current = key.public_base64();
-    let earlier: Vec<KeyEntry> = index
-        .publishers
-        .iter()
-        .filter(|p| p.id == publisher)
-        .flat_map(|p| p.keys.iter().filter(|k| k.key != current).cloned())
-        .collect();
-    index.publishers.retain(|p| p.id != publisher);
-    let keys: Vec<KeyEntry> = std::iter::once(KeyEntry { key: current, revoked: false }).chain(earlier).collect();
-    index.publishers.push(package::Publisher { id: publisher.into(), name: name.into(), keys });
-    index.plugins.clear();
-    let mut packages: Vec<PathBuf> = std::fs::read_dir(&dir)
-        .map_err(|e| e.to_string())?
-        .flatten()
-        .map(|e| e.path())
-        .filter(|p| p.extension().is_some_and(|e| e == package::PACKAGE_EXTENSION))
-        .collect();
-    packages.sort();
-    for path in packages {
-        let scratch = std::env::temp_dir().join(format!("openidea-plugin-index-{}", std::process::id()));
-        let _ = std::fs::remove_dir_all(&scratch);
-        let unpacked = package::unpack(&path, &scratch)?;
-        let entry = (|| {
-            let m = Manifest::load(&scratch)?;
-            let files = with_scratch_host(|h| h.package_files_of(&scratch).map_err(|e| e.to_string()))?;
-            let digest = package::package_digest(&scratch, &files).map_err(|e| e.to_string())?;
-            let sig = unpacked.signature.as_ref().ok_or_else(|| format!("{}: not signed", path.display()))?;
-            sig.check(&m.id, &m.version, &digest).map_err(|e| format!("{}: {e}", path.display()))?;
-            Ok::<_, String>(IndexEntry {
-                id: m.id.clone(),
-                name: m.name.clone(),
-                version: m.version.clone(),
-                description: m.description.clone(),
-                authors: m.authors.clone(),
-                publisher: sig.publisher.clone(),
-                download: path.file_name().map(|n| n.to_string_lossy().into_owned()).unwrap_or_default(),
-                digest,
-                capabilities: m.capabilities.all().map(|c| c.to_string()).collect(),
-            })
-        })();
-        let _ = std::fs::remove_dir_all(&scratch);
-        let entry = entry?;
-        println!("  {} {}", entry.id, entry.version);
-        index.plugins.push(entry);
-    }
-    let json = serde_json::to_string_pretty(&index).map_err(|e| e.to_string())?;
-    std::fs::write(&out, json).map_err(|e| format!("{}: {e}", out.display()))?;
-    println!("-> {} ({} plugins)", out.display(), index.plugins.len());
-    Ok(())
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn names() {
-        assert_eq!(slugify("My Cool_Plugin"), "my-cool-plugin");
-        assert_eq!(slugify("acme.Tools"), "acme.tools");
-        assert_eq!(title_case("material-icons"), "Material Icons");
-        assert_eq!(
-            relative(Path::new("/a/b/plugins/x"), Path::new("/a/b/sdk/rust/p")).unwrap(),
-            PathBuf::from("../../sdk/rust/p")
-        );
-        assert_eq!(relative(Path::new("/x/y"), Path::new("/z")), None);
-    }
-
-    #[test]
-    fn every_template_is_a_valid_package() {
-        for t in templates::Template::ALL {
-            let dir =
-                std::env::temp_dir().join(format!("openidea-plugin-template-{}-{}", t.label(), std::process::id()));
-            let _ = std::fs::remove_dir_all(&dir);
-            let vars = templates::Vars { id: "acme.sample", name: "Sample", sdk: Some("../sdk") };
-            for (rel, content) in templates::render(t, &vars) {
-                let path = dir.join(rel);
-                std::fs::create_dir_all(path.parent().unwrap()).unwrap();
-                std::fs::write(path, content).unwrap();
-            }
-            let m = Manifest::load(&dir).unwrap_or_else(|e| panic!("{}: {e}", t.label()));
-            assert_eq!(m.id, "acme.sample");
-            if m.wasm.is_none() {
-                check(&dir).unwrap_or_else(|e| panic!("{}: {e}", t.label()));
-            }
-            std::fs::remove_dir_all(&dir).unwrap();
-        }
-    }
-}
@@ -1,278 +0,0 @@
-//! The files of `openidea-plugin new`. Placeholders: `__ID__` (plugin id),
-//! `__SLUG__` (last id segment), `__NAME__`, `__CRATE__`, `__SDK__`.
-
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub enum Template {
-    Command,
-    Theme,
-    IconTheme,
-    Language,
-}
-
-impl Template {
-    pub const ALL: [Template; 4] = [Self::Command, Self::Theme, Self::IconTheme, Self::Language];
-
-    pub fn parse(s: &str) -> Result<Self, String> {
-        Self::ALL
-            .into_iter()
-            .find(|t| t.label() == s)
-            .ok_or_else(|| format!("unknown template {s:?} (command, theme, icon-theme, language)"))
-    }
-
-    pub fn label(self) -> &'static str {
-        match self {
-            Self::Command => "command",
-            Self::Theme => "theme",
-            Self::IconTheme => "icon-theme",
-            Self::Language => "language",
-        }
-    }
-}
-
-pub struct Vars<'a> {
-    pub id: &'a str,
-    pub name: &'a str,
-    pub sdk: Option<&'a str>,
-}
-
-/// `(relative path, contents)` of every file of the template.
-pub fn render(template: Template, vars: &Vars) -> Vec<(String, String)> {
-    let slug = vars.id.rsplit('.').next().unwrap_or(vars.id).to_owned();
-    let crate_name = format!("openidea-plugin-{}", vars.id.replace('.', "-"));
-    let fill = |s: &str| {
-        s.replace("__ID__", vars.id)
-            .replace("__SLUG__", &slug)
-            .replace("__NAME__", vars.name)
-            .replace("__CRATE__", &crate_name)
-            .replace("__SDK__", vars.sdk.unwrap_or(""))
-            // The theme files come from the Harbor Night plugin.
-            .replace("harbor-night", &slug)
-            .replace("Harbor Night", vars.name)
-    };
-    let files: Vec<(String, &str)> = match template {
-        Template::Command => vec![
-            ("plugin.toml".into(), COMMAND_MANIFEST),
-            ("Cargo.toml".into(), COMMAND_CARGO),
-            ("src/lib.rs".into(), COMMAND_LIB),
-            (".gitignore".into(), "/target\n"),
-            ("README.md".into(), COMMAND_README),
-        ],
-        Template::Theme => vec![
-            ("plugin.toml".into(), THEME_MANIFEST),
-            (format!("themes/{slug}.theme.json"), THEME_UI),
-            (format!("themes/{slug}.scheme.json"), THEME_SCHEME),
-        ],
-        Template::IconTheme => vec![
-            ("plugin.toml".into(), ICON_MANIFEST),
-            ("icons/theme.json".into(), ICON_THEME),
-            ("icons/file.svg".into(), ICON_FILE),
-            ("icons/folder.svg".into(), ICON_FOLDER),
-            ("icons/folder-open.svg".into(), ICON_FOLDER_OPEN),
-            ("icons/markdown.svg".into(), ICON_MARKDOWN),
-        ],
-        Template::Language => {
-            vec![("plugin.toml".into(), LANGUAGE_MANIFEST), (format!("languages/{slug}.toml"), LANGUAGE_DEF)]
-        }
-    };
-    files.into_iter().map(|(path, content)| (path, fill(content))).collect()
-}
-
-const COMMAND_MANIFEST: &str = r#"id = "__ID__"
-name = "__NAME__"
-version = "0.1.0"
-description = "Adds two sample commands."
-authors = []
-engines.openidea = "^1.0"
-# Built by `openidea-plugin build`. The code is loaded the first time one of
-# its commands runs; the commands below show in Find Action before that.
-wasm = "dist/plugin.wasm"
-
-# What the code may do. The user approves these when installing.
-[capabilities]
-required = ["editor.read"]
-
-[[contributes.commands]]
-id = "say-hello"
-title = "__NAME__: Say Hello"
-category = "__NAME__"
-
-[[contributes.commands]]
-id = "line-count"
-title = "__NAME__: Line Count of Active File"
-category = "__NAME__"
-"#;
-
-const COMMAND_CARGO: &str = r#"[package]
-name = "__CRATE__"
-version = "0.1.0"
-edition = "2024"
-publish = false
-
-# A plugin builds on its own (target wasm32-wasip2), outside any IDE workspace.
-[workspace]
-
-[lib]
-crate-type = ["cdylib", "rlib"]
-
-[dependencies]
-openidea-plugin = { path = "__SDK__" }
-
-[profile.release]
-opt-level = "s"
-lto = true
-strip = true
-codegen-units = 1
-panic = "abort"
-"#;
-
-const COMMAND_LIB: &str = r#"//! __NAME__: an OpenIDEA plugin.
-
-use openidea_plugin::{Invocation, NotificationLevel, Plugin, host, register_plugin};
-
-#[derive(Default)]
-pub struct Main {
-    greetings: u32,
-}
-
-impl Plugin for Main {
-    fn run_command(&mut self, id: &str, ctx: &Invocation, _arg: Option<&str>) -> Result<Option<String>, String> {
-        match id {
-            "say-hello" => {
-                // Instance state lasts until the plugin is idle for a while;
-                // keep what must survive in `host::storage`.
-                self.greetings += 1;
-                let body = format!("Hello #{} from __NAME__!", self.greetings);
-                host::notify(NotificationLevel::Info, "__NAME__", &body);
-                Ok(None)
-            }
-            "line-count" => {
-                let editor = ctx.editor().ok_or("no file is open")?;
-                let text = editor.document()?.text;
-                Ok(Some(format!("{} lines in {}", text.lines().count(), editor.path())))
-            }
-            _ => Err(format!("unknown command {id}")),
-        }
-    }
-}
-
-register_plugin!(Main);
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use openidea_plugin::mock::MockHost;
-
-    #[test]
-    fn says_hello() {
-        let host = MockHost::install();
-        let mut plugin = Main::default();
-        plugin.run_command("say-hello", &host.invocation(), None).unwrap();
-        plugin.run_command("say-hello", &host.invocation(), None).unwrap();
-        assert_eq!(host.notifications()[1].body, "Hello #2 from __NAME__!");
-    }
-
-    #[test]
-    fn counts_lines() {
-        let host = MockHost::install();
-        host.open_editor("/project/src/main.rs", "rust", "fn main() {\n}\n", &[]);
-        let out = Main::default().run_command("line-count", &host.invocation(), None).unwrap();
-        assert_eq!(out.as_deref(), Some("2 lines in /project/src/main.rs"));
-    }
-}
-"#;
-
-const COMMAND_README: &str = r#"# __NAME__
-
-An OpenIDEA plugin.
-
-```sh
-cargo test                       # logic, against the SDK's mock host
-openidea-plugin build            # → dist/plugin.wasm, validated like an install
-openidea-plugin link             # load this folder in the IDE (Settings › Plugins)
-```
-
-`plugin.toml` declares the commands, so they appear in Find Action before the
-code is loaded, and the capabilities the code needs. `src/lib.rs` implements
-them with the `openidea-plugin` SDK.
-"#;
-
-const THEME_MANIFEST: &str = r#"id = "__ID__"
-name = "__NAME__"
-version = "0.1.0"
-description = "A dark theme."
-authors = []
-engines.openidea = "^1.0"
-
-# One entry per theme. `editor-scheme` is optional: its tokens are merged over
-# the theme's (IntelliJ's .theme.json + .icls pair). Reference: docs/plugins/themes.md.
-[[contributes.themes]]
-path = "themes/__SLUG__.theme.json"
-editor-scheme = "themes/__SLUG__.scheme.json"
-"#;
-
-const THEME_UI: &str = include_str!("../../../../../plugins/official/harbor-night/themes/harbor-night.theme.json");
-const THEME_SCHEME: &str = include_str!("../../../../../plugins/official/harbor-night/themes/harbor-night.scheme.json");
-
-const ICON_MANIFEST: &str = r#"id = "__ID__"
-name = "__NAME__"
-version = "0.1.0"
-description = "File and folder icons."
-authors = []
-engines.openidea = "^1.0"
-
-# Apply it in Settings › Plugins › __NAME__. SVGs are sanitised on install:
-# no scripts, event handlers, external references or entities.
-[[contributes.iconThemes]]
-id = "__SLUG__"
-label = "__NAME__"
-path = "icons/theme.json"
-"#;
-
-const ICON_THEME: &str = r#"{
-  "iconDefinitions": {
-    "file": "icons/file.svg",
-    "folder": "icons/folder.svg",
-    "folder-open": "icons/folder-open.svg",
-    "markdown": "icons/markdown.svg"
-  },
-  "file": "file",
-  "folder": "folder",
-  "folderExpanded": "folder-open",
-  "fileExtensions": { "md": "markdown", "markdown": "markdown" },
-  "fileNames": { "readme": "markdown" },
-  "folderNames": {}
-}
-"#;
-
-const ICON_FILE: &str = r##"<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill="#90a4ae" d="M4 1.5h5.5L13 5v9.5H4z"/><path fill="#cfd8dc" d="M9.5 1.5V5H13z"/></svg>
-"##;
-
-const ICON_FOLDER: &str = r##"<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill="#90a4ae" d="M1.5 3h5l1.5 1.5h6.5v9h-13z"/></svg>
-"##;
-
-const ICON_FOLDER_OPEN: &str = r##"<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill="#90a4ae" d="M1.5 3h5l1.5 1.5h6v2h-10l-2 7h-.5z"/><path fill="#b0bec5" d="M4 7.5h11.5l-2 6H2z"/></svg>
-"##;
-
-const ICON_MARKDOWN: &str = r##"<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><rect x="1" y="3.5" width="14" height="9" rx="1.5" fill="#42a5f5"/><path fill="#fff" d="M3 10.5v-5h1.5L6 7.5l1.5-2H9v5H7.5V8L6 10 4.5 8v2.5zm8 0L9.5 8h1V5.5H12V8h1z"/></svg>
-"##;
-
-const LANGUAGE_MANIFEST: &str = r#"id = "__ID__"
-name = "__NAME__"
-version = "0.1.0"
-description = "Language support for .__SLUG__ files: detection, comments and indentation."
-authors = []
-engines.openidea = "^1.0"
-
-# Same format as languages/<id>.toml in the IDE repository.
-[[contributes.languages]]
-path = "languages/__SLUG__.toml"
-"#;
-
-const LANGUAGE_DEF: &str = r##"id = "__SLUG__"
-name = "__NAME__"
-extensions = ["__SLUG__"]
-line-comment = "#"
-indent = { tab-size = 2, insert-spaces = true }
-# Borrow an existing CodeMirror mode for instant highlighting.
-ui-mode = "Properties files"
-"##;
@@ -1,8 +1,6 @@
 //! `openidea-server --stdio`: the IDE backend for remote development, serving
 //! one desktop client over stdin / stdout (started by the client over SSH).

-use ide_host::plugins::remote::{RemotePluginLanguages, SYNC_COMMAND};
-use ide_host::plugins::remote_host::RemotePlugins;
 use ide_host::rpc::{self, Dispatcher};
 use ide_host::{Host, HostConfig};
 use ide_language::LanguageRegistry;
@@ -53,15 +51,10 @@ async fn run(base: PathBuf) -> i32 {
            return 1;
        }
    };
-    // The desktop's plugin languages (`plugin_sync_languages`); programs pinned on this machine.
-    let plugin_languages = RemotePluginLanguages::new(Some(&data_dir));
-    languages.attach_plugins(plugin_languages.store().clone());
    let peer = Arc::new(OnceLock::new());
    let sink_peer = peer.clone();
-    let plugins_data = data_dir.clone();
    let host = Arc::new(Host::new(HostConfig {
        config_dir,
-        local_data_dir: data_dir.clone(),
        data_dir,
        languages,
        syntax: Arc::default(),
@@ -70,31 +63,8 @@ async fn run(base: PathBuf) -> i32 {
        runtime: tokio::runtime::Handle::current(),
        project_environment: true,
    }));
-    // The desktop's code plugins run here, next to the project (`plugin_sync_packages`).
-    let plugins = match RemotePlugins::start(&plugins_data, &host, peer.clone()) {
-        Ok(p) => Some(p),
-        Err(e) => {
-            tracing::warn!("plugins are unavailable: {e}");
-            None
-        }
-    };
    tracing::info!("openidea-server {} ready", env!("CARGO_PKG_VERSION"));
-    let mut dispatcher = Dispatcher::standard();
-    if let Some(plugins) = &plugins {
-        plugins.register(&mut dispatcher);
-    }
-    dispatcher.add(SYNC_COMMAND, move |c| {
-        let remote = plugin_languages.clone();
-        async move {
-            let report = remote.sync(c.arg("languages")?);
-            c.host.plugin_languages_changed();
-            Ok(report)
-        }
-    });
-    rpc::serve(host.clone(), dispatcher, peer, tokio::io::stdin(), tokio::io::stdout()).await;
-    if let Some(plugins) = &plugins {
-        plugins.host().shutdown();
-    }
+    rpc::serve(host.clone(), Dispatcher::standard(), peer, tokio::io::stdin(), tokio::io::stdout()).await;
    // `process::exit` skips destructors: nothing started for the client may outlive it.
    if tokio::time::timeout(std::time::Duration::from_secs(10), host.shutdown()).await.is_err() {
        tracing::warn!("language servers did not shut down in time");
@@ -1,476 +0,0 @@
-//! Storage policy and best-effort migration of rebuildable desktop data.
-
-use std::fs;
-use std::io;
-use std::path::{Path, PathBuf};
-
-/// Unknown entries and recovery/user content deliberately stay in roaming data.
-pub fn is_local(entry: &Path) -> bool {
-    ["tools", "language-server-runtimes", "index", "cache", "lsp", "notebook-runtime", "server", "logs"]
-        .iter()
-        .any(|root| entry.starts_with(root))
-        || entry.starts_with("agents/tools")
-        || entry == Path::new("agents/registry.json")
-        || (entry.components().count() == 1
-            && entry.file_name().is_some_and(|name| name.to_string_lossy().starts_with("java-usages-"))
-            && entry.extension().is_some_and(|ext| ext == "jar" || ext == "tmp"))
-}
-
-pub fn data_path(data: &Path, local: &Path, entry: &Path) -> PathBuf {
-    if is_local(entry) { local.join(entry) } else { data.join(entry) }
-}
-
-#[derive(Debug, PartialEq, Eq)]
-enum Action {
-    Skip,
-    Rename,
-}
-
-fn action(same_root: bool, source_exists: bool, target_exists: bool) -> Action {
-    if same_root || !source_exists || target_exists { Action::Skip } else { Action::Rename }
-}
-
-#[derive(Debug, PartialEq, Eq)]
-enum RenameFailure {
-    Copy,
-    KeepSource,
-}
-
-fn rename_failure(error: &io::Error) -> RenameFailure {
-    if error.kind() == io::ErrorKind::CrossesDevices { RenameFailure::Copy } else { RenameFailure::KeepSource }
-}
-
-/// Only Windows splits these paths. Renames are cheap; cross-volume copies run in
-/// the background. Consumers always use Local, even when migration fails.
-pub fn migrate(data: &Path, local: &Path) {
-    if cfg!(target_os = "windows") && data != local {
-        migrate_entries(data, local);
-    }
-}
-
-fn migrate_entries(data: &Path, local: &Path) {
-    let mut entries: Vec<PathBuf> = [
-        "language-server-runtimes",
-        "index",
-        "cache",
-        "lsp",
-        "notebook-runtime",
-        "server",
-        "java-usages-1.1.1.jar",
-        "java-usages-1.2.0.jar",
-        "agents/registry.json",
-    ]
-    .into_iter()
-    .map(PathBuf::from)
-    .collect();
-    // Virtual environments contain absolute interpreter paths. Keep the old copy
-    // intact; these tools are installed afresh in Local when requested. Registry
-    // agents also have absolute commands in user config, so leave legacy installs.
-    match fs::read_dir(data.join("tools")) {
-        Ok(tools) => {
-            for entry in tools {
-                let entry = match entry {
-                    Ok(entry) => entry,
-                    Err(error) => {
-                        tracing::warn!(%error, "cannot enumerate legacy tool; keeping old data, using Local");
-                        continue;
-                    }
-                };
-                let name = entry.file_name();
-                let venv = ide_tools::registry::TOOLS.iter().any(|tool| {
-                    name == tool.name && matches!(tool.method, ide_tools::registry::Method::PipVenv { .. })
-                });
-                if venv {
-                    tracing::info!(?name, "leaving non-relocatable legacy tool; reinstall into Local when needed");
-                } else {
-                    entries.push(Path::new("tools").join(name));
-                }
-            }
-        }
-        Err(error) if error.kind() == io::ErrorKind::NotFound => {}
-        Err(error) => tracing::warn!(%error, "cannot enumerate legacy tools; keeping old data, using Local"),
-    }
-    let mut copies = Vec::new();
-    for entry in entries {
-        let source = data.join(&entry);
-        let target = data_path(data, local, &entry);
-        match try_rename(&source, &target) {
-            Ok(true) => copies.push((source, target)),
-            Ok(false) => {}
-            Err(error) => {
-                tracing::warn!(?source, ?target, %error, "data migration failed; keeping old data, using Local")
-            }
-        }
-    }
-    if !copies.is_empty() {
-        let result = std::thread::Builder::new().name("openidea-data-migration".into()).spawn(move || {
-            for (source, target) in copies {
-                tracing::info!(?source, ?target, "copying legacy data in background");
-                if let Err(error) = copy_then_remove(&source, &target) {
-                    tracing::warn!(?source, ?target, %error, "data copy failed; keeping old data, using Local");
-                }
-            }
-        });
-        if let Err(error) = result {
-            tracing::warn!(%error, "cannot start data migration worker; keeping old data, using Local");
-        }
-    }
-}
-
-/// Returns true when a cross-volume copy is needed.
-fn try_rename(source: &Path, target: &Path) -> io::Result<bool> {
-    if action(source == target, source.try_exists()?, target.try_exists()?) == Action::Skip {
-        return Ok(false);
-    }
-    if fs::symlink_metadata(source)?.file_type().is_symlink() {
-        return Err(io::Error::other("refusing to migrate a linked data entry"));
-    }
-    fs::create_dir_all(target.parent().ok_or_else(|| io::Error::other("missing data parent"))?)?;
-    // Relative wrappers work at the old location too, so even a failed rename
-    // leaves the old installation usable and needs no rollback.
-    relocate_shims(source, source)?;
-    match rename_missing(source, target) {
-        Ok(()) => {
-            tracing::info!(?source, ?target, "moved legacy data to Local");
-            Ok(false)
-        }
-        Err(error) if rename_failure(&error) == RenameFailure::Copy => Ok(true),
-        Err(error) => Err(error),
-    }
-}
-
-fn copy_then_remove(source: &Path, target: &Path) -> io::Result<()> {
-    if target.try_exists()? {
-        return Ok(());
-    }
-    let parent = target.parent().ok_or_else(|| io::Error::other("missing data parent"))?;
-    fs::create_dir_all(parent)?;
-    let staging = parent.join(format!(".migration-{}", uuid::Uuid::new_v4()));
-    let result = (|| {
-        copy_tree(source, &staging)?;
-        relocate_shims(&staging, source)?;
-        // A tool may have been installed or a cache rebuilt while copying. Never
-        // merge into or overwrite it, and retain the original for recovery.
-        if target.try_exists()? {
-            tracing::info!(?source, ?target, "Local data created during migration; retaining legacy copy");
-            return Ok(());
-        }
-        rename_missing(&staging, target)?;
-        remove_entry(source)?;
-        tracing::info!(?source, ?target, "copied legacy data to Local");
-        Ok(())
-    })();
-    if staging.exists() {
-        let _ = remove_entry(&staging);
-    }
-    result
-}
-
-// std::fs::rename may replace even an empty directory on modern Windows.
-#[cfg(windows)]
-fn rename_missing(source: &Path, target: &Path) -> io::Result<()> {
-    use std::os::windows::ffi::OsStrExt;
-    use windows_sys::Win32::Storage::FileSystem::MoveFileExW;
-
-    // canonicalize supplies extended-length paths, including redirected UNC roots.
-    let source = fs::canonicalize(source)?;
-    let target = fs::canonicalize(target.parent().ok_or_else(|| io::Error::other("missing data parent"))?)?
-        .join(target.file_name().ok_or_else(|| io::Error::other("missing data name"))?);
-    let wide = |path: &Path| -> io::Result<Vec<u16>> {
-        let mut value: Vec<u16> = path.as_os_str().encode_wide().collect();
-        if value.contains(&0) {
-            return Err(io::Error::new(io::ErrorKind::InvalidInput, "NUL in data path"));
-        }
-        value.push(0);
-        Ok(value)
-    };
-    let source = wide(&source)?;
-    let target = wide(&target)?;
-    // SAFETY: both paths are valid NUL-terminated UTF-16 buffers. No flags means
-    // neither replacement nor implicit cross-volume copying is permitted.
-    if unsafe { MoveFileExW(source.as_ptr(), target.as_ptr(), 0) } == 0 {
-        Err(io::Error::last_os_error())
-    } else {
-        Ok(())
-    }
-}
-
-// Filesystem tests run on Unix too; production migration is Windows-only.
-#[cfg(not(windows))]
-fn rename_missing(source: &Path, target: &Path) -> io::Result<()> {
-    if target.try_exists()? {
-        return Err(io::Error::from(io::ErrorKind::AlreadyExists));
-    }
-    fs::rename(source, target)
-}
-
-fn remove_entry(path: &Path) -> io::Result<()> {
-    if fs::symlink_metadata(path)?.is_dir() { fs::remove_dir_all(path) } else { fs::remove_file(path) }
-}
-
-fn copy_tree(source: &Path, target: &Path) -> io::Result<()> {
-    let metadata = fs::symlink_metadata(source)?;
-    if metadata.file_type().is_symlink() {
-        return Err(io::Error::other("refusing to follow a link during data migration"));
-    }
-    if metadata.is_dir() {
-        fs::create_dir(target)?;
-        for entry in fs::read_dir(source)? {
-            let entry = entry?;
-            copy_tree(&entry.path(), &target.join(entry.file_name()))?;
-        }
-    } else if metadata.is_file() {
-        fs::copy(source, target)?;
-    } else {
-        return Err(io::Error::other("unsupported data entry"));
-    }
-    Ok(())
-}
-
-/// Make our absolute .cmd wrappers relative to their bin directory. They remain
-/// valid in both locations if the move must be rolled back. npm shims already use
-/// relative paths; payloads and user configuration are never rewritten.
-fn relocate_shims(root: &Path, source: &Path) -> io::Result<()> {
-    if source.parent().and_then(Path::file_name).is_none_or(|name| name != "tools") {
-        return Ok(());
-    }
-    let bin = root.join("bin");
-    if !bin.is_dir() {
-        return Ok(());
-    }
-    for entry in fs::read_dir(bin)? {
-        let path = entry?.path();
-        if path.extension().is_none_or(|ext| ext != "cmd") {
-            continue;
-        }
-        let text = fs::read_to_string(&path)?;
-        if text.starts_with("@echo off\r\n") {
-            let updated = relative_wrapper(&text, source);
-            if updated != text {
-                fs::write(path, updated)?;
-            }
-        }
-    }
-    Ok(())
-}
-
-fn relative_wrapper(text: &str, source: &Path) -> String {
-    // PathBuf can contain both separators (notably roots joined with "tools/demo").
-    // Compare normalized paths, but retain every other byte of the managed wrapper.
-    let normalized = text.replace('\\', "/");
-    let prefix = source.to_string_lossy().replace('\\', "/");
-    #[cfg(windows)]
-    let (normalized, prefix) = (normalized.to_ascii_lowercase(), prefix.to_ascii_lowercase());
-    let mut updated = text.to_owned();
-    let offsets: Vec<_> = normalized.match_indices(&prefix).map(|(offset, _)| offset).collect();
-    for offset in offsets.into_iter().rev() {
-        let end = offset + prefix.len();
-        if normalized.as_bytes().get(end) == Some(&b'/') {
-            updated.replace_range(offset..end, "%~dp0..");
-        }
-    }
-    updated
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn wrappers_accept_mixed_separators_without_rewriting_neighbor_paths() {
-        let text = "@echo off\r\n\"C:\\old\\tools/demo\\payload.exe\" \"C:\\old\\tools/demo-other\\x\" %*\r\n";
-        assert_eq!(
-            relative_wrapper(text, Path::new("C:/old/tools/demo")),
-            "@echo off\r\n\"%~dp0..\\payload.exe\" \"C:\\old\\tools/demo-other\\x\" %*\r\n"
-        );
-    }
-
-    #[test]
-    fn storage_policy_is_conservative_and_preserves_unix_layout() {
-        for entry in [
-            "tools/jdks",
-            "language-server-runtimes",
-            "lsp/jdtls",
-            "index/x",
-            "cache/x",
-            "notebook-runtime",
-            "server",
-            "logs",
-            "agents/tools",
-            "agents/registry.json",
-            "java-usages-1.1.1.jar",
-            "java-usages-1.2.0.jar",
-        ] {
-            assert!(is_local(Path::new(entry)), "{entry}");
-            assert_eq!(
-                data_path(Path::new("roaming"), Path::new("local"), Path::new(entry)),
-                Path::new("local").join(entry)
-            );
-            assert_eq!(
-                data_path(Path::new("data"), Path::new("data"), Path::new(entry)),
-                Path::new("data").join(entry)
-            );
-        }
-        for entry in [
-            "git-credentials.json",
-            "history",
-            "remote",
-            "scratches",
-            "consoles",
-            "plugins",
-            "workspaces",
-            "agents/models.json",
-            "agents/project",
-            "unknown",
-        ] {
-            assert!(!is_local(Path::new(entry)), "{entry}");
-            assert_eq!(
-                data_path(Path::new("roaming"), Path::new("local"), Path::new(entry)),
-                Path::new("roaming").join(entry)
-            );
-        }
-    }
-
-    #[cfg(not(target_os = "windows"))]
-    #[test]
-    fn unix_startup_does_not_migrate_even_if_given_distinct_roots() {
-        assert_eq!(dirs::data_dir(), dirs::data_local_dir());
-        let tmp = tempfile::tempdir().unwrap();
-        let old = tmp.path().join("old");
-        let new = tmp.path().join("new");
-        fs::create_dir_all(old.join("index")).unwrap();
-        migrate(&old, &new);
-        assert!(old.join("index").exists());
-        assert!(!new.exists());
-    }
-
-    #[test]
-    fn decisions_cover_missing_existing_and_failed_renames() {
-        assert_eq!(action(true, true, false), Action::Skip);
-        assert_eq!(action(false, false, false), Action::Skip);
-        assert_eq!(action(false, true, true), Action::Skip);
-        assert_eq!(action(false, true, false), Action::Rename);
-        assert_eq!(rename_failure(&io::Error::from(io::ErrorKind::CrossesDevices)), RenameFailure::Copy);
-        for kind in [io::ErrorKind::PermissionDenied, io::ErrorKind::AlreadyExists, io::ErrorKind::NotFound] {
-            assert_eq!(rename_failure(&io::Error::from(kind)), RenameFailure::KeepSource);
-        }
-    }
-
-    #[test]
-    fn same_volume_moves_and_second_start_does_not_overwrite() {
-        let tmp = tempfile::tempdir().unwrap();
-        let old = tmp.path().join("old");
-        let new = tmp.path().join("new");
-        fs::create_dir_all(old.join("tools/demo/bin")).unwrap();
-        let wrapper = format!("@echo off\r\n\"{}/payload.exe\" %*\r\n", old.join("tools/demo").display());
-        fs::write(old.join("tools/demo/bin/demo.cmd"), wrapper).unwrap();
-        fs::create_dir_all(old.join("tools/ty/venv")).unwrap();
-        fs::write(old.join("git-credentials.json"), "secret").unwrap();
-        fs::create_dir_all(old.join("index")).unwrap();
-        migrate_entries(&old, &new);
-        assert!(!old.join("tools/demo").exists());
-        assert!(old.join("tools/ty/venv").exists());
-        assert!(old.join("git-credentials.json").exists());
-        assert!(fs::read_to_string(new.join("tools/demo/bin/demo.cmd")).unwrap().contains("%~dp0.."));
-        fs::create_dir_all(old.join("index")).unwrap();
-        fs::write(old.join("index/legacy"), "old").unwrap();
-        migrate_entries(&old, &new);
-        assert!(old.join("index/legacy").exists());
-        assert!(!new.join("index/legacy").exists());
-    }
-
-    #[cfg(unix)]
-    #[test]
-    fn copy_failure_does_not_publish_or_remove_source() {
-        let tmp = tempfile::tempdir().unwrap();
-        let old = tmp.path().join("old");
-        let new = tmp.path().join("new");
-        fs::create_dir(&old).unwrap();
-        fs::write(old.join("payload"), "old").unwrap();
-        std::os::unix::fs::symlink(old.join("payload"), old.join("link")).unwrap();
-        assert!(copy_then_remove(&old, &new).is_err());
-        assert!(old.join("payload").exists());
-        assert!(!new.exists());
-        assert_eq!(fs::read_dir(tmp.path()).unwrap().count(), 1);
-    }
-
-    #[test]
-    fn staged_copy_publishes_complete_data_and_preserves_existing_target() {
-        let tmp = tempfile::tempdir().unwrap();
-        let old = tmp.path().join("old");
-        let new = tmp.path().join("new");
-        fs::create_dir_all(old.join("nested")).unwrap();
-        fs::write(old.join("nested/tool.exe"), "payload").unwrap();
-        copy_then_remove(&old, &new).unwrap();
-        assert!(!old.exists());
-        assert_eq!(fs::read_to_string(new.join("nested/tool.exe")).unwrap(), "payload");
-        fs::create_dir(&old).unwrap();
-        fs::write(old.join("legacy"), "old").unwrap();
-        copy_then_remove(&old, &new).unwrap();
-        assert!(old.join("legacy").exists());
-        assert!(!new.join("legacy").exists());
-        let old_file = tmp.path().join("registry-old.json");
-        let new_file = tmp.path().join("registry-new.json");
-        fs::write(&old_file, "cached registry").unwrap();
-        copy_then_remove(&old_file, &new_file).unwrap();
-        assert!(!old_file.exists());
-        assert_eq!(fs::read_to_string(new_file).unwrap(), "cached registry");
-    }
-
-    #[test]
-    fn publication_refuses_existing_files_and_empty_directories() {
-        let tmp = tempfile::tempdir().unwrap();
-        for directory in [false, true] {
-            let old = tmp.path().join(if directory { "old-dir" } else { "old-file" });
-            let new = tmp.path().join(if directory { "new-dir" } else { "new-file" });
-            if directory {
-                fs::create_dir(&old).unwrap();
-                fs::create_dir(&new).unwrap();
-                fs::write(old.join("payload"), "old").unwrap();
-            } else {
-                fs::write(&old, "old").unwrap();
-                fs::write(&new, "new").unwrap();
-            }
-            assert!(rename_missing(&old, &new).is_err());
-            assert!(old.exists() && new.exists());
-            if directory {
-                assert!(!new.join("payload").exists());
-            } else {
-                assert_eq!(fs::read_to_string(new).unwrap(), "new");
-            }
-        }
-    }
-
-    #[test]
-    fn wrapper_failure_keeps_the_old_installation() {
-        let tmp = tempfile::tempdir().unwrap();
-        let old = tmp.path().join("old/tools/demo");
-        let new = tmp.path().join("new/tools/demo");
-        fs::create_dir_all(old.join("bin")).unwrap();
-        fs::write(old.join("bin/demo.cmd"), [0xff, 0xfe]).unwrap();
-        assert!(try_rename(&old, &new).is_err());
-        assert!(old.join("bin/demo.cmd").exists());
-        assert!(!new.exists());
-    }
-
-    #[test]
-    fn failures_keep_source_without_publishing_partial_data() {
-        let tmp = tempfile::tempdir().unwrap();
-        let old = tmp.path().join("old");
-        let blocker = tmp.path().join("blocker");
-        fs::create_dir(&old).unwrap();
-        fs::write(old.join("payload"), "old").unwrap();
-        fs::write(&blocker, "file").unwrap();
-        assert!(try_rename(&old, &blocker.join("target")).is_err());
-        assert!(copy_then_remove(&old, &blocker.join("target")).is_err());
-        assert!(old.join("payload").exists());
-        assert!(copy_then_remove(&tmp.path().join("missing"), &tmp.path().join("new")).is_err());
-        assert!(!tmp.path().join("new").exists());
-        assert!(
-            !fs::read_dir(tmp.path())
-                .unwrap()
-                .flatten()
-                .any(|e| e.file_name().to_string_lossy().starts_with(".migration-"))
-        );
-    }
-}
@@ -2,48 +2,16 @@

 use crate::Host;
 use ide_core::event::NotifyLevel;
-use ide_core::settings::{ExternalFormatter, LanguagesSettings};
+use ide_core::settings::PrettierSettings;
 use ide_core::{DocId, IdeError, IdeEvent, IdeResult, Range, TextEdit};
-use ide_language::LanguageConfig;
+use ide_language::FormatterConfig;
 use ide_lsp::types::FormatOptions;
 use ide_tools::{Tools, formatter};
-use std::path::Path;

-const OXFMT_CONFIGS: [&str; 4] = [".oxfmtrc.json", ".oxfmtrc.jsonc", "oxfmt.config.ts", "oxfmt.config.mts"];
-
-/// The external formatter of a file, for a language with an external formatter.
-/// `forced` names the tool (Reformat with Prettier/oxfmt). Otherwise oxfmt
-/// applies when it is enabled for the language and either an oxfmt
-/// configuration is found above the file or oxfmt is the selected provider;
-/// else Prettier, when it is enabled. Turning Prettier off for a language
-/// leaves it to the language server, not to oxfmt.
-fn external_tool(
-    forced: Option<ExternalFormatter>,
-    language: Option<&LanguageConfig>,
-    file: &Path,
-    settings: &LanguagesSettings,
-) -> IdeResult<Option<ExternalFormatter>> {
-    use ExternalFormatter::{Oxfmt, Prettier};
-    let Some(language) = language.filter(|l| l.formatter.as_ref().is_some_and(|f| f.tool == "prettier")) else {
-        return match forced {
-            Some(tool) => Err(IdeError::invalid(format!(
-                "{} cannot format {} files",
-                formatter::display_name(tool.name()),
-                language.map_or("these", |l| l.name.as_str())
-            ))),
-            None => Ok(None),
-        };
-    };
-    if forced.is_some() {
-        return Ok(forced);
-    }
-    let enabled = |tool| settings.formatter(tool).languages.iter().any(|l| l == language.id.as_str());
-    let oxfmt_config = || OXFMT_CONFIGS.iter().any(|name| formatter::find_up(file, Path::new(name)).is_some());
-    Ok(if enabled(Oxfmt) && (settings.oxfmt.prefer || oxfmt_config()) {
-        Some(Oxfmt)
-    } else {
-        enabled(Prettier).then_some(Prettier)
-    })
+fn external_selected(config: Option<&FormatterConfig>, language: &str, settings: &PrettierSettings, lsp: bool) -> bool {
+    config.is_some_and(|c| c.tool == "prettier")
+        && settings.languages.iter().any(|l| l == language)
+        && (settings.prefer || !lsp)
 }

 pub async fn format(
@@ -56,43 +24,36 @@ pub async fn format(
    let project = host.project(window)?;
    let snap = project.documents.snapshot(doc)?;
    let settings = project.settings.effective();
+    let prettier = &settings.languages.prettier;
    let language = project.languages.get(&snap.language);
-    let mut selected = external_tool(options.tool, language.as_ref(), &snap.path, &settings.languages)?;
-    if let Some(tool) = selected
-        && options.tool.is_none()
-        && !settings.languages.formatter(tool).prefer
-        && project.lsp.can_format(doc).await?
-    {
-        selected = None;
-    }
-    let Some(selected) = selected else {
+    let config = language.as_ref().and_then(|l| l.formatter.as_ref());
+    let candidate =
+        config.is_some_and(|c| c.tool == "prettier") && prettier.languages.iter().any(|l| l == snap.language.as_str());
+    let lsp = if candidate && !prettier.prefer { project.lsp.can_format(doc).await? } else { false };
+    if !external_selected(config, snap.language.as_str(), prettier, lsp) {
        if options.on_save && !settings.editor.format_on_save {
            return Ok(Vec::new());
        }
        return project.lsp.format(doc, range, options).await;
-    };
-    let tool_settings = settings.languages.formatter(selected);
-    if options.on_save && !tool_settings.run_on_save {
+    }
+    if options.on_save && !prettier.run_on_save {
        return Ok(Vec::new());
    }
    host.require_trust(window)?;
    if snap.read_only {
        return Err(IdeError::invalid("The file is read-only"));
    }
-    let config = language.and_then(|l| l.formatter).expect("external_tool selects languages with a formatter");
-    let tool = selected.name();
-    let name = formatter::display_name(tool);
-    let custom = ide_sdk::apply::setting_path(&project.root, &tool_settings.path);
-    let tools = Tools::new(&host.local_data_dir);
-    let whole_selection = range.is_some() && !formatter::supports_range(tool, &config);
+    let config = config.unwrap().clone();
+    let custom = ide_sdk::apply::setting_path(&project.root, &prettier.path);
+    let tools = Tools::new(&host.data_dir);
+    let whole_selection = range.is_some() && !config.range;
    let edits: IdeResult<Vec<TextEdit>> = tokio::task::spawn_blocking(move || {
        let text = ide_text::Document::new(&snap.text);
        let offsets = range.map(|r| (text.pos_to_offset(r.start), text.pos_to_offset(r.end)));
-        let mut command = tools.formatter_command(tool, &snap.path, custom.as_deref())?;
-        let dir = snap.path.parent().ok_or_else(|| IdeError::invalid(format!("{name}: file has no directory")))?;
-        command.current_dir(dir);
-        command.args(formatter::arguments(tool, &config, &snap.path, options.tab_size, options.insert_spaces, offsets));
-        let formatted = formatter::run(tool, command, &snap.text, &Default::default())?;
+        let mut command = tools.formatter_command(&config.tool, &snap.path, custom.as_deref())?;
+        command.current_dir(snap.path.parent().ok_or_else(|| IdeError::invalid("Prettier: file has no directory"))?);
+        command.args(formatter::arguments(&config, &snap.path, options.tab_size, options.insert_spaces, offsets));
+        let formatted = formatter::run(command, &snap.text, &Default::default())?;
        Ok(text
            .diff(&formatted)
            .changes
@@ -108,88 +69,39 @@ pub async fn format(
    if edits.is_ok() && whole_selection {
        project.sink.emit(IdeEvent::Notify {
            level: NotifyLevel::Info,
-            title: name.into(),
-            body: Some(format!(
-                "{name} does not support selection formatting for this language; formatted the whole file"
-            )),
+            title: "Prettier".into(),
+            body: Some(
+                "Prettier does not support selection formatting for this language; formatted the whole file".into(),
+            ),
        });
    }
-    edits.map_err(|e| e.with_tool(tool))
+    edits.map_err(|e| e.with_tool("prettier"))
 }

 #[cfg(test)]
 mod tests {
    use super::*;
-    use ExternalFormatter::{Oxfmt, Prettier};
-    use ide_core::LanguageId;
-    use ide_language::LanguageRegistry;
-
-    fn tool(
-        forced: Option<ExternalFormatter>,
-        language: &str,
-        file: &Path,
-        settings: &LanguagesSettings,
-    ) -> IdeResult<Option<ExternalFormatter>> {
-        let language = LanguageRegistry::load(None).unwrap().get(&LanguageId::new(language));
-        external_tool(forced, language.as_ref(), file, settings)
-    }

    #[test]
-    fn default_settings_give_every_external_formatter_language_to_prettier() {
-        let settings = LanguagesSettings::default();
-        let file = Path::new("/project/file");
-        for lang in LanguageRegistry::load(None).unwrap().all() {
-            let configured = lang.formatter.as_ref().is_some_and(|f| f.tool == "prettier");
-            let selected = external_tool(None, Some(&lang), file, &settings).unwrap();
-            assert_eq!(selected, configured.then_some(Prettier), "{}", lang.id);
+    fn language_enablement_and_preference_preserve_lsp_formatters() {
+        let languages = ide_language::LanguageRegistry::load(None).unwrap();
+        let mut settings = PrettierSettings::default();
+        for lang in languages.all() {
+            for lsp in [false, true] {
+                let configured = lang.formatter.as_ref().is_some_and(|f| f.tool == "prettier");
+                assert_eq!(
+                    external_selected(lang.formatter.as_ref(), lang.id.as_str(), &settings, lsp),
+                    configured && !lsp,
+                    "{}",
+                    lang.id
+                );
+            }
        }
-        assert_eq!(external_tool(None, None, file, &settings).unwrap(), None);
-    }
-
-    #[test]
-    fn oxfmt_config_selects_oxfmt_for_its_enabled_languages() {
-        let dir = tempfile::tempdir().unwrap();
-        let root = dir.path();
-        std::fs::create_dir_all(root.join("web/src")).unwrap();
-        let (web, api) = (root.join("web/src/app.ts"), root.join("api/main.ts"));
-        let mut settings = LanguagesSettings::default();
-        assert_eq!(tool(None, "typescript", &web, &settings).unwrap(), Some(Prettier));
-        for config in OXFMT_CONFIGS {
-            std::fs::write(root.join("web").join(config), "{}").unwrap();
-            assert_eq!(tool(None, "typescript", &web, &settings).unwrap(), Some(Oxfmt), "{config}");
-            assert_eq!(tool(None, "typescript", &api, &settings).unwrap(), Some(Prettier), "{config}");
-            std::fs::remove_file(root.join("web").join(config)).unwrap();
-        }
-        std::fs::write(root.join("web/.oxfmtrc.json"), "{}").unwrap();
-        settings.oxfmt.languages.retain(|l| l != "markdown");
-        assert_eq!(tool(None, "markdown", &web, &settings).unwrap(), Some(Prettier));
-        assert_eq!(tool(None, "typescript", &web, &settings).unwrap(), Some(Oxfmt));
-    }
-
-    #[test]
-    fn oxfmt_provider_selects_oxfmt_without_a_config_and_prettier_off_leaves_the_language_server() {
-        let file = Path::new("/project/src/app.ts");
-        let mut settings = LanguagesSettings::default();
-        settings.oxfmt.prefer = true;
-        assert_eq!(tool(None, "typescript", file, &settings).unwrap(), Some(Oxfmt));
-        settings.oxfmt.prefer = false;
-        settings.prettier.languages.clear();
-        assert_eq!(tool(None, "typescript", file, &settings).unwrap(), None);
-        settings.oxfmt.prefer = true;
-        settings.oxfmt.languages.clear();
-        assert_eq!(tool(None, "typescript", file, &settings).unwrap(), None);
-    }
-
-    #[test]
-    fn forced_tool_runs_that_formatter_or_reports_why_not() {
-        let dir = tempfile::tempdir().unwrap();
-        std::fs::write(dir.path().join(".oxfmtrc.json"), "{}").unwrap();
-        let file = dir.path().join("app.ts");
-        let mut settings = LanguagesSettings::default();
-        settings.oxfmt.languages.clear();
-        assert_eq!(tool(Some(Prettier), "typescript", &file, &settings).unwrap(), Some(Prettier));
-        assert_eq!(tool(Some(Oxfmt), "typescript", &file, &settings).unwrap(), Some(Oxfmt));
-        let rust = tool(Some(Oxfmt), "rust", &dir.path().join("main.rs"), &settings).unwrap_err();
-        assert_eq!(rust.message, "oxfmt cannot format Rust files");
+        let ts = languages.get(&ide_core::LanguageId::new("typescript")).unwrap();
+        settings.prefer = true;
+        assert!(external_selected(ts.formatter.as_ref(), "typescript", &settings, true));
+        settings.languages.clear();
+        assert!(!external_selected(ts.formatter.as_ref(), "typescript", &settings, false));
+        assert!(!external_selected(None, "rust", &settings, false));
    }
 }
@@ -1,16 +1,14 @@
 //! The IDE backend without a UI toolkit: open projects per window, terminals,
 //! processes, settings and the remote services. The desktop shell (`src-tauri`)
-//! wraps one [`Host`] and adds windows and menus; `openidea-server`
+//! wraps one [`Host`] and adds windows, menus and plugins; `openidea-server`
 //! runs one on a remote machine and serves it over JSON-RPC ([`rpc`]).

-pub mod data_dirs;
 pub mod environment;
 mod formatter;
 mod java_runtime;
 mod kotlin_bridge;
 pub mod notebook;
 pub mod ops;
-pub mod plugins;
 mod project;
 mod proxy;
 mod requests;
@@ -35,10 +33,7 @@ pub type SinkFactory = Box<dyn Fn(&str) -> SharedSink + Send + Sync>;

 pub struct HostConfig {
    pub config_dir: PathBuf,
-    /// Persistent user state, including credentials and recovery history.
    pub data_dir: PathBuf,
-    /// Machine-local tools and rebuildable caches.
-    pub local_data_dir: PathBuf,
    pub languages: Arc<LanguageRegistry>,
    /// Grammars, possibly still being built on another thread.
    pub syntax: Arc<OnceLock<Arc<Syntax>>>,
@@ -54,14 +49,10 @@ pub struct HostConfig {
 pub struct Host {
    pub trust: trust::TrustStore,
    pub config_dir: PathBuf,
-    /// Persistent user state, including credentials and recovery history.
    pub data_dir: PathBuf,
-    /// Machine-local tools and rebuildable caches.
-    pub local_data_dir: PathBuf,
    pub languages: Arc<LanguageRegistry>,
    syntax: Arc<OnceLock<Arc<Syntax>>>,
    pub global_settings: SettingsStore,
-    pub dependency_versions: Arc<ide_workspace::dependencies::VersionCache>,
    pub terminals: TerminalManager,
    pub processes: ProcessManager,
    /// Debug sessions (adapters run on this machine, next to the project).
@@ -85,17 +76,8 @@ pub struct Host {

 impl Host {
    pub fn new(config: HostConfig) -> Self {
-        let HostConfig {
-            config_dir,
-            data_dir,
-            local_data_dir,
-            languages,
-            syntax,
-            sink_for,
-            owner,
-            runtime,
-            project_environment,
-        } = config;
+        let HostConfig { config_dir, data_dir, languages, syntax, sink_for, owner, runtime, project_environment } =
+            config;
        let global_settings = SettingsStore::load(&config_dir, None);
        let ssh = Arc::new(ide_ssh::SshManager::new(data_dir.join("ssh-passwords.json")));
        ssh.set_configs(global_settings.effective().ssh.configs);
@@ -104,11 +86,8 @@ impl Host {
            proxy_password: ide_ssh::secrets::SecretFile::new(data_dir.join("proxy-password.json")),
            remote: Arc::new(ide_remote::RemoteService::new(ssh.clone(), data_dir.join("remote"))),
            ssh,
-            environment: environment::Environment::new(project_environment, local_data_dir.clone()),
+            environment: environment::Environment::new(project_environment, data_dir.clone()),
            global_settings,
-            dependency_versions: Arc::new(ide_workspace::dependencies::VersionCache::new(
-                data_dir.join("cache/dependency-versions"),
-            )),
            // Sessions, runs and terminals report to the window that started them (`window_sink`).
            terminals: TerminalManager::new(),
            processes: ProcessManager::new(),
@@ -117,7 +96,6 @@ impl Host {
            syntax,
            config_dir,
            data_dir,
-            local_data_dir,
            sink_for,
            owner,
            runtime,
@@ -134,17 +112,6 @@ impl Host {
        self.syntax.get_or_init(|| Arc::new(Syntax::new())).clone()
    }

-    /// Plugin languages or the servers they may start changed (they are part
-    /// of [`Self::languages`] and every project's fork): open documents are
-    /// detected again and language servers follow their new configuration.
-    pub fn plugin_languages_changed(&self) {
-        for project in self.projects() {
-            project.documents.redetect_languages();
-            let lsp = project.lsp.clone();
-            self.runtime.spawn(async move { lsp.reconfigure().await });
-        }
-    }
-
    /// Every open project (all windows).
    pub fn projects(&self) -> Vec<Arc<Project>> {
        self.projects.read().values().cloned().collect()
@@ -186,24 +153,14 @@ impl Host {
            if let Some(bridge) = &project.kotlin_bridge {
                bridge.stop();
            }
-            project.documents.clear_workspace_edit_history();
            project.agents.shutdown();
            project.notebooks.stop_admission();
-            // What the closing window started goes with it — the builds and searches it
-            // asked for, its runs, its shells and its debug sessions — and the language
-            // servers finish shutting down before the window is gone, as IDEA closes a
-            // project's processes.
-            for request in self.project_requests.write().remove(self.owner_window(window)).unwrap_or_default() {
-                self.cancel_request(request);
-            }
-            self.processes.kill_project(&project.root);
-            self.terminals.kill_key(self.owner_window(window));
            self.shutdown_project_workers_blocking(
                vec![project.notebooks.clone()],
                project.kotlin_bridge.iter().cloned().collect(),
-                Some(project.lsp.clone()),
-                Some((self.debugger.clone(), window.to_owned())),
            );
+            let lsp = project.lsp.clone();
+            self.runtime.spawn(async move { lsp.shutdown_all().await });
        }
    }

@@ -213,8 +170,6 @@ impl Host {
        &self,
        notebooks: Vec<Arc<notebook::NotebookService>>,
        bridges: Vec<Arc<kotlin_bridge::KotlinBridge>>,
-        lsp: Option<Arc<ide_lsp::LspManager>>,
-        debug: Option<(Arc<ide_dap::DebugManager>, String)>,
    ) {
        for bridge in &bridges {
            bridge.stop();
@@ -232,12 +187,6 @@ impl Host {
                    for service in notebooks {
                        service.shutdown().await;
                    }
-                    if let Some(lsp) = lsp {
-                        lsp.shutdown_all().await;
-                    }
-                    if let Some((debug, key)) = debug {
-                        debug.stop_key(&key).await;
-                    }
                });
            });
            if let Err(error) = worker.join() {
@@ -259,18 +208,9 @@ impl Host {
        self.shutdown_project_workers_blocking(
            projects.iter().map(|project| project.notebooks.clone()).collect(),
            projects.iter().filter_map(|project| project.kotlin_bridge.clone()).collect(),
-            None,
-            None,
        );
    }

-    /// Called before desktop exit, which may bypass document destructors.
-    pub fn clear_workspace_edit_history_on_exit(&self) {
-        for project in self.projects() {
-            project.documents.clear_workspace_edit_history();
-        }
-    }
-
    /// Stops what this host started: notebook kernels, language servers, agents, runs and terminals.
    /// For a process that exits without dropping the host (the remote server).
    pub async fn shutdown(&self) {
@@ -282,7 +222,6 @@ impl Host {
            if let Some(bridge) = &project.kotlin_bridge {
                bridge.stop();
            }
-            project.documents.clear_workspace_edit_history();
            project.notebooks.stop_admission();
            project.agents.shutdown();
        }
@@ -23,16 +23,9 @@ pub fn providers(host: &Host, window: &str) -> IdeResult<Vec<AgentProvider>> {
    Ok(providers)
 }

-/// Overrides built-in agent `id`'s command with `command` (its agent file keeps the
-/// built-in's driver and arguments), or returns it to auto-detection with `None`.
-pub fn set_command(host: &Host, window: &str, id: String, command: Option<String>) -> IdeResult<()> {
-    host.require_trust(window)?;
-    host.project(window)?.agents.set_builtin_command(&id, command)
-}
-
 /// Where ACP Registry agents are saved (`<config>/agents`, like the user's own) and installed.
 pub(crate) fn registry_paths(host: &Host) -> RegistryPaths {
-    RegistryPaths::new(&host.config_dir, &host.local_data_dir)
+    RegistryPaths::new(&host.config_dir, &host.data_dir)
 }

 fn join_err(e: impl std::fmt::Display) -> IdeError {
@@ -70,21 +63,13 @@ pub async fn registry_install(
    .await
    .map_err(join_err);
    host.end_request(request);
-    result??;
-    for project in host.projects() {
-        project.agents.reload_providers();
-    }
-    Ok(())
+    result?
 }

 /// Removes a registry agent: its agent file and installed files.
 pub async fn registry_remove(host: &Host, _window: &str, id: String) -> IdeResult<()> {
    let paths = registry_paths(host);
-    tokio::task::spawn_blocking(move || ide_agent::registry::remove(&paths, &id)).await.map_err(join_err)??;
-    for project in host.projects() {
-        project.agents.reload_providers();
-    }
-    Ok(())
+    tokio::task::spawn_blocking(move || ide_agent::registry::remove(&paths, &id)).await.map_err(join_err)?
 }

 /// Slash commands to complete for `provider` in `task`'s directory, or in the project
@@ -194,7 +179,6 @@ pub async fn base_text(host: &Host, window: &str, task: String, path: IpcPath) -
 pub(crate) fn register(d: &mut Dispatcher) {
    d.add("agent_subscribe", |c| async move { subscribe(&c.host, &c.window, c.channel("onEvent")?) });
    d.add("agent_providers", |c| async move { providers(&c.host, &c.window) });
-    d.add("agent_set_command", |c| async move { set_command(&c.host, &c.window, c.arg("id")?, c.arg("command")?) });
    d.add("agent_registry_list", |c| async move { registry_list(&c.host, &c.window, c.arg("request")?).await });
    d.add("agent_registry_install", |c| async move {
        registry_install(&c.host, &c.window, c.arg("id")?, c.arg("request")?, c.sender("onEvent")?).await
@@ -74,18 +74,6 @@ pub fn load(root: &Path, cache: &Path, settings: &Settings) -> BuildModel {
    model
 }

-/// `model` building with the Maven profiles of the last sync (`-P`), as Maven runs from
-/// the tool window do.
-fn with_profiles(mut model: BuildModel, cache: &Path) -> BuildModel {
-    let profiles = ide_build::maven_profiles(cache);
-    if let (Some(m), false) = (&mut model.maven, profiles.is_empty()) {
-        for p in &mut m.projects {
-            p.options.push(format!("-P{}", profiles.join(",")));
-        }
-    }
-    model
-}
-
 /// Maven and Gradle projects of the window's project, from the build files plus the last sync.
 pub async fn build_model(host: &Host, window: &str) -> IdeResult<BuildModel> {
    host.require_trust(window)?;
@@ -110,12 +98,6 @@ pub async fn build_sync(
    let project = host.project(window)?;
    let (root, cache, settings) = (project.root.clone(), project.build_cache_dir(), project.settings.effective());
    let bridge_profiles = profiles.clone();
-    // What the Java language server and Build Project resolve the project with from now on.
-    let profiles_changed = tool == BuildTool::Maven
-        && ide_build::save_maven_profiles(&cache, &profiles).unwrap_or_else(|e| {
-            tracing::warn!("Maven profiles not saved: {e}");
-            false
-        });
    let token = host.begin_project_request(window, request);
    let result = tokio::task::spawn_blocking(move || {
        let current = load(&root, &cache, &settings);
@@ -150,50 +132,23 @@ pub async fn build_sync(
    .map_err(join_err);
    host.end_request(request);
    let model = result??;
-    if tool == BuildTool::Gradle {
-        // The sync may report project folders outside the project (`includeFlat`): index and list them.
-        project.refresh_index_scope();
-        project.sink.emit(ide_core::IdeEvent::ProjectRootsChanged { root: project.root.clone().into() });
-        let p = project.clone();
-        tokio::task::spawn_blocking(move || p.refresh_repositories());
-    }
    if tool == BuildTool::Maven
-        && model.maven.is_some()
-        && let Some(bridge) = &project.kotlin_bridge
+        && let Some(maven) = &model.maven
    {
-        bridge.configure_maven(offline, bridge_profiles);
+        // jdtls re-imports on pom changes but misses artifacts added to ~/.m2
+        // meanwhile ("missing artifact" stays until Invalidate Caches); asking it
+        // to update the project configurations re-resolves them (#436).
+        if let Some(bridge) = &project.kotlin_bridge {
+            bridge.configure_maven(offline, bridge_profiles);
+        }
+        let lsp = project.lsp.clone();
+        let uris = maven.projects.iter().map(|p| ide_lsp::path_to_uri_string(&project.root.join(&p.pom))).collect();
+        tokio::spawn(async move {
+            if let Err(e) = lsp.java_update_project_configs(&project.root, uris).await {
+                tracing::debug!("java/projectConfigurationsUpdate: {e}");
+            }
+        });
    }
-    // jdtls re-imports on pom changes but misses artifacts added to ~/.m2
-    // meanwhile ("missing artifact" stays until Invalidate Caches); asking it
-    // to update the project configurations re-resolves them (#436). The same
-    // holds for Gradle: it reuses its cached classpath on restart, so a
-    // dependency added to `build.gradle` stays unresolved until told to sync.
-    let build_files: Vec<String> = match tool {
-        BuildTool::Maven => model.maven.iter().flat_map(|m| m.projects.iter().map(|p| p.pom.clone())).collect(),
-        BuildTool::Gradle => {
-            model.gradle.iter().flat_map(|g| g.projects.iter().filter_map(|p| p.build_file.clone())).collect()
-        }
-    };
-    let lsp = project.lsp.clone();
-    // With a module of a reactor unlinked, jdtls imports the other modules one by one and
-    // not the reactor: naming the reactor here would import it again, all modules included.
-    let imported = match tool {
-        BuildTool::Maven => crate::project::jdtls_maven_import(&project.root, &project.settings.effective()).1,
-        BuildTool::Gradle => None,
-    };
-    let uris = match imported {
-        Some(files) => files.into_iter().filter(|f| f.ends_with("/pom.xml")).collect(),
-        None => build_files.iter().map(|f| ide_lsp::path_to_uri_string(&project.root.join(f))).collect(),
-    };
-    tokio::spawn(async move {
-        if profiles_changed {
-            // jdtls takes the profiles from its Maven settings (see `ide_sdk::maven_profiles`).
-            lsp.reconfigure().await;
-        }
-        if let Err(e) = lsp.java_update_project_configs(&project.root, uris).await {
-            tracing::debug!("java/projectConfigurationsUpdate: {e}");
-        }
-    });
    Ok(model)
 }

@@ -248,10 +203,8 @@ pub async fn maven_exclude_dependency(
        let (path, text, range) = declaring_pom(&project, &pom, &dependency)?;
        match ide_build::pom_edit::add_exclusion(&text, &dependency, &exclusion) {
            Some(Exclusion::Edit(edit)) => {
-                let edit = WorkspaceEdit {
-                    files: vec![FileEdit::Edit { path: path.clone().into(), edits: vec![edit], version: None }],
-                    ..Default::default()
-                };
+                let edit =
+                    WorkspaceEdit { files: vec![FileEdit::Edit { path: path.clone().into(), edits: vec![edit] }] };
                apply_workspace_edit(&project.documents, &edit)?;
            }
            Some(Exclusion::Present) => {}
@@ -295,8 +248,7 @@ pub async fn build_run(
            for member in workspace.projects.iter().filter(|p| file.as_ref().is_none_or(|f| f.starts_with(p))) {
                let settings = ide_workspace::SettingsStore::load(&config_dir, Some(member)).effective();
                let member_cache = cache.join(crate::project::project_key(member));
-                let model = with_profiles(load(member, &member_cache, &settings), &member_cache);
-                let plan = compile::plan(member, &model, kind, file.as_deref())?;
+                let plan = compile::plan(member, &load(member, &member_cache, &settings), kind, file.as_deref())?;
                match &mut combined {
                    Some(combined) => combined.steps.extend(plan.steps),
                    None => combined = Some(plan),
@@ -306,7 +258,7 @@ pub async fn build_run(
            plan.title = workspace.name;
            plan
        } else {
-            compile::plan(&root, &with_profiles(load(&root, &cache, &settings), &cache), kind, file.as_deref())?
+            compile::plan(&root, &load(&root, &cache, &settings), kind, file.as_deref())?
        };
        let result = compile::run(&root, &plan, &token, &|e| {
            let _ = on_event.send(e);
@@ -1,422 +0,0 @@
-//! Database commands shared by the desktop shell's IPC commands and the
-//! remote server ([`crate::rpc`]). `db_export_file` stays in the desktop
-//! shell: its path comes from a local save dialog, so the export must land
-//! on the user's machine, not the side the project runs on.
-use crate::Host;
-use crate::rpc::Dispatcher;
-use ide_core::{IdeError, IdeResult, IpcPath, RequestId};
-use ide_db::split::SqlStatement;
-use ide_db::{
-    CompletionModel, DataSource, Databases, DbObjectKind, DbRowEdit, HistoryEntry, PlanNode, QueryResult,
-    SchemaObjects, SortKey, TableDetails, TableInfo, TablePage,
-};
-use serde::{Deserialize, Serialize};
-use specta::Type;
-
-/// One statement of a console run.
-#[derive(Clone, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-#[serde(rename = "DbStatementOutcome")]
-pub struct StatementOutcome {
-    pub statement: SqlStatement,
-    pub result: Option<QueryResult>,
-    pub error: Option<String>,
-}
-
-pub(crate) fn register(d: &mut Dispatcher) {
-    d.add("db_sources", |c| async move { sources(&c.host, &c.window) });
-    d.add("db_save_sources", |c| async move {
-        let sources = c.arg("sources")?;
-        save_sources(&c.host, &c.window, sources).await
-    });
-    d.add("db_set_password", |c| async move {
-        let (id, password, save) =
-            (c.arg::<String>("id")?, c.arg::<Option<String>>("password")?, c.arg::<bool>("save")?);
-        set_password(&c.host, &c.window, &id, password, save).await
-    });
-    d.add("db_test", |c| async move {
-        let (source, password, ssh_secret) = (
-            c.arg::<DataSource>("source")?,
-            c.arg::<Option<String>>("password")?,
-            c.arg::<Option<String>>("sshSecret")?,
-        );
-        test(&c.host, &c.window, source, password, ssh_secret).await
-    });
-    d.add("db_set_ssh_secret", |c| async move {
-        let (id, secret, save) = (c.arg::<String>("id")?, c.arg::<Option<String>>("secret")?, c.arg::<bool>("save")?);
-        set_ssh_secret(&c.host, &c.window, &id, secret, save).await
-    });
-    d.add("db_trust_ssh_host", |c| async move {
-        let id = c.arg::<String>("id")?;
-        trust_ssh_host(&c.host, &c.window, &id).await
-    });
-    d.add("db_connected", |c| async move { connected(&c.host, &c.window) });
-    d.add("db_connect", |c| async move {
-        let id = c.arg::<String>("id")?;
-        connect(&c.host, &c.window, &id).await
-    });
-    d.add("db_set_manual_commit", |c| async move {
-        let (id, manual) = (c.arg::<String>("id")?, c.arg::<bool>("manual")?);
-        set_manual_commit(&c.host, &c.window, &id, manual).await
-    });
-    d.add("db_finish_transaction", |c| async move {
-        let (id, commit) = (c.arg::<String>("id")?, c.arg::<bool>("commit")?);
-        finish_transaction(&c.host, &c.window, &id, commit).await
-    });
-    d.add("db_disconnect", |c| async move {
-        let id = c.arg::<String>("id")?;
-        disconnect(&c.host, &c.window, &id).await
-    });
-    d.add("db_databases", |c| async move {
-        let id = c.arg::<String>("id")?;
-        databases(&c.host, &c.window, &id).await
-    });
-    d.add("db_schemas", |c| async move {
-        let id = c.arg::<String>("id")?;
-        schemas(&c.host, &c.window, &id).await
-    });
-    d.add("db_tables", |c| async move {
-        let (id, schema) = (c.arg::<String>("id")?, c.arg::<String>("schema")?);
-        tables(&c.host, &c.window, &id, &schema).await
-    });
-    d.add("db_table_details", |c| async move {
-        let (id, schema, table) = (c.arg::<String>("id")?, c.arg::<String>("schema")?, c.arg::<String>("table")?);
-        table_details(&c.host, &c.window, &id, &schema, &table).await
-    });
-    d.add("db_ddl", |c| async move {
-        let (id, schema, table) = (c.arg::<String>("id")?, c.arg::<String>("schema")?, c.arg::<String>("table")?);
-        ddl(&c.host, &c.window, &id, &schema, &table).await
-    });
-    d.add("db_schema_objects", |c| async move {
-        let (id, schema) = (c.arg::<String>("id")?, c.arg::<String>("schema")?);
-        schema_objects(&c.host, &c.window, &id, &schema).await
-    });
-    d.add("db_object_ddl", |c| async move {
-        let (id, schema, kind, name) = (
-            c.arg::<String>("id")?,
-            c.arg::<String>("schema")?,
-            c.arg::<DbObjectKind>("kind")?,
-            c.arg::<String>("name")?,
-        );
-        object_ddl(&c.host, &c.window, &id, &schema, kind, &name).await
-    });
-    d.add("db_explain", |c| async move {
-        let (request, id, statement) =
-            (c.arg::<RequestId>("request")?, c.arg::<String>("id")?, c.arg::<String>("statement")?);
-        explain(&c.host, &c.window, request, &id, &statement).await
-    });
-    d.add("db_history", |c| async move {
-        let id = c.arg::<String>("id")?;
-        history(&c.host, &c.window, &id).await
-    });
-    d.add("db_remove_history", |c| async move {
-        let (id, texts) = (c.arg::<String>("id")?, c.arg::<Option<Vec<String>>>("texts")?);
-        remove_history(&c.host, &c.window, &id, texts).await
-    });
-    d.add("db_completion", |c| async move {
-        let id = c.arg::<String>("id")?;
-        completion(&c.host, &c.window, &id).await
-    });
-    d.add("db_statements", |c| async move {
-        let (id, text, from, to) =
-            (c.arg::<String>("id")?, c.arg::<String>("text")?, c.arg::<u32>("from")?, c.arg::<u32>("to")?);
-        statements(&c.host, &c.window, &id, &text, from, to)
-    });
-    d.add("db_execute", |c| async move {
-        let (request, id, statements, max_rows) = (
-            c.arg::<RequestId>("request")?,
-            c.arg::<String>("id")?,
-            c.arg::<Vec<SqlStatement>>("statements")?,
-            c.arg::<u32>("maxRows")?,
-        );
-        execute(&c.host, &c.window, request, &id, statements, max_rows).await
-    });
-    d.add("db_table_page", |c| async move {
-        let (request, id, schema, table) = (
-            c.arg::<RequestId>("request")?,
-            c.arg::<String>("id")?,
-            c.arg::<String>("schema")?,
-            c.arg::<String>("table")?,
-        );
-        let (filter, sort, offset, limit) = (
-            c.arg::<Option<String>>("filter")?,
-            c.arg::<Vec<SortKey>>("sort")?,
-            c.arg::<u32>("offset")?,
-            c.arg::<u32>("limit")?,
-        );
-        table_page(&c.host, &c.window, request, &id, &schema, &table, filter, sort, offset, limit).await
-    });
-    d.add("db_apply_edits", |c| async move {
-        let (id, schema, table, edits) = (
-            c.arg::<String>("id")?,
-            c.arg::<String>("schema")?,
-            c.arg::<String>("table")?,
-            c.arg::<Vec<DbRowEdit>>("edits")?,
-        );
-        apply_edits(&c.host, &c.window, &id, &schema, &table, edits).await
-    });
-    d.add("db_console_path", |c| async move { console_path(&c.host, &c.arg::<String>("id")?) });
-}
-
-/// The data sources configured for the project (the tree's roots).
-pub fn sources(host: &Host, window: &str) -> IdeResult<Vec<DataSource>> {
-    host.project(window)?.db.sources()
-}
-
-/// Replaces the project's data sources with `sources`.
-pub async fn save_sources(host: &Host, window: &str, sources: Vec<DataSource>) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.save_sources(sources).await
-}
-
-/// Remembers the password of data source `id` for the session, and in the OS
-/// saved passwords when `save` (`None` forgets it).
-pub async fn set_password(host: &Host, window: &str, id: &str, password: Option<String>, save: bool) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.set_password(id, password, save).await
-}
-
-/// Test Connection: connects with unsaved settings and returns the server version.
-pub async fn test(
-    host: &Host,
-    window: &str,
-    source: DataSource,
-    password: Option<String>,
-    ssh_secret: Option<String>,
-) -> IdeResult<String> {
-    let db = host.project(window)?.db.clone();
-    db.test(&source, password, ssh_secret).await
-}
-
-/// Remembers the SSH password / key passphrase of a data source (see `set_password`).
-pub async fn set_ssh_secret(host: &Host, window: &str, id: &str, secret: Option<String>, save: bool) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.set_ssh_secret(id, secret, save).await
-}
-
-/// Trusts the SSH host key that made the last connection of `id` fail with
-/// "Unknown SSH host key" (records it in `~/.ssh/known_hosts`).
-pub async fn trust_ssh_host(host: &Host, window: &str, id: &str) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.trust_ssh_host(id).await
-}
-
-/// The data sources with an open connection.
-pub fn connected(host: &Host, window: &str) -> IdeResult<Vec<String>> {
-    Ok(host.project(window)?.db.connected())
-}
-
-/// Connects (fails with `permissionDenied` when the password is missing or wrong).
-pub async fn connect(host: &Host, window: &str, id: &str) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.pool(id).await.map(|_| ())
-}
-
-/// Switches a data source between auto-commit and manual commit (leaving
-/// manual mode rolls back what was not committed).
-pub async fn set_manual_commit(host: &Host, window: &str, id: &str, manual: bool) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.set_manual_commit(id, manual).await;
-    Ok(())
-}
-
-/// Commits or rolls back the open transaction of a manual-commit data source.
-pub async fn finish_transaction(host: &Host, window: &str, id: &str, commit: bool) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.finish_transaction(id, commit).await
-}
-
-/// Closes the connection of data source `id`.
-pub async fn disconnect(host: &Host, window: &str, id: &str) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.disconnect(id).await;
-    Ok(())
-}
-
-/// Databases of the server of data source `id` (PostgreSQL); connect to one as `<id>:<database>`.
-pub async fn databases(host: &Host, window: &str, id: &str) -> IdeResult<Databases> {
-    let db = host.project(window)?.db.clone();
-    db.databases(id).await
-}
-
-/// The schemas of data source `id`.
-pub async fn schemas(host: &Host, window: &str, id: &str) -> IdeResult<Vec<String>> {
-    let db = host.project(window)?.db.clone();
-    db.schemas(id).await
-}
-
-/// The tables and views of `schema`.
-pub async fn tables(host: &Host, window: &str, id: &str, schema: &str) -> IdeResult<Vec<TableInfo>> {
-    let db = host.project(window)?.db.clone();
-    db.tables(id, schema).await
-}
-
-/// Columns, keys and indexes of `table`.
-pub async fn table_details(host: &Host, window: &str, id: &str, schema: &str, table: &str) -> IdeResult<TableDetails> {
-    let db = host.project(window)?.db.clone();
-    db.table_details(id, schema, table).await
-}
-
-/// The DDL of table or view `table` (Go to DDL, Generate DDL).
-pub async fn ddl(host: &Host, window: &str, id: &str, schema: &str, table: &str) -> IdeResult<String> {
-    let db = host.project(window)?.db.clone();
-    db.ddl(id, schema, table).await
-}
-
-/// The routines and sequences of `schema` (the tree's `routines` / `sequences`).
-pub async fn schema_objects(host: &Host, window: &str, id: &str, schema: &str) -> IdeResult<SchemaObjects> {
-    let db = host.project(window)?.db.clone();
-    db.schema_objects(id, schema).await
-}
-
-/// The definition of a routine, trigger or sequence (Go to DDL, Quick Documentation).
-pub async fn object_ddl(
-    host: &Host,
-    window: &str,
-    id: &str,
-    schema: &str,
-    kind: DbObjectKind,
-    name: &str,
-) -> IdeResult<String> {
-    let db = host.project(window)?.db.clone();
-    db.object_ddl(id, schema, kind, name).await
-}
-
-/// Explain Plan: the execution plan of `statement` on `id`, without running it.
-pub async fn explain(
-    host: &Host,
-    window: &str,
-    request: RequestId,
-    id: &str,
-    statement: &str,
-) -> IdeResult<Vec<PlanNode>> {
-    let db = host.project(window)?.db.clone();
-    let cancel = host.begin_request(request);
-    let result = db.explain(id, statement, &cancel).await;
-    host.end_request(request);
-    result
-}
-
-/// The statements data source `id` ran, newest first (Browse Query History).
-pub async fn history(host: &Host, window: &str, id: &str) -> IdeResult<Vec<HistoryEntry>> {
-    let db = host.project(window)?.db.clone();
-    db.history(id).await
-}
-
-/// Removes statements from the query history of `id` (`None`: all of them).
-pub async fn remove_history(host: &Host, window: &str, id: &str, texts: Option<Vec<String>>) -> IdeResult<()> {
-    let db = host.project(window)?.db.clone();
-    db.remove_history(id, texts).await
-}
-
-/// Tables, columns and foreign keys for SQL completion.
-pub async fn completion(host: &Host, window: &str, id: &str) -> IdeResult<CompletionModel> {
-    let db = host.project(window)?.db.clone();
-    db.completion(id).await
-}
-
-/// Statements a console runs: the selection's (`from < to`) or the one at the caret (`from`).
-pub fn statements(host: &Host, window: &str, id: &str, text: &str, from: u32, to: u32) -> IdeResult<Vec<SqlStatement>> {
-    let driver = host.project(window)?.db.source(id)?.driver;
-    Ok(if from < to {
-        ide_db::split::statements_in(text, from, to, driver)
-    } else {
-        ide_db::split::statement_at(text, from, driver).into_iter().collect()
-    })
-}
-
-/// Runs `statements` in order on data source `id`, stopping at the first
-/// error. Cancel with `cancel_request(request)`.
-pub async fn execute(
-    host: &Host,
-    window: &str,
-    request: RequestId,
-    id: &str,
-    statements: Vec<SqlStatement>,
-    max_rows: u32,
-) -> IdeResult<Vec<StatementOutcome>> {
-    let db = host.project(window)?.db.clone();
-    let cancel = host.begin_request(request);
-    let mut out = Vec::new();
-    for statement in statements {
-        match db.execute(id, &statement.text, max_rows.max(1) as usize, &cancel).await {
-            Ok(result) => out.push(StatementOutcome { statement, result: Some(result), error: None }),
-            Err(e) if e.kind == ide_core::error::ErrorKind::Cancelled => {
-                host.end_request(request);
-                return Err(e);
-            }
-            Err(e) if e.kind == ide_core::error::ErrorKind::PermissionDenied && out.is_empty() => {
-                // Not connected for lack of a password: the UI asks and retries.
-                host.end_request(request);
-                return Err(e);
-            }
-            Err(e) => {
-                out.push(StatementOutcome { statement, result: None, error: Some(e.message) });
-                break;
-            }
-        }
-    }
-    host.end_request(request);
-    Ok(out)
-}
-
-/// One page of the rows of `table` (the table editor).
-#[allow(clippy::too_many_arguments)]
-pub async fn table_page(
-    host: &Host,
-    window: &str,
-    request: RequestId,
-    id: &str,
-    schema: &str,
-    table: &str,
-    filter: Option<String>,
-    sort: Vec<SortKey>,
-    offset: u32,
-    limit: u32,
-) -> IdeResult<TablePage> {
-    let db = host.project(window)?.db.clone();
-    let cancel = host.begin_request(request);
-    let result =
-        db.table_page(id, schema, table, filter.as_deref(), &sort, offset.into(), limit.max(1).into(), &cancel).await;
-    host.end_request(request);
-    result
-}
-
-/// Submits the table editor's changes in one transaction; returns the rows changed.
-pub async fn apply_edits(
-    host: &Host,
-    window: &str,
-    id: &str,
-    schema: &str,
-    table: &str,
-    edits: Vec<DbRowEdit>,
-) -> IdeResult<f64> {
-    let db = host.project(window)?.db.clone();
-    Ok(db.apply_edits(id, schema, table, &edits).await? as f64)
-}
-
-/// The query console file of data source `id` (`<dataDir>/consoles/db/<id>/console.sql`),
-/// created on first use. Consoles are files of the project, so a remote
-/// window resolves it on the host the project runs on.
-pub fn console_path(host: &Host, id: &str) -> IdeResult<IpcPath> {
-    let (source, database) = ide_db::split_target(id);
-    if source.is_empty() || !source.chars().all(|c| c.is_ascii_alphanumeric() || c == '-' || c == '_') {
-        return Err(IdeError::invalid("invalid data source id"));
-    }
-    // One console per database: `<id>` for the default one, `<id>.<database>` for the others.
-    let name = match database {
-        Some(db) => {
-            let safe: String =
-                db.chars().map(|c| if c.is_alphanumeric() || c == '-' || c == '_' { c } else { '_' }).collect();
-            format!("{source}.{safe}")
-        }
-        None => source.to_owned(),
-    };
-    let dir = host.data_dir.join("consoles").join("db").join(&name);
-    std::fs::create_dir_all(&dir)?;
-    let file = dir.join("console.sql");
-    if !file.exists() {
-        std::fs::write(&file, "")?;
-    }
-    Ok(file.into())
-}
@@ -39,7 +39,7 @@ pub async fn debug_start(host: &Host, window: &str, config: LaunchConfig) -> Ide
            .await?;
    }
    if config.adapter == ide_dap::kotlin::ADAPTER {
-        let data_dir = host.local_data_dir.clone();
+        let data_dir = host.data_dir.clone();
        let runtime_root = config.cwd.clone().map(PathBuf::from).unwrap_or_default();
        let runtime_settings = settings.clone();
        let runtime = host
@@ -96,13 +96,7 @@ fn match_java_debug_encoding(mut config: LaunchConfig, windows: bool) -> LaunchC
    };
    let vm_args = extra.get("vmArgs").and_then(|v| v.as_str()).unwrap_or_default();
    let encoding = extra.get("encoding").and_then(|v| v.as_str());
-    if let Some(vm_args) = ide_core::output_encoding::java_debug_vm_args(
-        vm_args,
-        &config.env,
-        |key| std::env::var(key).ok(),
-        encoding,
-        windows,
-    ) {
+    if let Some(vm_args) = ide_core::output_encoding::java_debug_vm_args(vm_args, encoding, windows) {
        extra.insert("vmArgs".into(), vm_args.into());
        config.extra_json = Some(serde_json::Value::Object(extra).to_string());
    }
@@ -458,7 +452,7 @@ mod tests {
            program: None,
            args: vec![],
            cwd: None,
-            env: [("JDK_JAVA_OPTIONS".into(), "".into()), ("JAVA_TOOL_OPTIONS".into(), "".into())].into(),
+            env: Default::default(),
            extra_json: Some(extra.to_string()),
        }
    }
@@ -474,7 +468,7 @@ mod tests {
        let fixed = match_java_debug_encoding(launch("java-debug", "launch", extra.clone()), true);
        assert_eq!(
            vm_args(&fixed),
-            "-Xmx1g -Dstdout.encoding=UTF-8 -Dstderr.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -Dfile.encoding=UTF-8"
+            "-Xmx1g -Dstdout.encoding=UTF-8 -Dstderr.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8"
        );
        assert_eq!(
            serde_json::from_str::<serde_json::Value>(fixed.extra_json.as_deref().unwrap()).unwrap()["mainClass"],
@@ -487,13 +481,4 @@ mod tests {
            assert_eq!(vm_args(&match_java_debug_encoding(launch(adapter, request, extra.clone()), windows)), "-Xmx1g");
        }
    }
-
-    #[test]
-    fn java_debug_launches_respect_environment_encoding() {
-        for key in ["JDK_JAVA_OPTIONS", "JAVA_TOOL_OPTIONS"] {
-            let mut config = launch("java-debug", "launch", serde_json::json!({"vmArgs": "-Dstdout.encoding=GBK"}));
-            config.env.insert(key.into(), "-Dfile.encoding=GBK".into());
-            assert_eq!(vm_args(&match_java_debug_encoding(config, true)), "-Dstdout.encoding=GBK");
-        }
-    }
 }
@@ -1,124 +0,0 @@
-//! Repository version lookups for manifest inspections and completion.
-use crate::{Host, rpc::Dispatcher};
-use ide_core::{CancellationToken, DocId, IdeError, IdeResult, RequestId};
-use ide_workspace::dependencies::{DependencyVersionSource, DependencyVersions, cargo};
-
-struct CratesIo;
-impl DependencyVersionSource for CratesIo {
-    fn id(&self) -> &'static str {
-        "crates-io"
-    }
-
-    fn fetch(&self, package: &str, cancel: &CancellationToken) -> IdeResult<Vec<String>> {
-        let path = cargo::index_path(package).ok_or_else(|| IdeError::internal("invalid crate name"))?;
-        let search_path = std::env::var_os("PATH").unwrap_or_default();
-        let text = ide_tools::Http::new(&search_path)?.https_only().get_text_limited(
-            &format!("https://index.crates.io/{path}"),
-            Some(16 * 1024 * 1024),
-            cancel,
-        )?;
-        cargo::parse_index(&text).ok_or_else(|| IdeError::internal("invalid sparse index"))
-    }
-}
-
-/// `offset` limits a completion request to its version string; inspections omit it.
-pub async fn dependency_versions(
-    host: &Host,
-    window: &str,
-    doc: DocId,
-    offset: Option<u32>,
-    request: RequestId,
-) -> IdeResult<Vec<DependencyVersions>> {
-    let project = host.project(window)?;
-    let cache = host.dependency_versions.clone();
-    let cancel = host.begin_request(request);
-    let result = host
-        .blocking(move || {
-            let snap = project.documents.snapshot(doc)?;
-            if snap.large || snap.read_only || snap.path.file_name().is_none_or(|n| n != "Cargo.toml") {
-                return Ok(Vec::new());
-            }
-            let mut out = Vec::new();
-            for dependency in cargo::dependencies(&snap.text) {
-                if offset.is_some_and(|pos| pos < dependency.from || pos > dependency.to) {
-                    continue;
-                }
-                if cancel.is_cancelled() {
-                    return Err(IdeError::cancelled());
-                }
-                let versions = cache.versions(&CratesIo, &dependency.package, &cancel)?;
-                let update = cargo::update(&dependency.requirement, &versions);
-                out.push(DependencyVersions { dependency, versions, update });
-            }
-            Ok(out)
-        })
-        .await;
-    host.end_request(request);
-    result
-}
-
-pub(crate) fn register(d: &mut Dispatcher) {
-    d.add("dependency_versions", |c| async move {
-        dependency_versions(&c.host, &c.window, c.arg("doc")?, c.arg("offset")?, c.arg("request")?).await
-    });
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::HostConfig;
-    use std::sync::Arc;
-
-    struct Source;
-    impl DependencyVersionSource for Source {
-        fn id(&self) -> &'static str {
-            "crates-io"
-        }
-        fn fetch(&self, _: &str, _: &CancellationToken) -> IdeResult<Vec<String>> {
-            Ok(vec!["1.10.0".into(), "0.2.1".into()])
-        }
-    }
-
-    #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
-    async fn host_uses_synced_document_cache_and_cursor_filter_without_network() {
-        let temp = tempfile::tempdir().unwrap();
-        let base = dunce::canonicalize(temp.path()).unwrap();
-        let root = base.join("project");
-        std::fs::create_dir(&root).unwrap();
-        let text = "# 中文 😀\n[dependencies]\ntokio = { version = \"0.2\", features = [\"full\"] }\nserde = \"1.0.100\"\nlocal = { path = \"../x\", version = \"0.2\" }\n";
-        let path = root.join("Cargo.toml");
-        std::fs::write(&path, text).unwrap();
-        let host = Host::new(HostConfig {
-            config_dir: base.join("config"),
-            data_dir: base.join("data"),
-            local_data_dir: base.join("local"),
-            languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
-            syntax: Arc::default(),
-            sink_for: Box::new(|_| Arc::new(|_| {})),
-            owner: |w| w,
-            runtime: tokio::runtime::Handle::current(),
-            project_environment: false,
-        });
-        let project = host.open_project("main", &root).unwrap();
-        let info = project.documents.open(&path).unwrap();
-        for package in ["tokio", "serde"] {
-            host.dependency_versions.versions(&Source, package, &CancellationToken::new()).unwrap();
-        }
-        let all = dependency_versions(&host, "main", info.id, None, RequestId(410)).await.unwrap();
-        assert_eq!(all.len(), 2);
-        assert_eq!(all[0].update.as_ref().unwrap().replacement, "1.10");
-        assert!(all[1].update.is_none());
-        let offset = all[1].dependency.from;
-        let at_cursor = dependency_versions(&host, "main", info.id, Some(offset), RequestId(411)).await.unwrap();
-        assert_eq!(at_cursor.len(), 1);
-        assert_eq!(at_cursor[0].dependency.package, "serde");
-        assert!(dependency_versions(&host, "main", info.id, Some(0), RequestId(412)).await.unwrap().is_empty());
-        host.cancel_request(RequestId(413));
-        assert!(dependency_versions(&host, "main", info.id, None, RequestId(413)).await.is_err());
-        let other = root.join("other.toml");
-        std::fs::write(&other, text).unwrap();
-        let info = project.documents.open(&other).unwrap();
-        assert!(dependency_versions(&host, "main", info.id, None, RequestId(414)).await.unwrap().is_empty());
-        host.close_project("main");
-    }
-}
@@ -1,6 +1,6 @@
 use crate::Host;
 use ide_core::{CancellationToken, IdeEvent, IdeResult, IpcPath, RequestId, SharedSink, TaskId};
-use ide_remote::{DeployedPath, DeploymentCoverage, DeploymentRoot, SyncEntry, SyncStep, TransferReport};
+use ide_remote::{DeployedPath, DeploymentCoverage, SyncEntry, SyncStep, TransferReport};
 use ide_ssh::{FsConnection, RemoteEntry};
 use std::path::PathBuf;

@@ -134,12 +134,13 @@ pub async fn deploy_info(
    state.remote.deployed(&project.settings.effective(), &project.root, server.as_deref(), &path).await
 }

-/// Remote Host tool window: the resolved server root and project mappings.
-pub async fn deploy_server_root(window: &str, state: &Host, server: String) -> IdeResult<DeploymentRoot> {
-    let project = state.project(window).ok();
-    let settings =
-        project.as_ref().map(|p| p.settings.effective()).unwrap_or_else(|| state.global_settings.effective());
-    state.remote.server_info(&settings, project.as_ref().map(|p| p.root.as_path()), &server).await
+/// Remote Host tool window: the server root of `server`, resolved on the host.
+pub async fn deploy_server_root(window: &str, state: &Host, server: String) -> IdeResult<String> {
+    let settings = match state.project(window) {
+        Ok(p) => p.settings.effective(),
+        Err(_) => state.global_settings.effective(),
+    };
+    state.remote.server_root(&settings, &server).await
 }

 /// Entries of a folder on the selected filesystem (`~`: its home directory).
@@ -127,7 +127,7 @@ pub(crate) fn register(d: &mut Dispatcher) {
        doc_set_encoding(&c.host, &c.window, c.arg("doc")?, c.arg("encoding")?, c.arg("reload")?).await
    });
    d.add("doc_set_line_ending", |c| async move {
-        blocking(move || doc_set_line_ending(&c.host, &c.window, c.arg("doc")?, c.arg("lineEnding")?)).await
+        doc_set_line_ending(&c.host, &c.window, c.arg("doc")?, c.arg("lineEnding")?)
    });
    d.add("doc_outline", |c| async move { doc_outline(&c.host, &c.window, c.arg("doc")?).await });
    d.add("doc_folding", |c| async move { doc_folding(&c.host, &c.window, c.arg("doc")?).await });
@@ -30,7 +30,6 @@ impl Fixture {
        let host = Host::new(HostConfig {
            config_dir: base.join("config"),
            data_dir: base.join("data"),
-            local_data_dir: base.join("data"),
            languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
            syntax: Arc::default(),
            sink_for: Box::new(move |_| {
@@ -56,16 +56,14 @@ pub async fn copy_merge(
        if overwrite {
            project.history.record_deletion(&to, DELETE_SNAPSHOT_LIMIT);
        }
-        project.with_disk_sync(|| {
-            ide_vfs::copy_merge(
-                &from,
-                &to,
-                overwrite,
-                Some(&project.root),
-                &project.exclude_globs(),
-                (&source_root, &destination_root),
-            )
-        })
+        ide_vfs::copy_merge(
+            &from,
+            &to,
+            overwrite,
+            Some(&project.root),
+            &project.exclude_globs(),
+            (&source_root, &destination_root),
+        )
    })
    .await
 }
@@ -73,28 +71,24 @@ pub async fn copy_merge(
 /// Files of a deleted folder snapshotted in Local History.
 const DELETE_SNAPSHOT_LIMIT: usize = 2000;

-/// Runs on the blocking pool: on a network share (`\\wsl.localhost`) every stat is slow.
-pub async fn read_dir(host: &Host, window: &str, path: PathBuf) -> IdeResult<Vec<FileEntry>> {
-    let project = host.project(window);
-    host.blocking(move || {
-        let excludes = project
-            .map(|p| {
-                let globs = p.exclude_globs();
-                // `read_dir` matches relative to the enclosing repository: re-anchor
-                // project-root patterns (`/build`) when the project is a repo subfolder.
-                let repo = p.root.ancestors().find(|d| d.join(".git").exists());
-                match repo.and_then(|r| p.root.strip_prefix(r).ok()).filter(|rel| !rel.as_os_str().is_empty()) {
-                    Some(rel) => {
-                        let rel = rel.to_string_lossy().replace('\\', "/");
-                        globs.into_iter().map(|g| if g.starts_with('/') { format!("/{rel}{g}") } else { g }).collect()
-                    }
-                    None => globs,
+pub fn read_dir(host: &Host, window: &str, path: PathBuf) -> IdeResult<Vec<FileEntry>> {
+    let excludes = host
+        .project(window)
+        .map(|p| {
+            let globs = p.exclude_globs();
+            // `read_dir` matches relative to the enclosing repository: re-anchor
+            // project-root patterns (`/build`) when the project is a repo subfolder.
+            let repo = p.root.ancestors().find(|d| d.join(".git").exists());
+            match repo.and_then(|r| p.root.strip_prefix(r).ok()).filter(|rel| !rel.as_os_str().is_empty()) {
+                Some(rel) => {
+                    let rel = rel.to_string_lossy().replace('\\', "/");
+                    globs.into_iter().map(|g| if g.starts_with('/') { format!("/{rel}{g}") } else { g }).collect()
                }
-            })
-            .unwrap_or_default();
-        ide_vfs::read_dir(&path, &excludes)
-    })
-    .await
+                None => globs,
+            }
+        })
+        .unwrap_or_default();
+    ide_vfs::read_dir(&path, &excludes)
 }

 /// Creates an empty file; inside a project, honours the EditorConfig
@@ -59,9 +59,9 @@ async fn resolve_launch(
        .map_err(|e| IdeError::internal(e.to_string()))?
    };
    let external_build = if delegated { Some(project.lsp.java_external_build(&module, cancel).await?) } else { None };
-    let mut info = project.lsp.java_launch(&module, test, build && !delegated, delegated, cancel).await?;
+    let mut info = project.lsp.java_launch(&module, test, build && !delegated, cancel).await?;
    let lsp_ms = started.elapsed().as_millis();
-    let data_dir = host.local_data_dir.clone();
+    let data_dir = host.data_dir.clone();
    let cancel = cancel.clone();
    tokio::task::spawn_blocking(move || {
        let _external_build = external_build;
@@ -86,7 +86,7 @@ async fn resolve_launch(
        };
        let mut class_paths: Vec<String> = built.iter().map(|p| p.to_string_lossy().into_owned()).collect();
        for p in std::mem::take(&mut info.class_paths) {
-            if !class_paths.iter().any(|c| same_entry(c, &p, cfg!(windows))) {
+            if !class_paths.contains(&p) {
                class_paths.push(p);
            }
        }
@@ -96,13 +96,7 @@ async fn resolve_launch(
        let project_jdk = ide_sdk::apply::project_jdk(&project.root, &settings);
        let from_jdtls = info.java_home.as_deref().map(ide_sdk::java::java_executable).filter(|p| p.is_file());
        let java = project_jdk.map(|j| ide_sdk::java::java_executable(&j.home)).or(from_jdtls).or_else(|| {
-            // The build model's level includes what the module inherits from its parent POMs.
-            let release = model
-                .maven
-                .as_ref()
-                .and_then(|m| m.projects.iter().find(|p| project.root.join(&p.dir) == module))
-                .and_then(|p| p.java_version)
-                .or_else(|| ide_sdk::java::project_java_version(&module));
+            let release = ide_sdk::java::project_java_version(&module);
            let jdks = ide_sdk::java::installed_jdks();
            info.hints.extend(ide_sdk::java::missing_jdk_message(&jdks, release));
            ide_sdk::java::pick_jdk(&jdks, release).map(|j| ide_sdk::java::java_executable(&j.home))
@@ -137,44 +131,15 @@ async fn resolve_launch(
    .map_err(|e| IdeError::internal(e.to_string()))?
 }

-/// A classpath entry as a comparable key. Entries come from JDT LS and from our own
-/// build model, which spell one directory differently on Windows (`\\?\` prefix,
-/// `/` or `\\`, drive-letter case); compared as text, a module output stayed on the
-/// classpath next to its launch snapshot and every resource was found twice.
-fn entry_key(path: &str, windows: bool) -> String {
-    let path = match path.strip_prefix(r"\\?\UNC\") {
-        Some(share) => format!(r"\\{share}"),
-        None => path.strip_prefix(r"\\?\").unwrap_or(path).to_owned(),
-    };
-    let mut key = if windows { path.replace('\\', "/") } else { path };
-    while key.len() > 1 && key.ends_with('/') {
-        key.pop();
-    }
-    if windows { key.to_lowercase() } else { key }
-}
-
-fn same_entry(a: &str, b: &str, windows: bool) -> bool {
-    a == b || entry_key(a, windows) == entry_key(b, windows)
-}
-
 fn use_snapshot(info: &mut JavaLaunchInfo, built: &[PathBuf], snapshot: &std::path::Path) -> Vec<PathBuf> {
-    use_snapshot_on(info, built, snapshot, cfg!(windows))
-}
-
-fn use_snapshot_on(
-    info: &mut JavaLaunchInfo,
-    built: &[PathBuf],
-    snapshot: &std::path::Path,
-    windows: bool,
-) -> Vec<PathBuf> {
    let mut copies = Vec::new();
    for (index, source) in built.iter().enumerate() {
        let dest = snapshot.join(index.to_string());
        let original = source.to_string_lossy();
-        info.class_paths.retain(|p| !same_entry(p, &original, windows));
+        info.class_paths.retain(|p| p != original.as_ref());
        let mut modular = false;
        for path in &mut info.module_paths {
-            if same_entry(path, &original, windows) {
+            if path == original.as_ref() {
                *path = dest.to_string_lossy().into_owned();
                modular = true;
            }
@@ -220,39 +185,6 @@ pub(crate) fn register(d: &mut Dispatcher) {
 mod tests {
    use super::*;

-    /// JDT LS and our build model spell a module output differently on Windows; the
-    /// snapshot must still replace it, or resources (MyBatis mapper XML) load twice.
-    #[test]
-    fn snapshots_replace_outputs_however_windows_spells_them() {
-        let built = PathBuf::from(r"D:\workspace\arm\arm-web\target/classes");
-        let jdtls = [
-            r"D:\workspace\arm\arm-web\target\classes",
-            r"d:\workspace\arm\arm-web\target\classes",
-            r"D:/workspace/arm/arm-web/target/classes/",
-            r"\\?\D:\workspace\arm\arm-web\target\classes",
-        ];
-        for spelled in jdtls {
-            let mut info = JavaLaunchInfo {
-                class_paths: vec![spelled.into(), r"D:\m2\mybatis.jar".into()],
-                module_paths: vec![spelled.into()],
-                ..Default::default()
-            };
-            use_snapshot_on(&mut info, std::slice::from_ref(&built), std::path::Path::new(r"C:\cache\launch-x"), true);
-            assert_eq!(info.class_paths, [r"D:\m2\mybatis.jar"], "{spelled}");
-            assert_eq!(
-                info.module_paths,
-                [std::path::Path::new(r"C:\cache\launch-x").join("0").to_string_lossy()],
-                "{spelled}"
-            );
-        }
-        assert!(same_entry(r"\\?\UNC\server\share\app\target\classes", r"\\server\share\app\target/classes", true));
-        // Different directories stay different, and other platforms keep case and `\`.
-        assert!(!same_entry(r"D:\a\target\classes", r"D:\a\target\test-classes", true));
-        assert!(!same_entry("/work/App/target/classes", "/work/app/target/classes", false));
-        assert!(!same_entry(r"/work/a\b", "/work/a/b", false));
-        assert!(same_entry("/work/app/target/classes/", "/work/app/target/classes", false));
-    }
-
    #[test]
    fn launch_snapshots_survive_jdt_overwrites_and_replace_module_outputs() {
        let root = tempfile::tempdir().unwrap();
@@ -1,7 +1,7 @@
 //! Bounded, read-only JVM presentation for visible files, also served remotely.
 use crate::Host;
 use ide_core::{CancellationToken, IdeError, IdeResult, LanguageId};
-use ide_syntax::{JvmPresentation, Snapshot, StructureService, jvm_type_header};
+use ide_syntax::{JvmPresentation, Snapshot};
 use serde::{Deserialize, Serialize};
 use specta::Type;
 use std::{
@@ -38,27 +38,6 @@ fn prefix(path: &PathBuf) -> std::io::Result<String> {
    Ok(String::from_utf8_lossy(&bytes).into_owned())
 }

-/// The presentation of the file at `path` from its first [`PREFIX_BYTES`].
-fn read_presentation(
-    structure: &StructureService,
-    path: &PathBuf,
-    language: &LanguageId,
-) -> IdeResult<JvmPresentation> {
-    let source = prefix(path)?;
-    let stem = path.file_stem().and_then(|s| s.to_str()).unwrap_or_default();
-    let present =
-        |source: &str| structure.jvm_presentation(&Snapshot::text(language, source), stem, &CancellationToken::new());
-    let presentation = present(&source)?;
-    // Cut off inside its body, a large file doesn't parse as a declaration: its header does.
-    if presentation.kind.is_none()
-        && source.len() as u64 >= PREFIX_BYTES
-        && let Some(header) = jvm_type_header(&source)
-    {
-        return Ok(present(&format!("{header}}}"))?);
-    }
-    Ok(presentation)
-}
-
 pub async fn jvm_file_presentations(
    host: &Host,
    window: &str,
@@ -88,7 +67,13 @@ pub async fn jvm_file_presentations(
            let presentation = if let Some(hit) = hit {
                hit.presentation
            } else {
-                let Ok(presentation) = read_presentation(&project.structure, &path, &language) else { continue };
+                let Ok(source) = prefix(&path) else { continue };
+                let stem = path.file_stem().and_then(|s| s.to_str()).unwrap_or_default();
+                let presentation = project.structure.jvm_presentation(
+                    &Snapshot::text(&language, &source),
+                    stem,
+                    &CancellationToken::new(),
+                )?;
                let mut cache = cache.lock().unwrap();
                if cache.len() >= MAX_CACHE {
                    cache.clear();
@@ -114,21 +99,4 @@ mod tests {
        assert_eq!(prefix(&path).unwrap().len(), PREFIX_BYTES as usize);
        std::fs::remove_file(path).unwrap();
    }
-
-    #[test]
-    fn large_files_cut_off_in_their_body_keep_their_kind() {
-        let dir = tempfile::tempdir().unwrap();
-        let path = dir.path().join("Foo.java");
-        let mut text = String::from("package a;\n\n@Service\npublic class Foo implements IFoo {\n");
-        while text.len() < PREFIX_BYTES as usize + 1024 {
-            // The prefix ends inside one of these comments.
-            text.push_str("    /**\n     * Does something.\n     */\n    public void m() { call(\"x\"); }\n");
-        }
-        std::fs::write(&path, &text).unwrap();
-        let syntax = std::sync::Arc::new(ide_language::Syntax::new());
-        let structure = StructureService::new(std::sync::Arc::new(ide_language::SyntaxCache::new(syntax)));
-        let java = LanguageId::new("java");
-        let presentation = read_presentation(&structure, &path, &java).unwrap();
-        assert_eq!(presentation.kind, Some(ide_syntax::JvmTypeKind::Class));
-    }
 }
@@ -1,34 +1,8 @@
-use super::doc::blocking;
 use crate::Host;
 use crate::apply_workspace_edit as apply_edit;
-use crate::plugins::{ProviderKind, editor_providers_for as editor_providers};
 use crate::rpc::Dispatcher;
 use ide_core::{DocId, IdeResult, Location, Pos, Range, RequestId, ServerId, TextEdit, WorkspaceEdit};
 use ide_lsp::types::*;
-use ide_plugin::ProviderDocument;
-
-async fn prepare_actions(
-    project: std::sync::Arc<crate::Project>,
-    doc: DocId,
-    version: u32,
-    mut actions: Vec<CodeAction>,
-) -> IdeResult<Vec<CodeAction>> {
-    blocking(move || {
-        if project.documents.version(doc)? != version {
-            return Err(ide_core::IdeError::new(
-                ide_core::error::ErrorKind::OutOfSync,
-                "document changed while computing code actions; request them again",
-            ));
-        }
-        for action in &mut actions {
-            if let Some(edit) = &mut action.edit {
-                project.documents.prepare_workspace_edit(edit)?;
-            }
-        }
-        Ok(actions)
-    })
-    .await
-}

 pub async fn lsp_completion(
    host: &Host,
@@ -40,99 +14,9 @@ pub async fn lsp_completion(
 ) -> IdeResult<CompletionList> {
    let lsp = host.project(window)?.lsp.clone();
    let cancel = host.begin_request(request);
-    let result = lsp.completion(doc, pos, trigger.clone(), cancel).await;
+    let result = lsp.completion(doc, pos, trigger, cancel).await;
    host.end_request(request);
-    // Plugin providers (`[[contributes.providers]]`) add theirs.
-    let Some((plugins, d)) = plugin_providers(host, window, doc, ProviderKind::Completion) else { return result };
-    let items = plugin_call(move || plugins.provide_completion(&d, pos, trigger.as_deref())).await.unwrap_or_default();
-    if items.is_empty() {
-        return result;
-    }
-    let mut list = result.unwrap_or(CompletionList { is_incomplete: false, items: Vec::new() });
-    list.items.extend(items.into_iter().map(|(_, item)| plugin_completion(item)));
-    Ok(list)
-}
-
-/// The plugin host and the document, when some plugin provides `kind`.
-fn plugin_providers(
-    host: &Host,
-    window: &str,
-    doc: DocId,
-    kind: ProviderKind,
-) -> Option<(std::sync::Arc<crate::plugins::PluginHost>, ProviderDocument)> {
-    let plugins = editor_providers(kind)?;
-    let snap = host.project(window).ok()?.documents.snapshot(doc).ok()?;
-    let d = ProviderDocument {
-        path: snap.path.0,
-        language: snap.language.0,
-        version: u64::from(snap.version),
-        text: snap.text,
-    };
-    Some((plugins, d))
-}
-
-/// Plugin calls block (the plugin's actor thread does the work).
-async fn plugin_call<T: Send + 'static>(f: impl FnOnce() -> T + Send + 'static) -> Option<T> {
-    tokio::task::spawn_blocking(f).await.ok()
-}
-
-/// Items from plugins carry no server (resolve and commands don't apply).
-const PLUGIN_SERVER: ServerId = ServerId(0);
-
-/// A plugin's `completion-item.kind` (wit/providers.wit lists them).
-fn plugin_completion_kind(kind: &str) -> Option<CompletionKind> {
-    Some(match kind {
-        "text" => CompletionKind::Text,
-        "method" => CompletionKind::Method,
-        "function" => CompletionKind::Function,
-        "constructor" => CompletionKind::Constructor,
-        "field" => CompletionKind::Field,
-        "variable" => CompletionKind::Variable,
-        "class" => CompletionKind::Class,
-        "interface" => CompletionKind::Interface,
-        "module" => CompletionKind::Module,
-        "property" => CompletionKind::Property,
-        "unit" => CompletionKind::Unit,
-        "value" => CompletionKind::Value,
-        "enum" => CompletionKind::Enum,
-        "keyword" => CompletionKind::Keyword,
-        "snippet" => CompletionKind::Snippet,
-        "color" => CompletionKind::Color,
-        "file" => CompletionKind::File,
-        "reference" => CompletionKind::Reference,
-        "folder" => CompletionKind::Folder,
-        "enum-member" => CompletionKind::EnumMember,
-        "constant" => CompletionKind::Constant,
-        "struct" => CompletionKind::Struct,
-        "event" => CompletionKind::Event,
-        "operator" => CompletionKind::Operator,
-        "type-parameter" => CompletionKind::TypeParameter,
-        _ => return None,
-    })
-}
-
-fn plugin_completion(item: ide_plugin::CompletionItem) -> CompletionItem {
-    let kind = item.kind.as_deref().and_then(plugin_completion_kind);
-    CompletionItem {
-        label: item.label,
-        label_detail: None,
-        detail: item.detail,
-        kind,
-        documentation: item.documentation.map(|value| Markup { kind: "markdown".into(), value }),
-        sort_text: item.sort_text,
-        filter_text: None,
-        preselect: false,
-        deprecated: false,
-        insert_text: item.insert_text,
-        is_snippet: false,
-        replace_range: item.replace,
-        replace_range_tab: None,
-        additional_edits: Vec::new(),
-        commit_characters: Vec::new(),
-        command: None,
-        data: None,
-        server: PLUGIN_SERVER,
-    }
+    result
 }

 /// Inline (ghost text) suggestions at `pos`; `automatic` when triggered by typing.
@@ -146,26 +30,9 @@ pub async fn lsp_inline_completion(
 ) -> IdeResult<Vec<InlineCompletionItem>> {
    let lsp = host.project(window)?.lsp.clone();
    let cancel = host.begin_request(request);
-    let result = lsp.inline_completion(doc, pos, automatic, cancel.clone()).await;
-    // Plugins: cancelled (cooperatively) when the editor cancels the request.
-    let plugin = match plugin_providers(host, window, doc, ProviderKind::InlineCompletion) {
-        Some((plugins, d)) if !matches!(&result, Ok(items) if !items.is_empty()) => {
-            let cancel = cancel.clone();
-            plugin_call(move || plugins.provide_inline_completion(&d, pos, &cancel)).await.flatten()
-        }
-        _ => None,
-    };
+    let result = lsp.inline_completion(doc, pos, automatic, cancel).await;
    host.end_request(request);
-    match plugin {
-        Some((_, s)) => Ok(vec![InlineCompletionItem {
-            insert_text: s.insert_text,
-            range: s.replace,
-            filter_text: None,
-            command: None,
-            server: PLUGIN_SERVER,
-        }]),
-        None => result,
-    }
+    result
 }

 pub async fn lsp_resolve_completion(
@@ -196,40 +63,7 @@ pub async fn lsp_signature_help(host: &Host, window: &str, doc: DocId, pos: Pos)
 }

 pub async fn lsp_goto(host: &Host, window: &str, doc: DocId, pos: Pos, kind: GotoKind) -> IdeResult<Vec<Location>> {
-    let result = host.project(window)?.lsp.goto(doc, pos, kind).await;
-    if kind != GotoKind::Definition {
-        return result;
-    }
-    let Some((plugins, d)) = plugin_providers(host, window, doc, ProviderKind::Definition) else { return result };
-    let found = plugin_call(move || plugins.provide_definition(&d, pos)).await.unwrap_or_default();
-    if found.is_empty() {
-        return result;
-    }
-    let mut out = result.unwrap_or_default();
-    out.extend(found.into_iter().map(|l| Location { path: l.path.into(), range: l.range, uri: None }));
-    Ok(out)
-}
-
-/// Gutter markers from plugins (`line-markers` providers) for `doc`.
-pub async fn plugin_line_markers(
-    host: &Host,
-    window: &str,
-    doc: DocId,
-) -> IdeResult<Vec<crate::plugins::LineMarkerInfo>> {
-    let Some((plugins, d)) = plugin_providers(host, window, doc, ProviderKind::LineMarkers) else {
-        return Ok(Vec::new());
-    };
-    let markers = plugin_call(move || plugins.provide_line_markers(&d)).await.unwrap_or_default();
-    Ok(markers
-        .into_iter()
-        .map(|(plugin_id, m)| crate::plugins::LineMarkerInfo {
-            plugin_id,
-            line: m.line,
-            icon: m.icon,
-            tooltip: m.tooltip,
-            target: m.target.map(|l| Location { path: l.path.into(), range: l.range, uri: None }),
-        })
-        .collect())
+    host.project(window)?.lsp.goto(doc, pos, kind).await
 }

 /// Implementations of the symbols at `positions`, one list per position (the
@@ -304,48 +138,7 @@ pub async fn lsp_code_actions(
    range: Range,
    only: Vec<String>,
 ) -> IdeResult<Vec<CodeAction>> {
-    let project = host.project(window)?;
-    let documents = project.documents.clone();
-    let version = blocking(move || documents.version(doc)).await?;
-    let result = project.lsp.code_actions(doc, range, only.clone()).await;
-    let plugin_actions = match plugin_providers(host, window, doc, ProviderKind::CodeActions) {
-        Some((plugins, d)) => plugin_call(move || plugins.provide_code_actions(&d, range)).await.unwrap_or_default(),
-        None => Vec::new(),
-    };
-    let plugin_actions: Vec<CodeAction> = plugin_actions
-        .into_iter()
-        .map(|(_, a)| plugin_code_action(a))
-        .filter(|a| {
-            only.is_empty()
-                || a.kind.as_ref().is_some_and(|k| only.iter().any(|o| k == o || k.starts_with(&format!("{o}."))))
-        })
-        .collect();
-    let actions = if plugin_actions.is_empty() {
-        result?
-    } else {
-        let mut out = result.unwrap_or_default();
-        out.extend(plugin_actions);
-        out
-    };
-    prepare_actions(project, doc, version, actions).await
-}
-
-fn plugin_code_action(a: ide_plugin::CodeAction) -> CodeAction {
-    let files = a
-        .edits
-        .into_iter()
-        .map(|(path, edits)| ide_core::FileEdit::Edit { path: path.into(), edits, version: None })
-        .collect();
-    CodeAction {
-        title: a.title,
-        kind: a.kind,
-        is_preferred: a.preferred,
-        disabled_reason: None,
-        edit: Some(WorkspaceEdit { files, preconditions: Vec::new() }),
-        command: None,
-        data: None,
-        server: PLUGIN_SERVER,
-    }
+    host.project(window)?.lsp.code_actions(doc, range, only).await
 }

 /// Cancellable code actions with the kinds the servers advertise (Refactor This, refactoring availability).
@@ -357,15 +150,11 @@ pub async fn lsp_code_action_query(
    range: Range,
    only: Vec<String>,
 ) -> IdeResult<CodeActionQuery> {
-    let project = host.project(window)?;
-    let documents = project.documents.clone();
-    let version = blocking(move || documents.version(doc)).await?;
+    let lsp = host.project(window)?.lsp.clone();
    let cancel = host.begin_request(request);
-    let result = project.lsp.code_action_query(doc, range, only, cancel).await;
+    let result = lsp.code_action_query(doc, range, only, cancel).await;
    host.end_request(request);
-    let mut result = result?;
-    result.actions = prepare_actions(project, doc, version, result.actions).await?;
-    Ok(result)
+    result
 }

 /// Resolves a code action's edit without applying it (intention preview).
@@ -378,28 +167,19 @@ pub async fn lsp_resolve_code_action(
    if action.edit.is_some() {
        return Ok(action);
    }
-    let project = host.project(window)?;
-    let documents = project.documents.clone();
-    let version = blocking(move || documents.version(doc)).await?;
-    let action = project.lsp.resolve_code_action(doc, action).await?;
-    Ok(prepare_actions(project, doc, version, vec![action]).await?.remove(0))
+    host.project(window)?.lsp.resolve_code_action(doc, action).await
 }

 /// Resolves (if needed), applies the edit, then runs the command of a code action.
 pub async fn lsp_apply_code_action(host: &Host, window: &str, doc: DocId, action: CodeAction) -> IdeResult<()> {
    let project = host.project(window)?;
    let action = if action.edit.is_none() && action.command.is_none() {
-        let documents = project.documents.clone();
-        let version = blocking(move || documents.version(doc)).await?;
-        let action = project.lsp.resolve_code_action(doc, action).await?;
-        prepare_actions(project.clone(), doc, version, vec![action]).await?.remove(0)
+        project.lsp.resolve_code_action(doc, action).await?
    } else {
        action
    };
    if let Some(edit) = &action.edit {
-        let documents = project.documents.clone();
-        let edit = edit.clone();
-        blocking(move || apply_edit(&documents, &edit)).await?;
+        apply_edit(&project.documents, edit)?;
    }
    if let Some(command) = action.command {
        project.lsp.execute_command(doc, command).await?;
@@ -420,24 +200,11 @@ pub async fn lsp_rename(
    pos: Pos,
    new_name: String,
 ) -> IdeResult<Renamed> {
-    let project = host.project(window)?;
-    let documents = project.documents.clone();
-    let version = blocking(move || documents.version(doc)).await?;
+    let lsp = host.project(window)?.lsp.clone();
    let cancel = host.begin_request(request);
-    let result = project.lsp.rename(doc, pos, new_name, cancel).await;
+    let result = lsp.rename(doc, pos, new_name, cancel).await;
    host.end_request(request);
-    let mut renamed = result?;
-    blocking(move || {
-        if project.documents.version(doc)? != version {
-            return Err(ide_core::IdeError::new(
-                ide_core::error::ErrorKind::OutOfSync,
-                "document changed while computing rename; request it again",
-            ));
-        }
-        project.documents.prepare_workspace_edit(&mut renamed.edit)?;
-        Ok(renamed)
-    })
-    .await
+    result
 }

 pub async fn lsp_format(
@@ -512,43 +279,21 @@ pub async fn lsp_restart(host: &Host, window: &str, server: ServerId) -> IdeResu
 }

 /// Applies a (previewed) workspace edit, e.g. after rename confirmation.
-pub async fn apply_workspace_edit(host: &Host, window: &str, edit: WorkspaceEdit) -> IdeResult<()> {
+pub fn apply_workspace_edit(host: &Host, window: &str, edit: WorkspaceEdit) -> IdeResult<()> {
    let project = host.project(window)?;
-    blocking(move || {
-        // Multi-file refactorings leave a Local History point to go back to.
-        let paths: Vec<&std::path::Path> = edit
-            .files
-            .iter()
-            .filter_map(|f| match f {
-                ide_core::FileEdit::Edit { path, .. } => Some(&**path),
-                _ => None,
-            })
-            .collect();
-        if edit.files.len() > 1 {
-            project.record_before_refactoring(&paths, "Apply changes");
-        }
-        apply_edit(&project.documents, &edit)
-    })
-    .await
-}
-
-pub async fn prepare_workspace_edit(host: &Host, window: &str, mut edit: WorkspaceEdit) -> IdeResult<WorkspaceEdit> {
-    let project = host.project(window)?;
-    blocking(move || {
-        project.documents.prepare_workspace_edit(&mut edit)?;
-        Ok(edit)
-    })
-    .await
-}
-
-pub async fn undo_workspace_edit(host: &Host, window: &str, id: u32) -> IdeResult<()> {
-    let project = host.project(window)?;
-    blocking(move || project.documents.undo_workspace_edit(id)).await
-}
-
-pub async fn redo_workspace_edit(host: &Host, window: &str, id: u32) -> IdeResult<()> {
-    let project = host.project(window)?;
-    blocking(move || project.documents.redo_workspace_edit(id)).await
+    // Multi-file refactorings leave a Local History point to go back to.
+    let paths: Vec<&std::path::Path> = edit
+        .files
+        .iter()
+        .filter_map(|f| match f {
+            ide_core::FileEdit::Edit { path, .. } => Some(&**path),
+            _ => None,
+        })
+        .collect();
+    if edit.files.len() > 1 {
+        project.record_before_refactoring(&paths, "Apply changes");
+    }
+    apply_edit(&project.documents, &edit)
 }

 /// Runs a server command (`workspace/executeCommand`), e.g. a completion item's
@@ -696,7 +441,7 @@ pub(crate) fn register(d: &mut Dispatcher) {
    d.add("lsp_servers", |c| async move { lsp_servers(&c.host, &c.window) });
    d.add("lsp_resend_diagnostics", |c| async move { lsp_resend_diagnostics(&c.host, &c.window) });
    d.add("lsp_restart", |c| async move { lsp_restart(&c.host, &c.window, c.arg("server")?).await });
-    d.add("apply_workspace_edit", |c| async move { apply_workspace_edit(&c.host, &c.window, c.arg("edit")?).await });
+    d.add("apply_workspace_edit", |c| async move { apply_workspace_edit(&c.host, &c.window, c.arg("edit")?) });
    d.add("lsp_resolve_command", |c| async move {
        lsp_resolve_command(
            &c.host,
@@ -720,38 +465,7 @@ pub(crate) fn register(d: &mut Dispatcher) {
        )
        .await
    });
-    d.add(
-        "prepare_workspace_edit",
-        |c| async move { prepare_workspace_edit(&c.host, &c.window, c.arg("edit")?).await },
-    );
-    d.add("redo_workspace_edit", |c| async move { redo_workspace_edit(&c.host, &c.window, c.arg("id")?).await });
-    d.add("undo_workspace_edit", |c| async move { undo_workspace_edit(&c.host, &c.window, c.arg("id")?).await });
    d.add("lsp_execute_command", |c| async move {
        lsp_execute_command(&c.host, &c.window, c.arg("doc")?, c.arg("command")?).await
    });
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn every_completion_kind_the_plugin_api_documents_is_understood() {
-        let wit = include_str!("../../../../wit/providers.wit");
-        let doc: String = wit
-            .lines()
-            .map(|l| l.trim().trim_start_matches("///").trim())
-            .skip_while(|l| !l.starts_with("Icon and sort group:"))
-            .take_while(|l| !l.starts_with("kind:"))
-            .collect::<Vec<_>>()
-            .join(" ");
-        let list = doc.strip_prefix("Icon and sort group:").unwrap().split(". Unknown").next().unwrap();
-        let list = list.replace(" or ", ", ");
-        let kinds: Vec<&str> = list.split(',').map(str::trim).filter(|k| !k.is_empty()).collect();
-        assert_eq!(kinds.len(), 25, "{kinds:?}");
-        for k in kinds {
-            assert!(plugin_completion_kind(k).is_some(), "{k:?}");
-        }
-        assert_eq!(plugin_completion_kind("nonsense"), None);
-    }
-}
@@ -7,9 +7,7 @@ pub mod analysis;
 pub mod build;
 pub mod bytes;
 pub mod coverage;
-pub mod db;
 pub mod debug;
-pub mod dependencies;
 pub mod deploy;
 pub mod doc;
 pub mod env;
@@ -23,7 +21,6 @@ pub mod notebook;
 pub mod project;
 mod python;
 pub mod refactor;
-pub mod routes;
 pub mod run;
 pub mod sdk;
 pub mod search;
@@ -72,7 +69,6 @@ pub fn register_all(d: &mut crate::rpc::Dispatcher) {
    analysis::register(d);
    syntax::register(d);
    spell::register(d);
-    dependencies::register(d);
    history::register(d);
    coverage::register(d);
    build::register(d);
@@ -87,7 +83,6 @@ pub fn register_all(d: &mut crate::rpc::Dispatcher) {
    run::register(d);
    env::register(d);
    deploy::register(d);
-    db::register(d);
 }

 impl Host {
@@ -1,6 +1,7 @@
 //! File move / rename refactoring: reference updates from the language
 //! servers, the move itself (one undoable step) and its undo.
 use crate::Host;
+use crate::apply_workspace_edit;
 use crate::rpc::Dispatcher;

 use ide_core::{IdeResult, RequestId, WorkspaceEdit};
@@ -25,12 +26,7 @@ pub async fn refactor_file_move_edits(
    let token = host.begin_request(request);
    let result = project.lsp.will_rename_files(&pairs(&moves), token).await;
    host.end_request(request);
-    let mut result = result?;
-    blocking(move || {
-        project.documents.prepare_workspace_edit(&mut result.edit)?;
-        Ok(result)
-    })
-    .await
+    result
 }

 /// Applies `edit` (from [`refactor_file_move_edits`], possibly empty), moves the
@@ -46,7 +42,7 @@ pub async fn refactor_move_files(
    let p = project.clone();
    let moved = moves.clone();
    let id = blocking(move || {
-        let apply = |e: &WorkspaceEdit| p.documents.apply_file_move_edits(e);
+        let apply = |e: &WorkspaceEdit| apply_workspace_edit(&p.documents, e);
        p.moves.perform(&p.documents, Some(&p.history), &moved, &edit, &label, &apply)
    })
    .await?;
@@ -81,17 +77,13 @@ pub async fn refactor_file_move_text_edits(
    let cancel = token.clone();
    let result = blocking(move || {
        let replacements = ide_workspace::text_refs::move_replacements(&project.root, &project.roots(), &moves);
-        let mut edit = ide_workspace::text_refs::find_text_occurrences(
+        let edit = ide_workspace::text_refs::find_text_occurrences(
            &project.root,
            &project.exclude_globs(),
            &replacements,
            &|| cancel.is_cancelled(),
        );
-        if cancel.is_cancelled() {
-            return Err(ide_core::IdeError::cancelled());
-        }
-        project.documents.prepare_workspace_edit(&mut edit)?;
-        Ok(edit)
+        if cancel.is_cancelled() { Err(ide_core::IdeError::cancelled()) } else { Ok(edit) }
    })
    .await;
    host.end_request(request);
@@ -1,134 +0,0 @@
-//! Spring Web mappings, source side: the project's Java and Kotlin files that could
-//! declare a route, with their text. The UI owns the annotation parser and the index
-//! it feeds, so this side stays a cheap scan.
-
-use crate::Host;
-use ide_core::IdeResult;
-use serde::{Deserialize, Serialize};
-use specta::Type;
-use std::path::{Path, PathBuf};
-use std::sync::Mutex;
-use std::sync::atomic::{AtomicUsize, Ordering};
-
-/// Files handed out at most, and bytes in total: a project's controllers fit well
-/// inside these, and the UI indexes them once.
-const MAX_FILES: usize = 1024;
-const MAX_BYTES: usize = 48 << 20;
-/// A single source bigger than this is not a controller.
-const MAX_FILE_BYTES: u64 = 4 << 20;
-
-#[derive(Clone, Debug, Serialize, Deserialize, Type)]
-#[serde(rename_all = "camelCase")]
-pub struct RouteSource {
-    pub path: String,
-    pub text: String,
-}
-
-/// The files Spring mappings can live in: Java and Kotlin sources.
-fn declares_mappings(path: &Path) -> bool {
-    matches!(path.extension().and_then(|e| e.to_str()), Some("java" | "kt" | "kts"))
-}
-
-/// Files under `root` whose text names a mapping: `ignore` rules and `excludes`
-/// decide what counts, and the UI ranks the matches itself.
-pub(crate) fn sources_in(root: &Path, excludes: &[String]) -> Vec<RouteSource> {
-    let found: Mutex<Vec<RouteSource>> = Mutex::new(Vec::new());
-    let bytes = AtomicUsize::new(0);
-    ide_vfs::walk_files(root, excludes, |path| {
-        if !declares_mappings(path) || bytes.load(Ordering::Relaxed) >= MAX_BYTES {
-            return;
-        }
-        if std::fs::metadata(path).map_or(true, |m| m.len() > MAX_FILE_BYTES) {
-            return;
-        }
-        let Ok(text) = std::fs::read_to_string(path) else { return };
-        // Only a file that names a mapping annotation is worth parsing.
-        if !text.contains("Mapping") {
-            return;
-        }
-        let Ok(mut found) = found.lock() else { return };
-        if found.len() >= MAX_FILES {
-            return;
-        }
-        bytes.fetch_add(text.len(), Ordering::Relaxed);
-        found.push(RouteSource { path: path.to_string_lossy().into_owned(), text });
-    });
-    let mut files = found.into_inner().unwrap_or_default();
-    files.sort_by(|a, b| a.path.cmp(&b.path));
-    files
-}
-
-/// The folders to scan: the project folder itself first, then content roots outside it
-/// (`content_roots` lists only the ones outside, so the project folder is never implied —
-/// forgetting it scans nothing).
-fn scan_roots(root: &Path, content_roots: Vec<PathBuf>) -> Vec<PathBuf> {
-    let mut roots = vec![root.to_path_buf()];
-    roots.extend(content_roots);
-    roots
-}
-
-/// Every mapping source of the project, for the request-path index.
-pub fn spring_route_sources(host: &Host, window: &str) -> IdeResult<Vec<RouteSource>> {
-    let project = host.project(window)?;
-    let excludes = project.search_excludes();
-    let mut out = Vec::new();
-    for root in scan_roots(&project.root, project.content_roots()) {
-        out.extend(sources_in(&root, &excludes));
-    }
-    out.sort_by(|a, b| a.path.cmp(&b.path));
-    out.dedup_by(|a, b| a.path == b.path);
-    match out.len() {
-        0 => tracing::warn!("spring routes: no mapping source under {:?} (excludes: {})", project.root, excludes.len()),
-        n => tracing::info!("spring routes: {n} mapping sources under {:?}", project.root),
-    }
-    Ok(out)
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn the_project_folder_is_scanned_even_without_other_content_roots() {
-        let root = Path::new("/p/demo");
-        assert_eq!(scan_roots(root, Vec::new()), [PathBuf::from("/p/demo")]);
-        assert_eq!(
-            scan_roots(root, vec![PathBuf::from("/p/elsewhere")]),
-            [PathBuf::from("/p/demo"), PathBuf::from("/p/elsewhere")]
-        );
-    }
-
-    #[test]
-    fn only_java_and_kotlin_sources_are_read() {
-        for (name, expected) in
-            [("A.java", true), ("B.kt", true), ("C.kts", true), ("D.txt", false), ("pom.xml", false), ("noext", false)]
-        {
-            assert_eq!(declares_mappings(Path::new(name)), expected, "{name}");
-        }
-    }
-
-    #[test]
-    fn files_that_name_no_mapping_are_left_out() {
-        let tmp = tempfile::tempdir().unwrap();
-        std::fs::create_dir_all(tmp.path().join("src")).unwrap();
-        std::fs::write(tmp.path().join("src/Ctl.java"), "class Ctl { @GetMapping(\"/a\") void a() {} }").unwrap();
-        std::fs::write(tmp.path().join("src/Plain.java"), "class Plain { void a() {} }").unwrap();
-        std::fs::write(tmp.path().join("src/Notes.txt"), "@GetMapping(\"/a\")").unwrap();
-        let files = sources_in(tmp.path(), &[]);
-        assert_eq!(files.len(), 1, "{:?}", files.iter().map(|f| &f.path).collect::<Vec<_>>());
-        assert!(Path::new(&files[0].path).ends_with("src/Ctl.java"), "{}", files[0].path);
-        assert!(files[0].text.contains("@GetMapping"));
-    }
-
-    #[test]
-    fn excluded_folders_are_skipped() {
-        let tmp = tempfile::tempdir().unwrap();
-        std::fs::create_dir_all(tmp.path().join("module/src")).unwrap();
-        std::fs::create_dir_all(tmp.path().join("build")).unwrap();
-        std::fs::write(tmp.path().join("module/src/A.java"), "@RequestMapping(\"/a\")").unwrap();
-        std::fs::write(tmp.path().join("build/B.java"), "@RequestMapping(\"/b\")").unwrap();
-        let files = sources_in(tmp.path(), &["build/**".to_owned()]);
-        assert_eq!(files.len(), 1, "{:?}", files.iter().map(|f| &f.path).collect::<Vec<_>>());
-        assert!(Path::new(&files[0].path).ends_with("module/src/A.java"), "{}", files[0].path);
-    }
-}
@@ -50,11 +50,10 @@ fn detected_and_saved(
    suppressed: &[String],
 ) -> Vec<RunConfig> {
    let excluded_poms = crate::project::unlinked_maven_poms(root, settings);
-    let mut all: Vec<RunConfig> =
-        ide_run::detect_with_profiles(root, &excluded_poms, settings.cmake.profiles.as_deref())
-            .into_iter()
-            .filter(|d| !suppressed.contains(&d.id) && !saved.iter().any(|u| u.id == d.id))
-            .collect();
+    let mut all: Vec<RunConfig> = ide_run::detect_excluding(root, &excluded_poms)
+        .into_iter()
+        .filter(|d| !suppressed.contains(&d.id) && !saved.iter().any(|u| u.id == d.id))
+        .collect();
    all.extend(saved.iter().cloned());
    for config in all.iter_mut().filter(|c| c.kind != "gradle") {
        ide_sdk::apply::apply_to_run_configs(std::slice::from_mut(config), root, settings);
@@ -62,24 +61,13 @@ fn detected_and_saved(
    all
 }

-/// Saves the user configurations. They come from [`configs`], toolchains applied, so what
-/// settings derived is dropped again: only the user's own choices reach `run.toml`.
 pub fn save_configs(
    host: &Host,
    window: &str,
    configs: &[RunConfig],
    removed_detected_ids: &[String],
 ) -> IdeResult<()> {
-    let project = host.project(window)?;
-    let settings = project.settings.effective();
-    let configs: Vec<RunConfig> = configs
-        .iter()
-        .map(|c| match c.kind.as_str() {
-            "gradle" => c.clone(),
-            _ => ide_sdk::apply::without_derived(c, &project.root, &settings),
-        })
-        .collect();
-    ide_run::save_user_configs_with_removals(&project.root, &configs, removed_detected_ids)
+    ide_run::save_user_configs_with_removals(&host.project(window)?.root, configs, removed_detected_ids)
 }

 pub async fn start(host: &Host, window: &str, config: RunConfig, on_output: Emit<OutputChunk>) -> IdeResult<RunInfo> {
@@ -4,24 +4,6 @@ use crate::Host;
 use crate::rpc::Dispatcher;
 use ide_core::{IdeError, IdeResult};
 use ide_run::RunConfig;
-use ide_run::import::{RunImport, RunImportSource};
-
-pub async fn run_dotnet_resolve(host: &Host, window: &str, config: RunConfig, debug: bool) -> IdeResult<RunConfig> {
-    host.require_trust(window)?;
-    if !matches!(config.kind.as_str(), "dotnet" | "dotnet-test")
-        || config.extras.target.as_ref().is_some_and(|s| !s.is_empty())
-    {
-        return Err(IdeError::invalid(".NET Project requires the local machine"));
-    }
-    let project = host.project(window)?;
-    let mut config = host.blocking(move || ide_run::dotnet::resolve(&project.root, config)).await?;
-    if debug {
-        let root = host.project(window)?.root.clone();
-        let target = ide_run::dotnet::target_path(&root, &config).await?;
-        config.extras.params.insert("targetPath".into(), target);
-    }
-    Ok(config)
-}

 fn application_cache(project: &crate::project::Project, id: &str) -> std::path::PathBuf {
    use std::hash::{Hash, Hasher};
@@ -106,25 +88,6 @@ pub fn run_save_templates(host: &Host, window: &str, templates: Vec<RunConfig>)
    ide_run::save_templates(&root, &templates)
 }

-/// Project files run configurations can be imported from (`.vscode/launch.json`).
-pub fn run_import_sources(host: &Host, window: &str) -> IdeResult<Vec<RunImportSource>> {
-    let root = host.project(window)?.root.clone();
-    Ok(ide_run::import::available(&root))
-}
-
-/// Configurations read from `source`, not saved; names already in `existing` (the
-/// configurations being edited) are skipped.
-pub fn run_import_configs(
-    host: &Host,
-    window: &str,
-    source: RunImportSource,
-    existing: Vec<RunConfig>,
-) -> IdeResult<RunImport> {
-    host.require_trust(window)?;
-    let root = host.project(window)?.root.clone();
-    ide_run::import_configs(&root, source, &existing)
-}
-
 /// The environment runs inherit when "Include system environment variables" is on.
 pub fn run_system_env(_host: &Host, _window: &str) -> std::collections::BTreeMap<String, String> {
    ide_run::system_env()
@@ -243,9 +206,6 @@ pub async fn run_tomcat_update(host: &Host, window: &str, config: RunConfig, mod

 /// Commands of this module the remote server answers.
 pub(crate) fn register(d: &mut Dispatcher) {
-    d.add("run_dotnet_resolve", |c| async move {
-        run_dotnet_resolve(&c.host, &c.window, c.arg("config")?, c.arg("debug")?).await
-    });
    d.add("run_application_build", |c| async move {
        run_application_build(&c.host, &c.window, c.arg("config")?, c.arg("module")?).await
    });
@@ -260,10 +220,6 @@ pub(crate) fn register(d: &mut Dispatcher) {
    });
    d.add("run_templates", |c| async move { run_templates(&c.host, &c.window) });
    d.add("run_save_templates", |c| async move { run_save_templates(&c.host, &c.window, c.arg("templates")?) });
-    d.add("run_import_sources", |c| async move { run_import_sources(&c.host, &c.window) });
-    d.add("run_import_configs", |c| async move {
-        run_import_configs(&c.host, &c.window, c.arg("source")?, c.arg("existing")?)
-    });
    d.add("run_system_env", |c| async move { Ok(run_system_env(&c.host, &c.window)) });
    d.add("run_gradle_jvm_args_script", |c| async move {
        run_gradle_jvm_args_script(&c.host, &c.window, c.arg("jvmArgs")?).await
@@ -122,7 +122,6 @@ pub async fn sdk_python_pip(
    on_output: Channel<String>,
 ) -> IdeResult<()> {
    host.require_trust(window)?;
-    let project_root = host.project(window).ok().map(|p| p.root.clone());
    let cancel = host.begin_project_request(window, request);
    let result = tokio::task::spawn_blocking(move || {
        let send = |line: String| {
@@ -131,7 +130,7 @@ pub async fn sdk_python_pip(
        if uninstall {
            ide_sdk::python::uninstall_package(&python, &requirement, &cancel, &send)
        } else {
-            ide_sdk::python::install_package(&python, &requirement, upgrade, project_root.as_deref(), &cancel, &send)
+            ide_sdk::python::install_package(&python, &requirement, upgrade, &cancel, &send)
        }
    })
    .await
@@ -3,21 +3,6 @@ use crate::Host;
 use ide_core::{IdeResult, TerminalId};
 use ide_terminal::{TerminalInfo, TerminalOptions};

-mod images;
-
-const MAX_IMAGE_BYTES: usize = 20 * 1024 * 1024;
-
-pub async fn store_image(host: &Host, id: TerminalId, data: Vec<u8>, mime: String) -> IdeResult<String> {
-    if data.len() > MAX_IMAGE_BYTES {
-        return Err(ide_core::IdeError::invalid("image is too large to paste (limit 20 MB)"));
-    }
-    if !host.terminals.contains(id) {
-        return Err(ide_core::IdeError::invalid("terminal session not found"));
-    }
-    let data_dir = host.data_dir.clone();
-    host.blocking(move || images::store(&data_dir, &data, &mime)).await
-}
-
 pub fn spawn(
    host: &Host,
    window: &str,
@@ -40,8 +25,7 @@ pub fn spawn(
        .ok()
        .filter(|p| p.is_trusted())
        .and_then(|p| ide_sdk::apply::terminal_activation(&p.root, &p.settings.effective(), &shell));
-    let key = host.owner_window(window).to_owned();
-    let info = host.terminals.spawn(options, key, host.window_sink(window), Box::new(move |chunk| on_output(chunk)))?;
+    let info = host.terminals.spawn(options, host.window_sink(window), Box::new(move |chunk| on_output(chunk)))?;
    if let Some(line) = activation {
        let _ = host.terminals.write(info.id, &format!(" {line}\r"));
    }
@@ -63,34 +47,3 @@ pub fn kill(host: &Host, id: TerminalId) -> IdeResult<()> {
 pub fn is_busy(host: &Host, id: TerminalId) -> IdeResult<bool> {
    host.terminals.is_busy(id)
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::HostConfig;
-    use ide_core::{NullSink, error::ErrorKind};
-    use std::sync::Arc;
-
-    #[tokio::test]
-    async fn image_size_limit_is_checked_before_storage() {
-        let root = tempfile::tempdir().unwrap();
-        let host = Host::new(HostConfig {
-            config_dir: root.path().join("config"),
-            data_dir: root.path().join("data"),
-            local_data_dir: root.path().join("data"),
-            languages: Arc::new(ide_language::LanguageRegistry::load(None).unwrap()),
-            syntax: Arc::default(),
-            sink_for: Box::new(|_| Arc::new(NullSink)),
-            owner: |window| window,
-            runtime: tokio::runtime::Handle::current(),
-            project_environment: false,
-        });
-        let id = TerminalId::next();
-        let error = store_image(&host, id, vec![0; MAX_IMAGE_BYTES + 1], "image/png".into()).await.unwrap_err();
-        assert_eq!(error.kind, ErrorKind::InvalidInput);
-        assert_eq!(error.message, "image is too large to paste (limit 20 MB)");
-        let error = store_image(&host, id, vec![0; MAX_IMAGE_BYTES], "image/png".into()).await.unwrap_err();
-        assert_eq!(error.message, "terminal session not found");
-        assert!(!host.data_dir.join("terminal-images").exists());
-    }
-}
@@ -1,533 +0,0 @@
-use ide_core::{IdeError, IdeResult};
-use std::path::Path;
-
-const LIFETIME: std::time::Duration = std::time::Duration::from_secs(24 * 60 * 60);
-const DIRECTORY: &str = "terminal-images";
-
-fn extension(mime: &str) -> IdeResult<&str> {
-    match mime {
-        "image/png" => Ok("png"),
-        "image/jpeg" => Ok("jpg"),
-        "image/gif" => Ok("gif"),
-        "image/webp" => Ok("webp"),
-        "image/bmp" => Ok("bmp"),
-        "image/svg+xml" => Ok("svg"),
-        "image/tiff" => Ok("tiff"),
-        "image/x-icon" => Ok("ico"),
-        "audio/wav" | "audio/x-wav" => Ok("wav"),
-        "audio/mpeg" => Ok("mp3"),
-        "audio/mp4" => Ok("m4a"),
-        "audio/ogg" => Ok("ogg"),
-        "audio/webm" | "video/webm" => Ok("webm"),
-        "audio/flac" => Ok("flac"),
-        "audio/aac" => Ok("aac"),
-        "video/mp4" => Ok("mp4"),
-        "video/ogg" => Ok("ogv"),
-        "video/quicktime" => Ok("mov"),
-        _ => Err(IdeError::invalid("unsupported clipboard media type")),
-    }
-}
-
-fn owned_name(name: &str) -> bool {
-    let name = name.strip_prefix(".partial-").unwrap_or(name);
-    let Some((id, ext)) = name.strip_prefix("image-").and_then(|s| s.split_once('.')) else { return false };
-    id.len() == 32
-        && id.bytes().all(|b| b.is_ascii_hexdigit() && !b.is_ascii_uppercase())
-        && matches!(
-            ext,
-            "png"
-                | "jpg"
-                | "gif"
-                | "webp"
-                | "bmp"
-                | "svg"
-                | "tiff"
-                | "ico"
-                | "wav"
-                | "mp3"
-                | "m4a"
-                | "ogg"
-                | "webm"
-                | "flac"
-                | "aac"
-                | "mp4"
-                | "ogv"
-                | "mov"
-        )
-}
-
-#[cfg(unix)]
-mod unix {
-    use super::*;
-    use rustix::fs::{self, AtFlags, Dir, Mode, OFlags};
-    use std::fs::File;
-    use std::io::{self, Write};
-    use std::os::unix::fs::MetadataExt;
-    use std::time::SystemTime;
-
-    fn open_directory(data_dir: &Path) -> io::Result<File> {
-        if !data_dir.is_absolute() {
-            return Err(io::Error::new(io::ErrorKind::InvalidInput, "data directory must be absolute"));
-        }
-        // The configured data directory and its ancestors are the host's trust boundary.
-        let parent =
-            fs::open(data_dir, OFlags::RDONLY | OFlags::DIRECTORY | OFlags::NOFOLLOW | OFlags::CLOEXEC, Mode::empty())?;
-        match fs::mkdirat(&parent, DIRECTORY, Mode::from_bits_truncate(0o700)) {
-            Ok(()) | Err(rustix::io::Errno::EXIST) => (),
-            Err(e) => return Err(e.into()),
-        }
-        let dir: File = fs::openat(
-            &parent,
-            DIRECTORY,
-            OFlags::RDONLY | OFlags::DIRECTORY | OFlags::NOFOLLOW | OFlags::CLOEXEC,
-            Mode::empty(),
-        )?
-        .into();
-        let meta = dir.metadata()?;
-        if meta.uid() != rustix::process::geteuid().as_raw() || meta.mode() & 0o7777 != 0o700 {
-            return Err(io::Error::new(
-                io::ErrorKind::PermissionDenied,
-                "terminal image directory is not private or owned by the current user",
-            ));
-        }
-        Ok(dir)
-    }
-
-    fn cleanup(dir: &File, now: SystemTime) -> io::Result<()> {
-        for entry in Dir::read_from(dir)? {
-            let entry = entry?;
-            let name = entry.file_name();
-            if !name.to_str().is_ok_and(owned_name) {
-                continue;
-            }
-            // Never follow symlinks; opening nonblocking avoids hanging on an unexpected FIFO.
-            let fd = match fs::openat(
-                dir,
-                name,
-                OFlags::RDONLY | OFlags::NOFOLLOW | OFlags::NONBLOCK | OFlags::CLOEXEC,
-                Mode::empty(),
-            ) {
-                Ok(fd) => fd,
-                Err(_) => continue,
-            };
-            let file = File::from(fd);
-            let meta = file.metadata()?;
-            if meta.is_file()
-                && meta.uid() == rustix::process::geteuid().as_raw()
-                && meta
-                    .modified()
-                    .ok()
-                    .and_then(|time| now.duration_since(time).ok())
-                    .is_some_and(|age| age >= LIFETIME)
-            {
-                match fs::unlinkat(dir, name, AtFlags::empty()) {
-                    Ok(()) | Err(rustix::io::Errno::NOENT) => (),
-                    Err(error) => return Err(error.into()),
-                }
-            }
-        }
-        Ok(())
-    }
-
-    fn store_with(
-        data_dir: &Path,
-        data: &[u8],
-        mime: &str,
-        now: SystemTime,
-        write: impl FnOnce(&mut File, &[u8]) -> io::Result<()>,
-    ) -> IdeResult<String> {
-        let ext = extension(mime)?;
-        let dir = open_directory(data_dir)?;
-        cleanup(&dir, now)?;
-        let name = format!("image-{}.{}", uuid::Uuid::new_v4().simple(), ext);
-        let temporary = format!(".partial-{name}");
-        let fd = fs::openat(
-            &dir,
-            temporary.as_str(),
-            OFlags::WRONLY | OFlags::CREATE | OFlags::EXCL | OFlags::NOFOLLOW | OFlags::CLOEXEC,
-            Mode::from_bits_truncate(0o600),
-        )
-        .map_err(io::Error::from)?;
-        let mut file = File::from(fd);
-        if let Err(error) = write(&mut file, data) {
-            let _ = fs::unlinkat(&dir, temporary.as_str(), AtFlags::empty());
-            return Err(error.into());
-        }
-        if let Err(error) = fs::linkat(&dir, temporary.as_str(), &dir, name.as_str(), AtFlags::empty()) {
-            let _ = fs::unlinkat(&dir, temporary.as_str(), AtFlags::empty());
-            return Err(io::Error::from(error).into());
-        }
-        let _ = fs::unlinkat(&dir, temporary.as_str(), AtFlags::empty());
-        Ok(data_dir.join(DIRECTORY).join(name).to_string_lossy().into_owned())
-    }
-
-    pub(in crate::ops::term) fn store(data_dir: &Path, data: &[u8], mime: &str) -> IdeResult<String> {
-        store_with(data_dir, data, mime, SystemTime::now(), |file, bytes| file.write_all(bytes))
-    }
-
-    #[cfg(test)]
-    mod tests {
-        use super::*;
-        use std::fs;
-        use std::os::unix::fs::{PermissionsExt, symlink};
-        use std::time::Duration;
-
-        #[test]
-        fn stores_bytes_with_private_modes_and_unpredictable_names() {
-            let root = tempfile::tempdir().unwrap();
-            let first = store(root.path(), b"image bytes", "image/png").unwrap();
-            let second = store(root.path(), b"other", "image/jpeg").unwrap();
-            assert_ne!(first, second);
-            assert_eq!(fs::read(&first).unwrap(), b"image bytes");
-            assert_eq!(fs::metadata(&first).unwrap().permissions().mode() & 0o777, 0o600);
-            assert_eq!(fs::metadata(root.path().join(DIRECTORY)).unwrap().permissions().mode() & 0o777, 0o700);
-            assert!(owned_name(Path::new(&first).file_name().unwrap().to_str().unwrap()));
-        }
-
-        #[test]
-        fn expiry_only_removes_owned_regular_files_at_boundary() {
-            let root = tempfile::tempdir().unwrap();
-            let dir = open_directory(root.path()).unwrap();
-            let path = root.path().join(DIRECTORY);
-            let now = SystemTime::now();
-            let names = [
-                "image-00000000000000000000000000000001.png",
-                "image-00000000000000000000000000000002.png",
-                "image-00000000000000000000000000000003.png",
-                "unrelated.png",
-            ];
-            for (name, time) in names.iter().zip([
-                now - LIFETIME,
-                now - LIFETIME + Duration::from_secs(1),
-                now + Duration::from_secs(1),
-                now - LIFETIME,
-            ]) {
-                let file = File::create(path.join(name)).unwrap();
-                file.set_times(fs::FileTimes::new().set_modified(time)).unwrap();
-            }
-            let link = path.join("image-00000000000000000000000000000004.png");
-            symlink(path.join(names[0]), &link).unwrap();
-            cleanup(&dir, now).unwrap();
-            assert!(!path.join(names[0]).exists());
-            for name in &names[1..] {
-                assert!(path.join(name).exists());
-            }
-            assert!(fs::symlink_metadata(link).unwrap().file_type().is_symlink());
-        }
-
-        #[test]
-        fn rejects_symlink_and_insecure_directory() {
-            let root = tempfile::tempdir().unwrap();
-            let outside = tempfile::tempdir().unwrap();
-            let target = root.path().join(DIRECTORY);
-            symlink(outside.path(), &target).unwrap();
-            assert!(store(root.path(), b"x", "image/png").is_err());
-            fs::remove_file(&target).unwrap();
-            fs::create_dir(&target).unwrap();
-            fs::set_permissions(&target, fs::Permissions::from_mode(0o755)).unwrap();
-            assert!(store(root.path(), b"x", "image/png").is_err());
-            assert_eq!(fs::read_dir(outside.path()).unwrap().count(), 0);
-        }
-
-        #[test]
-        fn failed_write_removes_partial_file() {
-            let root = tempfile::tempdir().unwrap();
-            let result = store_with(root.path(), b"partial", "image/png", SystemTime::now(), |file, bytes| {
-                file.write_all(bytes)?;
-                Err(io::Error::other("simulated failure"))
-            });
-            assert!(result.is_err());
-            assert_eq!(fs::read_dir(root.path().join(DIRECTORY)).unwrap().count(), 0);
-        }
-    }
-}
-
-#[cfg(windows)]
-mod windows {
-    use super::*;
-    use std::fs::{self, File, OpenOptions};
-    use std::io::{self, Write};
-    use std::os::windows::fs::{MetadataExt, OpenOptionsExt};
-    use std::time::SystemTime;
-    use windows_sys::Win32::Storage::FileSystem::{
-        FILE_ATTRIBUTE_REPARSE_POINT, FILE_FLAG_BACKUP_SEMANTICS, FILE_FLAG_OPEN_REPARSE_POINT, FILE_SHARE_READ,
-        FILE_SHARE_WRITE,
-    };
-
-    fn open_directory(path: &Path) -> io::Result<File> {
-        if !path.is_absolute() {
-            return Err(io::Error::new(io::ErrorKind::InvalidInput, "data directory must be absolute"));
-        }
-        let dir = OpenOptions::new()
-            .read(true)
-            .share_mode(FILE_SHARE_READ | FILE_SHARE_WRITE)
-            .custom_flags(FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT)
-            .open(path)?;
-        let meta = dir.metadata()?;
-        if !meta.is_dir() || meta.file_attributes() & FILE_ATTRIBUTE_REPARSE_POINT != 0 {
-            return Err(io::Error::new(
-                io::ErrorKind::PermissionDenied,
-                "terminal media directory must not be a reparse point",
-            ));
-        }
-        Ok(dir)
-    }
-
-    fn cleanup(path: &Path, now: SystemTime) -> io::Result<()> {
-        for entry in fs::read_dir(path)? {
-            let entry = entry?;
-            if !entry.file_name().to_str().is_some_and(owned_name) {
-                continue;
-            }
-            let file = match OpenOptions::new().read(true).custom_flags(FILE_FLAG_OPEN_REPARSE_POINT).open(entry.path())
-            {
-                Ok(file) => file,
-                Err(_) => continue,
-            };
-            let meta = file.metadata()?;
-            if meta.is_file()
-                && meta.file_attributes() & FILE_ATTRIBUTE_REPARSE_POINT == 0
-                && meta
-                    .modified()
-                    .ok()
-                    .and_then(|time| now.duration_since(time).ok())
-                    .is_some_and(|age| age >= LIFETIME)
-            {
-                match fs::remove_file(entry.path()) {
-                    Ok(()) => (),
-                    Err(error) if error.kind() == io::ErrorKind::NotFound => (),
-                    Err(error) => return Err(error),
-                }
-            }
-        }
-        Ok(())
-    }
-
-    fn store_with(
-        data_dir: &Path,
-        data: &[u8],
-        mime: &str,
-        now: SystemTime,
-        write: impl FnOnce(&mut File, &[u8]) -> io::Result<()>,
-    ) -> IdeResult<String> {
-        let ext = extension(mime)?;
-        let _parent = open_directory(data_dir)?;
-        let path = data_dir.join(DIRECTORY);
-        match fs::create_dir(&path) {
-            Ok(()) => (),
-            Err(error) if error.kind() == io::ErrorKind::AlreadyExists => (),
-            Err(error) => return Err(error.into()),
-        }
-        let _dir = open_directory(&path)?;
-        cleanup(&path, now)?;
-        let name = format!("image-{}.{}", uuid::Uuid::new_v4().simple(), ext);
-        let target = path.join(&name);
-        let temporary = path.join(format!(".partial-{name}"));
-        let mut file = OpenOptions::new().write(true).create_new(true).open(&temporary)?;
-        let result = write(&mut file, data);
-        drop(file);
-        if let Err(error) = result {
-            let _ = fs::remove_file(&temporary);
-            return Err(error.into());
-        }
-        if let Err(error) = fs::hard_link(&temporary, &target) {
-            let _ = fs::remove_file(&temporary);
-            return Err(error.into());
-        }
-        let _ = fs::remove_file(&temporary);
-        Ok(target.to_string_lossy().into_owned())
-    }
-
-    pub(in crate::ops::term) fn store(data_dir: &Path, data: &[u8], mime: &str) -> IdeResult<String> {
-        store_with(data_dir, data, mime, SystemTime::now(), |file, bytes| file.write_all(bytes))
-    }
-
-    #[cfg(test)]
-    mod tests {
-        use super::*;
-        use std::time::Duration;
-
-        fn junction(path: &Path, target: &Path) {
-            let output = std::process::Command::new("powershell.exe")
-                .args([
-                    "-NoProfile",
-                    "-NonInteractive",
-                    "-Command",
-                    "New-Item -ItemType Junction -Path $env:OPENIDEA_TEST_JUNCTION -Target $env:OPENIDEA_TEST_TARGET -ErrorAction Stop | Out-Null",
-                ])
-                .env("OPENIDEA_TEST_JUNCTION", path)
-                .env("OPENIDEA_TEST_TARGET", target)
-                .output()
-                .unwrap();
-            assert!(output.status.success(), "{}", String::from_utf8_lossy(&output.stderr));
-        }
-
-        #[test]
-        fn rejects_reparse_data_and_storage_directories() {
-            let root = tempfile::tempdir().unwrap();
-            let outside = tempfile::tempdir().unwrap();
-            let link = root.path().join("data");
-            junction(&link, outside.path());
-            assert!(store(&link, b"x", "image/png").is_err());
-            assert_eq!(fs::read_dir(outside.path()).unwrap().count(), 0);
-            fs::remove_dir(&link).unwrap();
-            let link = root.path().join(DIRECTORY);
-            junction(&link, outside.path());
-            assert!(store(root.path(), b"x", "image/png").is_err());
-            assert_eq!(fs::read_dir(outside.path()).unwrap().count(), 0);
-            fs::remove_dir(&link).unwrap();
-        }
-
-        #[test]
-        fn expiry_only_removes_owned_regular_media_at_boundary() {
-            let root = tempfile::tempdir().unwrap();
-            let outside = tempfile::tempdir().unwrap();
-            let path = root.path().join(DIRECTORY);
-            fs::create_dir(&path).unwrap();
-            let _dir = open_directory(&path).unwrap();
-            let now = SystemTime::now();
-            let names = [
-                "image-00000000000000000000000000000001.png",
-                "image-00000000000000000000000000000002.mp3",
-                ".partial-image-00000000000000000000000000000003.mp4",
-                "image-00000000000000000000000000000004.webm",
-                "image-00000000000000000000000000000005.wav",
-                "unrelated.png",
-                "image-00000000000000000000000000000006.exe",
-            ];
-            for (name, time) in names.iter().zip([
-                now - LIFETIME,
-                now - LIFETIME,
-                now - LIFETIME,
-                now - LIFETIME + Duration::from_secs(1),
-                now + Duration::from_secs(1),
-                now - LIFETIME,
-                now - LIFETIME,
-            ]) {
-                let file = File::create(path.join(name)).unwrap();
-                file.set_times(fs::FileTimes::new().set_modified(time)).unwrap();
-            }
-            let link = path.join("image-00000000000000000000000000000007.png");
-            junction(&link, outside.path());
-            let directory = path.join("image-00000000000000000000000000000008.png");
-            fs::create_dir(&directory).unwrap();
-            cleanup(&path, now).unwrap();
-            for name in &names[..3] {
-                assert!(!path.join(name).exists());
-            }
-            for name in &names[3..] {
-                assert!(path.join(name).exists());
-            }
-            assert!(directory.is_dir());
-            assert!(fs::symlink_metadata(&link).unwrap().file_attributes() & FILE_ATTRIBUTE_REPARSE_POINT != 0);
-            fs::remove_dir(link).unwrap();
-        }
-
-        #[test]
-        fn failed_write_removes_partial_file() {
-            let root = tempfile::tempdir().unwrap();
-            let result = store_with(root.path(), b"partial", "audio/ogg", SystemTime::now(), |file, bytes| {
-                file.write_all(bytes)?;
-                Err(io::Error::other("simulated failure"))
-            });
-            assert!(result.is_err());
-            assert_eq!(fs::read_dir(root.path().join(DIRECTORY)).unwrap().count(), 0);
-        }
-
-        #[test]
-        fn publication_preserves_existing_target() {
-            let root = tempfile::tempdir().unwrap();
-            let path = root.path().join(DIRECTORY);
-            let result = store_with(root.path(), b"new", "video/mp4", SystemTime::now(), |file, bytes| {
-                file.write_all(bytes)?;
-                let temporary = fs::read_dir(&path)?.next().unwrap()?.file_name();
-                let target = temporary.to_str().unwrap().strip_prefix(".partial-").unwrap();
-                fs::write(path.join(target), b"existing")
-            });
-            assert!(result.is_err());
-            let files: Vec<_> = fs::read_dir(&path).unwrap().map(|entry| entry.unwrap().path()).collect();
-            assert_eq!(files.len(), 1);
-            assert_eq!(fs::read(&files[0]).unwrap(), b"existing");
-            assert!(!files[0].file_name().unwrap().to_str().unwrap().starts_with(".partial-"));
-        }
-
-        #[test]
-        fn storage_handles_prevent_directory_replacement() {
-            let root = tempfile::tempdir().unwrap();
-            let path = root.path().join(DIRECTORY);
-            let result = store_with(root.path(), b"x", "image/png", SystemTime::now(), |file, bytes| {
-                assert!(fs::rename(&path, root.path().join("replaced")).is_err());
-                file.write_all(bytes)
-            });
-            assert_eq!(fs::read(result.unwrap()).unwrap(), b"x");
-        }
-    }
-}
-
-#[cfg(unix)]
-pub(super) use unix::store;
-
-#[cfg(windows)]
-pub(super) use windows::store;
-
-#[cfg(not(any(unix, windows)))]
-pub(super) fn store(_data_dir: &Path, _data: &[u8], _mime: &str) -> IdeResult<String> {
-    Err(IdeError::internal("private terminal image storage is unsupported on this platform"))
-}
-
-#[cfg(all(test, any(unix, windows)))]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn stores_supported_media_with_expected_extensions_and_unique_names() {
-        let root = tempfile::tempdir().unwrap();
-        let types = [
-            ("image/png", "png"),
-            ("image/jpeg", "jpg"),
-            ("image/gif", "gif"),
-            ("image/webp", "webp"),
-            ("image/bmp", "bmp"),
-            ("image/svg+xml", "svg"),
-            ("image/tiff", "tiff"),
-            ("image/x-icon", "ico"),
-            ("audio/wav", "wav"),
-            ("audio/x-wav", "wav"),
-            ("audio/mpeg", "mp3"),
-            ("audio/mp4", "m4a"),
-            ("audio/ogg", "ogg"),
-            ("audio/webm", "webm"),
-            ("audio/flac", "flac"),
-            ("audio/aac", "aac"),
-            ("video/mp4", "mp4"),
-            ("video/webm", "webm"),
-            ("video/ogg", "ogv"),
-            ("video/quicktime", "mov"),
-        ];
-        let mut paths = std::collections::HashSet::new();
-        for (mime, ext) in types {
-            let path = store(root.path(), mime.as_bytes(), mime).unwrap();
-            assert_eq!(std::fs::read(&path).unwrap(), mime.as_bytes());
-            assert_eq!(Path::new(&path).extension().unwrap(), ext);
-            assert!(owned_name(Path::new(&path).file_name().unwrap().to_str().unwrap()));
-            assert!(paths.insert(path));
-        }
-        assert_eq!(std::fs::read_dir(root.path().join(DIRECTORY)).unwrap().count(), types.len());
-    }
-
-    #[test]
-    fn rejects_unsupported_mime_before_creating_storage() {
-        let root = tempfile::tempdir().unwrap();
-        for mime in ["text/plain", "application/octet-stream", "image/unknown", "audio/unknown", "video/unknown", ""] {
-            let error = store(root.path(), b"x", mime).unwrap_err();
-            assert_eq!(error.kind, ide_core::error::ErrorKind::InvalidInput);
-            assert_eq!(error.message, "unsupported clipboard media type");
-        }
-        assert!(!root.path().join(DIRECTORY).exists());
-    }
-
-    #[test]
-    fn rejects_relative_data_directory() {
-        assert!(store(Path::new("relative-data"), b"x", "image/png").is_err());
-    }
-}
@@ -12,7 +12,7 @@ use std::path::PathBuf;
 /// The installer, reporting the executables chosen in the window's settings.
 fn tools(host: &Host, window: &str) -> IdeResult<Tools> {
    host.require_trust(window)?;
-    let data = host.local_data_dir.clone();
+    let data = host.data_dir.clone();
    let (settings, root) = match host.project(window) {
        Ok(project) => (project.settings.effective(), project.root.clone()),
        Err(_) => (host.global_settings.effective(), Default::default()),
@@ -104,7 +104,7 @@ pub async fn jdk_download_releases(
    vendor: String,
    request: RequestId,
 ) -> IdeResult<JdkReleases> {
-    let tools = Tools::new(&host.local_data_dir);
+    let tools = Tools::new(&host.data_dir);
    let cancel = host.begin_request(request);
    let result = tokio::task::spawn_blocking(move || tools.jdk_releases(&vendor, &cancel)).await.map_err(join_err);
    host.end_request(request);
@@ -113,7 +113,7 @@ pub async fn jdk_download_releases(

 /// Where Download JDK puts JDKs unless told otherwise.
 pub fn jdk_download_location(host: &Host, _window: &str) -> IdeResult<ide_core::IpcPath> {
-    Ok(ide_tools::jdk::jdks_dir(&host.local_data_dir).into())
+    Ok(ide_tools::jdk::jdks_dir(&host.data_dir).into())
 }

 /// Downloads the latest `vendor` JDK of Java `version` into `location` (default:
@@ -130,7 +130,7 @@ pub async fn jdk_download(
    request: RequestId,
    on_event: Channel<InstallEvent>,
 ) -> IdeResult<Sdk> {
-    let tools = Tools::new(&host.local_data_dir);
+    let tools = Tools::new(&host.data_dir);
    let location = location.filter(|p| !p.as_os_str().is_empty());
    let cancel = host.begin_request(request);
    let result = tokio::task::spawn_blocking(move || {
Author	SHA1	Message	Date
l0ng-ai	fe68d57aa2	chore(i18n): drop catalog entries no longer used in the source	2026-11-01 18:25:59 +08:00
l0ng-ai	d14a067ee1	Merge remote-tracking branch 'origin/main' into feat/java-idea-code-style # Conflicts: # src/platform/locales/text/zh.json	2026-11-01 18:23:46 +08:00
l0ng-ai	b3b4c835dd	fix(java): preserve manual formatter line breaks	2026-11-01 18:11:50 +08:00
l0ng-ai	c03085340d	feat(java): add selectable formatting profiles	2026-11-01 17:53:04 +08:00