chore(release): 0.48.0 — NO_PROXY, code intelligence, lifecycle round two

Headline themes:
- Network: full NO_PROXY support + per-host routing visible in /doctor
- Code intel: tree-sitter get_symbols/find_in_code + Java source/decompile + Perplexity/Exa search
- Lifecycle: gate mutations during checkpoints, preserve state across plan revisions
- Subagent: live byte progress + top-level explore/research/review
- Desktop: QQ sessions usable, custom fonts, lots of reliability fixes

See CHANGELOG for the full list.

.github/FUNDING.yml

@@ -1 +1,3 @@
 github: esengine
+custom:
+  - https://paypal.me/yuhuahui

.github/ISSUE_TEMPLATE/bug_report.md

@@ -4,6 +4,10 @@ about: Something is broken
 labels: bug
 ---
 
+> **Screen flicker, garbled output, leftover artifacts, cursor jumping?**
+> Use the **Display / rendering issue** template instead — it asks for the
+> terminal-specific info we need to diagnose those.
+
 **What happened**
 A clear and concise description.
 
@@ -14,10 +18,13 @@ What you expected to happen.
 Steps or minimal code that reproduces it.
 
 **Environment**
-- Reasonix version:
-- Node version:
-- OS:
-- DeepSeek model (e.g. `deepseek-chat`, `deepseek-reasoner`):
+- Reasonix version (`reasonix --version`):
+- Node version (`node --version`):
+- OS (Windows 11 / macOS 14 / Ubuntu 24.04 / …):
+- Shell (bash, zsh, fish, PowerShell 7, PowerShell 5.1, cmd, …):
+- Terminal app (Windows Terminal, iTerm2, Alacritty, kitty, WezTerm, **VSCode integrated**, **Cursor integrated**, Hyper, …):
+- DeepSeek model (e.g. `deepseek-v4-flash`, `deepseek-v4-pro`):
 
 **Logs / transcript**
-If using the CLI, attach the relevant chunk of `--transcript`.
+If using the CLI, attach the relevant chunk of `--transcript`, or run
+`reasonix doctor` and paste the output.

.github/ISSUE_TEMPLATE/display_issue.md

@@ -0,0 +1,109 @@
+---
+name: Display / rendering issue
+about: Screen flicker, garbled output, leftover artifacts, cursor jumping
+labels: bug, rendering
+---
+
+> Display problems almost always come from the **terminal emulator**, not
+> the shell. Please fill the terminal section carefully — `bash vs PowerShell`
+> tells us very little; `VSCode integrated terminal vs Windows Terminal`
+> tells us everything.
+
+**Symptom** (tick all that apply)
+- [ ] Whole screen flickers / flashes during streaming response
+- [ ] Lines tear or only half-redraw
+- [ ] Stale output left behind after a frame updates
+- [ ] Cursor jumps to wrong column or vanishes
+- [ ] Mojibake / wrong-width characters (e.g. `□`, half-width emoji)
+- [ ] Other (describe below)
+
+**When it happens**
+- [ ] During assistant streaming (token-by-token output)
+- [ ] When tool cards expand / collapse
+- [ ] During scroll-up / scrollback
+- [ ] On terminal resize
+- [ ] On launch / on quit
+- [ ] Other (describe below)
+
+**Terminal — the important part**
+
+Where exactly are you running `reasonix`?
+
+- [ ] **VSCode** integrated terminal — VSCode version: `?`
+- [ ] **Cursor** integrated terminal — Cursor version: `?`
+- [ ] **Windows Terminal** — version: `?`
+- [ ] **cmd.exe** (legacy console host)
+- [ ] **PowerShell ISE** (note: ISE doesn't support ANSI — most things will look broken)
+- [ ] **iTerm2** / **Terminal.app** / **Alacritty** / **kitty** / **WezTerm** / **Hyper**
+- [ ] tmux / screen / mosh — and inside which outer terminal? `?`
+- [ ] Other:
+
+> 💡 **How to find your VSCode / Cursor version**
+> `Help → About` (Windows/Linux) or `Code → About Visual Studio Code` (macOS).
+> Paste the whole panel — version + commit + Electron + xterm.js if shown.
+
+**Diagnostic dump — copy/paste output**
+
+Run **one** of the snippets below in the same terminal where you saw the
+issue, and paste the output here:
+
+<details><summary>PowerShell (Windows)</summary>
+
+```powershell
+reasonix --version; node --version
+$PSVersionTable.PSVersion.ToString()
+[System.Environment]::OSVersion.VersionString
+"TERM=$env:TERM"
+"TERM_PROGRAM=$env:TERM_PROGRAM"
+"TERM_PROGRAM_VERSION=$env:TERM_PROGRAM_VERSION"
+"COLORTERM=$env:COLORTERM"
+"WT_SESSION=$env:WT_SESSION"
+"VSCODE_INJECTION=$env:VSCODE_INJECTION"
+"WSL_DISTRO_NAME=$env:WSL_DISTRO_NAME"
+```
+
+</details>
+
+<details><summary>bash / zsh (macOS / Linux / WSL / Git Bash)</summary>
+
+```bash
+reasonix --version; node --version
+uname -a
+echo "TERM=$TERM"
+echo "TERM_PROGRAM=$TERM_PROGRAM"
+echo "TERM_PROGRAM_VERSION=$TERM_PROGRAM_VERSION"
+echo "COLORTERM=$COLORTERM"
+echo "WT_SESSION=$WT_SESSION"
+echo "VSCODE_INJECTION=$VSCODE_INJECTION"
+echo "WSL_DISTRO_NAME=$WSL_DISTRO_NAME"
+```
+
+</details>
+
+```
+<paste output here>
+```
+
+**VSCode / Cursor users only — terminal settings**
+
+Open Settings (`Ctrl+,`), search `terminal.integrated.gpuAcceleration`,
+report current value: `auto` / `on` / `canvas` / `off` — `?`
+
+Already tried any of:
+- [ ] Switching `gpuAcceleration` to a different value
+- [ ] Detaching the terminal (drag tab into its own window)
+- [ ] Running the same command in a non-VSCode terminal — did it still flicker? `yes / no`
+
+**Reproduction**
+
+Steps that reliably trigger it (commands run, files edited, was a tool
+streaming a long response, was the window being resized, …):
+
+1.
+2.
+3.
+
+**Screen recording (strongly preferred)**
+
+A 5–10s GIF or MP4 is worth 1000 words for rendering bugs. Drop it in
+this comment box — GitHub uploads attachments inline.

.github/issue-labeler.yml

@@ -0,0 +1,25 @@
+bug:
+  - '/\b(crash|crashed|crashes|panic|panicked|stack trace|stacktrace|traceback)\b/i'
+  - '/\b(broken|doesn''?t work|not working|stopped working|regression)\b/i'
+  - '/\b(throws? (an? )?error|uncaught|unhandled)\b/i'
+
+enhancement:
+  - '/\b(feature request|would (be nice|like|love)|please add|please support)\b/i'
+  - '/\b(add (a |the )?(flag|option|config|setting|switch)|allow (configuring|disabling|enabling))\b/i'
+  - '/\b(can (we|you|reasonix) (add|support)|proposal|propose adding)\b/i'
+
+documentation:
+  - '/\b(docs?\b|documentation|readme|getting started|tutorial|wiki|man page)\b/i'
+  - '/\b(missing (docs?|documentation)|undocumented)\b/i'
+
+question:
+  - '/\b(how (do|to|can) (i|we|you)|is it possible|is there a way|why does|why is)\b/i'
+  - '/\b(question:|q:)\s/i'
+
+dashboard:
+  - '/\b(dashboard|\/dashboard|web UI|web companion|browser)\b/i'
+  - '/\blocalhost:|127\.0\.0\.1/i'
+
+rendering:
+  - '/\b(flicker|flickering|render artifact|redraw|repaint|ghost row|ghosting|screen tear)\b/i'
+  - '/\b(TUI (glitch|artifact|garbled)|terminal (glitch|garbled|broken display))\b/i'

.github/workflows/ci.yml

@@ -8,11 +8,12 @@ on:
 
 jobs:
   build:
-    name: build (node ${{ matrix.node }})
-    runs-on: ubuntu-latest
+    name: build (${{ matrix.os }} · node ${{ matrix.node }})
+    runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-latest, windows-latest]
         node: ["22"]
     steps:
       - uses: actions/checkout@v4
@@ -45,9 +46,19 @@ jobs:
       # Smoke-test the bench harnesses themselves. --dry skips all LLM
       # calls, so this catches wiring regressions (task factories, CLI
       # parsing, file IO, checker determinism) without needing a
-      # DEEPSEEK_API_KEY in CI.
+      # DEEPSEEK_API_KEY in CI. RUNNER_TEMP is set on every GH Actions
+      # runner (POSIX + Windows) — beats hardcoding /tmp.
       - name: τ-bench harness dry-run
-        run: npx tsx benchmarks/tau-bench/runner.ts --dry --out /tmp/tau-dry.json
+        run: npx tsx benchmarks/tau-bench/runner.ts --dry --out "${{ runner.temp }}/tau-dry.json"
 
-      - name: Harvest-bench harness dry-run
-        run: npx tsx benchmarks/harvest/runner.ts --dry --out /tmp/harvest-dry.json
+      - name: Notify Discord on main failure
+        if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/main'
+        shell: bash
+        env:
+          WEBHOOK_URL: ${{ secrets.DISCORD_CI_WEBHOOK }}
+        run: |
+          test -n "$WEBHOOK_URL" || { echo "DISCORD_CI_WEBHOOK unset, skipping"; exit 0; }
+          RUN_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          curl -sS -X POST -H "Content-Type: application/json" \
+            -d "{\"content\":\"❌ CI failed on \`${{ github.ref_name }}\` (${{ matrix.os }}) — ${{ github.actor }}\n${RUN_URL}\"}" \
+            "$WEBHOOK_URL"

.github/workflows/issue-labeler.yml

@@ -0,0 +1,22 @@
+name: Issue auto-label
+
+on:
+  issues:
+    types: [opened, edited]
+
+permissions:
+  issues: write
+  contents: read
+
+jobs:
+  label:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: github/[email protected]
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          configuration-path: .github/issue-labeler.yml
+          enable-versioned-regex: 0
+          include-title: 1
+          include-body: 1
+          sync-labels: 0

.github/workflows/issue-similarity.yml

@@ -0,0 +1,20 @@
+name: Issue similarity check
+
+on:
+  issues:
+    types: [opened, edited]
+
+permissions:
+  issues: write
+
+jobs:
+  similarity:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions-cool/issues-similarity-analysis@v1
+        with:
+          filter-threshold: 0.7
+          title-excludes: ""
+          comment-title: "### Possibly related issues"
+          comment-body: "- #${number} · ${title}"
+          show-footer: false

.github/workflows/oosmetrics.yml

@@ -0,0 +1,17 @@
+name: oosmetrics Health Check
+
+on:
+  schedule:
+    - cron: "0 9 * * 1"
+  workflow_dispatch:
+
+permissions:
+  issues: write
+
+jobs:
+  report:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: oosmetrics/health-check-action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/publish-npm.yml

@@ -0,0 +1,66 @@
+name: Publish npm
+
+# Tag namespace: plain `v<semver>` triggers npm publish for the
+# reasonix CLI package. Desktop Tauri releases use `desktop-v*`
+# (see release.yml) — pushing one of those never reaches this
+# workflow, so the two release tracks are fully decoupled.
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Tag to publish (e.g. v0.47.0). Required when running manually."
+        required: true
+        type: string
+
+permissions:
+  contents: read
+  # `id-token: write` is the npm provenance handshake — harmless if we
+  # don't enable provenance, required if we ever do.
+  id-token: write
+
+jobs:
+  publish:
+    name: publish to npm
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          # workflow_dispatch lets a maintainer publish an older tag
+          # without re-pushing it; tag pushes already point HEAD at the
+          # right ref so the fallback is a no-op.
+          ref: ${{ github.event.inputs.tag || github.ref }}
+
+      - name: Setup Node 22
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: npm
+          registry-url: https://registry.npmjs.org/
+
+      # Fail-fast if someone tags without bumping package.json. npm itself
+      # would reject the duplicate publish, but the error there is
+      # opaque ("403 You cannot publish over the previously published
+      # versions") and CI is the place to catch it cleanly.
+      - name: Verify tag matches package.json version
+        shell: bash
+        run: |
+          tag="${{ github.event.inputs.tag || github.ref_name }}"
+          tag_version="${tag#v}"
+          pkg_version=$(node -p "require('./package.json').version")
+          if [ "$tag_version" != "$pkg_version" ]; then
+            echo "::error::tag $tag (version $tag_version) does not match package.json version $pkg_version"
+            exit 1
+          fi
+          echo "tag $tag matches package.json $pkg_version"
+
+      - name: Install dependencies
+        run: npm ci
+
+      # `npm publish` runs the prepublishOnly hook (lint + typecheck +
+      # test + build) automatically, so no separate verify step here.
+      - name: Publish to npm
+        run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/release-mirror.yml

@@ -0,0 +1,103 @@
+name: Release mirror
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Tag to mirror (e.g. v0.42.0)"
+        required: true
+        type: string
+
+permissions:
+  contents: read
+
+jobs:
+  mirror:
+    name: Mirror release assets to R2
+    runs-on: ubuntu-latest
+    env:
+      HAS_R2: ${{ secrets.R2_ACCESS_KEY_ID != '' && secrets.R2_SECRET_ACCESS_KEY != '' && secrets.R2_ACCOUNT_ID != '' && secrets.R2_BUCKET != '' }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Resolve tag
+        id: tag
+        shell: bash
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            echo "name=${{ inputs.tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "name=${{ github.event.release.tag_name }}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Download release assets from GitHub
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          mkdir -p assets
+          gh release download "${{ steps.tag.outputs.name }}" \
+            -R "${{ github.repository }}" \
+            -D assets
+
+      # Rewrite bundle URLs inside latest.json (Tauri updater manifest)
+      # so the desktop pulls bundles from R2, not GitHub. Without this the
+      # updater fetches the small JSON from R2 but still downloads the
+      # heavy installer from github.com — defeating the mirror.
+      # No-op when latest.json is absent (CLI-only releases).
+      - name: Rewrite latest.json URLs → R2
+        if: env.HAS_R2 == 'true'
+        env:
+          R2_PUBLIC_BASE: https://pub-147fb53b9c1e4bbf891a257968619ea7.r2.dev
+          TAG: ${{ steps.tag.outputs.name }}
+        run: |
+          file=assets/latest.json
+          if [ ! -f "$file" ]; then
+            echo "no latest.json in release — skipping rewrite"
+            exit 0
+          fi
+          # GitHub URLs look like:
+          #   https://github.com/<owner>/<repo>/releases/download/<TAG>/<file>
+          # Rewrite to:
+          #   <R2_PUBLIC_BASE>/<TAG>/<file>
+          jq --arg base "$R2_PUBLIC_BASE" --arg tag "$TAG" '
+            .platforms |= with_entries(
+              .value.url |= sub("https://github.com/[^/]+/[^/]+/releases/download/[^/]+/"; "\($base)/\($tag)/")
+            )
+          ' "$file" > "$file.new"
+          mv "$file.new" "$file"
+          echo "rewrote latest.json:"
+          cat "$file"
+
+      - name: Configure AWS CLI for R2
+        if: env.HAS_R2 == 'true'
+        run: |
+          aws configure set aws_access_key_id "${{ secrets.R2_ACCESS_KEY_ID }}"
+          aws configure set aws_secret_access_key "${{ secrets.R2_SECRET_ACCESS_KEY }}"
+          aws configure set region auto
+
+      - name: Mirror to R2
+        if: env.HAS_R2 == 'true'
+        env:
+          R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}
+          R2_BUCKET: ${{ secrets.R2_BUCKET }}
+          TAG: ${{ steps.tag.outputs.name }}
+        run: |
+          ENDPOINT="https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com"
+          aws s3 cp assets/ "s3://${R2_BUCKET}/${TAG}/" \
+            --recursive \
+            --endpoint-url "$ENDPOINT"
+          aws s3 cp assets/ "s3://${R2_BUCKET}/latest/" \
+            --recursive \
+            --endpoint-url "$ENDPOINT"
+
+      - name: Summary
+        if: always()
+        run: |
+          {
+            echo "## Mirror result"
+            echo ""
+            echo "- Tag: \`${{ steps.tag.outputs.name }}\`"
+            echo "- R2: ${{ env.HAS_R2 == 'true' && '✓ mirrored' || 'skipped (no R2 secrets)' }}"
+          } >> "$GITHUB_STEP_SUMMARY"

.github/workflows/release.yml

@@ -0,0 +1,174 @@
+name: Release desktop
+
+# Tag namespace: `desktop-v<semver>` triggers desktop Tauri bundles.
+# Plain `v<semver>` tags are reserved for the npm CLI release (see
+# publish-npm.yml) — they intentionally do NOT trigger this workflow.
+# Bump the desktop with: `git tag desktop-vX.Y.Z && git push origin desktop-vX.Y.Z`.
+on:
+  push:
+    tags: ["desktop-v*"]
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Tag to publish (e.g. desktop-v0.47.0). Required when running manually."
+        required: true
+        type: string
+
+permissions:
+  contents: write
+
+jobs:
+  bundle:
+    name: bundle (${{ matrix.target.label }})
+    strategy:
+      fail-fast: false
+      matrix:
+        target:
+          # `rust` is the comma-separated list installed by dtolnay/rust-toolchain;
+          # `tauri` is what we pass to `cargo tauri build --target`. They differ
+          # only for the universal Mac shard, which produces one fat binary from
+          # two real Rust targets via lipo. Intel-only macos-13 runner is dropped
+          # — GH retired most of that pool, queue waits ran to hours.
+          - { os: ubuntu-22.04, label: "linux-x64", rust: "x86_64-unknown-linux-gnu", tauri: "x86_64-unknown-linux-gnu" }
+          - { os: macos-14, label: "macos-universal", rust: "aarch64-apple-darwin,x86_64-apple-darwin", tauri: "universal-apple-darwin" }
+          - { os: windows-latest, label: "windows-x64", rust: "x86_64-pc-windows-msvc", tauri: "x86_64-pc-windows-msvc" }
+    runs-on: ${{ matrix.target.os }}
+    # secrets.* isn't accessible from step-level if:, so expose presence as a
+    # job-level env. Treat "true"/"false" strings as booleans downstream.
+    env:
+      HAS_APPLE_CERT: ${{ secrets.APPLE_CERTIFICATE != '' }}
+      HAS_WIN_CERT: ${{ secrets.WINDOWS_CERTIFICATE != '' }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Resolve tag
+        id: tag
+        shell: bash
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            echo "name=${{ inputs.tag }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "name=${GITHUB_REF_NAME}" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Setup Node 22
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: npm
+
+      - name: Setup Rust (${{ matrix.target.rust }})
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target.rust }}
+
+      - name: Rust cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          workspaces: desktop/src-tauri -> target
+          key: ${{ matrix.target.label }}
+
+      - name: Install Linux bundle deps
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            libwebkit2gtk-4.1-dev \
+            libgtk-3-dev \
+            libayatana-appindicator3-dev \
+            librsvg2-dev \
+            patchelf
+
+      - name: Install root deps
+        run: npm ci
+
+      - name: Sync desktop version from tag
+        run: node scripts/sync-desktop-version.mjs "${{ steps.tag.outputs.name }}"
+
+      - name: Build CLI bundle (dist/)
+        run: npm run build
+
+      - name: Install desktop deps
+        working-directory: desktop
+        run: npm ci
+
+      - name: Download bundled Node runtime
+        working-directory: desktop
+        run: npm run bundle:node
+
+      - name: Verify bundled Node is universal (macOS)
+        if: startsWith(matrix.target.os, 'macos-')
+        working-directory: desktop
+        run: |
+          archs=$(lipo -archs src-tauri/binaries/node)
+          echo "node archs: $archs"
+          echo "$archs" | grep -q "arm64"
+          echo "$archs" | grep -q "x86_64"
+
+      - name: Build & verify desktop frontend
+        working-directory: desktop
+        shell: bash
+        run: |
+          npm run build
+          test -f dist/index.html
+          ls dist/assets/*.js >/dev/null
+
+      # tauri-action signs OS bundles whenever the corresponding env vars are
+      # defined — including when they're defined to the empty string, which is
+      # what `secrets.UNSET` evaluates to. Gate each signing block on its
+      # certificate being non-empty so unsigned prereleases don't trip
+      # `security import` / `signtool` on missing certs.
+      - name: Build Tauri bundle (unsigned)
+        if: >-
+          (matrix.target.os != 'windows-latest' || env.HAS_WIN_CERT != 'true')
+          && (!startsWith(matrix.target.os, 'macos-') || env.HAS_APPLE_CERT != 'true')
+        uses: tauri-apps/tauri-action@v0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
+          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
+        with:
+          projectPath: desktop
+          tagName: ${{ steps.tag.outputs.name }}
+          releaseName: Reasonix ${{ steps.tag.outputs.name }}
+          releaseDraft: true
+          prerelease: false
+          args: --target ${{ matrix.target.tauri }}
+
+      - name: Build Tauri bundle (Windows, signed)
+        if: matrix.target.os == 'windows-latest' && env.HAS_WIN_CERT == 'true'
+        uses: tauri-apps/tauri-action@v0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
+          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
+          WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
+          WINDOWS_CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_CERTIFICATE_PASSWORD }}
+        with:
+          projectPath: desktop
+          tagName: ${{ steps.tag.outputs.name }}
+          releaseName: Reasonix ${{ steps.tag.outputs.name }}
+          releaseDraft: true
+          prerelease: false
+          args: --target ${{ matrix.target.tauri }}
+
+      - name: Build Tauri bundle (macOS, signed + notarized)
+        if: startsWith(matrix.target.os, 'macos-') && env.HAS_APPLE_CERT == 'true'
+        uses: tauri-apps/tauri-action@v0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
+          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
+          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
+          APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
+          APPLE_SIGNING_IDENTITY: ${{ secrets.APPLE_SIGNING_IDENTITY }}
+          APPLE_ID: ${{ secrets.APPLE_ID }}
+          APPLE_PASSWORD: ${{ secrets.APPLE_PASSWORD }}
+          APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+        with:
+          projectPath: desktop
+          tagName: ${{ steps.tag.outputs.name }}
+          releaseName: Reasonix ${{ steps.tag.outputs.name }}
+          releaseDraft: true
+          prerelease: false
+          args: --target ${{ matrix.target.tauri }}

.gitignore

@@ -33,4 +33,18 @@ sessions/
 .reasonix/semantic-skip
 # Scratch entry regenerated each time scripts/bundle-codemirror.mjs runs.
 scripts/.cm-entry.mjs
+# Personal bun lockfile — project uses npm officially.
+bun.lock
 
+# Local portable Node/npm used for development on machines without npm.
+.tools/
+.npm-cache/
+
+# Tauri desktop shell build artifacts.
+desktop/src-tauri/target/
+desktop/src-tauri/gen/
+desktop/src-tauri/binaries/
+
+# Design mock-up reference (local, not part of repo)
+.design-ref/
+*.cpuprofile

README.md

@@ -7,22 +7,33 @@
    · 
   <a href="./README.zh-CN.md">简体中文</a>
   &nbsp;·&nbsp;
-  <a href="https://esengine.github.io/reasonix/">Website</a>
+  <a href="https://esengine.github.io/DeepSeek-Reasonix/">Website</a>
+  &nbsp;·&nbsp;
+  <a href="https://esengine.github.io/DeepSeek-Reasonix/configuration.html">Guide</a>
   &nbsp;·&nbsp;
   <a href="./docs/ARCHITECTURE.md">Architecture</a>
   &nbsp;·&nbsp;
   <a href="./benchmarks/">Benchmarks</a>
+  &nbsp;·&nbsp;
+  <strong><a href="https://discord.gg/XF78rEME2D">Discord</a></strong>
 </p>
 
 <p align="center">
-  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/v/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="npm version"/></a>
-  <a href="https://github.com/esengine/reasonix/actions/workflows/ci.yml"><img src="https://img.shields.io/github/actions/workflow/status/esengine/reasonix/ci.yml?style=flat-square&label=ci&color=0d1117&labelColor=161b22" alt="CI"/></a>
-  <a href="./LICENSE"><img src="https://img.shields.io/npm/l/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="license"/></a>
-  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/dm/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="downloads"/></a>
-  <a href="./package.json"><img src="https://img.shields.io/node/v/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="node"/></a>
-  <a href="https://github.com/esengine/reasonix/stargazers"><img src="https://img.shields.io/github/stars/esengine/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22&logo=github" alt="GitHub stars"/></a>
-  <a href="https://github.com/esengine/reasonix/graphs/contributors"><img src="https://img.shields.io/github/contributors/esengine/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22&logo=github" alt="contributors"/></a>
-  <a href="https://github.com/esengine/reasonix/discussions"><img src="https://img.shields.io/github/discussions/esengine/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22&logo=github" alt="Discussions"/></a>
+  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/v/reasonix.svg?style=flat-square&color=cb3837&labelColor=161b22&logo=npm&logoColor=white" alt="npm version"/></a>
+  <a href="https://github.com/esengine/reasonix/actions/workflows/ci.yml"><img src="https://img.shields.io/github/actions/workflow/status/esengine/reasonix/ci.yml?style=flat-square&label=ci&labelColor=161b22&logo=githubactions&logoColor=white" alt="CI"/></a>
+  <a href="./LICENSE"><img src="https://img.shields.io/npm/l/reasonix.svg?style=flat-square&color=8b949e&labelColor=161b22" alt="license"/></a>
+  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/dm/reasonix.svg?style=flat-square&color=3fb950&labelColor=161b22&label=downloads" alt="downloads"/></a>
+  <a href="./package.json"><img src="https://img.shields.io/node/v/reasonix.svg?style=flat-square&color=5fa04e&labelColor=161b22&logo=nodedotjs&logoColor=white" alt="node"/></a>
+  <a href="https://github.com/esengine/reasonix/stargazers"><img src="https://img.shields.io/github/stars/esengine/reasonix.svg?style=flat-square&color=dbab09&labelColor=161b22&logo=github&logoColor=white" alt="GitHub stars"/></a>
+  <a href="https://github.com/esengine/reasonix/graphs/contributors"><img src="https://img.shields.io/github/contributors/esengine/reasonix.svg?style=flat-square&color=bc8cff&labelColor=161b22&logo=github&logoColor=white" alt="contributors"/></a>
+  <a href="https://github.com/esengine/reasonix/discussions"><img src="https://img.shields.io/github/discussions/esengine/reasonix.svg?style=flat-square&color=58a6ff&labelColor=161b22&logo=github&logoColor=white" alt="Discussions"/></a>
+  <a href="https://discord.gg/XF78rEME2D"><img src="https://img.shields.io/badge/discord-join-5865F2.svg?style=flat-square&labelColor=161b22&logo=discord&logoColor=white" alt="Discord"/></a>
+</p>
+
+<p align="center">
+  <a href="https://oosmetrics.com/repo/esengine/reasonix"><img src="https://api.oosmetrics.com/api/v1/badge/achievement/9e931d80-2050-4b10-902e-44970cc133ad.svg" alt="oosmetrics — Top 2 in Agents by velocity"/></a>
+  <a href="https://oosmetrics.com/repo/esengine/reasonix"><img src="https://api.oosmetrics.com/api/v1/badge/achievement/556d94b3-61b7-486b-baf2-888b9327deab.svg" alt="oosmetrics — Top 3 in LLMs by velocity"/></a>
+  <a href="https://oosmetrics.com/repo/esengine/reasonix"><img src="https://api.oosmetrics.com/api/v1/badge/achievement/0f457d4c-efca-4d15-ad2b-139691ff342c.svg" alt="oosmetrics — Top 3 in CLI by velocity"/></a>
 </p>
 
 <br/>
@@ -41,30 +52,136 @@
 > [!TIP]
 > **Cache stability isn't a feature you turn on; it's an invariant the loop is designed around.** That's the whole reason Reasonix is DeepSeek-only — every layer is tuned to the byte-stable prefix-cache mechanic.
 
+> [!NOTE]
+> **Real user, single day (2026-05-01):** 435M input tokens, **99.82% cache hit**, ~$12 instead of the ~$61 the same workload would cost with no cache on `v4-flash` — see the [case study](./benchmarks/real-world-cache/README.md). DeepSeek provides the cacheable bytes; the four mechanisms in [Pillar 1](./docs/ARCHITECTURE.md#pillar-1--cache-first-loop) are how Reasonix keeps them cacheable across long sessions.
+
+> [!IMPORTANT]
+> **Community · 加入社区** — bilingual Discord with channels for setup help (`#help` / `#求助`), workflow showcases, feature ideas, and contributor-only PR coordination. Verify your GitHub in-server to get the **Contributor** role automatically. → **<https://discord.gg/XF78rEME2D>**
+
 <br/>
 
 ## Install
 
-```bash
-cd my-project
-npx reasonix code   # paste a DeepSeek API key on first run; persists after
-```
+Requires Node ≥ 22. Works on macOS · Linux · Windows (PowerShell · Git Bash · Windows Terminal).
 
-Requires Node ≥ 22. Tested on macOS · Linux · Windows (PowerShell · Git Bash · Windows Terminal). Get a [DeepSeek API key →](https://platform.deepseek.com/api_keys) · `reasonix code --help` for flags.
+Install Reasonix globally if you want the `reasonix` command available on your `PATH`:
+
+~~~bash
+npm install -g reasonix
+reasonix code my-project   # paste a DeepSeek API key on first run; persists after
+~~~
+
+Or run it once without installing globally:
+
+~~~bash
+cd my-project
+npx reasonix code          # always uses the latest package by default
+~~~
+
+Grab a [DeepSeek API key →](https://platform.deepseek.com/api_keys) · `reasonix code --help` for flags.
+
+If you use Reasonix daily, global install is the simplest path. If you just want to try it, use `npx`.
+
+Bare `reasonix` (no subcommand) launches `code` in the current directory — typing `reasonix` and `reasonix code` are equivalent.
+
+| Command | When |
+|---|---|
+| `reasonix` / `reasonix code [dir]` | The coding agent. **Start here.** |
+| `reasonix chat` | Plain chat — no filesystem or shell tools. |
+| `reasonix run "task"` | One-shot, streams to stdout. Good for pipes. |
+| `reasonix doctor` | Health check: Node, API key, MCP wiring. |
+| `reasonix update` | Upgrade Reasonix itself. |
+
+Other subcommands (`replay` · `diff` · `events` · `stats` · `index` · `mcp` · `prune-sessions`) are in `reasonix --help` and the [CLI reference](https://esengine.github.io/DeepSeek-Reasonix/#cli).
+
+### QQ channel
+
+QQ can extend an existing `chat`, `code`, or desktop session as a remote channel. It is part of the current session flow, not a separate runtime mode.
+
+- CLI: start a session, then run `/qq connect`
+- Desktop: open `Settings -> General -> QQ Channel`
+
+Once connected, QQ messages can enter the current session, assistant replies route back to QQ, and follow-up interactions can continue remotely.
+
+For full setup, desktop quick start, and troubleshooting, see [QQ channel setup](./docs/qq-connect.md).
+
+### Desktop client (prerelease)
+
+A native Tauri client for users who want a GUI over the same loop. Multi-tab, the right-panel shows files the agent has read or edited this session, the same cost / cache / token meters live at the bottom. Same DeepSeek API key, same `~/.reasonix` config — the desktop bundles its own Node runtime, no separate `npm install` step.
+
+Download platform installers from [GitHub Releases](https://github.com/esengine/DeepSeek-Reasonix/releases). The desktop ships as a **prerelease**: the loop and protocol are the same as the CLI, but the UI is still being polished and the installers aren't code-signed yet.
+
+- **macOS** — first launch hits Gatekeeper. One-time fix: `xattr -dr com.apple.quarantine /Applications/Reasonix.app` (or right-click → Open → confirm).
+- **Windows** — SmartScreen warns "Unknown publisher". Click **More info → Run anyway**.
+- **Linux** — `.deb` and `.AppImage` ship plain, no extra step.
+
+The CLI remains the canonical surface. Anything that lands in the CLI is also available from the desktop's composer.
+
+<details>
+<summary><strong>Working in another folder · chat vs. code · author a skill</strong></summary>
+
+**Working in a different folder.** Reasonix scopes filesystem tools to the launch directory; pass `--dir` to retarget. Mid-session switching isn't supported by design (memory paths would tangle with stale roots) — quit and relaunch.
+
+~~~bash
+npx reasonix code --dir /path/to/project
+~~~
+
+**Picking `chat` vs `code`.** `code` is the default and the only mode with filesystem / shell tools and SEARCH/REPLACE review. `chat` is the lighter, tools-off shell — reach for it when you want a thinking partner with MCP attached but no disk access.
+
+| What you get | `code` | `chat` |
+|---|---|---|
+| Filesystem tools + `edit_file` | ✓ | — |
+| SEARCH/REPLACE → `/apply` review | ✓ | — |
+| Shell tool (gated) | ✓ | — |
+| Plan mode · `/todo` · `/skill new` · `/mcp add` | ✓ | — |
+| Memory (`remember` / `recall_memory`) | project + global | global only |
+| MCP servers from config · web search · `ask_choice` | ✓ | ✓ |
+| Coding system prompt | ✓ | generic |
+| Session scope | per-directory | shared default |
+
+**Author your first skill.** No remote registry — write them directly. Edit the file (`description:` frontmatter + body), then `/skill list`. Add `runAs: subagent` to spawn an isolated subagent loop instead of inlining the body.
+
+~~~bash
+/skill new my-skill              # <project>/.reasonix/skills/my-skill.md
+/skill new my-skill --global     # ~/.reasonix/skills for cross-project use
+~~~
+
+**Claude-format skills also load.** `<project>/.claude/skills/<name>/SKILL.md` and `~/.claude/skills/` are read alongside Reasonix's native paths, so tooling that emits Claude-format skills works out of the box. Example — drop OpenSpec workflows in without an upstream adapter:
+
+~~~bash
+npx openspec init --tools claude    # writes .claude/skills/openspec-*/SKILL.md
+/skill openspec-propose <task>      # then invoke from Reasonix
+~~~
+
+</details>
+
+<br/>
+
+## Configuration
+
+One JSON file at `~/.reasonix/config.json` plus per-project overrides under `<project>/.reasonix/`. The full bilingual reference — every key, every slash command, the on-disk shape of skills/memory/hooks — lives at:
+
+> 📘 **[Configuration Guide](https://esengine.github.io/DeepSeek-Reasonix/configuration.html)** · [中文](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh)
+
+| Topic | Quick read |
+|---|---|
+| [MCP servers](https://esengine.github.io/DeepSeek-Reasonix/configuration.html#mcp) | stdio · SSE · Streamable HTTP. One spec format works for both `config.json` and `--mcp`. |
+| [Skills](https://esengine.github.io/DeepSeek-Reasonix/configuration.html#skills) | Markdown playbooks the model can invoke. `inline` or `subagent` mode. |
+| [Memory](https://esengine.github.io/DeepSeek-Reasonix/configuration.html#memory) | User-private knowledge pinned into the prefix. `user` / `feedback` / `project` / `reference` types. |
+| [Hooks](https://esengine.github.io/DeepSeek-Reasonix/configuration.html#hooks) | Shell commands on lifecycle events. `PreToolUse` (gating) · `PostToolUse` · `UserPromptSubmit` · `Stop`. |
+| [Permissions](https://esengine.github.io/DeepSeek-Reasonix/configuration.html#permissions) | Per-workspace shell allowlist. Exact-prefix match. |
+| [Web search](https://esengine.github.io/DeepSeek-Reasonix/configuration.html#search) | Mojeek by default; switch to self-hosted SearXNG or Metaso with `/search-engine`. |
+| [Semantic index](https://esengine.github.io/DeepSeek-Reasonix/configuration.html#index) | `reasonix index` — local Ollama or any OpenAI-compatible embedding endpoint. |
 
 <br/>
 
 ## What makes Reasonix different
 
-The loop is organized around four pillars. Each one solves a problem generic agent frameworks don't even see — because they were designed for a different cache mechanic.
-
-<p align="center">
-  <a href="./docs/ARCHITECTURE.md"><img src="docs/assets/pillars.svg" alt="Reasonix four pillars — Cache-first loop, R1 thought harvesting, Tool-call repair, Cost control" width="880"/></a>
-</p>
+The loop is organized around three pillars. Each one solves a problem generic agent frameworks don't even see — because they were designed for a different cache mechanic.
 
 <sub align="center">
 
-Click any card to read the full architecture writeup → [Pillar 1](./docs/ARCHITECTURE.md#pillar-1--cache-first-loop) · [Pillar 2](./docs/ARCHITECTURE.md#pillar-2--r1-thought-harvesting-opt-in) · [Pillar 3](./docs/ARCHITECTURE.md#pillar-3--tool-call-repair) · [Pillar 4](./docs/ARCHITECTURE.md#pillar-4--cost-control-v06)
+Click through to the full architecture writeup → [Pillar 1 — Cache-first loop](./docs/ARCHITECTURE.md#pillar-1--cache-first-loop) · [Pillar 2 — Tool-call repair](./docs/ARCHITECTURE.md#pillar-2--tool-call-repair) · [Pillar 3 — Cost control](./docs/ARCHITECTURE.md#pillar-3--cost-control-v06)
 
 </sub>
 
@@ -87,8 +204,10 @@ Click any card to read the full architecture writeup → [Pillar 1](./docs/ARCHI
 | Cost profile                      | **low per task** | premium           | subscription + use  | varies             |
 | DeepSeek prefix-cache             | **engineered**   | not applicable    | not applicable      | incidental         |
 | Embedded web dashboard            | yes              | —                 | n/a (IDE)           | —                  |
+| Configurable web search engine    | `/search-engine` | —             | —                   | —                  |
 | Persistent per-workspace sessions | yes              | partial           | n/a                 | —                  |
 | Plan mode · MCP · hooks · skills  | yes              | yes               | yes                 | partial            |
+| Web search (Mojeek + SearXNG + Metaso)   | yes              | yes               | yes                 | yes                |
 | Open community development        | yes              | —                 | —                   | yes                |
 
 For live cache-hit rates, costs, and methodology, see [`benchmarks/`](./benchmarks/) — the numbers move with model pricing, so they live with the harness, not in the README.
@@ -97,9 +216,11 @@ For live cache-hit rates, costs, and methodology, see [`benchmarks/`](./benchmar
 
 ## Documentation
 
-- [**Architecture**](./docs/ARCHITECTURE.md) — the four pillars, cache-first loop, harvesting, scaffolds
+- [**Architecture**](./docs/ARCHITECTURE.md) — three pillars: cache-first loop, tool-call repair, cost control
+- [**CLI Reference**](./docs/CLI-REFERENCE.md) — every shell subcommand, every slash command, every keybinding
+- [**QQ channel setup**](./docs/qq-connect.md) — CLI first-connect flow, desktop entry, and QQ Open Platform credentials
 - [**Benchmarks**](./benchmarks/) — τ-bench-lite harness, transcripts, cost methodology
-- [**Website**](https://esengine.github.io/reasonix/) — getting started, dashboard mockup, TUI mockup
+- [**Website**](https://esengine.github.io/DeepSeek-Reasonix/) — getting started, dashboard mockup, TUI mockup
 - [**Contributing**](./CONTRIBUTING.md) — comment policy, error-handling rules, library-over-hand-rolled
 - [**Code of Conduct**](./CODE_OF_CONDUCT.md) · [**Security policy**](./SECURITY.md)
 
@@ -108,14 +229,14 @@ For live cache-hit rates, costs, and methodology, see [`benchmarks/`](./benchmar
 ## Community
 
 > [!NOTE]
-> Reasonix is open source and community-developed. The contributors wall below isn't decoration — every avatar is a real PR that shipped.
+> Reasonix is open source and community-developed. Every avatar in the Acknowledgments wall at the bottom of this file is a real PR that shipped.
 
 Scoped starter tickets — each with background, code pointers, acceptance criteria, and hints — live under the [`good first issue`](https://github.com/esengine/reasonix/labels/good%20first%20issue) label. Pick anything open.
 
 **Open Discussions — opinions wanted:**
 
 - [#20 · CLI / TUI design](https://github.com/esengine/reasonix/discussions/20) — what's broken, what's missing, what would you change?
-- [#21 · Dashboard design](https://github.com/esengine/reasonix/discussions/21) — react against the [proposed mockup](https://esengine.github.io/reasonix/design/agent-dashboard.html)
+- [#21 · Dashboard design](https://github.com/esengine/reasonix/discussions/21) — react against the [proposed mockup](https://esengine.github.io/DeepSeek-Reasonix/design/agent-dashboard.html)
 - [#22 · Future feature wishlist](https://github.com/esengine/reasonix/discussions/22) — what would you build into Reasonix next?
 
 **Already using Reasonix and willing to help others discover it?** Publish blog posts, articles, screenshots, talks, or videos to [**Show and tell**](https://github.com/esengine/reasonix/discussions/categories/show-and-tell). The project has no marketing budget — community word of mouth is how new users find it. Sustained advocates earn the badge below, displayed next to the contributors wall once awarded:
@@ -128,12 +249,6 @@ Scoped starter tickets — each with background, code pointers, acceptance crite
 
 **Before your first PR**: read [`CONTRIBUTING.md`](./CONTRIBUTING.md) — short, strict rules (comments, errors, libraries-over-hand-rolled). `tests/comment-policy.test.ts` enforces the comment ones; `npm run verify` is the pre-push gate. By participating you agree to the [Code of Conduct](./CODE_OF_CONDUCT.md). Security issues → [SECURITY.md](./SECURITY.md).
 
-<p align="center">
-  <a href="https://github.com/esengine/reasonix/graphs/contributors">
-    <img src="https://contrib.rocks/image?repo=esengine/reasonix&max=100&columns=12" alt="Contributors to esengine/reasonix" width="860"/>
-  </a>
-</p>
-
 <br/>
 
 ## Non-goals
@@ -150,20 +265,62 @@ Scoped starter tickets — each with background, code pointers, acceptance crite
 
 ## Star History
 
-<a href="https://www.star-history.com/?repos=esengine%2Freasonix&type=timeline&logscale=&legend=top-left">
+<a href="https://www.star-history.com/?repos=esengine%2FDeepSeek-Reasonix&type=date&legend=top-left">
  <picture>
-   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/chart?repos=esengine/reasonix&type=timeline&theme=dark&logscale&legend=top-left" />
-   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/chart?repos=esengine/reasonix&type=timeline&logscale&legend=top-left" />
-   <img alt="Star History Chart" src="https://api.star-history.com/chart?repos=esengine/reasonix&type=timeline&logscale&legend=top-left" />
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/chart?repos=esengine/DeepSeek-Reasonix&type=date&theme=dark&legend=top-left" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/chart?repos=esengine/DeepSeek-Reasonix&type=date&legend=top-left" />
+   <img alt="Star History Chart" src="https://api.star-history.com/chart?repos=esengine/DeepSeek-Reasonix&type=date&legend=top-left" />
  </picture>
 </a>
 
 <br/>
 
+## Support
+
+If Reasonix has been useful and you'd like to say thanks, you can. It stays a coffee, not a contract — donations don't buy feature priority or change how issues get triaged.
+
+- **International** — PayPal: [paypal.me/yuhuahui](https://paypal.me/yuhuahui)
+- **国内** — 微信支付（扫码）
+
+<p align="center">
+  <img src=".github/sponsor/wechat-pay.jpg" alt="WeChat Pay QR code" width="240"/>
+</p>
+
+<br/>
+
+## Acknowledgments
+
+A small list of folks whose work has shaped Reasonix the most — measured
+by both commit count and code volume. **Listed alphabetically, no ordering
+of importance.** The full contributor graph is on
+[GitHub](https://github.com/esengine/DeepSeek-Reasonix/graphs/contributors).
+
+- [**ctharvey**](https://github.com/ctharvey)
+- [**dimasd-angga**](https://github.com/dimasd-angga) (Dimas D. Angga)
+- [**Evan-Pycraft**](https://github.com/Evan-Pycraft)
+- [**ForeverYoungPp**](https://github.com/ForeverYoungPp)
+- [**GTC2080**](https://github.com/GTC2080) (TaoMu)
+- [**kabaka9527**](https://github.com/kabaka9527)
+- [**lisniuse**](https://github.com/lisniuse) (Richie)
+- [**wade19990814-hue**](https://github.com/wade19990814-hue)
+- [**wviana**](https://github.com/wviana) (Wesley Viana)
+
+Also a separate thank-you to [**Bernardxu123**](https://github.com/Bernardxu123)
+for designing the project logo (see [`docs/brand/`](./docs/brand/)), and to
+[AIGC Link](https://xhslink.com/m/80ngts127cA) for promoting the project on XiaoHongShu.
+
+<p align="center">
+  <a href="https://github.com/esengine/DeepSeek-Reasonix/graphs/contributors">
+    <img src="https://contrib.rocks/image?repo=esengine/DeepSeek-Reasonix&max=100&columns=12" alt="Contributors to esengine/DeepSeek-Reasonix" width="860"/>
+  </a>
+</p>
+
+<br/>
+
 ---
 
 <p align="center">
   <sub>MIT — see <a href="./LICENSE">LICENSE</a></sub>
   <br/>
-  <sub>Built by the community at <a href="https://github.com/esengine/reasonix/graphs/contributors">esengine/reasonix</a></sub>
+  <sub>Built by the community at <a href="https://github.com/esengine/DeepSeek-Reasonix/graphs/contributors">esengine/DeepSeek-Reasonix</a></sub>
 </p>

README.zh-CN.md

@@ -7,22 +7,33 @@
    · 
   <strong>简体中文</strong>
   &nbsp;·&nbsp;
-  <a href="https://esengine.github.io/reasonix/">官方网站</a>
+  <a href="https://esengine.github.io/DeepSeek-Reasonix/">官方网站</a>
+  &nbsp;·&nbsp;
+  <a href="https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh">配置指南</a>
   &nbsp;·&nbsp;
   <a href="./docs/ARCHITECTURE.md">架构文档</a>
   &nbsp;·&nbsp;
   <a href="./benchmarks/">基准测试</a>
+  &nbsp;·&nbsp;
+  <strong><a href="https://discord.gg/XF78rEME2D">Discord</a></strong>
 </p>
 
 <p align="center">
-  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/v/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="npm version"/></a>
-  <a href="https://github.com/esengine/reasonix/actions/workflows/ci.yml"><img src="https://img.shields.io/github/actions/workflow/status/esengine/reasonix/ci.yml?style=flat-square&label=ci&color=0d1117&labelColor=161b22" alt="CI"/></a>
-  <a href="./LICENSE"><img src="https://img.shields.io/npm/l/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="license"/></a>
-  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/dm/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="downloads"/></a>
-  <a href="./package.json"><img src="https://img.shields.io/node/v/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22" alt="node"/></a>
-  <a href="https://github.com/esengine/reasonix/stargazers"><img src="https://img.shields.io/github/stars/esengine/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22&logo=github" alt="GitHub stars"/></a>
-  <a href="https://github.com/esengine/reasonix/graphs/contributors"><img src="https://img.shields.io/github/contributors/esengine/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22&logo=github" alt="contributors"/></a>
-  <a href="https://github.com/esengine/reasonix/discussions"><img src="https://img.shields.io/github/discussions/esengine/reasonix.svg?style=flat-square&color=0d1117&labelColor=161b22&logo=github" alt="Discussions"/></a>
+  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/v/reasonix.svg?style=flat-square&color=cb3837&labelColor=161b22&logo=npm&logoColor=white" alt="npm version"/></a>
+  <a href="https://github.com/esengine/reasonix/actions/workflows/ci.yml"><img src="https://img.shields.io/github/actions/workflow/status/esengine/reasonix/ci.yml?style=flat-square&label=ci&labelColor=161b22&logo=githubactions&logoColor=white" alt="CI"/></a>
+  <a href="./LICENSE"><img src="https://img.shields.io/npm/l/reasonix.svg?style=flat-square&color=8b949e&labelColor=161b22" alt="license"/></a>
+  <a href="https://www.npmjs.com/package/reasonix"><img src="https://img.shields.io/npm/dm/reasonix.svg?style=flat-square&color=3fb950&labelColor=161b22&label=downloads" alt="downloads"/></a>
+  <a href="./package.json"><img src="https://img.shields.io/node/v/reasonix.svg?style=flat-square&color=5fa04e&labelColor=161b22&logo=nodedotjs&logoColor=white" alt="node"/></a>
+  <a href="https://github.com/esengine/reasonix/stargazers"><img src="https://img.shields.io/github/stars/esengine/reasonix.svg?style=flat-square&color=dbab09&labelColor=161b22&logo=github&logoColor=white" alt="GitHub stars"/></a>
+  <a href="https://github.com/esengine/reasonix/graphs/contributors"><img src="https://img.shields.io/github/contributors/esengine/reasonix.svg?style=flat-square&color=bc8cff&labelColor=161b22&logo=github&logoColor=white" alt="contributors"/></a>
+  <a href="https://github.com/esengine/reasonix/discussions"><img src="https://img.shields.io/github/discussions/esengine/reasonix.svg?style=flat-square&color=58a6ff&labelColor=161b22&logo=github&logoColor=white" alt="Discussions"/></a>
+  <a href="https://discord.gg/XF78rEME2D"><img src="https://img.shields.io/badge/discord-join-5865F2.svg?style=flat-square&labelColor=161b22&logo=discord&logoColor=white" alt="Discord"/></a>
+</p>
+
+<p align="center">
+  <a href="https://oosmetrics.com/repo/esengine/reasonix"><img src="https://api.oosmetrics.com/api/v1/badge/achievement/9e931d80-2050-4b10-902e-44970cc133ad.svg" alt="oosmetrics — Agents 速度榜 Top 2"/></a>
+  <a href="https://oosmetrics.com/repo/esengine/reasonix"><img src="https://api.oosmetrics.com/api/v1/badge/achievement/556d94b3-61b7-486b-baf2-888b9327deab.svg" alt="oosmetrics — LLMs 速度榜 Top 3"/></a>
+  <a href="https://oosmetrics.com/repo/esengine/reasonix"><img src="https://api.oosmetrics.com/api/v1/badge/achievement/0f457d4c-efca-4d15-ad2b-139691ff342c.svg" alt="oosmetrics — CLI 速度榜 Top 3"/></a>
 </p>
 
 <br/>
@@ -41,30 +52,101 @@
 > [!TIP]
 > **缓存稳定不是开关，而是循环要围绕设计的不变量。** 这就是 Reasonix 只支持 DeepSeek 的根本原因 —— 每一层都为 DeepSeek 字节稳定的前缀缓存机制调过。
 
+> [!IMPORTANT]
+> **加入社区 · Community** — 中英双语 Discord，频道包括 `#求助` / `#help`、`#分享` / `#showcase`、`#想法反馈`、贡献者专属 PR 协调区。在群内绑定 GitHub 后自动识别贡献者身份。→ **<https://discord.gg/XF78rEME2D>**
+
 <br/>
 
 ## 安装
 
-```bash
+~~~bash
 cd my-project
 npx reasonix code   # 首次运行粘贴 DeepSeek API Key，之后会记住
-```
+~~~
 
-要求 Node ≥ 22。已在 macOS · Linux · Windows（PowerShell · Git Bash · Windows Terminal）测过。[去拿 DeepSeek API Key →](https://platform.deepseek.com/api_keys) · 完整 flag 看 `reasonix code --help`。
+要求 Node ≥ 22。在 macOS · Linux · Windows（PowerShell · Git Bash · Windows Terminal）都跑得顺。[去拿 DeepSeek API Key →](https://platform.deepseek.com/api_keys) · 完整 flag 看 `reasonix code --help`。
+
+`npx` 是推荐路径 —— 不用全局安装，每次都拿最新版。如果你天天用、想把 `reasonix` 装到 `PATH`，跑一次 `reasonix update`。
+
+| 命令 | 何时用 |
+|---|---|
+| `reasonix code [dir]` | 编码 agent。**先用这个。** |
+| `reasonix chat` | 纯聊天 —— 不挂文件系统 / shell 工具。 |
+| `reasonix run "task"` | 一次性，结果流到 stdout。适合 shell 管道。 |
+| `reasonix doctor` | 体检：Node 版本、API Key、MCP 接线。 |
+| `reasonix update` | 升级 Reasonix 本身。 |
+
+其他子命令（`replay` · `diff` · `events` · `stats` · `index` · `mcp` · `prune-sessions`）在 `reasonix --help` 和 [CLI 参考](https://esengine.github.io/DeepSeek-Reasonix/#cli)。
+
+### QQ 通道
+
+Reasonix 可以把现有的 `chat`、`code` 或桌面端会话延伸到 QQ 上，作为远程通道使用；它扩展的是当前会话，不是独立的新运行模式。
+
+- CLI：先启动会话，再执行 `/qq connect`
+- 桌面端：打开 `设置 -> 通用 -> QQ通道`
+
+连接成功后，QQ 消息可以进入当前会话，助手回复会回到 QQ，后续确认和跟进交互也可以继续在 QQ 上完成。
+
+完整配置、桌面端快速上手与排障说明见：[QQ 连接指南](./docs/qq-connect.zh-CN.md)。
+
+<details>
+<summary><strong>切换工作区 · chat vs. code · 写第一个 Skill</strong></summary>
+
+**切换工作区。** Reasonix 把文件系统工具作用域绑定在启动目录，传 `--dir` 可以指别处。中途切换是有意不支持的（消息日志和 memory 路径会和旧根目录混在一起）—— 退出再启动。
+
+~~~bash
+npx reasonix code --dir /path/to/project
+~~~
+
+**`chat` 还是 `code`？** `code` 是默认入口、唯一带文件系统 / shell 工具和 SEARCH/REPLACE 审阅的模式。`chat` 是更轻量的纯对话壳——想要一个挂着 MCP 但没有磁盘权限的“思路助手”时用它。
+
+| 你拿到什么 | `code` | `chat` |
+|---|---|---|
+| 文件系统工具 + `edit_file` | ✓ | — |
+| SEARCH/REPLACE → `/apply` 审阅 | ✓ | — |
+| Shell 工具（带 gate） | ✓ | — |
+| Plan 模式 · `/todo` · `/skill new` · `/mcp add` | ✓ | — |
+| Memory（`remember` / `recall_memory`） | 项目 + 全局 | 仅全局 |
+| 配置里的 MCP · web 搜索 · `ask_choice` | ✓ | ✓ |
+| 编码导向系统提示词 | ✓ | 通用 |
+| Session 作用域 | 按目录 | 共享默认 |
+
+**写第一个 Skill。** 暂无在线市场——自己写。编辑文件（`description:` frontmatter + 正文），然后 `/skill list` 就能看到。frontmatter 加 `runAs: subagent` 会以隔离 subagent 跑，而不是把正文内联进父 prompt。
+
+~~~bash
+/skill new my-skill              # <project>/.reasonix/skills/my-skill.md
+/skill new my-skill --global     # ~/.reasonix/skills，跨项目共用
+~~~
+
+</details>
+
+<br/>
+
+## 配置
+
+一个全局 JSON 文件 `~/.reasonix/config.json`，加上项目级 `<project>/.reasonix/` 下的覆盖。完整的双语参考 —— 每一个 key、每一条斜杠命令、skills / memory / hooks 在磁盘上的形状 —— 都在这里：
+
+> 📘 **[配置指南](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh)** · [English](https://esengine.github.io/DeepSeek-Reasonix/configuration.html)
+
+| 主题 | 速读 |
+|---|---|
+| [MCP 服务器](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh#mcp) | stdio · SSE · Streamable HTTP。`config.json` 和 `--mcp` 共用同一种 spec 格式。 |
+| [Skills](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh#skills) | 模型可以调用的 markdown 剧本。`inline` 或 `subagent` 两种模式。 |
+| [Memory](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh#memory) | 用户私有的知识，钉进前缀。`user` / `feedback` / `project` / `reference` 四类。 |
+| [Hooks](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh#hooks) | 生命周期事件触发的 shell 命令。`PreToolUse`（拦截）· `PostToolUse` · `UserPromptSubmit` · `Stop`。 |
+| [权限](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh#permissions) | 按工作区的 shell 白名单，精确前缀匹配。 |
+| [Web 搜索](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh#search) | 默认 Mojeek；用 `/search-engine` 可切到自托管的 SearXNG 或 Metaso。 |
+| [语义索引](https://esengine.github.io/DeepSeek-Reasonix/configuration.html?lang=zh#index) | `reasonix index` —— 本地 Ollama，或任何 OpenAI 兼容的 embedding 接口。 |
 
 <br/>
 
 ## Reasonix 的不同之处
 
-整个循环围绕四根支柱组织。每一根解决的都是通用 agent 框架根本看不见的问题 —— 因为它们是为另一种缓存机制设计的。
-
-<p align="center">
-  <a href="./docs/ARCHITECTURE.md"><img src="docs/assets/pillars.zh-CN.svg" alt="Reasonix 四大支柱 — 缓存优先循环、R1 思维提取、工具调用修复、成本控制" width="880"/></a>
-</p>
+整个循环围绕三根支柱组织。每一根解决的都是通用 agent 框架根本看不见的问题 —— 因为它们是为另一种缓存机制设计的。
 
 <sub align="center">
 
-各支柱完整说明 → [Pillar 1](./docs/ARCHITECTURE.md#pillar-1--cache-first-loop) · [Pillar 2](./docs/ARCHITECTURE.md#pillar-2--r1-thought-harvesting-opt-in) · [Pillar 3](./docs/ARCHITECTURE.md#pillar-3--tool-call-repair) · [Pillar 4](./docs/ARCHITECTURE.md#pillar-4--cost-control-v06)
+各支柱完整说明 → [Pillar 1 — 缓存优先循环](./docs/ARCHITECTURE.md#pillar-1--cache-first-loop) · [Pillar 2 — 工具调用修复](./docs/ARCHITECTURE.md#pillar-2--tool-call-repair) · [Pillar 3 — 成本控制](./docs/ARCHITECTURE.md#pillar-3--cost-control-v06)
 
 </sub>
 
@@ -98,8 +180,10 @@ npx reasonix code   # 首次运行粘贴 DeepSeek API Key，之后会记住
 ## 文档
 
 - [**架构**](./docs/ARCHITECTURE.md) —— 四大支柱、缓存优先循环、思维提取、脚手架
+- [**CLI 参考**](./docs/CLI-REFERENCE.md) —— 每个 shell 子命令、每个 slash 命令、每个快捷键
+- [**QQ 连接指南**](./docs/qq-connect.zh-CN.md) —— CLI 首次连接流程、桌面端入口和 QQ 开放平台凭据
 - [**基准测试**](./benchmarks/) —— τ-bench-lite harness、transcript、成本方法论
-- [**官方网站**](https://esengine.github.io/reasonix/) —— 入门、Dashboard 设计稿、TUI 设计稿
+- [**官方网站**](https://esengine.github.io/DeepSeek-Reasonix/) —— 入门、Dashboard 设计稿、TUI 设计稿
 - [**贡献指南**](./CONTRIBUTING.md) —— 注释规则、错误处理、用现成库不手写
 - [**行为准则**](./CODE_OF_CONDUCT.md) · [**安全策略**](./SECURITY.md)
 
@@ -108,14 +192,14 @@ npx reasonix code   # 首次运行粘贴 DeepSeek API Key，之后会记住
 ## 社区
 
 > [!NOTE]
-> Reasonix 是开源、社区共建的项目。下面贡献者墙不是装饰 —— 每一个头像都对应一次真实合并的 PR。
+> Reasonix 是开源、社区共建的项目。文末"致谢"那面贡献者墙上的每一个头像，都对应一次真实合并的 PR。
 
 给新手准备的入门 issue —— 每个都带背景说明、代码定位、验收标准、提示 —— 全部挂在 [`good first issue`](https://github.com/esengine/reasonix/labels/good%20first%20issue) 标签下。挑任意一个还没人认领的就行。
 
 **正在征集意见的 Discussions：**
 
 - [#20 · CLI / TUI 设计](https://github.com/esengine/reasonix/discussions/20) —— 哪里坏了、哪里少东西、哪里你会怎么改？
-- [#21 · Dashboard 设计](https://github.com/esengine/reasonix/discussions/21) —— 对着[设计稿](https://esengine.github.io/reasonix/design/agent-dashboard.html)拍砖
+- [#21 · Dashboard 设计](https://github.com/esengine/reasonix/discussions/21) —— 对着[设计稿](https://esengine.github.io/DeepSeek-Reasonix/design/agent-dashboard.html)拍砖
 - [#22 · 未来功能愿望单](https://github.com/esengine/reasonix/discussions/22) —— 你希望 Reasonix 长出什么功能？
 
 **正在使用 Reasonix，愿意让更多人了解它？** 欢迎将相关博客、文章、截图、演讲或视频发布到 [**Show and tell**](https://github.com/esengine/reasonix/discussions/categories/show-and-tell)。项目没有营销预算，新用户主要通过社区口碑找到这里。持续参与传播的用户将获得下方这枚徽章，颁发后会展示在贡献者墙旁：
@@ -128,12 +212,6 @@ npx reasonix code   # 首次运行粘贴 DeepSeek API Key，之后会记住
 
 **第一次提 PR 之前**：先读 [`CONTRIBUTING.md`](./CONTRIBUTING.md) —— 短小、严格的项目规则（注释、错误处理、用现成库不手写）。`tests/comment-policy.test.ts` 静态强制执行注释那部分，`npm run verify` 是 push 前的闸。参与本项目即同意 [行为准则](./CODE_OF_CONDUCT.md)。安全相关问题请走 [SECURITY.md](./SECURITY.md)。
 
-<p align="center">
-  <a href="https://github.com/esengine/reasonix/graphs/contributors">
-    <img src="https://contrib.rocks/image?repo=esengine/reasonix&max=100&columns=12" alt="esengine/reasonix 贡献者" width="860"/>
-  </a>
-</p>
-
 <br/>
 
 ## 不做的事
@@ -150,20 +228,60 @@ npx reasonix code   # 首次运行粘贴 DeepSeek API Key，之后会记住
 
 ## Star 趋势
 
-<a href="https://www.star-history.com/?repos=esengine%2Freasonix&type=timeline&logscale=&legend=top-left">
+<a href="https://www.star-history.com/?repos=esengine%2FDeepSeek-Reasonix&type=date&legend=top-left">
  <picture>
-   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/chart?repos=esengine/reasonix&type=timeline&theme=dark&logscale&legend=top-left" />
-   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/chart?repos=esengine/reasonix&type=timeline&logscale&legend=top-left" />
-   <img alt="Star History Chart" src="https://api.star-history.com/chart?repos=esengine/reasonix&type=timeline&logscale&legend=top-left" />
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/chart?repos=esengine/DeepSeek-Reasonix&type=date&theme=dark&legend=top-left" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/chart?repos=esengine/DeepSeek-Reasonix&type=date&legend=top-left" />
+   <img alt="Star History Chart" src="https://api.star-history.com/chart?repos=esengine/DeepSeek-Reasonix&type=date&legend=top-left" />
  </picture>
 </a>
 
 <br/>
 
+## 支持本项目
+
+如果 Reasonix 帮你省了时间或 token，欢迎请杯咖啡。捐助不会换来 feature 优先级，也不会影响 issue 的处理顺序——就是「谢谢」。
+
+- **国内** — 微信支付（扫下方二维码）
+- **海外** — PayPal: [paypal.me/yuhuahui](https://paypal.me/yuhuahui)
+
+<p align="center">
+  <img src=".github/sponsor/wechat-pay.jpg" alt="微信支付收款码" width="240"/>
+</p>
+
+<br/>
+
+## 致谢
+
+下面这些朋友的工作塑造了 Reasonix 今天的样子 —— 综合 commit 数和代码量两个维度。
+**按字母顺序排列，排名不分先后。** 完整贡献者列表在
+[GitHub](https://github.com/esengine/DeepSeek-Reasonix/graphs/contributors)。
+
+- [**ctharvey**](https://github.com/ctharvey)
+- [**dimasd-angga**](https://github.com/dimasd-angga)（Dimas D. Angga）
+- [**Evan-Pycraft**](https://github.com/Evan-Pycraft)
+- [**ForeverYoungPp**](https://github.com/ForeverYoungPp)
+- [**GTC2080**](https://github.com/GTC2080)（TaoMu）
+- [**kabaka9527**](https://github.com/kabaka9527)
+- [**lisniuse**](https://github.com/lisniuse)（Richie）
+- [**wade19990814-hue**](https://github.com/wade19990814-hue)
+- [**wviana**](https://github.com/wviana)（Wesley Viana）
+
+另外特别感谢 [**Bernardxu123**](https://github.com/Bernardxu123) 设计的项目 logo
+（见 [`docs/brand/`](./docs/brand/)），以及 [AIGC Link](https://xhslink.com/m/80ngts127cA) 在小红书上的推广。
+
+<p align="center">
+  <a href="https://github.com/esengine/DeepSeek-Reasonix/graphs/contributors">
+    <img src="https://contrib.rocks/image?repo=esengine/DeepSeek-Reasonix&max=100&columns=12" alt="esengine/DeepSeek-Reasonix 贡献者" width="860"/>
+  </a>
+</p>
+
+<br/>
+
 ---
 
 <p align="center">
   <sub>MIT —— 见 <a href="./LICENSE">LICENSE</a></sub>
   <br/>
-  <sub>由 <a href="https://github.com/esengine/reasonix/graphs/contributors">esengine/reasonix</a> 社区共建</sub>
+  <sub>由 <a href="https://github.com/esengine/DeepSeek-Reasonix/graphs/contributors">esengine/DeepSeek-Reasonix</a> 社区共建</sub>
 </p>

benchmarks/harvest/README.md

@@ -1,106 +0,0 @@
-# Harvest eval harness (Pillar 2)
-
-Measures Pillar 2 (R1 Thought Harvesting) the same way `tau-bench/`
-measures Pillar 1 (Cache-First Loop): isolate one variable, produce
-numbers anyone can reproduce.
-
-## What's different from τ-bench-lite?
-
-Deliberately different task shape:
-
-| | τ-bench-lite | harvest-bench |
-|---|---|---|
-| task style | multi-turn tool-use | single-turn reasoning |
-| user simulator | yes (LLM) | no |
-| DB state | yes | no |
-| checker | DB-predicate | regex + set/value compare |
-| target | Pillar 1 | Pillar 2 |
-| model | deepseek-chat (default) | deepseek-reasoner (only R1 has `reasoning_content` for harvest to work on) |
-
-The two harnesses answer different questions:
-
-- **τ-bench-lite**: *"Does Cache-First actually cut cost on real tool-use
-  workflows?"* (yes — 47.7pp cache, −39% cost on 48-run data.)
-- **harvest-bench**: *"Does the extra V3 harvest call add measurable
-  value above plain R1?"* (TBD — run it to find out.)
-
-## Modes
-
-Three modes isolate one variable each:
-
-| mode | model | harvest | what it measures |
-|---|---|---|---|
-| `baseline` | deepseek-chat | off | floor reference — V3 at its best |
-| `reasoner` | deepseek-reasoner | off | raw R1 gain over V3 on reasoning |
-| `reasoner-harvest` | deepseek-reasoner | on | R1 + the extra V3 harvest call |
-
-Deltas:
-
-- `baseline → reasoner` answers "is R1 worth the price on these
-  problems?"
-- `reasoner → reasoner-harvest` answers "is the harvest call worth
-  its incremental cost?"
-
-## Quickstart
-
-```bash
-# Dry-run — no API, smoke-test the wiring
-npx tsx benchmarks/harvest/runner.ts --dry
-
-# Full run (live DeepSeek, costs ~$0.20-0.60 for 6 tasks × 3 modes × 1 repeat)
-export DEEPSEEK_API_KEY=sk-...
-npx tsx benchmarks/harvest/runner.ts
-
-# Tighter run with 3 repeats (~$0.60-2.00)
-npx tsx benchmarks/harvest/runner.ts --repeats 3
-
-# Only the hard tasks (skip the easy floor)
-npx tsx benchmarks/harvest/runner.ts --task pseudoprime_base2
-npx tsx benchmarks/harvest/runner.ts --task derangements_d7
-npx tsx benchmarks/harvest/runner.ts --task euler_quadratic_break
-
-# Bump per-call timeout (reasoner + harvest occasionally blow past the 120s default)
-npx tsx benchmarks/harvest/runner.ts --timeout 600
-
-# Per-run transcripts so you can reasonix replay / diff them
-npx tsx benchmarks/harvest/runner.ts --repeats 3 --transcripts-dir transcripts/
-
-# Render report
-npx tsx benchmarks/harvest/report.ts benchmarks/harvest/results-*.json
-```
-
-## Tasks (v0.3 seed)
-
-Split into two bands:
-
-**Easy band** — V3 chat solves these, so baseline has a real pass rate and the bench has a reference floor.
-
-| id | shape | why |
-|---|---|---|
-| `mod7_list` | number theory, 29-element list | R1 often tries enumeration first, then reaches for modular arithmetic — clean rejectedPaths signal |
-| `flips_until_3heads` | probability, single integer | classic recurrence; R1 either derives or recalls, harvest should see hypotheses diverge |
-| `three_hats` | logic puzzle, one-word answer | pure deduction chain, tests harvest's ability to extract the nested reasoning |
-
-**Hard band** — picked specifically for known V3 failure modes. If R1 systematically beats V3 on these, and harvest further beats R1-only, we have our Pillar 2 story.
-
-| id | shape | why V3 tends to fail |
-|---|---|---|
-| `pseudoprime_base2` | smallest Fermat pseudoprime to base 2 = **341** | V3 often answers 561 (Carmichael) or some other composite it remembers — R1 actually checks 2^n mod n |
-| `derangements_d7` | D_7 = **1854** | V3 approximates via n!/e and rounds wrong, or recalls D_6/D_8; R1 uses the recurrence D_n=(n−1)(D_{n−1}+D_{n−2}) |
-| `euler_quadratic_break` | smallest n where n²+n+41 is composite = **40** | V3 frequently confuses with n²−n+41 (first fails at 41); R1 checks small n systematically |
-
-Adding a new task: see `tasks.ts`. Any checker that's deterministic is
-fair game — extract numeric/list/text with regex, compare with set
-equality or string matching.
-
-## Non-goals
-
-- **No LLM-as-judge.** Brittle and expensive; defeats the point of a
-  reproducible bench. If a checker is too hard to write deterministically,
-  the task doesn't belong here.
-- **No tool-use tasks.** Those live in `tau-bench/`. Different story.
-- **No multi-turn.** v0.3 harness is single-turn Q/A. Multi-turn reasoning
-  eval is separate scope.
-- **No benchmark-data cherry-picking.** When results come in, we publish
-  them whether they validate Pillar 2 or not. "harvest didn't help on
-  these 3 tasks" is still useful information.

benchmarks/harvest/report.md

@@ -1,82 +0,0 @@
-# Reasonix harvest eval (Pillar 2)
-
-**Date:** 2026-04-21T16:44:21.011Z
-**Tasks:** 6 · repeats × 1 · modes: baseline, reasoner, reasoner-harvest
-**Reasonix version:** 0.2.2
-
-## Summary by mode
-
-| mode | runs | pass rate | cache hit | cost / run | harvest turns | subgoals | uncertainties |
-|---|---:|---:|---:|---:|---:|---:|---:|
-| baseline | 6 | 100% | 39.5% | $0.001371 | 0.0 | 0.0 | 0.0 |
-| reasoner | 6 | 100% | 74.2% | $0.004170 | 0.0 | 0.0 | 0.0 |
-| reasoner-harvest | 6 | 83% | 61.6% | $0.003304 | 0.8 | 2.8 | 1.3 |
-
-## Deltas
-
-- **baseline → reasoner**
-  - pass rate: 0pp
-  - cost: ×3.04 (each run costs more)
-  - harvest signal / run: 0.0 subgoals, 0.0 uncertainties
-
-- **baseline → reasoner-harvest**
-  - pass rate: -17pp
-  - cost: ×2.41 (each run costs more)
-  - harvest signal / run: 2.8 subgoals, 1.3 uncertainties
-
-## Per-task breakdown
-
-| task | mode | rep | verdict | cache | cost | sg | un | note |
-|---|---|---:|:---:|---:|---:|---:|---:|---|
-| mod7_list | baseline | 1 | ✅ | 86.5% | $0.001361 | 0 | 0 |  |
-| mod7_list | reasoner | 1 | ✅ | 86.5% | $0.004797 | 0 | 0 |  |
-| mod7_list | reasoner-harvest | 1 | ✅ | 86.5% | $0.003045 | 4 | 2 |  |
-| flips_until_3heads | baseline | 1 | ✅ | 92.8% | $0.001198 | 0 | 0 |  |
-| flips_until_3heads | reasoner | 1 | ✅ | 92.8% | $0.002830 | 0 | 0 |  |
-| flips_until_3heads | reasoner-harvest | 1 | ✅ | 92.8% | $0.001691 | 4 | 0 |  |
-| three_hats | baseline | 1 | ✅ | 57.7% | $0.001514 | 0 | 0 |  |
-| three_hats | reasoner | 1 | ✅ | 57.7% | $0.009340 | 0 | 0 |  |
-| three_hats | reasoner-harvest | 1 | ✅ | 57.7% | $0.009651 | 3 | 2 |  |
-| pseudoprime_base2 | baseline | 1 | ✅ | 0.0% | $0.001894 | 0 | 0 |  |
-| pseudoprime_base2 | reasoner | 1 | ✅ | 75.3% | $0.003128 | 0 | 0 |  |
-| pseudoprime_base2 | reasoner-harvest | 1 | ❌ | 0.0% | $0.000000 | 0 | 0 | This operation was aborted |
-| derangements_d7 | baseline | 1 | ✅ | 0.0% | $0.001273 | 0 | 0 |  |
-| derangements_d7 | reasoner | 1 | ✅ | 71.9% | $0.003492 | 0 | 0 |  |
-| derangements_d7 | reasoner-harvest | 1 | ✅ | 71.9% | $0.002843 | 3 | 2 |  |
-| euler_quadratic_break | baseline | 1 | ✅ | 0.0% | $0.000985 | 0 | 0 |  |
-| euler_quadratic_break | reasoner | 1 | ✅ | 61.0% | $0.001431 | 0 | 0 |  |
-| euler_quadratic_break | reasoner-harvest | 1 | ✅ | 61.0% | $0.002594 | 3 | 2 |  |
-
-## Scope
-
-Unlike τ-bench-lite, these tasks are single-turn reasoning problems (no user simulator, no DB, no tool calls). Checkers are deterministic — regex + set / value compare, never an LLM judge. The point is to isolate whether the Pillar 2 harvest step adds measurable value above plain reasoner usage.
-
-Interpretation: `baseline` (chat / V3) is a floor. `reasoner` shows the raw R1 gain. `reasoner-harvest` isolates the cost + quality delta from the extra V3 harvest call.
-## Findings (v0.3, 18-run set)
-
-Two bands of tasks tried (easy: mod7 / flips / hats; hard: pseudoprime341 / D_7 / Euler quadratic). The hard band was chosen for *known V3 failure modes*. Result:
-
-1. **V3 chat passed all six tasks, including the three "hard" ones.** DeepSeek V3 knew 341 is the smallest base-2 pseudoprime, computed D_7=1854, and identified n=40 as the first Euler-polynomial failure. The tasks are well-known enough to be in training; the trap-answer variants (561, 265, 41) that the checkers specifically reject didn't fire.
-2. **Reasoner cost 3.04× baseline for identical pass rates (6/6 both sides).** On this task set, R1 adds cost and latency without measurable quality. The cache-hit story *does* extend to reasoner (74.2% mean), so Pillar 1 generalizes to R1 — but that's not a Pillar 2 story.
-3. **Harvest produced real signal** (mean 2.8 subgoals, 1.3 uncertainties per run where it fired) but didn't improve outcomes. One run hit the 300s timeout (bumped from 120s), suggesting reasoner-harvest latency is still unpredictable on some problems.
-
-### What this tells us about Pillar 2 positioning
-
-We've now given harvest two shots at showing answer-quality value on pure reasoning tasks. Both times V3 ate its lunch. This isn't a framework bug — it's a positioning signal:
-
-- **On well-known math / logic / counting problems, DeepSeek V3 is strong enough that paying for R1 is not justified by accuracy.** Pillar 2's "smart preset" cost multiplier (10×) quoted in the README is real but for most single-question Q/A it buys nothing.
-- **Harvest's plausible value surfaces are not "better math answers".** More likely: (a) transparency / auditability for developers, (b) planning support when tools are in the mix, (c) driving branch-sampling on cases where uncertainty correlates with wrongness. None of those are tested here.
-
-### Recommendation
-
-Don't ship v0.3 on the "harvest makes answers more correct" claim — the data doesn't support it. Two honest paths forward:
-
-- **Reframe Pillar 2 as a developer-facing introspection feature** (debug visibility into R1's planning). Keep harvest opt-in; stop implying it improves accuracy on end-user tasks.
-- **Move harvest eval to tool-use contexts** where uncertainty matters for *which tool to call next*, not *is this math right*. That's a new task shape — different harness, not a bigger task set here.
-
-In either case, the next Reasonix release is better served by MCP client (Pillar 1 leverage across the ecosystem) than by a bigger harvest-bench data push.
-
-### Notes
-
-- Cache hit on baseline runs surprised me (39.5% mean). That's DeepSeek's *cross-session* prompt cache: the same system prompt ran many times across modes and runs warmed the server-side cache. Real cross-session evidence that Cache-First's value isn't only per-session.
-- 5-subgoals cap still hit uniformly. `HarvestOptions.maxItems` default is 5; harvest is truncating. Moot unless we find a setting where that matters.

benchmarks/harvest/report.ts

@@ -1,229 +0,0 @@
-/** Render a harvest-bench results.json into a markdown report. CLI usage in README. */
-
-import { readFileSync, writeFileSync } from "node:fs";
-import { pathToFileURL } from "node:url";
-import {
-  ALL_MODES,
-  type HarvestBenchReport,
-  type HarvestMode,
-  type HarvestRunResult,
-} from "./types.js";
-
-interface CliArgs {
-  input: string;
-  outPath: string;
-}
-
-function parseArgs(argv: string[]): CliArgs {
-  const out: CliArgs = { input: "", outPath: "benchmarks/harvest/report.md" };
-  const positional: string[] = [];
-  for (let i = 0; i < argv.length; i++) {
-    const a = argv[i];
-    if (a === "--out") out.outPath = argv[++i] ?? out.outPath;
-    else if (a && !a.startsWith("--")) positional.push(a);
-  }
-  out.input = positional[0] ?? "";
-  if (!out.input) {
-    throw new Error("usage: npx tsx benchmarks/harvest/report.ts <results.json> [--out report.md]");
-  }
-  return out;
-}
-
-interface Agg {
-  runs: number;
-  passes: number;
-  avgCache: number;
-  avgCost: number;
-  avgClaudeCost: number;
-  avgHarvestedTurns: number;
-  avgSubgoals: number;
-  avgUncertainties: number;
-}
-
-function aggregate(results: HarvestRunResult[]): Agg {
-  if (results.length === 0) {
-    return {
-      runs: 0,
-      passes: 0,
-      avgCache: 0,
-      avgCost: 0,
-      avgClaudeCost: 0,
-      avgHarvestedTurns: 0,
-      avgSubgoals: 0,
-      avgUncertainties: 0,
-    };
-  }
-  const passes = results.filter((r) => r.verdict === "pass").length;
-  const mean = (fn: (r: HarvestRunResult) => number) =>
-    results.reduce((s, r) => s + fn(r), 0) / results.length;
-  return {
-    runs: results.length,
-    passes,
-    avgCache: mean((r) => r.cacheHitRatio),
-    avgCost: mean((r) => r.costUsd),
-    avgClaudeCost: mean((r) => r.claudeEquivalentUsd),
-    avgHarvestedTurns: mean((r) => r.harvestedTurns),
-    avgSubgoals: mean((r) => r.totalSubgoals),
-    avgUncertainties: mean((r) => r.totalUncertainties),
-  };
-}
-
-export function renderReport(report: HarvestBenchReport): string {
-  const lines: string[] = [];
-  lines.push("# Reasonix harvest eval (Pillar 2)");
-  lines.push("");
-  lines.push(`**Date:** ${report.meta.date}`);
-  lines.push(
-    `**Tasks:** ${report.meta.taskCount} · repeats × ${report.meta.repeatsPerTask} · modes: ${report.meta.modesRun.join(", ")}`,
-  );
-  lines.push(`**Reasonix version:** ${report.meta.reasonixVersion}`);
-  lines.push("");
-
-  // Per-mode summary
-  lines.push("## Summary by mode");
-  lines.push("");
-  lines.push(
-    "| mode | runs | pass rate | cache hit | cost / run | harvest turns | subgoals | uncertainties |",
-  );
-  lines.push("|---|---:|---:|---:|---:|---:|---:|---:|");
-  for (const mode of ALL_MODES) {
-    const rs = report.results.filter((r) => r.mode === mode);
-    const a = aggregate(rs);
-    if (a.runs === 0) continue;
-    lines.push(
-      `| ${mode} | ${a.runs} | ${pct(a.passes, a.runs)} | ${pct1(a.avgCache)} | $${a.avgCost.toFixed(6)} | ${a.avgHarvestedTurns.toFixed(1)} | ${a.avgSubgoals.toFixed(1)} | ${a.avgUncertainties.toFixed(1)} |`,
-    );
-  }
-  lines.push("");
-
-  // Pairwise deltas that actually answer the question
-  lines.push("## Deltas");
-  lines.push("");
-  const modes = ALL_MODES.filter((m) => report.results.some((r) => r.mode === m));
-  if (modes.length >= 2) {
-    const baseline = aggregate(report.results.filter((r) => r.mode === modes[0]));
-    for (let i = 1; i < modes.length; i++) {
-      const mode = modes[i]!;
-      const agg = aggregate(report.results.filter((r) => r.mode === mode));
-      const passDelta =
-        agg.passes / Math.max(agg.runs, 1) - baseline.passes / Math.max(baseline.runs, 1);
-      const costRatio = baseline.avgCost > 0 ? agg.avgCost / baseline.avgCost : 0;
-      lines.push(`- **${modes[0]} → ${mode}**`);
-      lines.push(`  - pass rate: ${(passDelta * 100).toFixed(0)}pp`);
-      lines.push(
-        `  - cost: ×${costRatio.toFixed(2)} (each run costs ${costRatio > 1 ? "more" : "less"})`,
-      );
-      lines.push(
-        `  - harvest signal / run: ${agg.avgSubgoals.toFixed(1)} subgoals, ${agg.avgUncertainties.toFixed(1)} uncertainties`,
-      );
-      lines.push("");
-    }
-  }
-
-  // Per-task breakdown
-  lines.push("## Per-task breakdown");
-  lines.push("");
-  const byTask = new Map<string, HarvestRunResult[]>();
-  for (const r of report.results) {
-    const list = byTask.get(r.taskId) ?? [];
-    list.push(r);
-    byTask.set(r.taskId, list);
-  }
-  lines.push("| task | mode | rep | verdict | cache | cost | sg | un | note |");
-  lines.push("|---|---|---:|:---:|---:|---:|---:|---:|---|");
-  for (const [taskId, runs] of byTask) {
-    for (const r of runs) {
-      const mark = r.verdict === "pass" ? "✅" : r.verdict === "fail" ? "❌" : "•";
-      lines.push(
-        `| ${taskId} | ${r.mode} | ${r.repeat} | ${mark} | ${pct1(r.cacheHitRatio)} | $${r.costUsd.toFixed(6)} | ${r.totalSubgoals} | ${r.totalUncertainties} | ${truncate(r.checkNote ?? "", 40)} |`,
-      );
-    }
-  }
-  lines.push("");
-
-  lines.push("## Scope");
-  lines.push("");
-  lines.push(
-    "Unlike τ-bench-lite, these tasks are single-turn reasoning problems (no user simulator, no DB, no tool calls). Checkers are deterministic — regex + set / value compare, never an LLM judge. The point is to isolate whether the Pillar 2 harvest step adds measurable value above plain reasoner usage.",
-  );
-  lines.push("");
-  lines.push(
-    "Interpretation: `baseline` (chat / V3) is a floor. `reasoner` shows the raw R1 gain. `reasoner-harvest` isolates the cost + quality delta from the extra V3 harvest call.",
-  );
-
-  return lines.join("\n");
-}
-
-/** Findings prose lives in report.md (hand-written after rendering); this stub keeps the function shape. */
-export function renderFindings(_report: HarvestBenchReport): string {
-  return [
-    "",
-    "## Findings (v0.3, 18-run set)",
-    "",
-    "Two bands of tasks tried (easy: mod7 / flips / hats; hard: pseudoprime341 / D_7 / Euler quadratic). The hard band was chosen for *known V3 failure modes*. Result:",
-    "",
-    '1. **V3 chat passed all six tasks, including the three "hard" ones.** DeepSeek V3 knew 341 is the smallest base-2 pseudoprime, computed D_7=1854, and identified n=40 as the first Euler-polynomial failure. The tasks are well-known enough to be in training; the trap-answer variants (561, 265, 41) that the checkers specifically reject didn\'t fire.',
-    "2. **Reasoner cost 3.04× baseline for identical pass rates (6/6 both sides).** On this task set, R1 adds cost and latency without measurable quality. The cache-hit story *does* extend to reasoner (74.2% mean), so Pillar 1 generalizes to R1 — but that's not a Pillar 2 story.",
-    "3. **Harvest produced real signal** (mean 2.8 subgoals, 1.3 uncertainties per run where it fired) but didn't improve outcomes. One run hit the 300s timeout (bumped from 120s), suggesting reasoner-harvest latency is still unpredictable on some problems.",
-    "",
-    "### What this tells us about Pillar 2 positioning",
-    "",
-    "We've now given harvest two shots at showing answer-quality value on pure reasoning tasks. Both times V3 ate its lunch. This isn't a framework bug — it's a positioning signal:",
-    "",
-    '- **On well-known math / logic / counting problems, DeepSeek V3 is strong enough that paying for R1 is not justified by accuracy.** Pillar 2\'s "smart preset" cost multiplier (10×) quoted in the README is real but for most single-question Q/A it buys nothing.',
-    '- **Harvest\'s plausible value surfaces are not "better math answers".** More likely: (a) transparency / auditability for developers, (b) planning support when tools are in the mix, (c) driving branch-sampling on cases where uncertainty correlates with wrongness. None of those are tested here.',
-    "",
-    "### Recommendation",
-    "",
-    "Don't ship v0.3 on the \"harvest makes answers more correct\" claim — the data doesn't support it. Two honest paths forward:",
-    "",
-    "- **Reframe Pillar 2 as a developer-facing introspection feature** (debug visibility into R1's planning). Keep harvest opt-in; stop implying it improves accuracy on end-user tasks.",
-    "- **Move harvest eval to tool-use contexts** where uncertainty matters for *which tool to call next*, not *is this math right*. That's a new task shape — different harness, not a bigger task set here.",
-    "",
-    "In either case, the next Reasonix release is better served by MCP client (Pillar 1 leverage across the ecosystem) than by a bigger harvest-bench data push.",
-    "",
-    "### Notes",
-    "",
-    "- Cache hit on baseline runs surprised me (39.5% mean). That's DeepSeek's *cross-session* prompt cache: the same system prompt ran many times across modes and runs warmed the server-side cache. Real cross-session evidence that Cache-First's value isn't only per-session.",
-    "- 5-subgoals cap still hit uniformly. `HarvestOptions.maxItems` default is 5; harvest is truncating. Moot unless we find a setting where that matters.",
-    "",
-  ].join("\n");
-}
-
-function pct(num: number, denom: number): string {
-  if (denom === 0) return "—";
-  return `${((num / denom) * 100).toFixed(0)}%`;
-}
-
-function pct1(x: number): string {
-  return `${(x * 100).toFixed(1)}%`;
-}
-
-function truncate(s: string, n: number): string {
-  return s.length > n ? `${s.slice(0, n)}…` : s;
-}
-
-async function main(): Promise<void> {
-  const args = parseArgs(process.argv.slice(2));
-  const raw = readFileSync(args.input, "utf8");
-  const report = JSON.parse(raw) as HarvestBenchReport;
-  const md = renderReport(report) + renderFindings(report);
-  writeFileSync(args.outPath, md, "utf8");
-  console.log(`wrote ${args.outPath} (${report.results.length} runs)`);
-}
-
-function isMain(): boolean {
-  const entry = process.argv[1];
-  if (!entry) return false;
-  return import.meta.url === pathToFileURL(entry).href;
-}
-
-if (isMain()) {
-  main().catch((err) => {
-    console.error(err);
-    process.exit(1);
-  });
-}
-
-// Suppress unused import warning — kept in scope so ALL_MODES order matches renderer iteration.
-export type { HarvestMode };

benchmarks/harvest/results.json

@@ -1,305 +0,0 @@
-{
-  "meta": {
-    "date": "2026-04-21T16:44:21.011Z",
-    "repeatsPerTask": 1,
-    "taskCount": 6,
-    "modesRun": [
-      "baseline",
-      "reasoner",
-      "reasoner-harvest"
-    ],
-    "reasonixVersion": "0.2.2"
-  },
-  "results": [
-    {
-      "taskId": "mod7_list",
-      "mode": "baseline",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "Alright, let's go step-by-step.\n\n---\n\n## **Step 1: Problem restatement**\nWe want positive integers \\( n \\leq 100 \\) such that  \n\\[\nn^2 + n + 1 \\equiv 0 \\pmod{7}.\n\\]\n\n---\n\n## **Step 2: Try residues modulo 7**\nLet \\( n \\equiv r \\pmod{7} \\), where \\( r \\in \\{0, 1, 2, 3, 4, 5, 6\\} \\).\n\nWe compute \\( r^2 + r + 1 \\mod 7 \\):\n\n- \\( r = 0 \\): \\( 0 + 0 + 1 = 1 \\) → not divisible by 7.\n- \\( r = 1 \\): \\( 1 + 1 + 1 = 3 \\) → no.\n- \\( r = 2 \\): \\( 4 + 2 + 1 = 7 \\equiv 0 \\) → yes.\n- \\( r = 3 \\): \\( 9 + 3 + 1 = 13 \\equiv 6 \\) → no.\n- \\( r = 4 \\): \\( 16 + 4 + 1 = 21 \\equiv 0 \\) → yes.\n- \\( r = 5 \\): \\( 25 + 5 + 1 = 31 \\equiv 3 \\) → no.\n- \\( r = 6 \\): \\( 36 + 6 + 1 = 43 \\equiv 1 \\) → no.\n\nSo \\( n \\equiv 2 \\pmod{7} \\) or \\( n \\equiv 4 \\pmod{7} \\).\n\n---\n\n## **Step 3: General form**\n\\[\nn \\equiv 2 \\pmod{7} \\quad \\text{or} \\quad n \\equiv 4 \\pmod{7}.\n\\]\n\nThat means \\( n = 7k + 2 \\) or \\( n = 7k + 4 \\) for some integer \\( k \\ge 0 \\).\n\n---\n\n## **Step 4: Positive integers \\( n \\leq 100 \\)**\n**Case 1:** \\( n = 7k + 2 \\), \\( n \\leq 100 \\), \\( k \\ge 0 \\).\n\n\\( 7k + 2 \\leq 100 \\) → \\( 7k \\leq 98 \\) → \\( k \\leq 14 \\).\n\nSo \\( k = 0, 1, 2, \\dots, 14 \\) gives \\( n = 2, 9, 16, \\dots, 100 \\).\n\nCheck \\( n=100 \\): \\( 7 \\times 14 + 2 = 98 + 2 = 100 \\) okay.\n\n---\n\n**Case 2:** \\( n = 7k + 4 \\), \\( n \\leq 100 \\), \\( k \\ge 0 \\).\n\n\\( 7k + 4 \\leq 100 \\) → \\( 7k \\leq 96 \\) → \\( k \\leq 13 \\) (since \\( 7 \\times 13 = 91 \\), \\( 91+4=95 \\), \\( 7\\times14=98 \\) → \\( 98+4=102>100 \\)).\n\nSo \\( k = 0, 1, 2, \\dots, 13 \\) gives \\( n = 4, 11, 18, \\dots, 95 \\).\n\n---\n\n## **Step 5: List all such \\( n \\leq 100 \\)**\nFrom case 1: \\( 2, 9, 16, 23, 30, 37, 44, 51, 58, 65, 72, 79, 86, 93, 100 \\).\n\nFrom case 2: \\( 4, 11, 18, 25, 32, 39, 46, 53, 60, 67, 74, 81, 88, 95 \\).\n\nCombine and sort:\n\n\\[\n2, 4, 9, 11, 16, 18, 23, 25, 30, 32, 37, 39, 44, 46, 51, 53, 58, 60, 65, 67, 72, 74, 79, 81, 86, 88, 93, 95, 100.\n\\]\n\n---\n\n## **Step 6: Check count**\nEach sequence has 15 and 14 terms respectively, total \\( 15 + 14 = 29 \\) numbers.\n\nCheck: \\( n=2 \\) works? \\( 4+2+1=7 \\) yes. \\( n=4 \\) works? \\( 16+4+1=21 \\) yes. \\( n=100 \\) works? \\( 10000+100+1=10101 \\), divide by 7: \\( 10101/7 = 1443 \\) yes.\n\n---\n\n**Final answer:**\n\\[\n\\boxed{2, 4, 9, 11, 16, 18, 23, 25, 30, 32, 37, 39, 44, 46, 51, 53, 58, 60, 65, 67, 72, 74, 79, 81, 86, 88, 93, 95, 100}\n\\]\n\n---\n\nAnswer: 2, 4, 9, 11, 16, 18, 23, 25, 30, 32, 37, 39, 44, 46, 51, 53, 58, 60, 65, 67, 72, 74, 79, 81, 86, 88, 93, 95, 100",
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-      "taskId": "mod7_list",
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-      "finalAgentMessage": "The condition \\(n^2 + n + 1\\) divisible by 7 is equivalent to \\(n^2 + n + 1 \\equiv 0 \\pmod{7}\\). Testing residues modulo 7:\n\n- \\(n \\equiv 0: 0+0+1 \\equiv 1\\)  \n- \\(n \\equiv 1: 1+1+1 \\equiv 3\\)  \n- \\(n \\equiv 2: 4+2+1 \\equiv 7 \\equiv 0\\)  \n- \\(n \\equiv 3: 9+3+1 \\equiv 13 \\equiv 6\\)  \n- \\(n \\equiv 4: 16+4+1 \\equiv 21 \\equiv 0\\)  \n- \\(n \\equiv 5: 25+5+1 \\equiv 31 \\equiv 3\\)  \n- \\(n \\equiv 6: 36+6+1 \\equiv 43 \\equiv 1\\)\n\nThus, \\(n \\equiv 2\\) or \\(n \\equiv 4 \\pmod{7}\\) are the solutions modulo 7. For positive integers \\(n \\leq 100\\), we list all numbers congruent to 2 or 4 modulo 7 in increasing order.\n\nAnswer: 2, 4, 9, 11, 16, 18, 23, 25, 30, 32, 37, 39, 44, 46, 51, 53, 58, 60, 65, 67, 72, 74, 79, 81, 86, 88, 93, 95, 100",
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-      "finalAgentMessage": "The congruence \\(n^2 + n + 1 \\equiv 0 \\pmod{7}\\) is solved by testing residues modulo 7. The solutions are \\(n \\equiv 2\\) and \\(n \\equiv 4 \\pmod{7}\\). For positive integers \\(n \\le 100\\), these yield \\(n = 7k + 2\\) with \\(k = 0, 1, \\dots, 14\\) and \\(n = 7k + 4\\) with \\(k = 0, 1, \\dots, 13\\).\n\nAnswer: 2, 4, 9, 11, 16, 18, 23, 25, 30, 32, 37, 39, 44, 46, 51, 53, 58, 60, 65, 67, 72, 74, 79, 81, 86, 88, 93, 95, 100",
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-      "taskId": "flips_until_3heads",
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-      "finalAgentMessage": "Alright, let's reason through this step-by-step.\n\n---\n\n## **Step 1: Define states**\nLet’s define states based on how many consecutive heads we have at the moment.\n\n- \\( E_0 \\): Expected flips to reach 3 heads in a row starting from 0 consecutive heads (or just starting, or after a tail).\n- \\( E_1 \\): Expected flips to reach 3 heads in a row starting from 1 consecutive head.\n- \\( E_2 \\): Expected flips to reach 3 heads in a row starting from 2 consecutive heads.\n\nWe want \\( E_0 \\).\n\n---\n\n## **Step 2: Transition equations**\nFrom \\( E_0 \\):\n- Flip H (prob \\( \\frac12 \\)) → go to state \\( E_1 \\), 1 flip used.\n- Flip T (prob \\( \\frac12 \\)) → stay in \\( E_0 \\), 1 flip used.\n\nSo:\n\\[\nE_0 = \\frac12 (1 + E_1) + \\frac12 (1 + E_0)\n\\]\n\n---\n\nFrom \\( E_1 \\) (already have 1 head):\n- Flip H (prob \\( \\frac12 \\)) → go to state \\( E_2 \\), 1 flip used.\n- Flip T (prob \\( \\frac12 \\)) → go to state \\( E_0 \\), 1 flip used.\n\nSo:\n\\[\nE_1 = \\frac12 (1 + E_2) + \\frac12 (1 + E_0)\n\\]\n\n---\n\nFrom \\( E_2 \\) (already have 2 heads):\n- Flip H (prob \\( \\frac12 \\)) → done (3 heads in a row), 1 flip used.\n- Flip T (prob \\( \\frac12 \\)) → go to state \\( E_0 \\), 1 flip used.\n\nSo:\n\\[\nE_2 = \\frac12 (1 + 0) + \\frac12 (1 + E_0)\n\\]\n\\[\nE_2 = \\frac12 \\cdot 1 + \\frac12 (1 + E_0) \\quad\\text{(Wait, careful:)}\n\\]\nActually:  \nIf H: \\( 1 \\) flip and done.  \nIf T: \\( 1 \\) flip and then \\( E_0 \\) more.\n\nSo:\n\\[\nE_2 = \\frac12 \\cdot 1 + \\frac12 (1 + E_0)\n\\]\nCheck:  \nH: 1 flip → total 1, done. Contribution: \\( \\frac12 \\times 1 \\).  \nT: 1 flip + \\( E_0 \\) more → total \\( 1 + E_0 \\). Contribution: \\( \\frac12 \\times (1 + E_0) \\).\n\nYes:\n\\[\nE_2 = \\frac12 \\cdot 1 + \\frac12 (1 + E_0) = \\frac12 + \\frac12 + \\frac12 E_0 = 1 + \\frac{E_0}{2}.\n\\]\n\n---\n\n## **Step 3: Solve system**\nWe have:\n\n(1) \\( E_0 = \\frac12 (1 + E_1) + \\frac12 (1 + E_0) \\)  \nSimplify: \\( E_0 = 1 + \\frac12 E_1 + \\frac12 E_0 \\)  \nMultiply by 2: \\( 2E_0 = 2 + E_1 + E_0 \\)  \nSo \\( E_0 - E_1 = 2 \\) … (Eq A)\n\n---\n\n(2) \\( E_1 = \\frac12 (1 + E_2) + \\frac12 (1 + E_0) \\)  \nSimplify: \\( E_1 = 1 + \\frac12 E_2 + \\frac12 E_0 \\) … (Eq B)\n\n---\n\n(3) \\( E_2 = 1 + \\frac12 E_0 \\) … (Eq C)\n\n---\n\nFrom Eq C into Eq B:\n\\[\nE_1 = 1 + \\frac12 \\left( 1 + \\frac12 E_0 \\right) + \\frac12 E_0\n\\]\n\\[\nE_1 = 1 + \\frac12 + \\frac14 E_0 + \\frac12 E_0\n\\]\n\\[\nE_1 = \\frac32 + \\frac34 E_0\n\\]\n\n---\n\nFrom Eq A: \\( E_0 - E_1 = 2 \\)  \nSubstitute \\( E_1 \\):\n\\[\nE_0 - \\left( \\frac32 + \\frac34 E_0 \\right) = 2\n\\]\n\\[\nE_0 - \\frac32 - \\frac34 E_0 = 2\n\\]\n\\[\n\\frac14 E_0 - \\frac32 = 2\n\\]\n\\[\n\\frac14 E_0 = 2 + \\frac32 = \\frac72\n\\]\n\\[\nE_0 = 14\n\\]\n\n---\n\n## **Step 4: Conclusion**\nThe expected number of flips until we get 3 heads in a row is \\( 14 \\).\n\n---\n\n**Answer:** 14",
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-      "finalAgentMessage": "The expected number of flips required to get three consecutive heads is 14, derived from solving the system of linear equations for the Markov chain states representing the current streak of heads.\n\nAnswer: 14",
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-      "finalAgentMessage": "The expected number of flips until three consecutive heads appear is 14.\n\nAnswer: 14",
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-      "taskId": "three_hats",
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-      "finalAgentMessage": "Let's break this down step by step.\n\n---\n\n**Step 1: Understanding the setup**  \nThree people: A (first), B (second), C (third).  \nEach hat is red (R) or blue (B).  \nThey know: at least one hat is red.  \nEach sees the other two hats, not their own.  \nThey are asked in order: \"Do you know your hat color?\"  \nA answers no, B answers no, C answers yes.  \nWe want C’s hat color.\n\n---\n\n**Step 2: From A’s perspective when asked**  \nA sees B and C.  \nIf A had seen two blue hats, then A would know: \"At least one red hat means my hat must be red.\"  \nSo A says \"no\" → A did **not** see two blue hats.  \nThus A sees at least one red hat on {B, C}.\n\nPossible cases for what A sees (B, C):  \n(R, R), (R, B), (B, R) — all have at least one red.\n\n---\n\n**Step 3: B’s reasoning when asked**  \nB hears A say \"no\".  \nB sees A and C.  \n\nLet’s consider B’s possible deductions from A’s \"no\":  \nB knows: If A had seen two blues, A would have said yes. Since A said no, A saw at least one red among B and C.  \nBut B sees A and C.  \n\nFrom B’s viewpoint:  \n- If B saw C with blue and A with blue, then B would know: \"A saw me and C both blue → impossible because A said no.\" But B doesn’t see that because if B saw A blue and C blue, then B would know his own hat must be red (since at least one red total). But then B would answer yes.  \nSo B’s \"no\" means B did **not** see A and C both blue.  \n\nAlso, B considers: Could my hat be blue? Let’s check:  \nSuppose B sees A red, C blue. Then B thinks: \"If my hat were blue, then A would have seen (B blue, C blue) → A would have said yes. But A said no, so my hat cannot be blue.\"  \nSo if B saw (A red, C blue), B would deduce: \"My hat must be red.\" Then B would answer yes.  \nBut B said no → so B did **not** see (A red, C blue).\n\nSimilarly, if B saw (A blue, C red):  \nThen B thinks: \"If my hat were blue, then A would have seen (B blue, C red) → that’s fine (A sees one red on C), so A would still say no. If my hat were red, then A would see (B red, C red) → A would still say no. So I don’t know.\" That’s consistent with B saying no.  \n\nIf B saw (A red, C red):  \nThen B thinks: \"If my hat were blue, A sees (B blue, C red) → A says no. If my hat were red, A sees (B red, C red) → A says no. So I don’t know.\" That’s also consistent with B saying no.\n\nSo B says no in cases:  \nB sees (A blue, C red) or (A red, C red).  \nB would say yes if B saw (A red, C blue) — but that didn’t happen.  \n\n---\n\n**Step 4: C’s reasoning**  \nC hears A says no, B says no.  \nC sees A and B.  \n\nFrom C’s viewpoint:  \nLet’s list all possible (A, B, C) hat colorings with at least one red, consistent with A’s \"no\" (which we already incorporated: A sees at least one red on B/C) and B’s \"no\" (meaning B didn’t see A red, C blue — because that would make B know).\n\nPossible cases for (A, B) that C could see:  \n\n1. C sees (A blue, B red):  \n   Then C thinks:  \n   - If C were blue: (A blue, B red, C blue) → A sees (B red, C blue) → A says no. B sees (A blue, C blue) → B sees two blues? Wait, B sees A blue, C blue → then B knows his own hat is red (since at least one red total) → B would say yes. But B said no → contradiction. So C cannot be blue.  \n   So C must be red.  \n\n2. C sees (A red, B blue):  \n   Then C thinks:  \n   - If C were blue: (A red, B blue, C blue) → A sees (B blue, C blue) → A would say yes (since at least one red total means A’s hat must be red). But A said no → contradiction. So C cannot be blue.  \n   So C must be red.  \n\n3. C sees (A red, B red):  \n   Then C thinks:  \n   - If C were blue: (A red, B red, C blue) → A sees (B red, C blue) → A says no. B sees (A red, C blue) → B sees A red, C blue → earlier we said: If B sees A red, C blue, then B would deduce his own hat is red (reasoning: if B were blue, A would have seen two blues and said yes, but A said no, so B can’t be blue) → so B would say yes. But B actually said no → contradiction. So C cannot be blue.  \n   - If C were red: (A red, B red, C red) → A sees (B red, C red) → A says no. B sees (A red, C red) → B says no. Works fine.  \n\nSo in all cases C sees for (A, B), C can deduce C’s hat is **red** because assuming C is blue leads to contradiction with B’s \"no\" (in cases 1 and 3) or with A’s \"no\" (in case 2).\n\n---\n\n**Step 5: Conclusion**  \nC answers yes, and C’s hat must be red.\n\n---\n\nAnswer: red",
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-      "finalAgentMessage": "Answer: red",
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-      "finalAgentMessage": "The third person deduces their hat color based on the previous responses. Since the first two answer \"no,\" it implies they each see at least one red hat and cannot determine their own color. Specifically, the second person's \"no\" indicates they see the third person's hat as red; otherwise, they would have known their own hat color. Therefore, the third person's hat must be red.\n\nAnswer: red",
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-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "Alright, let's go step-by-step.\n\n---\n\n**Step 1: Understanding the problem**\n\nWe want the smallest composite integer \\( n > 1 \\) such that\n\n\\[\n2^n \\equiv 2 \\pmod{n}.\n\\]\n\nEquivalently, \\( 2^{n-1} \\equiv 1 \\pmod{n} \\) for composite \\( n \\).\n\nThis means \\( n \\) is a **Fermat pseudoprime to base 2**.\n\nWe check composite numbers starting from the smallest.\n\n---\n\n**Step 2: Check small composites**\n\n- \\( n = 4 \\): composite.  \n\\( 2^4 = 16 \\), \\( 16 \\mod 4 = 0 \\), not \\( 2 \\). So \\( 2^4 \\equiv 0 \\not\\equiv 2 \\pmod{4} \\). Fails.\n\n- \\( n = 6 \\): composite.  \n\\( 2^6 = 64 \\), \\( 64 \\mod 6 = 4 \\), not \\( 2 \\). Fails.\n\n- \\( n = 8 \\): composite.  \n\\( 2^8 = 256 \\), \\( 256 \\mod 8 = 0 \\), not \\( 2 \\). Fails.\n\n- \\( n = 9 \\): composite.  \n\\( 2^9 = 512 \\), \\( 512 \\mod 9 \\):  \n\\( 512 \\div 9 \\), \\( 9 \\times 56 = 504 \\), remainder \\( 8 \\), not \\( 2 \\). Fails.\n\n- \\( n = 10 \\): composite.  \n\\( 2^{10} = 1024 \\), \\( 1024 \\mod 10 = 4 \\), not \\( 2 \\). Fails.\n\n---\n\n**Step 3: Try n = 15**\n\n\\( n = 15 \\): composite.  \n\\( 2^{15} = 32768 \\).  \nCheck mod 15:  \nWe can use mod arithmetic:  \n\\( 2^4 = 16 \\equiv 1 \\pmod{15} \\)?? Wait, check: \\( 16 \\mod 15 = 1 \\), yes.  \nSo \\( 2^{15} = (2^4)^3 \\times 2^3 = 1^3 \\times 8 = 8 \\pmod{15} \\).  \nSo \\( 2^{15} \\equiv 8 \\not\\equiv 2 \\pmod{15} \\). Fails.\n\n---\n\n**Step 4: Try n = 21**\n\n\\( n = 21 \\): composite.  \nMod 21:  \n\\( 2^6 = 64 \\equiv 1 \\pmod{21} \\)? Check: \\( 64 \\div 21 = 3 \\times 21 = 63 \\), remainder 1, yes.  \nSo \\( 2^{21} = (2^6)^3 \\times 2^3 \\equiv 1^3 \\times 8 = 8 \\pmod{21} \\). Not 2. Fails.\n\n---\n\n**Step 5: Try n = 22**\n\n\\( n = 22 \\): composite.  \nUse mod 22:  \nEuler’s totient not needed, just check order:  \n\\( 2^5 = 32 \\equiv 10 \\pmod{22} \\)  \n\\( 2^{10} = (2^5)^2 \\equiv 10^2 = 100 \\equiv 12 \\pmod{22} \\)  \n\\( 2^{11} \\equiv 24 \\equiv 2 \\pmod{22} \\)  \nSo \\( 2^{22} = (2^{11})^2 \\equiv 2^2 = 4 \\pmod{22} \\). Not 2. Fails.\n\n---\n\n**Step 6: Try n = 25**\n\n\\( n = 25 \\): composite.  \nCheck mod 25:  \n\\( 2^{10} = 1024 \\equiv 24 \\pmod{25} \\) (since \\( 1000 \\equiv 0 \\), \\( 24 \\equiv -1 \\))  \nActually check: \\( 1024 - 1000 = 24 \\), yes \\( 24 \\equiv -1 \\).  \nSo \\( 2^{20} \\equiv 1 \\pmod{25} \\).  \nThus \\( 2^{25} = 2^{20} \\times 2^5 \\equiv 1 \\times 32 = 7 \\pmod{25} \\). Not 2. Fails.\n\n---\n\n**Step 7: Known smallest base-2 Fermat pseudoprime**\n\nFrom known number theory facts:  \nThe smallest Fermat pseudoprime to base 2 is \\( n = 341 \\).  \nBut let's check smaller ones just in case I’m skipping one.\n\n---\n\n**Step 8: Try n = 91**\n\n91 = 7 × 13.  \nCheck mod 7: \\( 2^{91} \\equiv (2^6)^{15} \\times 2^1 \\equiv 1^{15} \\times 2 = 2 \\pmod{7} \\).  \nCheck mod 13: \\( 2^{12} \\equiv 1 \\pmod{13} \\),  \n\\( 91 = 12 \\times 7 + 7 \\), so \\( 2^{91} \\equiv 2^7 = 128 \\equiv 11 \\pmod{13} \\).  \nFor \\( 2^{91} \\equiv 2 \\pmod{91} \\), we need \\( 2^{91} \\equiv 2 \\) mod 7 and mod 13.  \nMod 13 we got 11, not 2. So fails.\n\n---\n\n**Step 9: Try n = 341**\n\n341 = 11 × 31.  \nCheck mod 11: \\( 2^{10} \\equiv 1 \\pmod{11} \\),  \n\\( 341 = 10 \\times 34 + 1 \\), so \\( 2^{341} \\equiv 2^1 = 2 \\pmod{11} \\). Good.  \nCheck mod 31: \\( 2^5 = 32 \\equiv 1 \\pmod{31} \\),  \n\\( 341 = 5 \\times 68 + 1 \\), so \\( 2^{341} \\equiv 2^1 = 2 \\pmod{31} \\).  \nSo \\( 2^{341} \\equiv 2 \\) mod 11 and mod 31, hence mod 341.  \nThus \\( 341 \\) works.\n\n---\n\n**Step 10: Check smaller than 341**\n\nKnown list: 341 is smallest. Let’s check a candidate like 121 = 11^2:  \n\\( 2^{121} \\mod 121 \\):  \nMod 11: \\( 2^{10} \\equiv 1 \\), \\( 121 = 10 \\times 12 + 1 \\), so \\( 2^{121} \\equiv 2 \\pmod{11} \\).  \nBut for modulus 121, need more:  \nActually, \\( 2^{110} \\equiv 1 \\pmod{121} \\) by Euler’s theorem? Not exactly, but known: 121 is not a pseudoprime base 2. Quick check:  \n\\( 2^{121} - 2 \\) divisible by 121? Probably not. Let’s skip detailed check; known fact is 341 is smallest.\n\n---\n\n**Step 11: Verify no smaller composite works**\n\nFrom known sequence A001567:  \nFirst few base-2 Fermat pseudoprimes: 341, 561, 645, 1105, …  \nSo smallest is 341.\n\n---\n\n**Step 12: Conclusion**\n\nThe smallest composite \\( n > 1 \\) with \\( 2^n \\equiv 2 \\pmod{n} \\) is \\( n = 341 \\).\n\n---\n\n**Answer:** 341",
-      "turns": 1,
-      "cacheHitRatio": 0,
-      "costUsd": 0.0018940500000000002,
-      "claudeEquivalentUsd": 0.02577,
-      "harvestedTurns": 0,
-      "totalSubgoals": 0,
-      "totalUncertainties": 0,
-      "totalHypotheses": 0,
-      "totalRejectedPaths": 0
-    },
-    {
-      "taskId": "pseudoprime_base2",
-      "mode": "reasoner",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "The smallest composite integer \\(n > 1\\) satisfying \\(2^n \\equiv 2 \\pmod{n}\\) is \\(n = 341\\). This is composite (\\(341 = 11 \\times 31\\)), and it satisfies the congruence because \\(2^{341} \\equiv 2 \\pmod{11}\\) and \\(2^{341} \\equiv 2 \\pmod{31}\\) by Fermat's little theorem, implying \\(2^{341} \\equiv 2 \\pmod{341}\\). All smaller composite integers (e.g., 4, 6, 8, 9, 10, 15, 21) fail to satisfy the condition.\n\nAnswer: 341",
-      "turns": 1,
-      "cacheHitRatio": 0.7529411764705882,
-      "costUsd": 0.0031281200000000003,
-      "claudeEquivalentUsd": 0.02154,
-      "harvestedTurns": 0,
-      "totalSubgoals": 0,
-      "totalUncertainties": 0,
-      "totalHypotheses": 0,
-      "totalRejectedPaths": 0
-    },
-    {
-      "taskId": "pseudoprime_base2",
-      "mode": "reasoner-harvest",
-      "repeat": 1,
-      "verdict": "fail",
-      "checkNote": "This operation was aborted",
-      "finalAgentMessage": "",
-      "turns": 0,
-      "cacheHitRatio": 0,
-      "costUsd": 0,
-      "claudeEquivalentUsd": 0,
-      "harvestedTurns": 0,
-      "totalSubgoals": 0,
-      "totalUncertainties": 0,
-      "totalHypotheses": 0,
-      "totalRejectedPaths": 0,
-      "errorMessage": "This operation was aborted"
-    },
-    {
-      "taskId": "derangements_d7",
-      "mode": "baseline",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "Alright, let's go step-by-step.\n\n---\n\n**Step 1: Understanding the problem**\n\nWe want the number of permutations of \\(\\{1, 2, 3, 4, 5, 6, 7\\}\\) with **no fixed points**.  \nA fixed point means \\(\\pi(i) = i\\) for some \\(i\\).  \nA permutation with no fixed points is called a **derangement**.  \nThe number of derangements of \\(n\\) elements is denoted \\(D_n\\) or \\(!n\\).\n\n---\n\n**Step 2: Formula for derangements**\n\nThe formula for \\(D_n\\) is:\n\n\\[\nD_n = n! \\sum_{k=0}^{n} \\frac{(-1)^k}{k!}\n\\]\n\nFor \\(n=7\\):\n\n\\[\nD_7 = 7! \\left( \\frac{1}{0!} - \\frac{1}{1!} + \\frac{1}{2!} - \\frac{1}{3!} + \\frac{1}{4!} - \\frac{1}{5!} + \\frac{1}{6!} - \\frac{1}{7!} \\right)\n\\]\n\n---\n\n**Step 3: Compute step-by-step**\n\nFirst, \\(7! = 5040\\).\n\nNow compute the sum:\n\n\\[\n\\sum_{k=0}^{7} \\frac{(-1)^k}{k!} \n= 1 - 1 + \\frac{1}{2} - \\frac{1}{6} + \\frac{1}{24} - \\frac{1}{120} + \\frac{1}{720} - \\frac{1}{5040}\n\\]\n\nLet's compute term-by-term:\n\n- \\(1 - 1 = 0\\)\n- \\(0 + 0.5 = 0.5\\)\n- \\(0.5 - \\frac{1}{6} \\approx 0.5 - 0.1666667 = 0.3333333\\)\n- \\(0.3333333 + \\frac{1}{24} \\approx 0.3333333 + 0.0416667 = 0.375\\)\n- \\(0.375 - \\frac{1}{120} \\approx 0.375 - 0.0083333 = 0.3666667\\)\n- \\(0.3666667 + \\frac{1}{720} \\approx 0.3666667 + 0.0013889 = 0.3680556\\)\n- \\(0.3680556 - \\frac{1}{5040} \\approx 0.3680556 - 0.0001984 = 0.3678572\\)\n\nSo the sum is approximately \\(0.367857142857...\\)\n\n---\n\n**Step 4: Multiply by \\(7!\\)**\n\n\\[\nD_7 = 5040 \\times 0.367857142857\\ldots\n\\]\n\nLet's compute exactly using fractions:\n\n\\[\n\\sum_{k=0}^{7} \\frac{(-1)^k}{k!} \n= \\frac{1}{2!} - \\frac{1}{3!} + \\frac{1}{4!} - \\frac{1}{5!} + \\frac{1}{6!} - \\frac{1}{7!}\n\\]\n\nWrite with common denominator \\(7! = 5040\\):\n\n- \\(\\frac{1}{2!} = \\frac{2520}{5040}\\)\n- \\(\\frac{1}{3!} = \\frac{840}{5040}\\)\n- \\(\\frac{1}{4!} = \\frac{210}{5040}\\)\n- \\(\\frac{1}{5!} = \\frac{42}{5040}\\)\n- \\(\\frac{1}{6!} = \\frac{7}{5040}\\)\n- \\(\\frac{1}{7!} = \\frac{1}{5040}\\)\n\nNow alternate signs:\n\n\\[\n\\left( \\frac{2520}{5040} - \\frac{840}{5040} \\right) \n= \\frac{1680}{5040}\n\\]\n\\[\n\\frac{1680}{5040} + \\frac{210}{5040} = \\frac{1890}{5040}\n\\]\n\\[\n\\frac{1890}{5040} - \\frac{42}{5040} = \\frac{1848}{5040}\n\\]\n\\[\n\\frac{1848}{5040} + \\frac{7}{5040} = \\frac{1855}{5040}\n\\]\n\\[\n\\frac{1855}{5040} - \\frac{1}{5040} = \\frac{1854}{5040}\n\\]\n\nSo the sum is \\(\\frac{1854}{5040}\\).\n\n---\n\n**Step 5: Multiply by \\(7!\\)**\n\n\\[\nD_7 = 5040 \\times \\frac{1854}{5040} = 1854\n\\]\n\n---\n\n**Step 6: Quick check with known derangement numbers**\n\nKnown small derangements:  \n\\(D_1 = 0, D_2 = 1, D_3 = 2, D_4 = 9, D_5 = 44, D_6 = 265, D_7 = 1854\\).  \nYes, matches known sequence.\n\n---\n\n**Final answer:**\n\nAnswer: 1854",
-      "turns": 1,
-      "cacheHitRatio": 0,
-      "costUsd": 0.00127253,
-      "claudeEquivalentUsd": 0.017292,
-      "harvestedTurns": 0,
-      "totalSubgoals": 0,
-      "totalUncertainties": 0,
-      "totalHypotheses": 0,
-      "totalRejectedPaths": 0
-    },
-    {
-      "taskId": "derangements_d7",
-      "mode": "reasoner",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "The number of derangements of \\(n\\) distinct objects, denoted \\(D_n\\), counts permutations with no fixed points. For \\(n = 7\\), this can be computed using the recurrence \\(D_n = (n-1)(D_{n-1} + D_{n-2})\\) with initial values \\(D_1 = 0\\) and \\(D_2 = 1\\).  \nThus:  \n\\(D_3 = 2(1+0) = 2\\),  \n\\(D_4 = 3(2+1) = 9\\),  \n\\(D_5 = 4(9+2) = 44\\),  \n\\(D_6 = 5(44+9) = 265\\),  \n\\(D_7 = 6(265+44) = 1854\\).\n\nAnswer: 1854",
-      "turns": 1,
-      "cacheHitRatio": 0.7191011235955056,
-      "costUsd": 0.00349167,
-      "claudeEquivalentUsd": 0.024027,
-      "harvestedTurns": 0,
-      "totalSubgoals": 0,
-      "totalUncertainties": 0,
-      "totalHypotheses": 0,
-      "totalRejectedPaths": 0
-    },
-    {
-      "taskId": "derangements_d7",
-      "mode": "reasoner-harvest",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "The number of derangements of \\(n\\) elements, denoted \\(D_n\\), counts permutations with no fixed points. For \\(n=7\\), this can be computed using the recurrence \\(D_n = (n-1)(D_{n-1} + D_{n-2})\\) with initial values \\(D_0 = 1\\) and \\(D_1 = 0\\). Applying the recurrence yields \\(D_2 = 1\\), \\(D_3 = 2\\), \\(D_4 = 9\\), \\(D_5 = 44\\), \\(D_6 = 265\\), and finally \\(D_7 = 6 \\times (265 + 44) = 1854\\).\n\nAnswer: 1854",
-      "turns": 1,
-      "cacheHitRatio": 0.7191011235955056,
-      "costUsd": 0.0028434299999999997,
-      "claudeEquivalentUsd": 0.019587,
-      "harvestedTurns": 1,
-      "totalSubgoals": 3,
-      "totalUncertainties": 2,
-      "totalHypotheses": 2,
-      "totalRejectedPaths": 2
-    },
-    {
-      "taskId": "euler_quadratic_break",
-      "mode": "baseline",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "Let’s check \\( f(n) = n^2 + n + 41 \\) for small \\( n \\):\n\n- \\( n = 0 \\): \\( f(0) = 41 \\) (prime)  \n- \\( n = 1 \\): \\( f(1) = 1 + 1 + 41 = 43 \\) (prime)  \n- \\( n = 2 \\): \\( f(2) = 4 + 2 + 41 = 47 \\) (prime)  \n- \\( n = 3 \\): \\( f(3) = 9 + 3 + 41 = 53 \\) (prime)  \n- \\( n = 4 \\): \\( f(4) = 16 + 4 + 41 = 61 \\) (prime)  \n- \\( n = 5 \\): \\( f(5) = 25 + 5 + 41 = 71 \\) (prime)  \n- \\( n = 6 \\): \\( f(6) = 36 + 6 + 41 = 83 \\) (prime)  \n- \\( n = 7 \\): \\( f(7) = 49 + 7 + 41 = 97 \\) (prime)  \n- \\( n = 8 \\): \\( f(8) = 64 + 8 + 41 = 113 \\) (prime)  \n- \\( n = 9 \\): \\( f(9) = 81 + 9 + 41 = 131 \\) (prime)  \n- \\( n = 10 \\): \\( f(10) = 100 + 10 + 41 = 151 \\) (prime)  \n\nWe can keep going, but the first known counterexample for this famous Euler polynomial is \\( n = 40 \\), because  \n\\[\nf(40) = 40^2 + 40 + 41 = 1600 + 40 + 41 = 1681.\n\\]  \nCheck if \\( 1681 \\) is prime:  \n\\( 1681 = 41^2 \\) (since \\( 41 \\times 41 = 1681 \\)), so it’s composite.\n\nBut wait — let’s check if there’s a smaller \\( n \\) where \\( f(n) \\) is composite.  \nWe can test \\( n = 41 \\):  \n\\( f(41) = 41^2 + 41 + 41 = 1681 + 82 = 1763 \\), which is \\( 41 \\times 43 \\) (since \\( 1763/41 = 43 \\)), so composite. But \\( n = 41 \\) is larger than \\( n = 40 \\).\n\nCheck \\( n = 39 \\): \\( f(39) = 1521 + 39 + 41 = 1601 \\). Test divisibility: not divisible by primes up to \\( \\sqrt{1601} \\approx 40 \\), seems prime.  \n\nCheck \\( n = 40 \\) is indeed the first composite? Let’s check \\( n = 1 \\) to \\( 39 \\) quickly for a smaller counterexample:  \nWe can note \\( f(n) = n(n+1) + 41 \\). If \\( 41 \\mid f(n) \\), then \\( 41 \\mid n(n+1) \\).  \nThat happens when \\( n \\equiv 0 \\pmod{41} \\) or \\( n \\equiv 40 \\pmod{41} \\).  \nThe smallest positive such \\( n \\) is \\( n = 40 \\) (since \\( n=41 \\) is larger).  \nSo for \\( n = 40 \\), \\( f(40) = 40 \\times 41 + 41 = 41 \\times 41 \\) is composite.  \n\nCheck \\( n = 0 \\) to \\( 39 \\): no multiple of 41 except \\( n=0 \\) (which gives 41, prime). So \\( n=40 \\) is indeed the first nonnegative integer where \\( f(n) \\) is composite.\n\nThus smallest \\( n \\) is \\( 40 \\), \\( f(40) = 1681 = 41^2 \\).\n\n**Answer:** 40",
-      "turns": 1,
-      "cacheHitRatio": 0,
-      "costUsd": 0.00098535,
-      "claudeEquivalentUsd": 0.013365,
-      "harvestedTurns": 0,
-      "totalSubgoals": 0,
-      "totalUncertainties": 0,
-      "totalHypotheses": 0,
-      "totalRejectedPaths": 0
-    },
-    {
-      "taskId": "euler_quadratic_break",
-      "mode": "reasoner",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "The smallest nonnegative integer \\(n\\) for which \\(f(n) = n^2 + n + 41\\) is composite is \\(n = 40\\). At this value, \\(f(40) = 40^2 + 40 + 41 = 1681 = 41^2\\), which is not prime.\n\nAnswer: 40",
-      "turns": 1,
-      "cacheHitRatio": 0.6095238095238096,
-      "costUsd": 0.0014309199999999998,
-      "claudeEquivalentUsd": 0.0099,
-      "harvestedTurns": 0,
-      "totalSubgoals": 0,
-      "totalUncertainties": 0,
-      "totalHypotheses": 0,
-      "totalRejectedPaths": 0
-    },
-    {
-      "taskId": "euler_quadratic_break",
-      "mode": "reasoner-harvest",
-      "repeat": 1,
-      "verdict": "pass",
-      "finalAgentMessage": "The polynomial \\(f(n) = n^2 + n + 41\\) is known to produce primes for \\(n = 0, 1, 2, \\dots, 39\\). At \\(n = 40\\), we have \\(f(40) = 40^2 + 40 + 41 = 1681\\), and \\(1681 = 41^2\\), which is composite. Therefore, \\(n = 40\\) is the smallest nonnegative integer where \\(f(n)\\) fails to be prime.\n\nAnswer: 40",
-      "turns": 1,
-      "cacheHitRatio": 0.6095238095238096,
-      "costUsd": 0.0025938099999999998,
-      "claudeEquivalentUsd": 0.017865,
-      "harvestedTurns": 1,
-      "totalSubgoals": 3,
-      "totalUncertainties": 2,
-      "totalHypotheses": 3,
-      "totalRejectedPaths": 2
-    }
-  ]
-}

benchmarks/harvest/runner.ts

@@ -1,291 +0,0 @@
-/** Harvest-bench runner — writes results.json. CLI flags + sample invocations in benchmarks/README.md. */
-
-import { type WriteStream, mkdirSync, writeFileSync } from "node:fs";
-import { join } from "node:path";
-import { pathToFileURL } from "node:url";
-import {
-  CacheFirstLoop,
-  DeepSeekClient,
-  ImmutablePrefix,
-  claudeEquivalentCost,
-  loadDotenv,
-} from "../../src/index.js";
-import { openTranscriptFile, recordFromLoopEvent, writeRecord } from "../../src/transcript/log.js";
-import { TASKS } from "./tasks.js";
-import type {
-  HarvestBenchMeta,
-  HarvestBenchReport,
-  HarvestMode,
-  HarvestRunResult,
-  HarvestTask,
-} from "./types.js";
-import { ALL_MODES } from "./types.js";
-
-loadDotenv();
-
-interface CliArgs {
-  taskFilter: string | null;
-  modes: HarvestMode[];
-  repeats: number;
-  outPath: string | null;
-  transcriptsDir: string | null;
-  /** Per-HTTP-call timeout in ms. Default 300_000 (5 min) — reasoner + harvest runs legitimately need this. */
-  timeoutMs: number;
-  dry: boolean;
-  verbose: boolean;
-}
-
-function parseArgs(argv: string[]): CliArgs {
-  const out: CliArgs = {
-    taskFilter: null,
-    modes: [...ALL_MODES],
-    repeats: 1,
-    outPath: null,
-    transcriptsDir: null,
-    timeoutMs: 300_000,
-    dry: false,
-    verbose: false,
-  };
-  for (let i = 0; i < argv.length; i++) {
-    const a = argv[i];
-    if (a === "--task") out.taskFilter = argv[++i] ?? null;
-    else if (a === "--mode") {
-      const v = (argv[++i] ?? "").toLowerCase() as HarvestMode;
-      if ((ALL_MODES as string[]).includes(v)) out.modes = [v];
-    } else if (a === "--repeats") out.repeats = Number.parseInt(argv[++i] ?? "1", 10);
-    else if (a === "--out") out.outPath = argv[++i] ?? null;
-    else if (a === "--transcripts-dir") out.transcriptsDir = argv[++i] ?? null;
-    else if (a === "--timeout") {
-      // Accept seconds for humans, convert to ms internally.
-      const secs = Number.parseInt(argv[++i] ?? "300", 10);
-      if (Number.isFinite(secs) && secs > 0) out.timeoutMs = secs * 1000;
-    } else if (a === "--dry") out.dry = true;
-    else if (a === "--verbose" || a === "-v") out.verbose = true;
-  }
-  return out;
-}
-
-function modelForMode(mode: HarvestMode): string {
-  if (mode === "baseline") return "deepseek-chat";
-  return "deepseek-reasoner";
-}
-
-function harvestForMode(mode: HarvestMode): boolean {
-  return mode === "reasoner-harvest";
-}
-
-async function runOnce(
-  task: HarvestTask,
-  mode: HarvestMode,
-  rep: number,
-  client: DeepSeekClient,
-  transcriptStream: WriteStream | null,
-): Promise<HarvestRunResult> {
-  const model = modelForMode(mode);
-  const harvest = harvestForMode(mode);
-
-  const prefix = new ImmutablePrefix({ system: task.systemPrompt });
-  const loop = new CacheFirstLoop({
-    client,
-    prefix,
-    model,
-    harvest,
-    stream: false,
-  });
-  const prefixHash = prefix.fingerprint;
-
-  let harvestedTurns = 0;
-  let totalSubgoals = 0;
-  let totalUncertainties = 0;
-  let totalHypotheses = 0;
-  let totalRejectedPaths = 0;
-  let finalText = "";
-  let errorMessage: string | undefined;
-
-  if (transcriptStream) {
-    writeRecord(transcriptStream, {
-      ts: new Date().toISOString(),
-      turn: 1,
-      role: "user",
-      content: task.prompt,
-    });
-  }
-
-  try {
-    for await (const ev of loop.step(task.prompt)) {
-      if (transcriptStream && ev.role !== "assistant_delta") {
-        writeRecord(transcriptStream, recordFromLoopEvent(ev, { model, prefixHash }));
-      }
-      if (ev.role === "assistant_final") {
-        finalText = ev.content;
-        if (ev.planState) {
-          if (
-            ev.planState.subgoals.length +
-              ev.planState.hypotheses.length +
-              ev.planState.uncertainties.length +
-              ev.planState.rejectedPaths.length >
-            0
-          ) {
-            harvestedTurns++;
-            totalSubgoals += ev.planState.subgoals.length;
-            totalHypotheses += ev.planState.hypotheses.length;
-            totalUncertainties += ev.planState.uncertainties.length;
-            totalRejectedPaths += ev.planState.rejectedPaths.length;
-          }
-        }
-      } else if (ev.role === "done") {
-        finalText = ev.content || finalText;
-        break;
-      } else if (ev.role === "error") {
-        throw new Error(ev.error ?? "loop error");
-      }
-    }
-  } catch (err) {
-    errorMessage = (err as Error).message;
-  }
-
-  const verdict = errorMessage
-    ? { verdict: "fail" as const, note: errorMessage }
-    : task.check(finalText);
-
-  return {
-    taskId: task.id,
-    mode,
-    repeat: rep + 1,
-    verdict: verdict.verdict,
-    checkNote: verdict.note,
-    finalAgentMessage: finalText,
-    turns: loop.stats.turns.length,
-    cacheHitRatio: loop.stats.aggregateCacheHitRatio,
-    costUsd: loop.stats.totalCost,
-    claudeEquivalentUsd: loop.stats.turns.reduce((s, t) => s + claudeEquivalentCost(t.usage), 0),
-    harvestedTurns,
-    totalSubgoals,
-    totalUncertainties,
-    totalHypotheses,
-    totalRejectedPaths,
-    errorMessage,
-  };
-}
-
-function runDry(args: CliArgs): HarvestBenchReport {
-  const tasks = filterTasks(args.taskFilter);
-  const results: HarvestRunResult[] = [];
-  for (const task of tasks) {
-    // Exercise each checker with a deliberately wrong reply so we know
-    // the wiring is live — not a pass on empty.
-    const sanity = task.check("Answer: this is not the right answer at all");
-    console.log(`[${task.id}] checker exercises ok (sanity verdict=${sanity.verdict})`);
-    for (const mode of args.modes) {
-      results.push({
-        taskId: task.id,
-        mode,
-        repeat: 1,
-        verdict: "inconclusive",
-        checkNote: "dry-run (no model call)",
-        finalAgentMessage: "[dry-run]",
-        turns: 0,
-        cacheHitRatio: 0,
-        costUsd: 0,
-        claudeEquivalentUsd: 0,
-        harvestedTurns: 0,
-        totalSubgoals: 0,
-        totalUncertainties: 0,
-        totalHypotheses: 0,
-        totalRejectedPaths: 0,
-      });
-    }
-  }
-  return { meta: buildMeta(args, tasks.length), results };
-}
-
-function filterTasks(filter: string | null): HarvestTask[] {
-  if (!filter) return TASKS;
-  const t = TASKS.find((x) => x.id === filter);
-  if (!t) throw new Error(`unknown task: ${filter}`);
-  return [t];
-}
-
-function buildMeta(args: CliArgs, taskCount: number): HarvestBenchMeta {
-  return {
-    date: new Date().toISOString(),
-    repeatsPerTask: args.repeats,
-    taskCount,
-    modesRun: args.modes,
-    reasonixVersion: "0.2.2",
-  };
-}
-
-async function main(): Promise<void> {
-  const args = parseArgs(process.argv.slice(2));
-
-  if (args.dry) {
-    const report = runDry(args);
-    writeReport(report, args.outPath);
-    return;
-  }
-
-  const client = new DeepSeekClient({ timeoutMs: args.timeoutMs });
-  const tasks = filterTasks(args.taskFilter);
-
-  if (args.transcriptsDir) mkdirSync(args.transcriptsDir, { recursive: true });
-
-  const results: HarvestRunResult[] = [];
-  for (const task of tasks) {
-    for (let rep = 0; rep < args.repeats; rep++) {
-      for (const mode of args.modes) {
-        let stream: WriteStream | null = null;
-        if (args.transcriptsDir) {
-          const fname = `${task.id}.${mode}.r${rep + 1}.jsonl`;
-          stream = openTranscriptFile(join(args.transcriptsDir, fname), {
-            version: 1,
-            source: `harvest-bench/${mode}`,
-            model: modelForMode(mode),
-            task: task.id,
-            mode,
-            repeat: rep + 1,
-            startedAt: new Date().toISOString(),
-          });
-        }
-        const started = Date.now();
-        let result: HarvestRunResult;
-        try {
-          result = await runOnce(task, mode, rep, client, stream);
-        } finally {
-          stream?.end();
-        }
-        const elapsed = ((Date.now() - started) / 1000).toFixed(1);
-        const note = result.checkNote ? `  ${result.checkNote}` : "";
-        console.log(
-          `[${task.id}/${mode}/r${rep + 1}] verdict=${result.verdict} cache=${(result.cacheHitRatio * 100).toFixed(1)}% cost=$${result.costUsd.toFixed(6)} harvest=${result.harvestedTurns}:${result.totalSubgoals}s/${result.totalUncertainties}u (${elapsed}s)${note}`,
-        );
-        results.push(result);
-      }
-    }
-  }
-
-  const report: HarvestBenchReport = { meta: buildMeta(args, tasks.length), results };
-  writeReport(report, args.outPath);
-}
-
-function writeReport(report: HarvestBenchReport, outPath: string | null): void {
-  const path =
-    outPath ?? `benchmarks/harvest/results-${new Date().toISOString().replace(/[:.]/g, "-")}.json`;
-  writeFileSync(path, `${JSON.stringify(report, null, 2)}\n`, "utf8");
-  console.log(`wrote ${path}`);
-}
-
-function isMain(): boolean {
-  const entry = process.argv[1];
-  if (!entry) return false;
-  return import.meta.url === pathToFileURL(entry).href;
-}
-
-if (isMain()) {
-  main().catch((err) => {
-    console.error(err);
-    process.exit(1);
-  });
-}
-
-export { main as runHarvestBench };

benchmarks/harvest/tasks.ts

@@ -1,143 +0,0 @@
-/** Seed reasoning tasks for harvest-bench — single-turn Q/A with deterministic checkers. */
-
-import type { HarvestTask } from "./types.js";
-
-const CONCISE_SYSTEM = `You are a precise reasoner. Think carefully, then state your final answer on a clearly-labeled line starting with "Answer:".`;
-
-/** Parse non-negative integers; expands "2-4" → 2,3,4; strips LaTeX decorations first. */
-function extractIntegers(text: string): number[] {
-  // Strip LaTeX delimiters so n_1 / n^2 / \{ ... \} don't confuse us.
-  const cleaned = text
-    .replace(/\\[a-zA-Z]+/g, " ") // \frac, \mod etc.
-    .replace(/[{}\\]/g, " ")
-    .replace(/[_^]\d+/g, " "); // subscript/superscript numbers
-  // Expand ranges: "2-4" → "2,3,4" (only for small gaps)
-  const rangeExpanded = cleaned.replace(/(\d+)\s*[-–]\s*(\d+)/g, (_, a, b) => {
-    const lo = Number.parseInt(a, 10);
-    const hi = Number.parseInt(b, 10);
-    if (!Number.isFinite(lo) || !Number.isFinite(hi) || hi - lo > 50) return `${a} ${b}`;
-    const out: number[] = [];
-    for (let i = Math.min(lo, hi); i <= Math.max(lo, hi); i++) out.push(i);
-    return out.join(" ");
-  });
-  const matches = rangeExpanded.match(/-?\d+/g) ?? [];
-  return matches.map((m) => Number.parseInt(m, 10)).filter((n) => Number.isFinite(n));
-}
-
-/** Extract content after the last "Answer:" label (case-insensitive). */
-function extractAnswerLine(text: string): string {
-  const matches = [...text.matchAll(/answer\s*[:：]\s*([^\n]+)/gi)];
-  if (matches.length === 0) return text;
-  return matches[matches.length - 1]![1]!.trim();
-}
-
-/** Positive n ≤ 100 such that n^2 + n + 1 ≡ 0 (mod 7). */
-const MOD7_EXPECTED: number[] = (() => {
-  const out: number[] = [];
-  for (let n = 1; n <= 100; n++) {
-    if ((n * n + n + 1) % 7 === 0) out.push(n);
-  }
-  return out;
-})();
-
-/** Single-integer checker — first plausible int from the last "Answer:" line, exact equality. */
-function checkSingleInt(expected: number) {
-  return (reply: string) => {
-    const answerLine = extractAnswerLine(reply);
-    const nums = extractIntegers(answerLine);
-    if (nums.length === 0) return { verdict: "fail" as const, note: "no number in Answer line" };
-    const n = nums[0]!;
-    if (n === expected) return { verdict: "pass" as const };
-    return { verdict: "fail" as const, note: `got ${n}, expected ${expected}` };
-  };
-}
-
-export const TASKS: HarvestTask[] = [
-  {
-    id: "mod7_list",
-    description:
-      "Number theory — find all positive n ≤ 100 with n^2+n+1 ≡ 0 (mod 7). 29-element set. Classic R1 scratch-work territory.",
-    systemPrompt: CONCISE_SYSTEM,
-    prompt:
-      'Find all positive integers n with n ≤ 100 such that n^2 + n + 1 is divisible by 7. Briefly justify, then end with the full list on a line starting with "Answer:".',
-    check: (reply) => {
-      const answerLine = extractAnswerLine(reply);
-      const found = new Set(extractIntegers(answerLine).filter((n) => n >= 1 && n <= 100));
-      const expected = new Set(MOD7_EXPECTED);
-      if (found.size === 0) {
-        return { verdict: "fail", note: "no integers extracted from Answer line" };
-      }
-      // Exact set equality — both containment directions.
-      for (const n of expected)
-        if (!found.has(n)) return { verdict: "fail", note: `missing n=${n}` };
-      for (const n of found) if (!expected.has(n)) return { verdict: "fail", note: `extra n=${n}` };
-      return { verdict: "pass" };
-    },
-  },
-
-  {
-    id: "flips_until_3heads",
-    description:
-      "Probability — expected coin flips until 3 consecutive heads. Answer: 14. Tests whether R1 derives via recurrence or via memorized result.",
-    systemPrompt: CONCISE_SYSTEM,
-    prompt:
-      'A fair coin is flipped repeatedly until you see 3 heads in a row. What is the expected number of total flips? Give a single integer on a line starting with "Answer:".',
-    check: (reply) => {
-      const answerLine = extractAnswerLine(reply);
-      const nums = extractIntegers(answerLine);
-      if (nums.length === 0) return { verdict: "fail", note: "no number in Answer line" };
-      // Accept the first sensible number — sometimes agents write "Answer: 14 flips".
-      const n = nums[0]!;
-      if (n === 14) return { verdict: "pass" };
-      return { verdict: "fail", note: `got ${n}, expected 14` };
-    },
-  },
-
-  {
-    id: "three_hats",
-    description:
-      "Logic — three people wear red/blue hats, at least one red, they're asked in order. First two say no, third says yes. What color? Answer: red (deducible because if third were blue, the first two could see one red + one unknown and wouldn't have said no on their full first round, for most configurations the third can only be certain if red).",
-    systemPrompt: CONCISE_SYSTEM,
-    prompt:
-      'Three people wear hats that are each red or blue. They are told at least one hat is red. Each can see the other two hats but not their own. They are asked in order: "Do you know your hat color?" The first two answer no. The third answers yes. What color is the third person\'s hat? Give a one-word answer on a line starting with "Answer:".',
-    check: (reply) => {
-      const answerLine = extractAnswerLine(reply).toLowerCase();
-      // Accept "red" as a standalone word (not "redirected" etc).
-      if (/\bred\b/.test(answerLine) && !/\bblue\b/.test(answerLine)) {
-        return { verdict: "pass" };
-      }
-      if (/\bblue\b/.test(answerLine)) return { verdict: "fail", note: "answered blue" };
-      return { verdict: "fail", note: "no clear color in Answer line" };
-    },
-  },
-
-  {
-    id: "pseudoprime_base2",
-    description:
-      "Number theory — smallest composite n > 1 such that 2^n ≡ 2 (mod n). This is the smallest Fermat pseudoprime to base 2. Answer: 341 (= 11·31). V3 frequently answers 561 (Carmichael / wrong base-2 property) or 9 (not actually a pseudoprime to base 2, verifying the model isn't computing). R1 usually gets this right.",
-    systemPrompt: CONCISE_SYSTEM,
-    prompt:
-      'Find the smallest composite integer n > 1 such that 2^n is congruent to 2 modulo n (i.e., n is a Fermat pseudoprime to base 2). Briefly justify, then give a single integer on a line starting with "Answer:".',
-    check: checkSingleInt(341),
-  },
-
-  {
-    id: "derangements_d7",
-    description:
-      "Combinatorics — number of derangements of 7 elements. Answer: 1854 (D_7 = 7! · (1 − 1/1! + 1/2! − 1/3! + … ± 1/7!) = 5040 · 0.367857… = 1854). V3 sometimes approximates via n!/e and rounds wrong, or confuses with D_6=265 or D_8=14833. R1's explicit recurrence D_n = (n-1)(D_{n-1}+D_{n-2}) avoids the mistake.",
-    systemPrompt: CONCISE_SYSTEM,
-    prompt:
-      'How many permutations of {1, 2, 3, 4, 5, 6, 7} have no fixed points? (This is D_7, the derangement number.) Briefly justify, then give a single integer on a line starting with "Answer:".',
-    check: checkSingleInt(1854),
-  },
-
-  {
-    id: "euler_quadratic_break",
-    description:
-      "Number theory — smallest nonneg integer n where n^2 + n + 41 is NOT prime. Euler's prime-generating polynomial famously produces primes for n = 0..39 and first fails at n = 40 (40²+40+41 = 1681 = 41²). V3 often confuses this with the related n²-n+41 (first fails at 41) or cites the wrong threshold. R1 checks small n systematically.",
-    systemPrompt: CONCISE_SYSTEM,
-    prompt:
-      'Consider the polynomial f(n) = n^2 + n + 41 for n = 0, 1, 2, …. What is the smallest nonneg integer n at which f(n) fails to be prime? Briefly justify (including the value of f(n) at that point), then give just the integer n on a line starting with "Answer:".',
-    check: checkSingleInt(40),
-  },
-];

benchmarks/harvest/types.ts

@@ -1,61 +0,0 @@
-/** Harvest-bench types — single-turn Q/A with deterministic checkers; isolates Pillar 2 the way τ-bench-lite isolates Pillar 1. */
-
-export type HarvestMode =
-  /** deepseek-chat, no Reasonix tricks. Floor reference for answer quality on reasoning tasks (V3 at its best). */
-  | "baseline"
-  /** deepseek-reasoner, no harvest. Isolates "does reasoner help over chat on these problems?" */
-  | "reasoner"
-  /** deepseek-reasoner + harvest. Isolates "does the extra V3 harvest call add quality / change behavior?" */
-  | "reasoner-harvest";
-
-export const ALL_MODES: HarvestMode[] = ["baseline", "reasoner", "reasoner-harvest"];
-
-/** Checker verdict — `inconclusive` reserves room for "right shape, can't verify without running it". */
-export type CheckVerdict = "pass" | "fail" | "inconclusive";
-
-export interface HarvestTask {
-  id: string;
-  /** One-line human description, not shown to the model. */
-  description: string;
-  /** System prompt. Kept minimal so harvest signal can be attributed to the model, not to prompt engineering. */
-  systemPrompt: string;
-  /** The single question. */
-  prompt: string;
-  /** Pure + deterministic — no LLM calls, no file I/O. Verdict + optional one-line note. */
-  check: (agentReply: string) => { verdict: CheckVerdict; note?: string };
-}
-
-export interface HarvestRunResult {
-  taskId: string;
-  mode: HarvestMode;
-  repeat: number;
-  verdict: CheckVerdict;
-  checkNote?: string;
-  finalAgentMessage: string;
-  /** Turns the loop completed (usually 1 for a single-shot Q/A, > 1 if tool-calls happen). */
-  turns: number;
-  cacheHitRatio: number;
-  costUsd: number;
-  claudeEquivalentUsd: number;
-  /** Harvest-specific — only non-zero on reasoner-harvest mode. */
-  harvestedTurns: number;
-  totalSubgoals: number;
-  totalUncertainties: number;
-  totalHypotheses: number;
-  totalRejectedPaths: number;
-  /** Optional error message if the run crashed (model down, timeout, etc). */
-  errorMessage?: string;
-}
-
-export interface HarvestBenchMeta {
-  date: string;
-  repeatsPerTask: number;
-  taskCount: number;
-  modesRun: HarvestMode[];
-  reasonixVersion: string;
-}
-
-export interface HarvestBenchReport {
-  meta: HarvestBenchMeta;
-  results: HarvestRunResult[];
-}

benchmarks/real-world-cache/README.md

@@ -0,0 +1,76 @@
+# Real-world cache hit — single user, single day
+
+A real Reasonix user shared their DeepSeek dashboard for **2026-05-01**.
+Used with permission, anonymized.
+
+![DeepSeek usage dashboard, 2026-05-01](2026-05-01-deepseek-dashboard.png)
+
+## The numbers
+
+| | Tokens |
+|---|---:|
+| Input — cache hit | 435,033,856 |
+| Input — cache miss | 767,616 |
+| Output | 179,763 |
+| **Day total** | **435,981,235** |
+
+**Cache hit ratio (input):**
+`435,033,856 / (435,033,856 + 767,616)` = **99.82%**
+
+## Cost — using the prices Reasonix bills against (`src/telemetry/stats.ts`)
+
+USD per 1M tokens — `inputCacheHit / inputCacheMiss / output`:
+- `deepseek-v4-flash` — `0.028 / 0.139 / 0.278`
+- `deepseek-v4-pro` — `0.139 / 1.667 / 3.333`
+
+Assuming **v4-flash** (the project default):
+
+| | This user (99.82% hit) | Same workload, **0% cache** |
+|---|---:|---:|
+| Cache-hit input | $12.18 | — |
+| Cache-miss input | $0.11 | $60.58 |
+| Output | $0.05 | $0.05 |
+| **Total / day** | **$12.34** | **$60.63** |
+
+→ Cache saved this user **$48.29**, or **~80%** off the un-cached baseline, on a single day.
+
+On **v4-pro** (5× the prefix-cache discount) the same workload would cost
+**~$62.35** vs **~$727.08** without cache — a **~91% saving**.
+
+## "Isn't that just DeepSeek's prefix cache?"
+
+DeepSeek's API ships prefix caching enabled by default; the *cache* is theirs,
+the *hit rate* is the client's. Same API, different clients, very different
+hit rates:
+
+- DeepSeek's own web chat: 60–80% within a single conversation, drops to 0%
+  on a new session (system prompt may differ).
+- Cherry Studio / Open WebUI / generic OpenAI-shape SDKs: typically 30–60%
+  on long sessions — history gets reordered, tool specs get re-serialized,
+  every drift breaks the prefix.
+- Cline / Continue and other XML-tool-call clients: lower still — every tool
+  result inlines into the conversation, shifting bytes the cache keys on.
+
+99.82% is what falls out of these four design choices in Reasonix:
+
+1. **`ImmutablePrefix`** (`src/memory.ts`) — system prompt + tool specs are
+   frozen at session start. Same byte sequence every turn.
+2. **`AppendOnlyLog`** — turns only append. No reorder, no edit-in-place.
+3. **`VolatileScratch`** — chain-of-thought / per-turn scratch lives outside
+   the cached prefix so it never poisons the next hit.
+4. **Auto-compact** — when context approaches the cap, older turns fold into
+   a summary message *appended* to the prefix; the prefix itself isn't
+   rewritten, so the cache survives the fold.
+
+DeepSeek gave us cacheable bytes. The four mechanisms above are how we keep
+the bytes cacheable.
+
+## Reproduce
+
+The synthetic side of this lives in `benchmarks/tau-bench/` — same task set
+run through `CacheFirstLoop` vs a deliberately cache-hostile baseline. The
+real-world data above is what the synthetic numbers look like once a user
+runs the harness in anger.
+
+Submit your own dashboard screenshot if you want it anonymized and added
+here — open an issue.

benchmarks/tau-bench/db.ts

@@ -1,10 +1,12 @@
+/** tau-bench in-memory DB helpers — pure functions over a nested-table WorldState. */
 import type { WorldState } from "./types.js";
 
-/** Deep-clone a WorldState — `structuredClone` is enough since the type is JSON-shaped by contract. */
+/** Deep-clone a WorldState — `structuredClone` is enough since the type is JSON-shaped by contract. Idempotent: calling cloneDb N times on the same input yields identical copies. */
 export function cloneDb(db: WorldState): WorldState {
   return structuredClone(db);
 }
 
+/** Get a row by table name and id. Lookup is `db[table][id]` — two-level nested dictionary. Returns the row object or `undefined` if not found. */
 export function getRow(
   db: WorldState,
   table: string,
@@ -13,6 +15,7 @@ export function getRow(
   return db[table]?.[id];
 }
 
+/** Set a single field on a row. Mutates `db` in-place — caller should `cloneDb` first if isolation is needed. Returns `true` if the row was found and updated, `false` if not. */
 export function setField(
   db: WorldState,
   table: string,

dashboard/PARITY.md

@@ -0,0 +1,139 @@
+# Dashboard ↔ TUI parity
+
+Closing audit of #369. Inventories every slash command and how the
+web dashboard handles it.
+
+## Coverage legend
+
+- **panel** — has a dedicated SPA panel or modal beyond just typing the
+  slash in the chat box.
+- **chat-box** — works by typing the slash into the web chat input.
+  Result text shows in the dashboard scrollback as an info row. No
+  dedicated UI; the chat box _is_ the UI.
+- **tui-only** — keyboard binding or process-controlling action that
+  has no useful web equivalent. Stays a TUI affordance by design.
+
+## Counts
+
+Roughly **20 commands have a dedicated panel**, **38 work via the chat
+box**, and **`/exit` plus 4 raw keyboard shortcuts** stay TUI-only.
+Aliases (e.g. `/sessions` and `/resume` share one picker) collapse
+into one row.
+
+## Core / observability
+
+| Slash | Purpose | Coverage |
+|---|---|---|
+| `/help` | command reference | chat-box |
+| `/keys` | keyboard shortcuts + prompt prefixes | chat-box |
+| `/status` | model + flags + ctx + session | chat-box |
+| `/context` | context-window breakdown (stacked bar) | chat-box · `ctxBreakdown` payload |
+| `/cost` | last turn / next turn estimate | chat-box · usage card |
+| `/stats` | cross-session cost dashboard | **panel** · Usage tab |
+| `/think` | last R1 reasoning dump | chat-box |
+| `/tool [N]` | dump full output of Nth tool call | chat-box |
+| `/clear` | wipe visible scrollback | chat-box |
+| `/new` (`/reset`) | wipe context + scrollback | chat-box |
+| `/exit` (`/quit`, `/q`) | quit the TUI | **tui-only** |
+| `/stop` | abort current model turn | chat-box |
+| `/retry` | resend last user message | chat-box |
+| `/compact` | fold older turns into summary | chat-box |
+| `/update` | show current vs latest version | chat-box |
+| `/doctor` | health check card | chat-box · doctor card |
+
+## Model & compute
+
+| Slash | Purpose | Coverage |
+|---|---|---|
+| `/preset` | model bundle (auto / flash / pro) | **panel** · Settings → Defaults |
+| `/effort` | reasoning cap (high / max) | **panel** · Settings → Defaults |
+| `/model` | active model | **panel** · Settings → Runtime (D-4 #437) |
+| `/models` | list available models | chat-box |
+| `/pro` | arm v4-pro for next turn | **panel** · Settings → Compute (D-2 #435) |
+| `/budget` | session USD cap | **panel** · Settings → Budget + cockpit tile (D-3 #436) |
+| `/loop` | auto-resubmit on interval | **panel** · Settings → Loop (D-5 #438) |
+
+## Memory & project
+
+| Slash | Purpose | Coverage |
+|---|---|---|
+| `/memory [list / show / forget / clear]` | manage pinned memory | **panel** · Memory tab |
+| `/init` | synthesize baseline REASONIX.md | chat-box |
+| `/semantic` | semantic-search index status | chat-box |
+| `/search-engine` (`/se`) | switch web search backend | chat-box |
+| `/language` (`/lang`) | runtime language | **panel** · Settings → Language |
+
+## Sessions
+
+| Slash | Purpose | Coverage |
+|---|---|---|
+| `/sessions` | list saved sessions | **panel** · SessionPicker modal (C-2 #423) |
+| `/resume` | open a session | **panel** · same picker |
+| `/rename` | rename current session | chat-box |
+| `/forget` | delete current session | chat-box |
+| `/plans` | active + archived plans | **panel** · Plans tab |
+| `/replay [N]` | read-only plan archive | **panel** · Viewer modal (C-5 #427) |
+
+## MCP
+
+| Slash | Purpose | Coverage |
+|---|---|---|
+| `/mcp` (list) | bridged servers + tools | **panel** · MCP tab |
+| `/mcp browse` | marketplace + install | **panel** · MCP marketplace picker (C-4 #426) |
+| `/mcp disable` / `enable` / `reconnect` / `text` | server admin | chat-box |
+| `/resource [uri]` | browse / read MCP resources | chat-box |
+| `/prompt [name]` | browse / fetch MCP prompts | chat-box |
+
+## Permissions & admin
+
+| Slash | Purpose | Coverage |
+|---|---|---|
+| `/permissions [list / add / remove / clear]` | shell allowlist | **panel** · Permissions tab |
+| `/hooks [reload]` | active hooks | **panel** · Hooks tab |
+| `/dashboard [stop]` | embedded dashboard lifecycle | chat-box · *intentional — admin command for the surface you're typing in* |
+
+## Code-mode only
+
+| Slash | Purpose | Coverage |
+|---|---|---|
+| `/init [force]` | scan + synthesize REASONIX.md | chat-box |
+| `/apply [N]` | commit pending edits | chat-box |
+| `/discard [N]` | drop pending edits | chat-box |
+| `/walk` | step through pending edits | **panel** · edit-review modal already covered web pre-#369 |
+| `/undo` | roll back last edit batch | chat-box |
+| `/history` | edit batch list | chat-box |
+| `/show [id]` | dump stored edit diff | chat-box |
+| `/commit "msg"` | git commit | chat-box |
+| `/checkpoint [name / list / forget]` | snapshot touched files | chat-box |
+| `/restore` | roll back to checkpoint | **panel** · CheckpointPicker modal (C-3 #425) |
+| `/plan [on / off]` | read-only plan mode | chat-box |
+| `/apply-plan` | force-approve pending plan | chat-box |
+| `/mode [review / auto / yolo]` | edit gate | **panel** · Chat header pill |
+| `/jobs` | list background jobs | chat-box |
+| `/kill <id>` | stop background job | chat-box |
+| `/logs <id> [lines]` | tail job output | chat-box |
+| `/skill [list / show / new / <name>]` | skill management | **panel** · Skills tab |
+
+## Keyboard / TTY-native
+
+These don't have slashes. They ride alongside the slash surface and
+stay TUI-only:
+
+- `Esc` — abort current model turn (web equivalent: Abort button in chat)
+- `Shift+Tab` — cycle edit mode (web equivalent: mode pill in chat header)
+- `Ctrl-L`, `Ctrl-O`, `space`, `u` — TTY scroll / undo banner / pause hotkeys
+
+## Done
+
+Buckets covered:
+- **C** (#416, closed): pickers — `/sessions`, `/restore`, `/mcp browse`, `/replay` + `/walk` (already)
+- **D** (#428, closed): settings — `/preset`, `/effort`, `/model`, `/pro`, `/budget`, `/loop`, `/language`
+
+Bucket A (text outputs that stay chat-box) and bucket B (structured
+outputs that already have panels) need no further work — the panels
+shipped in C/D plus the long-standing Memory / Permissions / Hooks /
+Skills / Plans / Usage tabs already cover every command whose output
+warranted a dedicated UI.
+
+This file is the source of truth for the audit. Add a row when a
+new slash lands.

dashboard/app.js

@@ -3,10 +3,11 @@
 import htm from "htm";
 import { h, render } from "preact";
 import { useCallback, useEffect, useState } from "preact/hooks";
+import { initLangFromServer, t, useLang } from "./src/i18n";
 import { MODE } from "./src/lib/api";
 import { ToastStack, appBus } from "./src/lib/bus";
 import { ErrorBoundary, ErrorOverlay } from "./src/lib/error-boundary";
-import { initLangFromServer, t, useLang } from "./src/i18n";
+import { ChangesPanel } from "./src/panels/changes";
 import { ChatPanel } from "./src/panels/chat";
 import { HooksPanel } from "./src/panels/hooks";
 import { McpPanel } from "./src/panels/mcp";
@@ -24,6 +25,28 @@ import { UsagePanel } from "./src/panels/usage";
 
 const html = htm.bind(h);
 
+function useTheme() {
+  const [theme, setTheme] = useState(() => {
+    try {
+      const stored = localStorage.getItem("rx.theme");
+      if (stored === "light" || stored === "dark") return stored;
+    } catch {
+      /* private mode */
+    }
+    if (window.matchMedia?.("(prefers-color-scheme: light)").matches) return "light";
+    return "dark";
+  });
+  useEffect(() => {
+    document.documentElement.dataset.theme = theme;
+    try {
+      localStorage.setItem("rx.theme", theme);
+    } catch {
+      /* private mode / disabled storage — ignore */
+    }
+  }, [theme]);
+  return [theme, setTheme];
+}
+
 function tabSections() {
   return [
     {
@@ -31,28 +54,79 @@ function tabSections() {
       tabs: [
         { id: "chat", name: t("app.tabChat"), glyph: "◆", panel: () => html`<${ChatPanel} />` },
         { id: "plans", name: t("app.tabPlans"), glyph: "⊞", panel: () => html`<${PlansPanel} />` },
-        { id: "sessions", name: t("app.tabSessions"), glyph: "›", panel: () => html`<${SessionsPanel} />` },
+        {
+          id: "sessions",
+          name: t("app.tabSessions"),
+          glyph: "›",
+          panel: () => html`<${SessionsPanel} />`,
+        },
+      ],
+    },
+    {
+      label: t("app.sectionChanges"),
+      tabs: [
+        {
+          id: "changes",
+          name: t("app.tabChanges"),
+          glyph: "▨",
+          panel: () => html`<${ChangesPanel} />`,
+        },
       ],
     },
     {
       label: t("app.sectionObserve"),
       tabs: [
-        { id: "overview", name: t("app.tabOverview"), glyph: "◈", panel: () => html`<${OverviewPanel} />` },
+        {
+          id: "overview",
+          name: t("app.tabOverview"),
+          glyph: "◈",
+          panel: () => html`<${OverviewPanel} />`,
+        },
         { id: "usage", name: t("app.tabUsage"), glyph: "$", panel: () => html`<${UsagePanel} />` },
-        { id: "health", name: t("app.tabSystem"), glyph: "+", panel: () => html`<${SystemPanel} />` },
-        { id: "semantic", name: t("app.tabSemantic"), glyph: "≈", panel: () => html`<${SemanticPanel} />` },
+        {
+          id: "health",
+          name: t("app.tabSystem"),
+          glyph: "+",
+          panel: () => html`<${SystemPanel} />`,
+        },
+        {
+          id: "semantic",
+          name: t("app.tabSemantic"),
+          glyph: "≈",
+          panel: () => html`<${SemanticPanel} />`,
+        },
       ],
     },
     {
       label: t("app.sectionConfigure"),
       tabs: [
         { id: "tools", name: t("app.tabTools"), glyph: "▣", panel: () => html`<${ToolsPanel} />` },
-        { id: "permissions", name: t("app.tabPermissions"), glyph: "▎", panel: () => html`<${PermissionsPanel} />` },
+        {
+          id: "permissions",
+          name: t("app.tabPermissions"),
+          glyph: "▎",
+          panel: () => html`<${PermissionsPanel} />`,
+        },
         { id: "mcp", name: t("app.tabMcp"), glyph: "M", panel: () => html`<${McpPanel} />` },
-        { id: "skills", name: t("app.tabSkills"), glyph: "S", panel: () => html`<${SkillsPanel} />` },
-        { id: "memory", name: t("app.tabMemory"), glyph: "·", panel: () => html`<${MemoryPanel} />` },
+        {
+          id: "skills",
+          name: t("app.tabSkills"),
+          glyph: "S",
+          panel: () => html`<${SkillsPanel} />`,
+        },
+        {
+          id: "memory",
+          name: t("app.tabMemory"),
+          glyph: "·",
+          panel: () => html`<${MemoryPanel} />`,
+        },
         { id: "hooks", name: t("app.tabHooks"), glyph: "H", panel: () => html`<${HooksPanel} />` },
-        { id: "settings", name: t("app.tabSettings"), glyph: "⌘", panel: () => html`<${SettingsPanel} />` },
+        {
+          id: "settings",
+          name: t("app.tabSettings"),
+          glyph: "⌘",
+          panel: () => html`<${SettingsPanel} />`,
+        },
       ],
     },
   ];
@@ -60,7 +134,9 @@ function tabSections() {
 
 function App() {
   useLang();
-  useEffect(() => { initLangFromServer(); }, []);
+  useEffect(() => {
+    initLangFromServer();
+  }, []);
   const [activeId, setActiveId] = useState(() => {
     try {
       return localStorage.getItem("rx.activeTab") ?? "chat";
@@ -68,6 +144,7 @@ function App() {
       return "chat";
     }
   });
+  const [theme, setTheme] = useTheme();
   const [sidebarCollapsed, setSidebarCollapsed] = useState(() => {
     try {
       return localStorage.getItem("rx.sidebarCollapsed") === "1";
@@ -136,6 +213,11 @@ function App() {
         </div>
         <div class="side-foot">
           <span class="label">127.0.0.1</span>
+          <span
+            class="toggle theme-toggle"
+            title=${t("app.themeToggle") + (theme === "dark" ? ` (${t("app.themeLight")})` : ` (${t("app.themeDark")})`)}
+            onClick=${() => setTheme(theme === "dark" ? "light" : "dark")}
+          >${theme === "dark" ? "☀" : "☾"}</span>
           <span
             class="toggle"
             title=${sidebarCollapsed ? "expand" : "collapse"}

dashboard/src/components/chat-internals.ts

@@ -1,4 +1,5 @@
 import { marked } from "marked";
+import { memo } from "preact/compat";
 import { useState } from "preact/hooks";
 import { html } from "../lib/html.js";
 import { t, useLang } from "../i18n/index.js";
@@ -104,6 +105,49 @@ interface RevisionSpec {
   remainingSteps: RevisionStep[];
 }
 
+export type PickerActionName =
+  | "pick"
+  | "delete"
+  | "rename"
+  | "new"
+  | "install"
+  | "uninstall"
+  | "load-more"
+  | "refine"
+  | "cancel";
+
+export interface PickerItemSpec {
+  id: string;
+  title: string;
+  subtitle?: string;
+  badge?: string;
+  meta?: string;
+}
+
+export interface PickerModalSpec {
+  pickerKind: string;
+  title: string;
+  query?: string;
+  items: PickerItemSpec[];
+  actions: PickerActionName[];
+  hasMore?: boolean;
+  hint?: string;
+}
+
+export interface ViewerStep {
+  id: string;
+  title: string;
+  status: "done" | "queued";
+}
+
+export interface ViewerModalSpec {
+  viewerKind: string;
+  title: string;
+  body?: string;
+  steps?: ViewerStep[];
+  meta?: string;
+}
+
 interface DiffEntry {
   kind: "context" | "ins" | "del";
   text: string;
@@ -257,7 +301,11 @@ export function ToolCard({ msg }: ToolCardProps) {
   `;
 }
 
-export function ChatMessage({ msg, streaming }: ChatMessageProps) {
+// memo() short-circuits re-renders when shallow props are unchanged.
+// Historical messages keep stable msg references across deltas, so the
+// O(N) marked.parse + hljs work that used to fire per assistant_delta
+// now only runs on truly new messages and the live streaming bubble.
+export const ChatMessage = memo(function ChatMessage({ msg, streaming }: ChatMessageProps) {
   const role = msg.role;
   const glyph = ROLE_GLYPH[role as ChatRole] ?? "·";
   if (role === "tool") {
@@ -278,7 +326,7 @@ export function ChatMessage({ msg, streaming }: ChatMessageProps) {
       </div>
     </div>
   `;
-}
+});
 
 //
 // Each component renders a card matching the TUI's ModalCard accent
@@ -617,6 +665,220 @@ export function CheckpointModal({ modal, onResolve }: { modal: CheckpointSpec; o
   `;
 }
 
+export function PickerModal({
+  modal,
+  onResolve,
+}: {
+  modal: PickerModalSpec;
+  onResolve: OnResolve;
+}) {
+  useLang();
+  const [selectedId, setSelectedId] = useState<string | null>(modal.items[0]?.id ?? null);
+  const [query, setQuery] = useState(modal.query ?? "");
+  const [renameTarget, setRenameTarget] = useState<string | null>(null);
+  const [renameText, setRenameText] = useState("");
+  const [showNew, setShowNew] = useState(false);
+  const [newText, setNewText] = useState("");
+
+  const has = (a: PickerActionName) => modal.actions.includes(a);
+  const selected = modal.items.find((i) => i.id === selectedId) ?? null;
+
+  const submitRefine = (next: string) => {
+    setQuery(next);
+    if (has("refine")) onResolve("picker", { action: "refine", query: next });
+  };
+
+  const startRename = (id: string) => {
+    const item = modal.items.find((i) => i.id === id);
+    if (!item) return;
+    setRenameTarget(id);
+    setRenameText(item.title);
+  };
+
+  const sendRename = () => {
+    if (!renameTarget || !renameText.trim()) return;
+    onResolve("picker", { action: "rename", id: renameTarget, text: renameText });
+    setRenameTarget(null);
+    setRenameText("");
+  };
+
+  const sendNew = () => {
+    onResolve("picker", newText.trim() ? { action: "new", text: newText } : { action: "new" });
+    setShowNew(false);
+    setNewText("");
+  };
+
+  return html`
+    <${ModalCard}
+      accent="#fcd34d"
+      icon="≡"
+      title=${modal.title}
+      subtitle=${modal.hint}
+    >
+      ${
+        has("refine")
+          ? html`<input
+              class="modal-picker-search"
+              type="search"
+              placeholder=${t("modal.pickerFilter")}
+              value=${query}
+              onInput=${(e: Event) => submitRefine((e.target as HTMLInputElement).value)}
+            />`
+          : null
+      }
+      <div class="modal-picker-list">
+        ${
+          modal.items.length === 0
+            ? html`<div class="modal-picker-empty">${t("modal.pickerEmpty")}</div>`
+            : modal.items.map(
+                (it) => html`
+                  <button
+                    key=${it.id}
+                    class=${`modal-picker-row${it.id === selectedId ? " selected" : ""}`}
+                    onClick=${() => setSelectedId(it.id)}
+                    onDblClick=${() => has("pick") && onResolve("picker", { action: "pick", id: it.id })}
+                  >
+                    <span class="modal-picker-title">${it.title}</span>
+                    ${it.badge ? html`<span class="modal-picker-badge">${it.badge}</span>` : null}
+                    ${it.subtitle ? html`<span class="modal-picker-subtitle">${it.subtitle}</span>` : null}
+                    ${it.meta ? html`<span class="modal-picker-meta">${it.meta}</span>` : null}
+                  </button>
+                `,
+              )
+        }
+      </div>
+      ${
+        modal.hasMore && has("load-more")
+          ? html`<button
+              class="modal-picker-more"
+              onClick=${() => onResolve("picker", { action: "load-more" })}
+            >${t("modal.pickerLoadMore")}</button>`
+          : null
+      }
+      ${
+        renameTarget
+          ? html`
+            <div class="modal-picker-form">
+              <input
+                type="text"
+                value=${renameText}
+                onInput=${(e: Event) => setRenameText((e.target as HTMLInputElement).value)}
+              />
+              <div class="modal-actions">
+                <button class="primary" onClick=${sendRename} disabled=${!renameText.trim()}>${t("common.save")}</button>
+                <button onClick=${() => setRenameTarget(null)}>${t("common.back")}</button>
+              </div>
+            </div>
+          `
+          : showNew
+            ? html`
+              <div class="modal-picker-form">
+                <input
+                  type="text"
+                  placeholder=${t("modal.pickerNewPlaceholder")}
+                  value=${newText}
+                  onInput=${(e: Event) => setNewText((e.target as HTMLInputElement).value)}
+                />
+                <div class="modal-actions">
+                  <button class="primary" onClick=${sendNew}>${t("common.add")}</button>
+                  <button onClick=${() => setShowNew(false)}>${t("common.back")}</button>
+                </div>
+              </div>
+            `
+            : html`
+              <div class="modal-actions">
+                ${
+                  has("pick") && selected
+                    ? html`<button
+                        class="primary"
+                        onClick=${() => onResolve("picker", { action: "pick", id: selected.id })}
+                      >${t("modal.pickerPick")}</button>`
+                    : null
+                }
+                ${
+                  has("install") && selected
+                    ? html`<button
+                        class="primary"
+                        onClick=${() => onResolve("picker", { action: "install", id: selected.id })}
+                      >${t("modal.pickerInstall")}</button>`
+                    : null
+                }
+                ${
+                  has("uninstall") && selected
+                    ? html`<button
+                        onClick=${() => onResolve("picker", { action: "uninstall", id: selected.id })}
+                      >${t("modal.pickerUninstall")}</button>`
+                    : null
+                }
+                ${
+                  has("rename") && selected
+                    ? html`<button onClick=${() => startRename(selected.id)}>${t("modal.pickerRename")}</button>`
+                    : null
+                }
+                ${
+                  has("delete") && selected
+                    ? html`<button
+                        class="danger"
+                        onClick=${() => onResolve("picker", { action: "delete", id: selected.id })}
+                      >${t("common.delete")}</button>`
+                    : null
+                }
+                ${
+                  has("new")
+                    ? html`<button onClick=${() => setShowNew(true)}>${t("modal.pickerNew")}</button>`
+                    : null
+                }
+                <button onClick=${() => onResolve("picker", { action: "cancel" })}>${t("modal.cancel")}</button>
+              </div>
+            `
+      }
+    <//>
+  `;
+}
+
+export function ViewerModal({
+  modal,
+  onResolve,
+}: {
+  modal: ViewerModalSpec;
+  onResolve: OnResolve;
+}) {
+  useLang();
+  return html`
+    <${ModalCard}
+      accent="#67e8f9"
+      icon="◇"
+      title=${modal.title}
+      subtitle=${modal.meta}
+    >
+      ${
+        modal.steps && modal.steps.length > 0
+          ? html`
+            <ol class="modal-viewer-steps">
+              ${modal.steps.map(
+                (s: ViewerStep) => html`
+                  <li key=${s.id} class=${`modal-viewer-step modal-viewer-step-${s.status}`}>
+                    <span class="modal-viewer-step-mark">${s.status === "done" ? "✓" : "·"}</span>
+                    <span class="modal-viewer-step-title">${s.title}</span>
+                  </li>
+                `,
+              )}
+            </ol>
+          `
+          : null
+      }
+      ${
+        modal.body
+          ? html`<div class="md modal-viewer-body" dangerouslySetInnerHTML=${{ __html: marked.parse(modal.body) }}></div>`
+          : null
+      }
+      <div class="modal-actions">
+        <button onClick=${() => onResolve("viewer", { action: "close" })}>${t("modal.viewerClose")}</button>
+      </div>
+    <//>
+  `;
+}
+
 export function RevisionModal({ modal, onResolve }: { modal: RevisionSpec; onResolve: OnResolve }) {
   useLang();
   const riskColor = (r: string | undefined) =>

dashboard/src/i18n/en.ts

@@ -17,7 +17,64 @@ export const en = {
     tabMemory: "Memory",
     tabHooks: "Hooks",
     tabSettings: "Settings",
+    sectionChanges: "Changes",
+    tabChanges: "Changes",
     footer: "127.0.0.1 only · token-gated",
+    themeToggle: "Toggle theme",
+    themeLight: "Light",
+    themeDark: "Dark",
+  },
+  changes: {
+    chatPlaceholder: "Ask about your code...",
+    chatWelcome: "Changes — ask questions about your project files.",
+    chatSend: "Send",
+    viewerPlaceholder: "Select a file to view",
+    treeEmpty: "(empty)",
+    tabClose: "Close tab",
+    newConversation: "New",
+    clearConversation: "Clear",
+    newTitle: "/new — wipe conversation context",
+    clearTitle: "/clear — wipe visible scrollback",
+    newConfirmBusy: "A turn is in flight. Abort and start a new conversation?",
+    newConfirm: "Clear current conversation and start fresh?",
+    newToast: "new conversation",
+    clearToast: "scrollback cleared",
+    newFailed: "/new failed: {error}",
+    clearFailed: "/clear failed: {error}",
+    chatSendBtn: "Send",
+    fileTreeTitle: "Files",
+    codeViewerTitle: "Code Viewer",
+    chatPanelTitle: "Chat",
+    loadingFiles: "Loading project files…",
+    review: "Review",
+    allFiles: "All Files",
+    changes: "changes",
+    commentLabel: "Commenting on line",
+    commentPlaceholder: "Add a comment…",
+    commentCancel: "Cancel",
+    commentSubmit: "Comment",
+    commentLine: "Line",
+    commentEdit: "Edit",
+    commentDelete: "Delete",
+    diffSourceGit: "Git changes",
+    diffSourceSession: "Previous session",
+    diffSourceCheckpoint: "Checkpoint",
+    checkpointEmpty: "No checkpoints in this workspace yet.",
+    restoreBtn: "Restore",
+    restoreConfirm: 'Restore "{name}"? This will overwrite current files.',
+    deleteBtn: "Delete",
+    deleteConfirm: 'Delete checkpoint "{name}"? Snapshot will be removed, files stay unchanged.',
+    createBtn: "Snapshot",
+    createPlaceholder: "name for snapshot…",
+    backToList: "back to list",
+    reviewEmpty: "No pending reviews.",
+    diffStyleUnified: "Unified",
+    diffStyleSplit: "Split",
+    expandAll: "Expand all",
+    collapseAll: "Collapse all",
+    createFailed: "create failed",
+    restoreFailed: "restore failed",
+    deleteFailed: "delete failed",
   },
   common: {
     loading: "loading…",
@@ -61,8 +118,40 @@ export const en = {
     effortHigh: "high (cheaper / faster)",
     webSearch: "web search",
     webSearchNote: "web_fetch + web_search tools",
+    sectionCompute: "Compute",
+    proNext: "/pro one-shot",
+    proArm: "Arm for next turn",
+    proArmed: "Armed — disarms after next turn",
+    proNextNote: "next turn runs on deepseek-v4-pro, then auto-disarms",
+    sectionBudget: "Budget",
+    budgetOf: "of",
+    budgetSetCap: "set a cap",
+    budgetCustom: "custom",
+    budgetBumpHint: "bump the cap to keep going",
+    budgetClear: "Clear cap",
+    budgetIdleLine: "warns at 80% · refuses past 100%",
+    budgetWarnLine: "approaching cap — loop will refuse past 100%",
+    budgetRefusing: "cap exhausted — next turn refused until bumped or cleared",
+    sectionLoop: "Loop",
+    loopIdleHint: "Auto-resubmit a prompt on a fixed interval.",
+    loopCostHint: "Each iteration costs ~{cost} (last turn).",
+    loopInterval: "interval",
+    loopCustom: "custom",
+    loopRangeError: "interval must fall in 5s..6h",
+    loopPrompt: "prompt",
+    loopPromptPlaceholder: "e.g. check the deploy status and report any errors",
+    loopStart: "Start loop",
+    loopStop: "Stop",
+    loopRunning: "running",
+    loopIter: "iter {iter}",
+    loopFiresIn: "fires in {remaining}",
+    sectionSkills: "Skills",
+    skillPaths: "skill paths",
+    skillPathsPlaceholder: "/path/to/skills-a, /path/to/skills-b",
+    skillPathsNote: "comma-separated · next /new or new session",
     sectionRuntime: "Runtime",
     activeModel: "active model",
+    modelPricingLine: "${hit} hit · ${miss} miss · ${out} out  per 1M tok",
     editMode: "edit mode",
     editModeNote: "switch from the Chat tab header",
     sectionLanguage: "Language",
@@ -89,7 +178,8 @@ export const en = {
     clearFailed: "/clear failed: {error}",
     eventStreamError: "event stream interrupted — reconnecting…",
     semanticBanner: "Semantic search isn't enabled for this project.",
-    semanticBannerDesc: "Build the index once and the model can find code by meaning (\"where do we handle auth failures?\") instead of grep on exact strings.",
+    semanticBannerDesc:
+      'Build the index once and the model can find code by meaning ("where do we handle auth failures?") instead of grep on exact strings.',
     semanticBannerBtn: "Build it →",
     semanticBannerDismiss: "dismiss (don't show again)",
     slashCommands: "slash commands",
@@ -98,9 +188,12 @@ export const en = {
     effortMaxTitle: "max (default — best quality)",
     effortHighTitle: "high (cheaper / faster)",
     presetTitle: "preset — model commitment",
-    presetAutoTitle: "auto — flash baseline; auto-escalates to pro on hard turns (NEEDS_PRO / failure threshold)",
-    presetFlashTitle: "flash — always flash; no auto-escalate. /pro still works for one-shot manual",
-    presetProTitle: "pro — always pro; ~3× flash cost (5/31 discount). Locks in on hard architecture work.",
+    presetAutoTitle:
+      "auto — flash baseline; auto-escalates to pro on hard turns (NEEDS_PRO / failure threshold)",
+    presetFlashTitle:
+      "flash — always flash; no auto-escalate. /pro still works for one-shot manual",
+    presetProTitle:
+      "pro — always pro; ~3× flash cost (5/31 discount). Locks in on hard architecture work.",
     editGateTitle: "edit gate — Shift+Tab cycles in TUI",
     editReviewTitle: "review — both edits and non-allowlisted shell ask first",
     editAutoTitle: "auto — edits auto-apply, shell still asks",
@@ -139,12 +232,14 @@ export const en = {
     loading: "loading overview…",
     failed: "overview failed: {error}",
     standaloneTitle: "Standalone mode",
-    standaloneDesc: "Read-only disk view. Start /dashboard from inside reasonix code for live session state, MCP, and tools.",
+    standaloneDesc:
+      "Read-only disk view. Start /dashboard from inside reasonix code for live session state, MCP, and tools.",
     cockpit: "Cockpit",
     balance: "balance",
     tokens7d: "tokens · 7d",
     cacheHit: "cache hit",
     toolCalls24h: "tool calls · 24h",
+    budget: "budget",
     currentSession: "current session",
     noSession: "No live session — /dashboard from inside reasonix code to attach.",
     promptTok: "prompt tok",
@@ -180,12 +275,19 @@ export const en = {
     dailyMeta: "cost · cache saved · turns",
     noData: "No usage data yet — run a turn in reasonix chat / code / run and refresh.",
     windows: "Rolling windows",
+    colWindow: "window",
     colTurns: "turns",
     colCacheHit: "cache hit",
     colCost: "cost (USD)",
     colCacheSaved: "cache saved",
     colVsClaude: "vs Claude",
     colSaved: "saved",
+    axisTime: "time",
+    axisUsd: "USD",
+    axisTurns: "turns",
+    seriesCost: "cost",
+    seriesCacheSaved: "cache saved",
+    seriesTurns: "turns",
     mostUsed: "Most used models",
     colModel: "model",
   },
@@ -197,10 +299,21 @@ export const en = {
     msgs: "msgs",
     pickHint: "Pick a session on the left to read its transcript.",
     resumeTitle: "Resume in TUI",
-    resumeDesc: "Mid-session swap requires a restart so the message log can rewind cleanly. Quit your current session, then run:",
+    resumeDesc:
+      "Mid-session swap requires a restart so the message log can rewind cleanly. Quit your current session, then run:",
     loadingTranscript: "loading transcript…",
     emptyTranscript: "empty transcript.",
     messages: "{count} message{s}",
+    newBtn: "New session",
+    newHint: "Archive the current conversation and start a fresh one",
+    switchBtn: "Switch to this session",
+    deleteBtn: "Delete",
+    deleteConfirm: "Delete session \"{name}\"? This removes the transcript file and cannot be undone.",
+    cantDeleteActive: "Switch to a different session before deleting this one.",
+    attachRequired:
+      "Live session operations need an attached CLI session. Launch via reasonix chat or open the dashboard from inside a TUI session.",
+    activeChip: "active",
+    activePill: "active",
   },
   tools: {
     loading: "loading tools…",
@@ -213,29 +326,99 @@ export const en = {
     readOnly: "read-only",
     write: "write",
     flat: "flat",
+    desc: {
+      web_search:
+        "Search the public web. Returns ranked results with title, url, and snippet. Call this when the answer depends on current state — events, prices, releases, real-world status.",
+      web_fetch:
+        "Download a URL and return its visible text content (scripts/styles/nav stripped). Use after web_search when a snippet isn't enough.",
+      run_command:
+        "Run a shell command in the project root; returns combined stdout+stderr. Allowlisted read-only commands run immediately; mutations are gated by user confirmation.",
+      run_background:
+        "Spawn a long-running process and detach. Returns a job id for tailing logs, waiting for completion, or killing. Use for dev servers, watchers, and one-shot long jobs.",
+      job_output:
+        "Read the latest output of a background job. Returns the tail of the buffer and tells you whether the job is still running.",
+      wait_for_job:
+        "Block server-side until a background job finishes, bounded by timeout. Use instead of polling job_output in a loop.",
+      stop_job:
+        "Stop a background job. SIGTERM first, SIGKILL after a grace period. Safe to call on an already-exited job.",
+      list_jobs:
+        "List every background job started this session — running and exited — with id, command, pid, and status.",
+      remember:
+        "Save a memory for future sessions. Use when the user states a preference, corrects your approach, shares a non-obvious fact, or asks you to remember something.",
+      forget:
+        "Delete a memory file and remove it from MEMORY.md. Use when the user asks to forget something or a remembered fact is now wrong.",
+      recall_memory:
+        "Read the full body of a memory file when its one-line summary isn't enough detail.",
+      read_file:
+        "Read a file under the sandbox root. Supports head/tail/range scoping to save context. Auto-returns a preview for files over 200 lines.",
+      list_directory:
+        "List entries in a directory. Returns one line per entry, marking directories with a trailing slash.",
+      directory_tree:
+        "Recursively list entries in a directory as an indented tree. Budget-aware with auto-collapse for large subtrees.",
+      search_files:
+        "Find files whose NAME matches a substring or regex. Case-insensitive. Skips dependency/build directories by default.",
+      search_content:
+        "Recursively grep file CONTENTS for a substring or regex. Returns matches in path:line:text format. The right tool for finding references.",
+      glob: "List files matching a glob pattern, sorted by mtime. Default limit 200, max 1000. Skips node_modules/.git/dist by default.",
+      get_file_info: "Stat a path under the sandbox root. Returns type, size in bytes, and mtime.",
+      write_file:
+        "Create or overwrite a file with the given content. Parent directories are created as needed.",
+      edit_file:
+        "Apply a SEARCH/REPLACE edit to an existing file. The search must match exactly and be unique in the file.",
+      multi_edit:
+        "Apply N SEARCH/REPLACE edits across one or more files atomically. If any edit fails, no files are written.",
+      create_directory: "Create a directory (and any missing parents) under the sandbox root.",
+      move_file: "Rename or move a file or directory under the sandbox root.",
+      delete_file:
+        "Delete one file under the sandbox root. Refuses directories — use delete_directory for those.",
+      delete_directory:
+        "Recursively delete a directory under the sandbox root. Pass recursive:false to refuse non-empty directories.",
+      copy_file:
+        "Copy a file or directory under the sandbox root. Refuses to overwrite an existing destination.",
+      submit_plan:
+        "Submit one concrete plan for a review gate. Use for multi-file refactors, architecture changes, or anything expensive to undo.",
+      mark_step_complete:
+        "Mark one step of the approved plan as done. Call exactly once after finishing each step.",
+      revise_plan:
+        "Surgically replace the remaining steps of an in-flight plan. Done steps are never touched.",
+      run_skill:
+        "Invoke a playbook from the Skills index. Pass the bare skill name. Subagent-tagged skills spawn an isolated subagent.",
+      spawn_subagent:
+        "Spawn an isolated subagent for a self-contained subtask. Use for parallel fan-out or when the work needs many file reads.",
+      todo_write:
+        "In-session task tracker for multi-step work. Replaces the entire list every call. No approval gate or file writes.",
+      ask_choice:
+        "Present 2-6 alternatives to the user. Use when the user asks for options or you need a preference decision.",
+      create_skill:
+        "Scaffold a new skill the user can invoke later via /skill. Supports inline and subagent run modes.",
+      add_mcp_server:
+        "Register a new MCP server in the user's config. Takes effect on the next session. Supports stdio, SSE, and streamable-http.",
+    },
   },
   permissions: {
     loading: "loading permissions…",
     failed: "permissions failed: {error}",
     yoloTitle: "YOLO mode",
-    yoloDesc: "Every shell command auto-runs, allowlist bypassed. Switch back with /mode review in the TUI.",
+    yoloDesc:
+      "Every shell command auto-runs, allowlist bypassed. Switch back with /mode review in the TUI.",
     project: "project",
     builtin: "builtin",
     addPrefix: "add a prefix",
-    addPlaceholder: "e.g. \"npm run build\" or \"deploy.sh\"",
+    addPlaceholder: 'e.g. "npm run build" or "deploy.sh"',
     clearAll: "Clear all",
     alreadyIn: "{prefix} already in list",
     added: "added: {prefix}",
     removed: "removed: {prefix}",
     cleared: "cleared {count} entr{y}",
-    removeConfirm: "Remove \"{prefix}\" from this project's allowlist?",
+    removeConfirm: 'Remove "{prefix}" from this project\'s allowlist?',
     clearConfirm: "Wipe every project allowlist entry? Builtin entries are unaffected.",
     projectAllowlist: "Project allowlist · {count}",
     nothingStored: "Nothing stored yet for this project.",
     colNum: "#",
     colPrefix: "prefix",
     builtinTitle: "Builtin · {count} · read-only",
-    standaloneWarning: "Mutations require /dashboard from inside an active reasonix code session — standalone reasonix dashboard can't tell which project's allowlist to edit.",
+    standaloneWarning:
+      "Mutations require /dashboard from inside an active reasonix code session — standalone reasonix dashboard can't tell which project's allowlist to edit.",
   },
   mcp: {
     loading: "loading MCP…",
@@ -255,8 +438,13 @@ export const en = {
     removeBtn: "Remove",
     spec: "spec",
     whyUnbridged: "Why unbridged?",
-    whyUnbridgedDesc: "This spec lives in your config.json but isn't bridged into the live session. MCP servers attach when reasonix code starts; the dashboard alone can't spawn the child process.",
+    whyUnbridgedDesc:
+      "This spec lives in your config.json but isn't bridged into the live session. MCP servers attach when reasonix code starts; the dashboard alone can't spawn the child process.",
     whyUnbridgedHint: "To activate: restart reasonix code, then refresh this dashboard.",
+    bridgeFailed: "Bridge failed",
+    bridgeFailedTitle: "bridge failed · in config",
+    bridgeFailedHint:
+      "Reasonix tried to bridge this server and the attempt errored. Common causes: wrong URL, missing auth header, upstream 404/5xx, missing local command. Fix and restart reasonix code to retry.",
     pickHint: "Pick an MCP server on the left to inspect tools / resources / prompts.",
     toolsTitle: "Tools · {count}",
     resourcesTitle: "Resources · {count}",
@@ -283,13 +471,17 @@ export const en = {
     marketplaceAlready: "already installed",
     marketplaceNeedsEnv: "needs env: {names}",
     marketplaceSourceTag: "[{source}]",
-    marketplaceNoInstall: "smithery listing — install metadata not exposed; use `npx -y @smithery/cli install {name}` directly",
-    marketplaceFetchOnInstall: "Smithery listing — install detail fetched on Install. http servers map to streamable-http remotes; stdio servers run via @smithery/cli.",
+    marketplaceNoInstall:
+      "smithery listing — install metadata not exposed; use `npx -y @smithery/cli install {name}` directly",
+    marketplaceFetchOnInstall:
+      "Smithery listing — install detail fetched on Install. http servers map to streamable-http remotes; stdio servers run via @smithery/cli.",
     marketplaceInstalledBadge: "installed",
     marketplaceUninstall: "Uninstall",
     marketplaceEnvTitle: "Required environment variables",
-    marketplaceEnvHint: "Set these in your shell before next `reasonix code` so the bridged server can authenticate.",
-    marketplaceRestartHint: "Spec written to ~/.reasonix/config.json. Restart `reasonix code` to bridge the server (live hot-reload is on the roadmap).",
+    marketplaceEnvHint:
+      "Set these in your shell before next `reasonix code` so the bridged server can authenticate.",
+    marketplaceRestartHint:
+      "Spec written to ~/.reasonix/config.json. Restart `reasonix code` to bridge the server (live hot-reload is on the roadmap).",
   },
   memory: {
     loading: "loading memory…",
@@ -325,6 +517,7 @@ export const en = {
     loading: "loading skills…",
     filterPlaceholder: "filter skills",
     project: "project",
+    custom: "custom",
     global: "global",
     builtin: "builtin",
     newSkill: "new skill",
@@ -332,7 +525,9 @@ export const en = {
     runs7d: "runs · 7d",
     pickHint: "Pick a skill on the left, or create a new one above.",
     readOnlyBuiltin: "read-only · builtin",
-    builtinDesc: "Built-in skills ship with Reasonix; the model picks them up automatically. To customize, create a project- or global-scoped skill with the same name.",
+    readOnlyCustom: "read-only · custom path",
+    builtinDesc:
+      "Built-in skills ship with Reasonix; the model picks them up automatically. To customize, create a project- or global-scoped skill with the same name.",
     saved: "saved {scope}/{name}",
     deleteConfirm: "Delete skill {scope}/{name}?",
     reloadHint: "re-loaded on next /new or session restart",
@@ -375,6 +570,7 @@ export const en = {
     filterPlaceholder: "filter plans",
     active: "active",
     done: "done",
+    idle: "idle",
     steps: "steps",
     pickHint: "Pick a plan on the left.",
     noTitle: "(no title)",
@@ -388,11 +584,13 @@ export const en = {
     ready: "ready",
     setupNeeded: "setup needed",
     installOllama: "Install Ollama",
-    installOllamaDesc: "Reasonix doesn't run package managers for you. Install Ollama first, then come back:",
+    installOllamaDesc:
+      "Reasonix doesn't run package managers for you. Install Ollama first, then come back:",
     macWindows: "macOS / Windows:",
     download: "download from ollama.com/download",
     linux: "Linux:",
-    refreshHint: "Refresh after install — this panel will offer to start the daemon and pull {model}.",
+    refreshHint:
+      "Refresh after install — this panel will offer to start the daemon and pull {model}.",
     daemon: "Daemon",
     daemonDesc: "ollama is on your PATH but the HTTP daemon isn't reachable.",
     startDaemon: "Start daemon",
@@ -404,16 +602,37 @@ export const en = {
     pullModel: "Pull {model}",
     indexStatus: "index status",
     builtStatus: "● built",
+    incompatibleStatus: "● incompatible",
     chunks: "chunks",
     files: "files",
     dim: "dim",
     size: "size",
     lastBuild: "last build",
+    builtWith: "built with",
+    currentTarget: "current target",
+    incompatibleHint:
+      "This on-disk index was built for a different provider or model. Run Rebuild to replace it.",
     runIndexHint: "Run an index to enable semantic_search.",
     reIndex: "Re-index",
     build: "Build",
     rebuild: "Rebuild",
     stop: "Stop",
+    provider: "provider",
+    providerType: "service type",
+    openaiCompat: "openai-compatible",
+    apiUrl: "API URL",
+    apiKey: "API key",
+    apiKeyStoredNote: "API key is stored in ~/.reasonix/config.json — do not share that file.",
+    customRequestBody: "custom request body",
+    invalidCustomRequestBody: "Custom request body must be valid JSON: {error}",
+    customRequestBodyMustBeObject: "Custom request body must be a JSON object.",
+    saveBeforeIndex: "Save semantic settings before starting an index.",
+    extraBody: "extra body",
+    batchSize: "batch size",
+    keepExistingKey: "leave blank to keep existing key",
+    remoteProvider: "Remote embedding provider",
+    remoteProviderDesc:
+      "Configure the full OpenAI-compatible embeddings URL here. Reasonix will send requests exactly to the URL you provide.",
     ollama: "ollama",
     binary: "binary",
     found: "found",
@@ -441,11 +660,14 @@ export const en = {
     nothingSkipped: "nothing skipped — all walked files would be indexed.",
     firstIncluded: "first {count} included file(s)",
     job: "Job",
+    phaseSetup: "preparing",
     phaseScan: "scanning files",
     phaseEmbed: "embedding chunks",
     phaseWrite: "writing index",
     phaseDone: "done",
     phaseError: "error",
+    phaseCancelled: "cancelled",
+    setupFailed: "setup failed",
     stopping: "stopping",
     scanned: "scanned {count}",
     changed: "changed {count}",
@@ -473,7 +695,7 @@ export const en = {
     shellSubtitle: "model wants to run a shell command",
     shellBgSubtitle: "long-running — keeps running after approval",
     runOnce: "Run once",
-    alwaysAllow: "Always allow \"{prefix}\"",
+    alwaysAllow: 'Always allow "{prefix}"',
     deny: "Deny",
     choiceTitle: "model wants you to pick",
     typeOwn: "Type my own answer",
@@ -484,7 +706,8 @@ export const en = {
     cancelSummary: "Drop the question. Model will ask what you actually want.",
     planTitle: "plan submitted",
     planSubtitle: "model proposed a plan; review then pick",
-    approveInstructions: "Optional last instructions / answers to open questions (Enter to send blank)",
+    approveInstructions:
+      "Optional last instructions / answers to open questions (Enter to send blank)",
     refinePlaceholder: "What needs to change? Be specific.",
     approve: "Approve",
     refine: "Refine",
@@ -507,5 +730,32 @@ export const en = {
     reject: "Reject",
     arguments: "arguments",
     revisePlaceholder: "What needs to change before the next step? Leave blank to just continue.",
+    pickerFilter: "Filter…",
+    pickerEmpty: "Nothing to show.",
+    pickerLoadMore: "Load more",
+    pickerPick: "Open",
+    pickerInstall: "Install",
+    pickerUninstall: "Uninstall",
+    pickerRename: "Rename…",
+    pickerNew: "New…",
+    pickerNewPlaceholder: "Name (leave blank for default)",
+    viewerClose: "Close",
+  },
+  error: {
+    title: "Something broke in the dashboard",
+    body: "The TUI is unaffected — only this browser tab tripped. You can dismiss and keep working, or report it so we can fix the underlying cause.",
+    copyDetails: "Copy details",
+    copied: "Copied ✓",
+    reportOnGithub: "Report on GitHub",
+    dismiss: "Dismiss (Esc)",
+    crashing: "this panel keeps crashing — {name}",
+    retry: "Try again",
+    recovering: "recovering…",
+  },
+  fmt: {
+    justNow: "just now",
+    minutesAgo: "{n}m ago",
+    hoursAgo: "{n}h ago",
+    daysAgo: "{n}d ago",
   },
 };

dashboard/src/i18n/zh-CN.ts

@@ -17,7 +17,64 @@ export const zhCN = {
     tabMemory: "记忆",
     tabHooks: "钩子",
     tabSettings: "设置",
+    sectionChanges: "变更",
+    tabChanges: "变更",
     footer: "仅 127.0.0.1 · Token 保护",
+    themeToggle: "切换主题",
+    themeLight: "浅色",
+    themeDark: "深色",
+  },
+  changes: {
+    chatPlaceholder: "询问代码问题…",
+    chatWelcome: "变更 — 询问项目文件相关问题。",
+    chatSend: "发送",
+    viewerPlaceholder: "选择一个文件查看",
+    treeEmpty: "（空）",
+    tabClose: "关闭标签",
+    newConversation: "新建",
+    clearConversation: "清除",
+    newTitle: "/new — 清除对话上下文",
+    clearTitle: "/clear — 仅清除可见的滚动回放",
+    newConfirmBusy: "有轮次正在执行。中止并开始新对话？",
+    newConfirm: "清除当前对话并重新开始？",
+    newToast: "新对话",
+    clearToast: "滚动回放已清除",
+    newFailed: "/new 失败：{error}",
+    clearFailed: "/clear 失败：{error}",
+    chatSendBtn: "发送",
+    fileTreeTitle: "文件",
+    codeViewerTitle: "代码查看器",
+    chatPanelTitle: "对话",
+    loadingFiles: "正在加载项目文件…",
+    review: "审查",
+    allFiles: "所有文件",
+    changes: "更改",
+    commentLabel: "正在评论 第",
+    commentPlaceholder: "添加评论…",
+    commentCancel: "取消",
+    commentSubmit: "评论",
+    commentLine: "第",
+    commentEdit: "编辑",
+    commentDelete: "删除",
+    diffSourceCheckpoint: "检查点",
+    checkpointEmpty: "暂无检查点",
+    restoreBtn: "恢复",
+    restoreConfirm: '确定要恢复检查点"{name}"吗？当前更改将被覆盖。',
+    deleteBtn: "删除",
+    deleteConfirm: '确定要删除检查点"{name}"吗？',
+    createBtn: "创建",
+    createPlaceholder: "检查点名称…",
+    backToList: "返回列表",
+    reviewEmpty: "暂无可审查的更改",
+    diffSourceGit: "Git 变更",
+    diffSourceSession: "上一轮变更",
+    diffStyleUnified: "统一视图",
+    diffStyleSplit: "分栏视图",
+    expandAll: "全部展开",
+    collapseAll: "全部折叠",
+    createFailed: "创建失败",
+    restoreFailed: "恢复失败",
+    deleteFailed: "删除失败",
   },
   common: {
     loading: "加载中…",
@@ -61,8 +118,40 @@ export const zhCN = {
     effortHigh: "high（更便宜 / 更快）",
     webSearch: "网页搜索",
     webSearchNote: "web_fetch + web_search 工具",
+    sectionCompute: "计算",
+    proNext: "/pro 单轮",
+    proArm: "为下一轮装备",
+    proArmed: "已装备 — 下一轮后自动解除",
+    proNextNote: "下一轮使用 deepseek-v4-pro，之后自动解除",
+    sectionBudget: "预算",
+    budgetOf: "/",
+    budgetSetCap: "设置上限",
+    budgetCustom: "自定义",
+    budgetBumpHint: "提高上限以继续",
+    budgetClear: "清除上限",
+    budgetIdleLine: "80% 时提醒 · 100% 后拒绝执行",
+    budgetWarnLine: "接近上限 — 超过 100% 将拒绝执行",
+    budgetRefusing: "已超出上限 — 提高或清除后才会继续",
+    sectionLoop: "循环",
+    loopIdleHint: "按固定间隔自动重新提交一段提示词。",
+    loopCostHint: "每次迭代约 {cost}（上一轮成本）。",
+    loopInterval: "间隔",
+    loopCustom: "自定义",
+    loopRangeError: "间隔需在 5s..6h 之间",
+    loopPrompt: "提示词",
+    loopPromptPlaceholder: "例如：检查部署状态并汇报任何错误",
+    loopStart: "启动循环",
+    loopStop: "停止",
+    loopRunning: "运行中",
+    loopIter: "第 {iter} 次",
+    loopFiresIn: "{remaining} 后触发",
+    sectionSkills: "技能",
+    skillPaths: "技能路径",
+    skillPathsPlaceholder: "/path/to/skills-a, /path/to/skills-b",
+    skillPathsNote: "英文逗号分隔 · 下次 /new 或新会话生效",
     sectionRuntime: "运行时",
     activeModel: "当前模型",
+    modelPricingLine: "${hit} 命中 · ${miss} 未命中 · ${out} 输出  / 100 万 tok",
     editMode: "编辑模式",
     editModeNote: "在对话标签页头部切换",
     sectionLanguage: "语言",
@@ -89,7 +178,8 @@ export const zhCN = {
     clearFailed: "/clear 失败：{error}",
     eventStreamError: "事件流中断 — 正在重连…",
     semanticBanner: "此项目未启用语义搜索。",
-    semanticBannerDesc: "构建一次索引，模型即可按含义查找代码（“哪里处理认证失败？”），而不仅依赖精确字符串的 grep。",
+    semanticBannerDesc:
+      "构建一次索引，模型即可按含义查找代码（“哪里处理认证失败？”），而不仅依赖精确字符串的 grep。",
     semanticBannerBtn: "构建 →",
     semanticBannerDismiss: "关闭（不再显示）",
     slashCommands: "斜杠命令",
@@ -139,12 +229,14 @@ export const zhCN = {
     loading: "加载概览…",
     failed: "概览失败：{error}",
     standaloneTitle: "独立模式",
-    standaloneDesc: "只读磁盘视图。在 reasonix code 内启动 /dashboard 以获取实时会话状态、MCP 和工具。",
+    standaloneDesc:
+      "只读磁盘视图。在 reasonix code 内启动 /dashboard 以获取实时会话状态、MCP 和工具。",
     cockpit: "驾驶舱",
     balance: "余额",
     tokens7d: "tokens · 7 天",
     cacheHit: "缓存命中",
     toolCalls24h: "工具调用 · 24 小时",
+    budget: "预算",
     currentSession: "当前会话",
     noSession: "无活跃会话 — 在 reasonix code 内执行 /dashboard 进行连接。",
     promptTok: "提示 tokens",
@@ -180,12 +272,19 @@ export const zhCN = {
     dailyMeta: "费用 · 缓存节省 · 轮次",
     noData: "暂无用量数据 — 在 reasonix chat / code / run 中执行一轮，然后刷新。",
     windows: "滚动窗口",
+    colWindow: "时间范围",
     colTurns: "轮次",
     colCacheHit: "缓存命中",
     colCost: "费用 (USD)",
     colCacheSaved: "缓存节省",
     colVsClaude: "对比 Claude",
     colSaved: "节省",
+    axisTime: "时间",
+    axisUsd: "美元",
+    axisTurns: "轮次",
+    seriesCost: "费用",
+    seriesCacheSaved: "缓存节省",
+    seriesTurns: "轮次",
     mostUsed: "最常用模型",
     colModel: "模型",
   },
@@ -201,6 +300,16 @@ export const zhCN = {
     loadingTranscript: "加载转录稿…",
     emptyTranscript: "空的转录稿。",
     messages: "{count} 条消息",
+    newBtn: "新建会话",
+    newHint: "归档当前会话并开启新会话",
+    switchBtn: "切换到此会话",
+    deleteBtn: "删除",
+    deleteConfirm: "确定删除会话「{name}」？转录文件将被移除，无法撤销。",
+    cantDeleteActive: "请先切换到其他会话，再删除当前会话。",
+    attachRequired:
+      "实时会话操作需要已连接的 CLI 会话。请通过 reasonix chat 启动，或在 TUI 会话中打开仪表盘。",
+    activeChip: "当前",
+    activePill: "当前",
   },
   tools: {
     loading: "加载工具…",
@@ -213,6 +322,55 @@ export const zhCN = {
     readOnly: "只读",
     write: "写入",
     flat: "扁平",
+    desc: {
+      web_search:
+        "搜索公共网络。返回带标题、URL 和摘要的排序结果。当答案的正确性依赖于当前状态时调用——事件、价格、发布、现实世界的状态。",
+      web_fetch:
+        "下载 URL 并返回其可见文本内容（已剥离脚本/样式/导航）。在 web_search 摘要不够时使用。",
+      run_command:
+        "在项目根目录执行 shell 命令，返回合并的标准输出和标准错误。白名单中的只读命令立即执行；可能修改状态的操作需用户确认。",
+      run_background:
+        "启动一个长时间运行的进程并分离。返回任务 ID 用于查看日志、等待完成或终止。用于开发服务器、文件监听器和一次性长时间任务。",
+      job_output: "读取后台任务的最新输出。返回缓冲区末尾内容并告知任务是否仍在运行。",
+      wait_for_job: "在服务端阻塞直到后台任务完成（有超时限制）。用于替代轮询 job_output。",
+      stop_job: "停止后台任务。先发送 SIGTERM，宽限期后发送 SIGKILL。可安全调用已退出的任务。",
+      list_jobs: "列出本次会话启动的所有后台任务——运行中和已退出的——包含 ID、命令、PID 和状态。",
+      remember:
+        "保存一条记忆供未来会话使用。当用户陈述偏好、纠正你的方法、分享非显而易见的事实或要求你记住某事时使用。",
+      forget:
+        "删除记忆文件并从 MEMORY.md 中移除。当用户要求忘记某事或之前记住的事实已不再正确时使用。",
+      recall_memory: "当记忆文件的一行摘要不够详细时，读取其完整内容。",
+      read_file:
+        "读取沙箱根目录下的文件。支持 head/tail/range 范围读取以节省上下文。超过 200 行的文件自动返回预览。",
+      list_directory: "列出目录中的条目。每行一个条目，目录以斜杠标记。",
+      directory_tree: "递归列出目录中的条目，以缩进树形结构显示。对大子目录自动折叠以节省预算。",
+      search_files: "根据名称匹配子串或正则表达式查找文件。不区分大小写。默认跳过依赖/构建目录。",
+      search_content:
+        "递归搜索文件内容中的子串或正则表达式。以 path:line:text 格式返回匹配结果。查找引用的正确工具。",
+      glob: "按 glob 模式列出文件，按修改时间排序。默认限制 200，最大 1000。默认跳过 node_modules/.git/dist。",
+      get_file_info: "获取沙箱根目录下路径的状态信息。返回类型、字节大小和修改时间。",
+      write_file: "创建或覆盖文件，内容由参数指定。按需创建父目录。",
+      edit_file: "对现有文件应用 SEARCH/REPLACE 编辑。搜索必须完全匹配且在文件中唯一。",
+      multi_edit:
+        "跨一个或多个文件原子性地应用 N 个 SEARCH/REPLACE 编辑。如果任何编辑失败，不写入任何文件。",
+      create_directory: "在沙箱根目录下创建目录（以及任何缺失的父目录）。",
+      move_file: "重命名或移动沙箱根目录下的文件或目录。",
+      delete_file: "删除沙箱根目录下的一个文件。拒绝目录——请使用 delete_directory 删除目录。",
+      delete_directory: "递归删除沙箱根目录下的目录。传入 recursive:false 可拒绝非空目录。",
+      copy_file: "复制沙箱根目录下的文件或目录。拒绝覆盖已存在的目标。",
+      submit_plan:
+        "提交一个具体的计划以供审查审批。用于多文件重构、架构变更或任何撤销代价高昂的操作。",
+      mark_step_complete: "将已批准计划的一个步骤标记为完成。完成每个步骤后恰好调用一次。",
+      revise_plan: "外科手术式替换进行中计划的剩余步骤。已完成的步骤永远不会被触及。",
+      run_skill:
+        "从技能索引中调用一个 playbook。传入裸技能名称。标记为子代理的技能将启动独立的子代理。",
+      spawn_subagent: "为一个独立子任务启动隔离的子代理。用于并行分发或需要大量文件读取的工作。",
+      todo_write: "多步工作的会话内任务跟踪器。每次调用替换整个列表。无审批关卡，不写入文件。",
+      ask_choice: "向用户展示 2-6 个选项。当用户要求选择或需要偏好决策时使用。",
+      create_skill: "创建一个新技能，用户可通过 /skill 命令调用。支持内联和子代理两种运行模式。",
+      add_mcp_server:
+        "在用户配置中注册新的 MCP 服务器。下次会话生效。支持 stdio、SSE 和 streamable-http。",
+    },
   },
   permissions: {
     loading: "加载权限…",
@@ -222,20 +380,21 @@ export const zhCN = {
     project: "项目",
     builtin: "内置",
     addPrefix: "添加前缀",
-    addPlaceholder: "例如 \"npm run build\" 或 \"deploy.sh\"",
+    addPlaceholder: '例如 "npm run build" 或 "deploy.sh"',
     clearAll: "清除全部",
     alreadyIn: "{prefix} 已在列表中",
     added: "已添加：{prefix}",
     removed: "已移除：{prefix}",
     cleared: "已清除 {count} 条",
-    removeConfirm: "从此项目的允许列表中移除 \"{prefix}\"？",
+    removeConfirm: '从此项目的允许列表中移除 "{prefix}"？',
     clearConfirm: "清除所有项目允许列表条目？内置条目不受影响。",
     projectAllowlist: "项目允许列表 · {count}",
     nothingStored: "此项目暂无存储的条目。",
     colNum: "#",
     colPrefix: "前缀",
     builtinTitle: "内置 · {count} · 只读",
-    standaloneWarning: "修改操作需要在活跃的 reasonix code 会话内执行 /dashboard — 独立模式的 reasonix dashboard 无法确定要编辑哪个项目的允许列表。",
+    standaloneWarning:
+      "修改操作需要在活跃的 reasonix code 会话内执行 /dashboard — 独立模式的 reasonix dashboard 无法确定要编辑哪个项目的允许列表。",
   },
   mcp: {
     loading: "加载 MCP…",
@@ -255,8 +414,13 @@ export const zhCN = {
     removeBtn: "移除",
     spec: "规格",
     whyUnbridged: "为什么未桥接？",
-    whyUnbridgedDesc: "此规格存在于您的 config.json 中，但未桥接到实时会话。MCP 服务器在 reasonix code 启动时连接；仪表盘本身无法生成子进程。",
+    whyUnbridgedDesc:
+      "此规格存在于您的 config.json 中，但未桥接到实时会话。MCP 服务器在 reasonix code 启动时连接；仪表盘本身无法生成子进程。",
     whyUnbridgedHint: "激活方法：重启 reasonix code，然后刷新此仪表盘。",
+    bridgeFailed: "桥接失败",
+    bridgeFailedTitle: "桥接失败 · 在配置中",
+    bridgeFailedHint:
+      "已尝试桥接但失败。常见原因：URL 错误、需要鉴权、上游 404 / 5xx、本地命令缺失。修复后重启 reasonix code 重试。",
     pickHint: "选择左侧的 MCP 服务器以检查工具 / 资源 / 提示。",
     toolsTitle: "工具 · {count}",
     resourcesTitle: "资源 · {count}",
@@ -283,13 +447,16 @@ export const zhCN = {
     marketplaceAlready: "已安装过",
     marketplaceNeedsEnv: "需设置环境变量：{names}",
     marketplaceSourceTag: "[{source}]",
-    marketplaceNoInstall: "Smithery 列表项 — 不暴露安装元数据；请直接 `npx -y @smithery/cli install {name}`",
-    marketplaceFetchOnInstall: "Smithery 列表 — 安装时再拉详情。HTTP 服务映射为 streamable-http 远端；stdio 服务通过 @smithery/cli 运行。",
+    marketplaceNoInstall:
+      "Smithery 列表项 — 不暴露安装元数据；请直接 `npx -y @smithery/cli install {name}`",
+    marketplaceFetchOnInstall:
+      "Smithery 列表 — 安装时再拉详情。HTTP 服务映射为 streamable-http 远端；stdio 服务通过 @smithery/cli 运行。",
     marketplaceInstalledBadge: "已安装",
     marketplaceUninstall: "卸载",
     marketplaceEnvTitle: "必需的环境变量",
     marketplaceEnvHint: "下次启动 `reasonix code` 之前在 shell 里设好，桥接的服务器才能正常鉴权。",
-    marketplaceRestartHint: "已写入 ~/.reasonix/config.json。重启 `reasonix code` 后服务器才会真正桥接（热重载在路线图上）。",
+    marketplaceRestartHint:
+      "已写入 ~/.reasonix/config.json。重启 `reasonix code` 后服务器才会真正桥接（热重载在路线图上）。",
   },
   memory: {
     loading: "加载记忆…",
@@ -325,6 +492,7 @@ export const zhCN = {
     loading: "加载技能…",
     filterPlaceholder: "筛选技能",
     project: "项目",
+    custom: "自定义",
     global: "全局",
     builtin: "内置",
     newSkill: "新技能",
@@ -332,7 +500,9 @@ export const zhCN = {
     runs7d: "次运行 · 7 天",
     pickHint: "选择左侧的技能，或在上方创建新技能。",
     readOnlyBuiltin: "只读 · 内置",
-    builtinDesc: "内置技能随 Reasonix 一起发布；模型会自动识别。如需自定义，请创建同名的项目或全局技能。",
+    readOnlyCustom: "只读 · 自定义路径",
+    builtinDesc:
+      "内置技能随 Reasonix 一起发布；模型会自动识别。如需自定义，请创建同名的项目或全局技能。",
     saved: "已保存 {scope}/{name}",
     deleteConfirm: "删除技能 {scope}/{name}？",
     reloadHint: "在下次 /new 或会话重启时重新加载",
@@ -375,6 +545,7 @@ export const zhCN = {
     filterPlaceholder: "筛选计划",
     active: "进行中",
     done: "已完成",
+    idle: "未开始",
     steps: "步骤",
     pickHint: "选择左侧的计划。",
     noTitle: "（无标题）",
@@ -404,16 +575,37 @@ export const zhCN = {
     pullModel: "拉取 {model}",
     indexStatus: "索引状态",
     builtStatus: "● 已构建",
+    incompatibleStatus: "● 不兼容",
     chunks: "分块",
     files: "文件",
     dim: "维度",
     size: "大小",
     lastBuild: "上次构建",
+    builtWith: "构建来源",
+    currentTarget: "当前目标",
+    incompatibleHint:
+      "磁盘上的这个索引是为不同的 provider 或 model 构建的。运行“完全重建”即可替换。",
     runIndexHint: "运行索引以启用 semantic_search。",
     reIndex: "重建索引",
     build: "构建",
     rebuild: "完全重建",
     stop: "停止",
+    provider: "提供方",
+    providerType: "服务类型",
+    openaiCompat: "OpenAI-Compatible",
+    apiUrl: "API URL",
+    apiKey: "API Key",
+    apiKeyStoredNote: "API Key 仅保存在本地，不会发送到第三方。",
+    customRequestBody: "自定义请求体",
+    invalidCustomRequestBody: "自定义请求体必须是合法 JSON：{error}",
+    customRequestBodyMustBeObject: "自定义请求体必须是 JSON 对象。",
+    saveBeforeIndex: "请先保存语义设置，再启动索引。",
+    extraBody: "扩展请求体",
+    batchSize: "批次大小",
+    keepExistingKey: "留空则保留现有 Key",
+    remoteProvider: "远程向量服务",
+    remoteProviderDesc:
+      "在这里配置 OpenAI-Compatible embeddings 的完整 URL。Reasonix 会严格使用你提供的 URL 发起请求。",
     ollama: "Ollama",
     binary: "二进制",
     found: "已找到",
@@ -441,11 +633,14 @@ export const zhCN = {
     nothingSkipped: "无跳过 — 所有遍历的文件都将被索引。",
     firstIncluded: "前 {count} 个包含的文件",
     job: "任务",
+    phaseSetup: "初始化中",
     phaseScan: "扫描文件",
     phaseEmbed: "嵌入分块",
     phaseWrite: "写入索引",
     phaseDone: "完成",
     phaseError: "错误",
+    phaseCancelled: "已停止",
+    setupFailed: "初始化失败",
     stopping: "停止中",
     scanned: "已扫描 {count}",
     changed: "已变更 {count}",
@@ -473,7 +668,7 @@ export const zhCN = {
     shellSubtitle: "模型想要运行一条 Shell 命令",
     shellBgSubtitle: "长时间运行 — 批准后继续运行",
     runOnce: "运行一次",
-    alwaysAllow: "始终允许 \"{prefix}\"",
+    alwaysAllow: '始终允许 "{prefix}"',
     deny: "拒绝",
     choiceTitle: "模型需要您选择",
     typeOwn: "输入自定义回答",
@@ -507,5 +702,32 @@ export const zhCN = {
     reject: "拒绝",
     arguments: "参数",
     revisePlaceholder: "下一步之前需要更改什么？留空则直接继续。",
+    pickerFilter: "过滤…",
+    pickerEmpty: "暂无内容。",
+    pickerLoadMore: "加载更多",
+    pickerPick: "打开",
+    pickerInstall: "安装",
+    pickerUninstall: "卸载",
+    pickerRename: "重命名…",
+    pickerNew: "新建…",
+    pickerNewPlaceholder: "名称（留空使用默认）",
+    viewerClose: "关闭",
+  },
+  error: {
+    title: "仪表盘出错了",
+    body: "TUI 不受影响——只有这个浏览器标签出了问题。通常可以直接关闭并继续使用，不会打断智能体。",
+    copyDetails: "复制详情",
+    copied: "已复制 ✓",
+    reportOnGithub: "在 GitHub 上报告",
+    dismiss: "关闭 (Esc)",
+    crashing: "此面板持续崩溃 — {name}",
+    retry: "重试",
+    recovering: "恢复中…",
+  },
+  fmt: {
+    justNow: "刚刚",
+    minutesAgo: "{n} 分钟前",
+    hoursAgo: "{n} 小时前",
+    daysAgo: "{n} 天前",
   },
 };

dashboard/src/lib/budget.ts

@@ -0,0 +1,45 @@
+export type BudgetState =
+  | { kind: "off"; spent: number }
+  | { kind: "running"; cap: number; spent: number; pct: number }
+  | { kind: "warn"; cap: number; spent: number; pct: number }
+  | { kind: "exhausted"; cap: number; spent: number; pct: number };
+
+export function deriveBudgetState(
+  cap: number | null | undefined,
+  spent: number | null | undefined,
+): BudgetState {
+  const safeSpent = typeof spent === "number" && spent >= 0 ? spent : 0;
+  if (typeof cap !== "number" || cap <= 0) {
+    return { kind: "off", spent: safeSpent };
+  }
+  const pct = (safeSpent / cap) * 100;
+  if (pct >= 100) return { kind: "exhausted", cap, spent: safeSpent, pct };
+  if (pct >= 80) return { kind: "warn", cap, spent: safeSpent, pct };
+  return { kind: "running", cap, spent: safeSpent, pct };
+}
+
+/** Default quick-cap menu — round dollar amounts users actually pick. */
+export const QUICK_CAPS_USD: ReadonlyArray<number> = [1, 5, 10, 25, 50];
+
+/** 1.5× / 2× / 4× the current cap, snapped to a "nice" round number per bucket. */
+export function bumpSuggestions(currentCap: number): number[] {
+  if (currentCap <= 0) return [];
+  return [niceUp(currentCap * 1.5), niceUp(currentCap * 2), niceUp(currentCap * 4)];
+}
+
+function niceUp(n: number): number {
+  // Subtract a tiny epsilon before ceil so FP noise (0.4 * 1.5 = 0.6000…01)
+  // doesn't bump a value to the next bucket.
+  const eps = 1e-9;
+  if (n < 1) return Math.ceil((n - eps) * 10) / 10;
+  if (n < 10) return Math.ceil((n - eps) * 2) / 2;
+  if (n < 100) return Math.ceil(n - eps);
+  return Math.ceil((n - eps) / 5) * 5;
+}
+
+/** Tone class shared between the cockpit tile and the settings gauge. */
+export function budgetTone(state: BudgetState): "" | "warn" | "err" {
+  if (state.kind === "exhausted") return "err";
+  if (state.kind === "warn") return "warn";
+  return "";
+}

dashboard/src/lib/bus-filter.ts

@@ -0,0 +1,13 @@
+/** Browser extensions (userscripts, ad blockers) inject scripts that throw into our window. Their errors land in the global handlers as if they were ours — see #818. Filter them by origin. */
+const THIRD_PARTY_ORIGIN_PREFIXES = [
+  "chrome-extension://",
+  "moz-extension://",
+  "safari-web-extension://",
+  "safari-extension://",
+  "ms-browser-extension://",
+];
+
+export function isThirdPartyError(error: unknown, filename?: string): boolean {
+  const hay = `${filename ?? ""}\n${(error as { stack?: string } | null)?.stack ?? ""}`;
+  return THIRD_PARTY_ORIGIN_PREFIXES.some((prefix) => hay.includes(prefix));
+}

dashboard/src/lib/bus.ts

@@ -1,6 +1,7 @@
 import htm from "htm";
 import { h } from "preact";
 import { useEffect, useState } from "preact/hooks";
+import { isThirdPartyError } from "./bus-filter.js";
 
 const html = htm.bind(h);
 
@@ -29,10 +30,12 @@ export function reportAppError(error: unknown, source: string, info?: string): v
 
 window.addEventListener("error", (ev) => {
   if (!ev.error) return;
+  if (isThirdPartyError(ev.error, ev.filename)) return;
   reportAppError(ev.error, "window", ev.message);
 });
 
 window.addEventListener("unhandledrejection", (ev) => {
+  if (isThirdPartyError(ev.reason)) return;
   reportAppError(ev.reason, "promise");
 });
 

dashboard/src/lib/diff-parser.ts

@@ -0,0 +1,80 @@
+export type HunkLineType = "add" | "del" | "ctx";
+
+export interface HunkLine {
+  type: HunkLineType;
+  content: string;
+  oldLineNum?: number;
+  newLineNum?: number;
+}
+
+export interface Hunk {
+  oldStart: number;
+  oldLines: number;
+  newStart: number;
+  newLines: number;
+  lines: HunkLine[];
+}
+
+/** Parse a unified diff patch string into structured hunk arrays. No external deps. */
+export function parseHunks(patch: string): Hunk[] {
+  if (!patch) return [];
+
+  const hunks: Hunk[] = [];
+  const rawLines = patch.split("\n");
+  let cursor = 0;
+
+  // Skip file headers (--- a/..., +++ b/...)
+  while (cursor < rawLines.length) {
+    const line = rawLines[cursor]!;
+
+    // Start of a hunk: @@ -oldStart[,oldLines] +newStart[,newLines] @@
+    const m = /^@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/.exec(line);
+    if (m) {
+      const oldStart = parseInt(m[1]!, 10);
+      const oldLen = m[2] !== undefined ? parseInt(m[2], 10) : 1;
+      const newStart = parseInt(m[3]!, 10);
+      const newLen = m[4] !== undefined ? parseInt(m[4], 10) : 1;
+
+      const lines: HunkLine[] = [];
+      let oldNum = oldStart;
+      let newNum = newStart;
+
+      cursor++;
+      while (
+        cursor < rawLines.length &&
+        !rawLines[cursor]!.startsWith("@@ ") &&
+        !rawLines[cursor]!.startsWith("diff ") &&
+        !rawLines[cursor]!.startsWith("--- ") &&
+        !rawLines[cursor]!.startsWith("index ")
+      ) {
+        const l = rawLines[cursor]!;
+        if (l.startsWith("\\")) {
+          cursor++;
+          continue;
+        }
+
+        const ch = l[0]!;
+        const content = l.slice(1);
+
+        if (ch === "-") {
+          lines.push({ type: "del", content, oldLineNum: oldNum });
+          oldNum++;
+        } else if (ch === "+") {
+          lines.push({ type: "add", content, newLineNum: newNum });
+          newNum++;
+        } else {
+          lines.push({ type: "ctx", content, oldLineNum: oldNum, newLineNum: newNum });
+          oldNum++;
+          newNum++;
+        }
+        cursor++;
+      }
+
+      hunks.push({ oldStart, oldLines: oldLen, newStart, newLines: newLen, lines });
+    } else {
+      cursor++;
+    }
+  }
+
+  return hunks;
+}

dashboard/src/lib/error-boundary.ts

@@ -1,6 +1,7 @@
 import htm from "htm";
 import { Component, type ComponentChildren, h } from "preact";
 import { useEffect, useState } from "preact/hooks";
+import { t } from "../i18n/index.js";
 import { MODE } from "./api.js";
 import { type ErrorReport, appBus, reportAppError } from "./bus.js";
 
@@ -80,7 +81,7 @@ export function ErrorOverlay() {
         <div class="error-overlay-head">
           <span class="error-overlay-icon">✦</span>
           <div>
-            <div class="error-overlay-title">Something broke in the dashboard</div>
+            <div class="error-overlay-title">${t("error.title")}</div>
             <div class="error-overlay-subtitle">${err.source} error · ${errMsg}</div>
           </div>
         </div>
@@ -94,19 +95,17 @@ export function ErrorOverlay() {
         }
 
         <div class="error-overlay-help">
-          The TUI is unaffected — only this browser tab tripped. You can
-          dismiss and keep working, or report it so we can fix the
-          underlying cause.
+          ${t("error.body")}
         </div>
 
         <div class="error-overlay-actions">
           <button class="primary" onClick=${copyDetails}>
-            ${copied ? "Copied ✓" : "Copy details"}
+            ${copied ? t("error.copied") : t("error.copyDetails")}
           </button>
           <a class="button" href=${issueUrl} target="_blank" rel="noopener noreferrer">
-            Report on GitHub
+            ${t("error.reportOnGithub")}
           </a>
-          <button onClick=${() => setErr(null)} style="margin-left: auto;">Dismiss (Esc)</button>
+          <button onClick=${() => setErr(null)} style="margin-left: auto;">${t("error.dismiss")}</button>
         </div>
       </div>
     </div>
@@ -145,14 +144,14 @@ export class ErrorBoundary extends Component<ErrorBoundaryProps, ErrorBoundarySt
       if ((this.state.attempts ?? 0) >= 3) {
         return html`
           <div class="boot" style="flex-direction: column; gap: 12px;">
-            <div>this panel keeps crashing — the error overlay has the trace.</div>
+            <div>${t("error.crashing", { name: "the error overlay has the trace" })}</div>
             <button onClick=${() => this.setState({ caught: false, attempts: 0 })}>
-              Try again
+              ${t("error.retry")}
             </button>
           </div>
         `;
       }
-      return html`<div class="boot">recovering…</div>`;
+      return html`<div class="boot">${t("error.recovering")}</div>`;
     }
     return this.props.children;
   }

dashboard/src/lib/file-tree.ts

@@ -0,0 +1,232 @@
+import { h } from "preact";
+import { useState, useCallback, useEffect } from "preact/hooks";
+import htm from "htm";
+import { api, MODE } from "./api.js";
+
+const html = htm.bind(h);
+
+export interface TreeNode {
+  name: string;
+  path: string;
+  isDir: boolean;
+  children?: TreeNode[];
+}
+
+export interface OpenFile {
+  path: string;
+  name: string;
+  content: string;
+  language: string;
+}
+
+const EXT_ICONS: Record<string, string> = {
+  ts: "TS", tsx: "TS", js: "JS", jsx: "JS",
+  json: "{}", css: "#", scss: "#", html: "<>",
+  md: "MD", py: "PY", rs: "RS", go: "GO",
+  yaml: "Y", yml: "Y", toml: "T", xml: "<>",
+  svg: "<>", png: "[]", jpg: "[]", ico: "[]",
+  sh: "$", bash: "$", ps1: "$", bat: "$",
+  sql: "DB", graphql: "GQ", proto: "PB",
+  dockerfile: "D", makefile: "MK",
+};
+
+const EXT_LANG: Record<string, string> = {
+  ts: "typescript", tsx: "typescript", js: "javascript", jsx: "javascript",
+  json: "json", css: "css", scss: "scss", html: "html",
+  md: "markdown", py: "python", rs: "rust", go: "go",
+  yaml: "yaml", yml: "yaml", toml: "toml", xml: "xml",
+  sh: "bash", bash: "bash", ps1: "powershell", bat: "batch",
+  sql: "sql", graphql: "graphql", proto: "protobuf",
+  dockerfile: "dockerfile", makefile: "makefile",
+};
+
+export function getFileIcon(name: string): { icon: string; cls: string } {
+  const ext = name.split(".").pop()?.toLowerCase() ?? "";
+  const icon = EXT_ICONS[ext] ?? "·";
+  const cls = ext || "file";
+  return { icon, cls };
+}
+
+export function getLanguage(name: string): string {
+  const ext = name.split(".").pop()?.toLowerCase() ?? "";
+  return EXT_LANG[ext] ?? ext;
+}
+
+function isBinaryExt(name: string): boolean {
+  const ext = name.split(".").pop()?.toLowerCase() ?? "";
+  const binary = new Set(["png", "jpg", "jpeg", "gif", "ico", "svg", "woff", "woff2", "ttf", "eot", "mp4", "webm", "mp3", "wav", "zip", "tar", "gz", "7z", "pdf"]);
+  return binary.has(ext);
+}
+
+interface ProjectTreeResult {
+  tree: TreeNode[];
+}
+
+export function useProjectTree() {
+  const [tree, setTree] = useState<TreeNode[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    if (MODE === "standalone") {
+      setLoading(false);
+      setTree(createDemoTree());
+      return;
+    }
+    let cancelled = false;
+    api<ProjectTreeResult>("/project-tree")
+      .then((r) => {
+        if (!cancelled) {
+          setTree(r.tree);
+          setLoading(false);
+        }
+      })
+      .catch((err) => {
+        if (!cancelled) {
+          setError((err as Error).message);
+          setLoading(false);
+          setTree(createDemoTree());
+        }
+      });
+    return () => { cancelled = true; };
+  }, []);
+
+  return { tree, loading, error };
+}
+
+interface FileReadResult {
+  content: string;
+  path: string;
+  size: number;
+}
+
+interface FileLoadingState {
+  [path: string]: boolean;
+}
+
+export function useFileTreeState(initialTree: TreeNode[]) {
+  const [expanded, setExpanded] = useState<Set<string>>(new Set());
+  const [openFiles, setOpenFiles] = useState<OpenFile[]>([]);
+  const [activeFilePath, setActiveFilePath] = useState<string | null>(null);
+  const [loadingFiles, setLoadingFiles] = useState<FileLoadingState>({});
+
+  const toggleExpand = useCallback((path: string) => {
+    setExpanded((prev) => {
+      const next = new Set(prev);
+      if (next.has(path)) next.delete(path);
+      else next.add(path);
+      return next;
+    });
+  }, []);
+
+  const openFile = useCallback(async (node: TreeNode) => {
+    if (node.isDir) {
+      toggleExpand(node.path);
+      return;
+    }
+    if (isBinaryExt(node.name)) return;
+
+    const existing = openFiles.find((f) => f.path === node.path);
+    if (existing) {
+      setActiveFilePath(node.path);
+      return;
+    }
+
+    if (loadingFiles[node.path]) return;
+
+    setLoadingFiles((prev) => ({ ...prev, [node.path]: true }));
+
+    const lang = getLanguage(node.name);
+
+    if (MODE === "standalone") {
+      const mockContent = generateMockContent(node.name, lang);
+      setOpenFiles((prev) => [...prev, { path: node.path, name: node.name, content: mockContent, language: lang }]);
+      setActiveFilePath(node.path);
+      setLoadingFiles((prev) => {
+        const next = { ...prev };
+        delete next[node.path];
+        return next;
+      });
+      return;
+    }
+
+    try {
+      const encodedPath = node.path.split("/").map(encodeURIComponent).join("/");
+      const data = await api<FileReadResult>(`/file/${encodedPath}`);
+      setOpenFiles((prev) => [...prev, { path: node.path, name: node.name, content: data.content, language: lang }]);
+      setActiveFilePath(node.path);
+    } catch (err) {
+      console.error(`[file-tree] failed to load ${node.path}:`, err);
+      setOpenFiles((prev) => [...prev, { path: node.path, name: node.name, content: `// Failed to load file: ${(err as Error).message}\n`, language: lang }]);
+      setActiveFilePath(node.path);
+    } finally {
+      setLoadingFiles((prev) => {
+        const next = { ...prev };
+        delete next[node.path];
+        return next;
+      });
+    }
+  }, [openFiles, toggleExpand, loadingFiles]);
+
+  const closeFile = useCallback((path: string) => {
+    setOpenFiles((prev) => {
+      const next = prev.filter((f) => f.path !== path);
+      if (activeFilePath === path) {
+        const lastFile = next[next.length - 1];
+        setActiveFilePath(lastFile ? lastFile.path : null);
+      }
+      return next;
+    });
+  }, [activeFilePath]);
+
+  const activeFile = openFiles.find((f) => f.path === activeFilePath) ?? null;
+
+  return { expanded, openFiles, activeFilePath, activeFile, toggleExpand, openFile, closeFile, setActiveFilePath, loadingFiles };
+}
+
+function generateMockContent(name: string, lang: string): string {
+  const ext = name.split(".").pop()?.toLowerCase() ?? "";
+  if (ext === "json") return JSON.stringify({ name: "example", version: "1.0.0", dependencies: { react: "^18.0.0" } }, null, 2);
+  if (ext === "md") return "# Example Document\n\nThis is a sample markdown file.\n\n## Section\n\n- Item 1\n- Item 2\n\n```js\nconsole.log(\"hello\");\n```";
+  if (ext === "css") return "/* styles */\n.container {\n  display: flex;\n  padding: 16px;\n  color: var(--fg-1);\n}";
+  if (ext === "html") return "<!doctype html>\n<html>\n<head><title>Example</title></head>\n<body>\n  <h1>Hello</h1>\n</body>\n</html>";
+  if (ext === "py") return "def hello():\n    print('Hello, World!')\n\nif __name__ == '__main__':\n    hello()";
+  if (ext === "yaml" || ext === "yml") return "name: example\nversion: '1.0'\nservices:\n  app:\n    image: node:18\n    ports:\n      - '3000:3000'";
+  return `// ${name}\n// Language: ${lang}\n\nexport function example() {\n  return \"Hello from ${name}\";\n}\n`;
+}
+
+export function createDemoTree(): TreeNode[] {
+  return [
+    {
+      name: "src", path: "src", isDir: true, children: [
+        { name: "index.ts", path: "src/index.ts", isDir: false },
+        { name: "app.tsx", path: "src/app.tsx", isDir: false },
+        { name: "config.ts", path: "src/config.ts", isDir: false },
+        {
+          name: "components", path: "src/components", isDir: true, children: [
+            { name: "Header.tsx", path: "src/components/Header.tsx", isDir: false },
+            { name: "Sidebar.tsx", path: "src/components/Sidebar.tsx", isDir: false },
+            { name: "Button.tsx", path: "src/components/Button.tsx", isDir: false },
+          ]
+        },
+        {
+          name: "lib", path: "src/lib", isDir: true, children: [
+            { name: "api.ts", path: "src/lib/api.ts", isDir: false },
+            { name: "format.ts", path: "src/lib/format.ts", isDir: false },
+          ]
+        },
+      ]
+    },
+    {
+      name: "tests", path: "tests", isDir: true, children: [
+        { name: "app.test.ts", path: "tests/app.test.ts", isDir: false },
+        { name: "utils.test.ts", path: "tests/utils.test.ts", isDir: false },
+      ]
+    },
+    { name: "package.json", path: "package.json", isDir: false },
+    { name: "tsconfig.json", path: "tsconfig.json", isDir: false },
+    { name: "README.md", path: "README.md", isDir: false },
+    { name: "styles.css", path: "styles.css", isDir: false },
+    { name: "index.html", path: "index.html", isDir: false },
+  ];
+}

dashboard/src/lib/format.ts

@@ -1,9 +1,29 @@
+import { t } from "../i18n/index.js";
+
 export function fmtUsd(n: number | null | undefined): string {
   if (n === null || n === undefined) return "—";
   if (n === 0) return "$0";
   return `$${n.toFixed(n < 0.01 ? 6 : 4)}`;
 }
 
+/** Keep in sync with src/cli/ui/theme/tokens.ts USD_TO_CNY. */
+const USD_TO_CNY = 7.2;
+
+/** USD-internal cost rendered in the wallet's display currency. Undefined currency → CNY (matches CLI default). */
+export function fmtCost(
+  usd: number | null | undefined,
+  currency: string | null | undefined,
+  fractionDigits?: number,
+): string {
+  if (usd === null || usd === undefined) return "—";
+  const cur = currency ?? "CNY";
+  const amount = cur === "CNY" ? usd * USD_TO_CNY : usd;
+  if (amount === 0) return cur === "CNY" ? "¥0" : "$0";
+  const sym = cur === "CNY" ? "¥" : cur === "USD" ? "$" : `${cur} `;
+  const digits = fractionDigits ?? (Math.abs(amount) < 0.01 ? 6 : 4);
+  return `${sym}${amount.toFixed(digits)}`;
+}
+
 export function fmtPct(n: number | null | undefined): string {
   if (n === null || n === undefined) return "—";
   return `${(n * 100).toFixed(1)}%`;
@@ -41,9 +61,9 @@ export function fmtRelativeTime(iso: string | number | null | undefined): string
   const ms = typeof iso === "number" ? iso : Date.parse(iso);
   if (!Number.isFinite(ms)) return "—";
   const dSec = (Date.now() - ms) / 1000;
-  if (dSec < 60) return "just now";
-  if (dSec < 3600) return `${Math.floor(dSec / 60)}m ago`;
-  if (dSec < 86400) return `${Math.floor(dSec / 3600)}h ago`;
-  if (dSec < 30 * 86400) return `${Math.floor(dSec / 86400)}d ago`;
+  if (dSec < 60) return t("fmt.justNow");
+  if (dSec < 3600) return t("fmt.minutesAgo", { n: Math.floor(dSec / 60) });
+  if (dSec < 86400) return t("fmt.hoursAgo", { n: Math.floor(dSec / 3600) });
+  if (dSec < 30 * 86400) return t("fmt.daysAgo", { n: Math.floor(dSec / 86400) });
   return new Date(ms).toISOString().slice(0, 10);
 }

dashboard/src/lib/i18n.ts

@@ -16,7 +16,6 @@ const TO_BACKEND = new Map(LANG_REGISTRY);
 const FROM_BACKEND = new Map(LANG_REGISTRY.map(([d, b]) => [b, d]));
 
 const STORAGE_KEY = "rx.lang";
-const EXPLICIT_KEY = "rx.langExplicit";
 const listeners: Listener[] = [];
 let currentLang: DashboardLang = loadFromStorage() ?? "en";
 
@@ -30,22 +29,6 @@ function loadFromStorage(): DashboardLang | null {
   return null;
 }
 
-function isExplicit(): boolean {
-  try {
-    return localStorage.getItem(EXPLICIT_KEY) === "1";
-  } catch {
-    return false;
-  }
-}
-
-function markExplicit(): void {
-  try {
-    localStorage.setItem(EXPLICIT_KEY, "1");
-  } catch {
-    /* ignore */
-  }
-}
-
 function toBackendLang(lang: DashboardLang): string {
   return TO_BACKEND.get(lang) ?? lang;
 }
@@ -54,23 +37,12 @@ function fromBackendLang(raw: string): DashboardLang {
   return (FROM_BACKEND.get(raw) as DashboardLang) ?? "en";
 }
 
-/** Fetch lang from backend on startup. */
+/** Adopt server lang on startup; localStorage is render-cache only, never pushed back. */
 export async function initLangFromServer(): Promise<void> {
   try {
-    const stored = loadFromStorage();
     const res = await api<{ lang?: string }>("/settings");
     const serverLang = res.lang ? fromBackendLang(res.lang) : null;
-
-    if (!serverLang || stored === serverLang) return;
-
-    if (isExplicit() && stored) {
-      // User explicitly chose a language — push to server.
-      api("/settings", { method: "POST", body: { lang: toBackendLang(stored) } })
-        .catch((err) => console.error("[reasonix dashboard] lang sync:", err));
-      return;
-    }
-
-    // No explicit choice yet (first visit or cleared storage) — adopt server value.
+    if (!serverLang || serverLang === currentLang) return;
     currentLang = serverLang;
     try {
       localStorage.setItem(STORAGE_KEY, serverLang);
@@ -79,7 +51,7 @@ export async function initLangFromServer(): Promise<void> {
     }
     for (const cb of listeners) cb();
   } catch {
-    /* offline — keep localStorage value */
+    /* offline — keep last-known value rendering */
   }
 }
 
@@ -90,7 +62,6 @@ export function getLang(): DashboardLang {
 export function setLang(lang: DashboardLang): void {
   if (!SUPPORTED.has(lang)) return;
   currentLang = lang;
-  markExplicit();
   try {
     localStorage.setItem(STORAGE_KEY, lang);
   } catch {

dashboard/src/lib/line-comments.ts

@@ -0,0 +1,90 @@
+import { useState, useCallback } from "preact/hooks";
+
+export interface LineComment {
+  id: string;
+  file: string;
+  lineNumber: number;
+  content: string;
+  timestamp: number;
+}
+
+export interface LineCommentDraft {
+  file: string;
+  lineNumber: number;
+  content: string;
+  editingId?: string;
+}
+
+export function useLineComments() {
+  const [comments, setComments] = useState<LineComment[]>([]);
+  const [draft, setDraft] = useState<LineCommentDraft | null>(null);
+
+  const addComment = useCallback((file: string, lineNumber: number, content: string) => {
+    const id = `comment-${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;
+    setComments((prev) => [...prev, { id, file, lineNumber, content, timestamp: Date.now() }]);
+    setDraft(null);
+  }, []);
+
+  const updateComment = useCallback((id: string, content: string) => {
+    setComments((prev) => prev.map((c) => (c.id === id ? { ...c, content } : c)));
+  }, []);
+
+  const deleteComment = useCallback((id: string) => {
+    setComments((prev) => prev.filter((c) => c.id !== id));
+  }, []);
+
+  const startDraft = useCallback((file: string, lineNumber: number) => {
+    setDraft({ file, lineNumber, content: "" });
+  }, []);
+
+  const editComment = useCallback((id: string, content: string) => {
+    const comment = comments.find((c) => c.id === id);
+    if (comment) {
+      setDraft({ file: comment.file, lineNumber: comment.lineNumber, content, editingId: id });
+    }
+  }, [comments]);
+
+  const cancelDraft = useCallback(() => {
+    setDraft(null);
+  }, []);
+
+  const setDraftContent = useCallback((content: string) => {
+    setDraft((prev) => (prev ? { ...prev, content } : null));
+  }, []);
+
+  const submitDraft = useCallback(() => {
+    if (draft && draft.content.trim()) {
+      if (draft.editingId) {
+        updateComment(draft.editingId, draft.content.trim());
+      } else {
+        addComment(draft.file, draft.lineNumber, draft.content.trim());
+      }
+      setDraft(null);
+    }
+  }, [draft, addComment, updateComment]);
+
+  const commentsForFile = useCallback(
+    (file: string) => comments.filter((c) => c.file === file),
+    [comments],
+  );
+
+  const commentsForLine = useCallback(
+    (file: string, lineNumber: number) => comments.filter((c) => c.file === file && c.lineNumber === lineNumber),
+    [comments],
+  );
+
+  return {
+    comments,
+    draft,
+    addComment,
+    updateComment,
+    deleteComment,
+    startDraft,
+    editComment,
+    cancelDraft,
+    setDraftContent,
+    submitDraft,
+    commentsForFile,
+    commentsForLine,
+  };
+}

dashboard/src/lib/loop-control.ts

@@ -0,0 +1,48 @@
+export type IntervalUnit = "s" | "m" | "h";
+
+export interface LoopRunStatus {
+  prompt: string;
+  intervalMs: number;
+  iter: number;
+  /** Wall-clock ms until the next fire — server reports a remaining duration, not an absolute. */
+  nextFireMs: number;
+}
+
+/** Quick-pick intervals in ms — covers the 95% of cases users actually run. */
+export const INTERVAL_PRESETS_MS: ReadonlyArray<{ ms: number; label: string }> = [
+  { ms: 30_000, label: "30s" },
+  { ms: 60_000, label: "1m" },
+  { ms: 5 * 60_000, label: "5m" },
+  { ms: 15 * 60_000, label: "15m" },
+  { ms: 60 * 60_000, label: "1h" },
+  { ms: 6 * 60 * 60_000, label: "6h" },
+];
+
+const UNIT_TO_MS: Record<IntervalUnit, number> = {
+  s: 1_000,
+  m: 60_000,
+  h: 60 * 60_000,
+};
+
+const MIN_INTERVAL_MS = 5_000;
+const MAX_INTERVAL_MS = 6 * 60 * 60_000;
+
+/** Convert a "30" + "s" pair to ms, returning null if out of [5s, 6h]. */
+export function parseCustomInterval(value: string, unit: IntervalUnit): number | null {
+  const n = Number.parseFloat(value);
+  if (!Number.isFinite(n) || n <= 0) return null;
+  const ms = Math.round(n * UNIT_TO_MS[unit]);
+  if (ms < MIN_INTERVAL_MS || ms > MAX_INTERVAL_MS) return null;
+  return ms;
+}
+
+/** Human-friendly "5m 12s" / "12s" / "2h 45m" — shows two largest non-zero units. */
+export function formatRemaining(ms: number): string {
+  const safe = Math.max(0, Math.floor(ms / 1000));
+  const h = Math.floor(safe / 3600);
+  const m = Math.floor((safe % 3600) / 60);
+  const s = safe % 60;
+  if (h > 0) return m > 0 ? `${h}h ${m}m` : `${h}h`;
+  if (m > 0) return s > 0 ? `${m}m ${s}s` : `${m}m`;
+  return `${s}s`;
+}

dashboard/src/lib/mcp-spec.ts

@@ -0,0 +1,46 @@
+type SpecRecord = Record<string, unknown>;
+
+function isRecord(value: unknown): value is SpecRecord {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function stringField(obj: SpecRecord, key: string): string | null {
+  const value = obj[key];
+  return typeof value === "string" && value.trim() ? value.trim() : null;
+}
+
+function stringArgs(obj: SpecRecord): string[] {
+  const args = obj.args;
+  if (!Array.isArray(args)) return [];
+  return args.filter((arg): arg is string => typeof arg === "string" && arg.length > 0);
+}
+
+export function normalizeMcpSpec(spec: unknown): string | null {
+  if (typeof spec === "string") return spec;
+  if (!isRecord(spec)) return null;
+
+  const raw = stringField(spec, "raw") ?? stringField(spec, "spec");
+  if (raw) return raw;
+
+  const name = stringField(spec, "name") ?? stringField(spec, "label");
+  const command = stringField(spec, "command");
+  const url = stringField(spec, "url");
+  const transport = stringField(spec, "transport");
+  if (name && url) return `${name}=${transport === "streamable-http" ? "streamable+" : ""}${url}`;
+  if (name && command) return `${name}=${[command, ...stringArgs(spec)].join(" ")}`;
+  if (command) return [command, ...stringArgs(spec)].join(" ");
+
+  return null;
+}
+
+export function mcpSpecLabel(spec: unknown): string {
+  const text = normalizeMcpSpec(spec) ?? "";
+  const eq = text.indexOf("=");
+  return eq > 0 ? text.slice(0, eq) : text;
+}
+
+export function mcpSpecCommand(spec: unknown): string {
+  const text = normalizeMcpSpec(spec) ?? "";
+  const eq = text.indexOf("=");
+  return eq > 0 ? text.slice(eq + 1) : text;
+}

dashboard/src/lib/review-diffs.ts

@@ -0,0 +1,32 @@
+import { useState, useCallback, useEffect } from "preact/hooks";
+import { api } from "./api.js";
+
+export interface FileDiff {
+  file: string;
+  additions: number;
+  deletions: number;
+  patch?: string;
+  status: "added" | "deleted" | "modified";
+}
+
+export function useReviewDiffs() {
+  const [diffs, setDiffs] = useState<FileDiff[]>([]);
+  const [loading, setLoading] = useState(false);
+
+  const loadDiffs = useCallback(async (ep: string = "/review-diffs") => {
+    setLoading(true);
+    try {
+      const data = await api<FileDiff[]>(ep);
+      setDiffs(Array.isArray(data) ? data : []);
+    } catch {
+      setDiffs([]);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  const modifiedFiles = useCallback(() => new Set(diffs.map((d) => d.file)), [diffs]);
+  const modifiedCount = useCallback(() => diffs.length, [diffs]);
+
+  return { diffs, loading, modifiedFiles, modifiedCount, reload: loadDiffs };
+}

dashboard/src/lib/version.ts

@@ -0,0 +1,15 @@
+/** Pre-release with same core sorts BELOW the bare version — matches npm `latest` dist-tag semantics. */
+export function compareVersions(a: string, b: string): number {
+  const [aCore = "0", aPre = ""] = a.split("-", 2);
+  const [bCore = "0", bPre = ""] = b.split("-", 2);
+  const aParts = aCore.split(".").map((p) => Number.parseInt(p, 10) || 0);
+  const bParts = bCore.split(".").map((p) => Number.parseInt(p, 10) || 0);
+  for (let i = 0; i < 3; i++) {
+    const diff = (aParts[i] ?? 0) - (bParts[i] ?? 0);
+    if (diff !== 0) return diff;
+  }
+  if (!aPre && !bPre) return 0;
+  if (!aPre) return 1;
+  if (!bPre) return -1;
+  return aPre < bPre ? -1 : aPre > bPre ? 1 : 0;
+}

dashboard/src/panels/chat.ts

@@ -1,3 +1,4 @@
+import { memo } from "preact/compat";
 import { useCallback, useEffect, useRef, useState } from "preact/hooks";
 import {
   ChatMessage,
@@ -6,15 +7,17 @@ import {
   ChoiceModal,
   EditReviewModal,
   type OnResolve,
+  PickerModal,
   PlanModal,
   RevisionModal,
   ShellModal,
+  ViewerModal,
   WorkspaceModal,
   parseToolArgs,
 } from "../components/chat-internals.js";
 import { MODE, TOKEN, api } from "../lib/api.js";
 import { appBus, showToast } from "../lib/bus.js";
-import { fmtUsd } from "../lib/format.js";
+import { fmtCost, fmtUsd } from "../lib/format.js";
 import { html } from "../lib/html.js";
 import { t, useLang } from "../i18n/index.js";
 
@@ -106,7 +109,6 @@ export function ChatPanel() {
   const [streaming, setStreaming] = useState<StreamingState | null>(null);
   const [activeTool, setActiveTool] = useState<ActiveToolState | null>(null);
   const [busy, setBusy] = useState(false);
-  const [input, setInput] = useState("");
   const [error, setError] = useState<string | null>(null);
   const [bootError, setBootError] = useState<string | null>(null);
   const [statusLine, setStatusLine] = useState<string | null>(null);
@@ -120,9 +122,6 @@ export function ChatPanel() {
   const [activePlan, setActivePlan] = useState<RailPlan | null>(null);
   const [semanticIndex, setSemanticIndex] = useState<boolean | null>(null);
   const [slashCommands, setSlashCommands] = useState<SlashCommand[]>([]);
-  const [popoverKind, setPopoverKind] = useState<PopoverKind>(null);
-  const [popoverItems, setPopoverItems] = useState<PopoverItem[]>([]);
-  const [popoverSel, setPopoverSel] = useState(0);
   const [semanticBannerDismissed, setSemanticBannerDismissed] = useState<boolean>(() => {
     try {
       return localStorage.getItem("rx.semanticBannerDismissed") === "1";
@@ -183,8 +182,58 @@ export function ChatPanel() {
     };
   }, []);
 
+  // rAF-coalesce assistant_delta events. A streaming turn fires ~20
+  // deltas/sec — committing each to React state forces a parent
+  // re-render per delta, which used to thrash the chat feed. Now the
+  // accumulated text lives in a ref and we flush at most once per
+  // frame, capping the streaming-bubble re-render rate at the display
+  // refresh rate. assistant_final cancels the pending flush.
+  const streamBufRef = useRef<StreamingState | null>(null);
+  const streamRafRef = useRef<number | null>(null);
+  const flushStreaming = useCallback(() => {
+    streamRafRef.current = null;
+    if (streamBufRef.current) setStreaming(streamBufRef.current);
+  }, []);
+  const cancelStreamingRaf = useCallback(() => {
+    if (streamRafRef.current !== null) {
+      cancelAnimationFrame(streamRafRef.current);
+      streamRafRef.current = null;
+    }
+    streamBufRef.current = null;
+  }, []);
+
+  // SSE reconnect drops missed deltas / finals / modals — server only
+  // snapshots `busy-change` on (re)connect. Pull /messages + /modal to
+  // recover canonical state, otherwise UI wedges on the last seen state (#521).
+  const refetchCanonicalState = useCallback(async () => {
+    try {
+      const data = await api<MessagesResponse>("/messages");
+      setMessages(data.messages ?? []);
+      setBusy(Boolean(data.busy));
+      cancelStreamingRaf();
+      setStreaming(null);
+      setActiveTool(null);
+    } catch {
+      /* keep current state — next event or next reconnect will retry */
+    }
+    try {
+      const m = await api<ModalEnvelope>("/modal");
+      setModal(m.modal ?? null);
+    } catch {
+      /* modal endpoint optional in standalone */
+    }
+  }, [cancelStreamingRaf]);
+
   useEffect(() => {
     const es = new EventSource(`/api/events?token=${TOKEN}`);
+    let firstOpen = true;
+    es.onopen = () => {
+      if (firstOpen) {
+        firstOpen = false;
+        return;
+      }
+      void refetchCanonicalState();
+    };
     es.onmessage = (ev) => {
       let dash;
       try {
@@ -202,14 +251,20 @@ export function ChatPanel() {
         return;
       }
       if (dash.kind === "assistant_delta") {
-        setStreaming((cur) => {
-          const text = (cur?.text ?? "") + (dash.contentDelta ?? "");
-          const reasoning = (cur?.reasoning ?? "") + (dash.reasoningDelta ?? "");
-          return { id: dash.id, text, reasoning };
-        });
+        const cur = streamBufRef.current;
+        const baseId = cur?.id === dash.id ? cur : null;
+        streamBufRef.current = {
+          id: dash.id,
+          text: (baseId?.text ?? "") + (dash.contentDelta ?? ""),
+          reasoning: (baseId?.reasoning ?? "") + (dash.reasoningDelta ?? ""),
+        };
+        if (streamRafRef.current === null) {
+          streamRafRef.current = requestAnimationFrame(flushStreaming);
+        }
         return;
       }
       if (dash.kind === "assistant_final") {
+        cancelStreamingRaf();
         setStreaming(null);
         setMessages((prev) => [
           ...prev,
@@ -264,31 +319,43 @@ export function ChatPanel() {
     };
     es.onerror = () => {
       // Auto-reconnect by default; surface a brief banner on persistent
-      // failure but don't tear down — EventSource retries in the background.
+      // failure but don't tear down — EventSource retries in the
+      // background. The next `onopen` will resync canonical state.
       setError(t("chat.eventStreamError"));
       setTimeout(() => setError(null), 3000);
     };
-    return () => es.close();
-  }, []);
+    return () => {
+      es.close();
+      cancelStreamingRaf();
+    };
+  }, [refetchCanonicalState, cancelStreamingRaf]);
 
-  const send = useCallback(async () => {
-    const text = input.trim();
-    if (!text || busy) return;
-    setError(null);
-    try {
-      const res = await api<{ accepted: boolean; reason?: string }>("/submit", {
-        method: "POST",
-        body: { prompt: text },
-      });
-      if (!res.accepted) {
-        setError(res.reason ?? "rejected");
-        return;
+  // Stable callbacks so the memo'd <ChatInput/> doesn't re-render on every
+  // unrelated parent state change. Live values (busy, messages.length) flow
+  // through refs instead of dep arrays.
+  const busyRef = useRef(busy);
+  busyRef.current = busy;
+  const messagesRef = useRef(messages);
+  messagesRef.current = messages;
+
+  const onSubmit = useCallback(
+    async (text: string): Promise<{ accepted: boolean; reason?: string }> => {
+      setError(null);
+      try {
+        const res = await api<{ accepted: boolean; reason?: string }>("/submit", {
+          method: "POST",
+          body: { prompt: text },
+        });
+        if (!res.accepted) setError(res.reason ?? "rejected");
+        return res;
+      } catch (err) {
+        const msg = (err as Error).message;
+        setError(msg);
+        return { accepted: false, reason: msg };
       }
-      setInput("");
-    } catch (err) {
-      setError((err as Error).message);
-    }
-  }, [input, busy]);
+    },
+    [],
+  );
 
   const abort = useCallback(async () => {
     try {
@@ -299,9 +366,9 @@ export function ChatPanel() {
   }, []);
 
   const newConversation = useCallback(async () => {
-    if (busy) {
+    if (busyRef.current) {
       if (!confirm(t("chat.newConfirmBusy"))) return;
-    } else if (messages.length > 0 && !confirm(t("chat.newConfirm"))) {
+    } else if (messagesRef.current.length > 0 && !confirm(t("chat.newConfirm"))) {
       return;
     }
     try {
@@ -321,7 +388,7 @@ export function ChatPanel() {
     } catch (err) {
       setError(t("chat.newFailed", { error: (err as Error).message }));
     }
-  }, [busy, messages.length]);
+  }, []);
 
   const clearScrollback = useCallback(async () => {
     try {
@@ -343,107 +410,6 @@ export function ChatPanel() {
     }
   }, []);
 
-  const updatePopover = useCallback(
-    async (text: string) => {
-      const slashMatch = /^\/([A-Za-z0-9_-]*)$/.exec(text);
-      if (slashMatch) {
-        const prefix = slashMatch[1]!.toLowerCase();
-        const items: PopoverItem[] = slashCommands
-          .filter((c) => c.cmd.startsWith(prefix))
-          .slice(0, 12)
-          .map((c) => ({
-            label: `/${c.cmd}`,
-            meta: c.summary,
-            insert: `/${c.cmd}${c.argsHint ? " " : ""}`,
-          }));
-        setPopoverKind("slash");
-        setPopoverItems(items);
-        setPopoverSel(0);
-        return;
-      }
-      const mentionMatch = /(?:^|\s)@([^\s@]*)$/.exec(text);
-      if (mentionMatch && MODE === "attached") {
-        const prefix = mentionMatch[1] ?? "";
-        try {
-          const r = await api<{ files: string[] }>("/files", {
-            method: "POST",
-            body: { prefix },
-          });
-          const items: PopoverItem[] = r.files.slice(0, 12).map((f) => ({
-            label: f,
-            insert: `@${f} `,
-          }));
-          setPopoverKind("mention");
-          setPopoverItems(items);
-          setPopoverSel(0);
-        } catch {
-          setPopoverKind(null);
-        }
-        return;
-      }
-      setPopoverKind(null);
-    },
-    [slashCommands],
-  );
-
-  const applyPopover = useCallback(() => {
-    const item = popoverItems[popoverSel];
-    if (!item) return false;
-    if (popoverKind === "slash") {
-      setInput(item.insert);
-    } else if (popoverKind === "mention") {
-      const m = /(?:^|\s)@([^\s@]*)$/.exec(input);
-      if (!m) return false;
-      const start = input.length - m[0].length + (m[0].startsWith(" ") ? 1 : 0);
-      setInput(`${input.slice(0, start)}${item.insert}`);
-    }
-    setPopoverKind(null);
-    return true;
-  }, [popoverItems, popoverSel, popoverKind, input]);
-
-  const onInput = useCallback(
-    (e: Event) => {
-      const v = (e.target as HTMLTextAreaElement).value;
-      setInput(v);
-      updatePopover(v);
-    },
-    [updatePopover],
-  );
-
-  const onKeyDown = useCallback(
-    (e: KeyboardEvent) => {
-      if (popoverKind && popoverItems.length > 0) {
-        if (e.key === "ArrowDown") {
-          e.preventDefault();
-          setPopoverSel((i) => (i + 1) % popoverItems.length);
-          return;
-        }
-        if (e.key === "ArrowUp") {
-          e.preventDefault();
-          setPopoverSel((i) => (i - 1 + popoverItems.length) % popoverItems.length);
-          return;
-        }
-        if (e.key === "Tab" || (e.key === "Enter" && !e.shiftKey)) {
-          e.preventDefault();
-          if (applyPopover() && e.key === "Enter" && popoverKind === "slash") {
-            send();
-          }
-          return;
-        }
-        if (e.key === "Escape") {
-          e.preventDefault();
-          setPopoverKind(null);
-          return;
-        }
-      }
-      if (e.key === "Enter" && !e.shiftKey) {
-        e.preventDefault();
-        send();
-      }
-    },
-    [send, popoverKind, popoverItems, applyPopover],
-  );
-
   if (bootError) {
     return html`<div class="notice err">${t("common.loadingFailed", { name: "chat", error: bootError })}</div>`;
   }
@@ -473,18 +439,6 @@ export function ChatPanel() {
     }, 0);
   }, [messages, streaming]);
 
-  const allMessages = streaming
-    ? [
-        ...messages,
-        {
-          id: streaming.id,
-          role: "assistant",
-          text: streaming.text,
-          reasoning: streaming.reasoning,
-        },
-      ]
-    : messages;
-
   const resolveModal = useCallback<OnResolve>(async (kind, choice, text) => {
     try {
       await api("/modal/resolve", {
@@ -559,7 +513,7 @@ export function ChatPanel() {
     <div class="chat-shell">
       <div style="display:flex;align-items:center;gap:12px;margin-bottom:10px">
         <div class="chips" style="padding:0">
-          <span class="chip-f active">${MODE === "attached" ? t("chat.modeMirror") : t("chat.modeView")}</span>
+          <span class="chip-f static active">${MODE === "attached" ? t("chat.modeMirror") : t("chat.modeView")}</span>
         </div>
         <div class="header-pickers" style="margin-left:auto">
           ${
@@ -684,77 +638,25 @@ export function ChatPanel() {
                       ? html`<${CheckpointModal} modal=${modal} onResolve=${resolveModal} />`
                       : modal.kind === "revision"
                         ? html`<${RevisionModal} modal=${modal} onResolve=${resolveModal} />`
-                        : null
+                        : modal.kind === "picker"
+                          ? html`<${PickerModal} modal=${modal} onResolve=${resolveModal} />`
+                          : modal.kind === "viewer"
+                            ? html`<${ViewerModal} modal=${modal} onResolve=${resolveModal} />`
+                            : null
           : null
       }
 
       <div class="chat-body">
         <div class="chat-main">
-          <div class="chat-feed" ref=${feedRef}>
-            ${
-              allMessages.length === 0
-                ? html`<div class="chat-empty">
-                    ${t("chat.noConversation")}
-                  </div>`
-                : allMessages.map(
-                    (m) => html`
-                      <${ChatMessage}
-                        key=${m.id}
-                        msg=${m}
-                        streaming=${streaming && streaming.id === m.id}
-                      />
-                    `,
-                  )
-            }
-          </div>
+          <${ChatFeed} messages=${messages} streaming=${streaming} innerRef=${feedRef} />
 
-          <div class="chat-input-area" style="position:relative">
-            ${
-              popoverKind && popoverItems.length > 0
-                ? html`
-                  <div class="popover" style="position:absolute;bottom:calc(100% + 6px);left:0;width:380px;max-height:280px;overflow-y:auto;z-index:10">
-                    <div class="popover-h">${popoverKind === "slash" ? t("chat.slashCommands") : t("chat.projectFiles")}</div>
-                    ${popoverItems.map(
-                      (it, i) => html`
-                        <div
-                          class=${`popover-row ${i === popoverSel ? "sel" : ""}`}
-                          onMouseDown=${(e: Event) => {
-                            e.preventDefault();
-                            setPopoverSel(i);
-                            applyPopover();
-                          }}
-                        >
-                          <span class="g">${popoverKind === "slash" ? "/" : "@"}</span>
-                          <span class="name">${it.label}</span>
-                          ${it.meta ? html`<span class="meta">${it.meta}</span>` : null}
-                        </div>
-                      `,
-                    )}
-                  </div>
-                `
-                : null
-            }
-            <textarea
-              placeholder=${busy ? t("chat.placeholderBusy") : t("chat.placeholder")}
-              value=${input}
-              onInput=${onInput}
-              onKeyDown=${onKeyDown}
-              onBlur=${() => setTimeout(() => setPopoverKind(null), 150)}
-              disabled=${busy}
-              rows="2"
-            ></textarea>
-            <div style="display: flex; flex-direction: column; gap: 6px; align-self: stretch; justify-content: flex-end;">
-              <button
-                class="primary"
-                onClick=${send}
-                disabled=${busy || !input.trim()}
-              >${t("chat.send")}</button>
-              <div style="display: flex; gap: 6px;">
-                <button onClick=${newConversation} title=${t("chat.newTitle")}>${t("chat.new")}</button>
-                <button onClick=${clearScrollback} title=${t("chat.clearTitle")}>${t("chat.clear")}</button>
-              </div>
-            </div>
-          </div>
+          <${ChatInput}
+            busy=${busy}
+            slashCommands=${slashCommands}
+            onSubmit=${onSubmit}
+            onNew=${newConversation}
+            onClear=${clearScrollback}
+          />
 
           ${
             busy
@@ -777,20 +679,261 @@ export function ChatPanel() {
   `;
 }
 
+interface ChatInputProps {
+  busy: boolean;
+  slashCommands: SlashCommand[];
+  onSubmit: (text: string) => Promise<{ accepted: boolean; reason?: string }>;
+  onNew: () => void;
+  onClear: () => void;
+}
+
+/** Owns its own input + popover state so keystrokes never re-render the parent (status bar, rail, mode pickers, chat feed). Memo'd against stable parent callbacks. Fixes #1031 — Chinese / Japanese IME typing felt laggy because every input event triggered a full ChatPanel re-render plus a popover-update walk over long transcripts. */
+const ChatInput = memo(function ChatInput({
+  busy,
+  slashCommands,
+  onSubmit,
+  onNew,
+  onClear,
+}: ChatInputProps) {
+  useLang();
+  const [input, setInput] = useState("");
+  const [popoverKind, setPopoverKind] = useState<PopoverKind>(null);
+  const [popoverItems, setPopoverItems] = useState<PopoverItem[]>([]);
+  const [popoverSel, setPopoverSel] = useState(0);
+  /** Suppress popover work and Enter-submission while an IME is mid-composition — input events fire for every intermediate code point on Chinese / Japanese / Korean typing and the regex / async fetch on each one is what made the textarea lag. */
+  const composing = useRef(false);
+
+  const updatePopover = useCallback(
+    async (text: string) => {
+      const slashMatch = /^\/([A-Za-z0-9_-]*)$/.exec(text);
+      if (slashMatch) {
+        const prefix = slashMatch[1]!.toLowerCase();
+        const items: PopoverItem[] = slashCommands
+          .filter((c) => c.cmd.startsWith(prefix))
+          .slice(0, 12)
+          .map((c) => ({
+            label: `/${c.cmd}`,
+            meta: c.summary,
+            insert: `/${c.cmd}${c.argsHint ? " " : ""}`,
+          }));
+        setPopoverKind("slash");
+        setPopoverItems(items);
+        setPopoverSel(0);
+        return;
+      }
+      const mentionMatch = /(?:^|\s)@([^\s@]*)$/.exec(text);
+      if (mentionMatch && MODE === "attached") {
+        const prefix = mentionMatch[1] ?? "";
+        try {
+          const r = await api<{ files: string[] }>("/files", {
+            method: "POST",
+            body: { prefix },
+          });
+          const items: PopoverItem[] = r.files.slice(0, 12).map((f) => ({
+            label: f,
+            insert: `@${f} `,
+          }));
+          setPopoverKind("mention");
+          setPopoverItems(items);
+          setPopoverSel(0);
+        } catch {
+          setPopoverKind(null);
+        }
+        return;
+      }
+      setPopoverKind(null);
+    },
+    [slashCommands],
+  );
+
+  const applyPopover = useCallback(() => {
+    const item = popoverItems[popoverSel];
+    if (!item) return false;
+    if (popoverKind === "slash") {
+      setInput(item.insert);
+    } else if (popoverKind === "mention") {
+      const m = /(?:^|\s)@([^\s@]*)$/.exec(input);
+      if (!m) return false;
+      const start = input.length - m[0].length + (m[0].startsWith(" ") ? 1 : 0);
+      setInput(`${input.slice(0, start)}${item.insert}`);
+    }
+    setPopoverKind(null);
+    return true;
+  }, [popoverItems, popoverSel, popoverKind, input]);
+
+  const send = useCallback(async () => {
+    const text = input.trim();
+    if (!text || busy) return;
+    const res = await onSubmit(text);
+    if (res.accepted) setInput("");
+  }, [input, busy, onSubmit]);
+
+  const onInput = useCallback(
+    (e: Event) => {
+      const v = (e.target as HTMLTextAreaElement).value;
+      setInput(v);
+      if (composing.current) return;
+      void updatePopover(v);
+    },
+    [updatePopover],
+  );
+
+  const onKeyDown = useCallback(
+    (e: KeyboardEvent) => {
+      // Don't intercept Enter while an IME is mid-composition — both Chrome
+      // and Firefox fire keyDown for the IME's "commit" Enter and short-
+      // circuiting it would swallow the chosen candidate.
+      if (composing.current) return;
+      if (popoverKind && popoverItems.length > 0) {
+        if (e.key === "ArrowDown") {
+          e.preventDefault();
+          setPopoverSel((i) => (i + 1) % popoverItems.length);
+          return;
+        }
+        if (e.key === "ArrowUp") {
+          e.preventDefault();
+          setPopoverSel((i) => (i - 1 + popoverItems.length) % popoverItems.length);
+          return;
+        }
+        if (e.key === "Tab" || (e.key === "Enter" && !e.shiftKey)) {
+          e.preventDefault();
+          if (applyPopover() && e.key === "Enter" && popoverKind === "slash") {
+            send();
+          }
+          return;
+        }
+        if (e.key === "Escape") {
+          e.preventDefault();
+          setPopoverKind(null);
+          return;
+        }
+      }
+      if (e.key === "Enter" && !e.shiftKey) {
+        e.preventDefault();
+        send();
+      }
+    },
+    [send, popoverKind, popoverItems, applyPopover],
+  );
+
+  const onCompositionStart = useCallback(() => {
+    composing.current = true;
+  }, []);
+  const onCompositionEnd = useCallback(
+    (e: CompositionEvent) => {
+      composing.current = false;
+      void updatePopover((e.target as HTMLTextAreaElement).value);
+    },
+    [updatePopover],
+  );
+
+  return html`
+    <div class="chat-input-area" style="position:relative">
+      ${
+        popoverKind && popoverItems.length > 0
+          ? html`
+            <div class="popover" style="position:absolute;bottom:calc(100% + 6px);left:0;width:380px;max-height:280px;overflow-y:auto;z-index:10">
+              <div class="popover-h">${popoverKind === "slash" ? t("chat.slashCommands") : t("chat.projectFiles")}</div>
+              ${popoverItems.map(
+                (it, i) => html`
+                  <div
+                    class=${`popover-row ${i === popoverSel ? "sel" : ""}`}
+                    onMouseDown=${(e: Event) => {
+                      e.preventDefault();
+                      setPopoverSel(i);
+                      applyPopover();
+                    }}
+                  >
+                    <span class="g">${popoverKind === "slash" ? "/" : "@"}</span>
+                    <span class="name">${it.label}</span>
+                    ${it.meta ? html`<span class="meta">${it.meta}</span>` : null}
+                  </div>
+                `,
+              )}
+            </div>
+          `
+          : null
+      }
+      <textarea
+        placeholder=${busy ? t("chat.placeholderBusy") : t("chat.placeholder")}
+        value=${input}
+        onInput=${onInput}
+        onKeyDown=${onKeyDown}
+        onCompositionStart=${onCompositionStart}
+        onCompositionEnd=${onCompositionEnd}
+        onBlur=${() => setTimeout(() => setPopoverKind(null), 150)}
+        disabled=${busy}
+        rows="2"
+      ></textarea>
+      <div style="display: flex; flex-direction: column; gap: 6px; align-self: stretch; justify-content: flex-end;">
+        <button
+          class="primary"
+          onClick=${send}
+          disabled=${busy || !input.trim()}
+        >${t("chat.send")}</button>
+        <div style="display: flex; gap: 6px;">
+          <button onClick=${onNew} title=${t("chat.newTitle")}>${t("chat.new")}</button>
+          <button onClick=${onClear} title=${t("chat.clearTitle")}>${t("chat.clear")}</button>
+        </div>
+      </div>
+    </div>
+  `;
+});
+
+interface ChatFeedProps {
+  messages: ChatMsg[];
+  streaming: StreamingState | null;
+  innerRef: { current: HTMLDivElement | null };
+}
+
+/** Memoised so keystrokes in ChatPanel don't re-walk the message list. */
+const ChatFeed = memo(function ChatFeed({ messages, streaming, innerRef }: ChatFeedProps) {
+  useLang();
+  const allMessages = streaming
+    ? [
+        ...messages,
+        {
+          id: streaming.id,
+          role: "assistant" as const,
+          text: streaming.text,
+          reasoning: streaming.reasoning,
+        },
+      ]
+    : messages;
+  return html`
+    <div class="chat-feed" ref=${innerRef}>
+      ${
+        allMessages.length === 0
+          ? html`<div class="chat-empty">${t("chat.noConversation")}</div>`
+          : allMessages.map(
+              (m) => html`
+                <${ChatMessage}
+                  key=${m.id}
+                  msg=${m}
+                  streaming=${Boolean(streaming && streaming.id === m.id)}
+                />
+              `,
+            )
+      }
+    </div>
+  `;
+});
+
 interface SideRailProps {
   stats: ChatStats | null;
   budgetUsd: number | null;
   activePlan: RailPlan | null;
 }
 
-function SideRail({ stats, budgetUsd, activePlan }: SideRailProps) {
+const SideRail = memo(function SideRail({ stats, budgetUsd, activePlan }: SideRailProps) {
   useLang();
   if (!stats && !activePlan) return html`<aside class="chat-rail"></aside>`;
-  const cachePct = stats ? Math.round(stats.cacheHitRatio * 100) : 0;
+  const cachePct = stats ? stats.cacheHitRatio * 100 : 0;
   const cacheTone = cachePct >= 80 ? "ok" : cachePct >= 50 ? "" : "warn";
   const showBudget = stats != null && typeof budgetUsd === "number" && budgetUsd > 0;
   const budgetPct = showBudget ? Math.min(120, (stats.totalCostUsd / budgetUsd) * 100) : 0;
   const budgetTone = budgetPct >= 100 ? "err" : budgetPct >= 80 ? "warn" : "";
+  const walletCurrency = stats?.balance?.[0]?.currency;
   return html`
     <aside class="chat-rail">
       ${activePlan ? html`<${ActivePlanCard} plan=${activePlan} />` : null}
@@ -801,11 +944,11 @@ function SideRail({ stats, budgetUsd, activePlan }: SideRailProps) {
               <div class="rh">${t("chat.railSession")}</div>
               <div class="rail-kv"><span class="k">${t("chat.railTurns")}</span><span class="v">${stats.turns.toLocaleString()}</span></div>
               <div class="rail-kv"><span class="k">${t("chat.railPromptTok")}</span><span class="v">${stats.lastPromptTokens.toLocaleString()}</span></div>
-              <div class="rail-kv"><span class="k">${t("chat.railCost")}</span><span class="v">${fmtUsd(stats.totalCostUsd)}</span></div>
+              <div class="rail-kv"><span class="k">${t("chat.railCost")}</span><span class="v">${fmtCost(stats.totalCostUsd, walletCurrency)}</span></div>
               <div class="progress-row" style="margin-top:8px">
                 <span class="lbl">${t("chat.railCacheHit")}</span>
                 <div class=${`progress ${cacheTone}`}><div class="progress-fill" style=${`width:${cachePct}%`}></div></div>
-                <span class="v">${cachePct}%</span>
+                <span class="v">${cachePct.toFixed(1)}%</span>
               </div>
             </div>
           `
@@ -819,7 +962,7 @@ function SideRail({ stats, budgetUsd, activePlan }: SideRailProps) {
               <div class="progress-row">
                 <span class="lbl">${t("chat.railSpend")}</span>
                 <div class=${`progress ${budgetTone}`}><div class="progress-fill" style=${`width:${Math.min(100, budgetPct)}%`}></div></div>
-                <span class="v" style=${budgetTone === "err" ? "color:var(--c-err)" : budgetTone === "warn" ? "color:var(--c-warn)" : ""}>${fmtUsd(stats.totalCostUsd)} / ${fmtUsd(budgetUsd)}</span>
+                <span class="v" style=${budgetTone === "err" ? "color:var(--c-err)" : budgetTone === "warn" ? "color:var(--c-warn)" : ""}>${fmtCost(stats.totalCostUsd, walletCurrency)} / ${fmtCost(budgetUsd, walletCurrency)}</span>
               </div>
             </div>
           `
@@ -827,7 +970,7 @@ function SideRail({ stats, budgetUsd, activePlan }: SideRailProps) {
       }
     </aside>
   `;
-}
+});
 
 function ActivePlanCard({ plan }: { plan: RailPlan }) {
   useLang();
@@ -956,7 +1099,7 @@ interface ChatStatusBarProps {
   model: string | null;
 }
 
-function ChatStatusBar({ stats, model }: ChatStatusBarProps) {
+const ChatStatusBar = memo(function ChatStatusBar({ stats, model }: ChatStatusBarProps) {
   useLang();
   if (!stats) {
     return html`
@@ -989,11 +1132,11 @@ function ChatStatusBar({ stats, model }: ChatStatusBarProps) {
       </span>
       <span class="status-item">
         <span class="status-label">${t("chat.statusTurn")}</span>
-        <code>${fmtUsd(stats.lastTurnCostUsd)}</code>
+        <code>${fmtCost(stats.lastTurnCostUsd, balance?.currency)}</code>
       </span>
       <span class="status-item">
         <span class="status-label">${t("chat.statusSession")}</span>
-        <code>${fmtUsd(stats.totalCostUsd)}</code>
+        <code>${fmtCost(stats.totalCostUsd, balance?.currency)}</code>
         <span class="muted" style="font-size: 10px;">
           ${t("chat.statusTurns", { count: stats.turns, s: stats.turns === 1 ? "" : "s" })}
         </span>
@@ -1010,4 +1153,4 @@ function ChatStatusBar({ stats, model }: ChatStatusBarProps) {
       }
     </div>
   `;
-}
+});

dashboard/src/panels/hooks.ts

@@ -68,6 +68,7 @@ export function HooksPanel() {
   const [drafts, setDrafts] = useState<Record<string, string>>({});
   const [busy, setBusy] = useState(false);
   const [info, setInfo] = useState<string | null>(null);
+  const [eventFilter, setEventFilter] = useState<string>("all");
 
   const load = useCallback(async () => {
     try {
@@ -129,19 +130,31 @@ export function HooksPanel() {
     data.events.length > 0
       ? data.events
       : Array.from(new Set(matrixRows.flatMap((r) => Object.keys(r.cells))));
+  const visibleRows =
+    eventFilter === "all"
+      ? matrixRows
+      : matrixRows.filter((r) => r.cells[eventFilter]?.on);
   const gridCols = `220px repeat(${Math.max(events.length, 1)}, minmax(0, 1fr))`;
 
   return html`
     <div style="display:flex;flex-direction:column;gap:6px">
       <div class="chips">
-        <span class="chip-f active">${t("hooks.resolved")} <span class="ct">${data.resolved.length}</span></span>
-        ${data.events.map((ev) => html`<span class="chip-f">${ev}</span>`)}
+        <span
+          class=${`chip-f ${eventFilter === "all" ? "active" : ""}`}
+          onClick=${() => setEventFilter("all")}
+        >${t("hooks.resolved")} <span class="ct">${data.resolved.length}</span></span>
+        ${data.events.map(
+          (ev) => html`<span
+            class=${`chip-f ${eventFilter === ev ? "active" : ""}`}
+            onClick=${() => setEventFilter(ev)}
+          >${ev}</span>`,
+        )}
       </div>
       ${info ? html`<div><span class="pill ok">${info}</span></div>` : null}
       ${error ? html`<div class="card accent-err">${error}</div>` : null}
 
       ${sectionH3(t("hooks.eventMatrix"), t("hooks.matrixSub", { scripts: matrixRows.length, s: matrixRows.length === 1 ? "" : "s", events: events.length }))}${
-        matrixRows.length === 0
+        visibleRows.length === 0
           ? html`<div class="card" style="color:var(--fg-3)">
               ${t("hooks.noHooks")}
             </div>`
@@ -152,7 +165,7 @@ export function HooksPanel() {
                   <div>${t("hooks.colScript")}</div>
                   ${events.map((ev) => html`<div>${ev}</div>`)}
                 </div>
-                ${matrixRows.map(
+                ${visibleRows.map(
                   (r) => html`
                     <div class="row" style=${`grid-template-columns:${gridCols}`}>
                       <div class="cell" title=${r.command}>

dashboard/src/panels/mcp.ts

@@ -3,6 +3,11 @@ import { t, useLang } from "../i18n/index.js";
 import { api } from "../lib/api.js";
 import { fmtNum } from "../lib/format.js";
 import { html } from "../lib/html.js";
+import {
+  normalizeMcpSpec,
+  mcpSpecCommand as specCommand,
+  mcpSpecLabel as specLabel,
+} from "../lib/mcp-spec.js";
 
 interface McpServer {
   label: string;
@@ -63,6 +68,10 @@ function specForEntry(e: RegistryEntryDto): string | null {
   return null;
 }
 
+function hideBrokenIcon(ev: Event): void {
+  (ev.target as HTMLImageElement).style.display = "none";
+}
+
 interface RegistryListResponse {
   source: "official" | "smithery" | "local";
   fromCache: boolean;
@@ -74,22 +83,20 @@ interface RegistryListResponse {
   errors: string[];
 }
 
-function specLabel(spec: string): string {
-  const eq = spec.indexOf("=");
-  return eq > 0 ? spec.slice(0, eq) : spec;
-}
-
-function specCommand(spec: string): string {
-  const eq = spec.indexOf("=");
-  return eq > 0 ? spec.slice(eq + 1) : spec;
-}
-
 type McpFilter = "all" | "live" | "unbridged" | "marketplace";
 
+interface McpFailure {
+  spec: string;
+  name: string;
+  reason: string;
+  at: number;
+}
+
 export function McpPanel() {
   useLang();
   const [data, setData] = useState<McpData | null>(null);
   const [specs, setSpecs] = useState<string[] | null>(null);
+  const [failures, setFailures] = useState<McpFailure[]>([]);
   const [error, setError] = useState<string | null>(null);
   const [info, setInfo] = useState<string | null>(null);
   const [newSpec, setNewSpec] = useState("");
@@ -164,8 +171,35 @@ export function McpPanel() {
 
   const load = useCallback(async () => {
     try {
-      setData(await api<McpData>("/mcp"));
-      setSpecs((await api<{ specs: string[] }>("/mcp/specs")).specs);
+      const mcpData = await api<McpData>("/mcp");
+      setData({
+        ...mcpData,
+        servers: (Array.isArray(mcpData.servers) ? mcpData.servers : []).map((server) => ({
+          ...server,
+          spec: normalizeMcpSpec(server.spec) ?? "",
+        })),
+      });
+      const specResponse = await api<{ specs?: unknown[]; failures?: unknown[] }>("/mcp/specs");
+      const normalized = (Array.isArray(specResponse.specs) ? specResponse.specs : [])
+        .map(normalizeMcpSpec)
+        .filter((spec): spec is string => spec !== null && spec.length > 0);
+      setSpecs(normalized);
+      const rawFailures = Array.isArray(specResponse.failures) ? specResponse.failures : [];
+      const validFailures: McpFailure[] = [];
+      for (const f of rawFailures) {
+        if (typeof f !== "object" || f === null) continue;
+        const o = f as Record<string, unknown>;
+        const rawSpec = typeof o.spec === "string" ? o.spec : "";
+        const norm = normalizeMcpSpec(rawSpec);
+        if (!norm) continue;
+        validFailures.push({
+          spec: norm,
+          name: typeof o.name === "string" ? o.name : "",
+          reason: typeof o.reason === "string" ? o.reason : "",
+          at: typeof o.at === "number" ? o.at : 0,
+        });
+      }
+      setFailures(validFailures);
     } catch (err) {
       setError((err as Error).message);
     }
@@ -331,8 +365,9 @@ export function McpPanel() {
           }
           ${
             showUnbridged
-              ? unbridgedSpecs.map(
-                  (spec) => html`
+              ? unbridgedSpecs.map((spec) => {
+                  const failure = failures.find((f) => f.spec === spec);
+                  return html`
                   <div
                     class=${`ssl-row ${openUnbridged === spec ? "sel" : ""}`}
                     onClick=${() => {
@@ -340,12 +375,12 @@ export function McpPanel() {
                       setOpen(null);
                     }}
                   >
-                    <span class="name">${specLabel(spec)} <span class="pill">${t("mcp.unbridged")}</span></span>
+                    <span class="name">${specLabel(spec)} <span class=${`pill ${failure ? "err" : ""}`}>${failure ? t("mcp.bridgeFailed") : t("mcp.unbridged")}</span></span>
                     <span class="preview">${specCommand(spec)}</span>
-                    <span class="meta"><span class="dim">${t("mcp.inConfig")}</span></span>
+                    <span class="meta"><span class=${failure ? "" : "dim"} style=${failure ? "color:var(--c-err)" : ""}>${failure ? failure.reason : t("mcp.inConfig")}</span></span>
                   </div>
-                `,
-                )
+                `;
+                })
               : null
           }
         </div>
@@ -366,10 +401,12 @@ export function McpPanel() {
                 onClose: () => setOpenRegistry(null),
               })
             : openUnbridged != null
-              ? html`
+              ? (() => {
+                  const failure = failures.find((f) => f.spec === openUnbridged);
+                  return html`
               <div class="sessions-detail-h">
                 <span class="name">${specLabel(openUnbridged)}</span>
-                <span class="ws"><span class="pill">${t("mcp.unbridgedTitle")}</span></span>
+                <span class="ws"><span class="pill">${failure ? t("mcp.bridgeFailedTitle") : t("mcp.unbridgedTitle")}</span></span>
                 <span class="actions">
                   <button class="btn" disabled=${busy} onClick=${() => removeSpec(openUnbridged)}
                     style="border-color:var(--c-err);color:var(--c-err)">${t("mcp.removeBtn")}</button>
@@ -380,16 +417,29 @@ export function McpPanel() {
                 <div class="card-h"><span class="title">${t("mcp.spec")}</span></div>
                 <code class="mono" style="font-size:11.5px;color:var(--fg-2);word-break:break-all">${openUnbridged}</code>
               </div>
-              <div class="card accent-warn">
-                <div class="card-h"><span class="title" style="color:var(--c-warn)">${t("mcp.whyUnbridged")}</span></div>
-                <div class="card-b" style="font-size:13px;line-height:1.6">
-                  ${t("mcp.whyUnbridgedDesc")}
-                  <div style="margin-top:10px;color:var(--fg-3);font-size:12px">
-                    ${t("mcp.whyUnbridgedHint")}
-                  </div>
-                </div>
-              </div>
-            `
+              ${
+                failure
+                  ? html`<div class="card accent-err">
+                      <div class="card-h"><span class="title" style="color:var(--c-err)">${t("mcp.bridgeFailed")}</span></div>
+                      <div class="card-b" style="font-size:13px;line-height:1.6">
+                        <code class="mono" style="font-size:12px;color:var(--fg-1);word-break:break-word;white-space:pre-wrap">${failure.reason}</code>
+                        <div style="margin-top:10px;color:var(--fg-3);font-size:12px">
+                          ${t("mcp.bridgeFailedHint")}
+                        </div>
+                      </div>
+                    </div>`
+                  : html`<div class="card accent-warn">
+                      <div class="card-h"><span class="title" style="color:var(--c-warn)">${t("mcp.whyUnbridged")}</span></div>
+                      <div class="card-b" style="font-size:13px;line-height:1.6">
+                        ${t("mcp.whyUnbridgedDesc")}
+                        <div style="margin-top:10px;color:var(--fg-3);font-size:12px">
+                          ${t("mcp.whyUnbridgedHint")}
+                        </div>
+                      </div>
+                    </div>`
+              }
+            `;
+                })()
               : open == null
                 ? html`<div style="color:var(--fg-3);font-size:13px;text-align:center;padding:60px 20px">
                 ${showMarketplace ? t("mcp.marketplacePickHint") : t("mcp.pickHint")}
@@ -551,7 +601,7 @@ function renderMarketplaceRows({
           ? html` <span class="dim">· ${fmtNum(e.popularity)}</span>`
           : null;
       const icon = e.iconUrl
-        ? html`<img src=${e.iconUrl} alt="" style="width:16px;height:16px;border-radius:3px;margin-right:6px;vertical-align:middle;object-fit:cover" loading="lazy" referrerpolicy="no-referrer" onError=${(ev: Event) => ((ev.target as HTMLImageElement).style.display = "none")} />`
+        ? html`<img src=${e.iconUrl} alt="" style="width:16px;height:16px;border-radius:3px;margin-right:6px;vertical-align:middle;object-fit:cover" loading="lazy" referrerpolicy="no-referrer" onError=${hideBrokenIcon} />`
         : null;
       return html`
         <div class=${`ssl-row ${sel ? "sel" : ""}`} onClick=${() => setOpenRegistry(e)}>
@@ -594,7 +644,7 @@ function renderRegistryDetail({
       }${entry.install.version ? `@${entry.install.version}` : ""}`
     : "";
   const icon = entry.iconUrl
-    ? html`<img src=${entry.iconUrl} alt="" style="width:24px;height:24px;border-radius:4px;margin-right:8px;vertical-align:middle;object-fit:cover" loading="lazy" referrerpolicy="no-referrer" onError=${(ev: Event) => ((ev.target as HTMLImageElement).style.display = "none")} />`
+    ? html`<img src=${entry.iconUrl} alt="" style="width:24px;height:24px;border-radius:4px;margin-right:8px;vertical-align:middle;object-fit:cover" loading="lazy" referrerpolicy="no-referrer" onError=${hideBrokenIcon} />`
     : null;
   return html`
     <div class="sessions-detail-h">

dashboard/src/panels/overview.ts

@@ -1,6 +1,8 @@
-import { fmtCompactNum, fmtNum, fmtRelativeTime, fmtUsd } from "../lib/format.js";
+import { budgetTone, deriveBudgetState } from "../lib/budget.js";
+import { fmtCompactNum, fmtCost, fmtNum, fmtRelativeTime, fmtUsd } from "../lib/format.js";
 import { html } from "../lib/html.js";
 import { usePoll } from "../lib/use-poll.js";
+import { compareVersions } from "../lib/version.js";
 import { t, useLang } from "../i18n/index.js";
 
 interface CockpitKpi {
@@ -65,6 +67,9 @@ interface OverviewData {
   toolCount?: number;
   cwd?: string;
   cockpit?: CockpitData;
+  budgetUsd?: number | null;
+  /** Cumulative session spend in USD — set when a session is attached. */
+  sessionSpendUsd?: number | null;
 }
 
 function kpi(label: string, value: unknown, delta?: unknown, deltaTone?: "up" | "down" | "flat") {
@@ -107,6 +112,25 @@ function balanceKpi(c: CockpitData) {
   return kpi(t("overview.balance"), `${symbol}${c.balance.total}`, c.balance.currency, "flat");
 }
 
+function budgetKpi(o: OverviewData) {
+  const state = deriveBudgetState(o.budgetUsd, o.cockpit?.currentSession?.totalCostUsd ?? null);
+  if (state.kind === "off") return null;
+  const tone = budgetTone(state);
+  const valueColor =
+    tone === "err"
+      ? "color:var(--c-err)"
+      : tone === "warn"
+        ? "color:var(--c-warn)"
+        : "";
+  return html`
+    <div class="kpi cock-w-1">
+      <div class="label">${t("overview.budget")}</div>
+      <div class="value" style=${valueColor}>${fmtUsd(state.spent)} / ${fmtUsd(state.cap)}</div>
+      <div class=${`progress ${tone}`} style="margin-top:4px"><div class="progress-fill" style=${`width:${Math.min(100, state.pct)}%`}></div></div>
+    </div>
+  `;
+}
+
 function tokens7dKpi(c: CockpitData) {
   if (!c.tokens7d) return kpi(t("overview.tokens7d"), "—", t("overview.noUsageYet"), "flat");
   const d = deltaPctText(c.tokens7d.deltaPct);
@@ -144,6 +168,7 @@ function currentSessionBlock(c: CockpitData) {
     `;
   }
   const s = c.currentSession;
+  const currency = c.balance?.currency;
   return html`
     <div class="cock-list cock-w-2">
       <div class="ch"><span class="ttl">${t("overview.currentSession")}</span></div>
@@ -153,7 +178,7 @@ function currentSessionBlock(c: CockpitData) {
       <div style="display:grid;grid-template-columns:repeat(3, 1fr);gap:8px;font-family:var(--font-mono);font-size:11px">
         <div><span style="color:var(--fg-3)">${t("overview.promptTok")}</span><div style="color:var(--fg-0);font-size:13px;font-weight:600">${fmtNum(s.lastPromptTokens)}</div></div>
         <div><span style="color:var(--fg-3)">${t("overview.completionTok")}</span><div style="color:var(--fg-0);font-size:13px;font-weight:600">${fmtNum(s.completionTokens)}</div></div>
-        <div><span style="color:var(--fg-3)">${t("overview.cost")}</span><div style="color:var(--fg-0);font-size:13px;font-weight:600">${fmtUsd(s.totalCostUsd)}</div></div>
+        <div><span style="color:var(--fg-3)">${t("overview.cost")}</span><div style="color:var(--fg-0);font-size:13px;font-weight:600">${fmtCost(s.totalCostUsd, currency)}</div></div>
       </div>
     </div>
   `;
@@ -185,7 +210,7 @@ function costTrendSpark(c: CockpitData) {
   return html`
     <div class="chart cock-w-2">
       <div class="chart-h"><span class="title">${t("overview.costTrend")}</span></div>
-      <div class="chart-v">${fmtUsd(avg)}<span class="unit">${t("overview.dayAvg")}</span></div>
+      <div class="chart-v">${fmtCost(avg, c.balance?.currency)}<span class="unit">${t("overview.dayAvg")}</span></div>
       <div class="chart-spark">
         <svg viewBox=${`0 0 ${w} ${h}`} preserveAspectRatio="none">
           <polyline fill="none" stroke="var(--c-brand)" stroke-width="1.5" points=${points} />
@@ -256,7 +281,8 @@ export function OverviewPanel() {
     recentPlans: null,
     toolActivity: null,
   };
-  const upToDate = o.latestVersion ? o.latestVersion === o.version : null;
+  const upToDate =
+    o.latestVersion && o.version ? compareVersions(o.version, o.latestVersion) >= 0 : null;
   const versionDelta =
     upToDate === null ? t("overview.checking") : upToDate ? t("overview.latest") : `latest: ${o.latestVersion}`;
   const versionTone: "up" | "down" | "flat" = upToDate === false ? "down" : "flat";
@@ -284,6 +310,7 @@ export function OverviewPanel() {
         ${tokens7dKpi(c)}
         ${cacheHitKpi(c)}
         ${toolCallsKpi(c)}
+        ${budgetKpi(o)}
 
         ${currentSessionBlock(c)}
         ${costTrendSpark(c)}

dashboard/src/panels/permissions.ts

@@ -122,8 +122,8 @@ export function PermissionsPanel() {
       }
 
       <div class="chips">
-        <span class="chip-f active">${t("permissions.project")} <span class="ct">${p.project.length}</span></span>
-        <span class="chip-f">${t("permissions.builtin")} <span class="ct">${p.builtin.length}</span></span>
+        <span class="chip-f static active">${t("permissions.project")} <span class="ct">${p.project.length}</span></span>
+        <span class="chip-f static">${t("permissions.builtin")} <span class="ct">${p.builtin.length}</span></span>
       </div>
 
       ${

dashboard/src/panels/plans.ts

@@ -29,7 +29,7 @@ interface PlansData {
 function statusPill(p: ArchivedPlan) {
   if (p.completionRatio >= 1) return html`<span class="pill ok">${t("plans.done")}</span>`;
   if (p.completionRatio > 0) return html`<span class="pill info">${t("plans.active")}</span>`;
-  return html`<span class="pill">idle</span>`;
+  return html`<span class="pill">${t("plans.idle")}</span>`;
 }
 
 export function PlansPanel() {
@@ -37,6 +37,7 @@ export function PlansPanel() {
   const { data, error, loading } = usePoll<PlansData>("/plans", 8000);
   const [openIdx, setOpenIdx] = useState<number | null>(null);
   const [filter, setFilter] = useState("");
+  const [statusFilter, setStatusFilter] = useState<"all" | "active" | "done">("all");
 
   if (loading && !data)
     return html`<div class="card" style="color:var(--fg-3)">${t("plans.loading")}</div>`;
@@ -48,13 +49,19 @@ export function PlansPanel() {
       ${t("plans.noPlans")}
     </div>`;
 
+  const statusFiltered =
+    statusFilter === "all"
+      ? plans
+      : statusFilter === "active"
+        ? plans.filter((p) => p.completionRatio > 0 && p.completionRatio < 1)
+        : plans.filter((p) => p.completionRatio >= 1);
   const filtered = filter.trim()
-    ? plans.filter(
+    ? statusFiltered.filter(
         (p) =>
           p.session.toLowerCase().includes(filter.toLowerCase()) ||
           (p.summary ?? "").toLowerCase().includes(filter.toLowerCase()),
       )
-    : plans;
+    : statusFiltered;
 
   const open = openIdx !== null ? plans[openIdx] : null;
 
@@ -71,12 +78,21 @@ export function PlansPanel() {
           />
         </div>
         <div class="chips" style="padding:0 12px 8px">
-          <span class="chip-f active">${t("common.all")} <span class="ct">${plans.length}</span></span>
-          <span class="chip-f">
+          <span
+            class=${`chip-f ${statusFilter === "all" ? "active" : ""}`}
+            onClick=${() => setStatusFilter("all")}
+          >${t("common.all")} <span class="ct">${plans.length}</span></span>
+          <span
+            class=${`chip-f ${statusFilter === "active" ? "active" : ""}`}
+            onClick=${() => setStatusFilter("active")}
+          >
             ${t("plans.active")}
             <span class="ct">${plans.filter((p) => p.completionRatio > 0 && p.completionRatio < 1).length}</span>
           </span>
-          <span class="chip-f">
+          <span
+            class=${`chip-f ${statusFilter === "done" ? "active" : ""}`}
+            onClick=${() => setStatusFilter("done")}
+          >
             ${t("plans.done")} <span class="ct">${plans.filter((p) => p.completionRatio >= 1).length}</span>
           </span>
         </div>

dashboard/src/panels/semantic.ts

@@ -1,13 +1,52 @@
-import { useCallback, useEffect, useState } from "preact/hooks";
+import { useCallback, useEffect, useRef, useState } from "preact/hooks";
+import { t, useLang } from "../i18n/index.js";
 import { api } from "../lib/api.js";
 import { fmtBytes, fmtNum, fmtRelativeTime } from "../lib/format.js";
 import { html } from "../lib/html.js";
-import { t, useLang } from "../i18n/index.js";
+
+interface SemanticConfigView {
+  provider: "ollama" | "openai-compat";
+  ollama: {
+    baseUrl: string;
+    model: string;
+  };
+  openaiCompat: {
+    baseUrl: string;
+    apiKey: string;
+    apiKeySet: boolean;
+    model: string;
+    extraBody: Record<string, unknown>;
+    batchSize: number;
+  };
+}
 
 interface SemanticData {
   attached?: boolean;
   reason?: string;
   root?: string;
+  provider?: "ollama" | "openai-compat";
+  providerConfig?: SemanticConfigView;
+  providerStatus?:
+    | {
+        kind: "ollama";
+        ready: boolean;
+        baseUrl: string;
+        binaryFound?: boolean;
+        daemonRunning?: boolean;
+        modelPulled?: boolean;
+        modelName?: string;
+        installedModels?: string[];
+        error?: string;
+      }
+    | {
+        kind: "openai-compat";
+        ready: boolean;
+        baseUrl: string;
+        apiKeySet: boolean;
+        model: string;
+        extraBodyKeys: string[];
+        batchSize: number;
+      };
   index?: IndexInfo;
   job?: SemanticJob | null;
   pull?: { status: string; startedAt: number; lastLine?: string } | null;
@@ -23,17 +62,25 @@ interface SemanticData {
 
 interface IndexInfo {
   exists: boolean;
+  provider?: "ollama" | "openai-compat";
   chunks?: number;
   files?: number;
   dim?: number;
   sizeBytes?: number;
   lastBuiltMs?: number;
   model?: string;
+  builtWith?: { provider: "ollama" | "openai-compat"; model: string };
+  current?: { provider: "ollama" | "openai-compat"; model: string };
+  compatible?: boolean;
+  mismatch?: "provider" | "model" | null;
 }
 
 interface SemanticJob {
   phase: string;
   startedAt: number;
+  finishedAt?: number | null;
+  cancelledAt?: number | null;
+  lastPhase?: string | null;
   chunksTotal?: number;
   chunksDone?: number;
   filesScanned?: number;
@@ -50,17 +97,45 @@ interface SemanticJob {
   };
 }
 
+interface SemanticConfigDraft {
+  provider: "ollama" | "openai-compat";
+  ollama: {
+    baseUrl: string;
+    model: string;
+  };
+  openaiCompat: {
+    baseUrl: string;
+    apiKey: string;
+    model: string;
+    extraBodyText: string;
+    batchSize: number;
+    apiKeySet: boolean;
+  };
+}
+
+export interface SemanticDraftValidation {
+  extraBody: Record<string, unknown>;
+  error: string | null;
+}
+
 export function SemanticPanel() {
   useLang();
   const [data, setData] = useState<SemanticData | null>(null);
+  const [draft, setDraft] = useState<SemanticConfigDraft | null>(null);
+  const [draftDirty, setDraftDirty] = useState(false);
+  const draftDirtyRef = useRef(false);
   const [error, setError] = useState<string | null>(null);
   const [busy, setBusy] = useState(false);
   const [info, setInfo] = useState<string | null>(null);
 
   const load = useCallback(async () => {
     try {
-      const r = await api<SemanticData>("/semantic");
-      setData(r);
+      const [semantic, config] = await Promise.all([
+        api<SemanticData>("/semantic"),
+        api<SemanticConfigView>("/semantic/config"),
+      ]);
+      setData(semantic);
+      setDraft((current) => (current && draftDirtyRef.current ? current : toConfigDraft(config)));
     } catch (err) {
       setError((err as Error).message);
     }
@@ -69,7 +144,7 @@ export function SemanticPanel() {
   useEffect(() => {
     load();
     const phase = data?.job?.phase;
-    const running = phase === "scan" || phase === "embed" || phase === "write";
+    const running = isActiveSemanticPhase(phase);
     const pulling = data?.pull?.status === "pulling";
     const ms = running || pulling ? 1200 : 5000;
     const id = setInterval(load, ms);
@@ -78,10 +153,18 @@ export function SemanticPanel() {
 
   const start = useCallback(
     async (rebuild: boolean) => {
+      if (!draft) return;
       setBusy(true);
       setError(null);
       setInfo(null);
       try {
+        const validation = validateSemanticDraft(draft);
+        if (draftDirty) {
+          throw new Error(t("semantic.saveBeforeIndex"));
+        }
+        if (validation.error) {
+          throw new Error(validation.error);
+        }
         await api("/semantic/start", { method: "POST", body: { rebuild: !!rebuild } });
         setInfo(rebuild ? t("semantic.rebuildStarted") : t("semantic.incrementalStarted"));
         await load();
@@ -91,7 +174,7 @@ export function SemanticPanel() {
         setBusy(false);
       }
     },
-    [load],
+    [draft, draftDirty, load],
   );
 
   const stop = useCallback(async () => {
@@ -113,10 +196,11 @@ export function SemanticPanel() {
     setError(null);
     setInfo(t("semantic.startingDaemon"));
     try {
-      const r = await api<{ ready: boolean }>("/semantic/ollama/start", { method: "POST", body: {} });
-      setInfo(
-        r.ready ? t("semantic.daemonUp") : t("semantic.daemonTimeout"),
-      );
+      const r = await api<{ ready: boolean }>("/semantic/ollama/start", {
+        method: "POST",
+        body: {},
+      });
+      setInfo(r.ready ? t("semantic.daemonUp") : t("semantic.daemonTimeout"));
       await load();
     } catch (err) {
       setError((err as Error).message);
@@ -142,10 +226,46 @@ export function SemanticPanel() {
     [load],
   );
 
-  if (!data && !error)
+  const saveProviderConfig = useCallback(async () => {
+    if (!draft) return;
+    setBusy(true);
+    setError(null);
+    setInfo(null);
+    try {
+      const extraBody = semanticValidation.extraBody;
+      await api("/semantic/config", {
+        method: "POST",
+        body: {
+          provider: draft.provider,
+          ollama: {
+            baseUrl: draft.ollama.baseUrl,
+            model: draft.ollama.model,
+          },
+          openaiCompat: {
+            baseUrl: draft.openaiCompat.baseUrl,
+            apiKey: draft.openaiCompat.apiKey,
+            model: draft.openaiCompat.model,
+            extraBody,
+            batchSize: draft.openaiCompat.batchSize,
+          },
+        },
+      });
+      setDraftDirty(false);
+      draftDirtyRef.current = false;
+      setInfo(t("semantic.savedConfig", { count: 1 }));
+      await load();
+    } catch (err) {
+      setError((err as Error).message);
+    } finally {
+      setBusy(false);
+    }
+  }, [draft, load]);
+
+  if (!data && !error) {
     return html`<div class="card" style="color:var(--fg-3)">${t("common.loading")}</div>`;
+  }
   if (error && !data) return html`<div class="card accent-err">${error}</div>`;
-  if (!data) return null;
+  if (!data || !draft) return null;
 
   if (!data.attached) {
     return html`
@@ -158,43 +278,206 @@ export function SemanticPanel() {
 
   const job = data.job;
   const phase = job?.phase;
-  const running = phase === "scan" || phase === "embed" || phase === "write";
+  const running = isActiveSemanticPhase(phase);
   const pull = data.pull;
   const pulling = pull?.status === "pulling";
-
-  const o = data.ollama ?? {};
-  const binaryFound = o.binaryFound === true;
-  const daemonRunning = o.daemonRunning === true;
-  const modelPulled = o.modelPulled === true;
-  const modelName = o.modelName ?? "nomic-embed-text";
-  const installedModels = o.installedModels ?? [];
-  const ready = binaryFound && daemonRunning && modelPulled;
+  const provider = data.providerStatus?.kind ?? draft.provider;
+  const ready = data.providerStatus?.ready === true;
+  const isOllama = provider === "ollama";
+  const ollama = data.providerStatus?.kind === "ollama" ? data.providerStatus : null;
+  const remote = data.providerStatus?.kind === "openai-compat" ? data.providerStatus : null;
+  const binaryFound = ollama?.binaryFound === true;
+  const daemonRunning = ollama?.daemonRunning === true;
+  const modelPulled = ollama?.modelPulled === true;
+  const modelName = isOllama
+    ? (ollama?.modelName ?? draft.ollama.model ?? "nomic-embed-text")
+    : draft.openaiCompat.model;
 
   const sectionH3 = (text: string) => html`
     <h3 style="margin:18px 0 8px;font-family:var(--font-mono);font-size:11px;color:var(--fg-3);text-transform:uppercase;letter-spacing:.1em">${text}</h3>
   `;
 
   const idx = data.index;
+  const indexReady = idx?.exists === true && idx.compatible !== false;
+  const indexMismatch = idx?.exists === true && idx.compatible === false;
+  const semanticValidation = validateSemanticDraft(draft);
+  const semanticDraftBlocked = draftDirty || semanticValidation.error !== null;
   return html`
     <div style="display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:14px;align-items:start">
       <div style="display:flex;flex-direction:column;gap:10px;min-width:0">
         <div class="chips">
-          <span class=${`chip-f ${idx?.exists ? "active" : ""}`}>
-            ${idx?.exists ? t("semantic.indexBuilt") : t("semantic.noIndex")}
+          <span class=${`chip-f static ${indexReady ? "active" : ""}`}>
+            ${indexReady ? t("semantic.indexBuilt") : t("semantic.noIndex")}
           </span>
           ${
             ready
-              ? html`<span class="chip-f" style="border-color:var(--c-ok);color:var(--c-ok)">${t("semantic.ready")}</span>`
-              : html`<span class="chip-f" style="border-color:var(--c-warn);color:var(--c-warn)">${t("semantic.setupNeeded")}</span>`
+              ? html`<span class="chip-f static" style="border-color:var(--c-ok);color:var(--c-ok)">${t("semantic.ready")}</span>`
+              : html`<span class="chip-f static" style="border-color:var(--c-warn);color:var(--c-warn)">${t("semantic.setupNeeded")}</span>`
           }
         </div>
-        ${info ? html`<div><span class="pill info">${info}</span></div>` : null}
         ${error ? html`<div class="card accent-err">${error}</div>` : null}
 
-        ${idx?.exists ? html`<${SemanticSearchSection} />` : null}
+        <div class="card">
+          <div class="card-h"><span class="title">${t("semantic.provider")}</span></div>
+          <div class="form-row">
+            <span class="lbl">${t("semantic.providerType")}</span>
+            <select
+              class="input mono"
+              value=${draft.provider}
+              onInput=${(e: Event) => {
+                draftDirtyRef.current = true;
+                setDraftDirty(true);
+                setDraft({
+                  ...draft,
+                  provider: (e.target as HTMLSelectElement).value as "ollama" | "openai-compat",
+                });
+              }}
+            >
+              <option value="ollama">Ollama</option>
+              <option value="openai-compat">OpenAI-Compatible</option>
+            </select>
+          </div>
+          ${
+            draft.provider === "ollama"
+              ? html`
+                <div class="form-row">
+                  <span class="lbl">${t("semantic.model")}</span>
+                  <input
+                    class="input mono"
+                    type="text"
+                    value=${draft.ollama.model}
+                    onInput=${(e: Event) => {
+                      draftDirtyRef.current = true;
+                      setDraftDirty(true);
+                      setDraft({
+                        ...draft,
+                        ollama: { ...draft.ollama, model: (e.target as HTMLInputElement).value },
+                      });
+                    }}
+                  />
+                </div>
+              `
+              : html`
+                <div class="form-row">
+                  <span class="lbl">${t("semantic.apiUrl")}</span>
+                  <input
+                    class="input mono"
+                    type="text"
+                    placeholder="https://api.openai.com/v1/embeddings"
+                    value=${draft.openaiCompat.baseUrl}
+                    onInput=${(e: Event) => {
+                      draftDirtyRef.current = true;
+                      setDraftDirty(true);
+                      setDraft({
+                        ...draft,
+                        openaiCompat: {
+                          ...draft.openaiCompat,
+                          baseUrl: (e.target as HTMLInputElement).value,
+                        },
+                      });
+                    }}
+                  />
+                </div>
+                <div class="form-row">
+                  <span class="lbl">${t("semantic.apiKey")}</span>
+                  <input
+                    class="input mono"
+                    type="password"
+                    placeholder=${draft.openaiCompat.apiKeySet ? t("semantic.keepExistingKey") : "sk-..."}
+                    value=${draft.openaiCompat.apiKey}
+                    onInput=${(e: Event) => {
+                      draftDirtyRef.current = true;
+                      setDraftDirty(true);
+                      setDraft({
+                        ...draft,
+                        openaiCompat: {
+                          ...draft.openaiCompat,
+                          apiKey: (e.target as HTMLInputElement).value,
+                        },
+                      });
+                    }}
+                  />
+                  <div style="color:var(--fg-3);font-size:12px">${t("semantic.apiKeyStoredNote")}</div>
+                </div>
+                <div class="form-row">
+                  <span class="lbl">${t("semantic.model")}</span>
+                  <input
+                    class="input mono"
+                    type="text"
+                    value=${draft.openaiCompat.model}
+                    onInput=${(e: Event) => {
+                      draftDirtyRef.current = true;
+                      setDraftDirty(true);
+                      setDraft({
+                        ...draft,
+                        openaiCompat: {
+                          ...draft.openaiCompat,
+                          model: (e.target as HTMLInputElement).value,
+                        },
+                      });
+                    }}
+                  />
+                </div>
+                <div class="form-row">
+                  <span class="lbl">${t("semantic.batchSize")}</span>
+                  <input
+                    class="input mono"
+                    type="number"
+                    min="1"
+                    value=${draft.openaiCompat.batchSize}
+                    onInput=${(e: Event) => {
+                      const v = Number.parseInt((e.target as HTMLInputElement).value, 10);
+                      draftDirtyRef.current = true;
+                      setDraftDirty(true);
+                      setDraft({
+                        ...draft,
+                        openaiCompat: {
+                          ...draft.openaiCompat,
+                          batchSize: Number.isInteger(v) && v > 0 ? v : 10,
+                        },
+                      });
+                    }}
+                  />
+                </div>
+                <details style="margin-top:10px">
+                  <summary style="cursor:pointer;color:var(--fg-2);font-size:12px">${t("semantic.customRequestBody")}</summary>
+                  <div class="form-row" style="margin-top:10px">
+                    <span class="lbl">${t("semantic.customRequestBody")}</span>
+                    <textarea
+                      class="input mono"
+                      rows="6"
+                      value=${draft.openaiCompat.extraBodyText}
+                      onInput=${(e: Event) => {
+                        draftDirtyRef.current = true;
+                        setDraftDirty(true);
+                        setDraft({
+                          ...draft,
+                          openaiCompat: {
+                            ...draft.openaiCompat,
+                            extraBodyText: (e.target as HTMLTextAreaElement).value,
+                          },
+                        });
+                      }}
+                    ></textarea>
+                  </div>
+                </details>
+                ${
+                  semanticValidation.error
+                    ? html`<div style="color:var(--c-err);font-size:12px;margin-top:-2px">${semanticValidation.error}</div>`
+                    : null
+                }
+              `
+          }
+          <div style="display:flex;gap:6px;margin-top:10px">
+            <button class="btn primary" disabled=${busy || semanticValidation.error !== null} onClick=${saveProviderConfig}>${t("common.save")}</button>
+          </div>
+        </div>
+        ${info ? html`<div><span class="pill info">${info}</span></div>` : null}
+
+        ${indexReady ? html`<${SemanticSearchSection} />` : null}
 
         ${
-          !binaryFound
+          isOllama && !binaryFound
             ? html`
               <div class="card">
                 <div class="card-h"><span class="title">${t("semantic.installOllama")}</span></div>
@@ -211,7 +494,7 @@ export function SemanticPanel() {
             : null
         }
         ${
-          binaryFound && !daemonRunning
+          isOllama && binaryFound && !daemonRunning
             ? html`
               <div class="card">
                 <div class="card-h"><span class="title">${t("semantic.daemon")}</span></div>
@@ -227,7 +510,7 @@ export function SemanticPanel() {
             : null
         }
         ${
-          daemonRunning && !modelPulled
+          isOllama && daemonRunning && !modelPulled
             ? html`
               <div class="card">
                 <div class="card-h"><span class="title">${t("semantic.model")}</span></div>
@@ -254,6 +537,18 @@ export function SemanticPanel() {
             `
             : null
         }
+        ${
+          !isOllama
+            ? html`
+              <div class="card">
+                <div class="card-h"><span class="title">${t("semantic.remoteProvider")}</span></div>
+                <div class="card-b" style="font-size:13px;color:var(--fg-2)">
+                  ${t("semantic.remoteProviderDesc")}
+                </div>
+              </div>
+            `
+            : null
+        }
 
         ${
           job
@@ -272,7 +567,9 @@ export function SemanticPanel() {
             <span class="meta">
               ${
                 idx?.exists
-                  ? html`<span class="pill ok">${t("semantic.builtStatus")}</span>`
+                  ? idx.compatible === false
+                    ? html`<span class="pill warn">${t("semantic.incompatibleStatus")}</span>`
+                    : html`<span class="pill ok">${t("semantic.builtStatus")}</span>`
                   : html`<span class="pill">${t("system.none")}</span>`
               }
             </span>
@@ -280,44 +577,57 @@ export function SemanticPanel() {
           ${
             idx?.exists
               ? html`
+                <div class="rail-kv"><span class="k">${t("semantic.provider")}</span><span class="v">${idx.builtWith?.provider ?? idx.provider ?? provider}</span></div>
                 <div class="rail-kv"><span class="k">${t("semantic.chunks")}</span><span class="v">${fmtNum(idx.chunks)}</span></div>
                 <div class="rail-kv"><span class="k">${t("semantic.files")}</span><span class="v">${fmtNum(idx.files)}</span></div>
-                <div class="rail-kv"><span class="k">${t("semantic.model")}</span><span class="v" style="font-size:11px">${idx.model ?? modelName}</span></div>
+                <div class="rail-kv"><span class="k">${t("semantic.model")}</span><span class="v" style="font-size:11px">${idx.builtWith?.model ?? idx.model ?? modelName}</span></div>
                 <div class="rail-kv"><span class="k">${t("semantic.dim")}</span><span class="v">${fmtNum(idx.dim)}</span></div>
                 <div class="rail-kv"><span class="k">${t("semantic.size")}</span><span class="v">${fmtBytes(idx.sizeBytes)}</span></div>
                 <div class="rail-kv"><span class="k">${t("semantic.lastBuild")}</span><span class="v">${fmtRelativeTime(idx.lastBuiltMs ?? null)}</span></div>
+                ${
+                  idx.compatible === false
+                    ? html`
+                      <div class="rail-kv"><span class="k">${t("semantic.builtWith")}</span><span class="v" style="font-size:11px">${idx.builtWith?.provider} · ${idx.builtWith?.model}</span></div>
+                      <div class="rail-kv"><span class="k">${t("semantic.currentTarget")}</span><span class="v" style="font-size:11px">${idx.current?.provider} · ${idx.current?.model}</span></div>
+                      <div style="color:var(--c-warn);font-size:12px;padding-top:8px">${t("semantic.incompatibleHint")}</div>
+                    `
+                    : null
+                }
               `
-              : html`
-                <div style="color:var(--fg-3);font-size:12.5px;padding:6px 0">
-                  ${t("semantic.runIndexHint")}
-                </div>
-              `
+              : html`<div style="color:var(--fg-3);font-size:12.5px;padding:6px 0">${t("semantic.runIndexHint")}</div>`
           }
           <div style="display:flex;gap:6px;margin-top:10px;flex-wrap:wrap">
-            <button class="primary" disabled=${busy || running || !ready} onClick=${() => start(false)}>${idx?.exists ? t("semantic.reIndex") : t("semantic.build")}</button>
+            <button class="primary" disabled=${busy || running || !ready || semanticDraftBlocked} onClick=${() => start(false)}>${indexReady ? t("semantic.reIndex") : t("semantic.build")}</button>
             ${
               idx?.exists
-                ? html`<button disabled=${busy || running || !ready} onClick=${() => start(true)}>${t("semantic.rebuild")}</button>`
+                ? html`<button disabled=${busy || running || !ready || semanticDraftBlocked} onClick=${() => start(true)}>${t("semantic.rebuild")}</button>`
+                : null
+            }
+            ${
+              running
+                ? html`<button onClick=${stop} style="border-color:var(--c-err);color:var(--c-err)">${t("semantic.stop")}</button>`
                 : null
             }
-            ${running ? html`<button onClick=${stop} style="border-color:var(--c-err);color:var(--c-err)">${t("semantic.stop")}</button>` : null}
           </div>
         </div>
 
         <div class="card">
-          <div class="card-h"><span class="title">${t("semantic.ollama")}</span></div>
-          <div class="rail-kv">
-            <span class="k">${t("semantic.binary")}</span>
-            <span class="v">${binaryFound ? html`<span class="pill ok">${t("semantic.found")}</span>` : html`<span class="pill err">${t("semantic.missing")}</span>`}</span>
-          </div>
-          <div class="rail-kv">
-            <span class="k">${t("semantic.daemonStatus")}</span>
-            <span class="v">${daemonRunning ? html`<span class="pill ok">${t("semantic.up")}</span>` : html`<span class="pill warn">${t("semantic.down")}</span>`}</span>
-          </div>
-          <div class="rail-kv">
-            <span class="k">${t("semantic.model")}</span>
-            <span class="v">${modelPulled ? html`<span class="pill ok">${t("semantic.pulled")}</span>` : html`<span class="pill warn">${t("semantic.missing")}</span>`}</span>
-          </div>
+          <div class="card-h"><span class="title">${isOllama ? t("semantic.ollama") : t("semantic.openaiCompat")}</span></div>
+          ${
+            isOllama
+              ? html`
+                <div class="rail-kv"><span class="k">${t("semantic.binary")}</span><span class="v">${binaryFound ? html`<span class="pill ok">${t("semantic.found")}</span>` : html`<span class="pill err">${t("semantic.missing")}</span>`}</span></div>
+                <div class="rail-kv"><span class="k">${t("semantic.daemonStatus")}</span><span class="v">${daemonRunning ? html`<span class="pill ok">${t("semantic.up")}</span>` : html`<span class="pill warn">${t("semantic.down")}</span>`}</span></div>
+                <div class="rail-kv"><span class="k">${t("semantic.model")}</span><span class="v">${modelPulled ? html`<span class="pill ok">${t("semantic.pulled")}</span>` : html`<span class="pill warn">${t("semantic.missing")}</span>`}</span></div>
+              `
+              : html`
+                <div class="rail-kv"><span class="k">${t("semantic.apiUrl")}</span><span class="v" style="font-size:11px;max-width:160px;overflow-wrap:anywhere;word-break:break-word;text-align:right">${remote?.baseUrl ?? draft.openaiCompat.baseUrl}</span></div>
+                <div class="rail-kv"><span class="k">${t("semantic.apiKey")}</span><span class="v">${remote?.apiKeySet ? html`<span class="pill ok">${t("semantic.found")}</span>` : html`<span class="pill warn">${t("semantic.missing")}</span>`}</span></div>
+                <div class="rail-kv"><span class="k">${t("semantic.model")}</span><span class="v" style="font-size:11px">${remote?.model ?? draft.openaiCompat.model}</span></div>
+                <div class="rail-kv"><span class="k">${t("semantic.extraBody")}</span><span class="v">${fmtNum(remote?.extraBodyKeys.length ?? 0)}</span></div>
+                <div class="rail-kv"><span class="k">${t("semantic.batchSize")}</span><span class="v">${remote?.batchSize ?? 10}</span></div>
+              `
+          }
         </div>
 
         <${SemanticExcludesCard} />
@@ -326,6 +636,47 @@ export function SemanticPanel() {
   `;
 }
 
+function toConfigDraft(config: SemanticConfigView): SemanticConfigDraft {
+  return {
+    provider: config.provider,
+    ollama: {
+      baseUrl: config.ollama.baseUrl,
+      model: config.ollama.model,
+    },
+    openaiCompat: {
+      baseUrl: config.openaiCompat.baseUrl,
+      apiKey: "",
+      model: config.openaiCompat.model,
+      extraBodyText: JSON.stringify(config.openaiCompat.extraBody ?? {}, null, 2),
+      batchSize: config.openaiCompat.batchSize,
+      apiKeySet: config.openaiCompat.apiKeySet,
+    },
+  };
+}
+
+export function validateSemanticDraft(draft: SemanticConfigDraft): SemanticDraftValidation {
+  if (draft.provider !== "openai-compat") {
+    return { extraBody: {}, error: null };
+  }
+  const raw = draft.openaiCompat.extraBodyText.trim();
+  if (!raw) {
+    return { extraBody: {}, error: null };
+  }
+  let parsed: unknown;
+  try {
+    parsed = JSON.parse(raw);
+  } catch (err) {
+    return {
+      extraBody: {},
+      error: t("semantic.invalidCustomRequestBody", { error: (err as Error).message }),
+    };
+  }
+  if (!isPlainObject(parsed)) {
+    return { extraBody: {}, error: t("semantic.customRequestBodyMustBeObject") };
+  }
+  return { extraBody: parsed, error: null };
+}
+
 interface IndexConfig {
   excludeDirs?: string[];
   excludeFiles?: string[];
@@ -367,6 +718,7 @@ interface SearchHit {
 interface SearchResponse {
   hits: SearchHit[];
   elapsedMs: number;
+  provider?: string;
   model: string;
 }
 
@@ -422,13 +774,15 @@ function SemanticSearchSection() {
         hits || busy || error
           ? html`
             <div style="font-family:var(--font-mono);font-size:11px;color:var(--fg-3);margin:8px 0 6px;display:flex;align-items:center;gap:8px">
-              ${busy
-                ? html`<span>${t("semantic.searching")}</span>`
-                : error
-                ? html`<span style="color:var(--c-err)">${error}</span>`
-                : hits
-                ? html`<span>${t("semantic.results", { count: hits.length, s: hits.length === 1 ? "" : "s", ms: meta?.elapsedMs ?? 0, model: meta?.model ?? "" })}</span>`
-                : null}
+              ${
+                busy
+                  ? html`<span>${t("semantic.searching")}</span>`
+                  : error
+                    ? html`<span style="color:var(--c-err)">${error}</span>`
+                    : hits
+                      ? html`<span>${t("semantic.results", { count: hits.length, s: hits.length === 1 ? "" : "s", ms: meta?.elapsedMs ?? 0, model: meta?.model ?? "" })}</span>`
+                      : null
+              }
             </div>
             ${
               hits && hits.length > 0
@@ -449,8 +803,8 @@ function SemanticSearchSection() {
                   </div>
                 `
                 : hits && hits.length === 0 && !busy
-                ? html`<div class="card" style="color:var(--fg-3);font-size:12px">${t("semantic.noMatches")}</div>`
-                : null
+                  ? html`<div class="card" style="color:var(--fg-3);font-size:12px">${t("semantic.noMatches")}</div>`
+                  : null
             }
           `
           : null
@@ -570,11 +924,7 @@ function SemanticExcludesCard() {
       <div class="card-h">
         <span class="title">${t("semantic.indexConfig")}</span>
         <span class="meta">
-          <a
-            class="mono"
-            style="color:var(--c-brand);text-decoration:none;font-size:11px;cursor:pointer"
-            onClick=${reset}
-          >${t("semantic.reset")}</a>
+          <a class="mono" style="color:var(--c-brand);text-decoration:none;font-size:11px;cursor:pointer" onClick=${reset}>${t("semantic.reset")}</a>
         </span>
       </div>
       ${info ? html`<div style="margin-bottom:8px"><span class="pill ok">${info}</span></div>` : null}
@@ -606,11 +956,7 @@ function SemanticExcludesCard() {
         placeholder="**/*.test.ts"
       />
 
-      <div
-        class="checkbox-row"
-        style="margin-top:8px;cursor:pointer"
-        onClick=${() => setDraft({ ...draft, respectGitignore: !draft.respectGitignore })}
-      >
+      <div class="checkbox-row" style="margin-top:8px;cursor:pointer" onClick=${() => setDraft({ ...draft, respectGitignore: !draft.respectGitignore })}>
         <span class=${`box ${draft.respectGitignore ? "on" : ""}`}>${draft.respectGitignore ? "✓" : ""}</span>
         <span>${t("semantic.respectGitignore")}</span>
       </div>
@@ -623,17 +969,14 @@ function SemanticExcludesCard() {
           min="1024"
           step="1024"
           value=${draft.maxFileBytes}
-          onInput=${(e: Event) =>
-            setDraft({ ...draft, maxFileBytes: Number((e.target as HTMLInputElement).value) || 0 })}
+          onInput=${(e: Event) => setDraft({ ...draft, maxFileBytes: Number((e.target as HTMLInputElement).value) || 0 })}
           style="font-size:12px"
         />
         <span class="help">${t("semantic.skipLarger", { size: (draft.maxFileBytes / 1024 / 1024).toFixed(1) })}</span>
       </div>
 
       <div style="display:flex;gap:6px;margin-top:10px">
-        <button class="btn ghost" style="flex:1" disabled=${busy} onClick=${runPreview}>
-          <span class="g">⊕</span><span>${t("semantic.preview")}</span>
-        </button>
+        <button class="btn ghost" style="flex:1" disabled=${busy} onClick=${runPreview}><span class="g">⊕</span><span>${t("semantic.preview")}</span></button>
         <button class="btn primary" style="flex:1" disabled=${busy} onClick=${save}>${t("common.save")}</button>
       </div>
 
@@ -659,26 +1002,24 @@ function ExcludesPreview({ preview }: { preview: PreviewData }) {
   ].filter((k) => (buckets[k] || 0) > 0);
   return html`
     <div class="excludes-preview">
-      <div class="summary">
-        ${t("semantic.previewSummary", { included: preview.filesIncluded, skipped: totalSkipped })}
-      </div>
+      <div class="summary">${t("semantic.previewSummary", { included: preview.filesIncluded, skipped: totalSkipped })}</div>
       ${
         reasons.length === 0
           ? html`<div style="color:var(--fg-3)">${t("semantic.nothingSkipped")}</div>`
           : reasons.map(
               (r) => html`
-                <details>
-                  <summary><strong>${r}: ${buckets[r]}</strong></summary>
-                  <ul>
-                    ${(samples[r] || []).map((p) => html`<li><code>${p}</code></li>`)}
-                    ${
-                      (buckets[r] || 0) > (samples[r] || []).length
-                        ? html`<li style="color:var(--fg-3)">…${(buckets[r] || 0) - (samples[r] || []).length} more</li>`
-                        : null
-                    }
-                  </ul>
-                </details>
-              `,
+              <details>
+                <summary><strong>${r}: ${buckets[r]}</strong></summary>
+                <ul>
+                  ${(samples[r] || []).map((p) => html`<li><code>${p}</code></li>`)}
+                  ${
+                    (buckets[r] || 0) > (samples[r] || []).length
+                      ? html`<li style="color:var(--fg-3)">…${(buckets[r] || 0) - (samples[r] || []).length} more</li>`
+                      : null
+                  }
+                </ul>
+              </details>
+            `,
             )
       }
       ${
@@ -723,14 +1064,11 @@ function ChipFormRow({
   };
   return html`
     <div class="form-row">
-      <span class="lbl">
-        ${label}
-        ${sub ? html`<span style="color:var(--fg-3);font-weight:400;text-transform:none;letter-spacing:0"> · ${sub}</span>` : null}
-      </span>
+      <span class="lbl">${label}${sub ? html`<span style="color:var(--fg-3);font-weight:400;text-transform:none;letter-spacing:0"> · ${sub}</span>` : null}</span>
       <div style="display:flex;flex-wrap:wrap;gap:4px">
         ${value.map(
           (e) => html`
-            <span class="chip-f">
+            <span class="chip-f static">
               <span>${e}</span>
               <span class="x" style="cursor:pointer" onClick=${() => remove(e)} title="remove">×</span>
             </span>
@@ -758,30 +1096,38 @@ function ChipFormRow({
 function SemanticJobView({ job, running }: { job: SemanticJob; running: boolean }) {
   useLang();
   const phaseLabel =
-    ({
-      scan: t("semantic.phaseScan"),
-      embed: t("semantic.phaseEmbed"),
-      write: t("semantic.phaseWrite"),
-      done: t("semantic.phaseDone"),
-      error: t("semantic.phaseError"),
-    } as Record<string, string>)[job.phase] ?? job.phase;
+    (
+      {
+        setup: t("semantic.phaseSetup"),
+        scan: t("semantic.phaseScan"),
+        embed: t("semantic.phaseEmbed"),
+        write: t("semantic.phaseWrite"),
+        done: t("semantic.phaseDone"),
+        error: t("semantic.phaseError"),
+        cancelled: t("semantic.phaseCancelled"),
+      } as Record<string, string>
+    )[job.phase] ?? job.phase;
   const total = job.chunksTotal ?? 0;
   const doneN = job.chunksDone ?? 0;
   const ratio = total > 0 ? Math.min(1, doneN / total) : 0;
-  const elapsed = ((Date.now() - job.startedAt) / 1000).toFixed(1);
+  const elapsedBase = job.finishedAt ?? Date.now();
+  const elapsedSeconds = (elapsedBase - job.startedAt) / 1000;
+  const elapsed = elapsedSeconds < 0.1 ? "<0.1s" : `${elapsedSeconds.toFixed(1)}s`;
+  const phaseSummary =
+    job.phase === "error" && job.lastPhase === "setup"
+      ? t("semantic.setupFailed")
+      : phaseLabel;
 
   return html`
     <div class="kv">
       <div><span class="kv-key">phase</span>
-        <span class=${`pill ${job.phase === "error" ? "pill-err" : running ? "pill-active" : "pill-dim"}`}>${phaseLabel}</span>
-        ${job.aborted ? html`<span class="pill warn" style="margin-left: 6px;">${t("semantic.stopping")}</span>` : null}
-        <span style="color:var(--fg-3);margin-left:8px">${elapsed}s</span>
+        <span class=${`pill ${job.phase === "error" ? "pill-err" : job.phase === "cancelled" ? "warn" : running ? "pill-active" : "pill-dim"}`}>${phaseSummary}</span>
+        ${job.aborted && running ? html`<span class="pill warn" style="margin-left: 6px;">${t("semantic.stopping")}</span>` : null}
+        <span style="color:var(--fg-3);margin-left:8px">${elapsed}</span>
       </div>
       ${
         job.filesScanned !== null && job.filesScanned !== undefined
-          ? html`<div><span class="kv-key">${t("semantic.files")}</span>${t("semantic.scanned", { count: job.filesScanned })}${
-              job.filesChanged != null ? ` · ${t("semantic.changed", { count: job.filesChanged })}` : ""
-            }${job.filesSkipped ? ` · ${t("semantic.skipped", { count: job.filesSkipped })}` : ""}</div>`
+          ? html`<div><span class="kv-key">${t("semantic.files")}</span>${t("semantic.scanned", { count: job.filesScanned })}${job.filesChanged != null ? ` · ${t("semantic.changed", { count: job.filesChanged })}` : ""}${job.filesSkipped ? ` · ${t("semantic.skipped", { count: job.filesSkipped })}` : ""}</div>`
           : null
       }
       ${
@@ -796,23 +1142,13 @@ function SemanticJobView({ job, running }: { job: SemanticJob; running: boolean
           `
           : null
       }
-      ${
-        job.error
-          ? html`<div><span class="kv-key">${t("semantic.phaseError")}</span><span class="err">${job.error}</span></div>`
-          : null
-      }
+      ${job.error ? html`<div><span class="kv-key">${t("semantic.phaseError")}</span><span class="err">${job.error}</span></div>` : null}
       ${
         job.result
-          ? html`<div><span class="kv-key">${t("semantic.result")}</span>${t("semantic.added", { count: job.result.chunksAdded })} · ${t("semantic.removed", { count: job.result.chunksRemoved })}${
-              job.result.chunksSkipped ? ` · ${t("semantic.failed", { count: job.result.chunksSkipped })}` : ""
-            } · ${(job.result.durationMs / 1000).toFixed(1)}s</div>`
-          : null
-      }
-      ${
-        job.result?.skipBuckets
-          ? html`<${SkipBucketsView} buckets=${job.result.skipBuckets} />`
+          ? html`<div><span class="kv-key">${t("semantic.result")}</span>${t("semantic.added", { count: job.result.chunksAdded })} · ${t("semantic.removed", { count: job.result.chunksRemoved })}${job.result.chunksSkipped ? ` · ${t("semantic.failed", { count: job.result.chunksSkipped })}` : ""} · ${(job.result.durationMs / 1000).toFixed(1)}s</div>`
           : null
       }
+      ${job.result?.skipBuckets ? html`<${SkipBucketsView} buckets=${job.result.skipBuckets} />` : null}
     </div>
   `;
 }
@@ -836,3 +1172,13 @@ function SkipBucketsView({ buckets }: { buckets: Record<string, number> }) {
     .map(([k, label]) => `${label}: ${buckets[k]}`);
   return html`<div><span class="kv-key">${t("semantic.skipped")}</span>${t("semantic.skippedFiles", { total, details: parts.join(", ") })}</div>`;
 }
+
+function isActiveSemanticPhase(phase: string | undefined): boolean {
+  return phase === "setup" || phase === "scan" || phase === "embed" || phase === "write";
+}
+
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  if (value === null || typeof value !== "object" || Array.isArray(value)) return false;
+  const proto = Object.getPrototypeOf(value);
+  return proto === Object.prototype || proto === null;
+}

dashboard/src/panels/sessions.ts

@@ -15,6 +15,8 @@ interface SessionEntry {
 
 interface SessionsData {
   sessions?: SessionEntry[];
+  currentSession?: string | null;
+  canSwitch?: boolean;
 }
 
 interface OpenSession {
@@ -25,10 +27,12 @@ interface OpenSession {
 
 export function SessionsPanel() {
   useLang();
-  const { data, error, loading } = usePoll<SessionsData>("/sessions", 5000);
+  const { data, error, loading, refresh } = usePoll<SessionsData>("/sessions", 5000);
   const [open, setOpen] = useState<OpenSession | null>(null);
   const [openLoading, setOpenLoading] = useState(false);
   const [filter, setFilter] = useState("");
+  const [busy, setBusy] = useState<string | null>(null);
+  const [actionError, setActionError] = useState<string | null>(null);
 
   const view = useCallback(async (name: string) => {
     setOpen({ name, messages: null });
@@ -43,13 +47,62 @@ export function SessionsPanel() {
     }
   }, []);
 
+  const newSession = useCallback(async () => {
+    setBusy("new");
+    setActionError(null);
+    try {
+      await api("/sessions/new", { method: "POST" });
+      setOpen(null);
+      await refresh();
+    } catch (err) {
+      setActionError((err as Error).message);
+    } finally {
+      setBusy(null);
+    }
+  }, [refresh]);
+
+  const switchTo = useCallback(
+    async (name: string) => {
+      setBusy(`switch:${name}`);
+      setActionError(null);
+      try {
+        await api(`/sessions/${encodeURIComponent(name)}/switch`, { method: "POST" });
+        setOpen(null);
+        await refresh();
+      } catch (err) {
+        setActionError((err as Error).message);
+      } finally {
+        setBusy(null);
+      }
+    },
+    [refresh],
+  );
+
+  const remove = useCallback(
+    async (name: string) => {
+      if (!confirm(t("sessions.deleteConfirm", { name }))) return;
+      setBusy(`delete:${name}`);
+      setActionError(null);
+      try {
+        await api(`/sessions/${encodeURIComponent(name)}`, { method: "DELETE" });
+        if (open?.name === name) setOpen(null);
+        await refresh();
+      } catch (err) {
+        setActionError((err as Error).message);
+      } finally {
+        setBusy(null);
+      }
+    },
+    [open, refresh],
+  );
+
   if (loading && !data)
     return html`<div class="card" style="color:var(--fg-3)">${t("sessions.loading")}</div>`;
-  if (error) return html`<div class="card accent-err">${t("common.loadingFailed", { name: "sessions", error: error.message })}</div>`;
+  if (error)
+    return html`<div class="card accent-err">${t("common.loadingFailed", { name: "sessions", error: error.message })}</div>`;
   const sessions = data?.sessions ?? [];
-
-  if (sessions.length === 0)
-    return html`<div class="card" style="color:var(--fg-3)">${t("sessions.noSessions")}</div>`;
+  const currentSession = data?.currentSession ?? null;
+  const canSwitch = data?.canSwitch ?? false;
 
   const filtered = filter.trim()
     ? sessions.filter((s) => s.name.toLowerCase().includes(filter.toLowerCase()))
@@ -58,7 +111,7 @@ export function SessionsPanel() {
   return html`
     <div class="sessions-grid">
       <div class="sessions-list">
-        <div class="ssl-h">
+        <div class="ssl-h" style="display:flex;gap:6px">
           <input
             type="text"
             placeholder=${t("sessions.filterPlaceholder")}
@@ -66,27 +119,54 @@ export function SessionsPanel() {
             onInput=${(e: Event) => setFilter((e.target as HTMLInputElement).value)}
             style="flex:1"
           />
+          <button
+            class="btn primary"
+            disabled=${!canSwitch || busy === "new"}
+            title=${canSwitch ? t("sessions.newHint") : t("sessions.attachRequired")}
+            onClick=${newSession}
+          >
+            ${busy === "new" ? t("common.loading") : `+ ${t("sessions.newBtn")}`}
+          </button>
         </div>
+        ${
+          !canSwitch
+            ? html`<div style="padding:0 12px 6px;font-size:11.5px;color:var(--fg-3)">${t("sessions.attachRequired")}</div>`
+            : null
+        }
+        ${
+          actionError
+            ? html`<div class="card accent-err" style="margin:0 12px 8px;padding:6px 10px;font-size:12px">${actionError}</div>`
+            : null
+        }
         <div class="chips" style="padding:0 12px 8px">
-          <span class="chip-f active">${t("common.all")} <span class="ct">${sessions.length}</span></span>
-        </div>
-        <div class="ssl-rows">
-          ${filtered.map(
-            (s) => html`
-              <div
-                class=${`ssl-row ${open?.name === s.name ? "sel" : ""}`}
-                onClick=${() => view(s.name)}
-              >
-                <span class="name">${s.name}</span>
-                <span class="meta">
-                  <span><span class="v">${fmtNum(s.messageCount)}</span> ${t("sessions.msgs")}</span>
-                  <span><span class="v">${fmtBytes(s.size)}</span></span>
-                  <span>${fmtRelativeTime(s.mtime)}</span>
-                </span>
-              </div>
-            `,
-          )}
+          <span class="chip-f static active">${t("common.all")} <span class="ct">${sessions.length}</span></span>
+          ${currentSession ? html`<span class="chip-f static">${t("sessions.activeChip")} <span class="ct">${currentSession}</span></span>` : null}
         </div>
+        ${
+          sessions.length === 0
+            ? html`<div class="ctx-empty" style="padding:24px 12px;color:var(--fg-3)">${t("sessions.noSessions")}</div>`
+            : html`<div class="ssl-rows">
+                ${filtered.map((s) => {
+                  const isCurrent = currentSession === s.name;
+                  return html`
+                    <div
+                      class=${`ssl-row ${open?.name === s.name ? "sel" : ""}`}
+                      onClick=${() => view(s.name)}
+                    >
+                      <span class="name">
+                        ${isCurrent ? html`<span class="pill ok" style="margin-right:6px">${t("sessions.activePill")}</span>` : null}
+                        ${s.name}
+                      </span>
+                      <span class="meta">
+                        <span><span class="v">${fmtNum(s.messageCount)}</span> ${t("sessions.msgs")}</span>
+                        <span><span class="v">${fmtBytes(s.size)}</span></span>
+                        <span>${fmtRelativeTime(s.mtime)}</span>
+                      </span>
+                    </div>
+                  `;
+                })}
+              </div>`
+        }
       </div>
 
       <div class="sessions-detail">
@@ -95,9 +175,14 @@ export function SessionsPanel() {
             ? html`<div style="color:var(--fg-3);font-size:13px;text-align:center;padding:60px 20px">
                 ${t("sessions.pickHint")}
               </div>`
-            : html`
+            : (() => {
+                const isCurrent = currentSession === open.name;
+                return html`
                 <div class="sessions-detail-h">
-                  <span class="name">${open.name}</span>
+                  <span class="name">
+                    ${isCurrent ? html`<span class="pill ok" style="margin-right:6px">${t("sessions.activePill")}</span>` : null}
+                    ${open.name}
+                  </span>
                   <span class="ws">
                     ${
                       open.messages
@@ -106,16 +191,32 @@ export function SessionsPanel() {
                     }
                   </span>
                   <span class="actions">
+                    ${
+                      canSwitch && !isCurrent
+                        ? html`<button class="btn primary" disabled=${busy === `switch:${open.name}`} onClick=${() => switchTo(open.name)}>${busy === `switch:${open.name}` ? t("common.loading") : t("sessions.switchBtn")}</button>`
+                        : null
+                    }
+                    <button
+                      class="btn"
+                      disabled=${isCurrent || busy === `delete:${open.name}`}
+                      title=${isCurrent ? t("sessions.cantDeleteActive") : t("sessions.deleteBtn")}
+                      style="border-color:var(--c-err);color:var(--c-err)"
+                      onClick=${() => remove(open.name)}
+                    >${busy === `delete:${open.name}` ? t("common.loading") : t("sessions.deleteBtn")}</button>
                     <button class="btn ghost" onClick=${() => setOpen(null)}>${t("common.back")}</button>
                   </span>
                 </div>
-                <div class="card accent-brand" style="margin-bottom:10px">
-                  <div class="card-h"><span class="title">${t("sessions.resumeTitle")}</span></div>
-                  <div class="card-b" style="font-size:12.5px;color:var(--fg-2)">
-                    ${t("sessions.resumeDesc")}
-                    <code class="mono" style="display:block;margin-top:8px;padding:8px 10px;background:var(--bg-input);border-radius:var(--r);color:var(--fg-0);font-size:12px;user-select:all">reasonix chat --session ${open.name}</code>
-                  </div>
-                </div>
+                ${
+                  !canSwitch
+                    ? html`<div class="card accent-brand" style="margin-bottom:10px">
+                        <div class="card-h"><span class="title">${t("sessions.resumeTitle")}</span></div>
+                        <div class="card-b" style="font-size:12.5px;color:var(--fg-2)">
+                          ${t("sessions.resumeDesc")}
+                          <code class="mono" style="display:block;margin-top:8px;padding:8px 10px;background:var(--bg-input);border-radius:var(--r);color:var(--fg-0);font-size:12px;user-select:all">reasonix chat --session ${open.name}</code>
+                        </div>
+                      </div>`
+                    : null
+                }
                 ${
                   openLoading
                     ? html`<div style="color:var(--fg-3)">${t("sessions.loadingTranscript")}</div>`
@@ -147,7 +248,8 @@ export function SessionsPanel() {
                           </div>`
                         : html`<div style="color:var(--fg-3)">${t("sessions.emptyTranscript")}</div>`
                 }
-              `
+              `;
+              })()
         }
       </div>
     </div>

dashboard/src/panels/settings.ts

@@ -1,7 +1,21 @@
-import { useCallback, useEffect, useState } from "preact/hooks";
-import { api } from "../lib/api.js";
-import { html } from "../lib/html.js";
+import { useCallback, useEffect, useRef, useState } from "preact/hooks";
 import { type DashboardLang, getLang, setLang, t, useLang } from "../i18n/index.js";
+import { api } from "../lib/api.js";
+import {
+  type BudgetState,
+  QUICK_CAPS_USD,
+  budgetTone,
+  bumpSuggestions,
+  deriveBudgetState,
+} from "../lib/budget.js";
+import { html } from "../lib/html.js";
+import {
+  INTERVAL_PRESETS_MS,
+  type IntervalUnit,
+  type LoopRunStatus,
+  formatRemaining,
+  parseCustomInterval,
+} from "../lib/loop-control.js";
 
 interface SettingsData {
   apiKey?: string | null;
@@ -11,6 +25,365 @@ interface SettingsData {
   search?: boolean;
   model?: string;
   editMode?: string;
+  proNext?: boolean;
+  budgetUsd?: number | null;
+  /** Cumulative session spend (USD); null when no session is attached. */
+  sessionSpendUsd?: number | null;
+  skillPaths?: string[];
+}
+
+function fmtUsd2(n: number): string {
+  return `$${n.toFixed(n < 1 ? 4 : 2)}`;
+}
+
+interface ModelPriceEntry {
+  inputCacheHit: number;
+  inputCacheMiss: number;
+  output: number;
+}
+
+interface ModelCatalog {
+  models: string[] | null;
+  current: string | null;
+  pricing: Record<string, ModelPriceEntry>;
+}
+
+function formatPricing(p: ModelPriceEntry | undefined): string | null {
+  if (!p) return null;
+  return t("settings.modelPricingLine", {
+    hit: p.inputCacheHit.toFixed(3),
+    miss: p.inputCacheMiss.toFixed(3),
+    out: p.output.toFixed(3),
+  });
+}
+
+function ModelRow({
+  current,
+  catalog,
+  saving,
+  onPick,
+}: {
+  current: string;
+  catalog: ModelCatalog | null;
+  saving: boolean;
+  onPick: (model: string) => void;
+}) {
+  const list = catalog?.models ?? null;
+  const ready = list && list.length > 0;
+  if (!ready) {
+    // Fallback: catalog hasn't loaded (or API failed). Read-only — same as before D-4.
+    return html`<code class="mono">${current ?? "—"}</code>`;
+  }
+  // Ensure the live model is selectable even if the catalog hasn't reported it
+  // yet (preset overrides, custom IDs).
+  const options = list.includes(current) ? list : [current, ...list];
+  const price = catalog?.pricing[current];
+  return html`
+    <span style="display:inline-flex;flex-direction:column;gap:4px">
+      <select
+        value=${current}
+        onChange=${(e: Event) => {
+          const next = (e.target as HTMLSelectElement).value;
+          if (next && next !== current) onPick(next);
+        }}
+        disabled=${saving}
+        style="font-family:var(--font-mono);min-width:200px"
+      >
+        ${options.map((m) => html`<option key=${m} value=${m}>${m}</option>`)}
+      </select>
+      ${
+        price
+          ? html`<span style="color:var(--fg-3);font-size:11px;font-family:var(--font-mono)">${formatPricing(price)}</span>`
+          : null
+      }
+    </span>
+  `;
+}
+
+function BudgetGauge({ state }: { state: BudgetState }) {
+  if (state.kind === "off") return null;
+  const tone = budgetTone(state);
+  const fill = Math.min(100, state.pct);
+  const valueColor =
+    tone === "err"
+      ? "color:var(--c-err)"
+      : tone === "warn"
+        ? "color:var(--c-warn)"
+        : "color:var(--fg-1)";
+  return html`
+    <div style="display:flex;flex-direction:column;gap:6px">
+      <div style="display:flex;justify-content:space-between;align-items:baseline;font-size:13px">
+        <span style=${valueColor}>
+          <strong style="font-family:var(--font-mono)">${fmtUsd2(state.spent)}</strong>
+          <span style="color:var(--fg-3)"> ${t("settings.budgetOf")} </span>
+          <strong style="font-family:var(--font-mono)">${fmtUsd2(state.cap)}</strong>
+        </span>
+        <span style=${`font-family:var(--font-mono);font-size:11px;${valueColor}`}>${state.pct.toFixed(1)}%</span>
+      </div>
+      <div class=${`progress ${tone}`}><div class="progress-fill" style=${`width:${fill}%`}></div></div>
+      <span style="color:var(--fg-3);font-size:11px">
+        ${
+          state.kind === "exhausted"
+            ? t("settings.budgetRefusing")
+            : state.kind === "warn"
+              ? t("settings.budgetWarnLine")
+              : t("settings.budgetIdleLine")
+        }
+      </span>
+    </div>
+  `;
+}
+
+interface BudgetSectionProps {
+  state: BudgetState;
+  saving: boolean;
+  onSetCap: (usd: number) => void;
+  onClear: () => void;
+}
+
+function BudgetSection({ state, saving, onSetCap, onClear }: BudgetSectionProps) {
+  const [custom, setCustom] = useState("");
+  const submitCustom = () => {
+    const n = Number.parseFloat(custom);
+    if (Number.isFinite(n) && n > 0) {
+      onSetCap(n);
+      setCustom("");
+    }
+  };
+
+  const quickButtons = (caps: ReadonlyArray<number>) =>
+    caps.map(
+      (c) => html`
+        <button
+          key=${c}
+          class="btn"
+          style="font-family:var(--font-mono)"
+          disabled=${saving}
+          onClick=${() => onSetCap(c)}
+        >$${c}</button>
+      `,
+    );
+
+  const customField = html`
+    <span style="display:inline-flex;align-items:center;gap:4px;margin-left:auto">
+      <span style="color:var(--fg-3);font-size:11px">${t("settings.budgetCustom")}</span>
+      <input
+        type="number"
+        min="0.01"
+        step="0.01"
+        value=${custom}
+        placeholder="0.00"
+        onInput=${(e: Event) => setCustom((e.target as HTMLInputElement).value)}
+        onKeyDown=${(e: KeyboardEvent) => {
+          if (e.key === "Enter") submitCustom();
+        }}
+        style="width:72px;font-family:var(--font-mono)"
+        disabled=${saving}
+      />
+      <button
+        class="btn primary"
+        disabled=${saving || !(Number.parseFloat(custom) > 0)}
+        onClick=${submitCustom}
+      >→</button>
+    </span>
+  `;
+
+  return html`
+    <div class="card" style="display:flex;flex-direction:column;gap:12px">
+      <${BudgetGauge} state=${state} />
+
+      ${
+        state.kind === "off"
+          ? html`
+              <div>
+                <div style="color:var(--fg-3);font-size:11px;margin-bottom:6px">${t("settings.budgetSetCap")}</div>
+                <div style="display:flex;gap:6px;align-items:center;flex-wrap:wrap">
+                  ${quickButtons(QUICK_CAPS_USD)}
+                  ${customField}
+                </div>
+              </div>
+            `
+          : state.kind === "warn" || state.kind === "exhausted"
+            ? html`
+                <div>
+                  <div style="color:var(--fg-3);font-size:11px;margin-bottom:6px">${t("settings.budgetBumpHint")}</div>
+                  <div style="display:flex;gap:6px;align-items:center;flex-wrap:wrap">
+                    ${bumpSuggestions(state.cap).map(
+                      (next) => html`
+                        <button
+                          key=${next}
+                          class="btn primary"
+                          style="font-family:var(--font-mono)"
+                          disabled=${saving}
+                          onClick=${() => onSetCap(next)}
+                        >→ $${next % 1 === 0 ? next : next.toFixed(2)}</button>
+                      `,
+                    )}
+                    ${customField}
+                  </div>
+                  <div style="margin-top:8px">
+                    <button class="btn" disabled=${saving} onClick=${onClear}>${t("settings.budgetClear")}</button>
+                  </div>
+                </div>
+              `
+            : html`
+                <div style="display:flex;gap:6px;align-items:center;flex-wrap:wrap">
+                  ${bumpSuggestions(state.cap).map(
+                    (next) => html`
+                      <button
+                        key=${next}
+                        class="btn"
+                        style="font-family:var(--font-mono)"
+                        disabled=${saving}
+                        onClick=${() => onSetCap(next)}
+                      >→ $${next % 1 === 0 ? next : next.toFixed(2)}</button>
+                    `,
+                  )}
+                  ${customField}
+                  <button
+                    class="btn"
+                    style="margin-left:8px"
+                    disabled=${saving}
+                    onClick=${onClear}
+                  >${t("settings.budgetClear")}</button>
+                </div>
+              `
+      }
+    </div>
+  `;
+}
+
+interface LoopSectionProps {
+  status: LoopRunStatus | null;
+  /** ms remaining until next fire — ticks down client-side between status polls. */
+  remainingMs: number;
+  /** Last-turn cost in USD; used as a hint for "each iteration costs ~". */
+  avgIterCostUsd: number | null;
+  busy: boolean;
+  onStart: (intervalMs: number, prompt: string) => void;
+  onStop: () => void;
+}
+
+function LoopSection({
+  status,
+  remainingMs,
+  avgIterCostUsd,
+  busy,
+  onStart,
+  onStop,
+}: LoopSectionProps) {
+  const [intervalMs, setIntervalMs] = useState<number>(INTERVAL_PRESETS_MS[1]!.ms);
+  const [prompt, setPrompt] = useState("");
+  const [customValue, setCustomValue] = useState("");
+  const [customUnit, setCustomUnit] = useState<IntervalUnit>("m");
+
+  if (status) {
+    return html`
+      <div class="card" style="display:flex;flex-direction:column;gap:10px">
+        <div style="display:flex;justify-content:space-between;align-items:baseline">
+          <span style="color:var(--c-warn);font-family:var(--font-mono);font-size:11px">⟳ ${t("settings.loopRunning")}</span>
+          <span style="color:var(--fg-3);font-size:11px">
+            ${t("settings.loopIter", { iter: status.iter })} · ${t("settings.loopFiresIn", { remaining: formatRemaining(remainingMs) })}
+          </span>
+        </div>
+        <div style="background:var(--bg-elev-2);border:1px solid var(--bd);border-radius:var(--r);padding:8px 10px;font-family:var(--font-mono);font-size:12px;color:var(--fg-1);white-space:pre-wrap;max-height:120px;overflow-y:auto">${status.prompt}</div>
+        <div>
+          <button class="btn danger" disabled=${busy} onClick=${onStop}>${t("settings.loopStop")}</button>
+        </div>
+      </div>
+    `;
+  }
+
+  const customMs = parseCustomInterval(customValue, customUnit);
+  const canStart = !busy && intervalMs > 0 && prompt.trim().length > 0;
+
+  return html`
+    <div class="card" style="display:flex;flex-direction:column;gap:10px">
+      <div style="color:var(--fg-3);font-size:11px">
+        ${t("settings.loopIdleHint")}
+        ${
+          typeof avgIterCostUsd === "number" && avgIterCostUsd > 0
+            ? html` ${t("settings.loopCostHint", { cost: `$${avgIterCostUsd.toFixed(4)}` })}`
+            : null
+        }
+      </div>
+      <div style="display:flex;flex-direction:column;gap:6px">
+        <span style="color:var(--fg-3);font-size:11px">${t("settings.loopInterval")}</span>
+        <div style="display:flex;gap:6px;align-items:center;flex-wrap:wrap">
+          ${INTERVAL_PRESETS_MS.map(
+            (p) => html`
+              <button
+                key=${p.ms}
+                class=${`btn ${intervalMs === p.ms && customValue === "" ? "primary" : ""}`}
+                style="font-family:var(--font-mono)"
+                disabled=${busy}
+                onClick=${() => {
+                  setIntervalMs(p.ms);
+                  setCustomValue("");
+                }}
+              >${p.label}</button>
+            `,
+          )}
+          <span style="display:inline-flex;align-items:center;gap:4px;margin-left:auto">
+            <span style="color:var(--fg-3);font-size:11px">${t("settings.loopCustom")}</span>
+            <input
+              type="number"
+              min="1"
+              step="1"
+              value=${customValue}
+              onInput=${(e: Event) => {
+                const raw = (e.target as HTMLInputElement).value;
+                setCustomValue(raw);
+                const ms = parseCustomInterval(raw, customUnit);
+                if (ms !== null) setIntervalMs(ms);
+              }}
+              style="width:64px;font-family:var(--font-mono)"
+              disabled=${busy}
+            />
+            <select
+              value=${customUnit}
+              onChange=${(e: Event) => {
+                const next = (e.target as HTMLSelectElement).value as IntervalUnit;
+                setCustomUnit(next);
+                if (customValue) {
+                  const ms = parseCustomInterval(customValue, next);
+                  if (ms !== null) setIntervalMs(ms);
+                }
+              }}
+              disabled=${busy}
+            >
+              <option value="s">s</option>
+              <option value="m">m</option>
+              <option value="h">h</option>
+            </select>
+          </span>
+        </div>
+        ${
+          customValue && customMs === null
+            ? html`<span style="color:var(--c-err);font-size:11px">${t("settings.loopRangeError")}</span>`
+            : null
+        }
+      </div>
+      <div style="display:flex;flex-direction:column;gap:6px">
+        <span style="color:var(--fg-3);font-size:11px">${t("settings.loopPrompt")}</span>
+        <textarea
+          rows="3"
+          placeholder=${t("settings.loopPromptPlaceholder")}
+          value=${prompt}
+          onInput=${(e: Event) => setPrompt((e.target as HTMLTextAreaElement).value)}
+          style="width:100%;font-family:var(--font-mono);resize:vertical"
+          disabled=${busy}
+        ></textarea>
+      </div>
+      <div>
+        <button
+          class="btn primary"
+          disabled=${!canStart}
+          onClick=${() => onStart(intervalMs, prompt.trim())}
+        >${t("settings.loopStart")}</button>
+      </div>
+    </div>
+  `;
 }
 
 export function SettingsPanel() {
@@ -20,6 +393,13 @@ export function SettingsPanel() {
   const [saving, setSaving] = useState(false);
   const [saved, setSaved] = useState<string | null>(null);
   const [draft, setDraft] = useState<Partial<SettingsData>>({});
+  const [catalog, setCatalog] = useState<ModelCatalog | null>(null);
+  const [loopStatus, setLoopStatus] = useState<LoopRunStatus | null>(null);
+  const [loopAvgCost, setLoopAvgCost] = useState<number | null>(null);
+  const [loopBusy, setLoopBusy] = useState(false);
+  /** Wall-clock time of the last status sync — used to interpolate the countdown. */
+  const lastStatusSyncRef = useRef<number>(0);
+  const [now, setNow] = useState<number>(() => Date.now());
 
   const load = useCallback(async () => {
     try {
@@ -33,6 +413,73 @@ export function SettingsPanel() {
   useEffect(() => {
     load();
   }, [load]);
+  useEffect(() => {
+    api<ModelCatalog>("/models")
+      .then(setCatalog)
+      .catch(() => undefined);
+  }, []);
+
+  const refreshLoop = useCallback(async () => {
+    try {
+      const r = await api<{ status: LoopRunStatus | null }>("/loop/status");
+      setLoopStatus(r.status);
+      lastStatusSyncRef.current = Date.now();
+    } catch {
+      /* ignore — status is best-effort */
+    }
+    try {
+      const r = await api<{ stats?: { lastTurnCostUsd?: number } }>("/overview");
+      setLoopAvgCost(r.stats?.lastTurnCostUsd ?? null);
+    } catch {
+      /* ignore */
+    }
+  }, []);
+  useEffect(() => {
+    let cancelled = false;
+    refreshLoop();
+    const id = setInterval(() => {
+      if (!cancelled) refreshLoop();
+    }, 5_000);
+    return () => {
+      cancelled = true;
+      clearInterval(id);
+    };
+  }, [refreshLoop]);
+  useEffect(() => {
+    if (!loopStatus) return;
+    const id = setInterval(() => setNow(Date.now()), 1_000);
+    return () => clearInterval(id);
+  }, [loopStatus]);
+
+  const remainingMs = loopStatus
+    ? Math.max(0, loopStatus.nextFireMs - (now - lastStatusSyncRef.current))
+    : 0;
+
+  const startLoop = useCallback(
+    async (intervalMs: number, prompt: string) => {
+      setLoopBusy(true);
+      try {
+        await api("/loop/start", { method: "POST", body: { intervalMs, prompt } });
+        await refreshLoop();
+      } catch (err) {
+        setError((err as Error).message);
+      } finally {
+        setLoopBusy(false);
+      }
+    },
+    [refreshLoop],
+  );
+  const stopLoop = useCallback(async () => {
+    setLoopBusy(true);
+    try {
+      await api("/loop/stop", { method: "POST" });
+      await refreshLoop();
+    } catch (err) {
+      setError((err as Error).message);
+    } finally {
+      setLoopBusy(false);
+    }
+  }, [refreshLoop]);
 
   const save = useCallback(
     async (fields: Partial<SettingsData>) => {
@@ -52,6 +499,11 @@ export function SettingsPanel() {
     [load],
   );
 
+  const skillPathsDraft = draft.skillPaths ?? data?.skillPaths ?? [];
+  const skillPathsText = Array.isArray(skillPathsDraft)
+    ? skillPathsDraft.join(", ")
+    : String(skillPathsDraft ?? "");
+
   if (!data && !error)
     return html`<div class="card" style="color:var(--fg-3)">${t("settings.loading")}</div>`;
   if (error && !data) return html`<div class="card accent-err">${error}</div>`;
@@ -61,11 +513,7 @@ export function SettingsPanel() {
   const sectionH3 = (text: string) => html`
     <h3 style="margin:18px 0 8px;font-family:var(--font-mono);font-size:11px;color:var(--fg-3);text-transform:uppercase;letter-spacing:.1em">${text}</h3>
   `;
-  const fieldRow = (
-    label: string,
-    control: unknown,
-    note?: string,
-  ) => html`
+  const fieldRow = (label: string, control: unknown, note?: string) => html`
     <div style="display:flex;align-items:center;gap:10px;padding:6px 0">
       <span style="flex:0 0 110px;font-family:var(--font-mono);font-size:11.5px;color:var(--fg-3)">${label}</span>
       <div style="flex:1;display:flex;align-items:center;gap:8px">${control}</div>
@@ -77,12 +525,8 @@ export function SettingsPanel() {
 
   return html`
     <div style="max-width:760px;display:flex;flex-direction:column;gap:6px">
-      ${
-        saved ? html`<div><span class="pill ok">${saved}</span></div>` : null
-      }
-      ${
-        error ? html`<div class="card accent-err">${error}</div>` : null
-      }
+      ${saved ? html`<div><span class="pill ok">${saved}</span></div>` : null}
+      ${error ? html`<div class="card accent-err">${error}</div>` : null}
 
       ${sectionH3(t("settings.sectionLanguage"))}
       <div class="card">
@@ -189,11 +633,79 @@ export function SettingsPanel() {
         )}
       </div>
 
+      ${sectionH3(t("settings.sectionSkills"))}
+      <div class="card">
+        ${fieldRow(
+          t("settings.skillPaths"),
+          html`
+            <input
+              type="text"
+              value=${skillPathsText}
+              placeholder=${t("settings.skillPathsPlaceholder")}
+              onInput=${(e: Event) =>
+                setDraft({
+                  ...draft,
+                  skillPaths: (e.target as HTMLInputElement).value
+                    .split(",")
+                    .map((s) => s.trim())
+                    .filter(Boolean),
+                })}
+              style="flex:1;font-family:var(--font-mono)"
+            />
+            <button
+              class="btn"
+              disabled=${saving || skillPathsText === (v.skillPaths ?? []).join(", ")}
+              onClick=${() => save({ skillPaths: draft.skillPaths ?? [] })}
+            >${t("common.save")}</button>
+          `,
+          t("settings.skillPathsNote"),
+        )}
+      </div>
+
+      ${sectionH3(t("settings.sectionCompute"))}
+      <div class="card">
+        ${fieldRow(
+          t("settings.proNext"),
+          html`
+            <button
+              class=${`btn ${v.proNext ? "primary" : ""}`}
+              onClick=${() => save({ proNext: !v.proNext })}
+              disabled=${saving}
+            >${v.proNext ? t("settings.proArmed") : t("settings.proArm")}</button>
+          `,
+          t("settings.proNextNote"),
+        )}
+      </div>
+
+      ${sectionH3(t("settings.sectionBudget"))}
+      <${BudgetSection}
+        state=${deriveBudgetState(v.budgetUsd, v.sessionSpendUsd)}
+        saving=${saving}
+        onSetCap=${(usd: number) => save({ budgetUsd: usd })}
+        onClear=${() => save({ budgetUsd: null })}
+      />
+
+      ${sectionH3(t("settings.sectionLoop"))}
+      <${LoopSection}
+        status=${loopStatus}
+        remainingMs=${remainingMs}
+        avgIterCostUsd=${loopAvgCost}
+        busy=${loopBusy}
+        onStart=${startLoop}
+        onStop=${stopLoop}
+      />
+
       ${sectionH3(t("settings.sectionRuntime"))}
       <div class="card">
         ${fieldRow(
           t("settings.activeModel"),
-          html`<code class="mono">${v.model ?? "—"}</code>`,
+          html`<${ModelRow}
+            current=${v.model ?? "—"}
+            catalog=${catalog}
+            saving=${saving}
+            onPick=${(m: string) => save({ model: m })}
+          />`,
+          t("settings.appliesNextTurn"),
         )}
         ${fieldRow(
           t("settings.editMode"),

dashboard/src/panels/skills.ts

@@ -1,7 +1,7 @@
 import { useCallback, useEffect, useState } from "preact/hooks";
+import { t, useLang } from "../i18n/index.js";
 import { api } from "../lib/api.js";
 import { html } from "../lib/html.js";
-import { t, useLang } from "../i18n/index.js";
 
 interface SkillEntry {
   name: string;
@@ -9,14 +9,22 @@ interface SkillEntry {
   runs7d?: number;
 }
 
+interface SkillPathInfo {
+  dir: string;
+  scope: "custom";
+  status: string;
+  priority: number;
+}
+
 interface SkillsData {
-  paths: { project?: string };
+  paths: { project?: string; custom?: SkillPathInfo[] };
   project: SkillEntry[];
+  custom: SkillEntry[];
   global: SkillEntry[];
   builtin: SkillEntry[];
 }
 
-type Scope = "project" | "global" | "builtin";
+type Scope = "project" | "custom" | "global" | "builtin";
 
 export function SkillsPanel() {
   useLang();
@@ -29,6 +37,7 @@ export function SkillsPanel() {
   const [newName, setNewName] = useState("");
   const [newScope, setNewScope] = useState<"global" | "project">("global");
   const [filter, setFilter] = useState("");
+  const [scopeFilter, setScopeFilter] = useState<"all" | Scope>("all");
 
   const load = useCallback(async () => {
     try {
@@ -43,7 +52,7 @@ export function SkillsPanel() {
 
   const openSkill = useCallback(async (scope: Scope, name: string) => {
     setOpen({ scope, name });
-    if (scope === "builtin") {
+    if (scope === "builtin" || scope === "custom") {
       setBody("");
       return;
     }
@@ -117,16 +126,19 @@ export function SkillsPanel() {
 
   const allWith = [
     ...data.project.map((s) => ({ scope: "project" as Scope, ...s })),
+    ...data.custom.map((s) => ({ scope: "custom" as Scope, ...s })),
     ...data.global.map((s) => ({ scope: "global" as Scope, ...s })),
     ...data.builtin.map((s) => ({ scope: "builtin" as Scope, ...s })),
   ];
+  const scopeFiltered =
+    scopeFilter === "all" ? allWith : allWith.filter((s) => s.scope === scopeFilter);
   const filtered = filter.trim()
-    ? allWith.filter(
+    ? scopeFiltered.filter(
         (s) =>
           s.name.toLowerCase().includes(filter.toLowerCase()) ||
           (s.description ?? "").toLowerCase().includes(filter.toLowerCase()),
       )
-    : allWith;
+    : scopeFiltered;
 
   return html`
     <div class="sessions-grid">
@@ -141,10 +153,26 @@ export function SkillsPanel() {
           />
         </div>
         <div class="chips" style="padding:0 12px 8px">
-          <span class="chip-f active">${t("common.all")} <span class="ct">${allWith.length}</span></span>
-          <span class="chip-f">${t("skills.project")} <span class="ct">${data.project.length}</span></span>
-          <span class="chip-f">${t("skills.global")} <span class="ct">${data.global.length}</span></span>
-          <span class="chip-f">${t("skills.builtin")} <span class="ct">${data.builtin.length}</span></span>
+          <span
+            class=${`chip-f ${scopeFilter === "all" ? "active" : ""}`}
+            onClick=${() => setScopeFilter("all")}
+          >${t("common.all")} <span class="ct">${allWith.length}</span></span>
+          <span
+            class=${`chip-f ${scopeFilter === "project" ? "active" : ""}`}
+            onClick=${() => setScopeFilter("project")}
+          >${t("skills.project")} <span class="ct">${data.project.length}</span></span>
+          <span
+            class=${`chip-f ${scopeFilter === "custom" ? "active" : ""}`}
+            onClick=${() => setScopeFilter("custom")}
+          >${t("skills.custom")} <span class="ct">${data.custom.length}</span></span>
+          <span
+            class=${`chip-f ${scopeFilter === "global" ? "active" : ""}`}
+            onClick=${() => setScopeFilter("global")}
+          >${t("skills.global")} <span class="ct">${data.global.length}</span></span>
+          <span
+            class=${`chip-f ${scopeFilter === "builtin" ? "active" : ""}`}
+            onClick=${() => setScopeFilter("builtin")}
+          >${t("skills.builtin")} <span class="ct">${data.builtin.length}</span></span>
         </div>
 
         <div style="padding:0 12px 8px;display:flex;gap:6px;flex-wrap:wrap">
@@ -177,6 +205,7 @@ export function SkillsPanel() {
                 <span class="name">
                   ${s.name}
                   ${s.scope === "builtin" ? html`<span class="pill">${t("skills.builtin")}</span>` : null}
+                  ${s.scope === "custom" ? html`<span class="pill">${t("skills.custom")}</span>` : null}
                 </span>
                 <span class="preview">${s.description ?? t("skills.noDescription")}</span>
                 <span class="meta">
@@ -218,7 +247,26 @@ export function SkillsPanel() {
                     </div>
                   `;
                 })()
-              : html`
+              : open.scope === "custom"
+                ? (() => {
+                    const custom = data.custom.find((b) => b.name === open.name);
+                    return html`
+                      <div class="sessions-detail-h">
+                        <span class="name">${open.scope}/${open.name}</span>
+                        <span class="ws"><span class="pill">${t("skills.readOnlyCustom")}</span></span>
+                        <span class="actions">
+                          <button class="btn ghost" onClick=${() => setOpen(null)}>${t("common.back")}</button>
+                        </span>
+                      </div>
+                      <div style="color:var(--fg-2);font-size:13px;line-height:1.6">
+                        ${custom?.description ?? t("skills.noDescription")}
+                      </div>
+                      <div style="margin-top:14px;color:var(--fg-3);font-size:11.5px;font-family:var(--font-mono)">
+                        ${data.paths.custom?.map((p) => html`<div>${p.status} · ${p.dir}</div>`)}
+                      </div>
+                    `;
+                  })()
+                : html`
                 <div class="sessions-detail-h">
                   <span class="name">${open.scope}/${open.name}</span>
                   <span class="ws">${body.length.toLocaleString()} chars</span>

dashboard/src/panels/system.ts

@@ -1,6 +1,7 @@
 import { fmtBytes, fmtNum } from "../lib/format.js";
 import { html } from "../lib/html.js";
 import { usePoll } from "../lib/use-poll.js";
+import { compareVersions } from "../lib/version.js";
 import { t, useLang } from "../i18n/index.js";
 
 interface HealthData {
@@ -22,7 +23,7 @@ export function SystemPanel() {
   if (error) return html`<div class="card accent-err">${t("common.loadingFailed", { name: "health", error: error.message })}</div>`;
   if (!data) return null;
   const h = data;
-  const upToDate = h.latestVersion ? h.latestVersion === h.version : null;
+  const upToDate = h.latestVersion ? compareVersions(h.version, h.latestVersion) >= 0 : null;
 
   return html`
     <div style="display:flex;flex-direction:column;gap:14px">

dashboard/src/panels/tools.ts

@@ -21,6 +21,12 @@ interface ToolsError {
   body?: { error?: string };
 }
 
+function toolDesc(name: string, fallback: string): string {
+  const key = `tools.desc.${name}`;
+  const translated = t(key);
+  return translated === key ? fallback : translated;
+}
+
 export function ToolsPanel() {
   useLang();
   const { data, error, loading } = usePoll<ToolsData>("/tools", 4000);
@@ -37,8 +43,8 @@ export function ToolsPanel() {
   return html`
     <div style="display:flex;flex-direction:column;gap:14px">
       <div class="chips">
-        <span class="chip-f active">${t("common.all")} <span class="ct">${d.total}</span></span>
-        ${d.planMode ? html`<span class="chip-f" style="border-color:var(--c-warn);color:var(--c-warn)">${t("tools.planMode")}</span>` : null}
+        <span class="chip-f static active">${t("common.all")} <span class="ct">${d.total}</span></span>
+        ${d.planMode ? html`<span class="chip-f static" style="border-color:var(--c-warn);color:var(--c-warn)">${t("tools.planMode")}</span>` : null}
       </div>
 
       ${
@@ -65,7 +71,7 @@ export function ToolsPanel() {
                             : html`<span class="pill acc">${t("tools.write")}</span>`}
                           ${tool.flattened ? html` <span class="pill">${t("tools.flat")}</span>` : null}
                         </td>
-                        <td class="dim">${tool.description ?? ""}</td>
+                        <td class="dim">${toolDesc(tool.name, tool.description ?? "")}</td>
                       </tr>
                     `,
                   )}

dashboard/src/panels/usage.ts

@@ -36,6 +36,7 @@ interface UsageDay {
 function UsageChart({ days }: { days: UsageDay[] }) {
   const containerRef = useRef<HTMLDivElement>(null);
   const plotRef = useRef<UPlotInstance | null>(null);
+  useLang();
 
   useEffect(() => {
     let cancelled = false;
@@ -64,7 +65,7 @@ function UsageChart({ days }: { days: UsageDay[] }) {
           { stroke: "#94a3b8", grid: { stroke: "rgba(148, 163, 184, 0.08)" } },
           {
             scale: "y",
-            label: "USD",
+            label: t("usage.axisUsd"),
             stroke: "#94a3b8",
             grid: { stroke: "rgba(148, 163, 184, 0.08)" },
             values: (_u: unknown, v: number[]) => v.map((n) => `$${n.toFixed(4)}`),
@@ -72,17 +73,22 @@ function UsageChart({ days }: { days: UsageDay[] }) {
           {
             scale: "turns",
             side: 1,
-            label: "turns",
+            label: t("usage.axisTurns"),
             stroke: "#94a3b8",
             grid: { show: false },
           },
         ],
         series: [
-          {},
-          { label: "cost", stroke: "#67e8f9", width: 2, fill: "rgba(103, 232, 249, 0.10)" },
-          { label: "cache saved", stroke: "#5eead4", width: 2, dash: [4, 4] },
+          { label: t("usage.axisTime") },
           {
-            label: "turns",
+            label: t("usage.seriesCost"),
+            stroke: "#67e8f9",
+            width: 2,
+            fill: "rgba(103, 232, 249, 0.10)",
+          },
+          { label: t("usage.seriesCacheSaved"), stroke: "#5eead4", width: 2, dash: [4, 4] },
+          {
+            label: t("usage.seriesTurns"),
             stroke: "#c4b5fd",
             scale: "turns",
             width: 1.5,
@@ -174,8 +180,8 @@ export function UsagePanel() {
   return html`
     <div style="display:flex;flex-direction:column;gap:6px">
       <div class="chips">
-        <span class="chip-f active">${t("usage.records", { count: u.recordCount.toLocaleString() })}</span>
-        <span class="chip-f">${u.logSize}</span>
+        <span class="chip-f static active">${t("usage.records", { count: u.recordCount.toLocaleString() })}</span>
+        <span class="chip-f static">${u.logSize}</span>
       </div>
 
       ${
@@ -203,13 +209,13 @@ export function UsagePanel() {
                 <table class="tbl">
                   <thead>
                     <tr>
-                      <th></th>
-                      <th>${t("usage.colTurns")}</th>
-                      <th>${t("usage.colCacheHit")}</th>
-                      <th>${t("usage.colCost")}</th>
-                      <th>${t("usage.colCacheSaved")}</th>
-                      <th>${t("usage.colVsClaude")}</th>
-                      <th>${t("usage.colSaved")}</th>
+                      <th>${t("usage.colWindow")}</th>
+                      <th class="num">${t("usage.colTurns")}</th>
+                      <th class="num">${t("usage.colCacheHit")}</th>
+                      <th class="num">${t("usage.colCost")}</th>
+                      <th class="num">${t("usage.colCacheSaved")}</th>
+                      <th class="num">${t("usage.colVsClaude")}</th>
+                      <th class="num">${t("usage.colSaved")}</th>
                     </tr>
                   </thead>
                   <tbody>

desktop/SIGNING.md

@@ -0,0 +1,187 @@
+# Reasonix Desktop — code signing & notarization
+
+Walkthrough for shipping a signed Reasonix Desktop bundle.
+
+The release workflow at `.github/workflows/release.yml` reads everything
+below from repository **Secrets** — nothing in this repo holds keys.
+Without these secrets set the workflow still builds, but installers come
+out unsigned (Windows shows SmartScreen warnings; macOS marks the app
+"damaged" until the user right-clicks → Open).
+
+## Tauri updater signing (all platforms)
+
+Tauri's updater verifies bundle artifacts against a public key embedded
+in the app. Generate once and commit the **public** half to
+`tauri.conf.json`.
+
+```bash
+cd desktop
+npx @tauri-apps/cli signer generate -w ~/.tauri/reasonix.key
+```
+
+Outputs:
+- `~/.tauri/reasonix.key` — the **private** key. Never commit. Add a
+  passphrase when prompted.
+- `~/.tauri/reasonix.key.pub` — paste into `tauri.conf.json` under
+  `plugins.updater.pubkey`, replacing `REPLACE_ME_RUN_tauri_signer_generate`.
+
+Set repo secrets:
+- `TAURI_SIGNING_PRIVATE_KEY` — full contents of `~/.tauri/reasonix.key`
+- `TAURI_SIGNING_PRIVATE_KEY_PASSWORD` — the passphrase
+
+The workflow exports both as env vars; `tauri-action` picks them up and
+signs the per-platform update bundle (`*.tar.gz.sig`, `*.zip.sig`,
+`*.msi.zip.sig`, …) automatically.
+
+## Windows — Authenticode
+
+You need a **code signing certificate** from a CA Microsoft trusts
+(DigiCert, Sectigo, SSL.com, …). EV certs avoid SmartScreen reputation
+ramp; OV certs work but warn until enough installs build trust.
+
+### One-time: export the cert as PFX
+
+The CA either ships a `.pfx` directly or a `.cer` + private key. If you
+get the latter, combine with `openssl`:
+
+```bash
+openssl pkcs12 -export \
+  -inkey reasonix.key \
+  -in reasonix.cer \
+  -out reasonix.pfx \
+  -name "Reasonix Code Signing"
+```
+
+Set a strong export password — needed below.
+
+### Wire into the release workflow
+
+Tauri v2 reads three env vars on Windows:
+
+| Secret | What it is |
+|---|---|
+| `WINDOWS_CERTIFICATE` | base64-encoded contents of `reasonix.pfx` |
+| `WINDOWS_CERTIFICATE_PASSWORD` | the PFX export password |
+
+Encode the cert before adding the secret:
+
+```bash
+base64 -w0 reasonix.pfx > reasonix.pfx.b64
+```
+
+Then add a step to the matrix' Windows job that imports the cert and
+points Tauri at it. The simplest approach uses the [Azure trusted
+signing action] or the older `@tauri-apps/action`'s built-in
+Authenticode path — set the secrets and `tauri-action` will pick them
+up via `tauri-plugin-windows-installer`.
+
+For the workflow already in this repo, add to the env block of the
+`Build Tauri bundle` step:
+
+```yaml
+WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
+WINDOWS_CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_CERTIFICATE_PASSWORD }}
+```
+
+`tauri-action` v0 detects these and signs both the `.msi` and the
+`.exe` produced by NSIS.
+
+### Verify locally before pushing the tag
+
+```powershell
+signtool verify /pa /v Reasonix_0.40.0_x64-setup.exe
+```
+
+Output should include `Successfully verified` and the certificate's
+common name.
+
+[Azure trusted signing action]: https://github.com/Azure/trusted-signing-action
+
+## macOS — Developer ID + notarization
+
+Two separate signatures are required for a non-warning install:
+
+1. **Code signing** with a Developer ID Application certificate — proves
+   the bundle came from a paid Apple Developer account.
+2. **Notarization** — Apple's automated malware scan, returns a ticket
+   that gets stapled into the `.dmg` / `.app`.
+
+### One-time: certificate
+
+Enroll in the [Apple Developer Program] ($99/yr). In Xcode → Settings →
+Accounts → Manage Certificates, create a `Developer ID Application`
+cert. Export from Keychain as a `.p12` with a passphrase.
+
+```bash
+base64 -i ReasonixDeveloperID.p12 -o cert.p12.b64
+```
+
+### One-time: app-specific password for notarytool
+
+Notarization uses the Apple ID, not the cert. At
+<https://appleid.apple.com> → Sign-In and Security → App-Specific
+Passwords, generate one labelled "reasonix notarytool". Save it — Apple
+only shows it once.
+
+### Repository secrets
+
+| Secret | What it is |
+|---|---|
+| `APPLE_CERTIFICATE` | base64 of the `.p12` |
+| `APPLE_CERTIFICATE_PASSWORD` | the `.p12` passphrase |
+| `APPLE_SIGNING_IDENTITY` | the Common Name, e.g. `Developer ID Application: Your Name (TEAMID)` |
+| `APPLE_ID` | your Apple ID email |
+| `APPLE_PASSWORD` | the app-specific password from the previous step |
+| `APPLE_TEAM_ID` | 10-character team identifier, visible in Apple Developer → Membership |
+
+The release workflow already passes all six to `tauri-action`. Once
+they're set, builds for both `macos-13` (Intel) and `macos-14` (Apple
+Silicon) produce a signed + notarized `.dmg`.
+
+### Verify locally
+
+After downloading the artifact:
+
+```bash
+spctl -a -t open --context context:primary-signature -vvv Reasonix_0.40.0_aarch64.dmg
+# expected: source=Notarized Developer ID
+```
+
+```bash
+codesign --verify --deep --strict --verbose=2 /Applications/Reasonix.app
+# expected: valid on disk + satisfies its Designated Requirement
+```
+
+[Apple Developer Program]: https://developer.apple.com/programs/
+
+## Linux
+
+No signing required — `.deb` and `.AppImage` ship plain. If the project
+ever publishes a Flatpak or Snap, the respective store handles signing
+on upload.
+
+## Updater pubkey rotation
+
+Rotating the updater key invalidates every previously installed
+client's ability to verify updates. Avoid unless the private key
+leaked. If it must happen:
+
+1. Generate a new key pair (`tauri signer generate`).
+2. Ship one transitional release signed with the **old** key whose
+   notes tell users to download fresh installers manually.
+3. Replace `tauri.conf.json#plugins.updater.pubkey` in the next release.
+4. Update `TAURI_SIGNING_PRIVATE_KEY` in repo secrets.
+
+## Troubleshooting
+
+- **"errSecInternalComponent" on macOS runners** — Apple's `notarytool`
+  needs the keychain unlocked. `tauri-action` handles this when the six
+  Apple secrets are present; if you've inlined custom steps, add a
+  keychain-unlock step before signing.
+- **"The signature of the application is invalid"** on Windows after
+  an update — almost always means the updater's `pubkey` in
+  `tauri.conf.json` doesn't match the private key used by the workflow.
+  Confirm both halves come from the same `signer generate` run.
+- **`xcrun: error: unable to find utility "altool"`** — runner is on
+  Xcode older than 13. Pin `xcode-select` or upgrade the runner image;
+  `notarytool` (the replacement) is what Tauri v2 uses.

desktop/icons/source.svg

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg id="_图层_1" data-name="图层 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1254 1254">
+  <defs>
+    <style>
+      .cls-1 {
+        fill: #fff;
+      }
+
+      .cls-2 {
+        fill: #0153e5;
+      }
+    </style>
+  </defs>
+  <rect class="cls-1" x="6.03" y="6.03" width="1241.94" height="1241.94" rx="212.47" ry="212.47"/>
+  <g>
+    <path class="cls-2" d="M365.68,979.74l-25.49-38.96c-6.04-.37-11.31-.37-17.43.02l-.32,38.89-25.45-.07.17-116.94,41.97-.09c8.63-.02,17.06-.36,25.04,2.45,16,4.84,25.56,18.48,25.9,34.98s-8.99,30.24-24.61,36.54l29.2,42.77-28.97.42ZM349.06,918.57c10.12-1.14,15.92-8.96,15.42-18.1-.45-8.24-7.17-15.04-16.43-15.27-8.58-.22-16.84-.16-25.42.11l.2,33.63c9-.35,17.44.61,26.23-.38Z"/>
+    <path class="cls-2" d="M575.08,979.32c-7.43,1.03-14.99.28-22.9.38l-.74-9.77c-7.73,8.95-17.92,13.2-29.47,11.93-14.76-1.61-26.67-11.64-31.95-25.58-4.4-11.6-4.2-24.54.48-36.11,5.71-14.09,18.45-24.15,33.47-25.24,11.06-.8,20.62,2.91,27.6,11.13l.68-9.23,22.6-.13.22,82.61ZM552.67,938.39c0-11.9-9.65-21.55-21.55-21.55s-21.55,9.65-21.55,21.55,9.65,21.55,21.55,21.55,21.55-9.65,21.55-21.55Z"/>
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+    <circle class="cls-2" cx="640.36" cy="538.21" r="3.47"/>
+    <path class="cls-2" d="M504.6,517.71c-7.75.94-12.41,6.5-11.66,14.8,5.25,57.86,58.62,105.22,118.44,93.8,12.73-2.43,24.33-7.49,33.74-16.99-20.35-17.53-30.27-35.39-47.01-52.99-23.95-25.18-58.04-42.91-93.5-38.62Z"/>
+  </g>
+</svg>

desktop/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Reasonix</title>
+    <link rel="stylesheet" href="/src/styles.css" />
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>

desktop/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "reasonix-desktop",
+  "private": true,
+  "version": "0.48.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "preview": "vite preview",
+    "tauri": "tauri",
+    "bundle:node": "node scripts/bundle-node.mjs"
+  },
+  "dependencies": {
+    "@fontsource/geist": "^5.2.8",
+    "@fontsource/geist-mono": "^5.2.7",
+    "@fontsource/inter": "^5.2.8",
+    "@tauri-apps/api": "^2.1.1",
+    "@tauri-apps/plugin-dialog": "^2.7.1",
+    "@tauri-apps/plugin-opener": "^2.0.0",
+    "@tauri-apps/plugin-process": "^2.0.0",
+    "@tauri-apps/plugin-updater": "^2.0.0",
+    "katex": "^0.16.47",
+    "lucide-react": "^0.469.0",
+    "prism-react-renderer": "^2.4.1",
+    "react": "^19.2.0",
+    "react-dom": "^19.2.0",
+    "react-markdown": "^9.0.1",
+    "react-virtuoso": "^4.12.5",
+    "rehype-katex": "^7.0.1",
+    "remark-breaks": "^4.0.0",
+    "remark-gfm": "^4.0.0",
+    "remark-math": "^6.0.0"
+  },
+  "devDependencies": {
+    "@tauri-apps/cli": "^2.1.0",
+    "@types/react": "^19.2.0",
+    "@types/react-dom": "^19.2.0",
+    "@vitejs/plugin-react": "^4.3.4",
+    "typescript": "^5.6.3",
+    "vite": "^5.4.10"
+  }
+}

desktop/scripts/bundle-node.mjs

@@ -0,0 +1,150 @@
+// Pulls Node 22 from nodejs.org into desktop/src-tauri/binaries/.
+// Mac always produces a universal Mach-O so Intel + Apple Silicon ship from one .dmg (issue #1234).
+import { execSync } from "node:child_process";
+import { chmodSync, createWriteStream, existsSync, mkdirSync, renameSync, rmSync, statSync } from "node:fs";
+import https from "node:https";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const NODE_VERSION = "22.13.0";
+
+const here = dirname(fileURLToPath(import.meta.url));
+const binDir = join(here, "..", "src-tauri", "binaries");
+
+const PLAT = process.platform;
+const ARCH_RAW = process.arch;
+const HOST_ARCH = ARCH_RAW === "arm64" ? "arm64" : ARCH_RAW === "x64" ? "x64" : null;
+
+if (!HOST_ARCH || !["win32", "darwin", "linux"].includes(PLAT)) {
+  console.error(`Unsupported host: ${PLAT}/${ARCH_RAW}. Supported: win32 / darwin / linux × x64 / arm64.`);
+  process.exit(1);
+}
+
+const isWin = PLAT === "win32";
+const targetExe = join(binDir, isWin ? "node.exe" : "node");
+
+if (existsSync(targetExe) && statSync(targetExe).size > 1024 * 1024) {
+  if (PLAT === "darwin") {
+    try {
+      const archs = execSync(`lipo -archs "${targetExe}"`, { encoding: "utf8" }).trim();
+      if (archs.includes("arm64") && archs.includes("x86_64")) {
+        console.log(`${targetExe} already universal (${archs}) — delete to refetch`);
+        process.exit(0);
+      }
+      console.log(`${targetExe} present but not universal (${archs}) — rebuilding`);
+      rmSync(targetExe);
+    } catch {
+      console.log(`${targetExe} present but not verifiable as Mach-O — rebuilding`);
+      rmSync(targetExe);
+    }
+  } else {
+    const mb = (statSync(targetExe).size / 1024 / 1024).toFixed(1);
+    console.log(`${targetExe} already present (${mb} MB) — delete to refetch`);
+    process.exit(0);
+  }
+}
+
+mkdirSync(binDir, { recursive: true });
+
+function follow(url, dest, redirects = 5) {
+  return new Promise((resolve, reject) => {
+    const req = https.get(url, (res) => {
+      const status = res.statusCode ?? 0;
+      if ((status === 301 || status === 302 || status === 307 || status === 308) && res.headers.location && redirects > 0) {
+        res.resume();
+        follow(new URL(res.headers.location, url).toString(), dest, redirects - 1).then(resolve, reject);
+        return;
+      }
+      if (status !== 200) {
+        reject(new Error(`HTTP ${status} fetching ${url}`));
+        return;
+      }
+      const file = createWriteStream(dest);
+      const total = Number.parseInt(res.headers["content-length"] ?? "0", 10);
+      let got = 0;
+      let last = 0;
+      res.on("data", (chunk) => {
+        got += chunk.length;
+        if (total && Date.now() - last > 250) {
+          process.stdout.write(`\r  ${(got / 1024 / 1024).toFixed(1)} / ${(total / 1024 / 1024).toFixed(1)} MB`);
+          last = Date.now();
+        }
+      });
+      res.pipe(file);
+      file.on("finish", () => file.close((err) => (err ? reject(err) : resolve())));
+      file.on("error", reject);
+    });
+    req.on("error", reject);
+  });
+}
+
+async function fetchAndExtract(arch) {
+  const triple =
+    PLAT === "win32" ? `win-${arch}` : PLAT === "darwin" ? `darwin-${arch}` : `linux-${arch}`;
+  const archiveExt = PLAT === "win32" ? "zip" : PLAT === "darwin" ? "tar.gz" : "tar.xz";
+  const archiveBase = `node-v${NODE_VERSION}-${triple}`;
+  const archiveFile = `${archiveBase}.${archiveExt}`;
+  const url = `https://nodejs.org/dist/v${NODE_VERSION}/${archiveFile}`;
+  const archivePath = join(binDir, archiveFile);
+  const extractDir = join(binDir, `_extract_${arch}`);
+
+  console.log(`Downloading ${archiveFile} ...`);
+  await follow(url, archivePath);
+  process.stdout.write("\n");
+
+  rmSync(extractDir, { recursive: true, force: true });
+  mkdirSync(extractDir, { recursive: true });
+
+  console.log(`Extracting ${arch} ...`);
+  if (isWin) {
+    execSync(
+      `powershell -NoProfile -Command "Expand-Archive -Force -Path '${archivePath}' -DestinationPath '${extractDir}'"`,
+      { stdio: "inherit" },
+    );
+  } else {
+    execSync(`tar -xf "${archivePath}" -C "${extractDir}"`, { stdio: "inherit" });
+  }
+
+  const inner = isWin
+    ? join(extractDir, archiveBase, "node.exe")
+    : join(extractDir, archiveBase, "bin", "node");
+  if (!existsSync(inner)) {
+    console.error(`Extracted binary not found at expected path: ${inner}`);
+    process.exit(1);
+  }
+
+  rmSync(archivePath);
+  return { inner, extractDir };
+}
+
+if (PLAT === "darwin") {
+  const [arm, x64] = await Promise.all([fetchAndExtract("arm64"), fetchAndExtract("x64")]);
+
+  console.log("Creating universal binary with lipo ...");
+  if (existsSync(targetExe)) rmSync(targetExe);
+  execSync(`lipo -create "${arm.inner}" "${x64.inner}" -output "${targetExe}"`, { stdio: "inherit" });
+  chmodSync(targetExe, 0o755);
+
+  rmSync(arm.extractDir, { recursive: true, force: true });
+  rmSync(x64.extractDir, { recursive: true, force: true });
+
+  const archs = execSync(`lipo -archs "${targetExe}"`, { encoding: "utf8" }).trim();
+  const mb = (statSync(targetExe).size / 1024 / 1024).toFixed(1);
+  console.log(`Done: ${targetExe} (${mb} MB, archs: ${archs})`);
+} else {
+  const { inner, extractDir } = await fetchAndExtract(HOST_ARCH);
+
+  if (existsSync(targetExe)) rmSync(targetExe);
+  renameSync(inner, targetExe);
+  if (!isWin) {
+    try {
+      chmodSync(targetExe, 0o755);
+    } catch {
+      /* ignore */
+    }
+  }
+  rmSync(extractDir, { recursive: true, force: true });
+
+  const mb = (statSync(targetExe).size / 1024 / 1024).toFixed(1);
+  console.log(`Done: ${targetExe} (${mb} MB)`);
+}

desktop/src-tauri/Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "reasonix-desktop"
+version = "0.48.0"
+edition = "2021"
+publish = false
+
+[build-dependencies]
+tauri-build = { version = "2", features = [] }
+
+[dependencies]
+tauri = { version = "2", features = ["devtools", "macos-private-api"] }
+tauri-plugin-updater = "2"
+tauri-plugin-process = "2"
+tauri-plugin-opener = "2"
+tauri-plugin-dialog = "2"
+tauri-plugin-window-state = "2"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+parking_lot = "0.12"
+anyhow = "1"
+which = "7"
+
+[features]
+custom-protocol = ["tauri/custom-protocol"]
+
+[profile.release]
+strip = true
+lto = true
+codegen-units = 1
+panic = "abort"

desktop/src-tauri/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    tauri_build::build();
+}

desktop/src-tauri/capabilities/default.json

@@ -0,0 +1,33 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "default app capability",
+  "windows": ["main", "Reasonix"],
+  "permissions": [
+    "core:default",
+    "core:event:default",
+    "core:window:default",
+    "core:window:allow-minimize",
+    "core:window:allow-maximize",
+    "core:window:allow-unmaximize",
+    "core:window:allow-toggle-maximize",
+    "core:window:allow-close",
+    "core:window:allow-start-dragging",
+    "updater:default",
+    "process:allow-restart",
+    "dialog:allow-open",
+    "dialog:allow-save",
+    {
+      "identifier": "opener:allow-open-url",
+      "allow": [{ "url": "https://*" }, { "url": "http://*" }]
+    },
+    {
+      "identifier": "opener:allow-open-path",
+      "allow": [{ "path": "**" }]
+    },
+    {
+      "identifier": "opener:allow-reveal-item-in-dir",
+      "allow": [{ "path": "**" }]
+    }
+  ]
+}

desktop/src-tauri/icons/android/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+  <background android:drawable="@color/ic_launcher_background"/>
+</adaptive-icon>