refactor(core): decouple state domains from config

Signed-off-by: Major Hayden <major@mhtx.net>

.github/workflows/generate.yml

@@ -1,52 +0,0 @@
-name: generate
-
-on:
-  push:
-    branches:
-      - dev
-      - v2
-
-jobs:
-  generate:
-    runs-on: blacksmith-4vcpu-ubuntu-2404
-    permissions:
-      contents: write
-      pull-requests: write
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
-
-      - name: Setup Bun
-        uses: ./.github/actions/setup-bun
-
-      - name: Setup git committer
-        id: committer
-        uses: ./.github/actions/setup-git-committer
-        with:
-          opencode-app-id: ${{ vars.OPENCODE_APP_ID }}
-          opencode-app-secret: ${{ secrets.OPENCODE_APP_SECRET }}
-
-      - name: Generate
-        run: ./script/generate.ts
-
-      - name: Commit and push
-        run: |
-          if [ -z "$(git status --porcelain)" ]; then
-            echo "No changes to commit"
-            exit 0
-          fi
-          git add -A
-          git commit -m "chore: generate" --allow-empty
-          git push origin HEAD:${{ github.ref_name }} --no-verify
-          # if ! git push origin HEAD:${{ github.event.pull_request.head.ref || github.ref_name }} --no-verify; then
-          #   echo ""
-          #   echo "============================================"
-          #   echo "Failed to push generated code."
-          #   echo "Please run locally and push:"
-          #   echo ""
-          #   echo "  ./script/generate.ts"
-          #   echo "  git add -A && git commit -m \"chore: generate\" && git push"
-          #   echo ""
-          #   echo "============================================"
-          #   exit 1
-          # fi

.github/workflows/publish.yml

@@ -196,7 +196,7 @@ jobs:
 
   build-node-cli:
     needs: version
-    if: github.repository == 'anomalyco/opencode'
+    if: github.repository == 'anomalyco/opencode' && false # Temporarily disabled
     strategy:
       fail-fast: false
       matrix:
@@ -594,6 +594,7 @@ jobs:
           path: packages/cli/dist
 
       - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        if: needs.build-node-cli.result == 'success'
         with:
           pattern: opencode-node-cli-*
           path: packages/cli/dist/node

.github/workflows/test.yml

@@ -80,6 +80,8 @@ jobs:
         if: always()
         timeout-minutes: 10
         working-directory: packages/cli
+        env:
+          NODE_OPTIONS: ${{ runner.os == 'Windows' && '--max-old-space-size=4096' || '' }}
         run: |
           bun run script/build.ts --single --skip-install
           bun run script/service-smoke.ts
@@ -94,6 +96,8 @@ jobs:
         if: always()
         timeout-minutes: 15
         working-directory: packages/cli
+        env:
+          NODE_OPTIONS: ${{ runner.os == 'Windows' && '--max-old-space-size=4096' || '' }}
         run: |
           bun run script/build-node.ts --single --skip-install --outdir=dist/node
           bun run script/service-smoke.ts --node

.opencode/skills/opencode-dev/SKILL.md

@@ -0,0 +1,204 @@
+---
+name: opencode-dev
+description: Use when interactively running, debugging, or verifying opencode's own V2 CLI/TUI or server during development in this repo — starting the dev TUI, driving it with termctrl, comparing V2 against the legacy TUI, hitting the V2 server/API directly, reading log files, or attaching Bun's inspector.
+---
+
+# Debugging opencode itself
+
+Workflow for interactively exercising the V2 CLI/TUI and server while developing in this repo. All commands below run from `packages/cli` unless noted otherwise.
+
+## Server/client model
+
+opencode V2 is a client/server system, not a single monolithic process:
+
+- **Server process** runs the Effect HTTP API (`packages/server`) and owns all domain state: sessions, database, plugins, permissions, Location services. It's started by the `serve` command (`packages/cli/src/commands/handlers/serve.ts`).
+- **TUI process** is a separate process that runs no application logic itself — it's an HTTP/SSE client of the server via the generated SDK (`createOpencodeClient` / `sdk.client.v2`).
+- **Discovery**: CLI processes find the shared server through a JSON registration file at `~/.local/state/opencode/service.json` (or `service-local.json` for the local/dev channel) containing `{id, version, url, pid}`. A separate password file under `~/.config/opencode/service.json` provides HTTP Basic auth. Before reusing a registration, the client calls `GET /health` to confirm the server is alive, authenticated, and version-compatible.
+- **Sharing**: because of this registration/health-check dance, many concurrent `opencode`/TUI invocations converge on one shared background daemon rather than each spawning their own. If no compatible healthy daemon is found, a new one is spawned detached (`serve --service`) and registers itself.
+- **`bun dev service start|status|stop|restart`** manages this shared background daemon's lifecycle directly — useful when you need to force a fresh server, confirm one is running, or kill a stuck one.
+- **Standalone mode** (`--standalone`) opts a single invocation out of the shared daemon: it spawns a private one-off `serve --stdio --port 0` child tied to that invocation's lifetime, with its own random password. Use this to isolate a debugging session from your other running opencode sessions.
+- Every log line is tagged `role=server` or `role=cli` and a per-process `run=<id>`, so you can distinguish server-side and client-side activity in one shared log file (see "Logs" below) even when both roles are interleaved from concurrent processes.
+
+## Starting the dev TUI
+
+- This package is the V2 CLI adapter. Run its `dev` script when testing the TUI; do not use the repository-root `bun dev`, which launches the legacy `packages/opencode` CLI.
+- Run commands from `packages/cli`. Use `bun dev` for most debugging so the TUI starts with a private V2 server.
+
+## Interactive debugging with termctrl
+
+- Use `termctrl` for interactive checks instead of starting the TUI as a blocking foreground process. It provides a real PTY, handles OpenTUI's host handshake, and can save reviewable screenshots.
+- Use a dedicated session name and do not reuse or kill an unrelated session.
+
+```bash
+termctrl start opencode-v2-dev --host opentui --cols 112 --rows 34 -- bun dev
+termctrl wait opencode-v2-dev "Ask anything" --timeout 20000
+termctrl show opencode-v2-dev
+```
+
+- Wait for visible text before interacting instead of relying on fixed sleeps. Use the text expected from the screen under test, such as `Ask anything` or `Connect a provider`.
+- Drive the running TUI with `termctrl send`. Prefix typed input with `text:` and send control keys separately so the interaction matches real terminal input.
+
+```bash
+termctrl send opencode-v2-dev 'text:example prompt' enter
+termctrl send opencode-v2-dev ctrl-c
+```
+
+- Use `termctrl show` after each meaningful interaction and inspect the full visible screen for rendering errors, stale state, error toasts, and unexpected exits.
+- Save PNG evidence for every user-visible bug and fix. Do not save text captures; inspect the rendered PNG. Write temporary captures outside the repository unless the artifact is intended to be committed.
+
+```bash
+termctrl save opencode-v2-dev --format png --out /tmp/opencode/v2-tui.png
+```
+
+- For resize-sensitive changes, resize the viewport, wait for the expected content, and capture the screen again:
+
+```bash
+termctrl resize opencode-v2-dev --cols 100 --rows 30
+termctrl show opencode-v2-dev
+```
+
+- Source changes may require restarting the process. Use `termctrl restart opencode-v2-dev` rather than assuming the running TUI reloaded the change.
+- To exercise background-service behavior, use `bun dev service start`, `bun dev service status`, and `bun dev service stop`.
+- Always clean up the Terminal Control session when the check is complete:
+
+```bash
+termctrl stop opencode-v2-dev
+```
+
+## Comparing V2 against the legacy TUI
+
+Run both versions in separate Terminal Control sessions and save PNG-only captures at equivalent states:
+
+```bash
+# From packages/cli: local V2 TUI
+termctrl start opencode-v2-dev --host opentui --cols 112 --rows 34 -- bun dev
+
+# Released legacy TUI behavior reference
+termctrl start opencode-legacy --host opentui --cols 112 --rows 34 -- bunx opencode-ai@latest
+
+termctrl save opencode-v2-dev --format png --out /tmp/opencode/v2.png
+termctrl save opencode-legacy --format png --out /tmp/opencode/legacy.png
+```
+
+- Use the same viewport and send equivalent inputs to both sessions before comparing screenshots. The released CLI is a behavioral reference, not a source of V2 API design; keep the local implementation on V2 endpoints.
+- Stop both sessions after comparison: `termctrl stop opencode-v2-dev` and `termctrl stop opencode-legacy`.
+
+## Server/API debugging
+
+- Use `bun dev api --help` from `packages/cli` to inspect the API debugging command. It sends one request to the V2 server using the same daemon discovery/auth path as the CLI.
+- Use `bun dev api` to introspect the server-side data backing the TUI. This is useful when debugging UI bugs: compare what the screen renders with the raw session, message, event, agent, or health data returned by the API to determine whether the bug is in the server state, the client data layer, or the TUI rendering.
+- `bun dev api` accepts either an OpenAPI operation ID or a raw HTTP method plus path:
+
+```bash
+bun dev api get /health
+bun dev api get /openapi.json
+bun dev api <operationId> --param key=value
+```
+
+- Pass JSON request bodies with `--data`/`-d`; the command sets `content-type: application/json` automatically unless you provide a header. Add extra headers with `--header`/`-H name:value`.
+- If no compatible background server is registered, `bun dev api` starts one through the daemon service. Use `bun dev service status`, `bun dev service restart`, and `bun dev service stop` when you need explicit lifecycle control.
+- Prefer raw method/path calls for quick server debugging and operation IDs when exercising documented OpenAPI routes with path or query parameters.
+
+## Auditing installed `opencode2` sessions
+
+Installed next-channel sessions normally use `~/.local/share/opencode/opencode-next.db` and `~/.local/share/opencode/log/opencode.log`; `OPENCODE_DB` can override the database. Before calling `opencode2 api`, inspect `~/.local/state/opencode/service.json` because the command may start a daemon when none is healthy.
+
+For a supplied `ses_...` ID, compare three sources:
+
+- `opencode2 api get /api/session/active` and the Session/message endpoints for live server state.
+- The database's ordered `event` rows for durable history.
+- `packages/tui/src/context/data.tsx` and the relevant route for client projection and rendering.
+
+Locate an uncertain database without modifying it:
+
+```bash
+SESSION=ses_...
+for db in ~/.local/share/opencode/*.db; do
+  sqlite3 "file:$db?mode=ro" "select 1 from session where id='$SESSION' limit 1" 2>/dev/null | grep -q 1 && printf '%s\n' "$db"
+done
+```
+
+## Logs
+
+- Log files live under `~/.local/share/opencode/log/`. In a local/dev checkout the active file is `opencode-local.log`; `opencode.log` is used for non-local (released) channel installs. Both are append-only, shared across every CLI and server process on the machine.
+- Each line is structured `key=value` text: `timestamp`, `level`, `run=<id>` (per-process run ID), `message`, and a `role=cli` or `role=server` tag. Use `run=` to isolate one process's activity and `role=` to separate client-side from server-side log lines, since a shared daemon interleaves many processes' output in one file.
+- Tail the live file while reproducing an issue instead of guessing from stale output:
+
+```bash
+tail -f ~/.local/share/opencode/log/opencode-local.log
+```
+
+- Filter to one run or role when the file is noisy:
+
+```bash
+grep 'run=8fc3b1d5' ~/.local/share/opencode/log/opencode-local.log
+grep 'role=server' ~/.local/share/opencode/log/opencode-local.log
+```
+
+- `OPENCODE_LOG_LEVEL` controls verbosity (default `INFO`); set it before starting `bun dev` or `serve` to get `DEBUG` output for a specific repro.
+- `OPENCODE_PRINT_LOGS=1` additionally tees log output to stderr of the process that emitted it, which is useful when a process fails before you'd think to check the shared log file.
+- `termctrl logs <session>` surfaces stdout/stderr for a Terminal Control session specifically (e.g. inspector output or startup failures before the TUI renderer starts) — use the log file above for anything emitted by a separate server/daemon process instead.
+
+## Heap snapshots
+
+The CLI installs a `SIGUSR1` listener on non-Windows processes in `packages/cli/src/heap.ts`. Use it to capture the installed `opencode2` server without restarting it or attaching an inspector.
+
+1. Find the processes and inspect their roles and memory:
+
+```bash
+pgrep -a -f 'opencode2\.exe|opencode2'
+ps -o pid,ppid,rss,vsz,lstart,etime,cmd -p <pid>,<pid>
+```
+
+2. Signal the process whose heap needs investigation. For shared-service memory, target the `opencode2.exe serve --service` child, not the short wrapper/TUI process:
+
+```bash
+kill -USR1 <server-pid>
+```
+
+3. Wait for `heap snapshot written` in the channel's log before opening the file. Snapshots are written to the same log directory as `heap-<pid>-<timestamp>.heapsnapshot`; writing a large heap can take several seconds and the file is incomplete until the completion message appears:
+
+```bash
+grep 'heap snapshot' ~/.local/share/opencode/log/opencode.log | tail
+find ~/.local/share/opencode/log -maxdepth 1 -name 'heap-<server-pid>-*.heapsnapshot' -printf '%T@ %s %p\n' | sort -nr | head
+```
+
+Use `opencode-local.log` instead for a local/dev channel process. The log's `path=` field is authoritative.
+
+4. Analyze the snapshot with Chrome DevTools, a V8 heap snapshot parser, or a temporary tool installed outside the repository. Start with the largest retained objects, dominators, object counts grouped by constructor/name, and retainer paths back to GC roots. Relate suspicious names and paths back to the source tree rather than treating large shallow allocations as leaks.
+
+For command-line analysis, install tooling under `/tmp/opencode`, not in the repository. For example, MemLab can rank dominators and trace a reported heap object ID back to a GC root:
+
+```bash
+npm install --prefix /tmp/opencode/heap-analysis @memlab/cli
+/tmp/opencode/heap-analysis/node_modules/.bin/memlab analyze object-size --snapshot <snapshot>
+/tmp/opencode/heap-analysis/node_modules/.bin/memlab analyze shape --snapshot <snapshot>
+/tmp/opencode/heap-analysis/node_modules/.bin/memlab trace --snapshot <snapshot> --node-id=<id>
+```
+
+A single snapshot explains what retains memory at one point in time, but does not by itself prove a leak. For leak confirmation, capture a baseline, perform a controlled repeated workload, allow idle cleanup/GC when possible, capture another snapshot, and compare growth and retainer paths. Also compare snapshot heap size with process RSS: a large difference can indicate native allocations, database mappings, allocator fragmentation, or other memory outside the JavaScript heap.
+
+```bash
+cat /proc/<pid>/smaps_rollup
+pmap -x <pid> | sort -k3 -nr | head -25
+```
+
+Heap serialization itself can temporarily increase RSS and allocator high-water marks, so record `ps`/`smaps_rollup` both before and after capture. Large anonymous mappings with a comparatively small live heap require native-allocation or allocator investigation; they cannot be explained from JavaScript retainer paths alone.
+
+## Debugger
+
+- To debug the V2 CLI or TUI with Bun's inspector, launch the CLI entrypoint through Terminal Control with an inspector URL, then attach a debugger to that URL:
+
+```bash
+termctrl start opencode-v2-debug --host opentui --cols 112 --rows 34 -- \
+  bun run --inspect=ws://localhost:6499/ src/index.ts
+```
+
+- Use `--inspect-wait` or `--inspect-brk` when execution must pause until a debugger attaches.
+- Use `termctrl logs opencode-v2-debug` for inspector output or startup failures emitted before the TUI renderer starts. Use `termctrl show` for the visible full-screen TUI.
+
+## Verification
+
+- Run `bun typecheck` from `packages/cli` after CLI adapter changes.
+- Run `bun typecheck` and `bun test` from `packages/tui` after shared TUI changes. Do not run tests from the repository root.
+- Treat automated checks and Terminal Control smoke tests as complementary. For user-visible changes, verify initial render, the changed interaction, Ctrl-C exit behavior, and save a screenshot of the corrected state.

bun.lock

@@ -28,7 +28,6 @@
         "semver": "^7.6.0",
         "sst": "catalog:",
         "turbo": "2.10.2",
-        "vitest": "4.1.10",
       },
     },
     "packages/ai": {
@@ -63,7 +62,6 @@
         "@dnd-kit/solid": "0.5.0",
         "@kobalte/core": "catalog:",
         "@opencode-ai/client": "workspace:*",
-        "@opencode-ai/core": "workspace:*",
         "@opencode-ai/schema": "workspace:*",
         "@opencode-ai/session-ui": "workspace:*",
         "@opencode-ai/ui": "workspace:*",
@@ -81,7 +79,6 @@
         "@solidjs/router": "catalog:",
         "@tanstack/solid-query": "5.91.4",
         "@tanstack/solid-virtual": "catalog:",
-        "@thisbeyond/solid-dnd": "0.7.5",
         "diff": "catalog:",
         "effect": "catalog:",
         "fuzzysort": "catalog:",
@@ -122,6 +119,7 @@
       },
       "dependencies": {
         "@agentclientprotocol/sdk": "1.2.1",
+        "@clack/prompts": "1.0.0-alpha.1",
         "@effect/platform-node": "catalog:",
         "@opencode-ai/client": "workspace:*",
         "@opencode-ai/plugin": "workspace:*",
@@ -189,12 +187,15 @@
         "@types/bun": "catalog:",
         "@typescript/native-preview": "catalog:",
         "effect": "catalog:",
+        "solid-js": "catalog:",
       },
       "peerDependencies": {
-        "effect": "4.0.0-beta.101",
+        "effect": "4.0.0-beta.107",
+        "solid-js": ">=1.9.0",
       },
       "optionalPeers": [
         "effect",
+        "solid-js",
       ],
     },
     "packages/codemode": {
@@ -518,7 +519,7 @@
       "name": "@opencode-ai/http-recorder",
       "version": "1.18.15",
       "dependencies": {
-        "@effect/platform-node-shared": "4.0.0-beta.101",
+        "@effect/platform-node-shared": "4.0.0-beta.107",
       },
       "devDependencies": {
         "@effect/platform-node": "catalog:",
@@ -589,9 +590,9 @@
       },
       "peerDependencies": {
         "@opencode-ai/theme": "workspace:*",
-        "@opentui/core": ">=0.5.3",
-        "@opentui/keymap": ">=0.5.3",
-        "@opentui/solid": ">=0.5.3",
+        "@opentui/core": ">=0.5.4",
+        "@opentui/keymap": ">=0.5.4",
+        "@opentui/solid": ">=0.5.4",
         "solid-js": ">=1.9.0",
       },
       "optionalPeers": [
@@ -684,9 +685,8 @@
       "dependencies": {
         "@kobalte/core": "catalog:",
         "@opencode-ai/client": "workspace:*",
-        "@opencode-ai/core": "workspace:*",
-        "@opencode-ai/sdk": "file:../app/vendor/opencode-ai-sdk-1.18.8-dev.tgz",
         "@opencode-ai/ui": "workspace:*",
+        "@opencode-ai/util": "workspace:*",
         "@pierre/diffs": "catalog:",
         "@shikijs/stream": "catalog:",
         "@solid-primitives/event-listener": "2.4.5",
@@ -698,6 +698,7 @@
         "fuzzysort": "catalog:",
         "luxon": "catalog:",
         "marked": "catalog:",
+        "mermaid": "11.16.1",
         "morphdom": "2.7.8",
         "motion": "12.34.5",
         "remeda": "catalog:",
@@ -914,7 +915,7 @@
         "diff": "catalog:",
         "dompurify": "3.3.1",
         "fuzzysort": "catalog:",
-        "katex": "0.16.27",
+        "katex": "0.16.47",
         "luxon": "catalog:",
         "marked": "catalog:",
         "marked-shiki": "catalog:",
@@ -1051,9 +1052,9 @@
   ],
   "patchedDependencies": {
     "@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
-    "effect@4.0.0-beta.101": "patches/effect@4.0.0-beta.101.patch",
-    "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
     "@tanstack/virtual-core@3.17.3": "patches/@tanstack%2Fvirtual-core@3.17.3.patch",
+    "drizzle-orm@1.0.0-rc.2": "patches/drizzle-orm@1.0.0-rc.2.patch",
+    "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
     "@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
     "@ai-sdk/mistral@3.0.51": "patches/@ai-sdk%2Fmistral@3.0.51.patch",
     "@ff-labs/fff-bun@0.10.1": "patches/@ff-labs%2Ffff-bun@0.10.1.patch",
@@ -1065,6 +1066,7 @@
     "@ai-sdk/openai-compatible@2.0.41": "patches/@ai-sdk%2Fopenai-compatible@2.0.41.patch",
   },
   "overrides": {
+    "@effect/platform-node-shared": "catalog:",
     "@opentui/core": "catalog:",
     "@opentui/keymap": "catalog:",
     "@opentui/solid": "catalog:",
@@ -1075,9 +1077,10 @@
   "catalog": {
     "@cloudflare/workers-types": "4.20251008.0",
     "@corvu/drawer": "0.2.4",
-    "@effect/opentelemetry": "4.0.0-beta.101",
-    "@effect/platform-node": "4.0.0-beta.101",
-    "@effect/sql-sqlite-bun": "4.0.0-beta.101",
+    "@effect/opentelemetry": "4.0.0-beta.107",
+    "@effect/platform-node": "4.0.0-beta.107",
+    "@effect/platform-node-shared": "4.0.0-beta.107",
+    "@effect/sql-sqlite-bun": "4.0.0-beta.107",
     "@hono/standard-validator": "0.2.0",
     "@hono/zod-validator": "0.4.2",
     "@kobalte/core": "0.13.11",
@@ -1085,9 +1088,9 @@
     "@npmcli/arborist": "9.4.0",
     "@octokit/rest": "22.0.0",
     "@openauthjs/openauth": "0.0.0-20250322224806",
-    "@opentui/core": "0.5.3",
-    "@opentui/keymap": "0.5.3",
-    "@opentui/solid": "0.5.3",
+    "@opentui/core": "0.5.4",
+    "@opentui/keymap": "0.5.4",
+    "@opentui/solid": "0.5.4",
     "@pierre/diffs": "1.2.10",
     "@playwright/test": "1.59.1",
     "@sentry/solid": "10.36.0",
@@ -1114,7 +1117,7 @@
     "dompurify": "3.3.1",
     "drizzle-kit": "1.0.0-rc.2",
     "drizzle-orm": "1.0.0-rc.2",
-    "effect": "4.0.0-beta.101",
+    "effect": "4.0.0-beta.107",
     "fuzzysort": "3.1.0",
     "get-east-asian-width": "1.6.0",
     "hono": "4.10.7",
@@ -1561,13 +1564,13 @@
 
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@@ -2953,8 +2956,6 @@
 
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@@ -3229,7 +3230,7 @@
 
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@@ -3239,7 +3240,7 @@
 
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@@ -3541,7 +3542,7 @@
 
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@@ -3871,7 +3872,7 @@
 
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+    "effect": ["effect@4.0.0-beta.107", "", { "dependencies": { "@standard-schema/spec": "^1.1.0", "fast-check": "^4.9.0", "kubernetes-types": "^1.30.0", "msgpackr": "^2.0.4", "uuid": "^14.0.1" } }, "sha512-OoBAv8eF+yanc+C6xhgEUnWeXUSHA6ynnscYqpkAY9GSnzZWystsIjBowVqCkLpHGlnRtdIqYT3wHwpOY6JDnQ=="],
 
     "ejs": ["ejs@3.1.10", "", { "dependencies": { "jake": "^10.8.5" }, "bin": { "ejs": "bin/cli.js" } }, "sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA=="],
 
@@ -3945,7 +3946,7 @@
 
     "es-get-iterator": ["es-get-iterator@1.1.3", "", { "dependencies": { "call-bind": "^1.0.2", "get-intrinsic": "^1.1.3", "has-symbols": "^1.0.3", "is-arguments": "^1.1.1", "is-map": "^2.0.2", "is-set": "^2.0.2", "is-string": "^1.0.7", "isarray": "^2.0.5", "stop-iteration-iterator": "^1.0.0" } }, "sha512-sPZmqHBe6JIiTfN5q2pEi//TwxmAFHwj/XEuYjTuse78i8KxaqMTTzxPoFKuzRpDpTJ+0NAbpfenkmH2rePtuw=="],
 
-    "es-module-lexer": ["es-module-lexer@2.3.1", "", {}, "sha512-shc1dbU90Yl/xq1QrC7QRtfcwURZuVRfPhZbDoldJ1cn1gzDvBaBWlv0eFolj5+0znnPJz5TXLxsN77X/12KTA=="],
+    "es-module-lexer": ["es-module-lexer@1.7.0", "", {}, "sha512-jEQoCwk8hyb2AZziIOLhDqpm5+2ww5uIE6lkO/6jcOCusfk6LhMHpXXfBLXTZ7Ydyt0j4VoUQv6uGNYbdW+kBA=="],
 
     "es-object-atoms": ["es-object-atoms@1.1.2", "", { "dependencies": { "es-errors": "^1.3.0" } }, "sha512-HWcBoN6NileqtSydK2FqHbS/LoDd2pqrnQHLyJzBj4kOp/ky2MWMN694xOfkK8/SnUsW2DH7EfyVlydKCsm1Zw=="],
 
@@ -4073,8 +4074,6 @@
 
     "find-babel-config": ["find-babel-config@2.1.2", "", { "dependencies": { "json5": "^2.2.3" } }, "sha512-ZfZp1rQyp4gyuxqt1ZqjFGVeVBvmpURMqdIWXbPRfB97Bf6BzdK/xSIbylEINzQ0kB5tlDQfn9HkNXXWsqTqLg=="],
 
-    "find-my-way-ts": ["find-my-way-ts@0.1.6", "", {}, "sha512-a85L9ZoXtNAey3Y6Z+eBWW658kO/MwR7zIafkIUPUMf3isZG0NCs2pjW2wtjxAKuJPxMAsHUIP4ZPGv0o5gyTA=="],
-
     "find-up": ["find-up@5.0.0", "", { "dependencies": { "locate-path": "^6.0.0", "path-exists": "^4.0.0" } }, "sha512-78/PXT1wlLLDgTzDs7sjq9hzz0vXD+zn+7wypEe4fXQxCmdmqfGsEPQxmiCSQI3ajFV91bVSsvNtrJRiW6nGng=="],
 
     "finity": ["finity@0.5.4", "", {}, "sha512-3l+5/1tuw616Lgb0QBimxfdd2TqaDGpfCBpfX6EqtFmqUV3FtQnVEX4Aa62DagYEqnsTIjZcTfbq9msDbXYgyA=="],
@@ -4325,7 +4324,7 @@
 
     "inherits": ["inherits@2.0.4", "", {}, "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="],
 
-    "ini": ["ini@7.0.0", "", {}, "sha512-ifK0CgjALofS5bkrcTy4RaQ9Vx2Knf/eLeIO+NaswQEpH1UblrtTSCIvN71qQDMq0PeQ/SSPojvEJp9vvvfr+w=="],
+    "ini": ["ini@6.0.0", "", {}, "sha512-IBTdIkzZNOpqm7q3dRqJvMaldXjDHWkEDfrwGEQTs5eaQMWV+djAhR+wahyNNMAa+qpbDUhBMVt4ZKNwpPm7xQ=="],
 
     "inline-style-parser": ["inline-style-parser@0.2.7", "", {}, "sha512-Nb2ctOyNR8DqQoR0OwRG95uNWIC0C1lCgf5Naz5H6Ji72KZ8OcFZLz2P5sNgwlyoJ8Yif11oMuYs5pBQa86csA=="],
 
@@ -4523,7 +4522,7 @@
 
     "jwt-decode": ["jwt-decode@3.1.2", "", {}, "sha512-UfpWE/VZn0iP50d8cz9NrZLM9lSWhcJ+0Gt/nm4by88UL+J1SiKN8/5dkjMmbEzwL2CAe+67GsegCbIKtbp75A=="],
 
-    "katex": ["katex@0.16.27", "", { "dependencies": { "commander": "^8.3.0" }, "bin": { "katex": "cli.js" } }, "sha512-aeQoDkuRWSqQN6nSvVCEFvfXdqo1OQiCmmW1kc9xSdjutPv7BGO7pqY9sQRJpMOGrEdfDgF2TfRXe5eUAD2Waw=="],
+    "katex": ["katex@0.16.47", "", { "dependencies": { "commander": "^8.3.0" }, "bin": { "katex": "cli.js" } }, "sha512-Eeo8Ys1doU1z+x8AZsPpQu+p/QcZBI5PeOo7QGQdy2x2m0MU/hYagBbGOmXwr5KVbEfVuWv9LpnQWeehogurjg=="],
 
     "keyv": ["keyv@4.5.4", "", { "dependencies": { "json-buffer": "3.0.1" } }, "sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw=="],
 
@@ -4833,8 +4832,6 @@
 
     "muggle-string": ["muggle-string@0.4.1", "", {}, "sha512-VNTrAak/KhO2i8dqqnqnAHOa3cYBwXEZe9h+D5h/1ZqFSTEFHdM65lR7RoIqq3tBBYavsOXV84NoHXZ0AkPyqQ=="],
 
-    "multipasta": ["multipasta@0.2.8", "", {}, "sha512-ZPWuMKyv0cSO29f7hozp+k6+crZbQijV8ipMvxNxRf2SwtYGTX1ZX89Kd20VV4H9Znonx+EQn+iy1wGQsJ+b+Q=="],
-
     "mustache": ["mustache@4.2.0", "", { "bin": { "mustache": "bin/mustache" } }, "sha512-71ippSywq5Yb7/tVYyGbkBggbU8H3u5Rz56fH60jGFgr8uHwxs+aSKeqmluIVzM0m0kB7xQjKS6qPfd0b2ZoqQ=="],
 
     "mysql2": ["mysql2@3.14.4", "", { "dependencies": { "aws-ssl-profiles": "^1.1.1", "denque": "^2.1.0", "generate-function": "^2.3.1", "iconv-lite": "^0.7.0", "long": "^5.2.1", "lru.min": "^1.0.0", "named-placeholders": "^1.1.3", "seq-queue": "^0.0.5", "sqlstring": "^2.3.2" } }, "sha512-Cs/jx3WZPNrYHVz+Iunp9ziahaG5uFMvD2R8Zlmc194AqXNxt9HBNu7ZsPYrUtmJsF0egETCWIdMIYAwOGjL1w=="],
@@ -5621,7 +5618,7 @@
 
     "tinyclip": ["tinyclip@0.1.15", "", {}, "sha512-uo33abH+Ays0xYaDysoBt494Hb3hsEczMpcC0MwFl773pazORx4fmvKhclhR1wonUbB6vvpRsvVMwnhfqeMc+A=="],
 
-    "tinyexec": ["tinyexec@1.3.0", "", {}, "sha512-QKAl9m8gWWGHV8jZcPeym6j+XULi6tOf1mT83WYJ4Lk2ytW/uwAWkrP0uFsdoYMdueVJ0qs26wZ+23xeB4ibNQ=="],
+    "tinyexec": ["tinyexec@0.3.2", "", {}, "sha512-KQQR9yN7R5+OSwaK0XQoj22pwHoTlgYqmUscPYoknOoWCWfj/5/ABTMRi69FrKU5ffPVh5QcFikpWJI/P1ocHA=="],
 
     "tinyglobby": ["tinyglobby@0.2.17", "", { "dependencies": { "fdir": "^6.5.0", "picomatch": "^4.0.4" } }, "sha512-wXR/dYpcqKmfWpEdZjiKJOwCNFndD0DMnrW/cYjVGttEkBfVgcLFHoNrlj47mjOVic9yyNu65alsgF4NQyTa2g=="],
 
@@ -5641,8 +5638,6 @@
 
     "toidentifier": ["toidentifier@1.0.1", "", {}, "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="],
 
-    "toml": ["toml@4.3.0", "", {}, "sha512-lVb8X9BsPVuH0M4BKeS91tXAmJvCjQ5UIyAbQFaxkKGyUFK2RPkhwaFSQH8vbpl1d23eu/IBH+dwVMHWaq9A5A=="],
-
     "toolbeam-docs-theme": ["toolbeam-docs-theme@0.4.8", "", { "peerDependencies": { "@astrojs/starlight": "^0.34.3", "astro": "^5.7.13" } }, "sha512-b+5ynEFp4Woe5a22hzNQm42lD23t13ZMihVxHbzjA50zdcM9aOSJTIjdJ0PDSd4/50HbBXcpHiQsz6rM4N88ww=="],
 
     "topojson-client": ["topojson-client@3.1.0", "", { "dependencies": { "commander": "2" }, "bin": { "topo2geo": "bin/topo2geo", "topomerge": "bin/topomerge", "topoquantize": "bin/topoquantize" } }, "sha512-605uxS6bcYxGXw9qi62XyrV6Q3xwbndjachmNxu8HWTtVPxZfEJN9fd/SZS1Q54Sn2y0TMyMxFj/cJINqGHrKw=="],
@@ -6057,6 +6052,8 @@
 
     "@ai-sdk/xai/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.42", "", { "dependencies": { "@ai-sdk/provider": "3.0.14", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.8", "undici": "^5.29.0" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-Q07lZsq4ir+xwAGVfSbY2WNGLrbfWINFaL2I/vTBFrkuXeP7VZh+UtQgLOKZS6Z/6flNFW22jDYdbINvwTV/PA=="],
 
+    "@antfu/install-pkg/tinyexec": ["tinyexec@1.3.0", "", {}, "sha512-QKAl9m8gWWGHV8jZcPeym6j+XULi6tOf1mT83WYJ4Lk2ytW/uwAWkrP0uFsdoYMdueVJ0qs26wZ+23xeB4ibNQ=="],
+
     "@astrojs/cloudflare/vite": ["vite@6.4.3", "", { "dependencies": { "esbuild": "^0.25.0", "fdir": "^6.4.4", "picomatch": "^4.0.2", "postcss": "^8.5.3", "rollup": "^4.34.9", "tinyglobby": "^0.2.13" }, "optionalDependencies": { "fsevents": "~2.3.3" }, "peerDependencies": { "@types/node": "^18.0.0 || ^20.0.0 || >=22.0.0", "jiti": ">=1.21.0", "less": "*", "lightningcss": "^1.21.0", "sass": "*", "sass-embedded": "*", "stylus": "*", "sugarss": "*", "terser": "^5.16.0", "tsx": "^4.8.1", "yaml": "^2.4.2" }, "optionalPeers": ["@types/node", "jiti", "less", "lightningcss", "sass", "sass-embedded", "stylus", "sugarss", "terser", "tsx", "yaml"], "bin": { "vite": "bin/vite.js" } }, "sha512-NTKlcQjlAK7MlQoyb6LgaqHc8sso/pVyUJYWMws3jg21uTJw/LddqIFPcPqP6PzpgbIcZyKI85sFE4HBrQDA8A=="],
 
     "@astrojs/cloudflare/wrangler": ["wrangler@4.110.0", "", { "dependencies": { "@cloudflare/kv-asset-handler": "0.5.0", "@cloudflare/unenv-preset": "2.16.1", "blake3-wasm": "2.1.5", "esbuild": "0.28.1", "miniflare": "4.20260708.1", "path-to-regexp": "6.3.0", "unenv": "2.0.0-rc.24", "workerd": "1.20260708.1" }, "optionalDependencies": { "fsevents": "2.3.3" }, "peerDependencies": { "@cloudflare/workers-types": "^5.20260708.1" }, "optionalPeers": ["@cloudflare/workers-types"], "bin": { "wrangler": "bin/wrangler.js", "wrangler2": "bin/wrangler.js", "cf-wrangler": "bin/cf-wrangler.js" } }, "sha512-xZeXKYi7hxQRF5anL+v77RkufJNpF9f3Eqeyqq2QBsETpLZgh0Agj0jJ6JPtkbgn6ukZdh8OK5egsGPWIditgg=="],
@@ -6073,8 +6070,6 @@
 
     "@astrojs/mdx/@astrojs/markdown-remark": ["@astrojs/markdown-remark@6.3.11", "", { "dependencies": { "@astrojs/internal-helpers": "0.7.6", "@astrojs/prism": "3.3.0", "github-slugger": "^2.0.0", "hast-util-from-html": "^2.0.3", "hast-util-to-text": "^4.0.2", "import-meta-resolve": "^4.2.0", "js-yaml": "^4.1.1", "mdast-util-definitions": "^6.0.0", "rehype-raw": "^7.0.0", "rehype-stringify": "^10.0.1", "remark-gfm": "^4.0.1", "remark-parse": "^11.0.0", "remark-rehype": "^11.1.2", "remark-smartypants": "^3.0.2", "shiki": "^3.21.0", "smol-toml": "^1.6.0", "unified": "^11.0.5", "unist-util-remove-position": "^5.0.0", "unist-util-visit": "^5.0.0", "unist-util-visit-parents": "^6.0.2", "vfile": "^6.0.3" } }, "sha512-hcaxX/5aC6lQgHeGh1i+aauvSwIT6cfyFjKWvExYSxUhZZBBdvCliOtu06gbQyhbe0pGJNoNmqNlQZ5zYUuIyQ=="],
 
-    "@astrojs/mdx/es-module-lexer": ["es-module-lexer@1.7.0", "", {}, "sha512-jEQoCwk8hyb2AZziIOLhDqpm5+2ww5uIE6lkO/6jcOCusfk6LhMHpXXfBLXTZ7Ydyt0j4VoUQv6uGNYbdW+kBA=="],
-
     "@astrojs/mdx/source-map": ["source-map@0.7.6", "", {}, "sha512-i5uvt8C3ikiWeNZSVZNWcfZPItFQOsYTUAOkcUPGd8DqDy1uOUikjt5dG+uRlwyvR108Fb9DOd4GvXfT0N2/uQ=="],
 
     "@astrojs/node/@astrojs/internal-helpers": ["@astrojs/internal-helpers@0.10.2", "", { "dependencies": { "@types/hast": "^3.0.4", "@types/mdast": "^4.0.4", "js-yaml": "^4.3.0", "picomatch": "^4.0.4", "retext-smartypants": "^6.2.0", "shiki": "^4.0.2", "smol-toml": "^1.6.0", "unified": "^11.0.5" } }, "sha512-yt7fMgPYqSM4Tmr+taTW6Per+hjJ8Pk6lA1PAcDyqzOt8HzJ6Kje5WzCxA2Sd+9wsUW7uhkLeoTMK0cXPwH9rQ=="],
@@ -6247,6 +6242,8 @@
 
     "@dot/log/chalk": ["chalk@4.1.2", "", { "dependencies": { "ansi-styles": "^4.1.0", "supports-color": "^7.1.0" } }, "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA=="],
 
+    "@effect/platform-node-shared/ws": ["ws@8.21.3", "", { "peerDependencies": { "bufferutil": "^4.0.1", "utf-8-validate": ">=5.0.2" }, "optionalPeers": ["bufferutil", "utf-8-validate"] }, "sha512-201TZ/kPWxoPr/OKWjquZR1SWKXcvxdH+e1xrx89b3YbmzLMFCLfnaG1HFIgWzJOEWZ7MvpK++odZufgYR50Rw=="],
+
     "@electron/asar/commander": ["commander@5.1.0", "", {}, "sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg=="],
 
     "@electron/asar/glob": ["glob@7.2.3", "", { "dependencies": { "fs.realpath": "^1.0.0", "inflight": "^1.0.4", "inherits": "2", "minimatch": "^3.1.1", "once": "^1.3.0", "path-is-absolute": "^1.0.0" } }, "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q=="],
@@ -6301,10 +6298,6 @@
 
     "@modelcontextprotocol/sdk/jose": ["jose@6.2.8", "", {}, "sha512-Bsdjwm3Qsd/P0jR+BHDe3LytDfY7WBq2HmCCLIwuVRHMuEC9ae7/R474GIUdF1NgCyZjzVo/A9DOiOBtXq8ZoQ=="],
 
-    "@npmcli/config/ini": ["ini@6.0.0", "", {}, "sha512-IBTdIkzZNOpqm7q3dRqJvMaldXjDHWkEDfrwGEQTs5eaQMWV+djAhR+wahyNNMAa+qpbDUhBMVt4ZKNwpPm7xQ=="],
-
-    "@npmcli/git/ini": ["ini@6.0.0", "", {}, "sha512-IBTdIkzZNOpqm7q3dRqJvMaldXjDHWkEDfrwGEQTs5eaQMWV+djAhR+wahyNNMAa+qpbDUhBMVt4ZKNwpPm7xQ=="],
-
     "@npmcli/query/postcss-selector-parser": ["postcss-selector-parser@7.1.5", "", { "dependencies": { "cssesc": "^3.0.0", "util-deprecate": "^1.0.2" } }, "sha512-KvvtD7SrlBP7dlgkBghEE3r84CABm5SmV2aNcG4oCA+qDnJ/tvKonFVvwWAyyWUEwxuNawdfEAZKP9zM3oZ2Uw=="],
 
     "@octokit/auth-app/@octokit/request": ["@octokit/request@10.0.13", "", { "dependencies": { "@octokit/endpoint": "^11.0.3", "@octokit/request-error": "^7.1.1", "@octokit/types": "^17.0.0", "content-type": "^2.0.0", "json-with-bigint": "^3.5.3", "universal-user-agent": "^7.0.2" } }, "sha512-v2269YxL9Yf+x3d+gRI63FP0vFQEiWgLyBzxe/Y+0yFDg2B/Tzf5dhh9VNfccVAQnfcfwQWyk/y6Bn7rUXXs7A=="],
@@ -6375,8 +6368,6 @@
 
     "@opencode-ai/desktop/typescript": ["typescript@5.6.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw=="],
 
-    "@opencode-ai/session-ui/@opencode-ai/sdk": ["@opencode-ai/sdk@../app/vendor/opencode-ai-sdk-1.18.8-dev.tgz", { "dependencies": { "cross-spawn": "7.0.6" } }, "sha512-C2nfk4x0sPINwE5V6DPkFSuH3PkUmKPWHPzxpXC1j+3Ui5hslLCWJbkk8WcOG1Lyt3C0+yp4ea64v/kmtYCO4w=="],
-
     "@opencode-ai/session-ui/@solid-primitives/resize-observer": ["@solid-primitives/resize-observer@2.1.3", "", { "dependencies": { "@solid-primitives/event-listener": "^2.4.3", "@solid-primitives/rootless": "^1.5.2", "@solid-primitives/static-store": "^0.1.2", "@solid-primitives/utils": "^6.3.2" }, "peerDependencies": { "solid-js": "^1.6.12" } }, "sha512-zBLje5E06TgOg93S7rGPldmhDnouNGhvfZVKOp+oG2XU8snA+GoCSSCz1M+jpNAg5Ek2EakU5UVQqL152WmdXQ=="],
 
     "@opencode-ai/storybook/@types/react": ["@types/react@18.0.25", "", { "dependencies": { "@types/prop-types": "*", "@types/scheduler": "*", "csstype": "^3.0.2" } }, "sha512-xD6c0KDT4m7n9uD4ZHi02lzskaiqcBxf4zi+tXZY98a04wvc0hi/TcCPC2FOESZi51Nd7tlUeOJY8RofL799/g=="],
@@ -6475,8 +6466,6 @@
 
     "@slack/web-api/p-retry": ["p-retry@4.6.2", "", { "dependencies": { "@types/retry": "0.12.0", "retry": "^0.13.1" } }, "sha512-312Id396EbJdvRONlngUx0NydfrIQ5lsYu0znKVUzVvArzEIt08V1qhtyESbGVd1FGX7UKtiFp5uwKZdM8wIuQ=="],
 
-    "@solidjs/start/es-module-lexer": ["es-module-lexer@1.7.0", "", {}, "sha512-jEQoCwk8hyb2AZziIOLhDqpm5+2ww5uIE6lkO/6jcOCusfk6LhMHpXXfBLXTZ7Ydyt0j4VoUQv6uGNYbdW+kBA=="],
-
     "@solidjs/start/path-to-regexp": ["path-to-regexp@8.4.2", "", {}, "sha512-qRcuIdP69NPm4qbACK+aDogI5CBDMi1jKe0ry5rSQJz8JVLsC7jV8XpiJjGRLLol3N+R5ihGYcrPLTno6pAdBA=="],
 
     "@solidjs/start/shiki": ["shiki@1.29.2", "", { "dependencies": { "@shikijs/core": "1.29.2", "@shikijs/engine-javascript": "1.29.2", "@shikijs/engine-oniguruma": "1.29.2", "@shikijs/langs": "1.29.2", "@shikijs/themes": "1.29.2", "@shikijs/types": "1.29.2", "@shikijs/vscode-textmate": "^10.0.1", "@types/hast": "^3.0.4" } }, "sha512-njXuliz/cP+67jU2hukkxCNuH1yUi4QfdZZY+sMr5PPrIyXSu5iTb/qYC4BiWWB0vZ+7TbdvYUCeL23zpwCfbg=="],
@@ -6547,6 +6536,12 @@
 
     "@vitejs/plugin-react/@rolldown/pluginutils": ["@rolldown/pluginutils@1.0.0-beta.27", "", {}, "sha512-+d0F4MKMCbeVUJwG96uQ4SgAznZNSq93I3V+9NHA4OpvqG8mRCpGdKmK8l/dl02h2CCDHwW2FqilnTyDcAnqjA=="],
 
+    "@vitest/expect/@vitest/utils": ["@vitest/utils@3.2.4", "", { "dependencies": { "@vitest/pretty-format": "3.2.4", "loupe": "^3.1.4", "tinyrainbow": "^2.0.0" } }, "sha512-fB2V0JFrQSMsCo9HiSq3Ezpdv4iYaXRG1Sx8edX3MwxfyNn83mKiGzOcH+Fkxt4MHxr3y42fQi1oeAInqgX2QA=="],
+
+    "@vitest/expect/tinyrainbow": ["tinyrainbow@2.0.0", "", {}, "sha512-op4nsTR47R6p0vMUUoYl/a+ljLFVtlfaXkLQmqfLR1qHma1h/ysYk4hEXZ880bf2CYgTskvTa/e196Vd5dDQXw=="],
+
+    "@vitest/mocker/@vitest/spy": ["@vitest/spy@4.1.10", "", {}, "sha512-PLf/Ugvoq5wO/b4rwYCR1h2PSIdXz7wnkQFMiUpLdtM7l6pqVFcQIBEHyT1+l+cj7mNwAfZHzqXqDyjvOuwbDw=="],
+
     "@vscode/emmet-helper/jsonc-parser": ["jsonc-parser@2.3.1", "", {}, "sha512-H8jvkz1O50L3dMZCsLqiuB2tA7muqbSg1AtGEkN0leAqGjsUzDJir3Zwr02BhqdcITPg3ei3mZ+HjMocAknhhg=="],
 
     "ai/@ai-sdk/gateway": ["@ai-sdk/gateway@2.0.127", "", { "dependencies": { "@ai-sdk/provider": "2.0.3", "@ai-sdk/provider-utils": "3.0.31", "@vercel/oidc": "3.1.0" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-SiD2kyR2J4fEY0FTXYpNznwWN90ohrwzAMi2laZCGkI/lL8DmyJ31zFzMYJvzRusp2IQYmvkYQWOpZpBl01xYw=="],
@@ -6585,14 +6580,10 @@
 
     "astro/diff": ["diff@5.2.2", "", {}, "sha512-vtcDfH3TOjP8UekytvnHH1o1P4FcUdt4eQ1Y+Abap1tk/OB2MWQvcwS2ClCd1zuIhc3JKOx6p3kod8Vfys3E+A=="],
 
-    "astro/es-module-lexer": ["es-module-lexer@1.7.0", "", {}, "sha512-jEQoCwk8hyb2AZziIOLhDqpm5+2ww5uIE6lkO/6jcOCusfk6LhMHpXXfBLXTZ7Ydyt0j4VoUQv6uGNYbdW+kBA=="],
-
     "astro/js-yaml": ["js-yaml@4.3.1", "", { "dependencies": { "argparse": "^2.0.1" }, "bin": { "js-yaml": "bin/js-yaml.js" } }, "sha512-CY6crGq313MX8GkwvB7tzgp99vjQxY1++5y10/BKN/GUfHqWaOGQMNZkBvqSzsZKWk/ijwHlWzzkLulsGHhjWQ=="],
 
     "astro/shiki": ["shiki@3.23.0", "", { "dependencies": { "@shikijs/core": "3.23.0", "@shikijs/engine-javascript": "3.23.0", "@shikijs/engine-oniguruma": "3.23.0", "@shikijs/langs": "3.23.0", "@shikijs/themes": "3.23.0", "@shikijs/types": "3.23.0", "@shikijs/vscode-textmate": "^10.0.2", "@types/hast": "^3.0.4" } }, "sha512-55Dj73uq9ZXL5zyeRPzHQsK7Nbyt6Y10k5s7OjuFZGMhpp4r/rsLBH0o/0fstIzX1Lep9VxefWljK/SKCzygIA=="],
 
-    "astro/tinyexec": ["tinyexec@0.3.2", "", {}, "sha512-KQQR9yN7R5+OSwaK0XQoj22pwHoTlgYqmUscPYoknOoWCWfj/5/ABTMRi69FrKU5ffPVh5QcFikpWJI/P1ocHA=="],
-
     "astro/unstorage": ["unstorage@1.17.5", "", { "dependencies": { "anymatch": "^3.1.3", "chokidar": "^5.0.0", "destr": "^2.0.5", "h3": "^1.15.10", "lru-cache": "^11.2.7", "node-fetch-native": "^1.6.7", "ofetch": "^1.5.1", "ufo": "^1.6.3" }, "peerDependencies": { "@azure/app-configuration": "^1.8.0", "@azure/cosmos": "^4.2.0", "@azure/data-tables": "^13.3.0", "@azure/identity": "^4.6.0", "@azure/keyvault-secrets": "^4.9.0", "@azure/storage-blob": "^12.26.0", "@capacitor/preferences": "^6 || ^7 || ^8", "@deno/kv": ">=0.9.0", "@netlify/blobs": "^6.5.0 || ^7.0.0 || ^8.1.0 || ^9.0.0 || ^10.0.0", "@planetscale/database": "^1.19.0", "@upstash/redis": "^1.34.3", "@vercel/blob": ">=0.27.1", "@vercel/functions": "^2.2.12 || ^3.0.0", "@vercel/kv": "^1 || ^2 || ^3", "aws4fetch": "^1.0.20", "db0": ">=0.2.1", "idb-keyval": "^6.2.1", "ioredis": "^5.4.2", "uploadthing": "^7.4.4" }, "optionalPeers": ["@azure/app-configuration", "@azure/cosmos", "@azure/data-tables", "@azure/identity", "@azure/keyvault-secrets", "@azure/storage-blob", "@capacitor/preferences", "@deno/kv", "@netlify/blobs", "@planetscale/database", "@upstash/redis", "@vercel/blob", "@vercel/functions", "@vercel/kv", "aws4fetch", "db0", "idb-keyval", "ioredis", "uploadthing"] }, "sha512-0i3iqvRfx29hkNntHyQvJTpf5W9dQ9ZadSoRU8+xVlhVtT7jAX57fazYO9EHvcRCfBCyi5YRya7XCDOsbTgkPg=="],
 
     "astro/vite": ["vite@6.4.3", "", { "dependencies": { "esbuild": "^0.25.0", "fdir": "^6.4.4", "picomatch": "^4.0.2", "postcss": "^8.5.3", "rollup": "^4.34.9", "tinyglobby": "^0.2.13" }, "optionalDependencies": { "fsevents": "~2.3.3" }, "peerDependencies": { "@types/node": "^18.0.0 || ^20.0.0 || >=22.0.0", "jiti": ">=1.21.0", "less": "*", "lightningcss": "^1.21.0", "sass": "*", "sass-embedded": "*", "stylus": "*", "sugarss": "*", "terser": "^5.16.0", "tsx": "^4.8.1", "yaml": "^2.4.2" }, "optionalPeers": ["@types/node", "jiti", "less", "lightningcss", "sass", "sass-embedded", "stylus", "sugarss", "terser", "tsx", "yaml"], "bin": { "vite": "bin/vite.js" } }, "sha512-NTKlcQjlAK7MlQoyb6LgaqHc8sso/pVyUJYWMws3jg21uTJw/LddqIFPcPqP6PzpgbIcZyKI85sFE4HBrQDA8A=="],
@@ -6793,8 +6784,6 @@
 
     "mermaid/dompurify": ["dompurify@3.4.13", "", { "optionalDependencies": { "@types/trusted-types": "^2.0.7" } }, "sha512-2vmYIoqjze2d+kakP8S/nS5shfsl587kzwEjcGlTdiksUVgFHnFCsLYDVj/JNqJVOQZGSYBTmuycv0PodwmnMQ=="],
 
-    "mermaid/katex": ["katex@0.16.47", "", { "dependencies": { "commander": "^8.3.0" }, "bin": { "katex": "cli.js" } }, "sha512-Eeo8Ys1doU1z+x8AZsPpQu+p/QcZBI5PeOo7QGQdy2x2m0MU/hYagBbGOmXwr5KVbEfVuWv9LpnQWeehogurjg=="],
-
     "mermaid/marked": ["marked@16.4.2", "", { "bin": { "marked": "bin/marked.js" } }, "sha512-TI3V8YYWvkVf3KJe1dRkpnjs68JUPyEa5vjKrp1XEEJUAOaQc+Qj+L1qWbPd0SJuAdQkFU0h73sXXqwDYxsiDA=="],
 
     "micromark-extension-mdxjs/acorn": ["acorn@8.18.0", "", { "bin": { "acorn": "bin/acorn" } }, "sha512-lGq+9yr1/GuAWaVYIHRjvvySG5/4VfKIvC8EWxStPdcDh/Ka7FG3twP6v4d5BkravUilhIAsG4Qj83t02LWUPQ=="],
@@ -6885,10 +6874,6 @@
 
     "sst/jose": ["jose@5.2.3", "", {}, "sha512-KUXdbctm1uHVL8BYhnyHkgp3zDX5KW8ZhAKVFEfUbU2P8Alpzjb+48hHvjOdQIyPshoblhzsuqOwEEAbtHVirA=="],
 
-    "storybook/@vitest/expect": ["@vitest/expect@3.2.4", "", { "dependencies": { "@types/chai": "^5.2.2", "@vitest/spy": "3.2.4", "@vitest/utils": "3.2.4", "chai": "^5.2.0", "tinyrainbow": "^2.0.0" } }, "sha512-Io0yyORnB6sikFlt8QW5K7slY4OjqNX9jmJQ02QDda8lyM6B5oNgVWoSoKPac8/kgnCUzuHQKrSLtu/uOqqrig=="],
-
-    "storybook/@vitest/spy": ["@vitest/spy@3.2.4", "", { "dependencies": { "tinyspy": "^4.0.3" } }, "sha512-vAfasCOe6AIK70iP5UD11Ac4siNUNJ9i/9PZ3NKx07sG6sUxeag1LWdNrMWeKKYBLlzuK+Gn65Yd5nyL6ds+nw=="],
-
     "storybook/esbuild": ["esbuild@0.28.1", "", { "optionalDependencies": { "@esbuild/aix-ppc64": "0.28.1", "@esbuild/android-arm": "0.28.1", "@esbuild/android-arm64": "0.28.1", "@esbuild/android-x64": "0.28.1", "@esbuild/darwin-arm64": "0.28.1", "@esbuild/darwin-x64": "0.28.1", "@esbuild/freebsd-arm64": "0.28.1", "@esbuild/freebsd-x64": "0.28.1", "@esbuild/linux-arm": "0.28.1", "@esbuild/linux-arm64": "0.28.1", "@esbuild/linux-ia32": "0.28.1", "@esbuild/linux-loong64": "0.28.1", "@esbuild/linux-mips64el": "0.28.1", "@esbuild/linux-ppc64": "0.28.1", "@esbuild/linux-riscv64": "0.28.1", "@esbuild/linux-s390x": "0.28.1", "@esbuild/linux-x64": "0.28.1", "@esbuild/netbsd-arm64": "0.28.1", "@esbuild/netbsd-x64": "0.28.1", "@esbuild/openbsd-arm64": "0.28.1", "@esbuild/openbsd-x64": "0.28.1", "@esbuild/openharmony-arm64": "0.28.1", "@esbuild/sunos-x64": "0.28.1", "@esbuild/win32-arm64": "0.28.1", "@esbuild/win32-ia32": "0.28.1", "@esbuild/win32-x64": "0.28.1" }, "bin": { "esbuild": "bin/esbuild" } }, "sha512-HrJrvZv5ayxBzPfwphOoNzkzOIIlifzk0KJrGK2c8R4+LKpMtpYLQeUdjnwjWv/LZlkH2laZk+4w78pi99D4Vw=="],
 
     "storybook/open": ["open@10.2.0", "", { "dependencies": { "default-browser": "^5.2.1", "define-lazy-prop": "^3.0.0", "is-inside-container": "^1.0.0", "wsl-utils": "^0.1.0" } }, "sha512-YgBpdJHPyQ2UE5x+hlSXcnejzAvD0b22U2OuAP+8OnlJT+PjWPxtgmGqKKc+RgTM63U9gN0YzrYc71R2WT/hTA=="],
@@ -6939,11 +6924,15 @@
 
     "venice-ai-sdk-provider/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.40", "", { "dependencies": { "@ai-sdk/provider": "3.0.14", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.8" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-OL5IrpUm9Y8Dwy+w/vvFwPotS6m52O9W0op2oXgXdCROMJIBalBI0oro6OIBYkPxvm5Xg02GSkoQN25RlR0bnw=="],
 
-    "vite-plugin-dynamic-import/es-module-lexer": ["es-module-lexer@1.7.0", "", {}, "sha512-jEQoCwk8hyb2AZziIOLhDqpm5+2ww5uIE6lkO/6jcOCusfk6LhMHpXXfBLXTZ7Ydyt0j4VoUQv6uGNYbdW+kBA=="],
-
     "vite-plugin-icons-spritesheet/glob": ["glob@11.1.0", "", { "dependencies": { "foreground-child": "^3.3.1", "jackspeak": "^4.1.1", "minimatch": "^10.1.1", "minipass": "^7.1.2", "package-json-from-dist": "^1.0.0", "path-scurry": "^2.0.0" }, "bin": { "glob": "dist/esm/bin.mjs" } }, "sha512-vuNwKSaKiqm7g0THUBu2x7ckSs3XJLXE+2ssL7/MfTGPLLcrJQ/4Uq1CjPTtO5cCIiRxqvN6Twy1qOwhL0Xjcw=="],
 
-    "vite-plugin-icons-spritesheet/tinyexec": ["tinyexec@0.3.2", "", {}, "sha512-KQQR9yN7R5+OSwaK0XQoj22pwHoTlgYqmUscPYoknOoWCWfj/5/ABTMRi69FrKU5ffPVh5QcFikpWJI/P1ocHA=="],
+    "vitest/@vitest/expect": ["@vitest/expect@4.1.10", "", { "dependencies": { "@standard-schema/spec": "^1.1.0", "@types/chai": "^5.2.2", "@vitest/spy": "4.1.10", "@vitest/utils": "4.1.10", "chai": "^6.2.2", "tinyrainbow": "^3.1.0" } }, "sha512-YsCn+qAk1GWjQOWFEsEcL2gNQ0zmVmQu3T03qP6UyjhtmdtwtbuI+DASn/7iQB3HGTXkdBwGddzxPlmiql5vlA=="],
+
+    "vitest/@vitest/spy": ["@vitest/spy@4.1.10", "", {}, "sha512-PLf/Ugvoq5wO/b4rwYCR1h2PSIdXz7wnkQFMiUpLdtM7l6pqVFcQIBEHyT1+l+cj7mNwAfZHzqXqDyjvOuwbDw=="],
+
+    "vitest/es-module-lexer": ["es-module-lexer@2.3.1", "", {}, "sha512-shc1dbU90Yl/xq1QrC7QRtfcwURZuVRfPhZbDoldJ1cn1gzDvBaBWlv0eFolj5+0znnPJz5TXLxsN77X/12KTA=="],
+
+    "vitest/tinyexec": ["tinyexec@1.3.0", "", {}, "sha512-QKAl9m8gWWGHV8jZcPeym6j+XULi6tOf1mT83WYJ4Lk2ytW/uwAWkrP0uFsdoYMdueVJ0qs26wZ+23xeB4ibNQ=="],
 
     "vitest/vite": ["vite@8.2.1", "", { "dependencies": { "lightningcss": "^1.33.0", "picomatch": "^4.0.5", "postcss": "^8.5.25", "rolldown": "~1.2.1", "tinyglobby": "^0.2.17" }, "optionalDependencies": { "fsevents": "~2.3.3" }, "peerDependencies": { "@types/node": "^20.19.0 || >=22.12.0", "@vitejs/devtools": "^0.4.0", "esbuild": "^0.27.0 || ^0.28.0", "jiti": ">=1.21.0", "less": "^4.0.0", "sass": "^1.70.0", "sass-embedded": "^1.70.0", "stylus": ">=0.54.8", "sugarss": "^5.0.0", "terser": "^5.16.0", "tsx": "^4.8.1", "yaml": "^2.4.2" }, "optionalPeers": ["@types/node", "@vitejs/devtools", "esbuild", "jiti", "less", "sass", "sass-embedded", "stylus", "sugarss", "terser", "tsx", "yaml"], "bin": { "vite": "bin/vite.js" } }, "sha512-EU/eS7BH3XROHh2YnBefjM6DBKA6ZeMZEYQbj7NLWg5wHYlhB8B/Mayd5XsgWq+NFYccDOTemRpdETWR6Ka/lw=="],
 
@@ -7035,6 +7024,8 @@
 
     "@astrojs/node/astro/diff": ["diff@8.0.3", "", {}, "sha512-qejHi7bcSD4hQAZE0tNAawRK1ZtafHDmMTMkrrIGgSLl7hTnQHmKCeB45xAcbfTqK2zowkM3j3bHt/4b/ARbYQ=="],
 
+    "@astrojs/node/astro/es-module-lexer": ["es-module-lexer@2.3.1", "", {}, "sha512-shc1dbU90Yl/xq1QrC7QRtfcwURZuVRfPhZbDoldJ1cn1gzDvBaBWlv0eFolj5+0znnPJz5TXLxsN77X/12KTA=="],
+
     "@astrojs/node/astro/esbuild": ["esbuild@0.28.1", "", { "optionalDependencies": { "@esbuild/aix-ppc64": "0.28.1", "@esbuild/android-arm": "0.28.1", "@esbuild/android-arm64": "0.28.1", "@esbuild/android-x64": "0.28.1", "@esbuild/darwin-arm64": "0.28.1", "@esbuild/darwin-x64": "0.28.1", "@esbuild/freebsd-arm64": "0.28.1", "@esbuild/freebsd-x64": "0.28.1", "@esbuild/linux-arm": "0.28.1", "@esbuild/linux-arm64": "0.28.1", "@esbuild/linux-ia32": "0.28.1", "@esbuild/linux-loong64": "0.28.1", "@esbuild/linux-mips64el": "0.28.1", "@esbuild/linux-ppc64": "0.28.1", "@esbuild/linux-riscv64": "0.28.1", "@esbuild/linux-s390x": "0.28.1", "@esbuild/linux-x64": "0.28.1", "@esbuild/netbsd-arm64": "0.28.1", "@esbuild/netbsd-x64": "0.28.1", "@esbuild/openbsd-arm64": "0.28.1", "@esbuild/openbsd-x64": "0.28.1", "@esbuild/openharmony-arm64": "0.28.1", "@esbuild/sunos-x64": "0.28.1", "@esbuild/win32-arm64": "0.28.1", "@esbuild/win32-ia32": "0.28.1", "@esbuild/win32-x64": "0.28.1" }, "bin": { "esbuild": "bin/esbuild" } }, "sha512-HrJrvZv5ayxBzPfwphOoNzkzOIIlifzk0KJrGK2c8R4+LKpMtpYLQeUdjnwjWv/LZlkH2laZk+4w78pi99D4Vw=="],
 
     "@astrojs/node/astro/fontace": ["fontace@0.4.1", "", { "dependencies": { "fontkitten": "^1.0.2" } }, "sha512-lDMvbAzSnHmbYMTEld5qdtvNH2/pWpICOqpean9IgC7vUbUJc3k+k5Dokp85CegamqQpFbXf0rAVkbzpyTA8aw=="],
@@ -7053,6 +7044,8 @@
 
     "@astrojs/node/astro/sharp": ["sharp@0.35.3", "", { "dependencies": { "@img/colour": "^1.1.0", "detect-libc": "^2.1.2", "semver": "^7.8.5" }, "optionalDependencies": { "@img/sharp-darwin-arm64": "0.35.3", "@img/sharp-darwin-x64": "0.35.3", "@img/sharp-freebsd-wasm32": "0.35.3", "@img/sharp-libvips-darwin-arm64": "1.3.2", "@img/sharp-libvips-darwin-x64": "1.3.2", "@img/sharp-libvips-linux-arm": "1.3.2", "@img/sharp-libvips-linux-arm64": "1.3.2", "@img/sharp-libvips-linux-ppc64": "1.3.2", "@img/sharp-libvips-linux-riscv64": "1.3.2", "@img/sharp-libvips-linux-s390x": "1.3.2", "@img/sharp-libvips-linux-x64": "1.3.2", "@img/sharp-libvips-linuxmusl-arm64": "1.3.2", "@img/sharp-libvips-linuxmusl-x64": "1.3.2", "@img/sharp-linux-arm": "0.35.3", "@img/sharp-linux-arm64": "0.35.3", "@img/sharp-linux-ppc64": "0.35.3", "@img/sharp-linux-riscv64": "0.35.3", "@img/sharp-linux-s390x": "0.35.3", "@img/sharp-linux-x64": "0.35.3", "@img/sharp-linuxmusl-arm64": "0.35.3", "@img/sharp-linuxmusl-x64": "0.35.3", "@img/sharp-webcontainers-wasm32": "0.35.3", "@img/sharp-win32-arm64": "0.35.3", "@img/sharp-win32-ia32": "0.35.3", "@img/sharp-win32-x64": "0.35.3" }, "peerDependencies": { "@types/node": "*" }, "optionalPeers": ["@types/node"] }, "sha512-ej0zVHuZGHCiABXcNxeYhpRnPNPAcvbG8RMdBAhDAxLKkCRVSpK3Iyu7qbqw3JMzoj0REeM6f3tJLtVwl0023Q=="],
 
+    "@astrojs/node/astro/tinyexec": ["tinyexec@1.3.0", "", {}, "sha512-QKAl9m8gWWGHV8jZcPeym6j+XULi6tOf1mT83WYJ4Lk2ytW/uwAWkrP0uFsdoYMdueVJ0qs26wZ+23xeB4ibNQ=="],
+
     "@astrojs/node/astro/unifont": ["unifont@0.7.4", "", { "dependencies": { "css-tree": "^3.1.0", "ofetch": "^1.5.1", "ohash": "^2.0.11" } }, "sha512-oHeis4/xl42HUIeHuNZRGEvxj5AaIKR+bHPNegRq5LV1gdc3jundpONbjglKpihmJf+dswygdMJn3eftGIMemg=="],
 
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@@ -7089,6 +7082,8 @@
 
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+
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@@ -7105,6 +7100,8 @@
 
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+
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@@ -7463,6 +7460,8 @@
 
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+
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@@ -7481,6 +7480,8 @@
 
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@@ -7589,6 +7590,8 @@
 
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+    "@vitest/expect/@vitest/utils/@vitest/pretty-format": ["@vitest/pretty-format@3.2.4", "", { "dependencies": { "tinyrainbow": "^2.0.0" } }, "sha512-IVNZik8IVRJRTr9fxlitMKeJeXFFFN0JaB9PHPGQ8NKQbGpfjlTx9zO4RefN8gp7eqjNy8nyK3NZmBzOPeIxtA=="],
+
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@@ -7653,6 +7656,8 @@
 
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+    "blume/@astrojs/mdx/es-module-lexer": ["es-module-lexer@2.3.1", "", {}, "sha512-shc1dbU90Yl/xq1QrC7QRtfcwURZuVRfPhZbDoldJ1cn1gzDvBaBWlv0eFolj5+0znnPJz5TXLxsN77X/12KTA=="],
+
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     "blume/@clack/prompts/@clack/core": ["@clack/core@1.4.3", "", { "dependencies": { "fast-wrap-ansi": "^0.2.0", "sisteransi": "^1.0.5" } }, "sha512-/kr3UWNtdJfxZtPgDqUOmG2pvwlmcLGheex5yiZKdwbzZJxhV+HMNR9QNmyY5cGwTNV6LrR7Jtp+KjhUAP1qBQ=="],
@@ -7683,6 +7688,8 @@
 
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+    "blume/astro/es-module-lexer": ["es-module-lexer@2.3.1", "", {}, "sha512-shc1dbU90Yl/xq1QrC7QRtfcwURZuVRfPhZbDoldJ1cn1gzDvBaBWlv0eFolj5+0znnPJz5TXLxsN77X/12KTA=="],
+
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@@ -7695,6 +7702,8 @@
 
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+    "blume/astro/tinyexec": ["tinyexec@1.3.0", "", {}, "sha512-QKAl9m8gWWGHV8jZcPeym6j+XULi6tOf1mT83WYJ4Lk2ytW/uwAWkrP0uFsdoYMdueVJ0qs26wZ+23xeB4ibNQ=="],
+
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     "blume/astro/unstorage": ["unstorage@1.17.5", "", { "dependencies": { "anymatch": "^3.1.3", "chokidar": "^5.0.0", "destr": "^2.0.5", "h3": "^1.15.10", "lru-cache": "^11.2.7", "node-fetch-native": "^1.6.7", "ofetch": "^1.5.1", "ufo": "^1.6.3" }, "peerDependencies": { "@azure/app-configuration": "^1.8.0", "@azure/cosmos": "^4.2.0", "@azure/data-tables": "^13.3.0", "@azure/identity": "^4.6.0", "@azure/keyvault-secrets": "^4.9.0", "@azure/storage-blob": "^12.26.0", "@capacitor/preferences": "^6 || ^7 || ^8", "@deno/kv": ">=0.9.0", "@netlify/blobs": "^6.5.0 || ^7.0.0 || ^8.1.0 || ^9.0.0 || ^10.0.0", "@planetscale/database": "^1.19.0", "@upstash/redis": "^1.34.3", "@vercel/blob": ">=0.27.1", "@vercel/functions": "^2.2.12 || ^3.0.0", "@vercel/kv": "^1 || ^2 || ^3", "aws4fetch": "^1.0.20", "db0": ">=0.2.1", "idb-keyval": "^6.2.1", "ioredis": "^5.4.2", "uploadthing": "^7.4.4" }, "optionalPeers": ["@azure/app-configuration", "@azure/cosmos", "@azure/data-tables", "@azure/identity", "@azure/keyvault-secrets", "@azure/storage-blob", "@capacitor/preferences", "@deno/kv", "@netlify/blobs", "@planetscale/database", "@upstash/redis", "@vercel/blob", "@vercel/functions", "@vercel/kv", "aws4fetch", "db0", "idb-keyval", "ioredis", "uploadthing"] }, "sha512-0i3iqvRfx29hkNntHyQvJTpf5W9dQ9ZadSoRU8+xVlhVtT7jAX57fazYO9EHvcRCfBCyi5YRya7XCDOsbTgkPg=="],
@@ -7817,8 +7826,6 @@
 
     "lazystream/readable-stream/string_decoder": ["string_decoder@1.1.1", "", { "dependencies": { "safe-buffer": "~5.1.0" } }, "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg=="],
 
-    "mermaid/katex/commander": ["commander@8.3.0", "", {}, "sha512-OkTL9umf+He2DZkUq8f8J9of7yL6RJKI24dVITBmNfZBmri9zYZQrKkuXiKhyfPSu8tUhnVBB1iKXevvnlR4Ww=="],
-
     "p-locate/p-limit/yocto-queue": ["yocto-queue@0.1.0", "", {}, "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q=="],
 
     "pkg-dir/find-up/locate-path": ["locate-path@5.0.0", "", { "dependencies": { "p-locate": "^4.1.0" } }, "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g=="],
@@ -7833,12 +7840,6 @@
 
     "rimraf/glob/path-scurry": ["path-scurry@1.11.1", "", { "dependencies": { "lru-cache": "^10.2.0", "minipass": "^5.0.0 || ^6.0.2 || ^7.0.0" } }, "sha512-Xa4Nw17FS9ApQFJ9umLiJS4orGjm7ZzwUrwamcGQuHSzDyth9boKDaycYdDcZDuqYATXw4HFXgaqWTctW/v1HA=="],
 
-    "storybook/@vitest/expect/@vitest/utils": ["@vitest/utils@3.2.4", "", { "dependencies": { "@vitest/pretty-format": "3.2.4", "loupe": "^3.1.4", "tinyrainbow": "^2.0.0" } }, "sha512-fB2V0JFrQSMsCo9HiSq3Ezpdv4iYaXRG1Sx8edX3MwxfyNn83mKiGzOcH+Fkxt4MHxr3y42fQi1oeAInqgX2QA=="],
-
-    "storybook/@vitest/expect/chai": ["chai@5.3.3", "", { "dependencies": { "assertion-error": "^2.0.1", "check-error": "^2.1.1", "deep-eql": "^5.0.1", "loupe": "^3.1.0", "pathval": "^2.0.0" } }, "sha512-4zNhdJD/iOjSH0A05ea+Ke6MU5mmpQcbQsSOkgdaUMJ9zTlDTD/GYlwohmIE2u0gaxHYiVHEn1Fw9mZ/ktJWgw=="],
-
-    "storybook/@vitest/expect/tinyrainbow": ["tinyrainbow@2.0.0", "", {}, "sha512-op4nsTR47R6p0vMUUoYl/a+ljLFVtlfaXkLQmqfLR1qHma1h/ysYk4hEXZ880bf2CYgTskvTa/e196Vd5dDQXw=="],
-
     "storybook/esbuild/@esbuild/aix-ppc64": ["@esbuild/aix-ppc64@0.28.1", "", { "os": "aix", "cpu": "ppc64" }, "sha512-Svl7tq8k/08+p6CXPpRjQ1fKX+1odH/BQbb48fV6fj3CWHhsoIOoY87w1oHXm0qEpkIK3ZfVgp0hed3XBXzXMQ=="],
 
     "storybook/esbuild/@esbuild/android-arm": ["@esbuild/android-arm@0.28.1", "", { "os": "android", "cpu": "arm" }, "sha512-0k2F129Xdio1TdJfzJ8sy1Q47vUD2NnwdhiAf7drUN1EBTfPf4hsFCtmMgu/6m8JSzsBrlmVjudMBQqOfG8usQ=="],
@@ -7911,6 +7912,8 @@
 
     "venice-ai-sdk-provider/@ai-sdk/openai-compatible/@ai-sdk/provider-utils": ["@ai-sdk/provider-utils@4.0.42", "", { "dependencies": { "@ai-sdk/provider": "3.0.14", "@standard-schema/spec": "^1.1.0", "eventsource-parser": "^3.0.8", "undici": "^5.29.0" }, "peerDependencies": { "zod": "^3.25.76 || ^4.1.8" } }, "sha512-Q07lZsq4ir+xwAGVfSbY2WNGLrbfWINFaL2I/vTBFrkuXeP7VZh+UtQgLOKZS6Z/6flNFW22jDYdbINvwTV/PA=="],
 
+    "vitest/@vitest/expect/chai": ["chai@6.2.2", "", {}, "sha512-NUPRluOfOiTKBKvWPtSD4PhFvWCqOi0BGStNWs57X9js7XGTprSmFoz5F0tWhR4WPjNeR9jXqdC7/UpSJTnlRg=="],
+
     "vitest/vite/esbuild": ["esbuild@0.28.1", "", { "optionalDependencies": { "@esbuild/aix-ppc64": "0.28.1", "@esbuild/android-arm": "0.28.1", "@esbuild/android-arm64": "0.28.1", "@esbuild/android-x64": "0.28.1", "@esbuild/darwin-arm64": "0.28.1", "@esbuild/darwin-x64": "0.28.1", "@esbuild/freebsd-arm64": "0.28.1", "@esbuild/freebsd-x64": "0.28.1", "@esbuild/linux-arm": "0.28.1", "@esbuild/linux-arm64": "0.28.1", "@esbuild/linux-ia32": "0.28.1", "@esbuild/linux-loong64": "0.28.1", "@esbuild/linux-mips64el": "0.28.1", "@esbuild/linux-ppc64": "0.28.1", "@esbuild/linux-riscv64": "0.28.1", "@esbuild/linux-s390x": "0.28.1", "@esbuild/linux-x64": "0.28.1", "@esbuild/netbsd-arm64": "0.28.1", "@esbuild/netbsd-x64": "0.28.1", "@esbuild/openbsd-arm64": "0.28.1", "@esbuild/openbsd-x64": "0.28.1", "@esbuild/openharmony-arm64": "0.28.1", "@esbuild/sunos-x64": "0.28.1", "@esbuild/win32-arm64": "0.28.1", "@esbuild/win32-ia32": "0.28.1", "@esbuild/win32-x64": "0.28.1" }, "bin": { "esbuild": "bin/esbuild" } }, "sha512-HrJrvZv5ayxBzPfwphOoNzkzOIIlifzk0KJrGK2c8R4+LKpMtpYLQeUdjnwjWv/LZlkH2laZk+4w78pi99D4Vw=="],
 
     "vitest/vite/lightningcss": ["lightningcss@1.33.0", "", { "dependencies": { "detect-libc": "^2.0.3" }, "optionalDependencies": { "lightningcss-android-arm64": "1.33.0", "lightningcss-darwin-arm64": "1.33.0", "lightningcss-darwin-x64": "1.33.0", "lightningcss-freebsd-x64": "1.33.0", "lightningcss-linux-arm-gnueabihf": "1.33.0", "lightningcss-linux-arm64-gnu": "1.33.0", "lightningcss-linux-arm64-musl": "1.33.0", "lightningcss-linux-x64-gnu": "1.33.0", "lightningcss-linux-x64-musl": "1.33.0", "lightningcss-win32-arm64-msvc": "1.33.0", "lightningcss-win32-x64-msvc": "1.33.0" } }, "sha512-WkUDrojuJs0xkgGf2udWxa3yGBRxPtxUkB79i6aCZLRgc7PM8fZe9TosfPDcvEpQZbuFASnHYmRLBLUbmLOIIA=="],
@@ -8793,8 +8796,6 @@
 
     "rimraf/glob/path-scurry/lru-cache": ["lru-cache@10.4.3", "", {}, "sha512-JNAzZcXrCt42VGLuYz0zfAzDfAvJWW6AfYlDBQyDV5DClI2m5sAmK+OIO7s59XfsRsWHp02jAJrRadPRGTt6SQ=="],
 
-    "storybook/@vitest/expect/@vitest/utils/@vitest/pretty-format": ["@vitest/pretty-format@3.2.4", "", { "dependencies": { "tinyrainbow": "^2.0.0" } }, "sha512-IVNZik8IVRJRTr9fxlitMKeJeXFFFN0JaB9PHPGQ8NKQbGpfjlTx9zO4RefN8gp7eqjNy8nyK3NZmBzOPeIxtA=="],
-
     "temp/rimraf/glob/minimatch": ["minimatch@3.1.5", "", { "dependencies": { "brace-expansion": "^1.1.7" } }, "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w=="],
 
     "tw-to-css/tailwindcss/chokidar/glob-parent": ["glob-parent@5.1.2", "", { "dependencies": { "is-glob": "^4.0.1" } }, "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow=="],

package.json

@@ -37,18 +37,19 @@
       "packages/slack"
     ],
     "catalog": {
-      "@effect/opentelemetry": "4.0.0-beta.101",
-      "@effect/platform-node": "4.0.0-beta.101",
-      "@effect/sql-sqlite-bun": "4.0.0-beta.101",
+      "@effect/opentelemetry": "4.0.0-beta.107",
+      "@effect/platform-node": "4.0.0-beta.107",
+      "@effect/platform-node-shared": "4.0.0-beta.107",
+      "@effect/sql-sqlite-bun": "4.0.0-beta.107",
       "@npmcli/arborist": "9.4.0",
       "@types/bun": "1.3.13",
       "@types/cross-spawn": "6.0.6",
       "@octokit/rest": "22.0.0",
       "@hono/standard-validator": "0.2.0",
       "@hono/zod-validator": "0.4.2",
-      "@opentui/core": "0.5.3",
-      "@opentui/keymap": "0.5.3",
-      "@opentui/solid": "0.5.3",
+      "@opentui/core": "0.5.4",
+      "@opentui/keymap": "0.5.4",
+      "@opentui/solid": "0.5.4",
       "@tanstack/solid-virtual": "3.13.32",
       "@shikijs/stream": "4.2.0",
       "@standard-schema/spec": "1.1.0",
@@ -70,7 +71,7 @@
       "dompurify": "3.3.1",
       "drizzle-kit": "1.0.0-rc.2",
       "drizzle-orm": "1.0.0-rc.2",
-      "effect": "4.0.0-beta.101",
+      "effect": "4.0.0-beta.107",
       "ai": "6.0.168",
       "cross-spawn": "7.0.6",
       "hono": "4.10.7",
@@ -120,8 +121,7 @@
     "prettier": "3.6.2",
     "semver": "^7.6.0",
     "sst": "catalog:",
-    "turbo": "2.10.2",
-    "vitest": "4.1.10"
+    "turbo": "2.10.2"
   },
   "dependencies": {
     "@aws-sdk/client-s3": "3.933.0",
@@ -154,6 +154,7 @@
     "@opentui/core": "catalog:",
     "@opentui/keymap": "catalog:",
     "@opentui/solid": "catalog:",
+    "@effect/platform-node-shared": "catalog:",
     "@types/bun": "catalog:",
     "@types/node": "catalog:",
     "effect": "catalog:"
@@ -164,6 +165,7 @@
     "@npmcli/agent@4.0.2": "patches/@npmcli%2Fagent@4.0.2.patch",
     "@silvia-odwyer/photon-node@0.3.4": "patches/@silvia-odwyer%2Fphoton-node@0.3.4.patch",
     "@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
+    "drizzle-orm@1.0.0-rc.2": "patches/drizzle-orm@1.0.0-rc.2.patch",
     "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
     "@ai-sdk/mistral@3.0.51": "patches/@ai-sdk%2Fmistral@3.0.51.patch",
     "gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
@@ -171,7 +173,6 @@
     "@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch",
     "@pierre/trees@1.0.0-beta.4": "patches/@pierre%2Ftrees@1.0.0-beta.4.patch",
     "@modelcontextprotocol/sdk@1.29.0": "patches/@modelcontextprotocol%2Fsdk@1.29.0.patch",
-    "effect@4.0.0-beta.101": "patches/effect@4.0.0-beta.101.patch",
     "@tanstack/virtual-core@3.17.3": "patches/@tanstack%2Fvirtual-core@3.17.3.patch",
     "@ff-labs/fff-bun@0.10.1": "patches/@ff-labs%2Ffff-bun@0.10.1.patch"
   }

packages/ai/src/protocols/anthropic-messages.ts

@@ -437,10 +437,19 @@ const lowerToolResultContent = Effect.fnUntraced(function* (part: ToolResultPart
   return yield* Effect.forEach(content, lowerToolResultContentItem)
 })
 
-// Mid-conversation system messages are a native Claude API feature only for
-// Opus 4.8. Other Anthropic models intentionally use the same visible wrapped-
-// user fallback as non-Anthropic routes rather than sending a role they reject.
-const supportsNativeSystemUpdates = (request: LLMRequest) => String(request.model.id) === "claude-opus-4-8"
+// Mid-conversation system messages became available with Opus 4.8 and version
+// 5 of the other supported Claude families. Treat later family versions as
+// compatible without assuming that every Anthropic Messages model is Claude.
+const supportsNativeSystemUpdates = (request: LLMRequest) => {
+  const match = /(?:^|[./])claude-(fable|haiku|mythos|opus|sonnet)-(\d+)(?:[.-](\d+))?/.exec(
+    String(request.model.id).toLowerCase(),
+  )
+  if (!match) return false
+  const major = Number(match[2])
+  if (match[1] !== "opus") return major >= 5
+  if (major !== 4) return major >= 5
+  return match[3] !== undefined && match[3].length <= 2 && Number(match[3]) >= 8
+}
 
 const endsInServerToolUse = (message: LLMRequest["messages"][number]) => {
   const last = message.content.at(-1)
@@ -957,9 +966,12 @@ const onMessageDelta = (state: ParserState, event: AnthropicEvent): StepResult =
   ]
 }
 
-const onMessageStop = (state: ParserState): StepResult => {
+const onMessageStop = Effect.fn("AnthropicMessages.onMessageStop")(function* (state: ParserState) {
+  const result = yield* ToolStream.finishAll(ADAPTER, state.tools)
   const events: LLMEvent[] = []
-  const lifecycle = Lifecycle.finish(state.lifecycle, events, {
+  const lifecycle = result.events.length ? Lifecycle.stepStart(state.lifecycle, events) : state.lifecycle
+  events.push(...result.events)
+  const finished = Lifecycle.finish(lifecycle, events, {
     reason: state.pendingFinish?.reason ?? {
       normalized: "unknown",
       raw: undefined,
@@ -967,8 +979,8 @@ const onMessageStop = (state: ParserState): StepResult => {
     usage: state.usage,
     providerMetadata: state.pendingFinish?.providerMetadata,
   })
-  return [{ ...state, lifecycle }, events]
-}
+  return [{ ...state, lifecycle: finished, tools: result.tools }, events] satisfies StepResult
+})
 
 // Prefix `error.type` so overloads, rate limits, and quota errors are visible
 // even when the provider message is generic or empty.
@@ -992,7 +1004,7 @@ const step = (state: ParserState, event: AnthropicEvent) => {
   if (event.type === "content_block_delta") return onContentBlockDelta(state, event)
   if (event.type === "content_block_stop") return onContentBlockStop(state, event)
   if (event.type === "message_delta") return Effect.succeed(onMessageDelta(state, event))
-  if (event.type === "message_stop") return Effect.succeed(onMessageStop(state))
+  if (event.type === "message_stop") return onMessageStop(state)
   if (event.type === "error") return onError(event)
   return Effect.succeed<StepResult>([state, NO_EVENTS])
 }

packages/ai/src/protocols/gemini.ts

@@ -92,7 +92,7 @@ const GeminiFunctionCallPart = Schema.Struct({
   functionCall: Schema.Struct({
     id: Schema.optional(Schema.String),
     name: Schema.String,
-    args: Schema.Unknown,
+    args: Schema.optional(Schema.Unknown),
   }),
   thoughtSignature: Schema.optional(Schema.String),
 })
@@ -166,6 +166,7 @@ const GeminiGenerationConfig = Schema.Struct({
 const GeminiBodyFields = {
   cachedContent: Schema.optional(Schema.String),
   contents: Schema.Array(GeminiContent),
+  labels: Schema.optional(Schema.Record(Schema.String, Schema.String)),
   safetySettings: optionalArray(GeminiSafetySetting),
   serviceTier: Schema.optional(Schema.String),
   systemInstruction: Schema.optional(GeminiSystemInstruction),
@@ -190,8 +191,19 @@ const GeminiCandidate = Schema.Struct({
   finishReason: Schema.optional(Schema.String),
 })
 
+const GeminiPromptFeedback = Schema.StructWithRest(
+  Schema.Struct({
+    blockReason: Schema.optional(Schema.String),
+    blockReasonMessage: Schema.optional(Schema.String),
+    safetyRatings: Schema.optional(Schema.Unknown),
+  }),
+  [Schema.Record(Schema.String, Schema.Unknown)],
+)
+type GeminiPromptFeedback = Schema.Schema.Type<typeof GeminiPromptFeedback>
+
 const GeminiEvent = Schema.Struct({
   candidates: optionalArray(GeminiCandidate),
+  promptFeedback: Schema.optional(GeminiPromptFeedback),
   usageMetadata: Schema.optional(GeminiUsage),
 })
 type GeminiEvent = Schema.Schema.Type<typeof GeminiEvent>
@@ -200,6 +212,7 @@ interface ParserState {
   readonly finishReason?: string
   readonly hasToolCalls: boolean
   readonly nextToolCallId: number
+  readonly promptFeedback?: GeminiPromptFeedback
   readonly usage?: Usage
   readonly lifecycle: Lifecycle.State
   readonly reasoningSignature?: string
@@ -503,32 +516,37 @@ const mapFinishReason = (finishReason: string | undefined, hasToolCalls: boolean
   return "unknown"
 }
 
-const finish = (state: ParserState): ReadonlyArray<LLMEvent> =>
-  state.finishReason || state.usage
-    ? (() => {
-        const events: LLMEvent[] = []
-        const lifecycle = state.reasoningSignature
-          ? Lifecycle.reasoningEnd(
-              state.lifecycle,
-              events,
-              "reasoning-0",
-              googleMetadata({ thoughtSignature: state.reasoningSignature }),
-            )
-          : state.lifecycle
-        Lifecycle.finish(lifecycle, events, {
-          reason: {
-            normalized: mapFinishReason(state.finishReason, state.hasToolCalls),
-            raw: state.finishReason,
-          },
-          usage: state.usage,
-        })
-        return events
-      })()
-    : []
+const finish = (state: ParserState): ReadonlyArray<LLMEvent> => {
+  const promptBlockReason = state.finishReason === undefined ? state.promptFeedback?.blockReason : undefined
+  const finishReason = state.finishReason ?? promptBlockReason
+  if (finishReason === undefined && state.usage === undefined) return []
+
+  const events: LLMEvent[] = []
+  const lifecycle = state.reasoningSignature
+    ? Lifecycle.reasoningEnd(
+        state.lifecycle,
+        events,
+        "reasoning-0",
+        googleMetadata({ thoughtSignature: state.reasoningSignature }),
+      )
+    : state.lifecycle
+  Lifecycle.finish(lifecycle, events, {
+    reason: {
+      normalized:
+        promptBlockReason === undefined ? mapFinishReason(finishReason, state.hasToolCalls) : "content-filter",
+      raw: finishReason,
+    },
+    usage: state.usage,
+    providerMetadata:
+      state.promptFeedback === undefined ? undefined : googleMetadata({ promptFeedback: state.promptFeedback }),
+  })
+  return events
+}
 
 const step = (state: ParserState, event: GeminiEvent) => {
   const nextState = {
     ...state,
+    promptFeedback: event.promptFeedback ?? state.promptFeedback,
     usage: event.usageMetadata ? (mapUsage(event.usageMetadata) ?? state.usage) : state.usage,
   }
   const candidate = event.candidates?.[0]
@@ -569,7 +587,7 @@ const step = (state: ParserState, event: GeminiEvent) => {
     }
 
     if ("functionCall" in part) {
-      const input = part.functionCall.args
+      const input = part.functionCall.args === undefined ? {} : part.functionCall.args
       const id = `tool_${nextToolCallId++}`
       const metadata = {
         ...(part.functionCall.id === undefined ? {} : { functionCallId: part.functionCall.id }),

packages/ai/src/protocols/shared.ts

@@ -202,14 +202,15 @@ export const errorText = (error: unknown) => {
  * decoder, and drops empty / `[DONE]` keep-alive events so the downstream
  * `decodeChunk` sees one JSON string per element. The SSE channel emits a
  * `Retry` control event on its error channel; we drop it here (we don't
- * implement client-driven retries) so the public error channel stays
- * `AIError`.
+ * implement client-driven retries). Decoder failures become provider output
+ * errors so the public error channel stays `AIError`.
  */
 export const sseFraming = (bytes: Stream.Stream<Uint8Array, AIError>): Stream.Stream<string, AIError> =>
   bytes.pipe(
     Stream.decodeText(),
     Stream.pipeThroughChannel(Sse.decode()),
     Stream.catchTag("Retry", () => Stream.empty),
+    Stream.catchTag("SseError", (error) => Stream.fail(eventError("sse", error.message))),
     Stream.filter((event) => event.data.length > 0 && event.data !== "[DONE]"),
     Stream.map((event) => event.data),
   )

packages/ai/src/provider-error.ts

@@ -57,7 +57,7 @@ export const isContextOverflowFailure = (failure: unknown) =>
     ? failure.reason._tag === "InvalidRequest" && failure.reason.classification === "context-overflow"
     : Schema.is(ProviderErrorEvent)(failure) && failure.classification === "context-overflow"
 
-const decodeJson = Schema.decodeUnknownOption(Schema.UnknownFromJsonString)
+const decodeJson = Schema.decodeUnknownOption(Schema.fromJsonString(Schema.Unknown))
 const QUOTA_CODES = new Set(["insufficient_quota", "usage_not_included", "billing_error"])
 const SERVER_CODES = new Set([
   "api_error",

packages/ai/src/providers/google-vertex.ts

@@ -1,14 +1,21 @@
+import { Effect } from "effect"
 import type { ProviderPackage } from "../provider-package.js"
 import { Gemini } from "../protocols/gemini.js"
+import { ProviderShared } from "../protocols/shared.js"
 import { Auth } from "../route/auth.js"
 import { Route, type RouteDefaultsInput } from "../route/client.js"
 import { Endpoint } from "../route/endpoint.js"
 import { Framing } from "../route/framing.js"
-import { ProviderID, type ModelID } from "../schema/index.js"
+import { ProviderID, type LLMRequest, type ModelID, type ProviderOptions } from "../schema/index.js"
 import { GoogleVertexShared } from "./google-vertex-shared.js"
 
-export type GeminiOptionsInput = Gemini.OptionsInput
-export type GeminiProviderOptionsInput = Gemini.ProviderOptionsInput
+export interface GeminiOptionsInput extends Gemini.OptionsInput {
+  readonly labels?: Readonly<Record<string, string>>
+}
+
+export type GeminiProviderOptionsInput = ProviderOptions & {
+  readonly gemini?: GeminiOptionsInput
+}
 
 export const id = ProviderID.make("google-vertex")
 
@@ -17,7 +24,7 @@ export type Config = RouteDefaultsInput &
     readonly baseURL?: string
     readonly location?: string
     readonly project?: string
-    readonly providerOptions?: Gemini.ProviderOptionsInput
+    readonly providerOptions?: GeminiProviderOptionsInput
   }
 
 export type Settings = ProviderPackage.Settings &
@@ -28,14 +35,33 @@ export type Settings = ProviderPackage.Settings &
     readonly baseURL?: string
     readonly location?: string
     readonly project?: string
-    readonly providerOptions?: Gemini.ProviderOptionsInput
+    readonly providerOptions?: GeminiProviderOptionsInput
   }
 
+const fromRequest = Effect.fn("GoogleVertex.fromRequest")(function* (request: LLMRequest) {
+  const body = yield* Gemini.protocol.body.from(request)
+  const value = request.providerOptions?.gemini?.labels
+  const labels = ProviderShared.isRecord(value)
+    ? Object.fromEntries(
+        Object.entries(value).filter((entry): entry is [string, string] => typeof entry[1] === "string"),
+      )
+    : undefined
+  return { ...body, labels }
+})
+
+const protocol = {
+  ...Gemini.protocol,
+  body: {
+    ...Gemini.protocol.body,
+    from: fromRequest,
+  },
+}
+
 const route = Route.make({
   id: "google-vertex-gemini",
   provider: id,
   providerMetadataKey: "google",
-  protocol: Gemini.protocol,
+  protocol,
   endpoint: Endpoint.path(({ request }) => {
     const model = String(request.model.id)
     return `/${model.startsWith("endpoints/") ? model : `models/${model}`}:streamGenerateContent?alt=sse`
@@ -78,7 +104,7 @@ export const configure = (input: Config = {}) => {
   return {
     id,
     model: (modelID: string | ModelID) =>
-      configuredRoute(input, modelID).model<Gemini.ProviderOptionsInput>({ id: modelID }),
+      configuredRoute(input, modelID).model<GeminiProviderOptionsInput>({ id: modelID }),
     configure,
   }
 }
@@ -87,10 +113,7 @@ export const provider = {
   id,
   configure,
 }
-export const model: ProviderPackage.Definition<Settings, Gemini.ProviderOptionsInput>["model"] = (
-  modelID,
-  settings,
-) => {
+export const model: ProviderPackage.Definition<Settings, GeminiProviderOptionsInput>["model"] = (modelID, settings) => {
   if (settings.apiKey !== undefined && settings.accessToken !== undefined)
     throw new Error("Google Vertex apiKey cannot be combined with accessToken or auth")
   return configure({

packages/ai/src/schema/errors.ts

@@ -148,7 +148,7 @@ export const AIErrorReason = Schema.Union([
 ]).pipe(Schema.toTaggedUnion("_tag"))
 export type AIErrorReason = Schema.Schema.Type<typeof AIErrorReason>
 
-export class AIError extends Schema.TaggedErrorClass<AIError>()("AI.Error", {
+export class AIError extends Schema.TaggedError<AIError>()("AI.Error", {
   module: Schema.String,
   method: Schema.String,
   reason: AIErrorReason,

packages/ai/test/provider/anthropic-messages.test.ts

@@ -136,6 +136,33 @@ describe("Anthropic Messages route", () => {
     }),
   )
 
+  it.effect("supports native chronological system updates on documented and later Claude family versions", () =>
+    Effect.gen(function* () {
+      const ids = [
+        "claude-opus-4-8",
+        "claude-opus-5-1",
+        "claude-sonnet-5",
+        "claude-haiku-5-1",
+        "claude-fable-6",
+        "anthropic/claude-mythos-7.2",
+      ]
+
+      const prepared = yield* Effect.forEach(ids, (id) =>
+        compileRequest(
+          LLM.request({
+            model: AnthropicMessages.route
+              .with({ endpoint: { baseURL: "https://api.anthropic.test/v1/" }, auth: Auth.header("x-api-key", "test") })
+              .model({ id }),
+            messages: [Message.user("Before."), Message.system("Update."), Message.assistant("After.")],
+            cache: "none",
+          }),
+        ),
+      )
+
+      expect(prepared.map((item) => item.body.messages[1]?.role)).toEqual(ids.map(() => "system"))
+    }),
+  )
+
   it.effect("lowers chronological system updates to wrapped user text for unsupported Anthropic models", () =>
     Effect.gen(function* () {
       const prepared = yield* compileRequest(
@@ -163,6 +190,34 @@ describe("Anthropic Messages route", () => {
     }),
   )
 
+  it.effect("does not infer native system update support for older or undocumented Claude families", () =>
+    Effect.gen(function* () {
+      const ids = [
+        "claude-opus-4-7",
+        "claude-opus-4-20250514",
+        "claude-sonnet-4-9",
+        "claude-haiku-4-9",
+        "custom-model-7",
+      ]
+
+      const prepared = yield* Effect.forEach(ids, (id) =>
+        compileRequest(
+          LLM.request({
+            model: AnthropicMessages.route
+              .with({ endpoint: { baseURL: "https://api.anthropic.test/v1/" }, auth: Auth.header("x-api-key", "test") })
+              .model({ id }),
+            messages: [Message.user("Before."), Message.system("Update."), Message.assistant("After.")],
+            cache: "none",
+          }),
+        ),
+      )
+
+      expect(prepared.map((item) => item.body.messages.some((message) => message.role === "system"))).toEqual(
+        ids.map(() => false),
+      )
+    }),
+  )
+
   it.effect("rejects non-text chronological system update content before send", () =>
     Effect.gen(function* () {
       const error = yield* compileRequest(
@@ -955,6 +1010,37 @@ describe("Anthropic Messages route", () => {
     }),
   )
 
+  it.effect("settles pending tool calls at message_stop", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents(
+              { type: "message_start", message: { usage: { input_tokens: 5 } } },
+              {
+                type: "content_block_start",
+                index: 0,
+                content_block: { type: "tool_use", id: "call_1", name: "lookup" },
+              },
+              {
+                type: "content_block_delta",
+                index: 0,
+                delta: { type: "input_json_delta", partial_json: '{"query":"weather"}' },
+              },
+              { type: "message_delta", delta: { stop_reason: "tool_use" }, usage: { output_tokens: 1 } },
+              { type: "message_stop" },
+            ),
+          ),
+        ),
+      )
+
+      expect(response.toolCalls).toMatchObject([
+        { id: "call_1", name: "lookup", input: { query: "weather" } },
+      ])
+      expect(response.finishReason).toEqual({ normalized: "tool-calls", raw: "tool_use" })
+    }),
+  )
+
   it.effect("assembles and persists multiple tool calls from one Anthropic response", () =>
     Effect.gen(function* () {
       const response = yield* LLMClient.generate(request).pipe(

packages/ai/test/provider/bedrock-mantle.test.ts

@@ -75,7 +75,6 @@ describe("Amazon Bedrock Mantle provider", () => {
             }),
           ),
         ),
-        Effect.flip,
       )
 
       expect(seen).toEqual([{ url: "https://mantle.test/v1/chat/completions", authorization: "Bearer test-key" }])

packages/ai/test/provider/gemini.test.ts

@@ -702,6 +702,80 @@ describe("Gemini route", () => {
     }),
   )
 
+  it.effect("leaves unsigned parallel calls unchanged after a signed Gemini 3 call", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: gemini3,
+          messages: [
+            Message.assistant([
+              ToolCallPart.make({
+                id: "tool_0",
+                name: "lookup",
+                input: { query: "weather" },
+                providerMetadata: { google: { thoughtSignature: "parallel_signature" } },
+              }),
+              ToolCallPart.make({ id: "tool_1", name: "lookup", input: { query: "news" } }),
+              ToolCallPart.make({ id: "tool_2", name: "lookup", input: { query: "sports" } }),
+            ]),
+          ],
+        }),
+      )
+
+      expect(prepared.body.contents).toEqual([
+        {
+          role: "model",
+          parts: [
+            {
+              functionCall: { id: undefined, name: "lookup", args: { query: "weather" } },
+              thoughtSignature: "parallel_signature",
+            },
+            {
+              functionCall: { id: undefined, name: "lookup", args: { query: "news" } },
+              thoughtSignature: undefined,
+            },
+            {
+              functionCall: { id: undefined, name: "lookup", args: { query: "sports" } },
+              thoughtSignature: undefined,
+            },
+          ],
+        },
+      ])
+    }),
+  )
+
+  it.effect("adds the validator bypass sentinel to every call in an unsigned Gemini 3 batch", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: gemini3,
+          messages: [
+            Message.assistant([
+              ToolCallPart.make({ id: "tool_0", name: "lookup", input: { query: "weather" } }),
+              ToolCallPart.make({ id: "tool_1", name: "lookup", input: { query: "news" } }),
+            ]),
+          ],
+        }),
+      )
+
+      expect(prepared.body.contents).toEqual([
+        {
+          role: "model",
+          parts: [
+            {
+              functionCall: { id: undefined, name: "lookup", args: { query: "weather" } },
+              thoughtSignature: "skip_thought_signature_validator",
+            },
+            {
+              functionCall: { id: undefined, name: "lookup", args: { query: "news" } },
+              thoughtSignature: "skip_thought_signature_validator",
+            },
+          ],
+        },
+      ])
+    }),
+  )
+
   it.effect("emits streamed tool calls and maps finish reason", () =>
     Effect.gen(function* () {
       const body = sseEvents({
@@ -767,6 +841,31 @@ describe("Gemini route", () => {
     }),
   )
 
+  it.effect("defaults omitted function call args to an empty object", () =>
+    Effect.gen(function* () {
+      const response = yield* LLMClient.generate(
+        LLMRequest.update(request, {
+          tools: [ToolDefinition.make({ name: "ping", description: "Ping", inputSchema: { type: "object" } })],
+        }),
+      ).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents({
+              candidates: [
+                {
+                  content: { role: "model", parts: [{ functionCall: { name: "ping" } }] },
+                  finishReason: "STOP",
+                },
+              ],
+            }),
+          ),
+        ),
+      )
+
+      expect(response.toolCalls).toEqual([{ type: "tool-call", id: "tool_0", name: "ping", input: {} }])
+    }),
+  )
+
   it.effect("maps tool calls without a finish reason", () =>
     Effect.gen(function* () {
       const response = yield* LLMClient.generate(
@@ -862,6 +961,51 @@ describe("Gemini route", () => {
     }),
   )
 
+  it.effect("preserves candidate-less prompt safety blocks as content-filter outcomes", () =>
+    Effect.gen(function* () {
+      const blocked = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents({
+              promptFeedback: {
+                blockReason: "FUTURE_SAFETY_REASON",
+                blockReasonMessage: "Prompt blocked",
+                safetyRatings: [{ category: "HARM_CATEGORY_HARASSMENT", blocked: true }],
+              },
+            }),
+          ),
+        ),
+      )
+      const blockedWithUsage = yield* LLMClient.generate(request).pipe(
+        Effect.provide(
+          fixedResponse(
+            sseEvents(
+              { promptFeedback: { blockReason: "SAFETY" } },
+              { usageMetadata: { promptTokenCount: 7, totalTokenCount: 7 } },
+            ),
+          ),
+        ),
+      )
+
+      expect(blocked.events.map((event) => event.type)).toEqual(["step-start", "step-finish", "finish"])
+      expect(blocked.events.at(-1)).toMatchObject({
+        type: "finish",
+        reason: { normalized: "content-filter", raw: "FUTURE_SAFETY_REASON" },
+        providerMetadata: {
+          google: {
+            promptFeedback: {
+              blockReason: "FUTURE_SAFETY_REASON",
+              blockReasonMessage: "Prompt blocked",
+              safetyRatings: [{ category: "HARM_CATEGORY_HARASSMENT", blocked: true }],
+            },
+          },
+        },
+      })
+      expect(blockedWithUsage.finishReason).toEqual({ normalized: "content-filter", raw: "SAFETY" })
+      expect(blockedWithUsage.usage).toMatchObject({ inputTokens: 7, totalTokens: 7 })
+    }),
+  )
+
   it.effect("maps current blocking and invalid-output finish reasons", () =>
     Effect.gen(function* () {
       const reasons = [

packages/ai/test/provider/google-vertex.test.ts

@@ -54,6 +54,27 @@ describe("Google Vertex providers", () => {
     }),
   )
 
+  it.effect("adds billing labels to Vertex Gemini requests", () =>
+    Effect.gen(function* () {
+      const prepared = yield* compileRequest(
+        LLM.request({
+          model: GoogleVertex.configure({
+            accessToken: "vertex-token",
+            project: "vertex-project",
+            providerOptions: {
+              gemini: { labels: { component: "opencode", environment: "test" } },
+            },
+          }).model("gemini-3.5-flash"),
+          prompt: "Say hello.",
+        }),
+      )
+
+      expect(prepared.body).toMatchObject({
+        labels: { component: "opencode", environment: "test" },
+      })
+    }),
+  )
+
   it.effect("projects Anthropic Messages onto the Vertex raw-predict API", () =>
     Effect.gen(function* () {
       const model = GoogleVertexMessages.configure({

packages/ai/test/schema.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import { Effect, Schema } from "effect"
+import { Effect, Schema, Stream } from "effect"
 import * as OpenAIChat from "../src/protocols/openai-chat.js"
 import * as OpenAIResponses from "../src/protocols/openai-responses.js"
 import {
@@ -90,6 +90,18 @@ describe("AI.Usage", () => {
     expect(ProviderShared.sumTokens()).toBeUndefined()
   })
 
+  test("sseFraming maps decoder failures to AI errors", async () => {
+    const error = await Effect.runPromise(
+      ProviderShared.sseFraming(Stream.make(new TextEncoder().encode(`data: ${"x".repeat(10 * 1024 * 1024)}`))).pipe(
+        Stream.runCollect,
+        Effect.flip,
+      ),
+    )
+
+    expect(error).toBeInstanceOf(AIError)
+    expect(error.reason._tag).toBe("InvalidProviderOutput")
+  })
+
   test("visibleOutputTokens clamps reasoning > output to zero", () => {
     expect(new Usage({ outputTokens: 10, reasoningTokens: 4 }).visibleOutputTokens).toBe(6)
     expect(new Usage({ outputTokens: 10 }).visibleOutputTokens).toBe(10)

packages/app/e2e/performance/timeline-stability/adverse.spec.ts

@@ -9,6 +9,7 @@ import {
 import {
   assistantMessage,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   shell,
   textPart,
@@ -97,13 +98,15 @@ test.describe("timeline adverse visual stability", () => {
       element.scrollTop = 0
     })
     await page.waitForTimeout(300)
-    const trigger = page.locator(`[data-timeline-part-id="${targetID}"] [data-slot="collapsible-trigger"]`)
+    const trigger = page.locator(
+      `[data-timeline-part-id="${renderedPartID(targetID)}"] [data-slot="collapsible-trigger"]`,
+    )
     await expect(trigger).toBeVisible()
     await trigger.click()
     await expect(trigger).toHaveAttribute("aria-expanded", "true")
 
     await scroller.evaluate((element) => (element.scrollTop = element.scrollHeight))
-    await expect(page.locator(`[data-timeline-part-id="${targetID}"]`)).toHaveCount(0)
+    await expect(page.locator(`[data-timeline-part-id="${renderedPartID(targetID)}"]`)).toHaveCount(0)
     await scroller.evaluate((element) => (element.scrollTop = 0))
     await expect(trigger).toBeVisible()
     await expect(trigger).toHaveAttribute("aria-expanded", "true")
@@ -127,13 +130,16 @@ test.describe("timeline adverse visual stability", () => {
       cpuRate: 4,
     })
     await waitForVisualSettle(page, [
-      `[data-timeline-part-id="${shellID}"]`,
-      `[data-timeline-part-id="${followingID}"]`,
+      `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
     ])
     const regions = defineVisualRegions({
-      shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+      shell: {
+        selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+        closest: '[data-timeline-row="AssistantPart"]',
+      },
       following: {
-        selector: `[data-timeline-part-id="${followingID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })
@@ -184,10 +190,13 @@ test.describe("timeline adverse visual stability", () => {
     })
     const group = `[data-timeline-part-ids="${contextIDs.join(",")}"]`
     const regions = defineVisualRegions({
-      shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+      shell: {
+        selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+        closest: '[data-timeline-row="AssistantPart"]',
+      },
       context: { selector: group, closest: '[data-timeline-row="AssistantPart"]' },
       following: {
-        selector: `[data-timeline-part-id="${followingID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })

packages/app/e2e/performance/timeline-stability/context-matrix.spec.ts

@@ -1,192 +0,0 @@
-import { expect, test } from "@playwright/test"
-import {
-  defineVisualRegions,
-  reportVisualStability,
-  startVisualProbe,
-  stopVisualProbe,
-  visualPlan,
-} from "../../utils/visual-stability"
-import {
-  assistantID,
-  assistantMessage,
-  event,
-  partUpdated,
-  setupTimeline,
-  textPart,
-  toolPart,
-  userMessage,
-  waitForVisualSettle,
-} from "./fixture"
-
-const inputs = {
-  read: { filePath: "src/a.ts", offset: 0, limit: 120 },
-  glob: { path: ".", pattern: "**/*.ts" },
-  grep: { path: ".", pattern: "stable", include: "*.ts" },
-  list: { path: "src" },
-}
-
-test("appends context operations while the group is expanded", async ({ page }, testInfo) => {
-  const firstID = "prt_append_01_read"
-  const followingID = "prt_append_99_following"
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(),
-      assistantMessage([toolPart(firstID, "read", "running", inputs.read), textPart(followingID, "Following append")], {
-        completed: false,
-      }),
-    ],
-    cpuRate: 4,
-  })
-  const initialGroup = `[data-timeline-part-ids="${firstID}"]`
-  await page.locator(`${initialGroup} [data-slot="collapsible-trigger"]`).click()
-  await waitForVisualSettle(page, [initialGroup, `[data-timeline-part-id="${followingID}"]`])
-  const regions = defineVisualRegions({
-    context: {
-      selector: '[data-timeline-part-ids^="prt_append_01_read"]',
-      closest: '[data-timeline-row="AssistantPart"]',
-    },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-  })
-  await startVisualProbe(page, regions)
-  await timeline.send(partUpdated(toolPart("prt_append_02_glob", "glob", "running", inputs.glob)), 180)
-  await timeline.send(partUpdated(toolPart("prt_append_03_grep", "grep", "completed", inputs.grep)), 240)
-  await timeline.send(partUpdated(toolPart("prt_append_04_list", "list", "completed", inputs.list)), 500)
-  const trace = await stopVisualProbe<keyof typeof regions>(page)
-  await reportVisualStability(
-    testInfo,
-    "context-append",
-    trace,
-    visualPlan(
-      regions,
-      [
-        { type: "required", regions: ["context", "following"] },
-        { type: "unique", regions: ["context", "following"] },
-        { type: "stable", regions: ["context", "following"] },
-        { type: "opacity", regions: "all" },
-        { type: "continuity", regions: "all" },
-        { type: "motion", regions: ["following"], maxPositionReversals: 0 },
-        { type: "label-stability", regions: "all" },
-        { type: "preserve-bottom-anchor" },
-        { type: "flow", regions: ["context", "following"] },
-      ],
-      { perMarker: true },
-    ),
-  )
-  await expect(
-    page.locator(
-      '[data-timeline-part-ids="prt_append_01_read,prt_append_02_glob,prt_append_03_grep,prt_append_04_list"]',
-    ),
-  ).toBeVisible()
-  await expect(
-    page.locator('[data-timeline-part-ids^="prt_append_01_read"] [data-slot="collapsible-trigger"]'),
-  ).toHaveAttribute("aria-expanded", "true")
-})
-
-test("splits and merges context groups when a middle text part changes", async ({ page }, testInfo) => {
-  const textID = "prt_split_02_text"
-  const followingID = "prt_split_99_following"
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(),
-      assistantMessage([
-        toolPart("prt_split_01_read", "read", "completed", inputs.read),
-        textPart(textID, "Boundary"),
-        toolPart("prt_split_03_glob", "glob", "completed", inputs.glob),
-        textPart(followingID, "Following split groups"),
-      ]),
-    ],
-    cpuRate: 4,
-  })
-  const regions = defineVisualRegions({
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-  })
-  await startVisualProbe(page, regions)
-  await timeline.send(
-    event("message.part.removed", { sessionID: "ses_timeline_stability", messageID: assistantID, partID: textID }),
-    500,
-  )
-  await expect(page.locator('[data-timeline-part-ids="prt_split_01_read,prt_split_03_glob"]')).toBeVisible()
-  await timeline.send(partUpdated(textPart(textID, "Boundary restored")), 500)
-  await expect(page.locator('[data-timeline-part-ids="prt_split_01_read"]')).toBeVisible()
-  await expect(page.locator('[data-timeline-part-ids="prt_split_03_glob"]')).toBeVisible()
-  const trace = await stopVisualProbe<keyof typeof regions>(page)
-  await reportVisualStability(
-    testInfo,
-    "context-split-merge",
-    trace,
-    visualPlan(
-      regions,
-      [
-        { type: "required", regions: ["following"] },
-        { type: "unique", regions: ["following"] },
-        { type: "stable", regions: ["following"] },
-        { type: "opacity", regions: "all" },
-        { type: "continuity", regions: "all" },
-        { type: "motion", regions: "all", maxPositionReversals: 1 },
-        { type: "label-stability", regions: "all" },
-      ],
-      { perMarker: true },
-    ),
-  )
-})
-
-test("removing the first context member replaces the group once without overlapping following content", async ({
-  page,
-}, testInfo) => {
-  const ids = ["prt_key_01_read", "prt_key_02_glob", "prt_key_03_grep"]
-  const followingID = "prt_key_99_following"
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(),
-      assistantMessage([
-        toolPart(ids[0]!, "read", "completed", inputs.read),
-        toolPart(ids[1]!, "glob", "completed", inputs.glob),
-        toolPart(ids[2]!, "grep", "completed", inputs.grep),
-        textPart(followingID, "Following replaced group"),
-      ]),
-    ],
-    cpuRate: 4,
-  })
-  const original = page.locator(`[data-timeline-part-ids="${ids.join(",")}"]`)
-  const originalRowKey = await original.evaluate((element) =>
-    element.closest("[data-timeline-key]")?.getAttribute("data-timeline-key"),
-  )
-  await original.locator('[data-slot="collapsible-trigger"]').click()
-  await expect(original.locator('[data-slot="collapsible-trigger"]')).toHaveAttribute("aria-expanded", "true")
-  const regions = defineVisualRegions({
-    context: {
-      selector: '[data-timeline-part-ids*="prt_key_02_glob"]',
-      closest: '[data-timeline-row="AssistantPart"]',
-    },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-  })
-  await startVisualProbe(page, regions)
-  await timeline.send(
-    event("message.part.removed", { sessionID: "ses_timeline_stability", messageID: assistantID, partID: ids[0] }),
-    500,
-  )
-  const trace = await stopVisualProbe<keyof typeof regions>(page)
-  await reportVisualStability(
-    testInfo,
-    "context-first-remove",
-    trace,
-    visualPlan(regions, [
-      { type: "required", regions: ["context", "following"] },
-      { type: "unique", regions: ["context", "following"] },
-      { type: "opacity", regions: "all" },
-      { type: "continuity", regions: "all" },
-      { type: "motion", regions: "all", maxPositionReversals: 0 },
-      { type: "label-stability", regions: "all" },
-      { type: "flow", regions: ["context", "following"] },
-    ]),
-  )
-  await expect(page.locator(`[data-timeline-part-ids="${ids.slice(1).join(",")}"]`)).toBeVisible()
-  expect(
-    await page
-      .locator(`[data-timeline-part-ids="${ids.slice(1).join(",")}"]`)
-      .evaluate((element) => element.closest("[data-timeline-key]")?.getAttribute("data-timeline-key")),
-  ).toBe(originalRowKey)
-  await expect(
-    page.locator(`[data-timeline-part-ids="${ids.slice(1).join(",")}"] [data-slot="collapsible-trigger"]`),
-  ).toHaveAttribute("aria-expanded", "true")
-})

packages/app/e2e/performance/timeline-stability/environment-matrix.spec.ts

@@ -9,6 +9,7 @@ import {
 import {
   assistantMessage,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   shell,
   textPart,
@@ -34,13 +35,16 @@ for (const deviceScaleFactor of [1, 1.25]) {
       seedHistory: true,
     })
     await waitForVisualSettle(page, [
-      `[data-timeline-part-id="${shellID}"]`,
-      `[data-timeline-part-id="${followingID}"]`,
+      `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
     ])
     const regions = defineVisualRegions({
-      shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+      shell: {
+        selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+        closest: '[data-timeline-row="AssistantPart"]',
+      },
       following: {
-        selector: `[data-timeline-part-id="${followingID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })
@@ -71,13 +75,16 @@ for (const reducedMotion of [true]) {
       seedHistory: true,
     })
     await waitForVisualSettle(page, [
-      `[data-timeline-part-id="${shellID}"]`,
-      `[data-timeline-part-id="${followingID}"]`,
+      `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
     ])
     const regions = defineVisualRegions({
-      shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+      shell: {
+        selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+        closest: '[data-timeline-row="AssistantPart"]',
+      },
       following: {
-        selector: `[data-timeline-part-id="${followingID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })

packages/app/e2e/performance/timeline-stability/file-matrix.spec.ts

@@ -9,6 +9,7 @@ import {
 import {
   assistantMessage,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   textPart,
   toolPart,
@@ -43,11 +44,17 @@ for (const profile of profiles) {
       settings: { editToolPartsExpanded: true },
       cpuRate: 4,
     })
-    await waitForVisualSettle(page, [`[data-timeline-part-id="${partID}"]`, `[data-timeline-part-id="${followingID}"]`])
+    await waitForVisualSettle(page, [
+      `[data-timeline-part-id="${renderedPartID(partID)}"]`,
+      `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+    ])
     const regions = defineVisualRegions({
-      tool: { selector: `[data-timeline-part-id="${partID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+      tool: {
+        selector: `[data-timeline-part-id="${renderedPartID(partID)}"]`,
+        closest: '[data-timeline-row="AssistantPart"]',
+      },
       following: {
-        selector: `[data-timeline-part-id="${followingID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })

packages/app/e2e/performance/timeline-stability/file-mutation.spec.ts

@@ -9,6 +9,7 @@ import {
 import {
   assistantMessage,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   textPart,
   toolPart,
@@ -35,12 +36,23 @@ test("adds patch files incrementally without resetting outer expansion", async (
     cpuRate: 4,
     seedHistory: true,
   })
-  const trigger = page.locator(`[data-timeline-part-id="${patchID}"] [data-slot="collapsible-trigger"]`).first()
+  const trigger = page
+    .locator(`[data-timeline-part-id="${renderedPartID(patchID)}"] [data-slot="collapsible-trigger"]`)
+    .first()
   await expect(trigger).toHaveAttribute("aria-expanded", "true")
-  await waitForVisualSettle(page, [`[data-timeline-part-id="${patchID}"]`, `[data-timeline-part-id="${followingID}"]`])
+  await waitForVisualSettle(page, [
+    `[data-timeline-part-id="${renderedPartID(patchID)}"]`,
+    `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+  ])
   const regions = defineVisualRegions({
-    patch: { selector: `[data-timeline-part-id="${patchID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    patch: {
+      selector: `[data-timeline-part-id="${renderedPartID(patchID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   const second = patchFile("src/b.ts", "add")

packages/app/e2e/performance/timeline-stability/fixture.test.ts

@@ -17,19 +17,28 @@ describe("timeline fixture validation", () => {
   test("rejects malformed SDK values at runtime", () => {
     expect(() =>
       assistantMessage([], {
-        error: { name: "APIError", data: { message: "failed" } } as never,
+        error: { type: "APIError", message: 1 } as never,
       }),
     ).toThrow()
     expect(() =>
       validateTimelineEvent({
-        directory: "C:/OpenCode/TimelineStability",
-        payload: {
-          id: "evt_invalid_status",
-          type: "session.status",
-          properties: { sessionID: "ses_timeline_stability", status: { type: "retry", attempt: 1 } },
-        },
+        id: "evt_invalid_status",
+        created: 1,
+        type: "session.status",
+        data: { sessionID: "ses_timeline_stability", status: { type: "retry", attempt: 1 } },
       }),
     ).toThrow()
+    expect(() => validateTimelineMessages([{ ...userMessage(), id: "invalid" } as never])).toThrow()
+    expect(() => validateTimelineMessages([{ ...userMessage(), time: { created: "invalid" } } as never])).toThrow()
+    expect(() =>
+      validateTimelineMessages([
+        userMessage(),
+        {
+          ...assistantMessage(),
+          content: [{ type: "tool", id: "call_invalid", name: "bash", state: { status: "completed" } }],
+        } as never,
+      ]),
+    ).toThrow()
   })
 
   test("rejects duplicate IDs and orphan assistants", () => {
@@ -42,8 +51,8 @@ describe("timeline fixture validation", () => {
   test("assigns deterministic event IDs", () => {
     const first = event("session.status", { sessionID: "ses_timeline_stability", status: { type: "busy" } })
     const second = event("session.status", { sessionID: "ses_timeline_stability", status: { type: "idle" } })
-    expect(first.payload.id).toMatch(/^evt_timeline_\d{4}$/)
-    expect(Number(second.payload.id.slice(-4))).toBe(Number(first.payload.id.slice(-4)) + 1)
+    expect(first.id).toMatch(/^evt_timeline_\d{4}$/)
+    expect(Number(second.id.slice(-4))).toBe(Number(first.id.slice(-4)) + 1)
   })
 })
 

packages/app/e2e/performance/timeline-stability/fixture.ts

@@ -1,9 +1,16 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
-import { Event } from "@opencode-ai/schema/event"
-import { SessionStatusEvent } from "@opencode-ai/schema/session-status-event"
-import { SessionV1 } from "@opencode-ai/schema/session-v1"
-import type { SessionInfo, SessionMessageInfo, SessionStatus } from "@opencode-ai/client/promise"
-import type { AssistantMessage, Message, Part, ToolPart, ToolState, UserMessage } from "../../../src/types"
+import { base64Encode } from "@opencode-ai/util/encode"
+import type {
+  JsonValue,
+  OpenCodeEvent,
+  SessionInfo,
+  SessionMessageAssistant,
+  SessionMessageInfo,
+  SessionMessageUser,
+  SessionStatus,
+  SessionStructuredError,
+} from "@opencode-ai/client/promise"
+import { EventManifest } from "@opencode-ai/schema/event-manifest"
+import { SessionMessage } from "@opencode-ai/schema/session-message"
 import { expect, type Page } from "@playwright/test"
 import { Schema } from "effect"
 import { mockOpenCodeServer } from "../../utils/mock-server"
@@ -18,50 +25,80 @@ export const assistantID = "msg_1001_timeline_assistant"
 export const title = "Timeline visual stability"
 export const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
 
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+const tokens = { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } }
+
 type Session = SessionInfo
-type GlobalEvent = {
-  directory: string
-  project?: string
-  workspace?: string
-  payload: {
-    id: string
-    type: string
-    properties: Record<string, unknown>
-  }
+type TextSeed = {
+  id: string
+  type: "text"
+  text: string
+  messageID?: string
+}
+type FileSeed = {
+  id: string
+  type: "file"
+  mime: string
+  filename?: string
+  url: string
+  source?: { type: string; path?: string; text?: { value: string; start: number; end: number } }
+}
+type AgentSeed = {
+  id: string
+  type: "agent"
+  name: string
+  source?: { value: string; start: number; end: number }
+}
+type ReasoningSeed = {
+  id: string
+  type: "reasoning"
+  text: string
+  time?: { start: number; end?: number }
+  metadata?: Record<string, unknown>
+  messageID?: string
+}
+type ToolSeed = {
+  id: string
+  type: "tool"
+  callID: string
+  tool: string
+  messageID?: string
+  executed?: boolean
+  providerState?: Record<string, unknown>
+  providerResultState?: Record<string, unknown>
+  state:
+    | { status: "pending"; input: Record<string, unknown>; raw: string }
+    | {
+        status: "running"
+        input: Record<string, unknown>
+        title?: string
+        metadata: Record<string, unknown>
+        time: { start: number }
+      }
+    | {
+        status: "completed"
+        input: Record<string, unknown>
+        output: string
+        title: string
+        metadata: Record<string, unknown>
+        time: { start: number; end: number }
+      }
+    | {
+        status: "error"
+        input: Record<string, unknown>
+        error: string
+        metadata: Record<string, unknown>
+        time: { start: number; end: number }
+      }
 }
 
-type TimelineProperties = {
-  "message.updated": { sessionID: string; info: Message }
-  "message.removed": { sessionID: string; messageID: string }
-  "message.part.updated": { sessionID: string; part: Part; time: number }
-  "message.part.removed": { sessionID: string; messageID: string; partID: string }
-  "message.part.delta": { sessionID: string; messageID: string; partID: string; field: string; delta: string }
-  "session.status": { sessionID: string; status: SessionStatus }
-}
-type TimelinePayload = {
-  [Type in keyof TimelineProperties]: { id: string; type: Type; properties: TimelineProperties[Type] }
-}[keyof TimelineProperties]
-
-type DeepReadonly<Value> = Value extends readonly unknown[]
-  ? { readonly [Key in keyof Value]: DeepReadonly<Value[Key]> }
-  : Value extends object
-    ? { readonly [Key in keyof Value]: DeepReadonly<Value[Key]> }
-    : Value
-
-export type TimelineEvent = DeepReadonly<Omit<GlobalEvent, "payload"> & { payload: TimelinePayload }>
-export type EventPayload = TimelineEvent
-export type ToolStatus = ToolState["status"]
-export type TimelineMessage = { info: UserMessage; parts: Part[] } | { info: AssistantMessage; parts: Part[] }
-
-type UserPart = Extract<Part, { type: "text" | "file" | "agent" | "subtask" }>
-type AssistantPart = Exclude<Part, { type: "agent" | "subtask" }>
-type OwnedPart<Owner extends Message["role"]> = Owner extends "user" ? UserPart : AssistantPart
-export type PartSeed<Owner extends Message["role"]> =
-  OwnedPart<Owner> extends infer Candidate
-    ? Candidate extends Part
-      ? Omit<Candidate, "sessionID" | "messageID">
-      : never
-    : never
+export type TimelineMessage = SessionMessageUser | SessionMessageAssistant
+export type TimelineEvent = OpenCodeEvent | readonly OpenCodeEvent[]
+export type EventPayload = OpenCodeEvent
+export type ToolStatus = ToolSeed["state"]["status"]
+export type PartSeed<Owner extends "user" | "assistant"> = Owner extends "user"
+  ? TextSeed | FileSeed | AgentSeed
+  : TextSeed | ReasoningSeed | ToolSeed
 
 type ToolOptions<State extends ToolStatus> = State extends "pending"
   ? { output?: never; title?: never; metadata?: never; error?: never }
@@ -71,26 +108,19 @@ type ToolOptions<State extends ToolStatus> = State extends "pending"
       ? { error?: string; metadata?: Record<string, unknown>; output?: never; title?: never }
       : { output?: string; title?: string; metadata?: Record<string, unknown>; error?: never }
 
-const decodeOptions = { errors: "all", onExcessProperty: "error" } as const
-const decodeMessage = Schema.decodeUnknownSync(SessionV1.WithParts)
-const decodePart = Schema.decodeUnknownSync(SessionV1.Part)
-const decodeStatus = Schema.decodeUnknownSync(SessionStatusEvent.Info)
-const timelineEventSchema = Schema.Union([
-  eventSchema("message.updated", SessionV1.Event.MessageUpdated.data),
-  eventSchema("message.removed", SessionV1.Event.MessageRemoved.data),
-  eventSchema("message.part.updated", SessionV1.Event.PartUpdated.data),
-  eventSchema("message.part.removed", SessionV1.Event.PartRemoved.data),
-  eventSchema("message.part.delta", SessionV1.Event.PartDelta.data),
-  eventSchema("session.status", SessionStatusEvent.Status.data),
-])
-const decodeEvent = Schema.decodeUnknownSync(timelineEventSchema)
+type PartRef = { messageID: string; type: "text" | "reasoning" | "tool"; ordinal?: number }
+const partRefs = new Map<string, PartRef>()
+const nextOrdinals = new Map<string, { text: number; reasoning: number }>()
+const startedParts = new Set<string>()
+const toolStates = new Map<string, ToolStatus>()
 let eventSequence = 0
+let durableSequence = -1
 
 export async function setupTimeline(
   page: Page,
   input: {
     messages?: TimelineMessage[]
-    currentMessages?: SessionMessageInfo[]
+    sessionMessages?: SessionMessageInfo[]
     sessionStatus?: Record<string, SessionStatus>
     settings?: Record<string, boolean>
     sessions?: Session[]
@@ -103,40 +133,26 @@ export async function setupTimeline(
     seedHistory?: boolean
   } = {},
 ) {
+  eventSequence = 0
+  durableSequence = -1
   const sessions = input.sessions ?? [session()]
   const messages =
-    input.currentMessages ??
+    input.sessionMessages ??
     validateTimelineMessages([
       ...(input.seedHistory ? historyMessages(18) : []),
       ...(input.messages ?? [userMessage(), assistantMessage()]),
     ])
-  const active = messages.findLast((message) =>
-    "info" in message ? message.info.role === "assistant" : message.type === "assistant",
-  )
-  const initialStatus = decodeStatus(
-    active &&
-      ("info" in active
-        ? active.info.role === "assistant" && active.info.time.completed === undefined
-        : active.type === "assistant" && active.time.completed === undefined)
-      ? { type: "busy" }
-      : { type: "idle" },
-    decodeOptions,
-  )
-  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
-  const transport = await installSseTransport<EventPayload>(page, {
-    server,
-    retry: input.eventRetry ?? 20,
-  })
+  const active = messages.findLast((message) => message.type === "assistant")
+  const initialStatus: SessionStatus =
+    active?.type === "assistant" && active.time.completed === undefined ? { type: "busy" } : { type: "idle" }
+  const transport = await installSseTransport(page, { server, retry: input.eventRetry ?? 20 })
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: project(),
     provider: provider(),
     sessions,
     sessionStatus: input.sessionStatus ?? { [sessionID]: initialStatus },
-    pageMessages: () => ({
-      items: messages,
-    }),
+    pageMessages: () => ({ items: messages }),
   })
   await page.addInitScript((settings) => {
     localStorage.setItem(
@@ -151,9 +167,6 @@ export async function setupTimeline(
         },
       }),
     )
-    if (settings.newLayoutDesigns === false) {
-      localStorage.setItem("app-version.v1", JSON.stringify({ version: "1.17.20" }))
-    }
   }, input.settings ?? {})
   if (input.locale) {
     await page.addInitScript((locale) => {
@@ -172,7 +185,7 @@ export async function setupTimeline(
       mobile: false,
     })
   }
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionReady(page, { server, sessionID, title })
   await transport.waitForConnection()
   if (input.cpuRate && input.cpuRate > 1) {
@@ -182,15 +195,25 @@ export async function setupTimeline(
 
   return {
     transport,
-    async send(event: TimelineEvent, delay = 0) {
-      const valid = validateTimelineEvent(event)
-      await transport.send(valid, { marker: describeEvent(valid) })
+    async send(input: TimelineEvent, delay = 0) {
+      const events = timelineEvents(input)
+      if (events.length === 1) await transport.send(events[0]!, { marker: describeEvent(events[0]!) })
+      if (events.length > 1)
+        await transport.burst(
+          events,
+          events.map((item) => ({ marker: describeEvent(item) })),
+        )
       if (delay) await page.waitForTimeout(delay)
     },
     async sendAll(sequence: { event: TimelineEvent; delay: number }[]) {
       for (const item of sequence) {
-        const valid = validateTimelineEvent(item.event)
-        await transport.send(valid, { marker: describeEvent(valid) })
+        const events = timelineEvents(item.event)
+        if (events.length === 1) await transport.send(events[0]!, { marker: describeEvent(events[0]!) })
+        if (events.length > 1)
+          await transport.burst(
+            events,
+            events.map((event) => ({ marker: describeEvent(event) })),
+          )
         await page.waitForTimeout(item.delay)
       }
     },
@@ -210,72 +233,63 @@ export async function setupTimeline(
       )
     },
     async waitForPart(partID: string) {
-      const part = page.locator(`[data-timeline-part-id="${partID}"]`)
+      const part = page.locator(`[data-timeline-part-id="${renderedPartID(partID)}"]`)
       await expect(part).toHaveCount(1)
       await expect(part).toBeVisible()
     },
   }
 }
 
-function describeEvent(event: EventPayload) {
-  if (event.payload.type === "message.part.updated") {
-    const part = event.payload.properties.part
-    return [
-      event.payload.type,
-      part.id,
-      part.type === "tool" ? part.tool : part.type,
-      part.type === "tool" ? part.state.status : undefined,
-    ]
-      .filter(Boolean)
-      .join(":")
-  }
-  if (event.payload.type === "session.status") {
-    const status = event.payload.properties.status
-    return [event.payload.type, status.type, status.type === "retry" ? status.attempt : undefined]
-      .filter((value) => value !== undefined)
-      .join(":")
-  }
-  return event.payload.type
+function timelineEvents(input: TimelineEvent) {
+  return (Array.isArray(input) ? input : [input]).map(validateTimelineEvent)
 }
 
-export function event<const Type extends TimelinePayload["type"]>(
-  type: Type,
-  properties: Extract<TimelinePayload, { type: Type }>["properties"],
-): TimelineEvent
-export function event(type: TimelinePayload["type"], properties: TimelinePayload["properties"]): TimelineEvent {
-  return validateTimelineEvent({
-    directory,
-    payload: { id: `evt_timeline_${String(++eventSequence).padStart(4, "0")}`, type, properties },
-  })
+function describeEvent(event: OpenCodeEvent) {
+  if (event.type.startsWith("session.tool.")) {
+    const data = event.data as { id?: string }
+    return [event.type, data.id].filter(Boolean).join(":")
+  }
+  return event.type
 }
 
-export function validateTimelineEvent(input: unknown): TimelineEvent {
-  return decodeEvent(input, decodeOptions) as TimelineEvent
+export function event(
+  type: "session.status",
+  data: Extract<OpenCodeEvent, { type: "session.status" }>["data"],
+): OpenCodeEvent {
+  return makeEvent(type, data)
+}
+
+export function validateTimelineEvent(input: unknown): OpenCodeEvent {
+  if (!input || typeof input !== "object") throw new Error("Timeline event must be an object")
+  if (!("type" in input) || typeof input.type !== "string") throw new Error("Timeline event requires a type")
+  const definition = EventManifest.ServerDefinitions.find((definition) => definition.type === input.type)
+  if (!definition) throw new Error(`Unknown timeline event: ${input.type}`)
+  return Schema.decodeUnknownSync(definition)(input) as OpenCodeEvent
 }
 
 export function validateTimelineMessages(input: readonly TimelineMessage[]): TimelineMessage[] {
-  input.forEach((message) => decodeMessage(message, decodeOptions))
-  const messages = [...input]
+  const messages = input.map((message): TimelineMessage => {
+    const decoded = Schema.decodeUnknownSync(SessionMessage.Info)(message)
+    if (decoded.type !== "user" && decoded.type !== "assistant")
+      throw new Error(`Unsupported timeline message type: ${decoded.type}`)
+    return message
+  })
   const messageIDs = new Set<string>()
-  const partIDs = new Set<string>()
-  const users = new Set(messages.filter((message) => message.info.role === "user").map((message) => message.info.id))
-
+  let parentID: string | undefined
   messages.forEach((message) => {
-    if (messageIDs.has(message.info.id))
-      throw new Error(`Timeline fixture has duplicate message ID: ${message.info.id}`)
-    messageIDs.add(message.info.id)
-    if (message.info.role === "assistant" && !users.has(message.info.parentID))
-      throw new Error(`Timeline assistant ${message.info.id} must reference a parent user in the fixture`)
-    message.parts.forEach((part) => {
-      if (part.sessionID !== message.info.sessionID || part.messageID !== message.info.id)
-        throw new Error(`Timeline part ${part.id} ownership does not match message ${message.info.id}`)
-      if (message.info.role === "user" && !["text", "file", "agent", "subtask"].includes(part.type))
-        throw new Error(`Timeline user message ${message.info.id} cannot own ${part.type} part ${part.id}`)
-      if (message.info.role === "assistant" && ["agent", "subtask"].includes(part.type))
-        throw new Error(`Timeline assistant message ${message.info.id} cannot own ${part.type} part ${part.id}`)
-      if (partIDs.has(part.id)) throw new Error(`Timeline fixture has duplicate part ID: ${part.id}`)
-      partIDs.add(part.id)
-    })
+    if (messageIDs.has(message.id)) throw new Error(`Timeline fixture has duplicate message ID: ${message.id}`)
+    messageIDs.add(message.id)
+    if (message.type === "user") parentID = message.id
+    if (message.type === "assistant") {
+      const expected = typeof message.metadata?.parentID === "string" ? message.metadata.parentID : parentID
+      if (!expected || expected !== parentID)
+        throw new Error(`Timeline assistant ${message.id} must reference a parent user in the fixture`)
+      message.content.forEach((part) => {
+        if (part.type !== "tool") return
+        if (partRefs.has(part.id) && partRefs.get(part.id)?.messageID !== message.id)
+          throw new Error(`Timeline fixture has duplicate part ID: ${part.id}`)
+      })
+    }
   })
   return messages
 }
@@ -337,55 +351,146 @@ export function historyMessages(count: number): TimelineMessage[] {
   }).flat()
 }
 
-export function partUpdated(part: Part | PartSeed<"assistant">) {
-  const owned = "messageID" in part ? part : { ...part, sessionID, messageID: assistantID }
-  decodePart(owned, decodeOptions)
-  return event("message.part.updated", {
-    sessionID,
-    part: owned,
-    time: 1700000002000,
-  })
+export function partUpdated(part: PartSeed<"assistant">): readonly OpenCodeEvent[] {
+  const messageID = part.messageID ?? assistantID
+  const started = startedParts.has(part.id)
+  const ref = partRef(part.id, messageID, part.type)
+  if (part.type === "text") {
+    startedParts.add(part.id)
+    return [
+      ...(started
+        ? []
+        : [makeEvent("session.text.started", { sessionID, assistantMessageID: messageID, ordinal: ref.ordinal! })]),
+      makeEvent("session.text.ended", {
+        sessionID,
+        assistantMessageID: messageID,
+        ordinal: ref.ordinal!,
+        text: part.text,
+      }),
+    ]
+  }
+  if (part.type === "reasoning") {
+    startedParts.add(part.id)
+    return [
+      ...(started
+        ? []
+        : [
+            makeEvent("session.reasoning.started", {
+              sessionID,
+              assistantMessageID: messageID,
+              ordinal: ref.ordinal!,
+              state: jsonRecord(part.metadata),
+            }),
+          ]),
+      makeEvent("session.reasoning.ended", {
+        sessionID,
+        assistantMessageID: messageID,
+        ordinal: ref.ordinal!,
+        text: part.text,
+        state: jsonRecord(part.metadata),
+      }),
+    ]
+  }
+  return toolEvents(part, messageID)
+}
+
+export function renderedPartID(partID: string) {
+  const ref = partRefs.get(partID)
+  if (!ref || ref.type === "tool") return partID
+  return `${ref.messageID}:${ref.type}:${ref.ordinal}`
 }
 
 export function partDelta(partID: string, delta: string, messageID = assistantID) {
-  return event("message.part.delta", { sessionID, messageID, partID, field: "text", delta })
+  const ref = partRefs.get(partID)
+  if (!ref || ref.type !== "text" || ref.ordinal === undefined) throw new Error(`Unknown text part: ${partID}`)
+  return makeEvent("session.text.delta", {
+    sessionID,
+    assistantMessageID: messageID,
+    ordinal: ref.ordinal,
+    delta,
+  })
 }
 
-export function messageUpdated(info: Message) {
-  return event("message.updated", { sessionID, info })
+export function messageUpdated(info: SessionMessageAssistant) {
+  if (info.error)
+    return makeEvent("session.step.failed", {
+      sessionID,
+      assistantMessageID: info.id,
+      error: info.error,
+      cost: info.cost,
+      tokens: info.tokens,
+    })
+  return makeEvent("session.step.ended", {
+    sessionID,
+    assistantMessageID: info.id,
+    finish: info.finish ?? "stop",
+    cost: info.cost ?? 0,
+    tokens: info.tokens ?? tokens,
+  })
 }
 
 export function status(type: SessionStatus["type"], attempt = 1) {
-  return event("session.status", {
+  if (type === "busy") return makeEvent("session.execution.started", { sessionID })
+  if (type === "idle") return makeEvent("session.execution.succeeded", { sessionID })
+  return makeEvent("session.retry.scheduled", {
     sessionID,
-    status: type === "retry" ? { type, attempt, message: "Rate limited", next: 1700000010000 } : { type },
+    assistantMessageID: assistantID,
+    attempt,
+    at: 1700000010000,
+    error: { type: "provider.error", message: "Rate limited" },
+  })
+}
+
+export function stepStarted(message: SessionMessageAssistant) {
+  return makeEvent("session.step.started", {
+    sessionID,
+    assistantMessageID: message.id,
+    agent: message.agent,
+    model: message.model,
   })
 }
 
 export function userMessage(
   parts?: PartSeed<"user">[],
-  input: { id?: string; summary?: UserMessage["summary"]; created?: number } = {},
-): Extract<TimelineMessage, { info: { role: "user" } }> {
+  input: { id?: string; summary?: unknown; created?: number } = {},
+): SessionMessageUser {
   const id = input.id ?? userID
   const seeds = parts ?? [userText("Build the timeline stability matrix.", { id: `prt_${id}_text` })]
-  const message = {
-    info: {
-      id,
-      sessionID,
-      role: "user",
-      time: { created: input.created ?? 1700000000000 },
-      summary: input.summary ?? { diffs: [] },
-      agent: "build",
-      model,
-    },
-    parts: seeds.map((part) => ({
-      ...part,
-      sessionID,
-      messageID: id,
-    })),
-  } satisfies Extract<TimelineMessage, { info: { role: "user" } }>
-  decodeMessage(message, decodeOptions)
-  return message
+  return {
+    id,
+    type: "user",
+    time: { created: input.created ?? 1700000000000 },
+    text: seeds.flatMap((part) => (part.type === "text" ? [part.text] : [])).join("\n"),
+    files: seeds.flatMap((part) => {
+      if (part.type !== "file") return []
+      const mention = part.source?.text
+        ? { text: part.source.text.value, start: part.source.text.start, end: part.source.text.end }
+        : undefined
+      return [
+        {
+          data: part.url.match(/^data:[^,]*;base64,(.*)$/)?.[1] ?? "",
+          mime: part.mime,
+          source: part.url.startsWith("data:")
+            ? ({ type: "inline" } as const)
+            : ({ type: "uri", uri: part.source?.path ?? part.url } as const),
+          ...(part.filename ? { name: part.filename } : {}),
+          ...(mention ? { mention } : {}),
+        },
+      ]
+    }),
+    agents: seeds.flatMap((part) => {
+      if (part.type !== "agent") return []
+      return [
+        {
+          name: part.name,
+          ...(part.source
+            ? { mention: { text: part.source.value, start: part.source.start, end: part.source.end } }
+            : {}),
+        },
+      ]
+    }),
+    ...(input.summary === undefined ? {} : { metadata: { summary: input.summary as JsonValue } }),
+  }
 }
 
 export function assistantMessage(
@@ -394,49 +499,43 @@ export function assistantMessage(
     id?: string
     parentID?: string
     completed?: boolean
-    error?: AssistantMessage["error"]
+    error?: SessionStructuredError
     created?: number
   } = {},
-): Extract<TimelineMessage, { info: { role: "assistant" } }> {
+): SessionMessageAssistant {
+  if (input.error && (typeof input.error.type !== "string" || typeof input.error.message !== "string"))
+    throw new Error("Invalid assistant error")
   const id = input.id ?? assistantID
-  const message = {
-    info: {
-      id,
-      sessionID,
-      role: "assistant",
-      time: {
-        created: input.created ?? 1700000001000,
-        ...(input.completed === false ? {} : { completed: (input.created ?? 1700000001000) + 1_000 }),
-      },
-      parentID: input.parentID ?? userID,
-      modelID: model.modelID,
-      providerID: model.providerID,
-      mode: "build",
-      agent: "build",
-      path: { cwd: directory, root: directory },
-      cost: 0.01,
-      tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-      variant: "max",
-      ...(input.error ? { error: input.error } : {}),
-    },
-    parts: parts.map((part) => ({ ...part, sessionID, messageID: id })),
-  } satisfies Extract<TimelineMessage, { info: { role: "assistant" } }>
-  decodeMessage(message, decodeOptions)
-  return message
+  const created = input.created ?? 1700000001000
+  const ordinals = { text: 0, reasoning: 0 }
+  const content = parts.map((part) => messageContent(part, id, ordinals))
+  nextOrdinals.set(id, ordinals)
+  return {
+    id,
+    type: "assistant",
+    metadata: { parentID: input.parentID ?? userID },
+    time: { created, ...(input.completed === false ? {} : { completed: created + 1_000 }) },
+    model: { id: model.modelID, providerID: model.providerID, variant: model.variant },
+    agent: "build",
+    content,
+    cost: 0.01,
+    tokens,
+    ...(input.completed === false ? {} : { finish: "stop" as const }),
+    ...(input.error ? { error: input.error } : {}),
+  }
 }
 
-export function userText(
-  text: string,
-  input: Partial<Omit<Extract<PartSeed<"user">, { type: "text" }>, "type" | "text">> = {},
-): Extract<PartSeed<"user">, { type: "text" }> {
+export function userText(text: string, input: Partial<Omit<TextSeed, "type" | "text">> = {}): TextSeed {
   return { id: "prt_user_text", type: "text", text, ...input }
 }
 
-export function textPart(id: string, text: string): Extract<PartSeed<"assistant">, { type: "text" }> {
+export function textPart(id: string, text: string): TextSeed {
+  partRef(id, assistantID, "text")
   return { id, type: "text", text }
 }
 
-export function reasoningPart(id: string, text: string): Extract<PartSeed<"assistant">, { type: "reasoning" }> {
+export function reasoningPart(id: string, text: string): ReasoningSeed {
+  partRef(id, assistantID, "reasoning")
   return { id, type: "reasoning", text, time: { start: 1700000001000 } }
 }
 
@@ -446,35 +545,35 @@ export function toolPart(
   state: "pending",
   input: Record<string, unknown>,
   options?: ToolOptions<"pending">,
-): Omit<ToolPart, "sessionID" | "messageID">
+): ToolSeed
 export function toolPart(
   id: string,
   tool: string,
   state: "running",
   input: Record<string, unknown>,
   options?: ToolOptions<"running">,
-): Omit<ToolPart, "sessionID" | "messageID">
+): ToolSeed
 export function toolPart(
   id: string,
   tool: string,
   state: "completed",
   input: Record<string, unknown>,
   options?: ToolOptions<"completed">,
-): Omit<ToolPart, "sessionID" | "messageID">
+): ToolSeed
 export function toolPart(
   id: string,
   tool: string,
   state: "error",
   input: Record<string, unknown>,
   options?: ToolOptions<"error">,
-): Omit<ToolPart, "sessionID" | "messageID">
+): ToolSeed
 export function toolPart(
   id: string,
   tool: string,
   state: ToolStatus,
   input: Record<string, unknown>,
   options: ToolOptions<ToolStatus> = {},
-): Omit<ToolPart, "sessionID" | "messageID"> {
+): ToolSeed {
   const base = { id, type: "tool" as const, callID: id, tool }
   if (state === "pending") return { ...base, state: { status: state, input, raw: "" } }
   if (state === "running")
@@ -512,12 +611,7 @@ export function toolPart(
   }
 }
 
-export function shell(
-  id: string,
-  state: ToolStatus,
-  output = "",
-  command = `echo ${id}`,
-): Omit<ToolPart, "sessionID" | "messageID"> {
+export function shell(id: string, state: ToolStatus, output = "", command = `echo ${id}`): ToolSeed {
   if (state === "pending") return toolPart(id, "bash", state, { command })
   if (state === "running")
     return toolPart(id, "bash", state, { command }, { title: command, metadata: { command, output } })
@@ -526,7 +620,7 @@ export function shell(
   return toolPart(id, "bash", state, { command }, { title: command, output, metadata: { command, output } })
 }
 
-export function completedAssistantInfo(info: AssistantMessage): AssistantMessage {
+export function completedAssistantInfo(info: SessionMessageAssistant): SessionMessageAssistant {
   return { ...info, time: { ...info.time, completed: 1700000003000 } }
 }
 
@@ -554,16 +648,200 @@ export function session(input: Partial<Session> = {}): Session {
   }
 }
 
-function eventSchema<
-  const Type extends TimelinePayload["type"],
-  const Properties extends Schema.Codec<unknown, unknown>,
->(type: Type, properties: Properties) {
-  return Schema.Struct({
-    directory: Schema.String,
-    project: Schema.optional(Schema.String),
-    workspace: Schema.optional(Schema.String),
-    payload: Schema.Struct({ id: Event.ID, type: Schema.Literal(type), properties }),
-  })
+function messageContent(
+  part: PartSeed<"assistant">,
+  messageID: string,
+  ordinals: { text: number; reasoning: number },
+): SessionMessageAssistant["content"][number] {
+  if (part.type === "tool") {
+    partRefs.set(part.id, { messageID, type: part.type })
+    toolStates.set(part.callID, part.state.status)
+  } else {
+    partRefs.set(part.id, { messageID, type: part.type, ordinal: ordinals[part.type]++ })
+    startedParts.add(part.id)
+  }
+  if (part.type === "text") return { type: "text", text: part.text }
+  if (part.type === "reasoning")
+    return {
+      type: "reasoning",
+      text: part.text,
+      state: jsonRecord(part.metadata),
+      time: part.time
+        ? { created: part.time.start, ...(part.time.end === undefined ? {} : { completed: part.time.end }) }
+        : undefined,
+    }
+  const state = part.state
+  const time = "time" in state ? state.time : undefined
+  const completed = state.status === "completed" || state.status === "error" ? state.time.end : undefined
+  const base = {
+    type: "tool" as const,
+    id: part.callID,
+    name: part.tool,
+    time: {
+      created: time?.start ?? 1700000001000,
+      ...(time?.start === undefined ? {} : { ran: time.start }),
+      ...(completed === undefined ? {} : { completed }),
+    },
+    ...(part.executed === undefined ? {} : { executed: part.executed }),
+    ...(part.providerState ? { providerState: jsonRecord(part.providerState) } : {}),
+    ...(part.providerResultState ? { providerResultState: jsonRecord(part.providerResultState) } : {}),
+  }
+  if (state.status === "pending") return { ...base, state: { status: "streaming", input: state.raw } }
+  if (state.status === "running")
+    return {
+      ...base,
+      state: { status: "running", input: jsonRecord(state.input), metadata: jsonRecord(state.metadata) },
+    }
+  if (state.status === "error")
+    return {
+      ...base,
+      state: {
+        status: "error",
+        input: jsonRecord(state.input),
+        error: { type: "ToolError", message: state.error },
+        metadata: jsonRecord(state.metadata),
+      },
+    }
+  return {
+    ...base,
+    state: {
+      status: "completed",
+      input: jsonRecord(state.input),
+      content: [{ type: "text", text: state.output }],
+      metadata: jsonRecord(state.metadata),
+    },
+  }
+}
+
+function toolEvents(part: ToolSeed, messageID: string): readonly OpenCodeEvent[] {
+  const previous = toolStates.get(part.callID)
+  if (previous === "completed" || previous === "error") return []
+
+  const events: OpenCodeEvent[] = []
+  if (!previous) {
+    events.push(
+      makeEvent("session.tool.input.started", {
+        sessionID,
+        assistantMessageID: messageID,
+        id: part.callID,
+        name: part.tool,
+      }),
+    )
+  }
+  if (part.state.status === "pending") {
+    toolStates.set(part.callID, part.state.status)
+    return events
+  }
+  if (!previous || previous === "pending") {
+    events.push(
+      makeEvent("session.tool.input.ended", {
+        sessionID,
+        assistantMessageID: messageID,
+        id: part.callID,
+        text: JSON.stringify(part.state.input),
+      }),
+      makeEvent("session.tool.called", {
+        sessionID,
+        assistantMessageID: messageID,
+        id: part.callID,
+        input: part.state.input,
+        executed: part.executed ?? true,
+        state: jsonRecord(part.providerState),
+      }),
+    )
+  }
+  if (part.state.status === "running") {
+    if (previous === "running" || Object.keys(part.state.metadata).length)
+      events.push(
+        makeEvent("session.tool.progress", {
+          sessionID,
+          assistantMessageID: messageID,
+          id: part.callID,
+          metadata: jsonRecord(part.state.metadata),
+        }),
+      )
+    toolStates.set(part.callID, part.state.status)
+    return events
+  }
+  if (part.state.status === "error") {
+    events.push(
+      makeEvent("session.tool.failed", {
+        sessionID,
+        assistantMessageID: messageID,
+        id: part.callID,
+        error: { type: "ToolError", message: part.state.error },
+        metadata: jsonRecord(part.state.metadata),
+        executed: part.executed ?? true,
+        resultState: jsonRecord(part.providerResultState),
+      }),
+    )
+    toolStates.set(part.callID, part.state.status)
+    return events
+  }
+  events.push(
+    makeEvent("session.tool.success", {
+      sessionID,
+      assistantMessageID: messageID,
+      id: part.callID,
+      content: [{ type: "text", text: part.state.output }],
+      metadata: jsonRecord(part.state.metadata),
+      executed: part.executed ?? true,
+      resultState: jsonRecord(part.providerResultState),
+    }),
+  )
+  toolStates.set(part.callID, part.state.status)
+  return events
+}
+
+function partRef(id: string, messageID: string, type: PartRef["type"]): PartRef {
+  const current = partRefs.get(id)
+  if (current) return current
+  if (type === "tool") {
+    const ref = { messageID, type } satisfies PartRef
+    partRefs.set(id, ref)
+    return ref
+  }
+  const next = nextOrdinals.get(messageID) ?? { text: 0, reasoning: 0 }
+  const ref = { messageID, type, ordinal: next[type]++ } satisfies PartRef
+  nextOrdinals.set(messageID, next)
+  partRefs.set(id, ref)
+  return ref
+}
+
+function makeEvent<Type extends OpenCodeEvent["type"]>(
+  type: Type,
+  data: Extract<OpenCodeEvent, { type: Type }>["data"],
+): OpenCodeEvent {
+  const id = `evt_timeline_${String(++eventSequence).padStart(4, "0")}`
+  const base = { id, created: 1700000002000 + eventSequence, type, data, location: { directory } }
+  const definition = EventManifest.ServerDefinitions.find((definition) => definition.type === type)
+  if (!definition) throw new Error(`Unknown timeline event: ${type}`)
+  const input =
+    definition.durability === "durable"
+      ? {
+          ...base,
+          durable: { aggregateID: sessionID, seq: ++durableSequence, version: definition.durable.version },
+        }
+      : base
+  return Schema.decodeUnknownSync(definition)(input) as unknown as OpenCodeEvent
+}
+
+function jsonRecord(value: Record<string, unknown> | undefined): Record<string, JsonValue> {
+  if (!value) return {}
+  return Object.fromEntries(
+    Object.entries(value).flatMap(([key, item]) => {
+      const next = jsonValue(item)
+      return next === undefined ? [] : [[key, next]]
+    }),
+  )
+}
+
+function jsonValue(value: unknown): JsonValue | undefined {
+  if (value === null || typeof value === "string" || typeof value === "boolean") return value
+  if (typeof value === "number") return Number.isFinite(value) ? value : null
+  if (Array.isArray(value)) return value.map((item) => jsonValue(item) ?? null)
+  if (!value || typeof value !== "object") return
+  return jsonRecord(value as Record<string, unknown>)
 }
 
 function provider() {

packages/app/e2e/performance/timeline-stability/interaction.spec.ts

@@ -6,7 +6,16 @@ import {
   stopVisualProbe,
   visualPlan,
 } from "../../utils/visual-stability"
-import { assistantMessage, setupTimeline, shell, textPart, toolPart, userMessage, waitForVisualSettle } from "./fixture"
+import {
+  assistantMessage,
+  renderedPartID,
+  setupTimeline,
+  shell,
+  textPart,
+  toolPart,
+  userMessage,
+  waitForVisualSettle,
+} from "./fixture"
 
 test("expands and collapses a long completed shell without overlap", async ({ page }, testInfo) => {
   const shellID = "prt_interaction_01_shell"
@@ -20,11 +29,20 @@ test("expands and collapses a long completed shell without overlap", async ({ pa
     cpuRate: 4,
     seedHistory: true,
   })
-  const trigger = page.locator(`[data-timeline-part-id="${shellID}"] [data-slot="collapsible-trigger"]`)
-  await waitForVisualSettle(page, [`[data-timeline-part-id="${shellID}"]`, `[data-timeline-part-id="${followingID}"]`])
+  const trigger = page.locator(`[data-timeline-part-id="${renderedPartID(shellID)}"] [data-slot="collapsible-trigger"]`)
+  await waitForVisualSettle(page, [
+    `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+    `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+  ])
   const regions = defineVisualRegions({
-    shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    shell: {
+      selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   const plan = visualPlan(regions, [
     { type: "required", regions: ["shell", "following"] },
@@ -76,7 +94,7 @@ test("expands and collapses a completed context group without overlap", async ({
     seedHistory: true,
   })
   const trigger = page.locator(`${group} [data-slot="collapsible-trigger"]`)
-  await waitForVisualSettle(page, [group, `[data-timeline-part-id="${followingID}"]`])
+  await waitForVisualSettle(page, [group, `[data-timeline-part-id="${renderedPartID(followingID)}"]`])
   for (const [name, expanded] of [
     ["context-expand", true],
     ["context-collapse", false],
@@ -85,7 +103,7 @@ test("expands and collapses a completed context group without overlap", async ({
     const regions = defineVisualRegions({
       context: { selector: group, closest: '[data-timeline-row="AssistantPart"]' },
       following: {
-        selector: `[data-timeline-part-id="${followingID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })
@@ -144,11 +162,22 @@ test("expands and collapses an edit diff without moving twice", async ({ page },
     cpuRate: 4,
     seedHistory: true,
   })
-  const trigger = page.locator(`[data-timeline-part-id="${editID}"] [data-slot="collapsible-trigger"]`).first()
-  await waitForVisualSettle(page, [`[data-timeline-part-id="${editID}"]`, `[data-timeline-part-id="${followingID}"]`])
+  const trigger = page
+    .locator(`[data-timeline-part-id="${renderedPartID(editID)}"] [data-slot="collapsible-trigger"]`)
+    .first()
+  await waitForVisualSettle(page, [
+    `[data-timeline-part-id="${renderedPartID(editID)}"]`,
+    `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+  ])
   const regions = defineVisualRegions({
-    edit: { selector: `[data-timeline-part-id="${editID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    edit: {
+      selector: `[data-timeline-part-id="${renderedPartID(editID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await trigger.click()
@@ -173,64 +202,6 @@ test("expands and collapses an edit diff without moving twice", async ({ page },
   )
 })
 
-test("shows all and expands historical diff summary without overlap", async ({ page }, testInfo) => {
-  const firstUser = userMessage(undefined, {
-    summary: {
-      diffs: Array.from({ length: 12 }, (_, index) => ({
-        file: `src/diff-${index}.ts`,
-        status: "modified",
-        additions: 1,
-        deletions: 1,
-        patch: `@@ -1 +1 @@\n-export const value = ${index}\n+export const value = ${index + 1}`,
-      })),
-    },
-  })
-  const nextUserID = "msg_2000_diff_interaction_user"
-  await setupTimeline(page, {
-    messages: [
-      firstUser,
-      assistantMessage(),
-      userMessage(undefined, { id: nextUserID, created: 1700000010000 }),
-      assistantMessage([], {
-        id: "msg_2001_diff_interaction_assistant",
-        parentID: nextUserID,
-        created: 1700000011000,
-      }),
-    ],
-    cpuRate: 4,
-  })
-  const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-  await scroller.evaluate((element) => (element.scrollTop = 0))
-  const diff = page.locator('[data-timeline-row="DiffSummary"]')
-  const following = page.locator(`[data-message-id="${nextUserID}"]`).first()
-  await expect(diff).toBeVisible()
-  const regions = defineVisualRegions({
-    diff: { selector: '[data-timeline-row="DiffSummary"]' },
-    following: { selector: `[data-message-id="${nextUserID}"]` },
-  })
-  await startVisualProbe(page, regions)
-  await page.getByText(/show all/i).click()
-  await page.waitForTimeout(500)
-  await diff.locator('[data-slot="session-turn-diff-trigger"]').first().click()
-  await page.waitForTimeout(900)
-  const trace = await stopVisualProbe<keyof typeof regions>(page)
-  await reportVisualStability(
-    testInfo,
-    "diff-summary-expand",
-    trace,
-    visualPlan(regions, [
-      { type: "required", regions: ["diff", "following"] },
-      { type: "unique", regions: ["diff", "following"] },
-      { type: "stable", regions: ["diff", "following"] },
-      { type: "opacity", regions: "all" },
-      { type: "continuity", regions: "all" },
-      { type: "motion", regions: "all", maxPositionReversals: 1, maxReversals: 2 },
-      { type: "label-stability", regions: "all" },
-      { type: "flow", regions: ["diff", "following"] },
-    ]),
-  )
-})
-
 function lines(count: number) {
   return Array.from({ length: count }, (_, index) => `line ${index + 1}`).join("\n")
 }

packages/app/e2e/performance/timeline-stability/lifecycle.spec.ts

@@ -14,6 +14,7 @@ import {
   partDelta,
   partUpdated,
   reasoningPart,
+  renderedPartID,
   setupTimeline,
   shell,
   status,
@@ -50,7 +51,7 @@ test.describe("timeline visual lifecycle stability", () => {
       prt_shell_long: shellRegion(ids[2]),
       following: shellRegion(followingID),
     })
-    await waitForVisualSettle(page, [`[data-timeline-part-id="${followingID}"]`])
+    await waitForVisualSettle(page, [`[data-timeline-part-id="${renderedPartID(followingID)}"]`])
     await startVisualProbe(page, regions)
     await timeline.sendAll([
       { event: partUpdated(shell(ids[0]!, "completed", "")), delay: 180 },
@@ -60,7 +61,7 @@ test.describe("timeline visual lifecycle stability", () => {
       { event: partUpdated(shell(ids[1]!, "completed", lines(2))), delay: 260 },
       { event: partUpdated(shell(ids[2]!, "running", lines(50))), delay: 100 },
       { event: partUpdated(shell(ids[2]!, "completed", lines(50))), delay: 450 },
-      { event: messageUpdated(completedAssistantInfo(assistant.info)), delay: 100 },
+      { event: messageUpdated(completedAssistantInfo(assistant)), delay: 100 },
       { event: status("idle"), delay: 700 },
     ])
     const trace = await stopVisualProbe<keyof typeof regions>(page)
@@ -84,9 +85,11 @@ test.describe("timeline visual lifecycle stability", () => {
         { perMarker: true },
       ),
     )
-    await expect(page.locator(`[data-timeline-part-id="${ids[2]}"] [data-slot="bash-pre"]`)).toContainText("line 50")
+    await expect(
+      page.locator(`[data-timeline-part-id="${renderedPartID(ids[2])}"] [data-slot="bash-pre"]`),
+    ).toContainText("line 50")
 
-    const short = page.locator(`[data-timeline-part-id="${ids[1]}"]`)
+    const short = page.locator(`[data-timeline-part-id="${renderedPartID(ids[1])}"]`)
     await short.locator('[data-slot="collapsible-trigger"]').click()
     await expect(short.locator('[data-slot="collapsible-trigger"]')).toHaveAttribute("aria-expanded", "false")
     await timeline.send(partUpdated(textPart("prt_late_sibling", "A later sibling rerender.")), 250)
@@ -106,26 +109,31 @@ test.describe("timeline visual lifecycle stability", () => {
     })
     await timeline.send(status("busy"), 120)
     await expect(page.locator('[data-timeline-row="Thinking"]')).toBeVisible()
+    const initialReasoning = reasoningPart(reasoningID, "")
+    const initialText = textPart(textID, "Starting")
 
     const regions = defineVisualRegions({
       thinking: { selector: '[data-timeline-row="Thinking"]' },
       reasoning: {
-        selector: `[data-timeline-part-id="${reasoningID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(reasoningID)}"]`,
+        closest: '[data-timeline-row="AssistantPart"]',
+      },
+      text: {
+        selector: `[data-timeline-part-id="${renderedPartID(textID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
-      text: { selector: `[data-timeline-part-id="${textID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
     })
     await startVisualProbe(page, regions)
-    await timeline.send(partUpdated(reasoningPart(reasoningID, "")), 100)
-    await expect(page.locator(`[data-timeline-part-id="${reasoningID}"]`)).toHaveCount(0)
+    await timeline.send(partUpdated(initialReasoning), 100)
+    await expect(page.locator(`[data-timeline-part-id="${renderedPartID(reasoningID)}"]`)).toHaveCount(0)
     await timeline.send(partUpdated(reasoningPart(reasoningID, "## Planning\n\nChecking the visible timeline.")), 160)
     await timeline.waitForPart(reasoningID)
     await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-    await timeline.send(partUpdated(textPart(textID, "Starting")), 100)
+    await timeline.send(partUpdated(initialText), 100)
     await timeline.send(partDelta(textID, " **stable"), 90)
     await timeline.send(partDelta(textID, " output** with `code` and [a link"), 130)
     await timeline.send(partDelta(textID, "](https://example.com)."), 220)
-    await timeline.send(messageUpdated(completedAssistantInfo(assistant.info)), 120)
+    await timeline.send(messageUpdated(completedAssistantInfo(assistant)), 120)
     await timeline.send(status("idle"), 500)
     const trace = await stopVisualProbe<keyof typeof regions>(page)
     await reportVisualStability(
@@ -144,7 +152,7 @@ test.describe("timeline visual lifecycle stability", () => {
         { type: "flow", regions: ["reasoning", "text"] },
       ]),
     )
-    await expect(page.locator(`[data-timeline-part-id="${textID}"]`)).toContainText("stable output")
+    await expect(page.locator(`[data-timeline-part-id="${renderedPartID(textID)}"]`)).toContainText("stable output")
   })
 })
 
@@ -153,5 +161,5 @@ function lines(count: number) {
 }
 
 function shellRegion(id: string) {
-  return { selector: `[data-timeline-part-id="${id}"]`, closest: '[data-timeline-row="AssistantPart"]' }
+  return { selector: `[data-timeline-part-id="${renderedPartID(id)}"]`, closest: '[data-timeline-row="AssistantPart"]' }
 }

packages/app/e2e/performance/timeline-stability/oracle-browser.spec.ts

@@ -6,14 +6,14 @@ import {
   stopVisualProbe,
   visualPlan,
 } from "../../utils/visual-stability"
-import { assistantMessage, setupTimeline, textPart, userMessage } from "./fixture"
+import { assistantMessage, renderedPartID, setupTimeline, textPart, userMessage } from "./fixture"
 
 test("detects blanking caused by ancestor opacity", async ({ page }) => {
   const partID = "prt_oracle_ancestor_opacity"
   await setupTimeline(page, { messages: [userMessage(), assistantMessage([textPart(partID, "Visible content")])] })
-  const row = page.locator(`[data-timeline-part-id="${partID}"]`).first()
+  const row = page.locator(`[data-timeline-part-id="${renderedPartID(partID)}"]`).first()
   const regions = defineVisualRegions({
-    content: { selector: `[data-timeline-part-id="${partID}"]` },
+    content: { selector: `[data-timeline-part-id="${renderedPartID(partID)}"]` },
   })
   await startVisualProbe(page, regions)
   await row.evaluate((element) => {
@@ -41,13 +41,13 @@ test("detects blanking caused by ancestor opacity", async ({ page }) => {
 test("detects root opacity when probing descendant opacity", async ({ page }) => {
   const partID = "prt_oracle_descendant_opacity"
   await setupTimeline(page, { messages: [userMessage(), assistantMessage([textPart(partID, "Visible content")])] })
-  const row = page.locator(`[data-timeline-part-id="${partID}"]`).first()
+  const row = page.locator(`[data-timeline-part-id="${renderedPartID(partID)}"]`).first()
   await row.evaluate((element) => {
     element.innerHTML = '<span data-probe-opacity="true">Visible content</span>'
   })
   const regions = defineVisualRegions({
     content: {
-      selector: `[data-timeline-part-id="${partID}"]`,
+      selector: `[data-timeline-part-id="${renderedPartID(partID)}"]`,
       opacitySelectors: ['[data-probe-opacity="true"]'],
     },
   })

packages/app/e2e/performance/timeline-stability/scroll-interaction.spec.ts

@@ -9,6 +9,7 @@ import {
 import {
   assistantMessage,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   shell,
   textPart,
@@ -34,8 +35,14 @@ test("does not reverse visible rows when the user wheels during shell remeasurem
   })
   const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
   const regions = defineVisualRegions({
-    shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    shell: {
+      selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await timeline.send(partUpdated(shell(shellID, "running", lines(30))), 80)
@@ -143,8 +150,8 @@ test("tracks keyboard scrolling from a focused timeline descendant", async ({ pa
     reducedMotion: true,
   })
   const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-  const row = page.locator(`[data-timeline-part-id="${shellID}"]`).first()
-  const trigger = page.locator(`[data-timeline-part-id="${shellID}"] [data-slot="collapsible-trigger"]`)
+  const row = page.locator(`[data-timeline-part-id="${renderedPartID(shellID)}"]`).first()
+  const trigger = page.locator(`[data-timeline-part-id="${renderedPartID(shellID)}"] [data-slot="collapsible-trigger"]`)
   await row.evaluate((element) => element.setAttribute("tabindex", "0"))
   await row.focus()
   for (let index = 0; index < 3; index++) {
@@ -182,7 +189,7 @@ test("does not claim keyboard scrolling owned by a nested scrollable", async ({
     seedHistory: true,
   })
   const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-  const nested = page.locator(`[data-timeline-part-id="${shellID}"] [data-scrollable]`)
+  const nested = page.locator(`[data-timeline-part-id="${renderedPartID(shellID)}"] [data-scrollable]`)
   await nested.evaluate((element) => (element.scrollTop = element.scrollHeight))
   await nested.focus()
   await page.waitForFunction(() => {
@@ -209,7 +216,7 @@ test("does not claim keyboard scrolling owned by a nested scrollable", async ({
   await nested.press("PageUp")
   await expect.poll(() => scroller.evaluate((element) => element.scrollTop)).toBeLessThan(boundaryBefore)
 
-  const nonOverflowing = page.locator(`[data-timeline-part-id="${shellID}"]`).first()
+  const nonOverflowing = page.locator(`[data-timeline-part-id="${renderedPartID(shellID)}"]`).first()
   await nonOverflowing.evaluate((element) => {
     element.setAttribute("data-scrollable", "")
     element.setAttribute("tabindex", "0")
@@ -238,12 +245,18 @@ test("jump to latest lands on stable final rows after offscreen growth", async (
   )
   await timeline.send(partUpdated(shell(shellID, "running", lines(50))), 300)
   const regions = defineVisualRegions({
-    shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    shell: {
+      selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await page.getByRole("button", { name: /Jump to latest/i }).click()
-  await expect(page.locator(`[data-timeline-part-id="${followingID}"]`)).toBeVisible()
+  await expect(page.locator(`[data-timeline-part-id="${renderedPartID(followingID)}"]`)).toBeVisible()
   await page.waitForTimeout(600)
   const trace = await stopVisualProbe<keyof typeof regions>(page)
   await reportVisualStability(
@@ -277,8 +290,14 @@ test("handles a single row taller than the viewport", async ({ page }, testInfo)
     seedHistory: true,
   })
   const regions = defineVisualRegions({
-    shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    shell: {
+      selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await timeline.send(partUpdated(shell(shellID, "completed", lines(100))), 700)

packages/app/e2e/performance/timeline-stability/shell-matrix.spec.ts

@@ -9,6 +9,7 @@ import {
 import {
   assistantMessage,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   shell,
   textPart,
@@ -68,13 +69,16 @@ for (const profile of profiles) {
     const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
     await scroller.evaluate((element) => (element.scrollTop = element.scrollHeight))
     await waitForVisualSettle(page, [
-      `[data-timeline-part-id="${shellID}"]`,
-      `[data-timeline-part-id="${followingID}"]`,
+      `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
     ])
     const regions = defineVisualRegions({
-      shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+      shell: {
+        selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+        closest: '[data-timeline-row="AssistantPart"]',
+      },
       following: {
-        selector: `[data-timeline-part-id="${followingID}"]`,
+        selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })
@@ -120,10 +124,19 @@ test("keeps following row stable when a collapsed shell receives 50 lines", asyn
     cpuRate: 4,
     seedHistory: true,
   })
-  await waitForVisualSettle(page, [`[data-timeline-part-id="${shellID}"]`, `[data-timeline-part-id="${followingID}"]`])
+  await waitForVisualSettle(page, [
+    `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+    `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+  ])
   const regions = defineVisualRegions({
-    shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    shell: {
+      selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await timeline.send(partUpdated(shell(shellID, "running", lines(50))), 240)
@@ -164,10 +177,19 @@ test("keeps rows stable when a running shell becomes an error", async ({ page },
     cpuRate: 4,
     seedHistory: true,
   })
-  await waitForVisualSettle(page, [`[data-timeline-part-id="${shellID}"]`, `[data-timeline-part-id="${followingID}"]`])
+  await waitForVisualSettle(page, [
+    `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+    `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+  ])
   const regions = defineVisualRegions({
-    shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    shell: {
+      selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await timeline.send(
@@ -215,16 +237,20 @@ test("keeps rows stable when later text arrives before shell output", async ({ p
     cpuRate: 4,
     seedHistory: true,
   })
-  await waitForVisualSettle(page, [`[data-timeline-part-id="${shellID}"]`])
+  const following = textPart(followingID, "Later assistant content arrived before shell output.")
+  await waitForVisualSettle(page, [`[data-timeline-part-id="${renderedPartID(shellID)}"]`])
   const regions = defineVisualRegions({
-    shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    shell: {
+      selector: `[data-timeline-part-id="${renderedPartID(shellID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
     following: {
-      selector: `[data-timeline-part-id="${followingID}"]`,
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
       closest: '[data-timeline-row="AssistantPart"]',
     },
   })
   await startVisualProbe(page, regions)
-  await timeline.send(partUpdated(textPart(followingID, "Later assistant content arrived before shell output.")), 240)
+  await timeline.send(partUpdated(following), 240)
   await timeline.send(partUpdated(shell(shellID, "running", lines(20))), 300)
   await timeline.send(partUpdated(shell(shellID, "completed", lines(20))), 600)
   const trace = await stopVisualProbe<keyof typeof regions>(page)

packages/app/e2e/performance/timeline-stability/tool-mutation.spec.ts

@@ -11,8 +11,8 @@ import {
   partUpdated,
   session,
   sessionID,
+  renderedPartID,
   setupTimeline,
-  textPart,
   toolPart,
   userMessage,
 } from "./fixture"
@@ -27,7 +27,7 @@ test("adds a task child-session link without replacing the task row", async ({ p
     cpuRate: 4,
   })
   const regions = defineVisualRegions({
-    task: { selector: `[data-timeline-part-id="${taskID}"] [data-slot="collapsible-trigger"]` },
+    task: { selector: `[data-timeline-part-id="${renderedPartID(taskID)}"] [data-slot="collapsible-trigger"]` },
   })
   await startVisualProbe(page, regions)
   await timeline.send(
@@ -53,54 +53,3 @@ test("adds a task child-session link without replacing the task row", async ({ p
     page.locator(`a[href$="/session/${childID}"]`, { has: page.locator('[data-component="task-tool-card"]') }),
   ).toBeVisible()
 })
-
-test("changes generic tool arguments without replacing the row", async ({ page }, testInfo) => {
-  const toolID = "prt_generic_mutation"
-  const followingID = "prt_generic_mutation_following"
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(),
-      assistantMessage(
-        [
-          toolPart(toolID, "mcp_probe", "running", { target: "one", count: 1 }),
-          textPart(followingID, "Following generic tool"),
-        ],
-        { completed: false },
-      ),
-    ],
-    cpuRate: 4,
-  })
-  const regions = defineVisualRegions({
-    tool: { selector: `[data-timeline-part-id="${toolID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-  })
-  await startVisualProbe(page, regions)
-  await timeline.send(
-    partUpdated(toolPart(toolID, "mcp_probe", "running", { target: "two", count: 2, mode: "deep" })),
-    200,
-  )
-  await timeline.send(
-    partUpdated(toolPart(toolID, "mcp_probe", "completed", { target: "two", count: 2, mode: "deep" })),
-    400,
-  )
-  const trace = await stopVisualProbe<keyof typeof regions>(page)
-  await reportVisualStability(
-    testInfo,
-    "generic-mutation",
-    trace,
-    visualPlan(
-      regions,
-      [
-        { type: "required", regions: ["tool", "following"] },
-        { type: "unique", regions: ["tool", "following"] },
-        { type: "stable", regions: ["tool", "following"] },
-        { type: "opacity", regions: "all" },
-        { type: "continuity", regions: "all" },
-        { type: "motion", regions: "all", maxPositionReversals: 0 },
-        { type: "label-stability", regions: "all" },
-        { type: "flow", regions: ["tool", "following"] },
-      ],
-      { perMarker: true },
-    ),
-  )
-})

packages/app/e2e/performance/timeline-stability/tools.spec.ts

@@ -12,6 +12,7 @@ import {
   partUpdated,
   session,
   sessionID,
+  renderedPartID,
   setupTimeline,
   status,
   textPart,
@@ -48,8 +49,8 @@ test.describe("timeline tool state stability", () => {
     })
     await timeline.send(status("busy"), 120)
     for (const id of ids) await timeline.waitForPart(`prt_state_${id}`)
-    await expect(page.locator(`[data-timeline-part-id="${questionID}"]`)).toHaveCount(0)
-    await expect(page.locator(`[data-timeline-part-id="${todoID}"]`)).toHaveCount(0)
+    await expect(page.locator(`[data-timeline-part-id="${renderedPartID(questionID)}"]`)).toHaveCount(0)
+    await expect(page.locator(`[data-timeline-part-id="${renderedPartID(todoID)}"]`)).toHaveCount(0)
 
     const regionIDs = [
       "prt_state_webfetch",
@@ -104,8 +105,10 @@ test.describe("timeline tool state stability", () => {
         { type: "label-stability", regions: "all" },
       ]),
     )
-    await expect(page.locator(`[data-timeline-part-id="${questionID}"]`)).toContainText("Keep it stable")
-    await expect(page.locator(`[data-timeline-part-id="${todoID}"]`)).toHaveCount(0)
+    await expect(page.locator(`[data-timeline-part-id="${renderedPartID(questionID)}"]`)).toContainText(
+      "Keep it stable",
+    )
+    await expect(page.locator(`[data-timeline-part-id="${renderedPartID(todoID)}"]`)).toHaveCount(0)
     await expect(
       page.locator(`a[href$="/session/${childID}"]`, { has: page.locator('[data-component="task-tool-card"]') }),
     ).toBeVisible()
@@ -145,7 +148,7 @@ test.describe("timeline tool state stability", () => {
       },
       context: { selector: groupSelector, closest: '[data-timeline-row="AssistantPart"]' },
       following: {
-        selector: '[data-timeline-part-id="prt_ctx_following"]',
+        selector: `[data-timeline-part-id="${renderedPartID("prt_ctx_following")}"]`,
         closest: '[data-timeline-row="AssistantPart"]',
       },
     })
@@ -194,5 +197,5 @@ function questionInput() {
 }
 
 function toolRegion(id: string) {
-  return { selector: `[data-timeline-part-id="${id}"]`, closest: '[data-timeline-row="AssistantPart"]' }
+  return { selector: `[data-timeline-part-id="${renderedPartID(id)}"]`, closest: '[data-timeline-row="AssistantPart"]' }
 }

packages/app/e2e/performance/timeline-stability/transition-matrix.spec.ts

@@ -7,13 +7,13 @@ import {
   visualPlan,
 } from "../../utils/visual-stability"
 import {
-  assistantID,
   assistantMessage,
   completedAssistantInfo,
   event,
   messageUpdated,
   partDelta,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   shell,
   status,
@@ -22,35 +22,6 @@ import {
   userMessage,
 } from "./fixture"
 
-test("keeps unchanged siblings stable while a middle part is inserted and removed", async ({ page }, testInfo) => {
-  const firstID = "prt_mutation_01_first"
-  const middleID = "prt_mutation_02_middle"
-  const lastID = "prt_mutation_03_last"
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(),
-      assistantMessage([textPart(firstID, "First stable row"), textPart(lastID, "Last stable row")], {
-        completed: false,
-      }),
-    ],
-    cpuRate: 4,
-  })
-  const regions = defineVisualRegions({
-    first: { selector: `[data-timeline-part-id="${firstID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    last: { selector: `[data-timeline-part-id="${lastID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-  })
-  await startVisualProbe(page, regions)
-  await timeline.send(partUpdated(textPart(middleID, "Inserted middle row. ".repeat(12))), 350)
-  await expect(page.locator(`[data-timeline-part-id="${middleID}"]`)).toBeVisible()
-  await timeline.send(
-    event("message.part.removed", { sessionID: "ses_timeline_stability", messageID: assistantID, partID: middleID }),
-    500,
-  )
-  await expect(page.locator(`[data-timeline-part-id="${middleID}"]`)).toHaveCount(0)
-  const trace = await stopVisualProbe<keyof typeof regions>(page)
-  await reportVisualStability(testInfo, "middle-insert-remove", trace, stablePairPlan(regions, 1))
-})
-
 test("streams text through growth, canonical replacement, and completion", async ({ page }, testInfo) => {
   const textID = "prt_text_reconcile"
   const followingID = "prt_text_reconcile_following"
@@ -59,14 +30,20 @@ test("streams text through growth, canonical replacement, and completion", async
   })
   const timeline = await setupTimeline(page, { messages: [userMessage(), assistant], cpuRate: 4 })
   const regions = defineVisualRegions({
-    text: { selector: `[data-timeline-part-id="${textID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    text: {
+      selector: `[data-timeline-part-id="${renderedPartID(textID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    following: {
+      selector: `[data-timeline-part-id="${renderedPartID(followingID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await timeline.send(partDelta(textID, " streamed content"), 100)
   await timeline.send(partDelta(textID, "\n\n- item one\n- item two\n- item three"), 180)
   await timeline.send(partUpdated(textPart(textID, "Canonical replacement with a shorter final paragraph.")), 200)
-  await timeline.send(messageUpdated(completedAssistantInfo(assistant.info)), 500)
+  await timeline.send(messageUpdated(completedAssistantInfo(assistant)), 500)
   const trace = await stopVisualProbe<keyof typeof regions>(page)
   await reportVisualStability(
     testInfo,
@@ -105,17 +82,23 @@ test("inserts a completed question between stable rows", async ({ page }, testIn
     ],
     cpuRate: 4,
   })
-  await expect(page.locator(`[data-timeline-part-id="${questionID}"]`)).toHaveCount(0)
+  await expect(page.locator(`[data-timeline-part-id="${renderedPartID(questionID)}"]`)).toHaveCount(0)
   const regions = defineVisualRegions({
-    first: { selector: `[data-timeline-part-id="${firstID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
-    last: { selector: `[data-timeline-part-id="${lastID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
+    first: {
+      selector: `[data-timeline-part-id="${renderedPartID(firstID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
+    last: {
+      selector: `[data-timeline-part-id="${renderedPartID(lastID)}"]`,
+      closest: '[data-timeline-row="AssistantPart"]',
+    },
   })
   await startVisualProbe(page, regions)
   await timeline.send(
     partUpdated(toolPart(questionID, "question", "completed", input, { metadata: { answers: [["Yes"]] } })),
     600,
   )
-  await expect(page.locator(`[data-timeline-part-id="${questionID}"]`)).toBeVisible()
+  await expect(page.locator(`[data-timeline-part-id="${renderedPartID(questionID)}"]`)).toBeVisible()
   const trace = await stopVisualProbe<keyof typeof regions>(page)
   await reportVisualStability(testInfo, "question-insert", trace, stablePairPlan(regions, 0))
 })
@@ -132,8 +115,8 @@ test("replaces thinking with an assistant error without a blank turn", async ({
   await startVisualProbe(page, regions)
   await timeline.send(
     messageUpdated({
-      ...assistant.info,
-      error: { name: "APIError", data: { message: "Provider failed visibly", isRetryable: false } },
+      ...assistant,
+      error: { type: "APIError", message: "Provider failed visibly" },
     }),
     500,
   )
@@ -203,59 +186,6 @@ test("updates retry attempts and long provider messages without remounting the r
   )
 })
 
-test("reducer-hardening: removes a historical turn one message at a time without moving a visible lower anchor twice", async ({
-  page,
-}, testInfo) => {
-  const removeUserID = "msg_0500_remove_user"
-  const removeAssistantID = "msg_0501_remove_assistant"
-  const anchorUserID = "msg_2000_anchor_user"
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(undefined, { id: removeUserID, created: 1690000000000 }),
-      assistantMessage([textPart("prt_remove_text", "Removed historical content. ".repeat(15))], {
-        id: removeAssistantID,
-        parentID: removeUserID,
-        created: 1690000001000,
-      }),
-      userMessage(undefined, { id: anchorUserID, created: 1700000000000 }),
-      assistantMessage([textPart("prt_anchor_text", "Visible anchor response")], {
-        id: "msg_2001_anchor_assistant",
-        parentID: anchorUserID,
-        created: 1700000001000,
-      }),
-    ],
-    cpuRate: 4,
-  })
-  const regions = defineVisualRegions({
-    anchor: { selector: `[data-timeline-row="UserMessage"][data-message-id="${anchorUserID}"]` },
-  })
-  await startVisualProbe(page, regions)
-  await timeline.send(
-    event("message.removed", { sessionID: "ses_timeline_stability", messageID: removeAssistantID }),
-    200,
-  )
-  await timeline.send(event("message.removed", { sessionID: "ses_timeline_stability", messageID: removeUserID }), 500)
-  const trace = await stopVisualProbe<keyof typeof regions>(page)
-  await reportVisualStability(
-    testInfo,
-    "historical-turn-remove",
-    trace,
-    visualPlan(
-      regions,
-      [
-        { type: "required", regions: ["anchor"] },
-        { type: "unique", regions: ["anchor"] },
-        { type: "stable", regions: ["anchor"] },
-        { type: "opacity", regions: "all" },
-        { type: "continuity", regions: "all" },
-        { type: "motion", regions: "all", maxPositionReversals: 0 },
-        { type: "label-stability", regions: "all" },
-      ],
-      { perMarker: true },
-    ),
-  )
-})
-
 function stablePairPlan(
   regions: Record<"first" | "last", { selector: string; closest?: string }>,
   maxPositionReversals: number,

packages/app/e2e/performance/timeline/review-pane-scaling-benchmark.spec.ts

@@ -48,7 +48,6 @@ benchmark.describe("performance: review pane scaling", () => {
         await setupTimelineBenchmark(page, {
           historyTurns: 0,
           eventBatch: 1,
-          newLayoutDesigns: true,
         })
         await page.route("**/vcs/diff**", (route) =>
           route.fulfill({

packages/app/e2e/performance/timeline/session-parent-hydration-benchmark.spec.ts

@@ -1,3 +1,4 @@
+import type { SessionMessageAssistant, SessionMessageInfo, SessionMessageUser } from "@opencode-ai/client/promise"
 import type { Page } from "@playwright/test"
 import { expectSessionTitle } from "../../utils/waits"
 import { mockOpenCodeServer } from "../../utils/mock-server"
@@ -11,42 +12,35 @@ type ParentHydrationBenchmarkMode = "natural" | "candidate"
 const mode = process.env.SESSION_PARENT_HYDRATION_BENCHMARK_MODE ?? "natural"
 if (mode !== "natural" && mode !== "candidate") throw new Error(`Unknown parent hydration benchmark mode: ${mode}`)
 const userID = "msg_parent_hydration_user"
+const userSeed = fixture.messages[fixture.targetID][0] as SessionMessageUser
 const user = {
-  ...fixture.messages[fixture.targetID][0]!,
-  info: { ...fixture.messages[fixture.targetID][0]!.info, id: userID, time: { created: 1700001000000 } },
-  parts: fixture.messages[fixture.targetID][0]!.parts.map((part, index) => ({
-    ...part,
-    id: `prt_parent_hydration_user_${index}`,
-    messageID: userID,
-  })),
-}
-const assistantSeed = fixture.messages[fixture.targetID][3]!
+  ...userSeed,
+  id: userID,
+  time: { created: 1700001000000 },
+} satisfies SessionMessageInfo
+const assistantSeed = fixture.messages[fixture.targetID][3] as SessionMessageAssistant
 const assistants = Array.from({ length: 14 }, (_, index) => {
   const messageID = `msg_parent_hydration_${String(index).padStart(2, "0")}`
   return {
     ...assistantSeed,
-    info: {
-      ...assistantSeed.info,
-      id: messageID,
-      parentID: userID,
-      time: { created: 1700001001000 + index * 1_000, completed: 1700001001500 + index * 1_000 },
-    },
-    parts: assistantSeed.parts.map((part, partIndex) => ({
-      ...part,
-      id: `prt_parent_hydration_${String(index).padStart(2, "0")}_${partIndex}`,
-      messageID,
-    })),
-  }
+    id: messageID,
+    time: { created: 1700001001000 + index * 1_000, completed: 1700001001500 + index * 1_000 },
+    content: assistantSeed.content.map((part, partIndex) =>
+      part.type === "tool"
+        ? { ...part, id: `call_parent_hydration_${String(index).padStart(2, "0")}_${partIndex}` }
+        : part,
+    ),
+  } satisfies SessionMessageInfo
 })
 const messages = [user, ...assistants]
 const target = fixture.sessions.find((session) => session.id === fixture.targetID)!
 const lastID = userID
 const lastAssistant = assistants.at(-1)!
-const lastPart = lastAssistant.parts.at(-1)!
+const lastPart = lastAssistant.content.at(-1)!
 const lastPartID =
   lastPart.type === "tool"
     ? lastPart.id
-    : `${lastAssistant.info.id}:${lastPart.type}:${lastAssistant.parts.filter((part) => part.type === lastPart.type).length - 1}`
+    : `${lastAssistant.id}:${lastPart.type}:${lastAssistant.content.filter((part) => part.type === lastPart.type).length - 1}`
 
 benchmark("hydrates an orphaned latest turn after a cold session click", async ({ browser, report }, testInfo) => {
   benchmark.setTimeout(180_000)
@@ -107,30 +101,25 @@ async function trial(page: Page, mode: ParentHydrationBenchmarkMode) {
     },
     pageMessages: (sessionID, limit, before) => {
       const items = sessionID === fixture.targetID ? messages : fixture.messages[fixture.sourceID]
-      const end = before ? items.findIndex((message) => message.info.id === before) : items.length
+      const end = before ? items.findIndex((message) => message.id === before) : items.length
       const start = Math.max(0, end - limit)
-      return { items: items.slice(start, end), cursor: start > 0 ? items[start]!.info.id : undefined }
+      return { items: items.slice(start, end), cursor: start > 0 ? items[start]!.id : undefined }
     },
   })
-  await page.route(`**/session/${fixture.targetID}`, (route) => {
-    const current = new URL(route.request().url()).pathname.startsWith("/api/")
-    return route.fulfill({
+  await page.route(`**/api/session/${fixture.targetID}`, (route) =>
+    route.fulfill({
       status: 200,
       contentType: "application/json",
-      body: JSON.stringify(
-        current
-          ? {
-              data: {
-                ...target,
-                cost: 0,
-                tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
-                location: { directory: target.directory },
-              },
-            }
-          : target,
-      ),
-    })
-  })
+      body: JSON.stringify({
+        data: {
+          ...target,
+          cost: 0,
+          tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
+          location: { directory: target.directory },
+        },
+      }),
+    }),
+  )
   await installStressSessionTabs(page, { sessionIDs: [fixture.sourceID] })
   await page.goto(stressSessionHref(fixture.sourceID))
   await expectSessionTitle(page, fixture.expected.sourceTitle)
@@ -148,8 +137,8 @@ async function trial(page: Page, mode: ParentHydrationBenchmarkMode) {
     { href, title: target.title },
   )
   const metrics = await measureSessionSwitch(page, {
-    destinationIDs: messages.map((message) => message.info.id),
-    sourceIDs: fixture.messages[fixture.sourceID].map((message) => message.info.id),
+    destinationIDs: messages.map((message) => message.id),
+    sourceIDs: fixture.messages[fixture.sourceID].map((message) => message.id),
     lastID,
     requiredPartID: lastPartID,
     requireBottomAnchor: false,

packages/app/e2e/performance/timeline/session-tab-flash.spec.ts

@@ -32,8 +32,8 @@ benchmark("samples cached session repaint after the click", async ({ page, repor
 
   await installCachedRepaintProbe(page, {
     targetHref: stressSessionHref(fixture.targetID),
-    destination: fixture.messages[fixture.targetID].map((message) => message.info.id),
-    source: fixture.messages[fixture.sourceID].map((message) => message.info.id),
+    destination: fixture.messages[fixture.targetID].map((message) => message.id),
+    source: fixture.messages[fixture.sourceID].map((message) => message.id),
     last: fixture.expected.targetMessageIDs.at(-1)!,
     windowMs: 1_000,
   })

packages/app/e2e/performance/timeline/session-tab-switch-benchmark.spec.ts

@@ -13,21 +13,8 @@ import { measureSessionSwitch, waitForStableTimeline } from "./session-tab-switc
 
 type Result = Awaited<ReturnType<typeof measureSessionSwitch>>
 
-benchmark("benchmarks cold and hot session tab switching", async ({ browser, report }, testInfo) => {
-  benchmark.setTimeout(180_000)
-  const results = { cold: [] as Result[], hot: [] as Result[] }
-  for (const mode of ["cold", "hot"] as const) {
-    for (let run = 0; run < 5; run++) {
-      results[mode].push(
-        await withBenchmarkPage(browser, `session-tab-switch-${mode}-${run}`, (page) => trial(page, mode), testInfo),
-      )
-    }
-  }
-  report({ results, summary: summarize(results) })
-})
-
 benchmark(
-  "benchmarks v2 session tab switching with and without the review pane",
+  "benchmarks session tab switching with and without the review pane",
   async ({ browser, report }, testInfo) => {
     benchmark.setTimeout(360_000)
     const runs = Number(process.env.SESSION_TAB_SWITCH_RUNS ?? 5)
@@ -41,8 +28,8 @@ benchmark(
           results[reviewPane][mode].push(
             await withBenchmarkPage(
               browser,
-              `session-tab-switch-v2-${reviewPane}-${mode}-${run}`,
-              (page) => trial(page, mode, { newLayoutDesigns: true, reviewPane }),
+              `session-tab-switch-${reviewPane}-${mode}-${run}`,
+              (page) => trial(page, mode, reviewPane),
               testInfo,
             ),
           )
@@ -53,14 +40,10 @@ benchmark(
   },
 )
 
-async function trial(
-  page: Page,
-  mode: "cold" | "hot",
-  options?: { newLayoutDesigns?: boolean; reviewPane?: "closed" | "open" },
-) {
-  const reviewDiffs = options?.newLayoutDesigns ? createReviewDiffs() : undefined
+async function trial(page: Page, mode: "cold" | "hot", reviewPane: "closed" | "open") {
+  const reviewDiffs = createReviewDiffs()
   await mockStressTimeline(page, { vcsDiff: reviewDiffs })
-  if (options?.newLayoutDesigns) await installTimelineSettings(page)
+  await installTimelineSettings(page)
   await installStressSessionTabs(page)
   if (mode === "hot") {
     await page.goto(stressSessionHref(fixture.targetID))
@@ -72,13 +55,13 @@ async function trial(
     await expectSessionTitle(page, fixture.expected.sourceTitle)
   }
   await waitForStableTimeline(page, fixture.expected.sourceMessageIDs.at(-1)!)
-  if (options?.reviewPane === "open") {
+  if (reviewPane === "open") {
     await openReviewPane(page)
     await waitForStableTimeline(page, fixture.expected.sourceMessageIDs.at(-1)!)
   }
 
-  const destinationIDs = fixture.messages[fixture.targetID].map((message) => message.info.id)
-  const sourceIDs = fixture.messages[fixture.sourceID].map((message) => message.info.id)
+  const destinationIDs = fixture.messages[fixture.targetID].map((message) => message.id)
+  const sourceIDs = fixture.messages[fixture.sourceID].map((message) => message.id)
   const lastID = fixture.expected.targetMessageIDs.at(-1)!
   const href = stressSessionHref(fixture.targetID)
   const result = await measureSessionSwitch(page, {
@@ -134,8 +117,6 @@ async function openReviewPane(page: Page) {
   await page.getByRole("button", { name: "Toggle review" }).click()
   const panel = page.locator("#review-panel")
   await expect(panel).toBeVisible()
-  // Text-based readiness works across review implementations; the legacy list mounts
-  // diff viewers lazily while V2 mounts the active preview eagerly.
   await page.waitForFunction(() => {
     const panel = document.querySelector<HTMLElement>("#review-panel")
     const text = panel?.textContent ?? ""

packages/app/e2e/performance/timeline/session-timeline-benchmark.fixture.ts

@@ -1,4 +1,5 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
+import type { JsonValue, OpenCodeEvent, SessionMessageAssistant, SessionMessageInfo } from "@opencode-ai/client/promise"
 import type { Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../../utils/mock-server"
 import { expectAppVisible, expectSessionTitle } from "../../utils/waits"
@@ -10,37 +11,20 @@ const sessionID = "ses_timeline_state_regression"
 const userMessageID = "msg_user_regression"
 const assistantMessageID = "msg_assistant_regression"
 const editPartID = "prt_0001_edit"
-export const textPartID = "prt_9999_text"
+export const textPartID = `${assistantMessageID}:text:0`
 const title = "Timeline collapse state regression"
 const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
 
-type EventPayload = {
-  directory: string
-  payload: Record<string, unknown>
-}
+type EventPayload = OpenCodeEvent
 
 const userMessage = {
-  info: {
-    id: userMessageID,
-    sessionID,
-    role: "user",
-    time: { created: 1700000000000 },
-    summary: { diffs: [] },
-    agent: "build",
-    model,
-  },
-  parts: [
-    {
-      id: "prt_user_text",
-      sessionID,
-      messageID: userMessageID,
-      type: "text",
-      text: "Please edit the file.",
-    },
-  ],
-}
+  id: userMessageID,
+  type: "user",
+  time: { created: 1700000000000 },
+  text: "Please edit the file.",
+} satisfies SessionMessageInfo
 
-const editPart = {
+const editPart: ToolSeed = {
   id: editPartID,
   sessionID,
   messageID: assistantMessageID,
@@ -66,39 +50,22 @@ const editPart = {
   },
 }
 
-const streamedTextPart = {
-  id: textPartID,
-  sessionID,
-  messageID: assistantMessageID,
-  type: "text",
-  text: "Streaming added a later assistant text part.",
-}
-
 const assistantMessage = {
-  info: {
-    id: assistantMessageID,
-    sessionID,
-    role: "assistant",
-    time: { created: 1700000001000 },
-    parentID: userMessageID,
-    modelID: model.modelID,
-    providerID: model.providerID,
-    mode: "build",
-    agent: "build",
-    path: { cwd: directory, root: directory },
-    cost: 0.01,
-    tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-    variant: "max",
-  },
-  parts: [editPart],
-}
+  id: assistantMessageID,
+  type: "assistant",
+  time: { created: 1700000001000 },
+  model: { id: model.modelID, providerID: model.providerID, variant: model.variant },
+  agent: "build",
+  cost: 0.01,
+  tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+  content: [toolContent(editPart)],
+} satisfies SessionMessageInfo
 
 export async function setupTimelineBenchmark(
   page: Page,
   options: {
     historyTurns: number
     eventBatch: number
-    newLayoutDesigns?: boolean
     vcsDiff?: unknown[]
     turnDiffs?: unknown[]
   },
@@ -106,7 +73,7 @@ export async function setupTimelineBenchmark(
   const events: EventPayload[] = []
   let eventBatch = options.eventBatch
   const currentUserMessage = options.turnDiffs
-    ? { ...userMessage, info: { ...userMessage.info, summary: { diffs: options.turnDiffs } } }
+    ? { ...userMessage, metadata: { diffs: options.turnDiffs as JsonValue } }
     : userMessage
   await mockOpenCodeServer(page, {
     directory,
@@ -124,26 +91,23 @@ export async function setupTimelineBenchmark(
     events: () => events.splice(0, eventBatch),
     eventRetry: 16,
   })
-  await page.addInitScript(
-    (input) => {
-      localStorage.setItem(
-        "settings.v3",
-        JSON.stringify({
-          general: {
-            newLayoutDesigns: input.newLayoutDesigns,
-            editToolPartsExpanded: true,
-            shellToolPartsExpanded: true,
-            showReasoningSummaries: true,
-          },
-        }),
-      )
-    },
-    { newLayoutDesigns: options.newLayoutDesigns ?? false },
-  )
+  await page.addInitScript(() => {
+    localStorage.setItem(
+      "settings.v3",
+      JSON.stringify({
+        general: {
+          editToolPartsExpanded: true,
+          shellToolPartsExpanded: true,
+          showReasoningSummaries: true,
+        },
+      }),
+    )
+  })
   await page.setViewportSize({ width: 1366, height: 768 })
   const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
   const text = page.locator(`[data-timeline-part-id="${textPartID}"]`).first()
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, title)
   await expectAppVisible(scroller)
   return {
@@ -187,34 +151,27 @@ export async function setupTimelineBenchmark(
   }
 }
 
-export function buildInitialStreamEvent(deltaCount: number): EventPayload {
-  return {
-    directory,
-    payload: {
-      type: "message.part.updated",
-      properties: {
-        part: {
-          ...streamedTextPart,
-          text: `Streaming${streamChunk(0, deltaCount + 1)}\n\n\`\`\`ts\nconst initial = true\n\`\`\``,
-        },
-      },
-    },
-  }
+export function buildInitialStreamEvent(deltaCount: number): EventPayload[] {
+  return [
+    timelineEvent("session.text.started", { sessionID, assistantMessageID, ordinal: 0 }, true),
+    timelineEvent("session.text.delta", {
+      sessionID,
+      assistantMessageID,
+      ordinal: 0,
+      delta: `Streaming${streamChunk(0, deltaCount + 1)}\n\n\`\`\`ts\nconst initial = true\n\`\`\``,
+    }),
+  ]
 }
 
 export function buildStreamDeltaEvents(deltaCount: number): EventPayload[] {
-  return Array.from({ length: deltaCount }, (_, index) => ({
-    directory,
-    payload: {
-      type: "message.part.delta",
-      properties: {
-        messageID: assistantMessageID,
-        partID: textPartID,
-        field: "text",
-        delta: streamChunk(index + 1, deltaCount + 1),
-      },
-    },
-  }))
+  return Array.from({ length: deltaCount }, (_, index) =>
+    timelineEvent("session.text.delta", {
+      sessionID,
+      assistantMessageID,
+      ordinal: 0,
+      delta: streamChunk(index + 1, deltaCount + 1),
+    }),
+  )
 }
 
 function performanceTurn(index: number) {
@@ -320,48 +277,92 @@ function performanceTurn(index: number) {
           },
         ]
       : []),
-  ]
+  ] as unknown as ContentSeed[]
   return [
     {
-      info: {
-        id: userID,
-        sessionID,
-        role: "user",
-        time: { created: 1690000000000 + index * 2_000 },
-        summary: { diffs: [] },
-        agent: "build",
-        model,
-      },
-      parts: [
-        {
-          id: `prt_0000_${suffix}_user`,
-          sessionID,
-          messageID: userID,
-          type: "text",
-          text: `Historical prompt ${index}`,
-        },
-      ],
+      id: userID,
+      type: "user",
+      time: { created: 1690000000000 + index * 2_000 },
+      text: `Historical prompt ${index}`,
     },
     {
-      info: {
-        id: assistantID,
-        sessionID,
-        role: "assistant",
-        time: { created: 1690000001000 + index * 2_000, completed: 1690000001500 + index * 2_000 },
-        parentID: userID,
-        modelID: model.modelID,
-        providerID: model.providerID,
-        mode: "build",
-        agent: "build",
-        path: { cwd: directory, root: directory },
-        cost: 0.01,
-        tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-        variant: "max",
-        finish: "stop",
-      },
-      parts,
+      id: assistantID,
+      type: "assistant",
+      time: { created: 1690000001000 + index * 2_000, completed: 1690000001500 + index * 2_000 },
+      model: { id: model.modelID, providerID: model.providerID, variant: model.variant },
+      agent: "build",
+      cost: 0.01,
+      tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+      finish: "stop",
+      content: parts.map((part) => {
+        if (part.type === "text") return { type: "text" as const, text: part.text }
+        if (part.type === "reasoning")
+          return {
+            type: "reasoning" as const,
+            text: part.text,
+            time: { created: part.time.start, completed: part.time.end },
+          }
+        return toolContent(part)
+      }),
     },
-  ]
+  ] satisfies SessionMessageInfo[]
+}
+
+type ToolSeed = {
+  id?: string
+  sessionID?: string
+  messageID?: string
+  type: "tool"
+  callID: string
+  tool: string
+  state: {
+    status: string
+    input: Record<string, unknown>
+    output: string
+    title?: string
+    metadata: Record<string, unknown>
+    time: { start: number; end: number }
+  }
+}
+
+type ContentSeedBase = { id?: string; sessionID?: string; messageID?: string }
+
+type ContentSeed =
+  | (ContentSeedBase & { type: "text"; text: string })
+  | (ContentSeedBase & { type: "reasoning"; text: string; time: { start: number; end: number } })
+  | ToolSeed
+
+function toolContent(part: ToolSeed): SessionMessageAssistant["content"][number] {
+  return {
+    type: "tool",
+    id: part.callID,
+    name: part.tool,
+    time: { created: part.state.time.start, ran: part.state.time.start, completed: part.state.time.end },
+    state: {
+      status: "completed",
+      input: part.state.input as Record<string, JsonValue>,
+      content: [{ type: "text", text: part.state.output }],
+      metadata: part.state.metadata as Record<string, JsonValue>,
+    },
+  }
+}
+
+let eventSequence = 0
+
+function timelineEvent<Type extends "session.text.started" | "session.text.delta">(
+  type: Type,
+  data: Extract<OpenCodeEvent, { type: Type }>["data"],
+  durable = false,
+): Extract<OpenCodeEvent, { type: Type }> {
+  eventSequence++
+  return {
+    id: `evt_timeline_benchmark_${eventSequence}`,
+    created: 1700000002000 + eventSequence,
+    type,
+    data,
+    location: { directory },
+    ...(durable ? { durable: { aggregateID: sessionID, seq: eventSequence, version: 1 } } : {}),
+  } as unknown as Extract<OpenCodeEvent, { type: Type }>
 }
 
 function historicalMarkdown(index: number) {

packages/app/e2e/performance/timeline/session-timeline-benchmark.spec.ts

@@ -15,7 +15,6 @@ import {
 } from "./session-timeline-stream-probe"
 
 type TimelineStreamOptions = {
-  newLayoutDesigns?: boolean
   reviewDiffs?: boolean
   reviewPane?: boolean
 }
@@ -45,34 +44,27 @@ benchmark.describe("performance: session timeline streaming", () => {
     report(result.metrics, result.context)
   })
 
-  benchmark("streams assistant text in v2 with review pane closed", async ({ page, report }) => {
+  benchmark("streams assistant text with review diffs and pane closed", async ({ page, report }) => {
     benchmark.setTimeout(Number(process.env.TIMELINE_COMPLETION_TIMEOUT_MS ?? 420_000) + 60_000)
-    const result = await runTimelineStreamBenchmark(page, { newLayoutDesigns: true })
+    const result = await runTimelineStreamBenchmark(page, { reviewDiffs: true })
     report(result.metrics, result.context)
   })
 
-  benchmark("streams assistant text in v2 with review diffs and pane closed", async ({ page, report }) => {
+  benchmark("streams assistant text with review pane open", async ({ page, report }) => {
     benchmark.setTimeout(Number(process.env.TIMELINE_COMPLETION_TIMEOUT_MS ?? 420_000) + 60_000)
-    const result = await runTimelineStreamBenchmark(page, { newLayoutDesigns: true, reviewDiffs: true })
-    report(result.metrics, result.context)
-  })
-
-  benchmark("streams assistant text in v2 with review pane open", async ({ page, report }) => {
-    benchmark.setTimeout(Number(process.env.TIMELINE_COMPLETION_TIMEOUT_MS ?? 420_000) + 60_000)
-    const result = await runTimelineStreamBenchmark(page, { newLayoutDesigns: true, reviewPane: true })
+    const result = await runTimelineStreamBenchmark(page, { reviewPane: true })
     report(result.metrics, result.context)
   })
 })
 
 benchmark.describe("performance: review pane", () => {
-  benchmark("loads v2 review diffs and switches active files", async ({ page, report }) => {
+  benchmark("loads review diffs and switches active files", async ({ page, report }) => {
     benchmark.setTimeout(240_000)
     const historyTurns = Number(process.env.REVIEW_PANE_HISTORY_TURNS ?? 72)
     const diffs = createReviewDiffs()
     const fixture = await setupTimelineBenchmark(page, {
       historyTurns,
       eventBatch: 1,
-      newLayoutDesigns: true,
       vcsDiff: diffs,
     })
 
@@ -112,7 +104,6 @@ async function runTimelineStreamBenchmark(page: Page, options: TimelineStreamOpt
   const fixture = await setupTimelineBenchmark(page, {
     historyTurns,
     eventBatch,
-    newLayoutDesigns: options.newLayoutDesigns,
     // Turn diffs exercise timeline data cost; the pane-open scenario serves the same
     // diffs through the default git mode so it works across review implementations.
     turnDiffs: options.reviewDiffs ? diffs : undefined,
@@ -173,7 +164,6 @@ async function runTimelineStreamBenchmark(page: Page, options: TimelineStreamOpt
       queuedDeltas: deltas.length,
       historyTurns,
       eventBatch,
-      newLayoutDesigns: options.newLayoutDesigns === true,
       reviewPane: options.reviewPane === true ? "open" : "closed",
       reviewDiffs: diffs?.length ?? 0,
     },

packages/app/e2e/performance/timeline/session-timeline-stress.fixture.ts

@@ -28,9 +28,22 @@ const directory = "C:/OpenCode/SmokeProject"
 const projectID = "proj_smoke_timeline"
 const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
 
-type MessageInfo = Record<string, unknown> & { id: string; role: "user" | "assistant" }
-type MessagePart = Record<string, unknown> & { id: string; type: string; text?: string; tool?: string }
-type Message = { info: MessageInfo; parts: MessagePart[] }
+type MessagePart = {
+  id: string
+  type: "text" | "reasoning" | "tool"
+  text?: string
+  time?: { start: number; end?: number }
+  callID?: string
+  tool?: string
+  state?: {
+    status: "completed"
+    input: Record<string, unknown>
+    output: string
+    title: unknown
+    metadata: Record<string, unknown>
+    time: { start: number; end: number }
+  }
+}
 
 function lorem(seed: number, length: number) {
   let out = ""
@@ -48,54 +61,59 @@ function id(prefix: string, value: number) {
   return `${prefix}_smoke_${String(value).padStart(4, "0")}`
 }
 
-function userMessage(sessionID: string, index: number, textLength: number, diffs: unknown[] = []): Message {
+function userMessage(_sessionID: string, index: number, textLength: number, diffs: unknown[] = []): SessionMessageInfo {
   const messageID = id("msg_user", index)
   return {
-    info: {
-      id: messageID,
-      sessionID,
-      role: "user",
-      time: { created: 1700000000000 + index * 10_000 },
-      summary: { diffs },
-      agent: "build",
-      model,
-    },
-    parts: [
-      {
-        id: id("prt_user_text", index),
-        sessionID,
-        messageID,
-        type: "text",
-        text: lorem(index, textLength),
-      },
-    ],
+    id: messageID,
+    type: "user",
+    time: { created: 1700000000000 + index * 10_000 },
+    text: lorem(index, textLength),
+    metadata: diffs.length ? { diffs: diffs as JsonValue } : undefined,
   }
 }
 
-function assistantMessage(sessionID: string, index: number, parentID: string, parts: MessagePart[]): Message {
+function assistantMessage(
+  _sessionID: string,
+  index: number,
+  _parentID: string,
+  parts: MessagePart[],
+): SessionMessageInfo {
   const messageID = id("msg_assistant", index)
   return {
-    info: {
-      id: messageID,
-      sessionID,
-      role: "assistant",
-      time: { created: 1700000000000 + index * 10_000 + 1_000, completed: 1700000000000 + index * 10_000 + 8_000 },
-      parentID,
-      modelID: model.modelID,
-      providerID: model.providerID,
-      mode: "build",
-      agent: "build",
-      path: { cwd: directory, root: directory },
-      cost: 0.01,
-      tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-      variant: "max",
-      finish: "stop",
+    id: messageID,
+    type: "assistant",
+    time: { created: 1700000000000 + index * 10_000 + 1_000, completed: 1700000000000 + index * 10_000 + 8_000 },
+    model: { id: model.modelID, providerID: model.providerID, variant: model.variant },
+    agent: "build",
+    cost: 0.01,
+    tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+    finish: "stop",
+    content: parts.map(messageContent),
+  }
+}
+
+function messageContent(part: MessagePart): SessionMessageAssistant["content"][number] {
+  if (part.type === "text") return { type: "text", text: part.text ?? "" }
+  if (part.type === "reasoning")
+    return {
+      type: "reasoning",
+      text: part.text ?? "",
+      time: part.time
+        ? { created: part.time.start, ...(part.time.end === undefined ? {} : { completed: part.time.end }) }
+        : undefined,
+    }
+  const state = part.state!
+  return {
+    type: "tool",
+    id: part.callID ?? part.id,
+    name: part.tool!,
+    time: { created: state.time.start, ran: state.time.start, completed: state.time.end },
+    state: {
+      status: "completed",
+      input: state.input as Record<string, JsonValue>,
+      content: [{ type: "text", text: state.output }],
+      metadata: state.metadata as Record<string, JsonValue>,
     },
-    parts: parts.map((part) => ({
-      ...part,
-      sessionID,
-      messageID,
-    })),
   }
 }
 
@@ -200,7 +218,7 @@ function code(seed: number, lines: number, width = 32) {
   ).join("\n")
 }
 
-function turn(index: number): Message[] {
+function turn(index: number): SessionMessageInfo[] {
   const diff = index % 9 === 0 ? [fileDiff(`src/generated/summary-${index}.ts`, index)] : []
   const user = userMessage(targetID, index, 100 + (index % 4) * 80, diff)
   const parts = [
@@ -241,7 +259,7 @@ function turn(index: number): Message[] {
       ? [toolPart(index, 12, "task", { description: "Inspect generated fixture", subagent_type: "explore" }, 160)]
       : []),
   ]
-  return [user, assistantMessage(targetID, index, user.info.id, parts)]
+  return [user, assistantMessage(targetID, index, user.id, parts)]
 }
 
 const targetMessages = Array.from({ length: 72 }, (_, index) => turn(index)).flat()
@@ -267,19 +285,12 @@ const childMessages = Array.from({ length: 4 }, (_, index) => [
   userMessage(childID, index + 2000, 120),
   assistantMessage(childID, index + 2000, id("msg_user", index + 2000), [textPart(index + 2000, 0, 240)]),
 ]).flat()
-const messages: Record<string, Message[]> = {
+const messages: Record<string, SessionMessageInfo[]> = {
   [sourceID]: sourceMessages,
   [targetID]: targetMessages,
   [childID]: childMessages,
 }
 
-function renderable(part: MessagePart) {
-  if (part.type === "tool" && part.tool === "todowrite") return false
-  if (part.type === "text") return !!part.text?.trim()
-  if (part.type === "reasoning") return !!part.text?.trim()
-  return part.type !== "step-start" && part.type !== "step-finish" && part.type !== "patch"
-}
-
 export const fixture = {
   directory,
   project: {
@@ -339,14 +350,19 @@ export const fixture = {
     sourceTitle: "Uncommitted changes inquiry",
     targetTitle: "Example Game: sample jump movement & sample physics analysis",
     childTitle: "Inspect child navigation",
-    sourceMessageIDs: sourceMessages
-      .filter((message) => message.info.role === "user")
-      .map((message) => message.info.id),
-    targetMessageIDs: targetMessages
-      .filter((message) => message.info.role === "user")
-      .map((message) => message.info.id),
-    childMessageIDs: childMessages.filter((message) => message.info.role === "user").map((message) => message.info.id),
-    targetPartIDs: targetMessages.flatMap((message) => message.parts.filter(renderable).map((part) => part.id)),
+    sourceMessageIDs: sourceMessages.filter((message) => message.type === "user").map((message) => message.id),
+    targetMessageIDs: targetMessages.filter((message) => message.type === "user").map((message) => message.id),
+    childMessageIDs: childMessages.filter((message) => message.type === "user").map((message) => message.id),
+    targetPartIDs: targetMessages.flatMap((message) => {
+      if (message.type !== "assistant") return []
+      const ordinals = { text: 0, reasoning: 0 }
+      return message.content.flatMap((part) => {
+        if (part.type === "text") return part.text.trim() ? [`${message.id}:text:${ordinals.text++}`] : []
+        if (part.type === "reasoning")
+          return part.text.trim() ? [`${message.id}:reasoning:${ordinals.reasoning++}`] : []
+        return [part.id]
+      })
+    }),
   },
 }
 
@@ -355,12 +371,13 @@ export function pageMessages(sessionID: string, limit: number, before?: string)
   const end = before
     ? Math.max(
         0,
-        messages.findIndex((message) => message.info.id === before),
+        messages.findIndex((message) => message.id === before),
       )
     : messages.length
   const start = Math.max(0, end - limit)
   return {
     items: messages.slice(start, end),
-    cursor: start > 0 ? messages[start].info.id : undefined,
+    cursor: start > 0 ? messages[start].id : undefined,
   }
 }
+import type { JsonValue, SessionMessageAssistant, SessionMessageInfo } from "@opencode-ai/client/promise"

packages/app/e2e/performance/timeline/timeline-test-helpers.ts

@@ -1,5 +1,5 @@
 import type { Page } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { mockOpenCodeServer } from "../../utils/mock-server"
 import { fixture, pageMessages } from "./session-timeline-stress.fixture"
 
@@ -9,7 +9,6 @@ export async function installTimelineSettings(page: Page) {
       "settings.v3",
       JSON.stringify({
         general: {
-          newLayoutDesigns: true,
           editToolPartsExpanded: true,
           shellToolPartsExpanded: true,
           showReasoningSummaries: true,

packages/app/e2e/performance/unit/mock-server.test.ts

@@ -1,121 +1,6 @@
 import { expect, test } from "bun:test"
-import type { SessionMessageInfo } from "@opencode-ai/client/promise"
 import type { Page, Route } from "@playwright/test"
-import { currentMessage, mockOpenCodeServer } from "../../utils/mock-server"
-
-test("preserves current messages", () => {
-  const message = {
-    id: "msg_current",
-    type: "user",
-    time: { created: 1 },
-    text: "current",
-    files: [{ data: "e30=", mime: "application/json", source: { type: "inline" } }],
-  } satisfies SessionMessageInfo
-
-  expect(currentMessage(message)).toBe(message)
-})
-
-test("converts rich legacy messages to current message types", () => {
-  expect(
-    currentMessage({
-      info: { id: "msg_user", role: "user", time: { created: 1 } },
-      parts: [
-        { type: "text", text: "Use @src/a.ts with @explore" },
-        {
-          type: "file",
-          mime: "application/json",
-          filename: "data.json",
-          url: "data:application/json;base64,e30=",
-        },
-        {
-          type: "file",
-          mime: "text/plain",
-          filename: "a.ts",
-          url: "src/a.ts",
-          source: { type: "file", text: { value: "@src/a.ts", start: 4, end: 13 } },
-        },
-        { type: "agent", name: "explore", source: { value: "@explore", start: 19, end: 27 } },
-      ],
-    }),
-  ).toEqual({
-    id: "msg_user",
-    type: "user",
-    time: { created: 1 },
-    text: "Use @src/a.ts with @explore",
-    files: [
-      { data: "e30=", mime: "application/json", name: "data.json", source: { type: "inline" } },
-      {
-        data: "",
-        mime: "text/plain",
-        name: "a.ts",
-        source: { type: "uri", uri: "src/a.ts" },
-        mention: { text: "@src/a.ts", start: 4, end: 13 },
-      },
-    ],
-    agents: [{ name: "explore", mention: { text: "@explore", start: 19, end: 27 } }],
-  })
-
-  expect(
-    currentMessage({
-      info: {
-        id: "msg_assistant",
-        role: "assistant",
-        time: { created: 2, completed: 5 },
-        agent: "explore",
-        modelID: "model",
-        providerID: "provider",
-        variant: "high",
-        cost: 0.5,
-        tokens: { input: 1, output: 2, reasoning: 3, cache: { read: 4, write: 5 } },
-        finish: "tool-calls",
-        error: { name: "MessageAbortedError", data: { message: "Stopped" } },
-      },
-      parts: [
-        { type: "text", text: "Answer" },
-        { type: "reasoning", text: "Thinking", time: { start: 2, end: 3 } },
-        {
-          id: "prt_tool",
-          callID: "call_tool",
-          type: "tool",
-          tool: "read",
-          state: {
-            status: "completed",
-            input: { filePath: "src/a.ts" },
-            output: "contents",
-            metadata: { title: "a.ts" },
-            time: { start: 3, end: 4 },
-          },
-        },
-      ],
-    }),
-  ).toEqual({
-    id: "msg_assistant",
-    type: "assistant",
-    time: { created: 2, completed: 5 },
-    agent: "explore",
-    model: { id: "model", providerID: "provider", variant: "high" },
-    cost: 0.5,
-    tokens: { input: 1, output: 2, reasoning: 3, cache: { read: 4, write: 5 } },
-    finish: "tool-calls",
-    error: { type: "MessageAbortedError", message: "Stopped" },
-    content: [
-      { type: "text", text: "Answer" },
-      { type: "reasoning", text: "Thinking", time: { created: 2, completed: 3 } },
-      {
-        type: "tool",
-        id: "call_tool",
-        name: "read",
-        time: { created: 3, ran: 3, completed: 4 },
-        state: {
-          status: "completed",
-          input: { filePath: "src/a.ts" },
-          content: [{ type: "text", text: "contents" }],
-          metadata: { title: "a.ts" },
-        },
-      },
-    ],
-  })
-})
+import { mockOpenCodeServer } from "../../utils/mock-server"
 
 test("applies message latency after a list response gate is released", async () => {
   const events: string[] = []

packages/app/e2e/performance/unit/timeline-test-helpers.test.ts

@@ -1,5 +1,5 @@
 import { expect, test } from "bun:test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { fixture } from "../timeline/session-timeline-stress.fixture"
 import { stressSessionHref } from "../timeline/timeline-test-helpers"
 

packages/app/e2e/performance/unit/visual-stability.test.ts

@@ -5,7 +5,7 @@ import {
   type VisualStabilityTrace,
 } from "../../utils/visual-stability"
 import { analyzeVisualObservations } from "../../utils/visual-stability/analyzer"
-import { legacyVisualPlan, visualPlan, type VisualInvariant } from "../../utils/visual-stability/invariant"
+import { visualPlan, type VisualInvariant } from "../../utils/visual-stability/invariant"
 import { defineVisualRegions, mapVisualRegions } from "../../utils/visual-stability/regions"
 
 function trace(samples: VisualStabilityTrace["samples"]): VisualStabilityTrace {
@@ -346,19 +346,6 @@ test("evaluates the typed invariant algebra over explicit observations", () => {
   ])
 })
 
-test("legacy plan adapter preserves analyzer messages and order", () => {
-  const input = trace([
-    frame(0, region({ label: "Exploring", opacity: 1, bottom: 40 }), region({ top: 40, bottom: 60 })),
-    frame(16, region({ label: "Explored", opacity: 0.2, bottom: 50 }), region({ top: 49, bottom: 69 })),
-    frame(32, region({ label: "Exploring", opacity: 1, bottom: 50 }), region({ top: 50, bottom: 70 })),
-  ])
-  const options = { flow: ["changing", "following"], stable: ["changing"] }
-
-  expect(analyzeVisualObservations(input.samples, legacyVisualPlan(options))).toEqual(
-    analyzeVisualStability(input, options),
-  )
-})
-
 function frame(
   at: number,
   changing: VisualStabilityTrace["samples"][number]["regions"][string],

packages/app/e2e/regression/cross-server-tab-close.spec.ts

@@ -1,5 +1,5 @@
 import { expect, test, type Page, type Route } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { currentSession } from "../utils/mock-server"
 import { installSseTransport } from "../utils/sse-transport"
 
@@ -13,7 +13,6 @@ test("closing the active server's last tab opens the remaining server tab", asyn
   await mockServers(page, requests)
   await page.addInitScript(
     ({ serverB, sessionA, sessionB }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem("opencode.global.dat:server", JSON.stringify({ list: [serverB] }))
       localStorage.setItem(
         "opencode.window.browser.dat:tabs",
@@ -39,31 +38,6 @@ test("closing the active server's last tab opens the remaining server tab", asyn
   await expect(page.getByText(sessionB.title).first()).toBeVisible()
   const sessionBRequests = requests.filter((url) => url.includes(`/session/${sessionB.id}`))
   expect(sessionBRequests.every((url) => url.startsWith(serverB))).toBe(true)
-  expect(
-    requests.some((request) => {
-      const url = new URL(request)
-      return url.origin === serverB && url.searchParams.get("directory") === sessionB.directory
-    }),
-  ).toBe(true)
-})
-
-test("legacy session routes preserve an existing tab's server", async ({ page }) => {
-  await mockServers(page, [])
-  await page.addInitScript(
-    ({ serverB, sessionB }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
-      localStorage.setItem("opencode.global.dat:server", JSON.stringify({ list: [serverB] }))
-      localStorage.setItem(
-        "opencode.window.browser.dat:tabs",
-        JSON.stringify([{ type: "session", server: serverB, sessionId: sessionB }]),
-      )
-    },
-    { serverB, sessionB: sessionB.id },
-  )
-
-  const hrefB = `/server/${base64Encode(serverB)}/session/${sessionB.id}`
-  await page.goto(`/${base64Encode(sessionB.directory)}/session/${sessionB.id}`)
-  await expect(page).toHaveURL(new RegExp(`${hrefB.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}$`))
 })
 
 function session(id: string, directory: string, title: string) {
@@ -93,40 +67,26 @@ async function mockServers(page: Page, requests: string[]) {
     if (url.pathname === "/api/session/active") return json(route, { data: {} })
     if (url.pathname === `/api/session/${current.id}`) return json(route, { data: currentSession(current) })
     if (url.pathname === `/api/session/${current.id}/message`) return json(route, { data: [], cursor: {} })
-    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
-    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
-    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
-      return json(route, [])
-    if (url.pathname === "/provider")
-      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
-    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
-    if (url.pathname === "/project" || url.pathname === "/project/current") {
+    if (["/api/agent", "/api/provider", "/api/model", "/api/command", "/api/reference"].includes(url.pathname))
+      return json(route, { location: { directory: current.directory }, data: [] })
+    if (url.pathname === "/api/model/default")
+      return json(route, { location: { directory: current.directory }, data: null })
+    if (url.pathname === "/api/permission/request" || url.pathname === "/api/question/request")
+      return json(route, { location: { directory: current.directory }, data: [] })
+    if (url.pathname === "/api/mcp") return json(route, { location: { directory: current.directory }, data: [] })
+    if (url.pathname === "/api/mcp/resource")
+      return json(route, { location: { directory: current.directory }, data: { resources: [], templates: [] } })
+    if (url.pathname === "/api/project" || url.pathname === "/api/project/current") {
       const project = {
         id: current.projectID,
-        worktree: current.directory,
+        canonical: current.directory,
         vcs: "git",
         time: { created: 1, updated: 1 },
         sandboxes: [],
       }
-      return json(route, url.pathname === "/project" ? [project] : project)
+      return json(route, url.pathname === "/api/project" ? [project] : { id: project.id, directory: current.directory })
     }
-    if (url.pathname === "/path")
-      return json(route, {
-        state: current.directory,
-        config: current.directory,
-        worktree: current.directory,
-        directory: current.directory,
-        home: current.directory,
-      })
-    if (url.pathname === "/api/path")
-      return json(route, {
-        state: current.directory,
-        config: current.directory,
-        worktree: current.directory,
-        directory: current.directory,
-        home: current.directory,
-      })
-    if (url.pathname === "/vcs") return json(route, { branch: "main", default_branch: "main" })
+    if (url.pathname === "/api/location") return json(route, { directory: current.directory })
     if (url.pathname === "/api/vcs")
       return json(route, {
         location: { directory: current.directory },

packages/app/e2e/regression/file-browser-sidebar-tab-switch.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test, type Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"
@@ -124,7 +124,6 @@ async function setup(page: Page) {
 
   await page.addInitScript(
     ({ directory, server, sessionID }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.global.dat:server",
         JSON.stringify({

packages/app/e2e/regression/new-session-panel-corner.spec.ts

@@ -28,7 +28,6 @@ test("matches the rounded panel corners to the dark new-session background", asy
   })
   await page.addInitScript(
     ({ directory, draftID, server }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem("opencode-theme-id", "oc-2")
       localStorage.setItem("opencode-color-scheme", "dark")
       localStorage.setItem(

packages/app/e2e/regression/open-file-expand-folder.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"
@@ -81,10 +81,6 @@ test("expands a folder whose path has a trailing Windows separator", async ({ pa
 
   await page.addInitScript(
     ({ directory, server, sessionID }) => {
-      localStorage.setItem(
-        "settings.v3",
-        JSON.stringify({ general: { newLayoutDesigns: true, shouldDisplayTabsToast: false } }),
-      )
       localStorage.setItem(
         "opencode.global.dat:server",
         JSON.stringify({

packages/app/e2e/regression/prompt-input-v2-command-draft.spec.ts

@@ -1,11 +1,12 @@
 import { expect, test } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible } from "../utils/waits"
 
 const directory = "C:/OpenCode/PromptInputV2Editing"
 const projectID = "proj_prompt_input_v2_editing"
 const sessionID = "ses_prompt_input_v2_editing"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 
 test("preserves the draft when a populated command menu triggers a built-in", async ({ page }) => {
   await mockOpenCodeServer(page, {
@@ -32,11 +33,7 @@ test("preserves the draft when a populated command menu triggers a built-in", as
     ],
     pageMessages: () => ({ items: [] }),
   })
-  await page.addInitScript(() => {
-    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
-  })
-
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   const composer = page.locator('[data-component="prompt-input-v2"]')
   const input = composer.locator('[data-component="prompt-input"]')
   await expectAppVisible(composer)

packages/app/e2e/regression/prompt-thinking-level.spec.ts

@@ -1,11 +1,12 @@
 import { expect, test, type Page } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible } from "../utils/waits"
 
 const directory = "C:/OpenCode/PromptThinkingLevelRegression"
 const projectID = "proj_prompt_thinking_level_regression"
 const sessionID = "ses_prompt_thinking_level_regression"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 
 test("shows the V2 thinking level control while relevant", async ({ page }) => {
   await mockOpenCodeServer(page, {
@@ -49,11 +50,7 @@ test("shows the V2 thinking level control while relevant", async ({ page }) => {
     ],
     pageMessages: () => ({ items: [] }),
   })
-  await page.addInitScript(() => {
-    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
-  })
-
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   const composer = page.locator('[data-component="prompt-input-v2"]')
   const input = composer.locator('[data-component="prompt-input"]')
   const control = composer.getByRole("button", { name: "Choose model variant" })

packages/app/e2e/regression/remote-session-settings.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test, type Page, type Route } from "@playwright/test"
 import { installSseTransport } from "../utils/sse-transport"
 import { currentSession } from "../utils/mock-server"
@@ -49,7 +49,7 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
   const permissionRequests: string[] = []
   const permissionResponses: PermissionResponse[] = []
   await installSseTransport(page, { server: serverB })
-  const transport = await installSseTransport<{ directory: string; payload: Record<string, unknown> }>(page, {
+  const transport = await installSseTransport(page, {
     server: serverA,
     retry: 20,
   })
@@ -82,18 +82,17 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
   await transport.waitForConnection()
 
   await transport.send({
-    directory: directoryA,
-    payload: {
-      id: "event-permission-background-a",
-      type: "permission.asked",
-      properties: {
-        id: "permission-background-a",
-        sessionID: sessionA.id,
-        permission: "bash",
-        patterns: ["git status"],
-        metadata: {},
-        always: [],
-      },
+    id: "evt_permission_background_a",
+    created: 1700000001000,
+    type: "permission.asked",
+    location: { directory: directoryA },
+    data: {
+      id: "permission-background-a",
+      sessionID: sessionA.id,
+      action: "bash",
+      resources: ["git status"],
+      metadata: {},
+      save: [],
     },
   })
 
@@ -110,18 +109,17 @@ test("auto-accept responds for an unfocused server session", async ({ page }) =>
     ])
 
   await transport.send({
-    directory: directoryA,
-    payload: {
-      id: "event-permission-background-a-child",
-      type: "permission.asked",
-      properties: {
-        id: "permission-background-a-child",
-        sessionID: childSessionA.id,
-        permission: "bash",
-        patterns: ["git diff"],
-        metadata: {},
-        always: [],
-      },
+    id: "evt_permission_background_a_child",
+    created: 1700000002000,
+    type: "permission.asked",
+    location: { directory: directoryA },
+    data: {
+      id: "permission-background-a-child",
+      sessionID: childSessionA.id,
+      action: "bash",
+      resources: ["git diff"],
+      metadata: {},
+      save: [],
     },
   })
 
@@ -156,7 +154,6 @@ type PermissionResponse = {
 async function configureServers(page: Page, tabs: { type: "session"; server: string; sessionId: string }[] = []) {
   await page.addInitScript(
     ({ serverB, tabs }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem("opencode.global.dat:server", JSON.stringify({ list: [serverB] }))
       localStorage.setItem("opencode.window.browser.dat:tabs", JSON.stringify(tabs))
     },
@@ -227,38 +224,7 @@ async function mockServers(page: Page, permissionRequests: string[], permissionR
     if (currentSessionInfo) return json(route, { data: currentSession(currentSessionInfo) })
     if (sessions.some((session) => url.pathname === `/api/session/${session.id}/message`))
       return json(route, { data: [], cursor: {} })
-    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
-    if (/^\/session\/[^/]+\/message$/.test(url.pathname)) return json(route, [])
-    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
-    if (url.pathname === "/permission") {
-      permissionRequests.push(url.toString())
-      return json(route, [])
-    }
-    if (["/skill", "/command", "/lsp", "/formatter", "/question", "/vcs/diff", "/pty/shells"].includes(url.pathname))
-      return json(route, [])
-    if (url.pathname === "/provider") return json(route, provider(remote ? "server-b" : "server-a"))
-    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
-    if (url.pathname === "/project" || url.pathname === "/project/current") {
-      const project = {
-        id: remote ? sessionB.projectID : "project-server-a",
-        worktree: directory,
-        vcs: "git",
-        time: { created: 1, updated: 1 },
-        sandboxes: [],
-      }
-      return json(route, url.pathname === "/project" ? [project] : project)
-    }
-    if (url.pathname === "/path")
-      return json(route, {
-        state: directory,
-        config: directory,
-        worktree: directory,
-        directory,
-        home: directory,
-      })
-    if (url.pathname === "/api/path")
-      return json(route, { state: directory, config: directory, worktree: directory, directory, home: directory })
-    if (url.pathname === "/vcs") return json(route, { branch: "main", default_branch: "main" })
+    if (url.pathname === "/api/location") return json(route, { directory })
     if (url.pathname === "/api/vcs")
       return json(route, { location: { directory }, data: { branch: "main", defaultBranch: "main" } })
     if (url.pathname === "/api/pty/shells") return json(route, { location: { directory }, data: [] })

packages/app/e2e/regression/remote-tab-busy.spec.ts

@@ -1,5 +1,5 @@
 import { expect, test, type Page, type Route } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { currentSession } from "../utils/mock-server"
 
 const serverA = "http://127.0.0.1:4096"
@@ -11,7 +11,6 @@ test("tab busy indicator reflects the tab server's own session status", async ({
   await mockServers(page)
   await page.addInitScript(
     ({ serverA, serverB, sessionA, sessionB }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem("opencode.global.dat:server", JSON.stringify({ list: [serverB] }))
       localStorage.setItem(
         "opencode.window.browser.dat:tabs",
@@ -58,47 +57,33 @@ async function mockServers(page: Page) {
     const current = url.origin === serverA ? sessionA : sessionB
     const directory = url.searchParams.get("directory")
     if (directory && directory !== current.directory) return json(route, { name: "InvalidDirectory" }, 500)
-    if (url.pathname === "/api/event") return sse(route, url.pathname === "/api/event")
+    if (url.pathname === "/api/event") return sse(route)
     if (url.pathname === "/api/health") return json(route, { pid: 1 })
     if (url.pathname === "/api/session/active")
       return json(route, { data: url.origin === serverB ? { [sessionB.id]: { type: "running" } } : {} })
     if (url.pathname === "/api/session") return json(route, { data: [currentSession(current)], cursor: {} })
     if (url.pathname === `/api/session/${current.id}`) return json(route, { data: currentSession(current) })
     if (url.pathname === `/api/session/${current.id}/message`) return json(route, { data: [], cursor: {} })
-    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
-    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
-    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
-      return json(route, [])
-    if (url.pathname === "/provider")
-      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
-    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
-    if (url.pathname === "/project" || url.pathname === "/project/current") {
+    if (["/api/agent", "/api/provider", "/api/model", "/api/command", "/api/reference"].includes(url.pathname))
+      return json(route, { location: { directory: current.directory }, data: [] })
+    if (url.pathname === "/api/model/default")
+      return json(route, { location: { directory: current.directory }, data: null })
+    if (url.pathname === "/api/permission/request" || url.pathname === "/api/question/request")
+      return json(route, { location: { directory: current.directory }, data: [] })
+    if (url.pathname === "/api/mcp") return json(route, { location: { directory: current.directory }, data: [] })
+    if (url.pathname === "/api/mcp/resource")
+      return json(route, { location: { directory: current.directory }, data: { resources: [], templates: [] } })
+    if (url.pathname === "/api/project" || url.pathname === "/api/project/current") {
       const project = {
         id: current.projectID,
-        worktree: current.directory,
+        canonical: current.directory,
         vcs: "git",
         time: { created: 1, updated: 1 },
         sandboxes: [],
       }
-      return json(route, url.pathname === "/project" ? [project] : project)
+      return json(route, url.pathname === "/api/project" ? [project] : { id: project.id, directory: current.directory })
     }
-    if (url.pathname === "/path")
-      return json(route, {
-        state: current.directory,
-        config: current.directory,
-        worktree: current.directory,
-        directory: current.directory,
-        home: current.directory,
-      })
-    if (url.pathname === "/api/path")
-      return json(route, {
-        state: current.directory,
-        config: current.directory,
-        worktree: current.directory,
-        directory: current.directory,
-        home: current.directory,
-      })
-    if (url.pathname === "/vcs") return json(route, { branch: "main", default_branch: "main" })
+    if (url.pathname === "/api/location") return json(route, { directory: current.directory })
     if (url.pathname === "/api/vcs")
       return json(route, {
         location: { directory: current.directory },
@@ -117,10 +102,10 @@ function json(route: Route, body: unknown, status = 200) {
   })
 }
 
-function sse(route: Route, current: boolean) {
+function sse(route: Route) {
   return route.fulfill({
     status: 200,
     contentType: "text/event-stream",
-    body: current ? 'data: {"id":"evt_connected","type":"server.connected","data":{}}\n\n' : ": ok\n\n",
+    body: 'data: {"id":"evt_connected","type":"server.connected","data":{}}\n\n',
   })
 }

packages/app/e2e/regression/removed-layout-preference.spec.ts

@@ -1,39 +0,0 @@
-import { expect, test } from "@playwright/test"
-import { mockOpenCodeServer } from "../utils/mock-server"
-
-const draftID = "draft_removed_layout_preference"
-const directory = "C:/OpenCode/RemovedLayoutPreference"
-const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
-
-test("ignores persisted old layout preferences when opening drafts", async ({ page }) => {
-  await mockOpenCodeServer(page, {
-    directory,
-    project: {
-      id: "proj_removed_layout_preference",
-      worktree: directory,
-      vcs: "git",
-      name: "removed-layout-preference",
-      time: { created: 1700000000000, updated: 1700000000000 },
-      sandboxes: [],
-    },
-    provider: { all: [], connected: [], default: {} },
-    sessions: [],
-    pageMessages: () => ({ items: [] }),
-  })
-  await page.addInitScript(
-    ({ directory, draftID, server }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: false } }))
-      localStorage.setItem(
-        "opencode.window.browser.dat:tabs",
-        JSON.stringify([{ type: "draft", draftID, server, directory }]),
-      )
-    },
-    { directory, draftID, server },
-  )
-
-  await page.goto(`/new-session?draftId=${draftID}`)
-
-  await expect(page).toHaveURL(`/new-session?draftId=${draftID}`)
-  await expect(page.locator("body")).toHaveAttribute("data-new-layout", "")
-  await expect(page.getByRole("textbox", { name: "Prompt" })).toBeVisible()
-})

packages/app/e2e/regression/review-image-flash.spec.ts

@@ -1,5 +1,5 @@
 import { expect, test, type Page } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible, expectSessionTitle } from "../utils/waits"
 
@@ -7,6 +7,7 @@ const directory = "C:/OpenCode/ReviewImageFlashRegression"
 const sessionID = "ses_review_image_flash_regression"
 const title = "Review image flash regression"
 const imageFile = "assets/preview.png"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 
 test("clicking an image file in the v2 review pane does not blank the panel", async ({ page }) => {
   await openReview(page)
@@ -26,9 +27,6 @@ test("clicking an image file in the v2 review pane does not blank the panel", as
 
 async function openReview(page: Page) {
   await page.setViewportSize({ width: 960, height: 900 })
-  await page.addInitScript(() => {
-    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
-  })
   await mockOpenCodeServer(page, {
     directory,
     project: {
@@ -112,30 +110,16 @@ async function openReview(page: Page) {
     pageMessages: () => ({
       items: [
         {
-          info: {
-            id: "msg_review_image_flash_regression",
-            sessionID,
-            role: "user",
-            time: { created: 1700000000000 },
-            summary: { diffs: [] },
-            agent: "build",
-            model: { providerID: "opencode", modelID: "test" },
-          },
-          parts: [
-            {
-              id: "prt_review_image_flash_regression",
-              sessionID,
-              messageID: "msg_review_image_flash_regression",
-              type: "text",
-              text: "Review this change.",
-            },
-          ],
+          id: "msg_review_image_flash_regression",
+          type: "user",
+          time: { created: 1700000000000 },
+          text: "Review this change.",
         },
       ],
     }),
   })
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, title)
   await page.getByRole("button", { name: "Toggle review" }).click()
   await expectAppVisible(page.locator('#review-panel [data-component="session-review-v2"]'))

packages/app/e2e/regression/review-line-comment.spec.ts

@@ -1,11 +1,12 @@
 import { expect, test, type Page } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible, expectSessionTitle } from "../utils/waits"
 
 const directory = "C:/OpenCode/ReviewLineCommentRegression"
 const sessionID = "ses_review_line_comment_regression"
 const title = "Review line comment regression"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 
 test.beforeEach(async ({ page }) => {
   await openReview(page)
@@ -88,7 +89,6 @@ test("stages a submitted line comment in the prompt context", async ({ page }) =
 async function openReview(page: Page) {
   await page.setViewportSize({ width: 700, height: 900 })
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: {
       id: "proj_review_line_comment_regression",
@@ -123,30 +123,16 @@ async function openReview(page: Page) {
     pageMessages: () => ({
       items: [
         {
-          info: {
-            id: "msg_review_line_comment_regression",
-            sessionID,
-            role: "user",
-            time: { created: 1700000000000 },
-            summary: { diffs: [] },
-            agent: "build",
-            model: { providerID: "opencode", modelID: "test" },
-          },
-          parts: [
-            {
-              id: "prt_review_line_comment_regression",
-              sessionID,
-              messageID: "msg_review_line_comment_regression",
-              type: "text",
-              text: "Review this change.",
-            },
-          ],
+          id: "msg_review_line_comment_regression",
+          type: "user",
+          time: { created: 1700000000000 },
+          text: "Review this change.",
         },
       ],
     }),
   })
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, title)
   const changes = page.getByRole("tab", { name: "Changes" })
   const diffResponse = page.waitForResponse(

packages/app/e2e/regression/review-open-file.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"
@@ -14,7 +14,6 @@ test.use({ viewport: { width: 1440, height: 900 } })
 test("opens and searches project files inline", async ({ page }) => {
   const searches: { query: string; dirs?: string; limit?: number }[] = []
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: {
       id: projectID,
@@ -63,7 +62,6 @@ test("opens and searches project files inline", async ({ page }) => {
   })
   await page.addInitScript(
     ({ directory, server, sessionID }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.global.dat:server",
         JSON.stringify({

packages/app/e2e/regression/review-state-persistence.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test, type Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"
@@ -54,7 +54,6 @@ async function switchSession(page: Page, title: string) {
 
 async function setup(page: Page) {
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: {
       id: projectID,
@@ -103,7 +102,6 @@ async function setup(page: Page) {
   )
   await page.addInitScript(
     ({ directory, server, sessions }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.global.dat:server",
         JSON.stringify({

packages/app/e2e/regression/review-tab-switch.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test, type Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible, expectSessionTitle } from "../utils/waits"
@@ -103,7 +103,6 @@ async function setup(page: Page) {
 
   await page.addInitScript(
     ({ directory, server, sessions }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.global.dat:server",
         JSON.stringify({

packages/app/e2e/regression/review-terminal-stacked.spec.ts

@@ -6,6 +6,7 @@ const directory = "C:/OpenCode/ReviewTerminalStacked"
 const projectID = "proj_review_terminal_stacked"
 const sessionID = "ses_review_terminal_stacked"
 const title = "Review terminal stacked"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 const branchDiffs = [
   fileDiff(".github/actions/setup-bun/action.yml", 7),
   ...Array.from({ length: 2_739 }, (_, index) =>
@@ -21,7 +22,6 @@ test("keeps the review tree and terminal sized when both panels are open", async
   test.setTimeout(120_000)
   await page.setViewportSize({ width: 1400, height: 900 })
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: {
       id: projectID,
@@ -124,15 +124,13 @@ test("keeps the review tree and terminal sized when both panels are open", async
   )
   await page.routeWebSocket("**/api/pty/pty_review_terminal/connect", () => undefined)
   await page.addInitScript(() => {
-    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
     localStorage.setItem(
       "opencode.global.dat:layout",
       JSON.stringify({ review: { diffStyle: "split", panelOpened: true } }),
     )
   })
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
-  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionReady(page, { server, sessionID, title })
   await expect(page.locator("#review-panel")).toBeVisible()
   await expectTree(page, 2_773, "action.yml")

packages/app/e2e/regression/session-list-path-loading.spec.ts

@@ -16,8 +16,7 @@ test("shows loaded sessions before the directory path request resolves", async (
   const pathBlocked = new Promise<void>((resolve) => {
     releasePath = resolve
   })
-  await page.route("**/api/path?*", async (route) => {
-    if (!new URL(route.request().url()).searchParams.has("location[directory]")) return route.fallback()
+  await page.route("**/api/location*", async (route) => {
     await pathBlocked
     return route.fallback()
   })

packages/app/e2e/regression/session-request-docks.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test, type Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { installSseTransport } from "../utils/sse-transport"
@@ -8,6 +8,7 @@ const directory = "C:/OpenCode/RequestDocks"
 const projectID = "proj_request_docks"
 const sessionID = "ses_request_docks"
 const title = "Request dock regression"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 
 test("shows a pending question dock", async ({ page }) => {
   await mockServer(page, {
@@ -34,7 +35,7 @@ test("shows a pending question dock", async ({ page }) => {
     ],
   })
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, title)
 
   const question = page.locator('[data-component="dock-prompt"][data-kind="question"]')
@@ -92,7 +93,7 @@ test("shows a pending permission dock", async ({ page }) => {
     ],
   })
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, title)
 
   const permission = page.locator('[data-component="dock-prompt"][data-kind="permission"]')
@@ -111,11 +112,11 @@ test("shows a pending permission dock", async ({ page }) => {
 
 test("restores the draft caret before typing after a request dock closes", async ({ page }) => {
   const transport = await installSseTransport(page, {
-    server: `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`,
+    server,
     retry: 20,
   })
   await mockServer(page, { forms: [] })
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await transport.waitForConnection()
   await expectSessionTitle(page, title)
 
@@ -138,26 +139,26 @@ test("restores the draft caret before typing after a request dock closes", async
     )
     .toBe(cursor)
   await transport.send({
-    directory,
-    payload: {
-      type: "form.created",
-      properties: {
-        form: {
-          id: "frm_question_caret",
-          sessionID,
-          title: "Questions",
-          metadata: { kind: "question", tool: { messageID: "message-caret", id: "call-caret" } },
-          fields: [
-            {
-              key: "q0",
-              type: "string",
-              title: "Continue",
-              description: "Continue?",
-              options: [{ value: "yes", label: "Yes", description: "Continue the session" }],
-              custom: true,
-            },
-          ],
-        },
+    id: "evt_form_created",
+    created: 1700000001000,
+    type: "form.created",
+    location: { directory },
+    data: {
+      form: {
+        id: "frm_question_caret",
+        sessionID,
+        title: "Questions",
+        metadata: { kind: "question", tool: { messageID: "message-caret", id: "call-caret" } },
+        fields: [
+          {
+            key: "q0",
+            type: "string",
+            title: "Continue",
+            description: "Continue?",
+            options: [{ value: "yes", label: "Yes", description: "Continue the session" }],
+            custom: true,
+          },
+        ],
       },
     },
   })
@@ -166,11 +167,11 @@ test("restores the draft caret before typing after a request dock closes", async
   await expect(editor).toHaveCount(0)
 
   await transport.send({
-    directory,
-    payload: {
-      type: "form.cancelled",
-      properties: { sessionID, id: "frm_question_caret" },
-    },
+    id: "evt_form_cancelled",
+    created: 1700000002000,
+    type: "form.cancelled",
+    location: { directory },
+    data: { sessionID, id: "frm_question_caret" },
   })
   await expect(question).toHaveCount(0)
   await expect(editor).toBeVisible()
@@ -183,13 +184,11 @@ async function mockServer(
   page: Page,
   requests: {
     permissions?: unknown[] | (() => unknown[])
-    questions?: unknown[] | (() => unknown[])
     forms?: unknown[] | (() => unknown[])
     sessionStatus?: Record<string, unknown>
   },
 ) {
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: {
       id: projectID,
@@ -229,11 +228,7 @@ async function mockServer(
     ],
     pageMessages: () => ({ items: [] }),
     permissions: requests.permissions,
-    questions: requests.questions,
     forms: requests.forms,
     sessionStatus: requests.sessionStatus,
   })
-  await page.addInitScript(() => {
-    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
-  })
 }

packages/app/e2e/regression/session-timeline-collapse-state.spec.ts

@@ -1,4 +1,5 @@
 import { expect, test, type Locator, type Page } from "@playwright/test"
+import type { JsonValue, OpenCodeEvent, SessionMessageAssistant, SessionMessageInfo } from "@opencode-ai/client/promise"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible, expectSessionTitle } from "../utils/waits"
 
@@ -8,14 +9,11 @@ const sessionID = "ses_timeline_state_regression"
 const userMessageID = "msg_user_regression"
 const assistantMessageID = "msg_assistant_regression"
 const editPartID = "prt_0001_edit"
-const textPartID = "prt_9999_text"
+const textPartID = `${assistantMessageID}:text:0`
 const title = "Timeline collapse state regression"
 const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
 
-type EventPayload = {
-  directory: string
-  payload: Record<string, unknown>
-}
+type EventPayload = OpenCodeEvent
 
 declare global {
   interface Window {
@@ -27,25 +25,11 @@ declare global {
 }
 
 const userMessage = {
-  info: {
-    id: userMessageID,
-    sessionID,
-    role: "user",
-    time: { created: 1700000000000 },
-    summary: { diffs: [] },
-    agent: "build",
-    model,
-  },
-  parts: [
-    {
-      id: "prt_user_text",
-      sessionID,
-      messageID: userMessageID,
-      type: "text",
-      text: "Please edit the file.",
-    },
-  ],
-}
+  id: userMessageID,
+  type: "user",
+  time: { created: 1700000000000 },
+  text: "Please edit the file.",
+} satisfies SessionMessageInfo
 
 const editPart = {
   id: editPartID,
@@ -74,31 +58,19 @@ const editPart = {
 }
 
 const streamedTextPart = {
-  id: textPartID,
-  sessionID,
-  messageID: assistantMessageID,
-  type: "text",
   text: "Streaming added a later assistant text part.",
 }
 
 const assistantMessage = {
-  info: {
-    id: assistantMessageID,
-    sessionID,
-    role: "assistant",
-    time: { created: 1700000001000 },
-    parentID: userMessageID,
-    modelID: model.modelID,
-    providerID: model.providerID,
-    mode: "build",
-    agent: "build",
-    path: { cwd: directory, root: directory },
-    cost: 0.01,
-    tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-    variant: "max",
-  },
-  parts: [editPart],
-}
+  id: assistantMessageID,
+  type: "assistant",
+  time: { created: 1700000001000 },
+  model: { id: model.modelID, providerID: model.providerID, variant: model.variant },
+  agent: "build",
+  cost: 0.01,
+  tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+  content: [toolContent(editPart)],
+} satisfies SessionMessageInfo
 
 test.describe("regression: session timeline local row state", () => {
   test("keeps a manually collapsed tool collapsed when later assistant content streams", async ({ page }) => {
@@ -106,7 +78,7 @@ test.describe("regression: session timeline local row state", () => {
     await mockServer(page, events)
     await configurePage(page)
 
-    await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+    await page.goto(sessionHref())
     await expectSessionTitle(page, title)
 
     const wrapper = page.locator(`[data-timeline-part-id="${editPartID}"]`).first()
@@ -119,15 +91,11 @@ test.describe("regression: session timeline local row state", () => {
     await wrapper.locator('[data-slot="collapsible-trigger"]').first().click()
     await expectExpanded(wrapper, false)
 
-    events.push({
-      directory,
-      payload: {
-        type: "message.part.updated",
-        properties: { part: streamedTextPart },
-      },
-    })
+    events.push(...textEvents())
 
-    await expect(page.locator(`[data-timeline-part-id="${textPartID}"]`).first()).toBeVisible({ timeout: 10_000 })
+    await expect(page.locator(`[data-timeline-part-id="${assistantMessageID}:text:0"]`).first()).toBeVisible({
+      timeout: 10_000,
+    })
 
     expect(await readToolState(page)).toEqual({
       expanded: false,
@@ -136,13 +104,13 @@ test.describe("regression: session timeline local row state", () => {
     })
   })
 
-  test("does not remount an edit diff when sibling parts or diff counts update", async ({ page }) => {
+  test("does not remount an edit diff when a sibling part arrives", async ({ page }) => {
     const events: EventPayload[] = []
     await installDiffProbe(page)
     await mockServer(page, events)
     await configurePage(page)
 
-    await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+    await page.goto(sessionHref())
     await expectSessionTitle(page, title)
 
     const wrapper = page.locator(`[data-timeline-part-id="${editPartID}"]`).first()
@@ -151,15 +119,11 @@ test.describe("regression: session timeline local row state", () => {
     await expectAppVisible(file)
     await markDiffProbe(page)
 
-    events.push({
-      directory,
-      payload: {
-        type: "message.part.updated",
-        properties: { part: streamedTextPart },
-      },
-    })
+    events.push(...textEvents())
 
-    await expect(page.locator(`[data-timeline-part-id="${textPartID}"]`).first()).toBeVisible({ timeout: 10_000 })
+    await expect(page.locator(`[data-timeline-part-id="${assistantMessageID}:text:0"]`).first()).toBeVisible({
+      timeout: 10_000,
+    })
     const siblingProbe = await readDiffProbe(page)
     expect(siblingProbe).toEqual({
       fileMarker: "before",
@@ -169,27 +133,6 @@ test.describe("regression: session timeline local row state", () => {
       shadowRoots: 0,
       toolMarker: "before",
     })
-
-    await markDiffProbe(page)
-    events.push({
-      directory,
-      payload: {
-        type: "message.part.updated",
-        properties: { part: editPartWithAdditions(2) },
-      },
-    })
-
-    await expect(wrapper.locator('[data-slot="diff-changes-additions"]').filter({ hasText: "+2" }).first()).toBeVisible(
-      { timeout: 10_000 },
-    )
-    expect(await readDiffProbe(page)).toEqual({
-      fileMarker: "before",
-      frameMarker: "before",
-      rowKey: `assistant-part:${userMessageID}:part:${assistantMessageID}:${editPartID}`,
-      rowMarker: "before",
-      shadowRoots: 0,
-      toolMarker: "before",
-    })
   })
 
   test("keeps a sticky edit header aligned with a multi-hunk diff", async ({ page }) => {
@@ -216,10 +159,10 @@ test.describe("regression: session timeline local row state", () => {
         },
       },
     }
-    await mockServer(page, events, [userMessage, { ...assistantMessage, parts: [part] }])
+    await mockServer(page, events, [userMessage, { ...assistantMessage, content: [toolContent(part)] }])
     await configurePage(page)
 
-    await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+    await page.goto(sessionHref())
     await expectSessionTitle(page, title)
 
     const wrapper = page.locator(`[data-timeline-part-id="${editPartID}"]`).first()
@@ -293,7 +236,7 @@ async function readToolState(page: Page) {
         row: element.closest("[data-timeline-row]")?.getAttribute("data-timeline-row"),
         streamedTextVisible: !!document.querySelector(`[data-timeline-part-id="${textPartID}"]`),
       }),
-      textPartID,
+      `${assistantMessageID}:text:0`,
     )
 }
 
@@ -355,22 +298,103 @@ async function readDiffProbe(page: Page) {
     })
 }
 
-function editPartWithAdditions(additions: number) {
+function toolContent(part: typeof editPart): SessionMessageAssistant["content"][number] {
   return {
-    ...editPart,
+    type: "tool",
+    id: part.callID,
+    name: part.tool,
+    time: { created: part.state.time.start, ran: part.state.time.start, completed: part.state.time.end },
     state: {
-      ...editPart.state,
-      metadata: {
-        ...editPart.state.metadata,
-        filediff: {
-          ...editPart.state.metadata.filediff,
-          additions,
-        },
-      },
+      status: "completed",
+      input: part.state.input,
+      content: [{ type: "text", text: part.state.output }],
+      metadata: part.state.metadata as Record<string, JsonValue>,
     },
   }
 }
 
+let eventSequence = -1
+
+function textEvents(): OpenCodeEvent[] {
+  return [
+    eventValue("session.text.started", { sessionID, assistantMessageID, ordinal: 0 }, 1),
+    eventValue(
+      "session.text.ended",
+      {
+        sessionID,
+        assistantMessageID,
+        ordinal: 0,
+        text: streamedTextPart.text,
+      },
+      1,
+    ),
+  ]
+}
+
+function toolEvents(part: typeof editPart): OpenCodeEvent[] {
+  return [
+    eventValue(
+      "session.tool.input.started",
+      {
+        sessionID,
+        assistantMessageID,
+        id: part.callID,
+        name: part.tool,
+      },
+      1,
+    ),
+    eventValue(
+      "session.tool.input.ended",
+      {
+        sessionID,
+        assistantMessageID,
+        id: part.callID,
+        text: JSON.stringify(part.state.input),
+      },
+      1,
+    ),
+    eventValue(
+      "session.tool.called",
+      {
+        sessionID,
+        assistantMessageID,
+        id: part.callID,
+        input: part.state.input,
+        executed: true,
+      },
+      1,
+    ),
+    eventValue(
+      "session.tool.success",
+      {
+        sessionID,
+        assistantMessageID,
+        id: part.callID,
+        content: [{ type: "text", text: part.state.output }],
+        metadata: part.state.metadata as Record<string, JsonValue>,
+        executed: true,
+      },
+      2,
+    ),
+  ]
+}
+
+function eventValue<Type extends OpenCodeEvent["type"]>(
+  type: Type,
+  data: Extract<OpenCodeEvent, { type: Type }>["data"],
+  version: 1 | 2,
+): Extract<OpenCodeEvent, { type: Type }> {
+  eventSequence++
+  return {
+    id: `evt_collapse_${eventSequence}`,
+    created: 1700000002000 + eventSequence,
+    type,
+    data,
+    location: { directory },
+    durable: { aggregateID: sessionID, seq: eventSequence, version },
+  } as unknown as Extract<OpenCodeEvent, { type: Type }>
+}
+
 function readExpanded(element: Element) {
   const trigger = element.querySelector('[data-slot="collapsible-trigger"]')
   const aria = trigger?.getAttribute("aria-expanded")
@@ -385,7 +409,12 @@ function readExpanded(element: Element) {
   return !!content && content.getBoundingClientRect().height > 0
 }
 
-async function mockServer(page: Page, events: EventPayload[], messages = [userMessage, assistantMessage]) {
+async function mockServer(
+  page: Page,
+  events: EventPayload[],
+  messages: SessionMessageInfo[] = [userMessage, assistantMessage],
+) {
+  eventSequence = -1
   await mockOpenCodeServer(page, {
     directory,
     project: project(),
@@ -437,3 +466,8 @@ function provider() {
 function base64Encode(value: string) {
   return Buffer.from(value, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")
 }
+
+function sessionHref() {
+  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+  return `/server/${base64Encode(server)}/session/${sessionID}`
+}

packages/app/e2e/regression/session-timeline-context-resize.spec.ts

@@ -1,4 +1,5 @@
 import { expect, test, type Page } from "@playwright/test"
+import type { JsonValue, OpenCodeEvent, SessionMessageAssistant, SessionMessageInfo } from "@opencode-ai/client/promise"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectAppVisible, expectSessionTitle } from "../utils/waits"
 import {
@@ -17,11 +18,6 @@ const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "ma
 const contextIDs = ["ctx_0100_read", "ctx_0101_glob", "ctx_0102_grep", "ctx_0103_list"]
 const followingTextID = `${id("msg_assistant", 10)}:text:0`
 
-type Message = {
-  info: Record<string, unknown> & { id: string; role: "user" | "assistant" }
-  parts: Record<string, unknown>[]
-}
-
 const messages = [...Array.from({ length: 8 }, (_, index) => turn(index, false)).flat(), ...turn(10, true)]
 
 test.describe("regression: session timeline context group resize", () => {
@@ -30,7 +26,7 @@ test.describe("regression: session timeline context group resize", () => {
     await mockServer(page)
     await configurePage(page)
 
-    await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+    await page.goto(sessionHref())
     await expectSessionTitle(page, title)
     await expectAppVisible(page.locator(`[data-timeline-part-ids="${contextIDs.join(",")}"]`).first())
     await expectAppVisible(page.locator(`[data-timeline-part-id="${followingTextID}"]`).first())
@@ -45,7 +41,7 @@ test.describe("regression: session timeline context group resize", () => {
   })
 
   test("paints a stable exploring to explored transition", async ({ page }) => {
-    const events: { directory: string; payload: Record<string, unknown> }[] = []
+    const events: OpenCodeEvent[] = []
     await page.setViewportSize({ width: 1400, height: 900 })
     await mockServer(page, events, [
       ...Array.from({ length: 8 }, (_, index) => turn(index, false)).flat(),
@@ -53,7 +49,7 @@ test.describe("regression: session timeline context group resize", () => {
     ])
     await configurePage(page)
 
-    await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+    await page.goto(sessionHref())
     await expectSessionTitle(page, title)
     const devtools = await page.context().newCDPSession(page)
     await devtools.send("Emulation.setCPUThrottlingRate", { rate: 4 })
@@ -75,25 +71,21 @@ test.describe("regression: session timeline context group resize", () => {
     })
     await startVisualProbe(page, regions)
     for (const [index, delay] of [120, 350, 80, 500].entries()) {
-      events.push({
-        directory,
-        payload: {
-          type: "message.part.updated",
-          properties: {
-            part: contextTool(
-              contextIDs[index]!,
-              id("msg_assistant", 10),
-              ["read", "glob", "grep", "list"][index]!,
-              [
-                { filePath: "src/recent-a.ts" },
-                { path: directory, pattern: "**/*.ts" },
-                { path: directory, pattern: "Explored" },
-                { path: "src" },
-              ][index]!,
-            ),
-          },
-        },
-      })
+      events.push(
+        ...toolEvents(
+          contextTool(
+            contextIDs[index]!,
+            id("msg_assistant", 10),
+            ["read", "glob", "grep", "list"][index]!,
+            [
+              { filePath: "src/recent-a.ts" },
+              { path: directory, pattern: "**/*.ts" },
+              { path: directory, pattern: "Explored" },
+              { path: "src" },
+            ][index]!,
+          ),
+        ),
+      )
       await page.waitForTimeout(delay)
     }
 
@@ -211,74 +203,51 @@ async function sampleExpansion(page: Page) {
   )
 }
 
-function turn(index: number, target: boolean, status: "running" | "completed" = "completed"): Message[] {
+function turn(index: number, target: boolean, status: "running" | "completed" = "completed"): SessionMessageInfo[] {
   const userID = id("msg_user", index)
   const assistantID = id("msg_assistant", index)
+  const content: SessionMessageAssistant["content"] = target
+    ? [
+        toolContent(
+          contextTool(
+            contextIDs[0]!,
+            assistantID,
+            "read",
+            { filePath: "src/recent-a.ts", offset: 0, limit: 120 },
+            status,
+          ),
+        ),
+        toolContent(contextTool(contextIDs[1]!, assistantID, "glob", { path: directory, pattern: "**/*.ts" }, status)),
+        toolContent(
+          contextTool(
+            contextIDs[2]!,
+            assistantID,
+            "grep",
+            { path: directory, pattern: "Explored", include: "*.ts" },
+            status,
+          ),
+        ),
+        toolContent(contextTool(contextIDs[3]!, assistantID, "list", { path: "src" }, status)),
+        { type: "text", text: "This assistant text is immediately after the explored context group." },
+      ]
+    : [{ type: "text", text: `Assistant filler ${index}. ${"filler ".repeat(60)}` }]
   return [
     {
-      info: {
-        id: userID,
-        sessionID,
-        role: "user",
-        time: { created: 1700000000000 + index * 10_000 },
-        summary: { diffs: [] },
-        agent: "build",
-        model,
-      },
-      parts: [{ id: id("prt_user", index), sessionID, messageID: userID, type: "text", text: `User message ${index}` }],
+      id: userID,
+      type: "user",
+      time: { created: 1700000000000 + index * 10_000 },
+      text: `User message ${index}`,
     },
     {
-      info: {
-        id: assistantID,
-        sessionID,
-        role: "assistant",
-        time: { created: 1700000000000 + index * 10_000 + 1_000, completed: 1700000000000 + index * 10_000 + 2_000 },
-        parentID: userID,
-        modelID: model.modelID,
-        providerID: model.providerID,
-        mode: "build",
-        agent: "build",
-        path: { cwd: directory, root: directory },
-        cost: 0.01,
-        tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-        variant: "max",
-        finish: "stop",
-      },
-      parts: target
-        ? [
-            contextTool(
-              contextIDs[0]!,
-              assistantID,
-              "read",
-              { filePath: "src/recent-a.ts", offset: 0, limit: 120 },
-              status,
-            ),
-            contextTool(contextIDs[1]!, assistantID, "glob", { path: directory, pattern: "**/*.ts" }, status),
-            contextTool(
-              contextIDs[2]!,
-              assistantID,
-              "grep",
-              { path: directory, pattern: "Explored", include: "*.ts" },
-              status,
-            ),
-            contextTool(contextIDs[3]!, assistantID, "list", { path: "src" }, status),
-            {
-              id: followingTextID,
-              sessionID,
-              messageID: assistantID,
-              type: "text",
-              text: "This assistant text is immediately after the explored context group.",
-            },
-          ]
-        : [
-            {
-              id: id("prt_text", index),
-              sessionID,
-              messageID: assistantID,
-              type: "text",
-              text: `Assistant filler ${index}. ${"filler ".repeat(60)}`,
-            },
-          ],
+      id: assistantID,
+      type: "assistant",
+      time: { created: 1700000000000 + index * 10_000 + 1_000, completed: 1700000000000 + index * 10_000 + 2_000 },
+      model: { id: model.modelID, providerID: model.providerID, variant: model.variant },
+      agent: "build",
+      cost: 0.01,
+      tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+      finish: "stop",
+      content,
     },
   ]
 }
@@ -308,11 +277,76 @@ function contextTool(
   }
 }
 
-async function mockServer(
-  page: Page,
-  events: { directory: string; payload: Record<string, unknown> }[] = [],
-  fixtureMessages = messages,
-) {
+type ContextTool = ReturnType<typeof contextTool>
+
+function toolContent(part: ContextTool): SessionMessageAssistant["content"][number] {
+  const base = {
+    type: "tool" as const,
+    id: part.callID,
+    name: part.tool,
+    time: {
+      created: part.state.time.start,
+      ran: part.state.time.start,
+      ...(part.state.status === "completed" ? { completed: part.state.time.end } : {}),
+    },
+  }
+  if (part.state.status === "running")
+    return {
+      ...base,
+      state: {
+        status: "running",
+        input: part.state.input as Record<string, JsonValue>,
+        metadata: part.state.metadata as Record<string, JsonValue>,
+      },
+    }
+  return {
+    ...base,
+    state: {
+      status: "completed",
+      input: part.state.input as Record<string, JsonValue>,
+      content: [{ type: "text", text: part.state.output }],
+      metadata: part.state.metadata as Record<string, JsonValue>,
+    },
+  }
+}
+
+let eventSequence = -1
+
+function toolEvents(part: ContextTool): OpenCodeEvent[] {
+  return [
+    eventValue(
+      "session.tool.success",
+      {
+        sessionID,
+        assistantMessageID: part.messageID,
+        id: part.callID,
+        content: [{ type: "text", text: part.state.output }],
+        metadata: part.state.metadata,
+        executed: true,
+      },
+      2,
+    ),
+  ]
+}
+
+function eventValue<Type extends OpenCodeEvent["type"]>(
+  type: Type,
+  data: Extract<OpenCodeEvent, { type: Type }>["data"],
+  version: 1 | 2,
+): Extract<OpenCodeEvent, { type: Type }> {
+  eventSequence++
+  return {
+    id: `evt_context_resize_${eventSequence}`,
+    created: 1700000002000 + eventSequence,
+    type,
+    data,
+    location: { directory },
+    durable: { aggregateID: sessionID, seq: eventSequence, version },
+  } as unknown as Extract<OpenCodeEvent, { type: Type }>
+}
+
+async function mockServer(page: Page, events: OpenCodeEvent[] = [], fixtureMessages = messages) {
+  eventSequence = -1
   await mockOpenCodeServer(page, {
     directory,
     project: project(),
@@ -372,3 +406,8 @@ function provider() {
 function base64Encode(value: string) {
   return Buffer.from(value, "utf8").toString("base64").replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "")
 }
+
+function sessionHref() {
+  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+  return `/server/${base64Encode(server)}/session/${sessionID}`
+}

packages/app/e2e/regression/session-timeline-file-state.spec.ts

@@ -1,30 +1,5 @@
 import { expect, test } from "@playwright/test"
-import {
-  assistantMessage,
-  partUpdated,
-  setupTimeline,
-  toolPart,
-  userMessage,
-} from "../performance/timeline-stability/fixture"
-
-test("updates edit diagnostics without resetting manual collapse state", async ({ page }) => {
-  const editID = "prt_diagnostics_edit"
-  const base = editPart(editID, [])
-  const timeline = await setupTimeline(page, {
-    messages: [userMessage(), assistantMessage([base])],
-    settings: { editToolPartsExpanded: true },
-  })
-  const trigger = page.locator(`[data-timeline-part-id="${editID}"] [data-slot="collapsible-trigger"]`).first()
-  await trigger.click()
-  await expect(trigger).toHaveAttribute("aria-expanded", "false")
-  await timeline.send(
-    partUpdated(editPart(editID, [diagnostic("First failure", 2), diagnostic("Second failure", 4)])),
-    300,
-  )
-  await expect(trigger).toHaveAttribute("aria-expanded", "false")
-  await timeline.send(partUpdated(editPart(editID, [])), 300)
-  await expect(trigger).toHaveAttribute("aria-expanded", "false")
-})
+import { assistantMessage, setupTimeline, toolPart, userMessage } from "../performance/timeline-stability/fixture"
 
 test("preserves nested patch file state through outer collapse and reopen", async ({ page }) => {
   const patchID = "prt_nested_patch"
@@ -68,25 +43,6 @@ function patchFile(filePath: string, type: "add" | "update" | "delete") {
   }
 }
 
-function editPart(id: string, diagnostics: Record<string, unknown>[]) {
-  return toolPart(
-    id,
-    "edit",
-    "completed",
-    { filePath: "src/edit.ts" },
-    {
-      metadata: {
-        filediff: { file: "src/edit.ts", additions: 1, deletions: 1, before: source(false), after: source(true) },
-        diagnostics,
-      },
-    },
-  )
-}
-
-function diagnostic(message: string, line: number) {
-  return { message, severity: 1, range: { start: { line, character: 0 }, end: { line, character: 2 } } }
-}
-
 function source(changed: boolean) {
   return Array.from({ length: 12 }, (_, index) => `export const value${index} = ${changed ? index + 1 : index}\n`).join(
     "",

packages/app/e2e/regression/session-timeline-history-root.spec.ts

@@ -1,4 +1,5 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
+import type { SessionMessageAssistant } from "@opencode-ai/client/promise"
 import { expect, test, type Page } from "@playwright/test"
 import {
   assistantMessage,
@@ -17,6 +18,7 @@ import { installSseTransport } from "../utils/sse-transport"
 import { expectSessionTitle } from "../utils/waits"
 
 const messagePageSize = 200
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 const messages = Array.from({ length: messagePageSize / 2 + 1 }, (_, index) => {
   const id = `msg_${String(index + 1001).padStart(4, "0")}_history_root_user`
   return [
@@ -29,19 +31,19 @@ const messages = Array.from({ length: messagePageSize / 2 + 1 }, (_, index) => {
     }),
   ]
 }).flat()
-const assistants = messages.filter((message) => message.info.role === "assistant")
+const assistants = messages.filter((message): message is SessionMessageAssistant => message.type === "assistant")
 const lastAssistant = assistants.at(-1)!
-const lastPartID = `${assistants.at(-1)!.info.id}:text:0`
-const userPartID = `${messages.at(-2)!.info.id}:text:0`
+const lastPartID = `${assistants.at(-1)!.id}:text:0`
+const userPartID = `${messages.at(-2)!.id}:text:0`
 const completed = {
-  ...lastAssistant.info,
-  time: { ...lastAssistant.info.time, completed: lastAssistant.info.time.created + 15_000 },
+  ...lastAssistant,
+  time: { ...lastAssistant.time, completed: lastAssistant.time.created + 15_000 },
 }
 const scenarios = [
   { name: "completion", info: completed, idleFirst: false, interrupted: false },
   {
     name: "interruption",
-    info: { ...completed, error: { name: "MessageAbortedError", data: { message: "Stopped" } } },
+    info: { ...completed, error: { type: "MessageAbortedError", message: "Stopped" } },
     idleFirst: true,
     interrupted: true,
   },
@@ -56,12 +58,11 @@ for (const scenario of scenarios) {
     const roots: { sessionID: string; messageID: string }[] = []
     const sequence: string[] = []
     const history = Promise.withResolvers<void>()
-    const transport = await installSseTransport<{ directory: string; payload: Record<string, unknown> }>(page, {
-      server: `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`,
+    const transport = await installSseTransport(page, {
+      server,
       retry: 20,
     })
     await mockOpenCodeServer(page, {
-      protocol: "v2",
       directory,
       project: project(),
       provider: {
@@ -94,15 +95,15 @@ for (const scenario of scenarios) {
       },
       message: (requestedSessionID, messageID) => {
         if (requestedSessionID !== sessionID) return
-        return messages.find((item) => item.info.id === messageID)
+        return messages.find((item) => item.id === messageID)
       },
       pageMessages: (_, limit, before) => {
         pages.push({ before, limit })
-        const end = before ? messages.findIndex((message) => message.info.id === before) : messages.length
+        const end = before ? messages.findIndex((message) => message.id === before) : messages.length
         const start = Math.max(0, end - limit)
         return {
           items: messages.slice(start, end),
-          cursor: start > 0 ? messages[start]!.info.id : undefined,
+          cursor: start > 0 ? messages[start]!.id : undefined,
         }
       },
     })
@@ -152,7 +153,7 @@ for (const scenario of scenarios) {
       requestAnimationFrame(() => setTimeout(sample, 0))
     })
 
-    await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+    await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
     await transport.waitForConnection()
     await expectSessionTitle(page, title)
     await expect(page.locator(`[data-timeline-part-id="${lastPartID}"]`)).toBeVisible()
@@ -169,7 +170,7 @@ for (const scenario of scenarios) {
     expect(sequence.slice(0, 3)).toEqual([
       "messages:start:latest",
       "messages:end:latest",
-      `messages:start:${messages.at(-messagePageSize)!.info.id}`,
+      `messages:start:${messages.at(-messagePageSize)!.id}`,
     ])
     await page.evaluate(() => {
       ;(
@@ -187,7 +188,7 @@ for (const scenario of scenarios) {
     await waitForProbeSamples(page, beforeHistory)
     expect(pages).toEqual([
       { before: undefined, limit: messagePageSize },
-      { before: messages.at(-messagePageSize)!.info.id, limit: messagePageSize },
+      { before: messages.at(-messagePageSize)!.id, limit: messagePageSize },
     ])
     expect(roots).toEqual([])
 

packages/app/e2e/regression/session-timeline-lifecycle-state.spec.ts

@@ -5,9 +5,11 @@ import {
   messageUpdated,
   partUpdated,
   reasoningPart,
+  renderedPartID,
   setupTimeline,
   shell,
   status,
+  stepStarted,
   textPart,
   userMessage,
 } from "../performance/timeline-stability/fixture"
@@ -65,7 +67,7 @@ test("transitions thinking and hidden reasoning through busy to idle", async ({
   await timeline.send(partUpdated(shell("prt_reasoning_shell", "running")), 160)
   await expect(page.locator('[data-timeline-row="Thinking"]')).toBeVisible()
   await timeline.send(partUpdated(shell("prt_reasoning_shell", "completed", "done")), 180)
-  await timeline.send(messageUpdated(completedAssistantInfo(assistant.info)), 100)
+  await timeline.send(messageUpdated(completedAssistantInfo(assistant)), 100)
   await timeline.send(status("idle"), 300)
   await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
   await expect(page.locator(`[data-timeline-part-id="${reasoningID}"]`)).toHaveCount(0)
@@ -97,14 +99,16 @@ test("moves busy through retry and recovery to final idle content", async ({ pag
   await timeline.send(status("retry"), 180)
   await expect(page.locator('[data-timeline-row="Retry"]')).toBeVisible()
   await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-  await timeline.send(status("busy", 2), 180)
+  await timeline.send(stepStarted(assistant), 180)
+  await expect(page.locator('[data-timeline-row="Retry"]')).toHaveCount(0)
   await expect(page.locator('[data-timeline-row="Thinking"]')).toBeVisible()
   await timeline.send(partUpdated(textPart("prt_recovered", "Recovered response")), 140)
-  await timeline.send(messageUpdated(completedAssistantInfo(assistant.info)), 100)
+  await timeline.send(messageUpdated(completedAssistantInfo(assistant)), 100)
   await timeline.send(status("idle"), 350)
-  await expect(page.locator('[data-timeline-row="Retry"]')).toHaveCount(0)
   await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-  await expect(page.locator('[data-timeline-part-id="prt_recovered"]')).toContainText("Recovered response")
+  await expect(page.locator(`[data-timeline-part-id="${renderedPartID("prt_recovered")}"]`)).toContainText(
+    "Recovered response",
+  )
 })
 
 function lines(count: number) {

packages/app/e2e/regression/session-timeline-notices.spec.ts

@@ -39,7 +39,7 @@ test("renders current protocol notices in CLI order", async ({ page }) => {
       ownerWarnings.push(message.text())
   })
   await setupTimeline(page, {
-    currentMessages: [
+    sessionMessages: [
       user,
       { id: "msg_agent", type: "agent-switched", agent: "explore", time: { created: 2 } },
       assistant(true),
@@ -74,7 +74,7 @@ test("renders current protocol notices in CLI order", async ({ page }) => {
 })
 
 test("moves blocking work to the background with Ctrl+B", async ({ page }) => {
-  await setupTimeline(page, { currentMessages: [user, assistant(false, true)] })
+  await setupTimeline(page, { sessionMessages: [user, assistant(false, true)] })
   const card = page.locator('[data-component="task-tool-card"]')
   await expect(card).toBeVisible()
   await expect(card).toContainText("Inspect code")
@@ -92,14 +92,14 @@ test("moves blocking work to the background with Ctrl+B", async ({ page }) => {
 })
 
 test("waits for completion before labeling requested background work", async ({ page }) => {
-  await setupTimeline(page, { currentMessages: [user, assistant(false, true, undefined, true)] })
+  await setupTimeline(page, { sessionMessages: [user, assistant(false, true, undefined, true)] })
   await expect(page.locator('[data-component="task-tool-card"]')).not.toContainText("(background)")
 })
 
 test("navigates from a running subagent card and hides background controls in the child", async ({ page }) => {
   const childID = "ses_running_child"
   await setupTimeline(page, {
-    currentMessages: [user, assistant(false, true, childID)],
+    sessionMessages: [user, assistant(false, true, childID)],
     sessions: [session(), session({ id: childID, parentID: sessionID, title: "Sleep for 5 minutes" })],
     sessionStatus: { [sessionID]: { type: "busy" }, [childID]: { type: "busy" } },
   })
@@ -113,7 +113,7 @@ test("navigates from a running subagent card and hides background controls in th
 test("shows a badge for active background work", async ({ page }) => {
   const childID = "ses_background_child"
   await setupTimeline(page, {
-    currentMessages: [user, assistant(true)],
+    sessionMessages: [user, assistant(true)],
     sessions: [session(), session({ id: childID, parentID: sessionID })],
     sessionStatus: { [childID]: { type: "busy" } },
   })
@@ -125,7 +125,7 @@ test("separates blocking and already-backgrounded work into two rows", async ({
   const backgroundID = "ses_background_existing"
   const blockingID = "ses_background_blocking"
   const timeline = await setupTimeline(page, {
-    currentMessages: [
+    sessionMessages: [
       user,
       {
         id: "msg_backgrounded",
@@ -203,7 +203,12 @@ test("separates blocking and already-backgrounded work into two rows", async ({
     page.locator('[data-timeline-part-id="call_shell_backgrounded"] [data-component="text-shimmer"]'),
   ).toHaveAttribute("data-active", "true")
 
-  await timeline.send(event("session.status", { sessionID: backgroundID, status: { type: "idle" } }))
+  await timeline.transport.send({
+    id: "evt_background_succeeded",
+    created: Date.now(),
+    type: "session.execution.succeeded",
+    data: { sessionID: backgroundID },
+  } as never)
   await expect(backgroundCard.locator('[data-component="session-progress-indicator-v2"]')).toHaveCount(0)
   await expect(backgroundCard).toContainText("Background task (background)")
 })

packages/app/e2e/regression/session-timeline-projection.spec.ts

@@ -71,33 +71,20 @@ test.describe("session timeline projection", () => {
   test("projects gaps, dividers, assistant parts, and errors together", async ({ page }) => {
     const firstUser = userMessage(
       [
-        userText("The user made the following comment regarding lines 4 through 8 of src/a.ts: Keep this stable", {
-          id: "prt_comment",
-          synthetic: true,
-          metadata: {
-            opencodeComment: {
-              path: "src/a.ts",
-              selection: { startLine: 4, startChar: 0, endLine: 8, endChar: 0 },
-              comment: "Keep this stable",
-            },
-          },
-        }),
+        userText("Keep this stable", { id: "prt_comment" }),
         userText("Continue after the comment", { id: "prt_visible_user" }),
       ],
       { summary: { diffs: Array.from({ length: 11 }, (_, index) => summaryDiff(index)) } },
     )
     const aborted = assistantMessage([{ id: "prt_before_abort", type: "text", text: "Before interruption" }], {
       id: "msg_1001_assistant_aborted",
-      error: { name: "MessageAbortedError", data: { message: "Stopped" } },
+      error: { type: "MessageAbortedError", message: "Stopped" },
     })
     const failed = assistantMessage([{ id: "prt_after_abort", type: "text", text: "After interruption" }], {
       id: "msg_1002_assistant_failed",
       error: {
-        name: "APIError",
-        data: {
-          message: JSON.stringify({ error: { type: "provider_error", message: "Visible provider failure" } }),
-          isRetryable: false,
-        },
+        type: "APIError",
+        message: "Visible provider failure",
       },
       created: 1700000003000,
     })
@@ -122,52 +109,11 @@ test.describe("session timeline projection", () => {
     await expect(page.locator('[data-timeline-row="TurnGap"]')).toBeVisible()
   })
 
-  test("renders legacy synthetic comments as ordinary V2 user text", async ({ page }) => {
-    const user = userMessage(
-      [
-        userText("The user made the following comment regarding lines 4 through 8 of src/a.ts: Keep this stable", {
-          id: "prt_comment_only",
-          synthetic: true,
-          metadata: {
-            opencodeComment: {
-              path: "src/a.ts",
-              selection: { startLine: 4, startChar: 0, endLine: 8, endChar: 0 },
-              comment: "Keep this stable",
-            },
-          },
-        }),
-        userText("Continue after the comment", { id: "prt_comment_visible" }),
-      ],
-      { summary: { diffs: Array.from({ length: 11 }, (_, index) => summaryDiff(index)) } },
-    )
-    const nextUser = userMessage(undefined, { id: "msg_2000_diff_next_user", created: 1700000010000 })
-    const nextAssistant = assistantMessage([], {
-      id: "msg_2001_diff_next_assistant",
-      parentID: "msg_2000_diff_next_user",
-      created: 1700000011000,
-    })
-    await setupTimeline(page, {
-      messages: [user, assistantMessage(), nextUser, nextAssistant],
-      settings: { newLayoutDesigns: false },
-    })
-    const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
-    await scroller.evaluate((element) => (element.scrollTop = 0))
-
-    await expect(
-      page.getByText(
-        "The user made the following comment regarding lines 4 through 8 of src/a.ts: Keep this stable Continue after the comment",
-        { exact: true },
-      ),
-    ).toBeVisible()
-    await expect(page.locator('[data-timeline-row="CommentStrip"]')).toHaveCount(0)
-    await expect(page.locator('[data-timeline-row="DiffSummary"]')).toHaveCount(0)
-  })
-
   test("renders interruption independently when the turn is not compacted", async ({ page }) => {
     const user = userMessage()
     const before = assistantMessage([{ id: "prt_before", type: "text", text: "Before" }], {
       id: "msg_1001_before",
-      error: { name: "MessageAbortedError", data: { message: "Stopped" } },
+      error: { type: "MessageAbortedError", message: "Stopped" },
     })
     const after = assistantMessage([{ id: "prt_after", type: "text", text: "After" }], {
       id: "msg_1002_after",

packages/app/e2e/regression/session-timeline-reducer-projection.spec.ts

@@ -4,6 +4,7 @@ import {
   completedAssistantInfo,
   messageUpdated,
   partUpdated,
+  renderedPartID,
   setupTimeline,
   shell,
   status,
@@ -36,8 +37,10 @@ test("reducer-hardening: converges when idle arrives before final part and messa
   await timeline.send(status("busy"), 100)
   await timeline.send(status("idle"), 100)
   await timeline.send(partUpdated(textPart(textID, "Final after early idle")), 120)
-  await timeline.send(messageUpdated(completedAssistantInfo(assistant.info)), 250)
+  await timeline.send(messageUpdated(completedAssistantInfo(assistant)), 250)
 
   await expect(page.locator('[data-timeline-row="Thinking"]')).toHaveCount(0)
-  await expect(page.locator(`[data-timeline-part-id="${textID}"]`)).toContainText("Final after early idle")
+  await expect(page.locator(`[data-timeline-part-id="${renderedPartID(textID)}"]`)).toContainText(
+    "Final after early idle",
+  )
 })

packages/app/e2e/regression/session-timeline-shell-outline.spec.ts

@@ -13,7 +13,7 @@ for (const deviceScaleFactor of [1.25, 1.5]) {
     const shellID = "prt_shell_outline"
     const timeline = await setupTimeline(page, {
       messages: [userMessage(), assistantMessage([shell(shellID, "completed", "shell output")])],
-      settings: { newLayoutDesigns: true, shellToolPartsExpanded: true },
+      settings: { shellToolPartsExpanded: true },
       reducedMotion: true,
       deviceScaleFactor,
     })
@@ -82,7 +82,7 @@ test("keeps the patch card inside a fractionally short virtual row", async ({ pa
         toolPart(patchID, "apply_patch", "completed", { files: [file.filePath] }, { metadata: { files: [file] } }),
       ]),
     ],
-    settings: { editToolPartsExpanded: true, newLayoutDesigns: true },
+    settings: { editToolPartsExpanded: true },
     reducedMotion: true,
   })
   const part = page.locator(`[data-timeline-part-id="${patchID}"]`)

packages/app/e2e/regression/session-timeline-tool-projection.spec.ts

@@ -83,6 +83,26 @@ test("labels all web search provider variants", async ({ page }) => {
   await expect(page.getByRole("button", { name: /^Web Search/ })).toBeVisible()
 })
 
+test("labels completed searches with result counts", async ({ page }) => {
+  const glob = "prt_glob_count"
+  const grep = "prt_grep_count"
+  await setupTimeline(page, {
+    messages: [
+      userMessage(),
+      assistantMessage([
+        toolPart(glob, "glob", "completed", { path: ".", pattern: "**/*.ts" }, { metadata: { count: 1 } }),
+        toolPart(grep, "grep", "completed", { path: ".", pattern: "value" }, { metadata: { matches: 12 } }),
+      ]),
+    ],
+  })
+
+  const group = page.locator(`[data-timeline-part-ids="${glob},${grep}"]`)
+  await group.locator('[data-slot="collapsible-trigger"]').click()
+  const rows = group.locator('[data-component="tool-trigger"]')
+  await expect(rows.nth(0)).toContainText("(1 match)")
+  await expect(rows.nth(1)).toContainText("(12 matches)")
+})
+
 test("labels V2 read tools from their path input", async ({ page }) => {
   const id = "prt_read_path"
   await setupTimeline(page, {

packages/app/e2e/regression/session-timeline-tool-state.spec.ts

@@ -1,77 +0,0 @@
-import { expect, test } from "@playwright/test"
-import {
-  assistantMessage,
-  partUpdated,
-  setupTimeline,
-  toolPart,
-  userMessage,
-} from "../performance/timeline-stability/fixture"
-
-test("updates expanded web search links without resetting expansion", async ({ page }) => {
-  const searchID = "prt_websearch_mutation"
-  const input = { query: "timeline stability" }
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(),
-      assistantMessage([toolPart(searchID, "websearch", "completed", input, { output: "https://example.com/one" })]),
-    ],
-  })
-  const wrapper = page.locator(`[data-timeline-part-id="${searchID}"]`)
-  const trigger = wrapper.locator('[data-slot="collapsible-trigger"]')
-  await trigger.click()
-  await expect(trigger).toHaveAttribute("aria-expanded", "true")
-  await timeline.send(
-    partUpdated(
-      toolPart(searchID, "websearch", "completed", input, {
-        output: "https://example.com/one\nhttps://example.com/two",
-      }),
-    ),
-    300,
-  )
-  await expect(trigger).toHaveAttribute("aria-expanded", "true")
-  await expect(wrapper.locator('a[href="https://example.com/two"]')).toBeVisible()
-})
-
-test("preserves an expanded tool error card across duplicate delivery", async ({ page }) => {
-  const toolID = "prt_duplicate_error"
-  const failed = toolPart(toolID, "bash", "error", { command: "exit 1" }, { error: "Command failed visibly" })
-  const timeline = await setupTimeline(page, { messages: [userMessage(), assistantMessage([failed])] })
-  const wrapper = page.locator(`[data-timeline-part-id="${toolID}"]`)
-  const trigger = wrapper.locator('[data-slot="collapsible-trigger"]')
-  await trigger.click()
-  await expect(trigger).toHaveAttribute("aria-expanded", "true")
-  await timeline.send(partUpdated(failed), 150)
-  await timeline.send(partUpdated(failed), 250)
-  await expect(trigger).toHaveAttribute("aria-expanded", "true")
-  await expect(wrapper).toContainText("Command failed visibly")
-})
-
-test("renders multiple question answers and preserves open state on answer updates", async ({ page }) => {
-  const questionID = "prt_multi_question"
-  const input = {
-    questions: [
-      { header: "First", question: "First choice?", options: [] },
-      { header: "Second", question: "Second choice?", options: [], multiple: true },
-    ],
-  }
-  const timeline = await setupTimeline(page, {
-    messages: [
-      userMessage(),
-      assistantMessage([
-        toolPart(questionID, "question", "completed", input, { metadata: { answers: [["A"], ["B", "C"]] } }),
-      ]),
-    ],
-  })
-  const wrapper = page.locator(`[data-timeline-part-id="${questionID}"]`)
-  const trigger = wrapper.locator('[data-slot="collapsible-trigger"]')
-  await expect(trigger).toHaveAttribute("aria-expanded", "true")
-  await timeline.send(
-    partUpdated(
-      toolPart(questionID, "question", "completed", input, { metadata: { answers: [["Updated"], ["B", "C"]] } }),
-    ),
-    300,
-  )
-  await expect(trigger).toHaveAttribute("aria-expanded", "true")
-  await expect(wrapper).toContainText("Updated")
-  await expect(wrapper).toContainText("B, C")
-})

packages/app/e2e/regression/session-timeline-transport.spec.ts

@@ -1,43 +1,44 @@
 import { expect, test, type Page } from "@playwright/test"
-import { partUpdated, setupTimeline, textPart } from "../performance/timeline-stability/fixture"
+import { partUpdated, renderedPartID, setupTimeline, textPart } from "../performance/timeline-stability/fixture"
 
 test("keeps one connection open while delivering multiple events", async ({ page }) => {
   const timeline = await setupTimeline(page)
 
-  const first = await timeline.transport.send(partUpdated(textPart("prt_transport_first", "first event")))
-  const second = await timeline.transport.send(partUpdated(textPart("prt_transport_second", "second event")))
+  const first = (await timeline.transport.burst(partUpdated(textPart("prt_transport_first", "first event")))).at(-1)!
+  const second = (await timeline.transport.burst(partUpdated(textPart("prt_transport_second", "second event")))).at(-1)!
 
   await timeline.waitForPart("prt_transport_first")
   await timeline.waitForPart("prt_transport_second")
   expect(first.connectionID).toBe(second.connectionID)
   await expect.poll(async () => (await timeline.transport.connections()).length).toBe(1)
-  expect(await timeline.transport.acknowledgements()).toHaveLength(2)
+  expect(await timeline.transport.acknowledgements()).toHaveLength(4)
 })
 
 test("delivers a burst from one stream chunk", async ({ page }) => {
   const timeline = await setupTimeline(page)
   const acknowledgements = await timeline.transport.burst([
-    partUpdated(textPart("prt_transport_burst_a", "burst a")),
-    partUpdated(textPart("prt_transport_burst_b", "burst b")),
+    ...partUpdated(textPart("prt_transport_burst_a", "burst a")),
+    ...partUpdated(textPart("prt_transport_burst_b", "burst b")),
   ])
 
   await timeline.waitForPart("prt_transport_burst_a")
   await timeline.waitForPart("prt_transport_burst_b")
-  expect(acknowledgements.map((item) => item.chunkCount)).toEqual([1, 1])
-  expect(new Set(acknowledgements.map((item) => item.deliveryID)).size).toBe(2)
+  expect(acknowledgements.map((item) => item.chunkCount)).toEqual([1, 1, 1, 1])
+  expect(new Set(acknowledgements.map((item) => item.deliveryID)).size).toBe(4)
 })
 
 test("parses split JSON and a split multibyte code point", async ({ page }) => {
   const timeline = await setupTimeline(page)
-  const payload = partUpdated(textPart("prt_transport_split", "split snowman \u2603\u2603\u2603"))
+  const [started, payload] = partUpdated(textPart("prt_transport_split", "split snowman \u2603\u2603\u2603"))
+  await timeline.transport.send(started!)
   const encoded = new TextEncoder().encode(`data: ${JSON.stringify(payload)}\n\n`)
   const snowman = new TextEncoder().encode("\u2603")[0]!
   const multibyte = encoded.indexOf(snowman)
 
-  const acknowledgement = await timeline.transport.split(payload, [9, multibyte + 1, multibyte + 2])
+  const acknowledgement = await timeline.transport.split(payload!, [9, multibyte + 1, multibyte + 2])
 
   await timeline.waitForPart("prt_transport_split")
-  await expect(page.locator('[data-timeline-part-id="prt_transport_split"]')).toContainText(
+  await expect(page.locator(`[data-timeline-part-id="${renderedPartID("prt_transport_split")}"]`)).toContainText(
     "split snowman \u2603\u2603\u2603",
   )
   expect(acknowledgement.chunkCount).toBe(4)
@@ -46,12 +47,11 @@ test("parses split JSON and a split multibyte code point", async ({ page }) => {
 test("delivers server heartbeat without mutating the timeline", async ({ page }) => {
   const timeline = await setupTimeline(page)
   const partID = "prt_transport_heartbeat_sentinel"
-  const sentinel = await timeline.transport.send(partUpdated(textPart(partID, "heartbeat sentinel")))
+  const sentinel = (await timeline.transport.burst(partUpdated(textPart(partID, "heartbeat sentinel")))).at(-1)!
   await timeline.waitForPart(partID)
-  await expect(page.locator(`[data-timeline-part-id="${partID}"] [data-component="markdown"]`)).toHaveAttribute(
-    "data-markdown-ready",
-    "",
-  )
+  await expect(
+    page.locator(`[data-timeline-part-id="${renderedPartID(partID)}"] [data-component="markdown"]`),
+  ).toHaveAttribute("data-markdown-ready", "")
   const before = await timelineRows(page)
   const heartbeat = await timeline.transport.heartbeat()
 
@@ -66,7 +66,7 @@ test("reconnects after a clean close", async ({ page }) => {
 
   await timeline.transport.close()
   const second = await timeline.transport.waitForConnection({ after: first.id })
-  await timeline.transport.send(partUpdated(textPart("prt_transport_close", "after close")))
+  await timeline.transport.burst(partUpdated(textPart("prt_transport_close", "after close")))
 
   await timeline.waitForPart("prt_transport_close")
   expect(second.id).toBeGreaterThan(first.id)
@@ -79,7 +79,7 @@ test("reconnects after a stream error", async ({ page }) => {
 
   await timeline.transport.error("contract failure")
   const second = await timeline.transport.waitForConnection({ after: first.id })
-  await timeline.transport.send(partUpdated(textPart("prt_transport_error", "after error")))
+  await timeline.transport.burst(partUpdated(textPart("prt_transport_error", "after error")))
 
   await timeline.waitForPart("prt_transport_error")
   await expect.poll(async () => (await timeline.transport.connections()).length).toBe(2)
@@ -89,9 +89,13 @@ test("reconnects after a stream error", async ({ page }) => {
 
 test("does not request replay when reconnecting the volatile V2 event stream", async ({ page }) => {
   const timeline = await setupTimeline(page, { eventRetry: 10 })
-  const first = await timeline.transport.send(partUpdated(textPart("prt_transport_id", "event with id")), {
-    id: "timeline-event-7",
-  })
+  const events = partUpdated(textPart("prt_transport_id", "event with id"))
+  const first = (
+    await timeline.transport.burst(
+      events,
+      events.map((_, index) => (index === events.length - 1 ? { id: "timeline-event-7" } : {})),
+    )
+  ).at(-1)!
   await timeline.waitForPart("prt_transport_id")
 
   await timeline.transport.error("retry with event id")

packages/app/e2e/regression/session-todo-dock-navigation.spec.ts

@@ -1,169 +0,0 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
-import { expect, test, type Page } from "@playwright/test"
-import { mockOpenCodeServer } from "../utils/mock-server"
-import { expectSessionTitle } from "../utils/waits"
-
-const directory = "C:/OpenCode/TodoDockNavigation"
-const projectID = "proj_todo_dock_navigation"
-const sourceID = "ses_todo_dock_source"
-const otherID = "ses_todo_dock_other"
-const sourceTitle = "Todo dock animation"
-const otherTitle = "Separate session"
-
-const activeTodos = [
-  { id: "todo-1", content: "Receive todos in the active session", status: "completed", priority: "high" },
-  { id: "todo-2", content: "Keep the dock visible across tabs", status: "completed", priority: "high" },
-  { id: "todo-3", content: "Close after the final todo", status: "in_progress", priority: "high" },
-]
-
-type EventPayload = {
-  directory: string
-  payload: Record<string, unknown>
-}
-
-test.use({ viewport: { width: 1440, height: 900 } })
-
-test("animates todo opening without replaying it across session tabs", async ({ page }) => {
-  test.setTimeout(90_000)
-  const events: EventPayload[] = []
-  const todos: Record<string, typeof activeTodos> = { [sourceID]: [], [otherID]: [] }
-  const sessionStatus: Record<string, { type: "busy" | "idle" }> = {}
-
-  await mockOpenCodeServer(page, {
-    directory,
-    project: {
-      id: projectID,
-      worktree: directory,
-      vcs: "git",
-      name: "todo-dock-navigation",
-      time: { created: 1700000000000, updated: 1700000000000 },
-      sandboxes: [],
-    },
-    provider: {
-      all: [
-        {
-          id: "opencode",
-          name: "OpenCode",
-          models: {
-            "claude-opus-4-6": {
-              id: "claude-opus-4-6",
-              name: "Claude Opus 4.6",
-              limit: { context: 200_000 },
-            },
-          },
-        },
-      ],
-      connected: ["opencode"],
-      default: { providerID: "opencode", modelID: "claude-opus-4-6" },
-    },
-    sessions: [session(sourceID, sourceTitle, 1700000000000), session(otherID, otherTitle, 1700000001000)],
-    pageMessages: () => ({ items: [] }),
-    events: () => events.splice(0, 1),
-    eventRetry: 16,
-    sessionStatus: () => sessionStatus,
-    todos: (sessionID) => todos[sessionID] ?? [],
-  })
-  await configurePage(page)
-
-  await page.goto(sessionHref(sourceID))
-  await expectSessionTitle(page, sourceTitle)
-  const dock = page.locator('[data-component="session-todo-dock"]')
-  await expect(dock).toHaveCount(0)
-
-  sessionStatus[sourceID] = { type: "busy" }
-  events.push(statusEvent(sourceID, "busy"))
-  await expect(page.getByRole("button", { name: "Stop" })).toBeVisible()
-
-  await page.waitForTimeout(700)
-  const opening = sampleDock(page, 1_000)
-  todos[sourceID] = activeTodos
-  events.push(todoEvent(sourceID, activeTodos))
-  await expect(dock).toBeVisible()
-  await expect(dock.locator('[data-state="in_progress"]')).toHaveCount(1)
-  expect((await opening).some((sample) => sample.opacity > 0.05 && sample.opacity < 0.95)).toBe(true)
-
-  await switchSession(page, otherID, otherTitle)
-  await expect(dock).toHaveCount(0)
-
-  await switchSession(page, sourceID, sourceTitle)
-  await expect(dock).toHaveCount(0)
-})
-
-function session(id: string, title: string, created: number) {
-  return {
-    id,
-    slug: id,
-    projectID,
-    directory,
-    title,
-    version: "dev",
-    time: { created, updated: created },
-  }
-}
-
-function statusEvent(sessionID: string, type: "busy" | "idle"): EventPayload {
-  return {
-    directory,
-    payload: { type: "session.status", properties: { sessionID, status: { type } } },
-  }
-}
-
-function todoEvent(sessionID: string, next: typeof activeTodos): EventPayload {
-  return {
-    directory,
-    payload: { type: "todo.updated", properties: { sessionID, todos: next } },
-  }
-}
-
-async function configurePage(page: Page) {
-  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
-  await page.addInitScript(
-    ({ directory, dirBase64, server, sessionIDs }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
-      localStorage.setItem(
-        "opencode.global.dat:server",
-        JSON.stringify({
-          projects: { local: [{ worktree: directory, expanded: true }] },
-          lastProject: { local: directory },
-        }),
-      )
-      localStorage.setItem(
-        "opencode.window.browser.dat:tabs",
-        JSON.stringify(sessionIDs.map((sessionId) => ({ type: "session", server, dirBase64, sessionId }))),
-      )
-    },
-    { directory, dirBase64: base64Encode(directory), server, sessionIDs: [sourceID, otherID] },
-  )
-}
-
-function sessionHref(sessionID: string) {
-  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
-  return `/server/${base64Encode(server)}/session/${sessionID}`
-}
-
-async function switchSession(page: Page, sessionID: string, title: string) {
-  const href = sessionHref(sessionID)
-  const tab = page.locator(`[data-slot="titlebar-tabs"] a[href="${href}"]`).first()
-  await expect(tab).toBeVisible()
-  await tab.click()
-  await expectSessionTitle(page, title)
-}
-
-function sampleDock(page: Page, duration: number) {
-  return page.evaluate(async (duration) => {
-    const samples: { present: boolean; height: number; opacity: number }[] = []
-    const start = performance.now()
-    while (performance.now() - start < duration) {
-      const dock = document.querySelector<HTMLElement>('[data-component="session-todo-dock"]')
-      const clip = dock?.parentElement?.parentElement
-      const label = dock?.querySelector<HTMLElement>('[data-action="session-todo-toggle"] span[aria-label]')
-      samples.push({
-        present: !!dock,
-        height: clip?.getBoundingClientRect().height ?? 0,
-        opacity: label ? Number.parseFloat(getComputedStyle(label).opacity) : 0,
-      })
-      await new Promise(requestAnimationFrame)
-    }
-    return samples
-  }, duration)
-}

packages/app/e2e/regression/subagent-child-navigation.spec.ts

@@ -1,4 +1,5 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
+import type { OpenCodeEvent, SessionMessageInfo } from "@opencode-ai/client/promise"
 import { expect, test, type Page } from "@playwright/test"
 import { currentSession, mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"
@@ -12,8 +13,6 @@ const childTitle = "Subagent child session"
 // Child session pages derive their heading from the task part that spawned them.
 const taskDescription = "Inspect child navigation"
 
-type EventPayload = { directory: string; payload: Record<string, unknown> }
-
 test.use({ viewport: { width: 1440, height: 900 } })
 
 test("navigates to a subagent child session missing from the session list", async ({ page }) => {
@@ -27,7 +26,7 @@ test("navigates to a subagent child session missing from the session list", asyn
   await expect(titlebarRight.getByRole("button", { name: "Toggle review" })).toHaveCount(1)
 })
 
-test("keeps the parent visible while child lineage resolves", async ({ page }) => {
+test("keeps the parent visible while the child session resolves", async ({ page }) => {
   await setup(page)
   const requested = Promise.withResolvers<void>()
   const release = Promise.withResolvers<void>()
@@ -52,14 +51,18 @@ test("keeps the parent visible while child lineage resolves", async ({ page }) =
 })
 
 test("shows the not found fallback when the viewed session is deleted", async ({ page }) => {
-  const events: EventPayload[] = []
+  const events: OpenCodeEvent[] = []
   await setup(page, () => events.splice(0, 1))
   await openChildFromParent(page)
   await expectSessionTitle(page, taskDescription)
 
   events.push({
-    directory,
-    payload: { type: "session.deleted", properties: { info: childSession() } },
+    id: "evt_session_deleted",
+    created: 1700000003000,
+    type: "session.deleted",
+    durable: { aggregateID: childID, seq: 1, version: 2 },
+    location: { directory },
+    data: { sessionID: childID },
   })
 
   await expect(page.getByText("This session cannot be found")).toBeVisible()
@@ -67,7 +70,7 @@ test("shows the not found fallback when the viewed session is deleted", async ({
   await expect(page.getByRole("heading", { name: taskDescription })).toHaveCount(0)
 })
 
-async function setup(page: Page, events?: () => EventPayload[]) {
+async function setup(page: Page, events?: () => OpenCodeEvent[]) {
   await mockOpenCodeServer(page, {
     directory,
     project: {
@@ -142,60 +145,36 @@ function childSession() {
   return session(childID, childTitle, 1700000001000, { parentID })
 }
 
-function parentMessages() {
+function parentMessages(): SessionMessageInfo[] {
   const userID = "msg_user_0001"
   const assistantID = "msg_assistant_0001"
   return [
     {
-      info: {
-        id: userID,
-        sessionID: parentID,
-        role: "user",
-        time: { created: 1700000000000 },
-        agent: "build",
-        model: { providerID: "opencode", modelID: "claude-opus-4-6" },
-      },
-      parts: [
-        {
-          id: "prt_user_text_0001",
-          sessionID: parentID,
-          messageID: userID,
-          type: "text",
-          text: "Delegate work to a subagent",
-        },
-      ],
+      id: userID,
+      type: "user",
+      time: { created: 1700000000000 },
+      text: "Delegate work to a subagent",
     },
     {
-      info: {
-        id: assistantID,
-        sessionID: parentID,
-        role: "assistant",
-        time: { created: 1700000001000, completed: 1700000002000 },
-        parentID: userID,
-        modelID: "claude-opus-4-6",
-        providerID: "opencode",
-        mode: "build",
-        agent: "build",
-        path: { cwd: directory, root: directory },
-        cost: 0.01,
-        tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-        finish: "stop",
-      },
-      parts: [
+      id: assistantID,
+      type: "assistant",
+      time: { created: 1700000001000, completed: 1700000002000 },
+      model: { id: "claude-opus-4-6", providerID: "opencode" },
+      agent: "build",
+      cost: 0.01,
+      tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+      finish: "stop",
+      content: [
         {
-          id: "prt_tool_task_0001",
-          sessionID: parentID,
-          messageID: assistantID,
           type: "tool",
-          callID: "call_task_0001",
-          tool: "task",
+          id: "call_task_0001",
+          name: "task",
+          time: { created: 1700000001000, ran: 1700000001000, completed: 1700000002000 },
           state: {
             status: "completed",
             input: { description: taskDescription, subagent_type: "explore" },
-            output: "Subagent finished",
-            title: taskDescription,
+            content: [{ type: "text", text: "Subagent finished" }],
             metadata: { sessionId: childID },
-            time: { start: 1700000001000, end: 1700000002000 },
           },
         },
       ],
@@ -207,7 +186,6 @@ async function configurePage(page: Page) {
   const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
   await page.addInitScript(
     ({ directory, server, sessionId }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.global.dat:server",
         JSON.stringify({

packages/app/e2e/regression/tab-navigate-mousedown.spec.ts

@@ -1,5 +1,5 @@
 import { expect, test, type Page, type Route } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { currentSession } from "../utils/mock-server"
 
 const server = "http://127.0.0.1:4096"
@@ -12,7 +12,6 @@ test("pressing mouse down on a tab navigates before mouse up", async ({ page })
   await mockServer(page)
   await page.addInitScript(
     ({ server, sessionA, sessionB }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.window.browser.dat:tabs",
         JSON.stringify([
@@ -46,7 +45,6 @@ test("keyboard navigation follows the visible tab order", async ({ page }) => {
   await mockServer(page)
   await page.addInitScript(
     ({ server, sessionA, unresolved, sessionC }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.window.browser.dat:tabs",
         JSON.stringify([
@@ -87,8 +85,7 @@ async function mockServer(page: Page) {
   await page.route("**/*", async (route) => {
     const url = new URL(route.request().url())
     if (url.origin !== server) return route.fallback()
-    if ([`/api/session/${unresolvedSessionID}`, `/session/${unresolvedSessionID}`].includes(url.pathname))
-      return new Promise(() => {})
+    if (url.pathname === `/api/session/${unresolvedSessionID}`) return new Promise(() => {})
     if (url.pathname === "/api/event") return sse(route)
     if (url.pathname === "/api/session")
       return json(route, { data: sessions.map((session) => currentSession(session)), cursor: {} })
@@ -97,41 +94,29 @@ async function mockServer(page: Page) {
     if (currentSessionInfo) return json(route, { data: currentSession(currentSessionInfo) })
     if (sessions.some((item) => url.pathname === `/api/session/${item.id}/message`))
       return json(route, { data: [], cursor: {} })
-    if (/^\/session\/[^/]+$/.test(url.pathname)) return json(route, { name: "NotFoundError" }, 404)
-    if (/^\/session\/[^/]+\/message$/.test(url.pathname)) return json(route, [])
-    if (/^\/session\/[^/]+\/(children|todo|diff)$/.test(url.pathname)) return json(route, [])
-    if (["/skill", "/command", "/lsp", "/formatter", "/permission", "/question", "/vcs/diff"].includes(url.pathname))
-      return json(route, [])
-    if (url.pathname === "/provider")
-      return json(route, { all: [], connected: [], default: { providerID: "", modelID: "" } })
-    if (url.pathname === "/agent") return json(route, [{ name: "build", mode: "primary" }])
-    if (url.pathname === "/project" || url.pathname === "/project/current") {
+    if (["/api/agent", "/api/provider", "/api/model", "/api/command", "/api/reference"].includes(url.pathname))
+      return json(route, { location: { directory: sessionA.directory }, data: [] })
+    if (url.pathname === "/api/model/default")
+      return json(route, { location: { directory: sessionA.directory }, data: null })
+    if (url.pathname === "/api/permission/request" || url.pathname === "/api/question/request")
+      return json(route, { location: { directory: sessionA.directory }, data: [] })
+    if (url.pathname === "/api/mcp") return json(route, { location: { directory: sessionA.directory }, data: [] })
+    if (url.pathname === "/api/mcp/resource")
+      return json(route, { location: { directory: sessionA.directory }, data: { resources: [], templates: [] } })
+    if (url.pathname === "/api/project" || url.pathname === "/api/project/current") {
       const project = {
         id: sessionA.projectID,
-        worktree: sessionA.directory,
+        canonical: sessionA.directory,
         vcs: "git",
         time: { created: 1, updated: 1 },
         sandboxes: [],
       }
-      return json(route, url.pathname === "/project" ? [project] : project)
+      return json(
+        route,
+        url.pathname === "/api/project" ? [project] : { id: project.id, directory: sessionA.directory },
+      )
     }
-    if (url.pathname === "/path")
-      return json(route, {
-        state: sessionA.directory,
-        config: sessionA.directory,
-        worktree: sessionA.directory,
-        directory: sessionA.directory,
-        home: sessionA.directory,
-      })
-    if (url.pathname === "/api/path")
-      return json(route, {
-        state: sessionA.directory,
-        config: sessionA.directory,
-        worktree: sessionA.directory,
-        directory: sessionA.directory,
-        home: sessionA.directory,
-      })
-    if (url.pathname === "/vcs") return json(route, { branch: "main", default_branch: "main" })
+    if (url.pathname === "/api/location") return json(route, { directory: sessionA.directory })
     if (url.pathname === "/api/vcs")
       return json(route, {
         location: { directory: sessionA.directory },

packages/app/e2e/regression/terminal-composer-focus.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode, checksum } from "@opencode-ai/util/encode"
 import { expect, test, type Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"
@@ -8,12 +8,12 @@ const projectID = "proj_terminal_composer_focus"
 const sessionID = "ses_terminal_composer_focus"
 const ptyID = "pty_terminal_composer_focus"
 const newPtyID = "pty_terminal_composer_focus_new"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 
 test.use({ viewport: { width: 1440, height: 900 } })
 
 test.beforeEach(async ({ page }) => {
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: {
       id: projectID,
@@ -71,13 +71,10 @@ test.beforeEach(async ({ page }) => {
     }),
   )
   await page.routeWebSocket(new RegExp(`/api/pty/${ptyID}/connect`), () => undefined)
-  await page.addInitScript(() => {
-    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
-  })
 })
 
 test("routes typing to the composer unless the open terminal is focused", async ({ page }) => {
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, "Terminal composer focus")
 
   const composer = page.locator('[data-component="prompt-input"]')
@@ -116,7 +113,7 @@ test("keeps composer focus when a cached terminal finishes mounting", async ({ p
   })
   await seedCachedTerminal(page)
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`, { waitUntil: "commit" })
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`, { waitUntil: "commit" })
   await expectSessionTitle(page, "Terminal composer focus")
 
   const composer = page.locator('[data-component="prompt-input"]')
@@ -142,7 +139,7 @@ test("keeps newer composer focus while an explicit terminal open finishes", asyn
     await route.continue()
   })
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, "Terminal composer focus")
 
   const composer = page.locator('[data-component="prompt-input"]')
@@ -187,7 +184,7 @@ test("focuses a terminal created from the new-terminal button", async ({ page })
   )
   await page.routeWebSocket(new RegExp(`/api/pty/${newPtyID}/connect`), () => undefined)
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, "Terminal composer focus")
 
   const composer = page.locator('[data-component="prompt-input"]')
@@ -214,12 +211,18 @@ function seedCachedTerminal(page: Page) {
         }),
       )
     },
-    { terminalKey: `${base64Encode(directory)}/terminal.v1`, ptyID },
+    { terminalKey: terminalStorageKey(), ptyID },
   )
 }
 
+function terminalStorageKey() {
+  const dir = base64Encode(directory)
+  const head = dir.slice(0, 12).replace(/[^a-zA-Z0-9._-]/g, "-")
+  return `opencode.workspace.${head}.${checksum(dir) ?? "0"}.dat:workspace:terminal`
+}
+
 function ptyLocation() {
-  return { directory, project: { id: projectID, directory } }
+  return { directory, project: { id: projectID, directory, canonical: directory } }
 }
 
 function ptyInfo(id: string, title: string) {

packages/app/e2e/regression/terminal-hidden.spec.ts

@@ -6,6 +6,7 @@ const directory = "C:/OpenCode/HiddenTerminalRegression"
 const projectID = "proj_hidden_terminal_regression"
 const sessionID = "ses_hidden_terminal_regression"
 const title = "Hidden terminal regression"
+const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 
 test("unmounts the terminal panel while it is hidden", async ({ page }) => {
   await page.setViewportSize({ width: 1400, height: 900 })
@@ -91,7 +92,7 @@ test("unmounts the terminal panel while it is hidden", async ({ page }) => {
   )
   await page.routeWebSocket("**/api/pty/pty_hidden_terminal/connect", () => undefined)
 
-  await page.goto(`/${base64Encode(directory)}/session/${sessionID}`)
+  await page.goto(`/server/${base64Encode(server)}/session/${sessionID}`)
   await expectSessionTitle(page, title)
 
   await page.keyboard.press("Control+Backquote")

packages/app/e2e/regression/terminal-tab-switch.spec.ts

@@ -1,4 +1,4 @@
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { expect, test, type Page } from "@playwright/test"
 import { mockOpenCodeServer } from "../utils/mock-server"
 import { expectSessionTitle } from "../utils/waits"
@@ -121,7 +121,6 @@ async function setup(page: Page) {
 
   await page.addInitScript(
     ({ directory, server, sessions }) => {
-      localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
       localStorage.setItem(
         "opencode.global.dat:server",
         JSON.stringify({

packages/app/e2e/smoke/session-timeline.fixture.ts

@@ -21,16 +21,29 @@ const words = [
   "vector",
 ]
 
-const serverKey = `http://127.0.0.1:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
+const serverKey = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
 const sourceID = "ses_smoke_source"
 const targetID = "ses_smoke_target"
 const directory = "C:/OpenCode/SmokeProject"
 const projectID = "proj_smoke_timeline"
 const model = { providerID: "opencode", modelID: "claude-opus-4-6", variant: "max" }
 
-type MessageInfo = Record<string, unknown> & { id: string; role: "user" | "assistant" }
-type MessagePart = Record<string, unknown> & { id: string; type: string; text?: string; tool?: string }
-type Message = { info: MessageInfo; parts: MessagePart[] }
+type MessagePart = {
+  id: string
+  type: "text" | "reasoning" | "tool"
+  text?: string
+  time?: { start: number; end?: number }
+  callID?: string
+  tool?: string
+  state?: {
+    status: "completed"
+    input: Record<string, unknown>
+    output: string
+    title: unknown
+    metadata: Record<string, unknown>
+    time: { start: number; end: number }
+  }
+}
 
 function lorem(seed: number, length: number) {
   let out = ""
@@ -48,54 +61,59 @@ function id(prefix: string, value: number) {
   return `${prefix}_smoke_${String(value).padStart(4, "0")}`
 }
 
-function userMessage(sessionID: string, index: number, textLength: number, diffs: unknown[] = []): Message {
+function userMessage(_sessionID: string, index: number, textLength: number, diffs: unknown[] = []): SessionMessageInfo {
   const messageID = id("msg_user", index)
   return {
-    info: {
-      id: messageID,
-      sessionID,
-      role: "user",
-      time: { created: 1700000000000 + index * 10_000 },
-      summary: { diffs },
-      agent: "build",
-      model,
-    },
-    parts: [
-      {
-        id: id("prt_user_text", index),
-        sessionID,
-        messageID,
-        type: "text",
-        text: lorem(index, textLength),
-      },
-    ],
+    id: messageID,
+    type: "user",
+    time: { created: 1700000000000 + index * 10_000 },
+    text: lorem(index, textLength),
+    metadata: diffs.length ? { diffs: diffs as JsonValue } : undefined,
   }
 }
 
-function assistantMessage(sessionID: string, index: number, parentID: string, parts: MessagePart[]): Message {
+function assistantMessage(
+  _sessionID: string,
+  index: number,
+  _parentID: string,
+  parts: MessagePart[],
+): SessionMessageInfo {
   const messageID = id("msg_assistant", index)
   return {
-    info: {
-      id: messageID,
-      sessionID,
-      role: "assistant",
-      time: { created: 1700000000000 + index * 10_000 + 1_000, completed: 1700000000000 + index * 10_000 + 8_000 },
-      parentID,
-      modelID: model.modelID,
-      providerID: model.providerID,
-      mode: "build",
-      agent: "build",
-      path: { cwd: directory, root: directory },
-      cost: 0.01,
-      tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
-      variant: "max",
-      finish: "stop",
+    id: messageID,
+    type: "assistant",
+    time: { created: 1700000000000 + index * 10_000 + 1_000, completed: 1700000000000 + index * 10_000 + 8_000 },
+    model: { id: model.modelID, providerID: model.providerID, variant: model.variant },
+    agent: "build",
+    cost: 0.01,
+    tokens: { input: 100, output: 200, reasoning: 0, cache: { read: 0, write: 0 } },
+    finish: "stop",
+    content: parts.map(messageContent),
+  }
+}
+
+function messageContent(part: MessagePart): SessionMessageAssistant["content"][number] {
+  if (part.type === "text") return { type: "text", text: part.text ?? "" }
+  if (part.type === "reasoning")
+    return {
+      type: "reasoning",
+      text: part.text ?? "",
+      time: part.time
+        ? { created: part.time.start, ...(part.time.end === undefined ? {} : { completed: part.time.end }) }
+        : undefined,
+    }
+  const state = part.state!
+  return {
+    type: "tool",
+    id: part.callID ?? part.id,
+    name: part.tool!,
+    time: { created: state.time.start, ran: state.time.start, completed: state.time.end },
+    state: {
+      status: "completed",
+      input: state.input as Record<string, JsonValue>,
+      content: [{ type: "text", text: state.output }],
+      metadata: state.metadata as Record<string, JsonValue>,
     },
-    parts: parts.map((part) => ({
-      ...part,
-      sessionID,
-      messageID,
-    })),
   }
 }
 
@@ -180,7 +198,7 @@ function code(seed: number, lines: number) {
   )
 }
 
-function turn(index: number): Message[] {
+function turn(index: number): SessionMessageInfo[] {
   const diff = index % 9 === 0 ? [fileDiff(`src/generated/summary-${index}.ts`, index)] : []
   const user = userMessage(targetID, index, 100 + (index % 4) * 80, diff)
   const parts = [
@@ -219,7 +237,7 @@ function turn(index: number): Message[] {
       ? [toolPart(index, 12, "task", { description: "Inspect generated fixture", subagent_type: "explore" }, 160)]
       : []),
   ]
-  return [user, assistantMessage(targetID, index, user.info.id, parts)]
+  return [user, assistantMessage(targetID, index, user.id, parts)]
 }
 
 const targetMessages = Array.from({ length: 101 }, (_, index) => turn(index)).flat()
@@ -227,22 +245,16 @@ const sourceMessages = Array.from({ length: 12 }, (_, index) => [
   userMessage(sourceID, index + 1000, 120),
   assistantMessage(sourceID, index + 1000, id("msg_user", index + 1000), [textPart(index + 1000, 0, 240)]),
 ]).flat()
-const messages: Record<string, Message[]> = { [sourceID]: sourceMessages, [targetID]: targetMessages }
+const messages: Record<string, SessionMessageInfo[]> = { [sourceID]: sourceMessages, [targetID]: targetMessages }
 
-function renderable(part: MessagePart) {
-  if (part.type === "tool" && part.tool === "todowrite") return false
-  if (part.type === "text") return !!part.text?.trim()
-  if (part.type === "reasoning") return !!part.text?.trim()
-  return part.type !== "step-start" && part.type !== "step-finish" && part.type !== "patch"
-}
-
-function currentPartIDs(message: Message) {
+function currentPartIDs(message: SessionMessageInfo) {
+  if (message.type === "user") return message.text.trim() ? [`${message.id}:text:0`] : []
+  if (message.type !== "assistant") return []
   const ordinals = { text: 0, reasoning: 0 }
-  return message.parts.flatMap((part) => {
-    if (!renderable(part)) return []
-    if (part.type === "text") return [`${message.info.id}:text:${ordinals.text++}`]
-    if (part.type === "reasoning") return [`${message.info.id}:reasoning:${ordinals.reasoning++}`]
-    if (part.type === "tool") return [typeof part.callID === "string" ? part.callID : part.id]
+  return message.content.flatMap((part) => {
+    if (part.type === "text") return part.text.trim() ? [`${message.id}:text:${ordinals.text++}`] : []
+    if (part.type === "reasoning") return part.text.trim() ? [`${message.id}:reasoning:${ordinals.reasoning++}`] : []
+    if (part.type === "tool") return [part.id]
     return []
   })
 }
@@ -295,12 +307,11 @@ export const fixture = {
   expected: {
     sourceTitle: "Uncommitted changes inquiry",
     targetTitle: "Example Game: sample jump movement & sample physics analysis",
-    targetMessageIDs: targetMessages
-      .filter((message) => message.info.role === "user")
-      .map((message) => message.info.id),
+    targetMessageIDs: targetMessages.filter((message) => message.type === "user").map((message) => message.id),
     targetPartIDs: targetMessages.flatMap(currentPartIDs),
-    expandedShellPartID: targetMessages.flatMap((message) => message.parts).find((part) => part.tool === "bash")!
-      .callID,
+    expandedShellPartID: targetMessages
+      .flatMap((message) => (message.type === "assistant" ? message.content : []))
+      .flatMap((part) => (part.type === "tool" && part.name === "bash" ? [part.id] : []))[0],
   },
 }
 
@@ -309,12 +320,13 @@ export function pageMessages(sessionID: string, limit: number, before?: string)
   const end = before
     ? Math.max(
         0,
-        messages.findIndex((message) => message.info.id === before),
+        messages.findIndex((message) => message.id === before),
       )
     : messages.length
   const start = Math.max(0, end - limit)
   return {
     items: messages.slice(start, end),
-    cursor: start > 0 ? messages[start].info.id : undefined,
+    cursor: start > 0 ? messages[start].id : undefined,
   }
 }
+import type { JsonValue, SessionMessageAssistant, SessionMessageInfo } from "@opencode-ai/client/promise"

packages/app/e2e/smoke/session-timeline.spec.ts

@@ -1,5 +1,5 @@
 import { expect, test, type Page } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 import { fixture, pageMessages } from "./session-timeline.fixture"
 import { trackPageErrors, expectNoSmokeErrors } from "../utils/errors"
 import { mockOpenCodeServer } from "../utils/mock-server"
@@ -33,7 +33,6 @@ test.describe("smoke: session timeline", () => {
   test("keeps the visible message fixed while prepending history", async ({ page }) => {
     const requests: { before?: string; phase: "start" | "end"; at: number }[] = []
     await mockOpenCodeServer(page, {
-      protocol: "v2",
       sessions: fixture.sessions,
       provider: fixture.provider,
       directory: fixture.directory,
@@ -44,7 +43,7 @@ test.describe("smoke: session timeline", () => {
     })
     await configureSmokePage(page, fixture.directory)
 
-    await navigateToSession(page, fixture.directory, fixture.targetID, fixture.expected.targetTitle)
+    await navigateToSession(page, fixture.targetID, fixture.expected.targetTitle)
     await waitForTimelineStable(page)
     const scroller = timelineScroller(page)
     await pointAtTimeline(page)
@@ -92,7 +91,6 @@ test.describe("smoke: session timeline", () => {
 
   test("preserves the timeline gap above the composer", async ({ page }) => {
     await mockOpenCodeServer(page, {
-      protocol: "v2",
       sessions: fixture.sessions,
       provider: fixture.provider,
       directory: fixture.directory,
@@ -101,7 +99,7 @@ test.describe("smoke: session timeline", () => {
     })
     await configureSmokePage(page, fixture.directory)
 
-    await navigateToSession(page, fixture.directory, fixture.targetID, fixture.expected.targetTitle)
+    await navigateToSession(page, fixture.targetID, fixture.expected.targetTitle)
     await waitForTimelineStable(page)
     const scroller = timelineScroller(page)
     await scroller.evaluate((element) => {
@@ -119,7 +117,6 @@ test.describe("smoke: session timeline", () => {
 
   test("paints cached session tabs at the latest message", async ({ page }) => {
     await mockOpenCodeServer(page, {
-      protocol: "v2",
       sessions: fixture.sessions,
       provider: fixture.provider,
       directory: fixture.directory,
@@ -143,11 +140,11 @@ test.describe("smoke: session timeline", () => {
       { server: fixture.serverKey, sourceID: fixture.sourceID, targetID: fixture.targetID },
     )
 
-    await page.goto(`/${base64Encode(fixture.directory)}/session/${fixture.targetID}`)
+    await page.goto(`/server/${base64Encode(fixture.serverKey)}/session/${fixture.targetID}`)
     await expectSessionTitle(page, fixture.expected.targetTitle)
     await switchTitlebarSession(page, fixture.sourceID, fixture.expected.sourceTitle)
 
-    const destination = fixture.messages[fixture.targetID].map((message) => message.info.id)
+    const destination = fixture.messages[fixture.targetID].map((message) => message.id)
     const last = fixture.expected.targetMessageIDs.at(-1)!
     await page.evaluate(
       ({ destination, last }) => {
@@ -262,7 +259,6 @@ test.describe("smoke: session timeline", () => {
 
   test("paints a cold session tab at the latest message", async ({ page }) => {
     await mockOpenCodeServer(page, {
-      protocol: "v2",
       sessions: fixture.sessions,
       provider: fixture.provider,
       directory: fixture.directory,
@@ -285,10 +281,10 @@ test.describe("smoke: session timeline", () => {
       },
       { server: fixture.serverKey, sourceID: fixture.sourceID, targetID: fixture.targetID },
     )
-    await page.goto(`/${base64Encode(fixture.directory)}/session/${fixture.sourceID}`)
+    await page.goto(`/server/${base64Encode(fixture.serverKey)}/session/${fixture.sourceID}`)
     await expectSessionTitle(page, fixture.expected.sourceTitle)
     const last = fixture.expected.targetMessageIDs.at(-1)!
-    const destination = fixture.messages[fixture.targetID].map((message) => message.info.id)
+    const destination = fixture.messages[fixture.targetID].map((message) => message.id)
     await page.evaluate(
       ({ destination, last }) => {
         const ids = new Set(destination)
@@ -341,7 +337,6 @@ test.describe("smoke: session timeline", () => {
   test("renders seeded timeline in order while paging through history", async ({ page }) => {
     const errors = trackPageErrors(page)
     await mockOpenCodeServer(page, {
-      protocol: "v2",
       sessions: fixture.sessions,
       provider: fixture.provider,
       directory: fixture.directory,
@@ -351,9 +346,9 @@ test.describe("smoke: session timeline", () => {
     await configureSmokePage(page, fixture.directory)
 
     await selectHomeProject(page, fixture.project.name)
-    await navigateToSession(page, fixture.directory, fixture.sourceID, fixture.expected.sourceTitle)
+    await navigateToSession(page, fixture.sourceID, fixture.expected.sourceTitle)
     await expectSessionReady(page)
-    await navigateToSession(page, fixture.directory, fixture.targetID, fixture.expected.targetTitle)
+    await navigateToSession(page, fixture.targetID, fixture.expected.targetTitle)
     const expectedPartIDs = fixture.expected.targetPartIDs
     const expectedMessageIDs = fixture.expected.targetMessageIDs
     await expectSessionTimelineReady(page, expectedPartIDs, expectedMessageIDs, errors)
@@ -742,8 +737,8 @@ async function selectHomeProject(page: Page, projectName: string) {
   await expect(page).toHaveURL(/\/$/)
 }
 
-async function navigateToSession(page: Page, directory: string, sessionId: string, expectedTitle: string) {
-  await page.goto(`/${base64Encode(directory)}/session/${sessionId}`)
+async function navigateToSession(page: Page, sessionId: string, expectedTitle: string) {
+  await page.goto(`/server/${base64Encode(fixture.serverKey)}/session/${sessionId}`)
   await expectSessionTitle(page, expectedTitle)
 }
 

packages/app/e2e/user-story/model-selection-flow.spec.ts

@@ -6,7 +6,6 @@ const directory = "C:/OpenCode/NewProject"
 
 test("creates a session in a new project and selects its model", async ({ page }) => {
   await mockOpenCodeServer(page, {
-    protocol: "v2",
     directory,
     project: {
       id: "proj_model_selection_flow",
@@ -53,7 +52,6 @@ test("creates a session in a new project and selects its model", async ({ page }
     findFiles: () => ["NewProject"],
   })
   await page.addInitScript(() => {
-    localStorage.setItem("settings.v3", JSON.stringify({ general: { newLayoutDesigns: true } }))
     localStorage.setItem("opencode.global.dat:server", JSON.stringify({ projects: { local: [] } }))
     localStorage.setItem(
       "opencode.global.dat:model",

packages/app/e2e/utils/errors.ts

@@ -6,6 +6,9 @@ export function trackPageErrors(page: Page) {
     if (message.type() === "error") errors.push(message.text())
   })
   page.on("pageerror", (error) => errors.push(error.stack ?? error.message))
+  page.on("response", (response) => {
+    if (response.status() >= 400) errors.push(`${response.status()} ${response.url()}`)
+  })
   return errors
 }
 

packages/app/e2e/utils/mock-server.ts

@@ -1,37 +1,30 @@
 import type { Page, Route } from "@playwright/test"
-import type {
-  JsonValue,
-  PromptAgentAttachment,
-  PromptFileAttachment,
-  SessionMessageAssistant,
-  SessionMessageInfo,
-  SessionStructuredError,
-} from "@opencode-ai/client/promise"
-
-const emptyList = new Set(["/skill", "/command", "/lsp", "/formatter", "/vcs/status", "/vcs/diff"])
-const emptyObject = new Set(["/global/config", "/config", "/provider/auth", "/mcp", "/experimental/resource"])
+import type { JsonValue, OpenCodeEvent, SessionMessageInfo } from "@opencode-ai/client/promise"
 
 export interface MockServerConfig {
-  protocol?: "v1" | "v2"
   provider: unknown | (() => unknown)
   integrationMethods?: Record<string, unknown[]>
   onConnectKey?: (input: { integrationID: string; body: unknown }) => void
-  onInstanceDispose?: () => void
   directory: string
   project: unknown
   sessions: ({ id: string } & Record<string, unknown>)[]
-  pageMessages: (sessionId: string, limit: number, before?: string) => { items: unknown[]; cursor?: string }
+  pageMessages: (
+    sessionId: string,
+    limit: number,
+    before?: string,
+  ) => {
+    items: SessionMessageInfo[]
+    cursor?: string
+  }
   vcsDiff?: unknown[]
   messageDelay?: number
   beforeMessagesResponse?: (input: { sessionID: string; before?: string }) => Promise<void>
   onMessages?: (input: { sessionID: string; before?: string; phase: "start" | "end" }) => void
-  message?: (sessionID: string, messageID: string) => unknown
+  message?: (sessionID: string, messageID: string) => SessionMessageInfo | undefined
   onMessage?: (input: { sessionID: string; messageID: string }) => void
-  events?: () => unknown[]
+  events?: () => OpenCodeEvent[]
   eventRetry?: number
-  todos?: (sessionID: string) => unknown[]
   permissions?: unknown[] | (() => unknown[])
-  questions?: unknown[] | (() => unknown[])
   forms?: unknown[] | (() => unknown[])
   fileList?: (path: string) => unknown | Promise<unknown>
   fileContent?: (path: string) => unknown | Promise<unknown>
@@ -46,10 +39,11 @@ type MockStreamWindow = Window & {
 
 export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
   const cursors = new Map<string, string>()
+  const server = `http://${process.env.PLAYWRIGHT_SERVER_HOST ?? "127.0.0.1"}:${process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"}`
   let nextCursor = 0
 
   await page.addInitScript(
-    ({ port, retry }) => {
+    ({ server, retry }) => {
       const host = window as MockStreamWindow
       if (host.__testSseTransport || host.__mockServerStream) return
       const originalFetch = window.fetch.bind(window)
@@ -74,7 +68,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       const fetch = (input: RequestInfo | URL, init?: RequestInit) => {
         const request = new Request(input, init)
         const url = new URL(request.url)
-        if (url.port !== port || url.pathname !== "/api/event") return originalFetch(request)
+        if (url.origin !== server || url.pathname !== "/api/event") return originalFetch(request)
         state.connections += 1
         const id = state.connections
         let ended = false
@@ -114,7 +108,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       }
       Object.defineProperty(window, "fetch", { configurable: true, writable: true, value: fetch })
     },
-    { port: process.env.PLAYWRIGHT_SERVER_PORT ?? "4096", retry: config.eventRetry },
+    { server, retry: config.eventRetry },
   )
 
   if (config.events) {
@@ -125,10 +119,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       if (batch.length === 0) return
       pump.busy = true
       void page
-        .evaluate(
-          (payloads) => (window as MockStreamWindow).__mockServerStream?.push(payloads),
-          batch.map(currentEvent),
-        )
+        .evaluate((payloads) => (window as MockStreamWindow).__mockServerStream?.push(payloads), batch as unknown[])
         .catch(() => {})
         .finally(() => {
           pump.busy = false
@@ -136,87 +127,33 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
     }, 50)
     page.on("close", () => clearInterval(timer))
   }
-  const staticRoutes: Record<string, unknown> = {
-    "/path": {
-      state: config.directory,
-      config: config.directory,
-      worktree: config.directory,
-      directory: config.directory,
-      home: "C:/OpenCode",
-    },
-    "/project": [config.project],
-    "/project/current": config.project,
-    "/agent": [{ name: "build", mode: "primary" }],
-    "/vcs": { branch: "main", default_branch: "main" },
-    "/session": config.sessions,
-  }
   await page.route("**/*", async (route) => {
     const url = new URL(route.request().url())
     const targetPort = process.env.PLAYWRIGHT_SERVER_PORT ?? "4096"
     const appPort = new URL(
       process.env.PLAYWRIGHT_BASE_URL ?? `http://127.0.0.1:${process.env.PLAYWRIGHT_PORT ?? "3000"}`,
     ).port
-    if (url.port !== targetPort && url.port !== appPort) return route.fallback()
+    if (url.origin !== server && url.port !== appPort) return route.fallback()
 
     const path = url.pathname
-    if (path === "/global/event" || path === "/event" || path === "/api/event") {
+    if (path === "/api/event") {
       const events = config.events?.()
       return sse(
         route,
-        path === "/api/event"
-          ? [{ id: "evt_mock_connected", type: "server.connected", data: {} }, ...(events?.map(currentEvent) ?? [])]
-          : [
-              ...(path === "/global/event"
-                ? [{ payload: { id: "evt_mock_connected", type: "server.connected", properties: {} } }]
-                : []),
-              ...(events ?? []),
-            ],
+        [{ id: "evt_mock_connected", type: "server.connected", data: {} }, ...(events ?? [])],
         config.eventRetry,
       )
     }
-    if (path === "/global/health")
-      return config.protocol === "v2" ? json(route, {}, undefined, 404) : json(route, { healthy: true })
     if (path === "/api/health") return json(route, { healthy: true, version: "2.0.0", pid: 1 })
-    if (path === "/experimental/capabilities") return json(route, { backgroundSubagents: true })
-    if (path === "/provider") return json(route, providerConfig(config))
-    if (path === "/provider/auth") return json(route, config.integrationMethods ?? {})
-    const legacyAuth = path.match(/^\/auth\/([^/]+)$/)?.[1]
-    if (legacyAuth && route.request().method() === "PUT") {
-      config.onConnectKey?.({ integrationID: legacyAuth, body: route.request().postDataJSON() })
-      return json(route, true)
-    }
-    if (path === "/instance/dispose" && route.request().method() === "POST") {
-      config.onInstanceDispose?.()
-      return json(route, true)
-    }
-    if (path === "/permission")
-      return json(route, typeof config.permissions === "function" ? config.permissions() : (config.permissions ?? []))
-    if (path === "/question")
-      return json(route, typeof config.questions === "function" ? config.questions() : (config.questions ?? []))
-    if (path === "/session/status")
-      return json(
-        route,
-        typeof config.sessionStatus === "function" ? config.sessionStatus() : (config.sessionStatus ?? {}),
-      )
-    if (path === "/vcs/diff" && config.vcsDiff) return json(route, config.vcsDiff)
-    if (path === "/file" && config.fileList)
-      return json(route, await config.fileList(url.searchParams.get("path") ?? ""))
-    if (path === "/file/content" && config.fileContent)
-      return json(route, await config.fileContent(url.searchParams.get("path") ?? ""))
-    if (path === "/find/file" && config.findFiles)
-      return json(
-        route,
-        await config.findFiles({
-          query: url.searchParams.get("query") ?? "",
-          dirs: url.searchParams.get("dirs") ?? undefined,
-          limit: url.searchParams.has("limit") ? Number(url.searchParams.get("limit")) : undefined,
-        }),
-      )
     if (path === "/api/reference")
       return json(route, {
         location: {
           directory: config.directory,
-          project: { id: (config.project as { id?: string }).id, directory: config.directory },
+          project: {
+            id: (config.project as { id?: string }).id,
+            directory: config.directory,
+            canonical: config.directory,
+          },
         },
         data: [],
       })
@@ -245,6 +182,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       return json(route, { location: location(config), data: currentDefaultModel(providerConfig(config)) })
     if (path === "/api/integration") return json(route, { location: location(config), data: [] })
     if (path === "/api/command") return json(route, { location: location(config), data: [] })
+    if (path === "/api/skill") return json(route, { location: location(config), data: [] })
     if (path === "/api/plugin") return json(route, { location: location(config), data: [] })
     if (path === "/api/mcp") return json(route, { location: location(config), data: [] })
     if (path === "/api/mcp/resource")
@@ -277,7 +215,11 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       ])
     }
     if (path === "/api/project/current")
-      return json(route, { id: (config.project as { id?: string }).id, directory: config.directory })
+      return json(route, {
+        id: (config.project as { id?: string }).id,
+        directory: config.directory,
+        canonical: config.directory,
+      })
     const worktree = path.match(/^\/api\/worktree\/([^/]+)$/)?.[1]
     if (worktree && route.request().method() === "GET")
       return json(route, [
@@ -303,18 +245,13 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
           currentPermission,
         ),
       })
-    if (path === "/api/question/request")
-      return json(route, {
-        location: location(config),
-        data: typeof config.questions === "function" ? config.questions() : (config.questions ?? []),
-      })
     if (path === "/api/form/request")
       return json(route, {
         location: location(config),
         data: typeof config.forms === "function" ? config.forms() : (config.forms ?? []),
       })
     if (path === "/api/vcs")
-      return json(route, { location: location(config), data: { branch: "main", defaultBranch: "main" } })
+      return json(route, { location: location(config), data: { branch: { current: "main", default: "main" } } })
     if (path === "/api/vcs/status") return json(route, { location: location(config), data: [] })
     if (path === "/api/vcs/diff") return json(route, { location: location(config), data: config.vcsDiff ?? [] })
     if (path === "/api/fs/list" && config.fileList)
@@ -352,10 +289,26 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
           : entries,
       })
     }
-    if (path === "/api/pty/shells") return json(route, { location: location(config), data: [] })
+    if (path === "/api/shell" && route.request().method() === "GET")
+      return json(route, { location: location(config), data: [] })
     if (/^\/api\/pty\/[^/]+\/connect-token$/.test(path))
       return json(route, { location: location(config), data: { ticket: "e2e-ticket", expires_in: 60 } })
     if (path === "/api/session") {
+      if (route.request().method() === "POST") {
+        const payload = route.request().postDataJSON() as Record<string, unknown>
+        const created = currentSession(
+          {
+            id: "ses_mock_created",
+            projectID: (config.project as { id?: string }).id,
+            title: typeof payload.title === "string" ? payload.title : "New session",
+            parentID: typeof payload.parentID === "string" ? payload.parentID : undefined,
+          },
+          config.directory,
+        )
+        config.sessions.push(created)
+        return json(route, { data: created })
+      }
+      if (route.request().method() !== "GET") return route.fallback()
       const directory = url.searchParams.get("directory")
       const parentID = url.searchParams.get("parentID")
       const limit = Number(url.searchParams.get("limit") ?? 50)
@@ -365,7 +318,11 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
           const location = session.location as { directory?: string } | undefined
           return !directory || location?.directory === directory || session.directory === directory
         })
-        .filter((session) => parentID !== "null" || session.parentID === undefined)
+        .filter((session) => {
+          if (parentID === null) return true
+          if (parentID === "null") return session.parentID === undefined
+          return session.parentID === parentID
+        })
         .filter((session) => {
           const search = url.searchParams.get("search")?.toLowerCase()
           return (
@@ -375,7 +332,7 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
               .includes(search)
           )
         })
-      const ordered = url.searchParams.get("order") === "asc" ? sessions.toReversed() : sessions
+      const ordered = url.searchParams.get("order") === "asc" ? sessions : sessions.toReversed()
       const data = ordered.slice(offset, offset + limit)
       const next = offset + limit < ordered.length ? String(offset + limit) : undefined
       return json(route, {
@@ -398,9 +355,6 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
     if (/^\/api\/session\/[^/]+\/shell$/.test(path) && route.request().method() === "POST") {
       return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
     }
-    if (/^\/api\/session\/[^/]+\/question\/[^/]+\/(reply|reject)$/.test(path) && route.request().method() === "POST") {
-      return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
-    }
     const sessionForm = path.match(/^\/api\/session\/([^/]+)\/form$/)?.[1]
     if (sessionForm && route.request().method() === "GET") {
       const forms = typeof config.forms === "function" ? config.forms() : (config.forms ?? [])
@@ -413,15 +367,18 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
     if (/^\/api\/session\/[^/]+\/inbox$/.test(path) && route.request().method() === "GET")
       return json(route, { data: [] })
+    const sessionPermission = path.match(/^\/api\/session\/([^/]+)\/permission$/)?.[1]
+    if (sessionPermission && route.request().method() === "GET") {
+      const permissions = typeof config.permissions === "function" ? config.permissions() : (config.permissions ?? [])
+      return json(route, {
+        data: permissions.map(currentPermission).filter((permission) => permission.sessionID === sessionPermission),
+      })
+    }
     if (/^\/api\/session\/[^/]+\/permission\/[^/]+\/reply$/.test(path) && route.request().method() === "POST") {
       return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
     }
-    if (/^\/question\/[^/]+\/(reply|reject)$/.test(path) && route.request().method() === "POST")
-      return json(route, true)
-    if (/^\/session\/[^/]+\/permissions\/[^/]+$/.test(path) && route.request().method() === "POST")
-      return json(route, true)
     if (
-      /^\/api\/session\/[^/]+\/(archive|rename|interrupt|revert\/clear|revert\/commit)$/.test(path) &&
+      /^\/api\/session\/[^/]+\/(rename|interrupt|revert\/clear|revert\/commit)$/.test(path) &&
       route.request().method() === "POST"
     ) {
       return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
@@ -429,10 +386,6 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
     if (/^\/api\/session\/[^/]+$/.test(path) && route.request().method() === "DELETE") {
       return route.fulfill({ status: 204, headers: { "access-control-allow-origin": "*" } })
     }
-    if (emptyObject.has(path)) return json(route, {})
-    if (emptyList.has(path)) return json(route, [])
-    if (path in staticRoutes) return json(route, staticRoutes[path])
-
     const currentSessionMatch = path.match(/^\/api\/session\/([^/]+)$/)
     if (currentSessionMatch) {
       const session = config.sessions.find((item) => item.id === currentSessionMatch[1])
@@ -442,69 +395,37 @@ export async function mockOpenCodeServer(page: Page, config: MockServerConfig) {
       })
     }
 
-    const currentMessageMatch = path.match(/^\/api\/session\/([^/]+)\/message\/([^/]+)$/)
-    if (currentMessageMatch) {
-      config.onMessage?.({ sessionID: currentMessageMatch[1]!, messageID: currentMessageMatch[2]! })
-      if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
-      const message = config.message?.(currentMessageMatch[1]!, currentMessageMatch[2]!)
-      if (message === undefined) return json(route, { error: "Message not found" }, undefined, 404)
-      return json(route, { data: currentMessage(message) })
-    }
-
-    const sessionMatch = path.match(/^\/session\/([^/]+)$/)
-    if (sessionMatch) return json(route, config.sessions.find((session) => session.id === sessionMatch[1]) ?? {})
-
-    const projectMatch = path.match(/^\/project\/([^/]+)$/)
-    if (projectMatch) return json(route, config.project)
-
-    const messageMatch = path.match(/^\/session\/([^/]+)\/message\/([^/]+)$/)
+    const messageMatch = path.match(/^\/api\/session\/([^/]+)\/message\/([^/]+)$/)
     if (messageMatch) {
       config.onMessage?.({ sessionID: messageMatch[1]!, messageID: messageMatch[2]! })
       if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
-      const message = config.message?.(messageMatch[1]!, messageMatch[2]!)
+      const message =
+        config.message?.(messageMatch[1]!, messageMatch[2]!) ??
+        config.pageMessages(messageMatch[1]!, Number.MAX_SAFE_INTEGER).items.find((item) => item.id === messageMatch[2])
       if (message === undefined) return json(route, { error: "Message not found" }, undefined, 404)
-      return json(route, message)
+      return json(route, { data: message })
     }
 
-    const todoMatch = path.match(/^\/session\/([^/]+)\/todo$/)
-    if (todoMatch) return json(route, config.todos?.(todoMatch[1]!) ?? [])
-    if (/^\/session\/[^/]+\/(children|diff)$/.test(path)) return json(route, [])
-
-    const currentMessagesMatch = path.match(/^\/api\/session\/([^/]+)\/message$/)
-    if (currentMessagesMatch) {
-      const token = url.searchParams.get("cursor") ?? undefined
-      const before = token ? cursors.get(token) : undefined
-      if (token && !before) return json(route, { error: "Invalid cursor" }, undefined, 400)
-      config.onMessages?.({ sessionID: currentMessagesMatch[1], before, phase: "start" })
-      await config.beforeMessagesResponse?.({ sessionID: currentMessagesMatch[1]!, before })
-      if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
-      const pageData = config.pageMessages(currentMessagesMatch[1], Number(url.searchParams.get("limit") ?? 50), before)
-      config.onMessages?.({ sessionID: currentMessagesMatch[1], before, phase: "end" })
-      const cursor = pageData.cursor ? `cursor_${++nextCursor}` : undefined
-      if (cursor) cursors.set(cursor, pageData.cursor!)
-      return json(route, {
-        data: pageData.items.map(currentMessage).reverse(),
-        cursor: { next: cursor },
-      })
-    }
-
-    const messagesMatch = path.match(/^\/session\/([^/]+)\/message$/)
+    const messagesMatch = path.match(/^\/api\/session\/([^/]+)\/message$/)
     if (messagesMatch) {
-      const token = url.searchParams.get("before") ?? undefined
+      const token = url.searchParams.get("cursor") ?? undefined
       const before = token ? cursors.get(token) : undefined
       if (token && !before) return json(route, { error: "Invalid cursor" }, undefined, 400)
       config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "start" })
       await config.beforeMessagesResponse?.({ sessionID: messagesMatch[1]!, before })
       if (config.messageDelay !== undefined) await new Promise((resolve) => setTimeout(resolve, config.messageDelay))
-      const pageData = config.pageMessages(messagesMatch[1], Number(url.searchParams.get("limit") ?? 80), before)
+      const pageData = config.pageMessages(messagesMatch[1], Number(url.searchParams.get("limit") ?? 50), before)
       config.onMessages?.({ sessionID: messagesMatch[1], before, phase: "end" })
-      if (!pageData.cursor) return json(route, pageData.items)
-      const cursor = `cursor_${++nextCursor}`
-      cursors.set(cursor, pageData.cursor)
-      return json(route, pageData.items, { "x-next-cursor": cursor })
+      const cursor = pageData.cursor ? `cursor_${++nextCursor}` : undefined
+      if (cursor) cursors.set(cursor, pageData.cursor!)
+      return json(route, {
+        data: url.searchParams.get("order") === "asc" ? pageData.items : pageData.items.toReversed(),
+        cursor: { next: cursor },
+      })
     }
 
-    if (url.port === targetPort && targetPort !== appPort) return json(route, {})
+    if (url.port === targetPort && targetPort !== appPort)
+      return json(route, { error: `Unhandled mock route: ${path}` }, undefined, 404)
     return route.fallback()
   })
 }
@@ -522,13 +443,21 @@ function providerConfig(config: MockServerConfig) {
 
 function currentProviders(value: unknown) {
   if (!record(value) || !Array.isArray(value.all)) return Array.isArray(value) ? value : []
-  return value.all
-    .filter(record)
-    .flatMap((provider) =>
-      typeof provider.id === "string" && typeof provider.name === "string"
-        ? [{ id: provider.id, name: provider.name, package: provider.id }]
-        : [],
-    )
+  const connected = new Set(
+    Array.isArray(value.connected) ? value.connected.filter((id) => typeof id === "string") : [],
+  )
+  return value.all.filter(record).flatMap((provider) =>
+    typeof provider.id === "string" && typeof provider.name === "string"
+      ? [
+          {
+            id: provider.id,
+            name: provider.name,
+            package: provider.id,
+            activation: connected.has(provider.id) ? "enabled" : "auto",
+          },
+        ]
+      : [],
+  )
 }
 
 function currentModels(value: unknown) {
@@ -584,7 +513,7 @@ function currentDefaultModel(value: unknown) {
 function currentPermission(value: unknown) {
   const permission = value as Record<string, unknown>
   if (permission.action) return permission
-  const tool = permission.tool as { messageID?: string; callID?: string } | undefined
+  const tool = permission.tool as { messageID?: string; callID?: string; id?: string } | undefined
   return {
     id: permission.id,
     sessionID: permission.sessionID,
@@ -593,7 +522,9 @@ function currentPermission(value: unknown) {
     save: permission.always,
     metadata: permission.metadata,
     source:
-      tool?.messageID && tool.callID ? { type: "tool", messageID: tool.messageID, callID: tool.callID } : undefined,
+      tool?.messageID && (tool.id || tool.callID)
+        ? { type: "tool", messageID: tool.messageID, id: tool.id ?? tool.callID }
+        : undefined,
   }
 }
 
@@ -634,202 +565,6 @@ export function currentSession(session: { id: string } & Record<string, unknown>
   }
 }
 
-export function currentMessage(value: unknown): SessionMessageInfo {
-  if (isCurrentMessage(value)) return value
-  if (!record(value) || !record(value.info) || !Array.isArray(value.parts)) throw new Error("Invalid message fixture")
-
-  const info = value.info
-  const parts = value.parts.filter(record)
-  if (typeof info.id !== "string" || !record(info.time) || typeof info.time.created !== "number")
-    throw new Error("Invalid legacy message fixture")
-
-  const time = {
-    created: info.time.created,
-    ...(typeof info.time.completed === "number" ? { completed: info.time.completed } : {}),
-  }
-  if (info.role === "user") {
-    return {
-      id: info.id,
-      type: "user",
-      time: { created: time.created },
-      text: parts
-        .flatMap((part) => (part.type === "text" && typeof part.text === "string" ? [part.text] : []))
-        .join("\n"),
-      files: parts.flatMap((part) => (part.type === "file" ? legacyFile(part) : [])),
-      agents: parts.flatMap((part) => (part.type === "agent" ? legacyAgent(part) : [])),
-    }
-  }
-  if (info.role !== "assistant") throw new Error("Invalid legacy message role")
-
-  return {
-    id: info.id,
-    type: "assistant",
-    time,
-    agent: typeof info.agent === "string" ? info.agent : typeof info.mode === "string" ? info.mode : "build",
-    model: {
-      id: typeof info.modelID === "string" ? info.modelID : "model",
-      providerID: typeof info.providerID === "string" ? info.providerID : "provider",
-      ...(typeof info.variant === "string" ? { variant: info.variant } : {}),
-    },
-    content: parts.flatMap((part) => legacyAssistantContent(part, time.created)),
-    ...(typeof info.cost === "number" ? { cost: info.cost } : {}),
-    ...(tokens(info.tokens) ? { tokens: tokens(info.tokens) } : {}),
-    ...(structuredError(info.error) ? { error: structuredError(info.error) } : {}),
-    ...(finish(info.finish) ? { finish: finish(info.finish) } : {}),
-  }
-}
-
-function isCurrentMessage(value: unknown): value is SessionMessageInfo {
-  return record(value) && typeof value.id === "string" && typeof value.type === "string" && !record(value.info)
-}
-
-function legacyFile(part: Record<string, unknown>): PromptFileAttachment[] {
-  if (typeof part.mime !== "string" || typeof part.url !== "string") return []
-  const data = part.url.match(/^data:[^,]*;base64,(.*)$/)?.[1] ?? ""
-  const source = record(part.source) ? part.source : undefined
-  const sourceText = source && record(source.text) ? source.text : undefined
-  const mention = mentionFrom(sourceText)
-  const uri = source?.type === "resource" && typeof source.uri === "string" ? source.uri : part.url
-  return [
-    {
-      data,
-      mime: part.mime,
-      source: part.url.startsWith("data:") ? { type: "inline" } : { type: "uri", uri },
-      ...(typeof part.filename === "string" ? { name: part.filename } : {}),
-      ...(mention ? { mention } : {}),
-    },
-  ]
-}
-
-function legacyAgent(part: Record<string, unknown>): PromptAgentAttachment[] {
-  if (typeof part.name !== "string") return []
-  const mention = mentionFrom(record(part.source) ? part.source : undefined)
-  return [{ name: part.name, ...(mention ? { mention } : {}) }]
-}
-
-function mentionFrom(value: Record<string, unknown> | undefined) {
-  if (!value || typeof value.value !== "string" || typeof value.start !== "number" || typeof value.end !== "number")
-    return
-  return { text: value.value, start: value.start, end: value.end }
-}
-
-function legacyAssistantContent(part: Record<string, unknown>, created: number): SessionMessageAssistant["content"] {
-  if (part.type === "text" && typeof part.text === "string")
-    return [
-      { type: "text", text: part.text, ...(jsonRecord(part.metadata) ? { state: jsonRecord(part.metadata) } : {}) },
-    ]
-  if (part.type === "reasoning" && typeof part.text === "string") {
-    const time = record(part.time) ? part.time : undefined
-    return [
-      {
-        type: "reasoning",
-        text: part.text,
-        ...(jsonRecord(part.metadata) ? { state: jsonRecord(part.metadata) } : {}),
-        ...(time && typeof time.start === "number"
-          ? {
-              time: {
-                created: time.start,
-                ...(typeof time.end === "number" ? { completed: time.end } : {}),
-              },
-            }
-          : {}),
-      },
-    ]
-  }
-  if (part.type !== "tool" || typeof part.id !== "string" || typeof part.tool !== "string" || !record(part.state))
-    return []
-
-  const state = part.state
-  const time = record(state.time) ? state.time : undefined
-  const toolTime = {
-    created: time && typeof time.start === "number" ? time.start : created,
-    ...(time && typeof time.start === "number" ? { ran: time.start } : {}),
-    ...(time && typeof time.end === "number" ? { completed: time.end } : {}),
-  }
-  const input = jsonRecord(state.input) ?? {}
-  const metadata = jsonRecord(state.metadata)
-  const base = {
-    type: "tool" as const,
-    id: typeof part.callID === "string" ? part.callID : part.id,
-    name: part.tool,
-    time: toolTime,
-    ...(typeof part.executed === "boolean" ? { executed: part.executed } : {}),
-    ...(jsonRecord(part.providerState) ? { providerState: jsonRecord(part.providerState) } : {}),
-    ...(jsonRecord(part.providerResultState) ? { providerResultState: jsonRecord(part.providerResultState) } : {}),
-  }
-  if (state.status === "pending")
-    return [
-      {
-        ...base,
-        state: { status: "streaming", input: typeof state.raw === "string" ? state.raw : JSON.stringify(input) },
-      },
-    ]
-  if (state.status === "completed")
-    return [
-      {
-        ...base,
-        state: {
-          status: "completed",
-          input,
-          content: [{ type: "text", text: typeof state.output === "string" ? state.output : "" }],
-          ...(metadata ? { metadata } : {}),
-        },
-      },
-    ]
-  if (state.status === "error")
-    return [
-      {
-        ...base,
-        state: {
-          status: "error",
-          input,
-          error: structuredError(state.error) ?? { type: "ToolError", message: "Tool failed" },
-          ...(metadata ? { metadata } : {}),
-        },
-      },
-    ]
-  return [{ ...base, state: { status: "running", input, metadata: metadata ?? {} } }]
-}
-
-function structuredError(value: unknown): SessionStructuredError | undefined {
-  if (typeof value === "string") return { type: "Error", message: value }
-  if (!record(value)) return
-  if (typeof value.type === "string" && typeof value.message === "string")
-    return { type: value.type, message: value.message }
-  if (typeof value.name !== "string" || !record(value.data) || typeof value.data.message !== "string") return
-  return { type: value.name, message: value.data.message }
-}
-
-function tokens(value: unknown): SessionMessageAssistant["tokens"] | undefined {
-  if (!record(value) || !record(value.cache)) return
-  if (
-    typeof value.input !== "number" ||
-    typeof value.output !== "number" ||
-    typeof value.reasoning !== "number" ||
-    typeof value.cache.read !== "number" ||
-    typeof value.cache.write !== "number"
-  )
-    return
-  return {
-    input: value.input,
-    output: value.output,
-    reasoning: value.reasoning,
-    cache: { read: value.cache.read, write: value.cache.write },
-  }
-}
-
-function finish(value: unknown): SessionMessageAssistant["finish"] | undefined {
-  if (
-    value === "stop" ||
-    value === "length" ||
-    value === "tool-calls" ||
-    value === "content-filter" ||
-    value === "error" ||
-    value === "unknown"
-  )
-    return value
-}
-
 function jsonRecord(value: unknown): Record<string, JsonValue> | undefined {
   if (!record(value)) return
   return Object.fromEntries(
@@ -871,18 +606,3 @@ function sse(route: Route, events?: unknown[], retry?: number) {
     body: `${retry === undefined ? "" : `retry: ${retry}\n\n`}${events?.map((event) => `data: ${JSON.stringify(event)}\n\n`).join("") || ": ok\n\n"}`,
   })
 }
-
-function currentEvent(input: unknown) {
-  if (!input || typeof input !== "object" || !("payload" in input)) return input
-  const envelope = input as { directory?: string; payload?: unknown }
-  if (!envelope.payload || typeof envelope.payload !== "object") return input
-  const payload = envelope.payload as { id?: string; type?: string; properties?: unknown }
-  if (!payload.type) return input
-  return {
-    id: payload.id ?? `evt_mock_${Date.now()}`,
-    created: Date.now(),
-    type: payload.type,
-    data: payload.properties ?? {},
-    location: envelope.directory && envelope.directory !== "global" ? { directory: envelope.directory } : undefined,
-  }
-}

packages/app/e2e/utils/sse-transport.ts

@@ -1,4 +1,5 @@
 import type { Page } from "@playwright/test"
+import type { OpenCodeEvent } from "@opencode-ai/client/promise"
 
 export type SseConnectionRecord = {
   id: number
@@ -27,7 +28,7 @@ export type SseEventOptions = {
   marker?: string
 }
 
-export type SseTransport<T> = {
+export type SseTransport<T extends OpenCodeEvent> = {
   server: string
   waitForConnection(options?: { after?: number; timeout?: number }): Promise<SseConnectionRecord>
   send(payload: T, options?: SseEventOptions): Promise<SseDeliveryAcknowledgement>
@@ -55,7 +56,7 @@ type BrowserTransport = Window & {
   }
 }
 
-export async function installSseTransport<T>(
+export async function installSseTransport<T extends OpenCodeEvent = OpenCodeEvent>(
   page: Page,
   options: { server: string; retry?: number },
 ): Promise<SseTransport<T>> {
@@ -93,21 +94,6 @@ export async function installSseTransport<T>(
           eventOptions.retry === undefined ? "" : `retry: ${eventOptions.retry}\n`,
           `data: ${JSON.stringify(payload)}\n\n`,
         ].join("")
-      const currentEvent = (input: unknown) => {
-        if (!input || typeof input !== "object" || !("payload" in input)) return input
-        const envelope = input as { directory?: string; payload?: unknown }
-        if (!envelope.payload || typeof envelope.payload !== "object") return input
-        const payload = envelope.payload as { id?: string; type?: string; properties?: unknown }
-        if (!payload.type) return input
-        return {
-          id: payload.id ?? `evt_mock_${Date.now()}`,
-          created: Date.now(),
-          type: payload.type,
-          data: payload.properties ?? {},
-          location:
-            envelope.directory && envelope.directory !== "global" ? { directory: envelope.directory } : undefined,
-        }
-      }
       const acknowledge = (
         connection: Connection,
         bytes: number,
@@ -155,13 +141,14 @@ export async function installSseTransport<T>(
           output.forEach((chunk) => connection.controller.enqueue(chunk))
           return acknowledge(connection, input.bytes.length, output.length)
         }
-        const encoded = input.deliveries.map((delivery) => {
-          const payload = connection.path === "/api/event" ? currentEvent(delivery.payload) : delivery.payload
-          return { delivery, payload, bytes: encoder.encode(frame(payload, delivery.options)) }
-        })
+        const encoded = input.deliveries.map((delivery) => ({
+          delivery,
+          payload: delivery.payload,
+          bytes: encoder.encode(frame(delivery.payload, delivery.options)),
+        }))
         encoded.forEach((item) => marker(item.delivery.options?.marker))
         if (input.burst) {
-          const bytes = encoder.encode(encoded.map((item) => frame(item.payload, item.delivery.options)).join(""))
+          const bytes = encoder.encode(encoded.map((item) => new TextDecoder().decode(item.bytes)).join(""))
           connection.controller.enqueue(bytes)
           return encoded.map((item) => acknowledge(connection, item.bytes.byteLength, 1, item.delivery.options?.id))
         }
@@ -266,15 +253,11 @@ export async function installSseTransport<T>(
       return command({ type: "send", deliveries: [{ payload, options: eventOptions }], burst: false, cuts: [...cuts] })
     },
     heartbeat(eventOptions) {
+      const bytes = new TextEncoder().encode(": heartbeat\n\n")
       return command({
-        type: "send",
-        deliveries: [
-          {
-            payload: { directory: "global", payload: { type: "server.heartbeat", properties: {} } } as T,
-            options: eventOptions,
-          },
-        ],
-        burst: false,
+        type: "raw",
+        bytes: Array.from(bytes),
+        marker: eventOptions?.marker,
       })
     },
     writeRaw(value, cuts, marker) {

packages/app/e2e/utils/visual-stability.ts

@@ -1,6 +1,6 @@
 import type { Page, TestInfo } from "@playwright/test"
 import { analyzeVisualObservations, analyzeVisualTraceByMarker } from "./visual-stability/analyzer"
-import { legacyVisualPlan, type LegacyVisualStabilityOptions } from "./visual-stability/invariant"
+import { stabilityPlan, type VisualStabilityOptions } from "./visual-stability/invariant"
 import type { CapturedFrame, VisualStabilityTrace } from "./visual-stability/model"
 import { markVisualProbe, startVisualProbe, stopVisualProbe } from "./visual-stability/probe"
 import type { VisualRegionDefinition } from "./visual-stability/regions"
@@ -25,22 +25,19 @@ export async function markVisualStability(page: Page, label: string) {
   await markVisualProbe(page, label)
 }
 
-export function analyzeVisualStability(trace: VisualStabilityTrace, options: LegacyVisualStabilityOptions = {}) {
-  return analyzeVisualObservations(trace.samples, legacyVisualPlan(options))
+export function analyzeVisualStability(trace: VisualStabilityTrace, options: VisualStabilityOptions = {}) {
+  return analyzeVisualObservations(trace.samples, stabilityPlan(options))
 }
 
-export function analyzeVisualStabilityByMarker(
-  trace: VisualStabilityTrace,
-  options: LegacyVisualStabilityOptions = {},
-) {
-  return analyzeVisualTraceByMarker(trace, legacyVisualPlan(options))
+export function analyzeVisualStabilityByMarker(trace: VisualStabilityTrace, options: VisualStabilityOptions = {}) {
+  return analyzeVisualTraceByMarker(trace, stabilityPlan(options))
 }
 
 export async function expectVisualStability(
   testInfo: TestInfo,
   name: string,
   trace: VisualStabilityTrace,
-  options: LegacyVisualStabilityOptions = {},
+  options: VisualStabilityOptions = {},
 ) {
   await reportVisualStability(
     testInfo,
@@ -49,6 +46,6 @@ export async function expectVisualStability(
       ...trace,
       frames: (trace as VisualStabilityTrace & { [capturedFrames]?: CapturedFrame[] })[capturedFrames] ?? [],
     },
-    legacyVisualPlan(options),
+    stabilityPlan(options),
   )
 }

packages/app/e2e/utils/visual-stability/invariant.ts

@@ -30,7 +30,7 @@ export type VisualPlan<RegionName extends string = string> = {
   aggregateMotion?: boolean
 }
 
-export type LegacyVisualStabilityOptions<RegionName extends string = string> = {
+export type VisualStabilityOptions<RegionName extends string = string> = {
   flow?: RegionName[]
   motionTolerance?: number
   opacityFloor?: number
@@ -58,8 +58,8 @@ export function visualPlan<const Regions extends Record<string, VisualRegionDefi
   return { ...options, regionNames: Object.keys(regions) as Extract<keyof Regions, string>[], invariants }
 }
 
-export function legacyVisualPlan<RegionName extends string>(
-  options: LegacyVisualStabilityOptions<RegionName> = {},
+export function stabilityPlan<RegionName extends string>(
+  options: VisualStabilityOptions<RegionName> = {},
 ): VisualPlan<RegionName> {
   const inferred =
     options.inferRequired === false

packages/app/e2e/utils/waits.ts

@@ -1,5 +1,5 @@
 import { expect, type Locator, type Page } from "@playwright/test"
-import { base64Encode } from "@opencode-ai/core/util/encode"
+import { base64Encode } from "@opencode-ai/util/encode"
 
 export const APP_READY_TIMEOUT = 30_000
 

packages/app/index.html

@@ -21,7 +21,6 @@
     <script id="oc-theme-preload-script" src="/oc-theme-preload.js"></script>
   </head>
   <body
-    data-new-layout
     class="antialiased overscroll-none font-(family-name:--font-family-text) text-[13px] font-[440] overflow-hidden bg-v2-background-bg-deep"
   >
     <noscript>You need to enable JavaScript to run this app.</noscript>

packages/app/package.json

@@ -56,7 +56,6 @@
     "@dnd-kit/solid": "0.5.0",
     "@kobalte/core": "catalog:",
     "@opencode-ai/client": "workspace:*",
-    "@opencode-ai/core": "workspace:*",
     "@opencode-ai/schema": "workspace:*",
     "@opencode-ai/session-ui": "workspace:*",
     "@opencode-ai/ui": "workspace:*",
@@ -74,7 +73,6 @@
     "@solidjs/router": "catalog:",
     "@tanstack/solid-query": "5.91.4",
     "@tanstack/solid-virtual": "catalog:",
-    "@thisbeyond/solid-dnd": "0.7.5",
     "diff": "catalog:",
     "effect": "catalog:",
     "fuzzysort": "catalog:",

packages/app/public/oc-theme-preload.js

@@ -2,13 +2,6 @@
   var key = "opencode-theme-id"
   var themeId = localStorage.getItem(key) || "oc-2"
 
-  if (themeId === "oc-1") {
-    themeId = "oc-2"
-    localStorage.setItem(key, themeId)
-    localStorage.removeItem("opencode-theme-css-light")
-    localStorage.removeItem("opencode-theme-css-dark")
-  }
-
   var scheme = localStorage.getItem("opencode-color-scheme") || "system"
   var isDark = scheme === "dark" || (scheme === "system" && matchMedia("(prefers-color-scheme: dark)").matches)
   var mode = isDark ? "dark" : "light"

packages/app/src/app.tsx

@@ -12,7 +12,6 @@ import { type BaseRouterProps, Navigate, Route, Router, useParams, useSearchPara
 import { QueryClient, QueryClientProvider } from "@tanstack/solid-query"
 import {
   type Component,
-  createEffect,
   createMemo,
   createRenderEffect,
   ErrorBoundary,
@@ -32,16 +31,15 @@ import { LayoutProvider } from "@/context/layout"
 import { ModelsProvider } from "@/context/models"
 import { usePlatform } from "@/context/platform"
 import { PromptProvider } from "@/context/prompt"
-import { ServerConnection, ServersProvider, useServers } from "@/context/servers"
+import { ServerConnection, ServersProvider } from "@/context/servers"
 import { SettingsProvider } from "@/context/settings"
 import { TabsProvider, useTabs, type DraftTab } from "@/context/tabs"
-import { SDKProvider } from "@/context/sdk"
+import { LocationProvider } from "@/context/location"
 import { WslServersProvider } from "@/wsl/context"
-import { DirectoryDataProvider } from "@/pages/directory-layout"
+import { SessionUIProvider } from "@/pages/directory-layout"
 import Layout from "@/pages/layout"
 import { ErrorPage } from "./pages/error"
-import { legacySessionServer, requireServerKey, sessionHref } from "./utils/session-route"
-import { decode64 } from "@/utils/base64"
+import { requireServerKey } from "./utils/session-route"
 
 import { TargetSessionRouteContent } from "@/pages/session"
 import { Home } from "@/pages/home"
@@ -49,36 +47,17 @@ import { ServerProvider } from "./context/server"
 
 const NewSession = lazy(() => import("@/pages/new-session"))
 
-const DirectoryDraftRedirect = () => {
-  const params = useParams()
-  const [search] = useSearchParams<{ draftId?: string; prompt?: string }>()
-  const server = useServers()
-  const tabs = useTabs()
-
-  createEffect(() => {
-    if (search.draftId || !tabs.ready()) return
-    const directory = decode64(params.dir)
-    if (!directory) return
-    tabs.newDraft({ server: ServerConnection.key(server.list[0])!, directory }, search.prompt)
-  })
-
-  return null
-}
-
 function TargetServerRoute(props: ParentProps) {
-  const params = useParams<{ serverKey: string; id: string }>()
+  const params = useParams<{ serverKey: string }>()
   const global = useGlobal()
-  const conn = createMemo(() => {
-    const key = requireServerKey(params.serverKey)
-    return global.servers.list().find((item) => ServerConnection.key(item) === key)
-  })
+  const conn = createMemo(() =>
+    global.servers.list().find((item) => ServerConnection.key(item) === requireServerKey(params.serverKey)),
+  )
 
   return (
     // Owns the server-identity remount. Session changes must not remount this subtree.
-    <Show when={requireServerKey(params.serverKey)} keyed>
-      <Show when={conn()} keyed>
-        {(conn) => <ServerProvider conn={conn}>{props.children}</ServerProvider>}
-      </Show>
+    <Show when={conn()} keyed>
+      {(conn) => <ServerProvider conn={conn}>{props.children}</ServerProvider>}
     </Show>
   )
 }
@@ -87,14 +66,12 @@ function DraftRoute() {
   const [search] = useSearchParams<{ draftId?: string }>()
   const tabs = useTabs()
   return (
-    <Show when={tabs.ready()}>
-      <Show
-        when={tabs.store.find((tab): tab is DraftTab => tab.type === "draft" && tab.draftID === search.draftId)}
-        keyed
-        fallback={<Navigate href="/" />}
-      >
-        {(draft) => <ResolvedDraftRoute draft={draft} />}
-      </Show>
+    <Show
+      when={tabs.store.find((tab): tab is DraftTab => tab.type === "draft" && tab.draftID === search.draftId)}
+      keyed
+      fallback={tabs.ready() && <Navigate href="/" />}
+    >
+      {(draft) => <ResolvedDraftRoute draft={draft} />}
     </Show>
   )
 }
@@ -109,13 +86,13 @@ function ResolvedDraftRoute(props: { draft: DraftTab }) {
         {(conn) => (
           <ServerProvider conn={conn}>
             <ModelsProvider directory={props.draft.directory}>
-              <SDKProvider directory={props.draft.directory}>
-                <DirectoryDataProvider directory={props.draft.directory} server={props.draft.server}>
+              <LocationProvider directory={props.draft.directory}>
+                <SessionUIProvider directory={props.draft.directory} server={props.draft.server}>
                   <DraftProviders>
                     <NewSession draftId={props.draft.draftID} />
                   </DraftProviders>
-                </DirectoryDataProvider>
-              </SDKProvider>
+                </SessionUIProvider>
+              </LocationProvider>
             </ModelsProvider>
           </ServerProvider>
         )}
@@ -166,10 +143,9 @@ function QueryProvider(props: ParentProps) {
   return <QueryClientProvider client={client}>{props.children}</QueryClientProvider>
 }
 
-function BodyDesignClass() {
+function BodyTypography() {
   createRenderEffect(() => {
     if (typeof document === "undefined") return
-    document.body.toggleAttribute("data-new-layout", true)
     document.body.classList.remove("text-12-regular")
     document.body.classList.add("font-(family-name:--font-family-text)", "text-[13px]", "font-[440]")
   })
@@ -265,15 +241,13 @@ export function AppInterface(props: {
   canonicalLocalServer?: ServerConnection.Key
   servers?: Array<ServerConnection.Any>
   router?: Component<BaseRouterProps>
-  disableHealthCheck?: boolean
-  startup?: Promise<void>
 }) {
   // The visual layout lives in the router root so it remains mounted across
   // route changes. Draft and session routes override only their server-bound data
   // providers beneath it.
   const Root = (rootProps: ParentProps) => (
     <TabsProvider>
-      <BodyDesignClass />
+      <BodyTypography />
       <CommandProvider>
         <DesktopCommands />
         <HighlightsProvider>
@@ -293,7 +267,6 @@ export function AppInterface(props: {
       <SettingsProvider>
         <GlobalProvider>
           <Dynamic component={props.router ?? Router} root={Root}>
-            {/* Proper Routes */}
             <Route component={AppLayout}>
               <Route path="/" component={Home} />
               <Route
@@ -306,36 +279,9 @@ export function AppInterface(props: {
               />
               <Route path="/new-session" component={DraftRoute} />
             </Route>
-            {/* Legacy Routes */}
-            <Route>
-              <Route path="/:dir" component={DirectoryDraftRedirect} />
-              <Route path="/:dir/session" component={DirectoryDraftRedirect} />
-              <Route path="/:dir/session/:id" component={LegacySessionRedirect} />
-            </Route>
           </Dynamic>
         </GlobalProvider>
       </SettingsProvider>
     </ServersProvider>
   )
 }
-
-function LegacySessionRedirect() {
-  const server = useServers()
-  const tabs = useTabs()
-  const params = useParams<{ id: string }>()
-
-  return (
-    <Show when={tabs.ready()}>
-      <Navigate
-        href={sessionHref(
-          legacySessionServer(
-            tabs.store.filter((item) => item.type === "session"),
-            params.id,
-            ServerConnection.key(server.list[0]!),
-          ),
-          params.id,
-        )}
-      />
-    </Show>
-  )
-}

packages/app/src/components/command-palette.ts

@@ -1,4 +1,4 @@
-import { getFilename } from "@opencode-ai/core/util/path"
+import { getFilename } from "@opencode-ai/util/path"
 import type { Project } from "@/types"
 import type { SessionInfo } from "@opencode-ai/client/promise"
 import { useDialog } from "@opencode-ai/ui/context/dialog"

packages/app/src/components/dialog-command-palette-v2.tsx

@@ -1,4 +1,4 @@
-import { getDirectory, getFilename } from "@opencode-ai/core/util/path"
+import { getDirectory, getFilename } from "@opencode-ai/util/path"
 import { FileIcon } from "@opencode-ai/ui/file-icon"
 import { ScrollView } from "@opencode-ai/ui/scroll-view"
 import { Dialog, DialogBody } from "@opencode-ai/ui/v2/dialog-v2"

packages/app/src/components/dialog-connect-provider.tsx

@@ -1,12 +1,9 @@
 import { Button } from "@opencode-ai/ui/button"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
-import { Dialog } from "@opencode-ai/ui/dialog"
 import { Icon } from "@opencode-ai/ui/icon"
-import { IconButton } from "@opencode-ai/ui/icon-button"
-import { List, type ListRef } from "@opencode-ai/ui/list"
+import { List } from "@opencode-ai/ui/list"
 import { ProviderIcon } from "@opencode-ai/ui/provider-icon"
 import { Spinner } from "@opencode-ai/ui/spinner"
-import { Tag } from "@opencode-ai/ui/tag"
 import { TextField } from "@opencode-ai/ui/text-field"
 import { ButtonV2 } from "@opencode-ai/ui/v2/button-v2"
 import { DialogBody, DialogHeader, DialogTitle, DialogV2 } from "@opencode-ai/ui/v2/dialog-v2"
@@ -16,10 +13,8 @@ import { type Component, createMemo, createUniqueId, For, Match, onMount, Show,
 import { createStore } from "solid-js/store"
 import { useParams } from "@solidjs/router"
 import { ExternalLink } from "@/components/external-link"
-import { useServerSync } from "@/context/server-sync"
 import { useLanguage } from "@/context/language"
-import { useSettings } from "@/context/settings"
-import { popularProviders, useProviders } from "@/hooks/use-providers"
+import { useProviders } from "@/hooks/use-providers"
 import { useIntegrations } from "@/hooks/use-integrations"
 import { CustomProviderForm } from "./dialog-custom-provider"
 import { decode64 } from "@/utils/base64"
@@ -47,8 +42,6 @@ export const DialogConnectProvider: Component<{
   const fallback = useProviderConnectController()
   const controller = props.controller ?? fallback
   const language = useLanguage()
-  const settings = useSettings()
-  const newLayout = settings.general.newLayoutDesigns
   const reset = controller.back
   const back = { current: reset }
   let focusHost: HTMLDivElement | undefined
@@ -62,7 +55,7 @@ export const DialogConnectProvider: Component<{
     return (
       <Switch>
         <Match when={controller.selected() === CUSTOM_ID}>
-          <CustomProviderForm autofocus={!newLayout()} />
+          <CustomProviderForm autofocus={false} />
         </Match>
         <Match when={controller.selected() && controller.selected() !== CUSTOM_ID ? controller.selected() : undefined}>
           {(provider) => (
@@ -75,140 +68,42 @@ export const DialogConnectProvider: Component<{
           )}
         </Match>
         <Match when={true}>
-          <ProviderPicker
-            directory={props.directory}
-            onSelect={select}
-            onPrepare={newLayout() ? holdFocus : undefined}
-          />
+          <ProviderPicker directory={props.directory} onSelect={select} onPrepare={holdFocus} />
         </Match>
       </Switch>
     )
   }
 
   return (
-    <Show
-      when={newLayout()}
-      fallback={
-        <Dialog
-          class="h-full"
-          transition
-          title={
-            <Show when={controller.selected()} fallback={language.t("command.provider.connect")}>
-              <IconButton
-                tabIndex={-1}
-                icon="arrow-left"
-                variant="ghost"
-                onClick={() => back.current()}
-                aria-label={language.t("common.goBack")}
-              />
-            </Show>
-          }
-        >
-          <Content />
-        </Dialog>
-      }
+    <DialogV2
+      containerClass="!h-[min(calc(100vh_-_16px),512px)] !w-[min(calc(100vw_-_16px),640px)]"
+      class="[font-family:var(--v2-font-family-sans)] [&_[data-slot=dialog-header]]:!px-5 [&_[data-slot=dialog-header-title]]:!text-[15px] [&_[data-slot=dialog-header-title]]:!tracking-[-0.13px]"
     >
-      <DialogV2
-        containerClass="!h-[min(calc(100vh_-_16px),512px)] !w-[min(calc(100vw_-_16px),640px)]"
-        class="[font-family:var(--v2-font-family-sans)] [&_[data-slot=dialog-header]]:!px-5 [&_[data-slot=dialog-header-title]]:!text-[15px] [&_[data-slot=dialog-header-title]]:!tracking-[-0.13px]"
-      >
-        <DialogHeader closeLabel={language.t("common.close")}>
-          <Show
-            when={controller.selected()}
-            fallback={<DialogTitle>{language.t("command.provider.connect")}</DialogTitle>}
+      <DialogHeader closeLabel={language.t("common.close")}>
+        <Show
+          when={controller.selected()}
+          fallback={<DialogTitle>{language.t("command.provider.connect")}</DialogTitle>}
+        >
+          <button
+            type="button"
+            class="flex size-5 items-center justify-center rounded-sm text-v2-icon-icon-muted hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
+            onClick={() => back.current()}
+            aria-label={language.t("common.goBack")}
           >
-            <button
-              type="button"
-              class="flex size-5 items-center justify-center rounded-sm text-v2-icon-icon-muted hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
-              onClick={() => back.current()}
-              aria-label={language.t("common.goBack")}
-            >
-              <Icon name="arrow-left" size="small" />
-            </button>
-          </Show>
-        </DialogHeader>
-        <DialogBody class="min-h-0 flex-1 overflow-hidden px-2 pb-2">
-          <div ref={focusHost} tabIndex={-1} class="flex min-h-0 flex-1 flex-col outline-none">
-            <Content />
-          </div>
-        </DialogBody>
-      </DialogV2>
-    </Show>
+            <Icon name="arrow-left" size="small" />
+          </button>
+        </Show>
+      </DialogHeader>
+      <DialogBody class="min-h-0 flex-1 overflow-hidden px-2 pb-2">
+        <div ref={focusHost} tabIndex={-1} class="flex min-h-0 flex-1 flex-col outline-none">
+          <Content />
+        </div>
+      </DialogBody>
+    </DialogV2>
   )
 }
 
 function ProviderPicker(props: { directory?: string; onSelect: (provider: string) => void; onPrepare?: () => void }) {
-  const settings = useSettings()
-  if (settings.general.newLayoutDesigns())
-    return <ProviderPickerV2 directory={props.directory} onSelect={props.onSelect} onPrepare={props.onPrepare} />
-  const integrations = useIntegrations(() => props.directory)
-  const language = useLanguage()
-  const popularGroup = () => language.t("dialog.provider.group.popular")
-  const otherGroup = () => language.t("dialog.provider.group.other")
-  const customLabel = () => language.t("settings.providers.tag.custom")
-  const note = (id: string) => {
-    if (id === "anthropic") return language.t("dialog.provider.anthropic.note")
-    if (id === "openai") return language.t("dialog.provider.openai.note")
-    if (id.startsWith("github-copilot")) return language.t("dialog.provider.copilot.note")
-    if (id === "opencode-go") return language.t("dialog.provider.opencodeGo.tagline")
-    return undefined
-  }
-
-  return (
-    <List
-      class="px-3"
-      search={{ placeholder: language.t("dialog.provider.search.placeholder"), autofocus: true }}
-      emptyMessage={language.t("dialog.provider.empty")}
-      activeIcon="plus-small"
-      key={(x) => x?.id}
-      items={() => {
-        language.locale()
-        return [{ id: CUSTOM_ID, name: customLabel() }, ...integrations.list()]
-      }}
-      filterKeys={["id", "name"]}
-      groupBy={(x) => (popularProviders.includes(x.id) ? popularGroup() : otherGroup())}
-      sortBy={(a, b) => {
-        if (a.id === CUSTOM_ID) return -1
-        if (b.id === CUSTOM_ID) return 1
-        if (popularProviders.includes(a.id) && popularProviders.includes(b.id))
-          return popularProviders.indexOf(a.id) - popularProviders.indexOf(b.id)
-        return a.name.localeCompare(b.name)
-      }}
-      sortGroupsBy={(a, b) => {
-        const popular = popularGroup()
-        if (a.category === popular && b.category !== popular) return -1
-        if (b.category === popular && a.category !== popular) return 1
-        return 0
-      }}
-      onSelect={(x) => {
-        if (!x) return
-        props.onSelect(x.id)
-      }}
-    >
-      {(i) => (
-        <div class="px-1.25 w-full flex items-center gap-x-3">
-          <ProviderIcon data-slot="list-item-extra-icon" id={i.id} />
-          <span>{i.name}</span>
-          <Show when={i.id === "opencode"}>
-            <div class="text-14-regular text-text-weak">{language.t("dialog.provider.opencode.tagline")}</div>
-          </Show>
-          <Show when={i.id === CUSTOM_ID}>
-            <Tag>{language.t("settings.providers.tag.custom")}</Tag>
-          </Show>
-          <Show when={i.id === "opencode"}>
-            <Tag>{language.t("dialog.provider.tag.recommended")}</Tag>
-          </Show>
-          <Show when={note(i.id)}>{(value) => <div class="text-14-regular text-text-weak">{value()}</div>}</Show>
-          <Show when={i.id === "opencode-go"}>
-            <Tag>{language.t("dialog.provider.tag.recommended")}</Tag>
-          </Show>
-        </div>
-      )}
-    </List>
-  )
-}
-
-function ProviderPickerV2(props: { directory?: string; onSelect: (provider: string) => void; onPrepare?: () => void }) {
   const integrations = useIntegrations(() => props.directory)
   const language = useLanguage()
   const [store, setStore] = createStore({
@@ -362,11 +257,8 @@ function ProviderConnection(props: {
   setBack: (handler: () => void) => void
 }) {
   const dialog = useDialog()
-  const serverSync = useServerSync()
   const params = useParams()
   const language = useLanguage()
-  const settings = useSettings()
-  const newLayout = settings.general.newLayoutDesigns
   const providers = useProviders(() => props.directory)
   const directory = () => props.directory ?? decode64(params.dir)
 
@@ -385,11 +277,7 @@ function ProviderConnection(props: {
   })
   const provider = createMemo(() => ({
     id: props.provider,
-    name:
-      providers.all().get(props.provider)?.name ??
-      serverSync.data.provider.all.get(props.provider)?.name ??
-      controller.integration()?.name ??
-      props.provider,
+    name: providers.all().get(props.provider)?.name ?? controller.integration()?.name ?? props.provider,
   }))
   const methodLabel = (value?: { type?: string; label?: string }) => {
     if (!value) return ""
@@ -534,15 +422,6 @@ function ProviderConnection(props: {
     )
   }
 
-  let listRef: ListRef | undefined
-  function handleKey(e: KeyboardEvent) {
-    if (e.key === "Enter" && e.target instanceof HTMLInputElement) {
-      return
-    }
-    if (e.key === "Escape") return
-    listRef?.onKeyDown(e)
-  }
-
   function goBack() {
     if (controller.methods().length > 1 && controller.methodIndex() !== undefined) {
       controller.auth.reset()
@@ -554,66 +433,34 @@ function ProviderConnection(props: {
   props.setBack(goBack)
 
   function MethodSelection() {
-    if (newLayout())
-      return (
-        <div class="flex flex-col gap-2">
-          <div class="px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
-            {language.t("provider.connect.selectMethod", { provider: provider().name })}
-          </div>
-          <div class="flex flex-col">
-            <For each={controller.methods()}>
-              {(item, index) => {
-                const details = () => methodDetails(item)
-                return (
-                  <button
-                    type="button"
-                    class="group flex h-9 w-full items-center gap-2 rounded-md px-3 text-left text-[13px] leading-5 tracking-[-0.04px] hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
-                    onClick={() => void controller.auth.select(index())}
-                  >
-                    <span class="flex h-2 w-4 shrink-0 items-center justify-center rounded-[1px] bg-v2-background-bg-base shadow-[var(--v2-elevation-button-neutral)]">
-                      <span class="hidden h-0.5 w-2.5 bg-v2-icon-icon-base group-hover:block group-focus-visible:block" />
-                    </span>
-                    <span class="font-[530] text-v2-text-text-base">{details().label}</span>
-                    <Show when={details().hint}>
-                      {(hint) => <span class="font-[440] text-v2-text-text-muted">{hint()}</span>}
-                    </Show>
-                  </button>
-                )
-              }}
-            </For>
-          </div>
-        </div>
-      )
-
     return (
-      <>
-        <div class="text-14-regular text-text-base">
+      <div class="flex flex-col gap-2">
+        <div class="px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
           {language.t("provider.connect.selectMethod", { provider: provider().name })}
         </div>
-        <div>
-          <List
-            class="px-3"
-            ref={(ref) => {
-              listRef = ref
+        <div class="flex flex-col">
+          <For each={controller.methods()}>
+            {(item, index) => {
+              const details = () => methodDetails(item)
+              return (
+                <button
+                  type="button"
+                  class="group flex h-9 w-full items-center gap-2 rounded-md px-3 text-left text-[13px] leading-5 tracking-[-0.04px] hover:bg-v2-overlay-simple-overlay-hover focus-visible:bg-v2-overlay-simple-overlay-hover focus-visible:outline-none"
+                  onClick={() => void controller.auth.select(index())}
+                >
+                  <span class="flex h-2 w-4 shrink-0 items-center justify-center rounded-[1px] bg-v2-background-bg-base shadow-[var(--v2-elevation-button-neutral)]">
+                    <span class="hidden h-0.5 w-2.5 bg-v2-icon-icon-base group-hover:block group-focus-visible:block" />
+                  </span>
+                  <span class="font-[530] text-v2-text-text-base">{details().label}</span>
+                  <Show when={details().hint}>
+                    {(hint) => <span class="font-[440] text-v2-text-text-muted">{hint()}</span>}
+                  </Show>
+                </button>
+              )
             }}
-            items={controller.methods}
-            key={(m) => m?.label ?? m?.type}
-            onSelect={async (selected, index) => {
-              if (!selected) return
-              void controller.auth.select(index)
-            }}
-          >
-            {(i) => (
-              <div class="w-full flex items-center gap-x-2">
-                <div class="w-4 h-2 rounded-[1px] bg-input-base shadow-xs-border-base flex items-center justify-center">
-                  <div class="w-2.5 h-0.5 ml-0 bg-icon-strong-base hidden" data-slot="list-item-extra-icon" />
-                </div>
-                <span>{methodLabel(i)}</span>
-              </div>
-            )}
-          </List>
+          </For>
         </div>
-      </>
+      </div>
     )
   }
 
@@ -626,7 +473,6 @@ function ProviderConnection(props: {
     })
 
     onMount(() => {
-      if (!newLayout()) return
       apiKey?.focus({ preventScroll: true })
     })
 
@@ -646,97 +492,54 @@ function ProviderConnection(props: {
       await controller.auth.connectKey(apiKey)
     }
 
-    if (newLayout())
-      return (
-        <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
-          <Show
-            when={provider().id === "opencode"}
-            fallback={language.t("provider.connect.apiKey.description", { provider: provider().name })}
-          >
-            <div class="flex flex-col gap-5">
-              <div>{language.t("provider.connect.opencodeZen.line1")}</div>
-              <div>{language.t("provider.connect.opencodeZen.line2")}</div>
-              <div>
-                {language.t("provider.connect.opencodeZen.visit.prefix")}
-                <ExternalLink
-                  href="https://opencode.ai/zen"
-                  class="text-v2-text-text-base focus-visible:rounded-xs focus-visible:outline-2 focus-visible:outline-v2-border-border-focus"
-                >
-                  {language.t("provider.connect.opencodeZen.visit.link")}
-                </ExternalLink>
-                {language.t("provider.connect.opencodeZen.visit.suffix")}
-              </div>
-            </div>
-          </Show>
-          <form onSubmit={handleSubmit} class="flex flex-col items-start gap-5 self-stretch">
-            <label class="flex w-full flex-col gap-1 font-[530] leading-4 text-v2-text-text-base">
-              {language.t("provider.connect.apiKey.label", { provider: provider().name })}
-              <TextInputV2
-                ref={apiKey}
-                class="!w-full"
-                name="apiKey"
-                data-input="provider-api-key"
-                placeholder={language.t("provider.connect.apiKey.placeholder")}
-                value={formStore.value}
-                invalid={formStore.error !== undefined}
-                aria-describedby={formStore.error ? errorID : undefined}
-                autocomplete="off"
-                spellcheck={false}
-                onInput={(event) => setFormStore("value", event.currentTarget.value)}
-              />
-            </label>
-            <Show when={formStore.error}>
-              {(error) => (
-                <div id={errorID} role="alert" class="-mt-4 text-xs text-v2-state-fg-danger">
-                  {error()}
-                </div>
-              )}
-            </Show>
-            <ButtonV2 type="submit" variant="contrast" data-action="provider-connect-submit">
-              {language.t("common.continue")}
-            </ButtonV2>
-          </form>
-        </div>
-      )
-
     return (
-      <div class="flex flex-col gap-6">
-        <Switch>
-          <Match when={provider().id === "opencode"}>
-            <div class="flex flex-col gap-4">
-              <div class="text-14-regular text-text-base">{language.t("provider.connect.opencodeZen.line1")}</div>
-              <div class="text-14-regular text-text-base">{language.t("provider.connect.opencodeZen.line2")}</div>
-              <div class="text-14-regular text-text-base">
-                {language.t("provider.connect.opencodeZen.visit.prefix")}
-                <ExternalLink href="https://opencode.ai/zen" tabIndex={-1}>
-                  {language.t("provider.connect.opencodeZen.visit.link")}
-                </ExternalLink>
-                {language.t("provider.connect.opencodeZen.visit.suffix")}
+      <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
+        <Show
+          when={provider().id === "opencode"}
+          fallback={language.t("provider.connect.apiKey.description", { provider: provider().name })}
+        >
+          <div class="flex flex-col gap-5">
+            <div>{language.t("provider.connect.opencodeZen.line1")}</div>
+            <div>{language.t("provider.connect.opencodeZen.line2")}</div>
+            <div>
+              {language.t("provider.connect.opencodeZen.visit.prefix")}
+              <ExternalLink
+                href="https://opencode.ai/zen"
+                class="text-v2-text-text-base focus-visible:rounded-xs focus-visible:outline-2 focus-visible:outline-v2-border-border-focus"
+              >
+                {language.t("provider.connect.opencodeZen.visit.link")}
+              </ExternalLink>
+              {language.t("provider.connect.opencodeZen.visit.suffix")}
+            </div>
+          </div>
+        </Show>
+        <form onSubmit={handleSubmit} class="flex flex-col items-start gap-5 self-stretch">
+          <label class="flex w-full flex-col gap-1 font-[530] leading-4 text-v2-text-text-base">
+            {language.t("provider.connect.apiKey.label", { provider: provider().name })}
+            <TextInputV2
+              ref={apiKey}
+              class="!w-full"
+              name="apiKey"
+              data-input="provider-api-key"
+              placeholder={language.t("provider.connect.apiKey.placeholder")}
+              value={formStore.value}
+              invalid={formStore.error !== undefined}
+              aria-describedby={formStore.error ? errorID : undefined}
+              autocomplete="off"
+              spellcheck={false}
+              onInput={(event) => setFormStore("value", event.currentTarget.value)}
+            />
+          </label>
+          <Show when={formStore.error}>
+            {(error) => (
+              <div id={errorID} role="alert" class="-mt-4 text-xs text-v2-state-fg-danger">
+                {error()}
               </div>
-            </div>
-          </Match>
-          <Match when={true}>
-            <div class="text-14-regular text-text-base">
-              {language.t("provider.connect.apiKey.description", { provider: provider().name })}
-            </div>
-          </Match>
-        </Switch>
-        <form onSubmit={handleSubmit} class="flex flex-col items-start gap-4">
-          <TextField
-            autofocus={!newLayout()}
-            ref={apiKey}
-            type="text"
-            label={language.t("provider.connect.apiKey.label", { provider: provider().name })}
-            placeholder={language.t("provider.connect.apiKey.placeholder")}
-            name="apiKey"
-            value={formStore.value}
-            onChange={(v) => setFormStore("value", v)}
-            validationState={formStore.error ? "invalid" : undefined}
-            error={formStore.error}
-          />
-          <Button class="w-auto" type="submit" size="large" variant="primary">
+            )}
+          </Show>
+          <ButtonV2 type="submit" variant="contrast" data-action="provider-connect-submit">
             {language.t("common.continue")}
-          </Button>
+          </ButtonV2>
         </form>
       </div>
     )
@@ -751,7 +554,6 @@ function ProviderConnection(props: {
     })
 
     onMount(() => {
-      if (!newLayout()) return
       codeInput?.focus({ preventScroll: true })
     })
 
@@ -771,73 +573,41 @@ function ProviderConnection(props: {
       setFormStore("error", await controller.auth.completeCode(code))
     }
 
-    if (newLayout())
-      return (
-        <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
-          <div>
-            {language.t("provider.connect.oauth.code.visit.prefix")}
-            <ExternalLink href={controller.authorization()!.url} class="text-v2-text-text-base">
-              {language.t("provider.connect.oauth.code.visit.link")}
-            </ExternalLink>
-            {language.t("provider.connect.oauth.code.visit.suffix", { provider: provider().name })}
-          </div>
-          <form onSubmit={handleSubmit} class="flex flex-col items-start gap-5 self-stretch">
-            <label class="flex w-full flex-col gap-1 font-[530] leading-4 text-v2-text-text-base">
-              {language.t("provider.connect.oauth.code.label", { method: controller.currentMethod()?.label ?? "" })}
-              <TextInputV2
-                ref={codeInput}
-                class="!w-full"
-                name="code"
-                placeholder={language.t("provider.connect.oauth.code.placeholder")}
-                value={formStore.value}
-                invalid={formStore.error !== undefined}
-                aria-describedby={formStore.error ? errorID : undefined}
-                autocomplete="off"
-                spellcheck={false}
-                onInput={(event) => setFormStore("value", event.currentTarget.value)}
-              />
-            </label>
-            <Show when={formStore.error}>
-              {(error) => (
-                <div id={errorID} role="alert" class="-mt-4 text-xs text-v2-state-fg-danger">
-                  {error()}
-                </div>
-              )}
-            </Show>
-            <ButtonV2 type="submit" variant="contrast">
-              {language.t("common.continue")}
-            </ButtonV2>
-          </form>
-        </div>
-      )
-
     return (
-      <div class="flex flex-col gap-6">
-        <div class="text-14-regular text-text-base">
+      <div class="flex flex-col gap-5 px-3 text-[13px] font-[440] leading-5 tracking-[-0.04px] text-v2-text-text-muted">
+        <div>
           {language.t("provider.connect.oauth.code.visit.prefix")}
-          <ExternalLink href={controller.authorization()!.url}>
+          <ExternalLink href={controller.authorization()!.url} class="text-v2-text-text-base">
             {language.t("provider.connect.oauth.code.visit.link")}
           </ExternalLink>
           {language.t("provider.connect.oauth.code.visit.suffix", { provider: provider().name })}
         </div>
-        <form onSubmit={handleSubmit} class="flex flex-col items-start gap-4">
-          <TextField
-            autofocus={!newLayout()}
-            ref={codeInput}
-            type="text"
-            label={language.t("provider.connect.oauth.code.label", {
-              method: controller.currentMethod()?.label ?? "",
-            })}
-            placeholder={language.t("provider.connect.oauth.code.placeholder")}
-            name="code"
-            value={formStore.value}
-            onChange={(v) => setFormStore("value", v)}
-            validationState={formStore.error ? "invalid" : undefined}
-            error={formStore.error}
-          />
-          <Button class="w-auto" type="submit" size="large" variant="primary">
+        <form onSubmit={handleSubmit} class="flex flex-col items-start gap-5 self-stretch">
+          <label class="flex w-full flex-col gap-1 font-[530] leading-4 text-v2-text-text-base">
+            {language.t("provider.connect.oauth.code.label", { method: controller.currentMethod()?.label ?? "" })}
+            <TextInputV2
+              ref={codeInput}
+              class="!w-full"
+              name="code"
+              placeholder={language.t("provider.connect.oauth.code.placeholder")}
+              value={formStore.value}
+              invalid={formStore.error !== undefined}
+              aria-describedby={formStore.error ? errorID : undefined}
+              autocomplete="off"
+              spellcheck={false}
+              onInput={(event) => setFormStore("value", event.currentTarget.value)}
+            />
+          </label>
+          <Show when={formStore.error}>
+            {(error) => (
+              <div id={errorID} role="alert" class="-mt-4 text-xs text-v2-state-fg-danger">
+                {error()}
+              </div>
+            )}
+          </Show>
+          <ButtonV2 type="submit" variant="contrast">
             {language.t("common.continue")}
-          </Button>
+          </ButtonV2>
         </form>
       </div>
     )
@@ -877,19 +647,10 @@ function ProviderConnection(props: {
   }
 
   return (
-    <div class={newLayout() ? "flex min-h-0 flex-1 flex-col" : "flex flex-col gap-6 px-2.5 pb-3"}>
-      <div class={newLayout() ? "flex h-10 shrink-0 items-start gap-2 px-3" : "flex items-center gap-4 px-2.5"}>
-        <ProviderIcon
-          id={props.provider}
-          class={newLayout() ? "mt-0.5 size-4 shrink-0 text-v2-icon-icon-base" : "size-5 shrink-0 icon-strong-base"}
-        />
-        <div
-          class={
-            newLayout()
-              ? "text-[15px] font-[530] leading-5 tracking-[-0.13px] text-v2-text-text-base"
-              : "text-16-medium text-text-strong"
-          }
-        >
+    <div class="flex min-h-0 flex-1 flex-col">
+      <div class="flex h-10 shrink-0 items-start gap-2 px-3">
+        <ProviderIcon id={props.provider} class="mt-0.5 size-4 shrink-0 text-v2-icon-icon-base" />
+        <div class="text-[15px] font-[530] leading-5 tracking-[-0.13px] text-v2-text-text-base">
           <Switch>
             <Match
               when={props.provider === "anthropic" && controller.currentMethod()?.label?.toLowerCase().includes("max")}
@@ -900,12 +661,8 @@ function ProviderConnection(props: {
           </Switch>
         </div>
       </div>
-      <div class={newLayout() ? "flex min-h-0 flex-1 flex-col" : "flex flex-col gap-6 px-2.5 pb-10"}>
-        <div
-          onKeyDown={handleKey}
-          tabIndex={newLayout() ? undefined : 0}
-          autofocus={!newLayout() && controller.methodIndex() === undefined ? true : undefined}
-        >
+      <div class="flex min-h-0 flex-1 flex-col">
+        <div>
           <Switch>
             <Match when={controller.loading()}>
               <div class="text-14-regular text-text-base">

packages/app/src/components/dialog-custom-provider.tsx

@@ -9,7 +9,7 @@ import { showToast } from "@/utils/toast"
 import { batch, For } from "solid-js"
 import { createStore, produce } from "solid-js/store"
 import { ExternalLink } from "@/components/external-link"
-import { useServerSync } from "@/context/server-sync"
+import { useData } from "@/context/server"
 import { useLanguage } from "@/context/language"
 import { type FormState, headerRow, modelRow, validateCustomProvider } from "./dialog-custom-provider-form"
 
@@ -41,7 +41,7 @@ export function DialogCustomProvider(props: Props) {
 
 export function CustomProviderForm(props: { autofocus?: boolean } = {}) {
   const dialog = useDialog()
-  const serverSync = useServerSync()
+  const data = useData()
   const language = useLanguage()
 
   const [form, setForm] = createStore<FormState>({
@@ -116,8 +116,9 @@ export function CustomProviderForm(props: { autofocus?: boolean } = {}) {
     const output = validateCustomProvider({
       form,
       t: language.t,
-      disabledProviders: serverSync.data.config.disabled_providers ?? [],
-      existingProviderIDs: new Set(serverSync.data.provider.all.keys()),
+      // TODO: Restore disabled-provider validation when V2 exposes config reads.
+      disabledProviders: [],
+      existingProviderIDs: new Set((data.location.provider.list() ?? []).map((provider) => provider.id)),
     })
     batch(() => {
       setForm("err", output.err)

packages/app/src/components/dialog-edit-project-v2.tsx

@@ -11,7 +11,7 @@ import { For, Show, createSignal, startTransition } from "solid-js"
 import { useLanguage } from "@/context/language"
 import { getProjectAvatarVariant, type LocalProject } from "@/context/layout"
 import { ServerConnection } from "@/context/servers"
-import { SDKProvider } from "@/context/sdk"
+import { LocationProvider } from "@/context/location"
 import { displayName, getProjectAvatarSource } from "@/pages/layout/helpers"
 import { createEditProjectModel } from "./edit-project"
 import { ProjectSettingsExtensions } from "./project-settings-extensions"
@@ -22,9 +22,9 @@ import "./dialog-edit-project-v2.css"
 export function DialogEditProjectV2(props: { project: LocalProject; server: ServerConnection.Any }) {
   return (
     <SettingsServerDataScope server={props.server}>
-      <SDKProvider directory={props.project.worktree}>
+      <LocationProvider directory={props.project.worktree}>
         <ProjectSettingsDialog project={props.project} server={props.server} />
-      </SDKProvider>
+      </LocationProvider>
     </SettingsServerDataScope>
   )
 }

packages/app/src/components/dialog-fork.tsx

@@ -1,16 +1,18 @@
 import { Component, createMemo } from "solid-js"
 import { useNavigate, useParams } from "@solidjs/router"
-import { useSync } from "@/context/sync"
-import { useSDK } from "@/context/sdk"
+import { useData } from "@/context/server"
 import { usePrompt } from "@/context/prompt"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
 import { Dialog } from "@opencode-ai/ui/dialog"
 import { List } from "@opencode-ai/ui/list"
 import { showToast } from "@/utils/toast"
-import { extractPromptFromParts } from "@/utils/prompt"
-import type { TextPart as SDKTextPart } from "@/types"
-import { base64Encode } from "@opencode-ai/core/util/encode"
 import { useLanguage } from "@/context/language"
+import { useServerSDK } from "@/context/server-sdk"
+import { base64Encode } from "@opencode-ai/util/encode"
+import { extractPromptComments, extractPromptFromMessage } from "@/utils/prompt"
+import { useWorkspaceLocation } from "@/context/location"
+import { useServer } from "@/context/server"
+import { sessionHref } from "@/utils/session-route"
 
 interface ForkableMessage {
   id: string
@@ -25,29 +27,27 @@ function formatTime(date: Date): string {
 export const DialogFork: Component = () => {
   const params = useParams()
   const navigate = useNavigate()
-  const sync = useSync()
-  const sdk = useSDK()
+  const data = useData()
+  const serverSDK = useServerSDK()
+  const location = useWorkspaceLocation()
   const prompt = usePrompt()
   const dialog = useDialog()
   const language = useLanguage()
+  const server = useServer()
 
   const messages = createMemo((): ForkableMessage[] => {
     const sessionID = params.id
     if (!sessionID) return []
 
-    const msgs = sync().data.message[sessionID] ?? []
+    const msgs = data.session.message.list(sessionID)
     const result: ForkableMessage[] = []
 
     for (const message of msgs) {
-      if (message.role !== "user") continue
-
-      const parts = sync().data.part[message.id] ?? []
-      const textPart = parts.find((x): x is SDKTextPart => x.type === "text" && !x.synthetic && !x.ignored)
-      if (!textPart) continue
+      if (message.type !== "user" || !message.text) continue
 
       result.push({
         id: message.id,
-        text: textPart.text.replace(/\n/g, " ").slice(0, 200),
+        text: message.text.replace(/\n/g, " ").slice(0, 200),
         time: formatTime(new Date(message.time.created)),
       })
     }
@@ -60,20 +60,32 @@ export const DialogFork: Component = () => {
 
     const sessionID = params.id
     if (!sessionID) return
-
-    const parts = sync().data.part[item.id] ?? []
-    const restored = extractPromptFromParts(parts, {
-      directory: sdk().directory,
+    const message = data.session.message.get(sessionID, item.id)
+    if (message?.type !== "user") return
+    const restored = extractPromptFromMessage(message, {
+      directory: location().directory,
       attachmentName: language.t("common.attachment"),
     })
-    const dir = base64Encode(sdk().directory)
+    const dir = base64Encode(location().directory)
 
-    sdk()
-      .api.session.fork({ sessionID, boundary: { type: "before", messageID: item.id } })
+    serverSDK.api.session
+      .fork({ sessionID, boundary: { type: "before", messageID: item.id } })
       .then((forked) => {
+        data.session.remember(forked)
         dialog.close()
-        prompt.set(restored, undefined, { dir, id: forked.id })
-        navigate(`/${dir}/session/${forked.id}`)
+        const target = prompt.capture({ dir, id: forked.id })
+        target.set(restored)
+        target.context.replaceComments(
+          extractPromptComments(message).map((comment) => ({
+            type: "file",
+            path: comment.path,
+            selection: comment.selection,
+            comment: comment.comment,
+            preview: comment.preview,
+            commentOrigin: comment.origin,
+          })),
+        )
+        navigate(sessionHref(server.key, forked.id))
       })
       .catch((err: unknown) => {
         const message = err instanceof Error ? err.message : String(err)

packages/app/src/components/dialog-select-directory-v2.tsx

@@ -29,7 +29,7 @@ import {
 } from "./directory-picker-domain"
 import "./dialog-select-directory-v2.css"
 import { DividerV2 } from "@opencode-ai/ui/v2/divider-v2"
-import { getFilename } from "@opencode-ai/core/util/path"
+import { getFilename } from "@opencode-ai/util/path"
 
 interface DialogSelectDirectoryV2Props {
   title?: string

packages/app/src/components/dialog-select-file.tsx

@@ -3,7 +3,7 @@ import { FileIcon } from "@opencode-ai/ui/file-icon"
 import { Icon } from "@opencode-ai/ui/icon"
 import { Keybind } from "@opencode-ai/ui/keybind"
 import { List } from "@opencode-ai/ui/list"
-import { getDirectory, getFilename } from "@opencode-ai/core/util/path"
+import { getDirectory, getFilename } from "@opencode-ai/util/path"
 import { createMemo, createSignal, lazy, Match, Show, Switch } from "solid-js"
 import { formatKeybind } from "@/context/command"
 import { useServerSDK } from "@/context/server-sdk"

packages/app/src/components/dialog-select-mcp.tsx

@@ -1,5 +1,6 @@
 import { Component, createMemo, Show } from "solid-js"
-import { useSync } from "@/context/sync"
+import { useData } from "@/context/server"
+import { useWorkspaceLocation } from "@/context/location"
 import { Dialog } from "@opencode-ai/ui/dialog"
 import { List } from "@opencode-ai/ui/list"
 import { Switch } from "@opencode-ai/ui/switch"
@@ -14,12 +15,13 @@ const statusLabels = {
 } as const
 
 export const DialogSelectMcp: Component = () => {
-  const sync = useSync()
+  const data = useData()
+  const sdk = useWorkspaceLocation()
   const language = useLanguage()
 
   const items = createMemo(() =>
-    Object.entries(sync().data.mcp ?? {})
-      .map(([name, status]) => ({ name, status: status.status }))
+    (data.location.mcp.server.list({ directory: sdk().directory }) ?? [])
+      .map((server) => ({ name: server.name, status: server.status.status }))
       .sort((a, b) => a.name.localeCompare(b.name)),
   )
 
@@ -47,7 +49,9 @@ export const DialogSelectMcp: Component = () => {
         }}
       >
         {(i) => {
-          const mcpStatus = () => sync().data.mcp[i.name]
+          const mcpStatus = () =>
+            data.location.mcp.server.list({ directory: sdk().directory })?.find((server) => server.name === i.name)
+              ?.status
           const status = () => mcpStatus()?.status
           const statusLabel = () => {
             const key = status() ? statusLabels[status() as keyof typeof statusLabels] : undefined