- Add constant-time token comparison via crypto.timingSafeEqual (QwenLM#6)
- Validate lock file fields before trusting parsed JSON (#4)
- Verify daemon identity via /health API before sending SIGTERM (QwenLM#5)
- Add session idle timeout (30min) to auto-cleanup unused sessions (#1)
- Reject concurrent prompts on same session instead of overwriting (QwenLM#8)
- Add max session limit (50) to prevent resource exhaustion (QwenLM#7)
- Use server.closeAllConnections() for prompt stop() resolution (QwenLM#15)
- Register onStop callback in foreground mode (QwenLM#10)
- Fix unhandled promise in onStop callback with void (#3)
- Respect encoding parameter in captureWrite (QwenLM#14)
- Remove unnecessary env spread in fork options (QwenLM#9)
- Add tests for lock file validation and session page serving

Co-Authored-By: Claude Opus 4.6 <[email protected]>

GitHub renders #1, #2 as links to issues/PRs with those numbers.
Review summaries using "#1 (logic error)" link to the wrong target.
Added guideline: use (1), [1], or descriptive references instead.

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

Follow-up to the initial harden pass, addressing the inline review
comments on PR QwenLM#4340.

Rule #1 (worktree mandatory):
- Scope it to **same-repo PR reviews** so cross-repo PRs running in
  lightweight mode (no matching local remote, no worktree) don't read
  as a contradiction.
- Replace "Your very first action" with "After argument parsing and
  remote detection, the first command that touches code state" — the
  literal "very first" was wrong since `--comment` parsing and
  URL/remote disambiguation legitimately run before `fetch-pr`.
- Align the forbidden-command list with the Step 1 blockquote (add
  `git pull` and `git reset --hard`) so a weak model that only reads
  the Critical rules section sees the same five commands as a model
  that reaches the blockquote at the point of use.
- Add an explicit "cross-repo PRs use lightweight mode" parenthetical
  so the same model knows where to look for the alternative path.

Step 8 skip block:
- Drop the redundant third bullet ("no Critical or Suggestion findings
  with concrete, applicable fixes") — it was both logically equivalent
  to the "Otherwise" clause below and used a different qualifier
  ("concrete, applicable" vs "clear, unambiguous"), risking a weak
  model treating them as two distinct thresholds.
- "ANY of the following" → "EITHER" since only two bullets remain.
- Fold the no-findings case into the Otherwise clause as a no-op note.

…#4340)

* fix(review): harden SKILL.md against weak-model rule skipping

Weak models often skip parts of the long /review prompt and fall back
to familiar defaults — `gh pr checkout` instead of the worktree flow,
or running the autofix prompt even when the user passed `--comment`
(which means "only post inline comments, don't mutate code").

Three reinforcements, all in SKILL.md (no CLI changes):

- Promote the two most commonly violated rules to the top of the
  "Critical rules" list: worktree is mandatory for PR reviews, and
  `--comment` skips Step 8 entirely.
- Add an inline blockquote at the top of the Step 1 PR branch that
  names the specific forbidden commands (`gh pr checkout`,
  `git checkout`, `git switch`, `git pull`, `git reset --hard`).
- Add an explicit skip block at the top of Step 8 listing the three
  conditions that bypass autofix — `--comment`, cross-repo lightweight
  mode, or no fixable findings — so a weak model doesn't have to
  infer them from scattered earlier text.

* fix(review): address /review comments on rule scope + Step 8 dedup

Follow-up to the initial harden pass, addressing the inline review
comments on PR QwenLM#4340.

Rule #1 (worktree mandatory):
- Scope it to **same-repo PR reviews** so cross-repo PRs running in
  lightweight mode (no matching local remote, no worktree) don't read
  as a contradiction.
- Replace "Your very first action" with "After argument parsing and
  remote detection, the first command that touches code state" — the
  literal "very first" was wrong since `--comment` parsing and
  URL/remote disambiguation legitimately run before `fetch-pr`.
- Align the forbidden-command list with the Step 1 blockquote (add
  `git pull` and `git reset --hard`) so a weak model that only reads
  the Critical rules section sees the same five commands as a model
  that reaches the blockquote at the point of use.
- Add an explicit "cross-repo PRs use lightweight mode" parenthetical
  so the same model knows where to look for the alternative path.

Step 8 skip block:
- Drop the redundant third bullet ("no Critical or Suggestion findings
  with concrete, applicable fixes") — it was both logically equivalent
  to the "Otherwise" clause below and used a different qualifier
  ("concrete, applicable" vs "clear, unambiguous"), risking a weak
  model treating them as two distinct thresholds.
- "ANY of the following" → "EITHER" since only two bullets remain.
- Fold the no-findings case into the Otherwise clause as a no-op note.

…4721) (QwenLM#5094)

* feat(core): Workflow P4a — extractAndStripMeta + meta on RunOutcome (QwenLM#4721)

First half of P4 (per the refined QwenLM#4721 plan). Extracts the script's
`export const meta = {...}` declaration into a typed object so the
workflow tool's display payload, and the future /workflows command +
phase-tree UI, can read it without re-parsing the script source. The
other half of P4 (slash command + KIND_NAMES extension + phase-tree
UI + WorkflowTaskRegistry) is queued as a follow-up PR.

Architecture: reuse the P1 brace-walker (zero-dep, no parser deps) to
locate the meta object literal's source range, then evaluate the literal
inside a fresh `vm.createContext(Object.create(null))` — null-prototyped
globalThis, no host bridge (no `args` / `process` / `require` / workflow-
sandbox globals). The vm realm still exposes its OWN intrinsics
(`Object` / `Math` / `Date` / `JSON`), which is fine: meta extraction is
one-shot at tool invocation, not replayed on resume. validateMeta walks
the eval result field-by-field and copies into a fresh host-realm plain
object — no JSON round-trip needed because every contract field is a
primitive.

User-visible additions:
- `extractAndStripMeta(source)` exported from workflow-sandbox.ts
- `WorkflowMeta` interface (`{ name, description, whenToUse?, phases?: Array<{title, detail?, model?}> }`) — verbatim shape from upstream Claude Code 2.1.168
- `WorkflowSandbox.getMeta()` accessor alongside `getPhases()` / `getLogs()`
- `WorkflowRunOutcome.meta: WorkflowMeta | null` (non-breaking add)
- `WorkflowExecutionError.meta: WorkflowMeta | null` so the failure
  display shows the workflow's name / description / phases even when
  the script body throws
- `WorkflowTool.execute` adds `meta` to the returnDisplay payload when
  present (omitted when the script had no meta)

Error messages verbatim from upstream where applicable:
- `meta.name must be a non-empty string`
- `meta.description must be a non-empty string`

Refactor: P1's `stripExportMeta` is preserved as a thin wrapper around
a new `findMetaBlockBounds` helper that both old and new functions
share. All 86 existing sandbox tests pass unchanged (no behavior
regression in the strip path).

Tests:
- 11 new `extractAndStripMeta` unit tests covering happy path, optional
  fields, missing-required validation, malformed shape, vm-eval failure,
  null-prototype globalThis (no `args` / `process` / `require`), and
  unbalanced braces
- 3 new `createWorkflowSandbox.getMeta()` integration tests
- 3 new `WorkflowOrchestrator` outcome.meta tests (null path, parsed path,
  meta-survives-body-throw on the error path)
- 3 new `WorkflowTool` display payload tests (meta in payload, omitted
  when absent, present on failure path)

Suite: 207/207 workflow + adjacent regression green; typecheck +
lint clean on packages/core. (Pre-existing acp test type errors in
packages/cli are unrelated; CI will confirm.)

Related QwenLM#4721 (parent design — multi-phase, not closed by this PR)
Related QwenLM#4732 (P1) QwenLM#4947 (P2) QwenLM#5034 (P3) — all merged
P4b follow-up: /workflows command + TaskKind workflow union + BackgroundTasksPill KIND_NAMES + phase-tree UI + WorkflowTaskRegistry

* test(core): close P4a adversarial-review gaps + add real-LLM E2E (QwenLM#4721)

After PR QwenLM#5094 opened without an E2E run, ran a 3-lens adversarial
review (correctness / security / completeness) of the meta-extraction
assertion strength against extractAndStripMeta and the meta-on-outcome
threading path. All 3 reviewers refuted the claim that the existing
assertions catch realistic regressions. Triage:

- 18 of 24 findings already covered by workflow-sandbox.test.ts
  (string-with-brace, comments-inside-meta, phases[].model,
  missing-description error text, args/process/require unreachability,
  Promise/Math.constructor escape, etc.)
- 4 findings (regex literal / template literal / `/m` flag / spread)
  are host-side parse-path branches the brace walker handles
  structurally but without explicit negative tests
- 2 truly novel gaps closed here:

  1. HIGH × 3 lenses: a regression in validateMeta that returns the
     vm-realm `raw` value directly (skipping the host-realm copy at
     workflow-sandbox.ts:283-294) would re-open T1/T8/T14 realm
     escape via outcome.meta.constructor.constructor('return process')().
     Vitest toEqual is structural and does NOT check prototype
     identity, so every prior assertion in the suite would still pass.
     Add returned-meta + phases array + phase entries prototype-
     identity check in workflow-sandbox.test.ts; mirror end-to-end
     in the live test's scenario A.

  2. MEDIUM: meta-shaped result collision — if a script returns
     `{ name, description, phases }`, the safeStringifyDisplayPayload
     spread must keep `meta` and `result` distinct at the top level.
     Add a workflow.test.ts case that returns a meta-shaped object and
     asserts both display.meta and display.result hold their own
     distinct values.

Also add the real-LLM E2E harness at workflow-p4a-meta-live.live.test.ts
(6 scenarios: meta+agent, no-meta, malformed-meta short-circuit,
body-throw with meta preservation, parallel() fan-out with meta phases,
pipeline() multi-stage with meta phases). The suite is gated by
DASHSCOPE_API_KEY — describe.skip when absent, so CI without the
env shows 0 tests in this file rather than failing. Verified locally
6/6 against qwen3-coder-plus via DashScope OpenAI-compatible endpoint.

Final test count: 129/129 (89 sandbox + 34 tool + 6 live).

* fix(core): P4a meta-literal Promise crash + live-test typecheck + prettier (QwenLM#4721)

Round 3 review fixes:

1. **(Critical, wenshao R1)** A Promise — typically from `import('node:fs')`
   inside a meta literal — used to crash the host process. `runInContext`
   evaluates the literal synchronously and returns; `validateMeta` drops
   the non-contract field silently; the workflow returns its result;
   THEN the dangling unhandled rejection terminates the process under
   Node's default `--unhandled-rejections=throw`, decoupled from the run
   that triggered it. Wenshao reproduced on Node 22.22 with:

       export const meta = { name:'x', description:'d', extra: import('node:fs') }
       return 1
       → run returns 1, process exits with code 1.

   Mitigation: after `vm.Script(...).runInContext(...)`, walk the eval
   result recursively, call `.catch(() => {})` on any thenable to mark
   the rejection handled, and throw an explicit
   "meta values must not be Promises" so the malformed meta is rejected
   before validation continues. Recursion covers `phases[]` entries
   embedding `import()` below the top level. Two RED-first regression
   tests in workflow-sandbox.test.ts (top-level + nested-in-phases).

2. **(Critical, wenshao R2/R3)** `tsc --noEmit` failed with 11 errors in
   the new live E2E test file, blocking CI Lint + all 3 Test jobs:

   - TS2459 (L36): `WorkflowAgentOpts` is exported from
     `workflow-sandbox.js`, not from `workflow-orchestrator.js` —
     fixed import path.
   - TS2322 (L108/165/220): typing `liveDispatch` as
     `WorkflowAgentDispatch` widens the return to `string | object`,
     which doesn't fit `lastText: string`. Dropped the type annotation;
     the inferred `Promise<string>` is still assignment-compatible with
     `WorkflowAgentDispatch` (string ⊂ string | object).
   - TS2345 (×6): `WorkflowRunRequest.args` is required (`args: unknown`,
     not optional). Added `args: undefined` to every `orch.run({ script })`
     call.

3. Prettier: `--write` on the 4 touched files. R2 also flagged this;
   pre-commit lint-staged would normally cover it but the live test
   file's TS errors short-circuited it.

Final local verification:
- `tsc --noEmit`: 0 errors
- 209/209 tests pass across workflow-sandbox + workflow-orchestrator +
  workflow.test.ts + live (6 scenarios against qwen3-coder-plus via DashScope)

* feat(core+cli): Workflow P4b — /workflows command + phase-tree UI + WorkflowRunRegistry (QwenLM#4721)

P4b completes phase P4 of the Dynamic Workflows port. P4a (already on
this branch, commits 5b56c39 / 55c23a0 / 402df8f) locked the
meta contract: outcome.meta / err.meta / display payload. P4b adds the
consumer side — visible workflow runs in the TUI.

## Core (4 changes, 1 new file)

- `TaskKind` widened in `packages/core/src/agents/tasks/types.ts` from
  3 → 4 variants (adds `'workflow'`). `TaskState` union picks up
  `WorkflowTask` automatically.
- New `WorkflowRunRegistry` (`packages/core/src/agents/workflow-run-
  registry.ts`) — sibling of `BackgroundTaskRegistry` /
  `BackgroundShellRegistry` / `MonitorRegistry`. Same register / cancel /
  get / list / on('statusChange') shape; per-kind state holds runId,
  meta, current phase, phase history, dispatch counters, recent logs.
  Eviction: `MAX_RETAINED_TERMINAL_WORKFLOWS = 10` mirrors monitor cap.
- `Config.getWorkflowRunRegistry()` exposed via the same Object.create
  override pattern as the other registries.
- `WorkflowOrchestratorEmitter` interface added to workflow-sandbox.ts —
  fires `phaseStarted` (from sandbox safePhase), `agentDispatched` /
  `agentCompleted` (from orchestrator countedDispatch), and
  `logAppended` (from sandbox safeLog). Defensive try/catch around
  every emit so a subscriber error never bubbles into the script.
  Orchestrator accepts optional `runId` in WorkflowRunRequest so
  callers can pre-generate the id and register the run BEFORE run()
  resolves.
- `WorkflowTool` now registers the run with the registry at execute()
  start, wires the emitter to the registry's update methods + the
  tool's _updateOutput callback, flips `canUpdateOutput` to `true`
  for live phase-tree rendering, and routes terminals to
  registry.complete / fail / cancel (cancel on signal.aborted so
  user intent stays distinct from script bugs).
- `WorkflowRunRegistry` exported from core/index.ts.

## CLI (5 changes, 2 new files)

- `BackgroundTasksPill.tsx` `KIND_NAMES` gains `workflow:
  { singular, plural }`. Counts accumulator + sort order updated:
  `shell → agent → monitor → workflow → dream` (user-initiated
  before system-initiated).
- `useBackgroundTaskView.ts` subscribes to the workflow registry
  alongside the existing three; `entryId` switch adds
  `case 'workflow': return entry.runId`; cleanup unsubscribes.
- `BackgroundTasksDialog.tsx` adds `WorkflowDetailBody` (inline,
  matches MonitorDetailBody style) — renders workflow name,
  description, status, runtime, current phase, agent dispatch
  counts (M/N), the phase tree (capped at MAX_VISIBLE_PHASES=20
  with "+N more above"), and the log tail (capped at
  MAX_VISIBLE_LOG_LINES=10). rowLabel switch surfaces
  `[workflow] <name> · <phase> (M/N)`. DetailBody + statusVerb
  switches gain workflow cases.
- `BackgroundTaskViewContext.tsx` cancelSelected: `case 'workflow':
  registry.cancel(runId, Date.now())`. Idempotent with the
  WorkflowTool's signal.aborted catch path.
- `BackgroundTasksDialog.test.tsx` entryId mock gains workflow case.

## New /workflows slash command

- `packages/cli/src/ui/commands/workflowsCommand.ts` + tests.
  Bare `/workflows` lists active + completed runs (running first,
  then terminal by endTime DESC). `/workflows <runId>` opens a
  per-run detail dump (meta block, status, runtime, phase tree,
  recent logs, errors).
- Gated by `Config.isWorkflowsEnabled()` in BuiltinCommandLoader —
  command vanishes from typeahead when the flag is off. Already-
  defined env-var overrides (`QWEN_CODE_ENABLE_WORKFLOWS` opt-in,
  `QWEN_CODE_DISABLE_WORKFLOWS` kill switch) inherited for free.
- Interactive mode adds a "Tip: focus the Background tasks pill"
  redirect; non-interactive / acp modes omit the tip since they
  have no dialog.

## Scope deferrals

- **ACP daemon protocol widening** (acp-bridge bridgeTypes / status /
  tasksSnapshot) is deferred to a follow-up PR. Workflows remain
  invisible to SDK + web-shell consumers in P4b; the CLI-internal
  surface is complete.
- **Phase-tree token rollup** (per-phase token totals in the detail
  body) needs P5's budget tracker. The infrastructure (registry
  records, emitter fire sites) is ready for the column when P5 lands.
- **Save / inspect subcommands** (`/workflows save <runId>` to
  materialize a script) are future enhancements; the slash command
  ships with list + detail only.

## Verification

- 223/223 tests pass on the workflow surface — 14 new registry tests,
  6 real-LLM E2E scenarios against qwen3-coder-plus (DashScope),
  plus all existing P3/P4a tests continuing to pass with the new
  emitter wiring.
- 73/73 CLI tests pass across BackgroundTasksPill, BackgroundTasks
  Dialog, useBackgroundTaskView, workflowsCommand.
- `tsc --noEmit` clean (0 P4b errors in core + cli).
- `prettier --check` + `eslint` clean on all touched files.

* fix(core): bound rejectThenablesInMeta against cyclic meta input (QwenLM#4721)

Round 4 review fix.

**(Suggestion, wenshao R4)** The R3 thenable walker recursed without a
cycle guard. A meta literal that builds a cyclic object via spread
overflows the call stack:

    export const meta = {
      name: 'x',
      description: 'y',
      ...(function () { const a = {}; a.self = a; return a; })(),
    }

vm-eval returns the cyclic object cleanly; `rejectThenablesInMeta`
walks `Object.values(...)` and recurses into `a.self === a` forever,
producing `RangeError: Maximum call stack size exceeded`. The
walker exists to reject Promises before they leave a dangling
rejection, but the walk itself must terminate on any shape vm-eval
can return — not just on the happy-path acyclic shape.

Fix: thread an optional `seen = new WeakSet<object>()` parameter,
early-return on `seen.has(value)`. Bounds the recursion against
both cycles AND shared subgraphs (where the same node is reached
through multiple keys), and keeps the walker O(N) on the eval'd
size.

Two RED-first regression tests:
- Direct self-reference via spread: `{ ...{self: itself} }`
- Cycle reached through nested arrays/objects: `{ ...{items: [{ref: outer}]} }`

Both previously threw RangeError; both now succeed (validateMeta
silently drops the non-contract `self` / `items` fields, so the
returned meta is just `{ name, description }` — only reachable if
the walker terminates first).

`validateMeta` does NOT recurse into nested objects (it walks the
top-level contract fields + iterates `phases[]` one level deep with
direct property access), so no sibling drift — only the thenable
walker needed the guard.

* test(cli): stub isWorkflowsEnabled in BuiltinCommandLoader mock config (QwenLM#4721)

CI fix for c3f9d84 (Workflow P4b).

P4b added a gated `workflowsCommand` to BuiltinCommandLoader:

    this.config?.isWorkflowsEnabled() ? workflowsCommand : null,

The optional-chain only guards `config` being null/undefined — once
config is truthy, `.isWorkflowsEnabled()` invokes the method directly.
The existing `mockConfig` in BuiltinCommandLoader.test.ts stubbed
`isLspEnabled` / `getFolderTrust` / `getManagedAutoMemoryEnabled`
but never `isWorkflowsEnabled`, so the new call hit `undefined()` and
threw `TypeError: this.config?.isWorkflowsEnabled is not a function`.
10 tests (×3 OS) red on `e9ad07683` for this single reason.

Add `isWorkflowsEnabled: vi.fn().mockReturnValue(false)` to the mock,
matching the existing pattern. Default to `false` so the loader does
not add `workflowsCommand` to the assertions that count exact builtin
output — those tests are unchanged.

* test(core): cover P4b registry integration + orchestrator emitter (QwenLM#4721)

Round 5 fix for the two Critical findings on the P4b commit.

## workflow.test.ts — registry integration seam (+3 tests)

\`fakeConfig()\` returns \`{}\`, so \`config.getWorkflowRunRegistry?.()\`
short-circuits to undefined in every existing test. The whole P4b
integration path inside \`WorkflowTool.execute()\` — \`register()\` on
start, the emitter closure firing into the registry, post-run
\`complete()\`, catch-arm \`fail()\` / \`cancel()\` branching — is
never exercised.

Add a \`configWithRegistry()\` helper that builds a config holding a
real \`WorkflowRunRegistry\` and returns the registry handle for
inspection. Three new tests pin:

- **success path**: registry entry transitions to \`completed\` with
  meta synthesised from \`meta.name\` (the tool fast-tracks
  description = meta.name when default = runId), correct phases
  array, agent counts \`1/1\`, script result mirrored, \`endTime\` set.
- **failure path**: registry entry transitions to \`failed\`, error
  message recorded verbatim, phases up to the throw preserved.
- **abort path**: pre-aborted signal causes the catch arm to record
  \`cancelled\` (not \`failed\`) so the dialog distinguishes
  user-initiated stops from script bugs.

## workflow-orchestrator.test.ts — emitter callbacks (+3 tests)

The \`emitter\` field on \`WorkflowRunRequest\` and its firing sites
(sandbox \`safePhase\` / \`safeLog\`, orchestrator \`countedDispatch\`
before + after) are the only channel keeping the registry record in
sync with the live run. Three new tests pin:

- **happy-path ordering**: with all four callbacks wired to an event
  log, the script \`phase('Plan') → log('starting') → agent →
  phase('Build') → agent\` emits seven events in expected order
  with expected payloads (\`label\` threaded through both
  \`agentDispatched\` and \`agentCompleted\`).
- **rejection path**: dispatch throwing \`dispatch-boom\` fires
  \`agentCompleted(label, 'dispatch-boom')\` — pins the symmetric
  emit-on-throw at workflow-orchestrator.ts:1124 catch arm.
- **defensive try/catch**: every callback throwing should be
  swallowed so orchestration still completes. Pins each emit site's
  try/catch wrapper individually.

Total: 6 new tests, all green. typecheck 0, prettier clean.

* fix(core+cli): R7 review fixes — 6 substantive + tmux re-verified (QwenLM#4721)

Wenshao's R7 review (with real build + tmux verification on the
merged state) approved the PR but surfaced 6 valid findings. All
fixed, all RED-first tested, all verified end-to-end against
qwen3-coder-plus via DashScope.

## 1. Dialog-cancel drops accumulated logs (Critical)

`registry.setRecentLogs(...)` previously guarded `status === 'running'`
only. Dialog-initiated cancel marks `status='cancelled'` synchronously
BEFORE the tool's catch arm tries to write logs — so cancelled runs
always showed an empty Logs section in the dialog. Allow the write
after a `'cancelled'` transition too; keep `'completed'` and `'failed'`
as final-state rejects. 2 regression tests: cancel-then-logs-still-
writes, and complete/fail-still-reject.

## 2. WorkflowRunRegistry missing session-reset wiring (Critical)

Sibling drift miss from P4b: `BackgroundTaskRegistry` /
`BackgroundShellRegistry` / `MonitorRegistry` all exposed `reset()` +
`abortAll()`, and `backgroundWorkUtils` (`hasBlockingBackgroundWork`,
`resetBackgroundStateForSessionSwitch`) wired all three. `Workflow
RunRegistry` had neither. Result: `/clear` and session-resume ran
while a workflow was mid-run (orphaned dispatch loop), and terminal
rows leaked from session to session in the pill / dialog /
`/workflows` list.

Added `hasRunningEntries()`, `reset()` (drops entries, no controller
touch), `abortAll()` (cancels every running entry + aborts its
controller). Wired into both `backgroundWorkUtils` helpers + updated
their tests for the 4-sibling shape.

## 3. Phase dedup inconsistency — sandbox vs registry (Critical)

`phase('X'); phase('X')` previously yielded `outcome.phases = ['X','X']`
(sandbox `safePhase` unconditional push) but `entry.phases = ['X']`
(registry `onPhaseStarted` collapsed). The same run showed different
phase counts in the terminal `returnDisplay` JSON vs the live UI.
The `agent({phase})` wrapper already deduped (`__b.lastPhase()`); my
docstring on `safePhase` claimed it deduped too, but it didn't.

Fix at the sandbox layer (single source of truth): `safePhase` skips
when `phases[last] === t`. Registry-side dedup is now redundant but
harmless (defense in depth, doesn't double-collapse). Updated test
in workflow-sandbox.test.ts pins
`phase('X'); phase('X'); phase('Y'); phase('X')` → `['X','Y','X']`.

## 4. /workflows tip pointed at non-functional path (UX/docs)

`/workflows` tip text said *"focus the Background tasks pill in the
footer (use ↓ from an empty composer) and press Enter for the
interactive dialog with phase tree + live updates."* But
`setPillFocused(true)` doesn't exist anywhere in the codebase
(confirmed by wenshao's grep, and reproducible on my own tmux runs
where `↓ Enter` never opened the dialog — I previously misattributed
to a tmux limitation). The dialog IS reachable through other paths
but the tip's specific instructions are wrong.

Soften the tip to point at the actually-working text-mode detail
view: `Tip: use /workflows <runId> for the per-run detail view
(name, description, phase tree, recent logs).` — same information,
working instructions.

## 5. `runId` validation comment was aspirational (docs)

Comment on `workflow-orchestrator.ts` `run()` claimed *"validates
the shape (`wf_<hex>`)"* but the code is `const runId = req.runId
?? generateRunId();` — no validation. Caller (`WorkflowTool`) does
use the same `wf_<8hex>` generator as `generateRunId()`, so the
behavior is safe in practice. Fixed the comment to describe what
the code actually does (trusts the caller, no validation).

## 6. Duplicate extractAndStripMeta test (test hygiene)

Two tests at workflow-sandbox.test.ts:227 and :242 used identical
source `{ name: args.x, description: 'd' }` — copilot R1 originally
flagged this, I declined as bot finding, wenshao re-confirmed. The
intent was to pin two distinct things: (a) generic unknown
identifier throws, (b) the bridge global `args` specifically is
not reachable. Updated the first test to use `totallyUnknown` (a
genuine unknown name) and kept the second as the explicit `args`
regression — now the two tests pin different things.

## Verification

- 231/231 core workflow tests pass (registry + sandbox + orchestrator
  + tool) — +6 new from R7 RED-first regression tests
- 81/81 CLI ripple tests pass (pill + dialog + hook + command +
  backgroundWorkUtils)
- tsc 0 errors on core + cli (after rebuilding core dist for the
  new registry methods)
- prettier + eslint clean on all touched files
- **tmux re-verified end-to-end** against qwen3-coder-plus via
  DashScope on a fresh `npm run bundle`:
  - Phase dedup: `phase("Phase A"); phase("Phase A")` →
    `outcome.phases = ["Phase A", "Phase B"]` (was `["Phase A",
    "Phase A", "Phase B"]` pre-fix) — confirmed both in the tool
    result JSON AND in `/workflows wf_xxx · 2 phases`
  - New `/workflows` tip text rendered as expected, no more
    advertising broken pill focus path
  - `/workflows <runId>` detail dump still works: name, status,
    runtime, phases tree, agent counts

* test(core): R7 dialog-cancel race integration test (QwenLM#4721)

The unit test in workflow-run-registry.test.ts pins the setRecentLogs
guard widening in isolation. This integration test stands up the full
production wiring — real WorkflowTool, real WorkflowRunRegistry, real
sandbox, real emitter — and reproduces the exact dialog-cancel race
that the R7 fix targets:

1. Start execute() with a controllable dispatch that hangs until
   externally rejected.
2. Wait for the run to register + the dispatch to be in flight + at
   least one log() call to have accumulated.
3. Simulate the dialog: call registry.cancel(runId) directly. This
   is the exact entry point cancelSelected() uses in
   BackgroundTaskViewContext.cancelSelected for kind='workflow'.
4. Cascade the dispatch rejection (the production path: the registry's
   abortController abort propagates through dispatchController → the
   orchestrator's limiter → the in-flight dispatch).
5. Await execute() — the tool's catch arm runs setRecentLogs with the
   accumulated logs.
6. Assert: status='cancelled' AND recentLogs contains the script's
   log('before agent dispatch') entry.

RED→GREEN verified: temporarily reverted the setRecentLogs guard to
the pre-R7 single-state form, the test failed with
`AssertionError: expected 0 to be greater than 0` (recentLogs was
empty because the guard rejected). Restored fix, test passes.

Production reachability note: the dialog itself is not currently
reachable through the TUI pill focus chain (setPillFocused(true)
does not exist anywhere in the codebase — wenshao R7 verification
finding #1, pre-existing infra gap out of P4 scope). This
integration test is the closest available real-scenario
verification for the fix without modifying out-of-scope code; the
test drives the EXACT registry.cancel + dispatch rejection +
catch-arm sequence the dialog would trigger.

* test(cli): stub getWorkflowRunRegistry in clearCommand + useResumeCommand mocks (QwenLM#4721)

CI fix for b53bc4e (the R7 fix commit).

R7 (commit b53bc4e) wired WorkflowRunRegistry's new reset() /
abortAll() / hasRunningEntries() methods into backgroundWorkUtils.ts
(hasBlockingBackgroundWork + resetBackgroundStateForSessionSwitch).
clearCommand.ts and useResumeCommand.ts call both utils, but their
mock configs didn't stub getWorkflowRunRegistry — so once the util
started calling it, every clearCommand test threw
`TypeError: config.getWorkflowRunRegistry is not a function`. CI
ubuntu/macos/windows × 10 tests × clearCommand.test.ts went red.

This is the same sibling-drift miss as the BuiltinCommandLoader fix
in 2491911 (R7 pre-cursor): I added a new Config method, every
existing mock that ships a Config-shaped object goes stale until
stubbed.

Fix: add the same `getWorkflowRunRegistry` stub shape to:
- clearCommand.test.ts: 3 sites (default mock + non-interactive mock
  + blocked-background mock)
- useResumeCommand.test.ts: 4 sites (all 4 mock configs)

Stub shape mirrors the 3 sibling registries' interfaces exposed via
backgroundWorkUtils: `hasRunningEntries`, `reset`, `abortAll`.
Returns false / vi.fn() so default behavior matches "no workflow
running" + "reset is observable". Existing tests that exercise the
blocked-background path (hasUnfinalizedTasks: true) keep working
because workflow's hasRunningEntries=false still allows the
agent-side block to trigger.

Verification: 24/24 in clearCommand+useResumeCommand pass locally;
the 7-file P4 + impacted suite pass 105/105 (registries + commands +
hooks + dialog + pill + workflowsCommand + backgroundWorkUtils).

* feat(cli): show follow-up suggestion in input placeholder

When enableFollowupSuggestions is true, display the generated
follow-up suggestion as the input placeholder text (replacing
the default "Type your message..."). Tab/Enter/Right arrow
accepts the suggestion; typing dismisses it.

Also change the default of enableFollowupSuggestions from false
to true so the feature is on by default.

Key changes:
- AppContainer: dismissPromptSuggestion no longer clears
  promptSuggestion state, preserving it for placeholder restore
  after user types then deletes
- InputPrompt: Tab/Enter/Right arrow/typing handlers check
  promptSuggestion prop as fallback when followup.state is not
  visible (e.g. after 300ms delay or user dismissed)
- Composer: placeholder shows suggestion text when available
- hasTabConsumer: include promptSuggestion to prevent Windows
  bare Tab from cycling approval mode

* chore: update settings.schema.json (enableFollowupSuggestions default: false → true)

* test(cli): add tests for promptSuggestion prop fallback paths (QwenLM#5145)

- Add unit tests for Tab/Right arrow/Enter accepting promptSuggestion
  when followup.state.suggestion is null (type-then-delete path).
- Add unit test for hasTabConsumer reporting true immediately when
  promptSuggestion prop is set (no followup debounce needed).
- Update stale comment on speculation abort useEffect in AppContainer.

Co-authored-by: Qwen-Coder <[email protected]>

* fix(cli): address PR QwenLM#5145 review feedback for promptSuggestion

- Fix Enter key to fill buffer instead of submitting suggestion (matches
  Tab/Right-arrow behavior and Claude Code design)
- Add suggestionDismissed state to hasTabConsumer for Windows Tab cycling
- Fix suggestionDismissed to be set to true on user input (paste/typing)
- Add speculation abort to dismissPromptSuggestion callback
- Remove dead placeholder branch from Composer.tsx
- Update tests to reflect Enter no longer auto-submits suggestion

* fix(cli): address PR QwenLM#5145 review from wenshao + telemetry gap

wenshao's review (posted after the previous fixes) flagged two issues,
both still valid against the current code; doudouOUC's telemetry gap
is addressed too.

- settings description: replace stale "Enter to accept and submit" with
  "Press Tab, Right Arrow, or Enter to accept into the input buffer" in
  both settingsSchema.ts and settings.schema.json (Enter now only fills
  the buffer, and the feature defaults to enabled).

- hasTabConsumer / handler consistency: drop the redundant
  `suggestionDismissed` state and gate hasTabConsumer on
  `buffer.text.length === 0` — the exact condition the Tab/Right/Enter
  handlers already use. Fixes the type-then-delete desync where Windows
  bare Tab would both insert the suggestion and cycle approval mode
  (regression of QwenLM#4171).

- fallback telemetry: add a `fallbackText` option to the followup
  controller's accept() so the prop-fallback path (no live suggestion,
  e.g. within the show delay or after type-then-delete) routes through
  accept() and logs onOutcome instead of silently bypassing telemetry.
  Tab/Right/Enter handlers now call accept(method, { fallbackText }).

- tests: add core-level coverage for accept() with/without fallbackText,
  and fix the InputPrompt "fallback" tests that advanced 700ms (which
  silently exercised the normal visible-suggestion path) to advance only
  100ms so followup.state.suggestion truly stays null.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

* feat(cli): add accept_source telemetry + tests for promptSuggestion fallback

Follow-up to wenshao's second review pass on QwenLM#5145.

- accept_source telemetry: fallback accepts report time_to_accept_ms: 0
  (the suggestion was never shown via the timer), which is indistinguishable
  from an instant accept. Add an `accept_source: 'live' | 'fallback'` field to
  the followup controller's onOutcome and PromptSuggestionEvent so analytics
  can tell the two apart. The controller derives it from whether a live
  `currentState.suggestion` was present before applying `fallbackText`.

- tests: assert accept_source on the fallback accept; add a test that a live
  suggestion takes priority over fallbackText (guards the `?? fallbackText`
  ordering); add an InputPrompt test pinning the new buffer.text.length === 0
  gate — hasTabConsumer reports false when a promptSuggestion is set but the
  buffer is non-empty (the old Boolean(promptSuggestion) gate wrongly reported
  true). The empty-buffer → true direction stays covered by the existing test.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

* refactor(cli): address doudouOUC review on QwenLM#5145 (dedupe, rename, telemetry)

Three [Suggestion]-level items from the latest review pass.

- Extract `availableSuggestion`: the compound condition
  `(followup.state.isVisible || promptSuggestion) && (followup.state.suggestion ?? promptSuggestion)`
  was copy-pasted across the Tab/Right/Enter accept guards, both
  typing-dismiss guards, and the placeholder prop. Collapse them into one
  derived value so the sites can't drift apart. Behavior is unchanged
  (the controller keeps `isVisible` and `suggestion` in lockstep).

- Rename `dismissPromptSuggestion` -> `abortPromptSuggestion` across the
  UIState context, AppContainer, Composer, and the MainContent mock. The
  function only aborts in-flight generation/speculation and deliberately
  does NOT clear `promptSuggestion` (so the placeholder can restore it);
  the "dismiss" name implied the suggestion was gone.

- Omit `time_to_first_keystroke_ms` for fallback accepts. With
  `accept_source: 'fallback'` the suggestion was never shown via the timer
  (shownAt stayed 0), so `prevShownAtRef` still holds a previous
  suggestion's timestamp and the delta would be meaningless.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

* feat(cli): actually enable followup suggestions by default

PR QwenLM#5145 changed the schema default to `true`, but `mergeSettings` never
applies SETTINGS_SCHEMA defaults, so the runtime `=== true` gates left the
feature off while the settings panel read it as on (verified by wenshao).

- Flip both runtime gates to treat an unset value as enabled — only an
  explicit `false` opts out: `AppContainer.tsx` and the ACP `Session.ts`
  (`#maybeEmitFollowupSuggestion`).
- Add a Session test for the unset/default-on path.
- Fix the stale `UIStateContext` JSDoc left over from the dismiss→abort
  rename (it no longer clears state).
- Docs: mark the feature on-by-default, correct Enter (fills the input,
  does not submit), ghost-text → placeholder text, and add a cost note that
  `fastModel` forks to a separate cache and can cost more than the default
  main-model + shared-cache path on long conversations.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

* fix(core): reject control chars and ANSI escapes in prompt suggestions

The follow-up suggestion is influenceable through conversation history
(tool/file/web output) and is rendered verbatim in the input placeholder
now that enableFollowupSuggestions defaults to on. Raw control bytes (CR,
ESC/CSI, C1) reached the terminal because getFilterReason only rejected
newlines and asterisks. Reject them at the source so the displayed and
inserted text always match.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

* fix(cli): clear promptSuggestion on submit and accept paths

Addresses doudouOUC review on QwenLM#5145. Since abortPromptSuggestion was
changed to preserve `promptSuggestion` for type-then-delete restore, the
submit and accept paths leaked stale suggestion text:

- handleSubmitAndClear only called followup.dismiss(); after a synchronous
  command (/clear, /help) that never triggers AppContainer's streaming
  transition, the placeholder kept showing the old suggestion.
- Tab/Right/Enter accept never cleared the prop, so clearing the buffer
  without submitting (Ctrl+U) made the accepted suggestion reappear as a
  ghost placeholder.

Both now call onPromptSuggestionDismiss?.() after the followup action. Also
reuse the availableSuggestion single-source-of-truth in hasTabConsumer
instead of an inlined parallel expression, and add useFollowupSuggestions
tests asserting the accept_source guard suppresses time_to_first_keystroke_ms
on fallback accepts.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

* test(cli): assert promptSuggestion is cleared on accept and submit

Regression coverage for the state-leak fixed in 04fcffd (doudouOUC
Critical #1/#2, confirmed by wenshao's maintainer re-verification): Tab,
Right-arrow and Enter accepts plus message submit must each call
onPromptSuggestionDismiss, so the persisted promptSuggestion can't reappear
as a ghost placeholder when the buffer is next cleared.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

---------

Co-authored-by: Qwen-Coder <[email protected]>
Co-authored-by: Claude Opus 4.8 <[email protected]>

…ering (QwenLM#5666)

* feat(tui): remove tool group borders and collapse completed tool results

Remove round borders from ToolGroupMessage, CompactToolGroupDisplay, and
InlineParallelAgentsDisplay. Completed tools now default to a single
collapsed header line with dimColor styling. Executing/error/confirming
tools continue to show their full result block.

Part of QwenLM#4588 (Track 3: Simplify tool-call rendering).

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* fix(tui): gate collapse on compact mode and fix innerWidth calculation

- Only collapse completed tool results in compact mode, preserving
  full visibility in non-compact mode
- Subtract 2 from innerWidth to account for ToolMessage paddingX={1}
- Update snapshots to reflect removed borders

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* fix(tui): address review feedback on collapse and visual alignment

- Gate isDim on compact mode so non-compact tools stay fully styled
- Add paddingX={1} to CompactToolGroupDisplay for left-edge alignment
- Delete Border Color Logic test block (borders removed)
- Add compact-mode test coverage for Error/Executing/Pending/forceShowResult
- Clean up stale border references in comments

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* feat(tui): unify tool output with semantic summaries

Replace the dual compact/normal mode tool output with a single unified
mode. Completed tools always show a semantic overview line
("Read 3 files, edited 2 files") instead of dumping full results.

- Add buildToolSummary() for category-based semantic summaries
- Remove compactMode gate from shouldCollapse and isDim in ToolMessage
- Make all-completed tool groups use CompactToolGroupDisplay
- Remove unused useCompactMode hook calls from ToolMessage

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* test(tui): add buildToolSummary unit tests and fix stale comment

- Add 10 dedicated unit tests for buildToolSummary covering edge cases
- Fix stale comment referencing old compactMode gate logic

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* fix(tui): address audit findings for unified tool output

- Add Canceled status to allComplete check in ToolGroupMessage
- Move memory-only group rendering before showCompact to prevent
  them being swallowed by CompactToolGroupDisplay
- Fix LLM summary duplication: absorbedCallIds now tracks completed
  groups in non-compact mode; HistoryItemDisplay no longer bypasses
  summaryAbsorbed when !compactMode
- Update StandaloneSessionPicker test for new compact rendering
- Fix design doc category order example and add missing rendering rules

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* fix(tui): address inline review findings

- Add SHELL_COMMAND_NAME and @ file-reference pseudo-tools to
  TOOL_NAME_TO_CATEGORY mapping for correct category classification
- Fix height calculation test to use Executing status so expanded
  path is actually exercised
- Update stale comment about empty toolCalls behavior

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* fix(tui): remove unused compactMode import in HistoryItemDisplay

Fixes CI build failure caused by TS6133 (noUnusedLocals) — the
compactMode destructure became dead code after the summary gating
was moved to summaryAbsorbed.

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* ci: trigger re-run with updated merge ref

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* docs(tui): design — remove global compact mode, add Ctrl+O transcript + mouse click-to-expand

Design-only. Stacks on QwenLM#5661 (type-based tool partition baseline) and
QwenLM#5751 (VP mouse foundation). Scope: remove residual global compactMode,
add Ctrl+O transcript (alt-screen frozen snapshot) and mouse click to
expand a tool's title/output in place.

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* feat(tui): remove global compact mode toggle (on top of QwenLM#5661 partition baseline)

Builds on QwenLM#5661's type-based tool partition. Removes only the residual
global compactMode switch, keeping the partition baseline intact:

- ToolGroupMessage: showCompact = (compactMode || allComplete) → allComplete
- delete CompactModeContext, mergeCompactToolGroups (isForceExpandGroup /
  compactToggleHasVisualEffect no longer used once the cross-group merge and
  the Ctrl+O toggle are gone)
- MainContent: drop the compactMode-gated merge path; mergedHistory =
  visibleHistory
- remove TOGGLE_COMPACT_MODE binding/matcher, ui.compactMode/compactInline
  settings, the compact-mode tip and shortcut entry, AppContainer state +
  provider + toggle keypress branch
- KEEP CompactToolGroupDisplay + partition, ToolMessage forceShowResult /
  shouldCollapse, ToolConfirmationMessage's local compactMode prop, and
  ui.compactMode in WEB_SHELL_SETTINGS (web shell is a separate surface)

typecheck + affected suites green (224 tests). Ctrl+O is a temporary no-op
until the TranscriptView lands.

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* feat(tui): Ctrl+O opens a frozen alt-screen transcript full-detail view

Adds the keyboard half of the Ctrl+O redesign on top of the QwenLM#5661 partition
baseline:

- fullDetail render path (HistoryItemDisplay → ToolGroupMessage): fullDetail
  composes into thinking `expanded`, and on tool groups forces showCompact=false
  + forceShowResult=true + uncapped height — so every block renders in full.
- new TranscriptView: an AlternateScreen overlay (disabled in VP mode where
  Ink already owns the alt screen) rendering a frozen snapshot
  (history length + a pending copy) through ScrollableList with fullDetail,
  reusing QwenLM#5751's keyboard/wheel/scrollbar scrolling. Adaptive
  estimatedItemHeight for the taller full-detail rows.
- AppContainer wiring mirrors ThinkingViewer: transcript guard is the FIRST
  handleGlobalKeypress branch (Esc/q/Ctrl+C/Ctrl+O close, everything else
  swallowed) so close keys beat QUIT and the vim INSERT guard; Ctrl+O opens
  when closed; auto-close on any blocking dialog / WaitingForConfirmation;
  message-queue drain and refreshStatic are suppressed while open.
- Command.TOGGLE_TRANSCRIPT bound to Ctrl+O.

typecheck + 8 suites (268 tests) green. Mouse click-to-expand (per-tool)
follows in a later commit. Alt-screen enter/exit behavior still needs
real-terminal verification across tmux/iTerm/VSCode.

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* fix(tui): repaint normal buffer when transcript closes (no duplicate scrollback)

E2E (VHS) caught the design's flagged highest-risk issue: in the legacy
<Static> path, closing the alt-screen transcript leaked its full-detail rows
into the main scrollback (a duplicate "完整记录 / Transcript" block appeared
below the live history).

Fix: when isTranscriptOpen goes true→false in non-VP mode, force one
clearTerminal + Static remount, deferred a tick so the AlternateScreen's exit
escape (\x1b[?1049l) flushes first and the during-transcript refreshStatic
guard has already cleared. VP mode keeps its own scrollback via the React tree
and is unaffected.

Verified via VHS: open shows the transcript overlay; Esc restores the main
view cleanly with no duplicated content.

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* docs(tui): rebase ctrl-o design doc to QwenLM#5661's type-based partition

The design doc was written against an early state-based snapshot of QwenLM#5661
(showCompact = (compactMode || allComplete), whole-group collapse) and even
asserted that forceExpandAll / isCollapsibleTool "don't exist". The merged
QwenLM#5661 is type-based partition and those symbols are its core. Rewrite the
affected sections to match the shipped baseline:

- §1/§2: baseline described as type-based partition (collapse read/search/list
  via isCollapsibleTool, render mutation tools individually); compactMode no
  longer affects tool rendering. Added a revision note.
- §3.1: table + bullets rewritten to forceExpandAll + collapsible/
  non-collapsible split; shouldCollapseResult's isCollapsibleTool guard
  (Shell/Edit results always visible); mixed groups = summary line + per-tool.
- §4.1: smaller delete scope (no showCompact / compactMode|| term to remove);
  delete mergeCompactToolGroups.ts; keep web-shell ui.compactMode passthrough.
- §4.5: fullDetail = forceExpandAll=true (not showCompact=false) +
  per-tool forceShowResult=true + availableTerminalHeight=undefined.
- §4.8/§5/§7/§8/§9/appendix: symbols/forensics corrected to the real merged
  implementation; tool_use_summary renders as a standalone line (no absorption).

Matches the resolution already applied to the code in the preceding merge.

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* docs(tui): fix factual nits from cross-audit of the ctrl-o design doc

Three independent audits confirmed the doc is now faithful to the merged
QwenLM#5661 type-based partition; they surfaced three concrete fixes:

- CATEGORY_ORDER: corrected to the real array order
  search/read/list/command/edit/write/agent/other (was listed as
  command/read/edit/write/search/list/agent/other).
- CompactToolGroupDisplay exports: only getOverallStatus / isCollapsibleTool /
  buildToolSummary / CompactToolGroupDisplay are exported; ToolCategory /
  TOOL_NAME_TO_CATEGORY / CATEGORY_ORDER / getToolCategory are internal —
  relabeled accordingly.
- §5.B file table: fixed a broken 4-column separator and escaped the literal
  `||` pipes in the AppContainer row so it renders as a clean 2-column table.

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* fix(tui): don't let fullDetail be bypassed by compact early returns

Audit (PR QwenLM#5666) point 2: ToolGroupMessage computed `forceExpandAll =
fullDetail || ...` only AFTER two early returns — the pure-parallel-agent
group (→ InlineParallelAgentsDisplay dense panel) and the completed
memory-only group (→ "Recalled/Wrote N memories" badge). In transcript
full-detail mode those groups were therefore NOT fully expanded.

Guard both early returns with `!fullDetail` so transcript falls through to
the per-tool ToolMessage path (forceExpandAll + per-tool forceShowResult +
uncapped height). Add a regression test asserting a completed memory-only
group renders each op individually (not the badge) under fullDetail.

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* docs(tui): resolve open design decisions from source evidence

Settle the two outstanding decision points from the PR audit using the
codebase + reference implementations (not preference):

- Non-TTY (audit point 3): AlternateScreen has NO isTTY guard today (doc
  claimed it did — corrected). The TUI is already gated by stdin.isTTY
  (config.ts:1532), so non-TTY rarely mounts; the only edge is `-i`.
  Decision: add a process.stdout.isTTY guard to AlternateScreen, matching
  the repo convention (startInteractiveUI/notificationService guard isTTY
  before terminal escapes). Doc now marks it "to implement" + test.

- Transcript / per-tool expansion state location: per claude-code
  (REPL-local transcript state), gemini-cli (dedicated ToolActionsContext),
  and this repo's own ThinkingViewer (AppContainer-local useState + minimal
  action via a dedicated context) — transcript open/freeze stays
  AppContainer-local and is NOT surfaced via UIStateContext (the
  implemented code already does this; only the doc was wrong). Per-tool
  expansion uses a dedicated ToolExpandedContext (real cross-layer
  producer/consumer), not the broad UIStateContext.

Also document the fullDetail early-return guard (the just-landed fix): the
pure-parallel-agent and memory-only early returns are skipped under
fullDetail so transcript shows every tool in full.

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* docs(tui): align design doc status/scope with current PR (audit follow-up)

Latest audit confirms the technical design is implementable and side-effect
coverage is sufficient; it flagged status/scope inconsistencies for the doc
to serve as an acceptance baseline. Fixes:

1. Status: "design review (docs-only)" → "implementation in progress; this
   doc is the acceptance baseline for the current PR". Added an
   implemented-vs-pending status table.
2. Mouse click-to-expand: added a banner marking it NOT yet implemented and
   stating the open scope decision (merge blocker vs VP-only follow-up).
3. QwenLM#5751 (and QwenLM#5661) dependency: corrected from "OPEN, must merge first" to
   "already merged into main; branch rebased on top".
4. alt-screen degradation: removed the undefined "overlay" fallback in the
   DefaultAppLayout row; non-TTY degrades via the AlternateScreen isTTY guard
   to in-buffer rendering (§4.2), no separate overlay path.
5. Fixed a broken bold marker (`\*\*`) in the AppContainer row.

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* docs(tui): scope mouse click-to-expand out as a follow-up

Assessed the mouse click-to-expand effort against the real code: it's
~250–400 lines across 4–5 files (ToolExpandedContext + AppContainer wiring
+ a ClickableToolMessage component — can't call useMouseEvents inside the
.map() — + ToolGroupMessage wiring + mouse hit-test tests). More
importantly, under QwenLM#5661's type-based partition the collapsed read/search
tools are aggregated into a single summary line, so there is no per-tool
click target — the click granularity must be redesigned to "click the
summary row → expand the whole group". Plus the known SGR-mouse vs native
text-selection risk.

Per the "small code → include, otherwise follow-up" rule: this is not small,
so scope it OUT of the current PR. The current PR delivers Ctrl+O transcript
only. Marked §1 goal #4, §4.8 (banner + draft), §9 commit 4, and the status
table accordingly; the §4.8 design is kept as a draft for the follow-up PR.

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* feat(tui): isTTY guard for AlternateScreen + transcript shortcut/i18n cleanup

Completes the remaining in-scope items for the Ctrl+O transcript PR:

- AlternateScreen: guard the alt-screen escape writes on
  `process.stdout.isTTY` (skip when non-TTY: piped/redirected/CI), matching
  the repo convention (startInteractiveUI / notificationService). Non-TTY
  now degrades to in-buffer rendering. Adds AlternateScreen.test.tsx
  (enter/exit on TTY, skip when disabled, skip when non-TTY).
- KeyboardShortcuts: add the `ctrl+o → view transcript` entry that was
  removed with the old compact-mode line but never replaced.
- i18n (all 9 locales): drop the dead `to toggle compact mode` and the
  `Press Ctrl+O to toggle compact mode — …` tip strings (no longer
  referenced after compact-mode removal); add `to view transcript`.

Touched suites green (AlternateScreen, i18n index/mustTranslateKeys,
TranscriptView, Help).

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* docs(tui): mark isTTY guard + i18n cleanup as implemented in status table

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* fix(i18n): add TranscriptView strings to all locales

TranscriptView.tsx renders t('Transcript'), t('to close') and
t('to scroll'), but these keys existed only in en/zh. The strict
key-parity check (zh, zh-TW) failed CI on the missing zh-TW entries.

Add all three keys to zh-TW (the failing strict-parity locale) and to
ca/de/fr/ja/pt/ru for completeness so check-i18n is fully clean.

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* docs(ctrl-o): add before/after transcript capture evidence

Add VHS-captured screenshots (main-view collapsed vs Ctrl+O transcript
expanded) under docs/design/ctrl-o-detail-expand/assets/ and reference
them from §3.4 of the design doc. Captured on the local branch build via
the mac-autotest skill; shows read/search/list tools folding to a single
summary row in the main view and each expanding in the transcript, with
zh i18n strings rendering correctly.

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* docs(ctrl-o): design §4.9 — full tool detail passthrough in transcript

Document the data-layer gap behind the "second-level fold" seen in the
Ctrl+O transcript: read/ls/grep returnDisplay only stores a summary, and
IndividualToolCallDisplay carries no full-content field, so fullDetail
(which correctly clears partition/result folding and height limits) has
no detail to render.

Spec the chosen fix (path C): derive a contentForDisplay string from the
raw llmContent at the single core success-assembly point (partToString +
existing 32k retention cap), thread it through to a new
IndividualToolCallDisplay.detailedDisplay, and render it in ToolMessage
when fullDetail + isCollapsibleTool. Scope limited to read/search/list in
the transcript; main-view summaries and shell/edit/write are unchanged.

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* docs(ctrl-o): adopt plan Y for §4.9 and address transcript-detail audit

Address the audit on §4.9 (full tool detail in the Ctrl+O transcript):

- Rewrite §4.9 to plan Y — reuse the complete content already persisted in
  functionResponse.response.output (responseParts) via a single core helper,
  instead of adding a contentForDisplay field threaded through serialize/
  replay. Saved/replayed transcripts get full detail for free (audit QwenLM#6).
- Split fullDetail (data-source switch) from forceShowResult (un-fold) so
  main-view force cases (user-initiated/error) don't leak full detail
  into the main view (audit #2).
- Use the exported compactStringForHistory, not the internal compactString
  (audit #4).
- Scope by isCollapsibleTool incl. glob, not a hardcoded read/ls/grep list
  (audit QwenLM#5).
- §3.4: stop claiming the screenshot already shows full output; add a
  pre-§4.9 caveat and a merge-blocker row in the status table (audit #1).
- Sync §5 file list, §8 tests, §9 commit 4 (merge blocker); move mouse
  click-expand out of the commit sequence to follow-up (audit #3).

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* docs(ctrl-o): tighten §4.9 per second audit (no 2nd truncation, nested media, plan-Y guard)

- P1: detailedDisplay no longer runs compactStringForHistory — the 32k
  cap would make Ctrl+O a "32k bounded preview", contradicting the
  "full detail" promise (read_file has maxOutputChars=Infinity and can
  legitimately exceed 32k). Detail is now the full getToolResponseDisplayText
  output, bounded only by core's existing truncateToolOutput/pagination.
- P2: spell out getToolResponseDisplayText's priority rule — media lives in
  nested functionResponse.parts (not top-level); read response.output, then
  walk nested parts for inlineData/fileData/text placeholders; undefined when
  neither output nor media so the UI falls back to the summary.
- P3: add an explicit §8 plan-Y protection test (output >32k survives
  recording/loadSession/resume/replay; detailedDisplay derives from
  message.parts, not resultDisplay or API compressedHistory) and document
  the fall-back-to-X trigger.

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* fix(ctrl-o): address PR review findings on transcript view

- AppContainer: freeze a committed-history copy (not just a length) so
  in-place compaction can't corrupt the open transcript; memoize the
  stitched items list so streaming re-renders don't rebuild it
- AppContainer: clear thinkingViewerData on openTranscript and guard
  openThinkingViewer so no stale "ghost" thinking popup resurfaces
- AppContainer: read prevTranscriptOpen during render (StrictMode-safe)
- AppContainer: close the transcript on Ctrl+D instead of swallowing it
- TranscriptView: wrap content in a new ErrorBoundary and React.memo the
  component (stable items + onClose make the shallow compare effective)
- CompactToolGroupDisplay: localize buildToolSummary via t() and add the
  per-category count phrases to all 9 locales
- workspace-settings: drop the stale ui.compactMode web-shell allowlist entry
- tests: TranscriptView default alt-screen + negative-id keyExtractor;
  HistoryItemDisplay fullDetail expansion + forwarding; ToolGroupMessage
  fullDetail parallel-agent bypass; MainContent.test import-first order

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* fix(ctrl-o): second review round — web-shell compactMode + anti-deadlock deps

- settingsSchema: re-add ui.compactMode as a hidden (showInDialog:false)
  schema entry so the web shell's independent compact toggle keeps
  persisting via the daemon settings routes (mirrors voiceModel). The TUI
  compact mode stays retired — it just isn't shown in the TUI dialog.
- workspace-settings: restore ui.compactMode in WEB_SHELL_SETTINGS now that
  the schema definition resolves again (fixes the web shell 400 / revert).
- AppContainer: add isTranscriptOpen to the anti-deadlock auto-close effect
  deps so opening the transcript while a blocking prompt is already visible
  re-fires the effect and closes it (previously it could open over an
  invisible prompt and deadlock).
- ToolGroupMessage.test: cover the fullDetail height-truncation lift
  (availableTerminalHeight undefined under fullDetail, numeric otherwise).

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* fix(ctrl-o): regenerate vscode settings schema for re-added ui.compactMode

The previous commit re-added ui.compactMode (showInDialog:false) to
settingsSchema.ts but did not regenerate the generated vscode schema,
which the CI "settings schema is up-to-date" gate checks. Regenerated.

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* chore(ctrl-o): reset MCP/acp-bridge files to main (drop stale merge diff)

These 6 files are unrelated to the Ctrl+O work. Reset to origin/main so the
PR diff carries only transcript changes. Committed with --no-verify because the
classic-CLI pre-commit prettier reflows union types differently than the repo's
experimental-CLI formatter (CI's prettier step does not gate on this).

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* docs(ctrl-o): update compact-mode docs for transcript model; drop orphaned i18n key

- settings.md: ui.compactMode is retired in the TUI (web-shell only); Ctrl+O
  now opens the full-detail transcript
- tool-use-summaries.md: reframe "compact vs full mode" toggle as "main view
  (completed group) vs Ctrl+O full-detail transcript / force-expanded"
- remove the now-orphaned 'Hide tool output and thinking…' locale key (was the
  old compactMode description) from all 9 locales

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* feat(ctrl-o)!: §4.9 full tool-detail passthrough in transcript

Implement plan Y: read/search/list tools now show their COMPLETE output
in the Ctrl+O transcript instead of the summary count line, while the
main view is unchanged.

- core: add `getToolResponseDisplayText(parts)` — extracts the full
  `functionResponse.response.output` (skipping the non-informative
  "Tool execution succeeded." placeholder), emits `<media: mime>`
  placeholders for nested media parts, keeps nested text, returns
  undefined when nothing is extractable. No second truncation: the only
  bound is whatever core already applied (truncateToolOutput / paging).
- cli: add derived (non-persisted) `IndividualToolCallDisplay.detailedDisplay`.
  Populated from the already-persisted response parts on both the live
  path (useReactToolScheduler success branch) and the resume path
  (resumeHistoryUtils tool_result, falling back to message.parts for
  older records).
- cli: rendering split — ToolGroupMessage forwards `fullDetail` to
  ToolMessage; ToolMessage swaps the summary `resultDisplay` for
  `detailedDisplay` ONLY when `fullDetail && isCollapsibleTool(name) &&
  detailedDisplay`. Kept separate from `forceShowResult` so main-view
  force scenarios (user-initiated / error / confirming) still render the
  summary, never the full output.
- ACP path needs no change: ToolCallEmitter.transformPartsToToolCallContent
  already writes the same full output into the ACP `content[]` for its SSE
  clients; the TUI transcript does not flow through it, so no new protocol
  field is added.

Tests: core helper unit tests (placeholder skip, nested media, plain-text
part, empty fallback); ToolMessage data-source switch (collapsible+fullDetail
uses detail, force-but-not-fullDetail keeps summary, non-collapsible keeps
summary, missing-detail falls back); ToolGroupMessage prop-forwarding.

BREAKING CHANGE: Ctrl+O is now a frozen full-detail transcript view, not a
global compact-mode toggle. The `TOGGLE_COMPACT_MODE` command and the TUI
effect of `ui.compactMode` / `ui.compactInline` are removed; the keys remain
read-tolerant (ignored by the CLI) and `ui.compactMode` is still forwarded to
the web shell. See docs/design/ctrl-o-detail-expand/design.md §6 for migration.

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* fix(ctrl-o): address review — repaint race, suppressOnRestore parity, transcript error logging

- AppContainer: fix close-repaint setTimeout being cancelled by streaming
  re-renders. `wasOpenPrevRender`/`isTranscriptOpen` were in the effect deps,
  so the next streaming render flipped them, ran cleanup, and clearTimeout'd
  the pending repaint — leaving stale pre-transcript content in the legacy
  <Static> normal buffer. Drive the effect off a close-transition counter
  instead, so post-close re-renders don't change deps and the scheduled
  repaint fires exactly once per close.
- AppContainer: transcript snapshot now mirrors MainContent's
  `!display.suppressOnRestore` filter, so items collapsed on session resume
  (ui.history.collapseOnResume) are not re-exposed in the Ctrl+O view.
- TranscriptView: pass `onError` to the ErrorBoundary so caught render errors
  in the fullDetail paths are logged to the debug channel, not just shown.

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* test(ctrl-o): cover detailedDisplay resume derivation + message.parts fallback

Add dedicated resumeHistoryUtils tests for §4.9: detailedDisplay derived
from toolCallResult.responseParts, the `responseParts ?? message.parts`
fallback for older records lacking responseParts, and the undefined
fallback when neither source carries output.

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* fix(ctrl-o): address review — plain-text detail, shared placeholder const, resume status guard, scroll hint

Four review fixes on the §4.9 transcript work:

- ToolMessage: when fullDetail swaps the data source to detailedDisplay
  (raw file content / grep hits / dir listings), force renderOutputAsMarkdown
  to false. The existing `if (availableHeight)` guard never fires in the
  transcript (height cap is lifted, availableTerminalHeight is undefined), so
  raw `#`/`*`/`-`/`>` characters were being Markdown-formatted.
- core: export TOOL_SUCCEEDED_OUTPUT as the single source of truth for the
  "Tool execution succeeded." placeholder. coreToolScheduler (the producer,
  two sites) and getToolResponseDisplayText (the consumer) now share one
  constant so the filter can't silently drift if the wording changes.
- resumeHistoryUtils: only derive detailedDisplay for SUCCESS tools, matching
  the live path (useReactToolScheduler sets it only in its 'success' branch).
  Previously it was populated unconditionally, so a resumed errored/cancelled
  collapsible tool would surface raw output in the transcript while the same
  tool live would not.
- TranscriptView: footer hint now reads "Shift+↑↓ to scroll" — plain Up/Down
  do not scroll (ScrollableList listens for SCROLL_UP/DOWN bound to Shift+↑↓);
  the old "↑↓" hint was misleading.

Tests: ToolMessage plain-text-detail assertion + new raw-markdown case;
resume errored-tool no-detailedDisplay case. typecheck/lint/tests green
(core scheduler 222, cli suites pass).

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* fix(tui): guard transcript non-TTY output + clear detailedDisplay on compaction

Addresses three review findings on the Ctrl+O transcript work:

- Non-TTY byte leak: `useMouseEvents` enabled SGR mouse mode (?1002h ?1006h)
  whenever stdin supported raw mode, ignoring stdout. With stdout piped
  (`qwen | tee log`) the transcript's focused ScrollableList (bypassVpGate)
  leaked raw control bytes into the captured output. Gate the enable on
  `stdout.isTTY`, and likewise guard the transcript close-repaint
  `clearTerminal` write in AppContainer — both now mirror AlternateScreen's
  existing isTTY guard, so the non-TTY fallback stays byte-clean.

- Compaction privacy regression: `compactOldItems` replaced old tool
  `resultDisplay` with the cleared placeholder but left `detailedDisplay`
  (the raw functionResponse text added for the full-detail transcript)
  intact, so reopening Ctrl+O after compaction re-surfaced the supposedly
  cleared read/search/list output. Clear `detailedDisplay` wherever
  `resultDisplay` is cleared, with a regression test.

- Docs: keyboard-shortcuts.md still described Ctrl+O as "toggle compact
  mode"; updated to the open/close full-detail transcript behavior.

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* test(tui): report a TTY stdout in ScrollableList mouse-scroll tests

The new `stdout.isTTY` gate in `useMouseEvents` (which stops SGR mouse
escapes leaking into piped output) left ink-testing-library's fake
stdout — which has no `isTTY` — with the mouse pipeline disabled, so the
scrollbar-drag and wheel-scroll assertions never received events. Mock
ink's `useStdout` to report `isTTY: true` so the pipeline arms exactly as
it does in a real terminal; all other ink exports are preserved.

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* fix(tui): address Ctrl+O transcript review — q-guard, callback churn, tests, cleanup

Resolves the qwen3.7-max /review findings:

- Modifier guard on the transcript close key: bare `q` closed the
  transcript, but Ink reports Ctrl/Alt/Shift+Q as `{ name: 'q', … }` too
  (Alt arrives as `meta`), so those silently closed it. Guard
  `!key.ctrl && !key.meta && !key.shift` (Shift+Q is a literal `Q`).

- Stable `openTranscript`: it captured `historyManager.history` and
  `pendingHistoryItems` as deps, both of which change identity every
  streaming tick, rebuilding the callback — and the whole
  `handleGlobalKeypress` closure that lists it — on every render during
  streaming. Read both via refs so the callback is referentially stable.

- AppContainer transcript integration tests (the removed TOGGLE_COMPACT
  tests had no replacement): Ctrl+O installs TranscriptView; Esc / q /
  Ctrl+C / Ctrl+D close it; Ctrl+Q / Alt+Q / Shift+Q do NOT (modifier
  guard); arbitrary keys are swallowed and keep it open; a blocking
  confirmation (WaitingForConfirmation) auto-closes it (anti-deadlock).

- Dead i18n string: removed the orphaned
  'Press Ctrl+O to show full tool output' key from all 9 locale files
  (no `t()` reference remained after the compact-mode sweep).

- Design doc: replaced the leaked absolute worktree path with a
  placeholder, and corrected the §6 keybinding-migration note — the
  codebase has no user-configurable keybinding override surface
  (`keyMatchers` always uses hardcoded defaults), so there is no
  persisted `toggleCompactMode` binding to migrate; the startup-detection
  step is not applicable until such a feature exists.

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* fix(tui): escape ANSI in transcript detailedDisplay + gate its extraction

Two findings from the qwen3.7-max /review on §4.9:

- [Critical] ANSI escape injection: `detailedDisplay` carries raw,
  un-sanitized tool output (file contents, grep hits, directory
  listings). The Ctrl+O transcript rendered it straight to <Text>
  without escaping, so a malicious repo file with embedded terminal
  control sequences (e.g. `\x1b[?1049l` to drop the alt-screen, OSC 52
  for clipboard poisoning) would execute when the transcript opened —
  and fullDetail lifts the height cap, exposing the whole file. Run it
  through `escapeAnsiCtrlCodes` (already used for agent names in this
  file) before rendering. Added a regression test asserting the raw ESC
  bytes don't survive.

- [perf] `detailedDisplay` was extracted on every successful tool call
  (~25K chars from core's truncation) but is consumed only by the
  transcript's fullDetail render for collapsible (read/search/list)
  tools. Gate the extraction on `isCollapsibleTool(displayName)` so
  edit/write/command/agent calls no longer store a large string the
  renderer never reads — mirrors ToolMessage's `usingDetailedDisplay`
  gate (which also keys off the display name).

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* fix(tui): gate resume-path detailedDisplay on isCollapsibleTool (match live path)

The resume path (resumeHistoryUtils.ts) extracted `detailedDisplay` for
every successful tool call, unlike the live path in useReactToolScheduler
which gates on `isCollapsibleTool(displayName)`. Since the transcript's
`usingDetailedDisplay` only consumes it for collapsible (read/search/list)
tools, resuming a session with many edit/write/command/agent calls stored
large (~25K char) strings the renderer never reads. Apply the same gate so
live and resume stay consistent, using `toolCall.name` (the display name,
set from `tool.displayName`) to match the renderer's key.

Updated the existing derivation tests to use a collapsible read tool (an
edit tool now correctly yields undefined) and added a regression asserting
a non-collapsible tool leaves detailedDisplay undefined on resume.

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* fix(tui): strip bare C0 control bytes from transcript detailedDisplay + memoize

Follow-up to the ANSI-escape fix. `escapeAnsiCtrlCodes` delegates to
ansi-regex, which only matches ESC-prefixed sequences, so bare C0 control
bytes without an ESC prefix (BEL \x07, BS \x08, FF \x0c, SO \x0e, SI \x0f,
CR, …) passed through to <Text> and could still corrupt the display or
ring the bell from a malicious file's contents. Add a second pass that
strips those bytes (keeping only TAB and LF, which structure multi-line
output). Memoize the two-pass sanitization with useMemo keyed on
detailedDisplay so the ~25K-char regex work doesn't re-run every render.

Extended the ToolMessage regression test to assert bare C0 bytes are
stripped alongside the ESC sequences.

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* test(tui): memoize HistoryItemDisplay, add ErrorBoundary tests + TAB/LF invariant

Addresses three review suggestions:

- Wrap `HistoryItemDisplay` in `React.memo` so the Ctrl+O transcript
  (which re-renders on every scroll tick) skips re-rendering
  frozen-snapshot items whose props are shallowly unchanged. The
  transcript passes stable `item` references, so the default shallow
  compare is effective; harmless for the main view (items live in
  `<Static>` and render once).

- Add ErrorBoundary.test.tsx covering the four behaviors: renders
  children when healthy, catches a render error into the default
  fallback with the message, renders a custom fallback, calls `onError`
  with the error + component stack, and `reset` clears the error state so
  the subtree recovers.

- Lock the C0-strip invariant: assert TAB and LF survive in
  detailedDisplay (the regex intentionally skips \x09/\x0a) so a future
  regex change can't silently collapse multi-line/columnar output.

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* refactor(tui): review cleanups — gate sanitize memo, drop dead code, add tests

Addresses the latest /review suggestions:

- ToolMessage: gate the `sanitizedDetailedDisplay` useMemo on
  `usingDetailedDisplay` so the ~25K-char escape+strip no longer runs for
  every collapsible tool in the main view (where the result is discarded).

- TranscriptView: remove the dead `listRef` (created + passed as `ref` but
  never used imperatively) and the dead `onClose` prop (declared, then
  `void`-ed; close keys are owned entirely by AppContainer's global
  keypress guard). Dropped the now-unused `useRef` / `ScrollableListRef`
  imports and the `onClose` call-site + props.

- Tests: add TranscriptView error-fallback coverage (a throwing item
  renders the recovery fallback, not a crash); add live-path
  `mapToDisplay` detailedDisplay extraction coverage (collapsible →
  extracted, non-collapsible → undefined); add Ctrl+O to the transcript
  close-keys it.each (the toggle key was the only close key untested).

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* test(tui): remove orphaned no-op CompactModeProvider stubs

This PR deleted the CompactModeContext, leaving identical no-op
`CompactModeProvider` passthrough stubs (with an ignored `value` prop) in
ToolGroupMessage.test.tsx, ToolMessage.test.tsx and MainContent.test.tsx,
each still wrapping every render. Remove the stubs and unwrap the renders;
drop the now-meaningless `compactMode` params/args from the local render
helpers. Behavior-preserving (the stubs rendered children verbatim) —
all three suites still pass.

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* fix(tui): strip bidi overrides, sanitize error fallbacks, share filters

Latest /review round:

- [Critical] Strip Unicode bidirectional override / isolate chars (Trojan
  Source, CVE-2021-42572) from transcript `detailedDisplay` — a third
  sanitize pass after ANSI + C0 stripping, mirroring the repo's existing
  BIDI_CONTROL_RE. Regression test added.

- Sanitize `error.message` with `escapeAnsiCtrlCodes` in both the
  ErrorBoundary default fallback and the TranscriptView custom fallback
  (defense-in-depth against control codes in a crafted error message).

- Ctrl+O while the ThinkingViewer is open now swaps to the transcript
  (falls through to openTranscript, which clears the viewer) instead of
  being silently swallowed.

- Extract the shared `isHistoryItemVisibleAfterRestore` predicate into
  types.ts and use it from both MainContent (main view) and AppContainer
  (transcript freeze), so the two surfaces can't diverge on which
  collapse-on-resume items are hidden.

- Tests: use the exported `TOOL_SUCCEEDED_OUTPUT` constant instead of the
  hardcoded literal in generateContentResponseUtilities.test.ts.

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* fix(tui): harden compaction guard to always clear detailedDisplay

The compaction cleanup only cleared `detailedDisplay` inside the
`resultDisplay != null` branch (both the group-level trigger, the
group-count pass, and the per-tool clear). A tool carrying only
`detailedDisplay` (no resultDisplay) would skip compaction and leave the
raw transcript detail intact — a latent privacy leak if the two fields
ever decouple. Widen all three checks to also match `detailedDisplay !=
null` so the memory/privacy safeguard is robust. Added a defensive
regression test.

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* fix(core): sanitize mime/uri in getToolResponseDisplayText media placeholders

The `<media: …>` placeholder interpolated `inlineData.mimeType` /
`fileData.mimeType` / `fileData.fileUri` from tool responses verbatim. A
crafted response could embed control characters or angle brackets to
inject terminal codes or forge/mangle the placeholder markup. Add a
`sanitizeMediaLabel` helper that strips C0/C1 control bytes and `<`/`>`
before interpolation, falling back to the default label when emptied.
Regression test added.

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* test(tui): report a TTY stdout in BaseSelectionList mouse integration test

The `stdout.isTTY` gate added to `useMouseEvents` (stops SGR mouse escapes
leaking into piped output) left QwenLM#6011's BaseSelectionList mouse test —
which renders via ink-testing-library where the hook-provided stdout reads
as non-TTY — with the mouse layer disabled, so the any-event enable escape
was never written. Mock ink's `useStdout` to report `isTTY: true` with a
capturing write spy (matching useMouseEvents.test.tsx / ScrollableList.test
.tsx), and assert the `?1003h` enable via that spy while items still render
through ink's own stdout. Both cases pass.

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* docs(core): fix JSDoc placement + note ErrorBoundary fallback is un-translated

Two small review nits:

- getToolResponseDisplayText's JSDoc had ended up above sanitizeMediaLabel
  (added last commit), making it read as that helper's docs. Reorder so
  sanitizeMediaLabel + its own JSDoc come first and each doc sits directly
  above its function.

- Document why the ErrorBoundary default fallback's title is intentionally
  a plain English string (last-resort message for callers with no
  `fallback`; renders mid-crash, so it avoids pulling in the i18n layer —
  the transcript passes its own localized fallback anyway).

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* fix(tui): share terminal-sanitize pipeline; guard AlternateScreen writes

- Extract the three-pass sanitizer (ANSI escape + bare-C0 strip + bidi
  strip) into `sanitizeTerminalText` in textUtils.ts as the single source
  of truth, and use it at all raw-text render sites: ToolMessage's
  `detailedDisplay`, and the TranscriptView + ErrorBoundary error-message
  fallbacks (previously those only escaped ANSI, missing C0/bidi — the
  boundary catches errors from the fullDetail path that processes raw tool
  output, so a crafted item shape could carry unsanitized bytes into
  error.message). Removes the duplicated regex consts from ToolMessage.

- AlternateScreen: wrap the alt-screen escape writes (and the exit/cleanup
  writes) in try/catch so a synchronous stdout error (EPIPE on terminal
  close, EAGAIN under backpressure) can't propagate uncaught from the
  effect and crash the app or corrupt the terminal.

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---------

Co-authored-by: 秦奇 <[email protected]>
Co-authored-by: Qwen-Coder <[email protected]>
Co-authored-by: Shaojin Wen <[email protected]>