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Author SHA1 Message Date
Shaojin Wen
ef29700bce
fix(ui): trim background task results and show newest first (#4094) (#4125)
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* fix(ui): trim background task results and show newest first (#4094)

Two related improvements to the background task pill and dialog:

1. Trim outdated terminal task results.
   `BackgroundTaskRegistry` and `BackgroundShellRegistry` now cap
   retained terminal entries at 32 each (mirroring `MonitorRegistry`'s
   existing `MAX_RETAINED_TERMINAL_MONITORS` pattern). Running, paused,
   and cancelled-but-not-yet-notified entries are never evicted —
   pruning a not-yet-notified entry would break the SDK contract that
   every `register` pairs with exactly one terminal `task-notification`.

2. Show newest tasks at the top of the dialog.
   `useBackgroundTaskView` now sorts entries by `startTime` descending
   so the dialog opens with the cursor on the most recently launched
   task. `LiveAgentPanel` reverses internally back to ASC for its own
   visual layout (newest row sits closest to the composer).

* perf(shell-registry): batch abortAll prune + statusChange into one pass

abortAll() previously delegated to cancel() per entry, so each running
shell triggered its own pruneTerminalEntries() and statusChange wakeup.
On shutdown / `/clear` with N running shells the only subscriber
(useBackgroundTaskView) re-pulled getAll() N times for what is logically
a single batch transition.

Settle each entry inline via the new private settleAsCancelled() helper,
then fire prune + statusChange exactly once after the loop. The split
keeps the running-status guard at the public-API boundary so callers
can't accidentally re-settle a terminal entry.

* fix(ui): two-bucket sort so running tasks outrank fresh terminals

The earlier startTime DESC sort surfaced the newest LAUNCH but let an
older long-running / paused entry get pushed below a batch of newer
terminal entries — the user opening the dialog to check on the running
work would find it buried under stale completed rows.

Split the merge into two buckets:
  - active (running + paused): sorted by startTime DESC so the most
    recent launch sits at the very top of the dialog.
  - terminal (completed / failed / cancelled): sorted by endTime DESC
    so the most recently FINISHED entry leads the terminal section
    (matches "what changed while I wasn't looking" intuition; a long
    task that just settled outranks an old quick task that finished
    hours ago).

Pin the new behavior with two tests covering active-above-terminal
and the endTime-vs-startTime distinction inside the terminal bucket.

* fix: add missing outputFile and isBackgrounded to retention cap tests

The merge brought in required fields on AgentTaskRegistration that the
retention-cap test helpers were not supplying.

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-05-17 09:13:24 +08:00
qqqys
07165a095c
Add stop hook blocking cap (#4208)
* feat(core): add stop hook blocking cap

* fix(core): tighten stop hook cap behavior

* fix(cli): show goal judge details

* fix(core): bound stop hook blocking cap

* fix(core): surface subagent stop cap warnings

* fix(core): clean up stop hook cap loop

* test(core): cover stop hook cap integrations

* test(core): strengthen stop hook cap coverage
2026-05-17 06:52:56 +08:00
易良
ba77ddd81b
fix(lsp): expose status and startup diagnostics (#3649)
* feat(lsp): add /lsp slash command to show server status

Implements the /lsp command that displays the status of all configured
LSP servers. Previously this was documented in the FAQ but never
implemented, leaving users with no way to check if their language
servers started successfully.

Changes:
- Add LspServerStatusInfo interface to lsp/types.ts
- Add getServerStatus() to LspClient and NativeLspClient
- Expose getServerHandles() from NativeLspService
- Create lspCommand.ts with status table output
- Register /lsp in BuiltinCommandLoader (only when LSP is enabled)

The command shows: server name, command, languages, and status
(NOT_STARTED / IN_PROGRESS / READY / FAILED + error message).

* fix(lsp): expose status and startup diagnostics

* fix(lsp): harden status command diagnostics

* fix(lsp): add stderr error listener and harden initialization error handling

- Add stderr 'error' event listener in LspConnectionFactory to prevent
  unhandled stream errors from crashing the process
- Wrap setLspInitializationError calls in try-catch in config.ts to guard
  against post-initialization state changes that would throw
2026-05-17 01:42:28 +08:00
jinye
54fd5c50f0
feat(telemetry): add detailed sensitive span attributes (#4097)
Layer detailed content attributes onto the existing hierarchical spans
(qwen-code.interaction / qwen-code.llm_request / qwen-code.tool) gated
by includeSensitiveSpanAttributes:

- Interaction span: user prompt (new_context)
- LLM request span: system prompt + hash + preview + length (full text
  deduped per session via SHA-256), tool schemas (per-tool tool_schema
  events, also hash-deduped), model output
- Tool span: tool input, tool result on every exit path (success +
  pre-hook block + post-hook stop + tool error + try-block cancel +
  catch-block cancel + execution exception)

All large content truncated at 60KB with *_truncated and
*_original_length metadata. Heavy serialization (safeJsonStringify on
tool I/O, partToString on user prompt) is guarded by the sensitive
flag at the call site so it doesn't run when telemetry is off.

Also adds:
- getActiveInteractionSpan() helper for client.ts to attach prompt
  attributes to the interaction span.
- Updated config schema description and docs (telemetry.md +
  settings.md) to reflect expanded scope and add security/cost notes.
- 28 unit tests for detailed-span-attributes, 4 tests for
  getActiveInteractionSpan, integration mocks updated.
2026-05-17 00:36:48 +08:00
qqqys
daaa85e98e
feat(cli): add fork-session resume flag (#4159)
* feat(cli): add fork-session resume flag

* fix(cli): address fork-session review feedback

* fix(cli): handle fork session copy failures

* fix(cli): guard sandbox session handoff flag
2026-05-17 00:27:52 +08:00
Shaojin Wen
b9590283c0
fix(cli): pass rewind selector test props (#4211)
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-16 23:57:50 +08:00
jinye
878f35fc4f
feat(serve): per-request sessionScope override on POST /session (#4175 Wave 2 PR 5) (#4209)
* feat(serve): per-request sessionScope override on POST /session

Resolves the FIXME at httpAcpBridge.ts:BridgeOptions.sessionScope from
#3803 — clients can now override the daemon-wide sessionScope per
request instead of being stuck with whatever boot-time value the
operator picked. A VSCode window that wants strict isolation can ask
for `'thread'` against a default-`'single'` daemon, and vice versa.

Wire change:
- POST /session body accepts optional `sessionScope: 'single' | 'thread'`
- Per-request value wins; daemon-wide default remains the fallback when
  the field is omitted (bit-for-bit backward compat for every existing
  caller)
- Invalid values yield 400 `{ code: 'invalid_session_scope' }`
- New capability tag `session_scope_override` advertised on
  /capabilities.features for negotiation

Bridge changes:
- BridgeSpawnRequest gains optional `sessionScope`
- spawnOrAttach validates the per-request value and resolves
  effectiveScope = req.sessionScope ?? defaultSessionScope
- doSpawn now takes effectiveScope and only stamps `defaultEntry`
  (the single-scope attach slot) when the spawn is single-scope —
  fixes a mixed-scope leak where a thread-first call would let a
  later omitted-scope call attach to the supposedly-isolated session

SDK:
- CreateSessionRequest gains optional `sessionScope`
- DaemonClient.createOrAttachSession conditionally spreads it into the
  JSON body so omitted callers send the same wire shape as before

Tests:
- 4 new bridge tests (override single→thread, override thread→single,
  mixed-scope leak regression, invalid-value rejection)
- 3 new server tests (valid passthrough, invalid 400, omitted backward
  compat)
- 2 new SDK tests (forwards/omits sessionScope on the wire)
- EXPECTED_STAGE1_FEATURES updated for the new capability tag

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(serve): address Wave 2 PR 5 review findings

Three independent review passes found three real issues:

1. Bridge `TypeError` on invalid `sessionScope` collapsed to opaque 500
   in `sendBridgeError` instead of the typed `400 invalid_session_scope`
   the route layer guarantees. Direct embed / test / future entry-point
   callers bypassing the route would see a generic 500 with stack noise
   on stderr — disagreeing with the route contract.

   Fix: add `InvalidSessionScopeError` class (alongside
   `SessionNotFoundError` / `WorkspaceMismatchError` /
   `SessionLimitExceededError`); the `spawnOrAttach` validator now
   throws it, and `sendBridgeError` translates to the same
   `{ error, code: 'invalid_session_scope' }` shape.

2. SDK `DaemonClient.createOrAttachSession` used a truthy check
   (`req.sessionScope ? ...`) for the conditional spread, silently
   erasing falsy-but-defined values (`''`, `null`, `0`) on the wire.
   A buggy caller would never see the daemon's 400 — it'd inherit the
   daemon-wide default while believing it requested a specific scope.
   Fix: use `!== undefined` (matching the bridge's own validation
   shape). Same fix to the server-side spread for consistency.

3. JSDoc and docs referenced `serve --sessionScope` as if it were a
   shipping CLI flag. It isn't — `ServeOptions` has no field, neither
   `runQwenServe` nor `serve.ts` plumbs one, and the production daemon
   default is hardcoded to `'single'`. Strike the references; note
   that #4175 may add the flag in a follow-up.

Test coverage expanded:
- Cap-bypass guard: per-request `'thread'` overrides cannot bypass
  `maxSessions` on a daemon-default-`'single'` deployment. Without
  this, a future refactor that gated the cap on `defaultSessionScope`
  instead of `effectiveScope` would silently let `'thread'` overrides
  amplify past the limit — the exact N-amplification cliff #3803 was
  about.
- Symmetric mixed-scope leak: daemon-default-`'thread'` +
  single-first-call followed by omitted-scope-second-call must produce
  distinct sessions. Mirrors the existing daemon-default-`'single'` +
  thread-first leak regression.
- Concurrent mixed-scope coalescing: simultaneous single + thread
  `spawnOrAttach` against the same workspace under slow `initialize`
  must not collide on `inFlightSpawns` (tracker keys differ by scope).
- Updated invalid-scope rejection test to assert
  `InvalidSessionScopeError` instance + carried `sessionScope` field.

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)
2026-05-16 23:54:20 +08:00
Dragon
8f54ae9c0f
feat(cli): add built-in status line presets with interactive dialog (#4120)
* chore(skills): add codex reproduce workflows

* feat(cli): add built-in status line presets with interactive dialog

Replace the shell-command-only status line with a preset system that
renders structured session info (model, context usage, git branch,
token counts, etc.) without external commands. Users can configure
which items to display via a new interactive dialog accessible through
/statusline or the settings UI.

- Add statusLinePresets module with 16 built-in item types
- Add StatusLineDialog component with search, multi-select, and preview
- Update /statusline command to open the preset dialog
- Extend settings schema to support { type: "preset", items: [...] }
- Enhance MultiSelect with separator items, active marker, and
  customizable checked text
- Update Footer to support theme-colored preset output

* fix(cli): refresh status line preset after saving

* chore: remove codex reproduce skills

* fix(cli): address status line preset review feedback
2026-05-16 23:22:11 +08:00
dreamWB
966b040359
feat(cli): readline Ctrl+P/N for history and selection navigation (#4082)
* feat(cli): readline Ctrl+P/N for history and selection navigation

Adds GNU-readline-style Ctrl+P (previous) and Ctrl+N (next) shortcuts
to the qwen-code TUI so users coming from bash/zsh, Emacs, or Claude
Code feel at home. The change has three orthogonal behavior groups:

1. Input prompt, history-versus-line-motion two-step edge

   Ctrl+P / Ctrl+N and the arrow keys behave identically and apply a
   two-step edge transition that matches GNU readline and Claude Code:
   inside a multi-line buffer they move the cursor between visual
   rows; on the top row with the cursor away from column 0 the first
   Up press snaps the cursor to column 0 without changing history, and
   only the second press walks one entry back. The mirror rule holds
   for Down at the last row (snap to end of line, then advance). After
   navigateUp the buffer is parked at offset 0 (the "start of older
   entry" landing position); after navigateDown setText's default
   end-of-text positioning keeps the cursor at the end. The same
   two-step rule applies to single-line buffers so the
   reverse-direction case the issue called out works: pressing Ctrl+N
   immediately after Ctrl+P loaded a single-line older entry (cursor
   at col 0) first snaps the cursor to end-of-line, and only the next
   Ctrl+N moves forward through the history. Bare k/j inside the
   input prompt remain ordinary typed letters — the vim aliases are
   selection-list shortcuts, not text-editing ones.

2. Selection lists: arrows, k/j, and Ctrl+P/N are interchangeable

   A new pair of Command bindings, SELECTION_UP and SELECTION_DOWN, is
   wired into the shared useSelectionList hook and every dialog that
   used to hand-roll an "up/down arrow only" or "up/k arrow + vim
   only" navigation check. Covered surfaces: the main selection-list
   hook itself, the MCP / extensions / agents / hooks / background-
   tasks / rewind / plugin-choice / ask-user-question dialogs, the
   memory dialog (both its file list and the auto-memory and
   auto-cleanup toggle panel above the list), the settings dialog
   list (with the in-place value editor's "block other keys while
   editing" guard preserved), and the manage-models dialog's top
   tabs row. The auth-provider wizard's Advanced Config focus rows
   and the resume-session picker's cross-mode arrows are extended
   with the readline Ctrl+P / Ctrl+N synonyms while keeping their
   existing arrow-key and (for the session picker) vim k/j semantics
   intact.

3. Selection surfaces that wrap an active text input

   AskUserQuestionDialog's "Other / type a custom answer" field,
   manage-models' search input, the resume-session picker's search
   field, and the auth-wizard's Context-window number input all
   coexist with the selection list on the same screen. In those
   surfaces typing k or j has to land in the text buffer, not scroll
   the surrounding list. The fix is to scope the input-aware handler
   to unambiguous non-letter shortcuts only — arrow keys plus
   readline-style Ctrl+P / Ctrl+N escape the text field, while bare
   letters (including k / j / p / n) are delivered to the active
   input. The keyBinding-level fix that backs this is the
   `{ key: 'k', ctrl: false }` / `{ key: 'j', ctrl: false }` clauses
   on SELECTION_UP / SELECTION_DOWN, which prevent Ctrl+K from
   accidentally matching SELECTION_UP and thereby firing both the
   list-up handler and the KILL_LINE_RIGHT handler in the same
   keystroke (the P0 finding the quality-gate review surfaced).
   Focus-traversal tokens (the agent tab bar and the background-task
   pill) and chord shortcuts (Ctrl+Shift+Up/Down for embedded-shell
   history) are deliberately left untouched because their existing
   "any printable letter yields focus back to the composer" UX would
   break under the new vim-style letter bindings, and the Help
   viewer's scroll is a viewer rather than a selection list and is
   out of this PR's scope.

Documentation: docs/users/reference/keyboard-shortcuts.md is updated
so the Ctrl+P / Ctrl+N entries describe the two-step edge rule and
the radio-button-select table mentions the new k/j and Ctrl+P/N
aliases. Per-dialog on-screen hints (which still read "↑↓ to
navigate") are intentionally not touched so the i18n string surface
stays unchanged; the global reference doc is the authoritative source
for the new shortcuts.

Tests:
 - packages/cli/src/ui/keyMatchers.test.ts adds positive cases
   covering ↑ / ↓ / bare k / bare j / Ctrl+P / Ctrl+N matching
   SELECTION_UP / SELECTION_DOWN and negative cases asserting that
   Ctrl+K and Ctrl+J do NOT match (the conflict guard).
 - packages/cli/src/ui/components/InputPrompt.test.tsx adds a
   "two-step edge transition for history navigation" describe block
   with four cases: a mid-line Ctrl+P snaps to col 0 without invoking
   navigateUp; an at-col-0 Ctrl+P does invoke navigateUp and then
   parks the cursor via moveToOffset(0); a not-at-end Ctrl+N snaps to
   end-of-line without invoking navigateDown; and arrow Up obeys the
   same rule as Ctrl+P for keyboard-parity. The test file's mock
   buffer's setText was also corrected to mirror the real buffer's
   "cursor lands at the end of the new text" semantic so the cursor
   field is internally consistent during keypress assertions; the
   small InputPrompt render-frame snapshot in the same file's
   __snapshots__/ directory was regenerated to reflect the now-
   accurate cursor render position. Three pre-existing arrow-key
   navigation tests were updated to pre-position the mock cursor at
   the relevant edge before pressing the arrow, because the new
   two-step rule means the first arrow press at a non-edge position
   is a cursor snap, not a history step. Multi-line cursor-between-
   rows movement is covered indirectly by the keyBinding-level
   matcher tests plus the end-to-end manual demo plan.

The work landed in three rounds against the planner's gate: round 1
added the unified SELECTION_UP / SELECTION_DOWN Command binding and
the cursor-first dispatch in the input prompt; round 2 picked up the
quality-gate review's P0 (the Ctrl+K double-fire in the "Other"
custom-input field) and the user's hand-test feedback on the missing
two-step edge in the reverse direction plus the MemoryDialog
top-panel sections that weren't wired through SELECTION_*; round 3
swept the remaining adjacent dialogs (SettingsDialog list,
ManageModelsDialog tabs and search transitions, ProviderSetupSteps
advancedConfig, useSessionPicker's cross-mode arrows) so the
keyboard model is uniform across the TUI.

The original issue also asks for Meta+B / Meta+F word motion and
smarter Ctrl+H token-aware backspace among other readline
conveniences. The user explicitly scoped this PR down to Ctrl+P /
Ctrl+N at the planner approval gate; the remaining wish-list items
are deferred to follow-up issues.

Closes #3821

* docs(cli): refine Ctrl+P/N input-history rows; fix Ctrl+J in selection-list comment

Both items came from a non-blocking COMMENTED review on PR #4082
(https://github.com/QwenLM/qwen-code/pull/4082#pullrequestreview-4271527787),
flagging two polish points in the readline Ctrl+P/Ctrl+N feature the parent
commit `feat(cli): readline Ctrl+P/N for history and selection navigation`
(f66427b) introduced.

The `Up Arrow`, `Down Arrow`, `Ctrl+P`, and `Ctrl+N` rows of the Input
Prompt table in `docs/users/reference/keyboard-shortcuts.md` are reworded
to describe the three-phase keystroke sequence the implementation walks
through — an intra-buffer visual-row step (a no-op in a single-line
buffer, where there's exactly one visual row), a column-edge snap when
the cursor reaches the buffer's first or last visual row with the
cursor not already at column 0 (for the up-direction pair) or
end-of-line (for the down-direction pair), and the readline-style
previous-history or next-history walk on the press after the snap. The
reviewer specifically pointed out that the prior wording described
single-line input as "navigates the input history directly", which no
longer matches the post-PR-#4082 behavior: single-line input also goes
through the snap-then-walk two-press rule (the snap is a no-op when
the cursor is already at the line's edge column, in which case the
keystroke does the history walk on its first press). The new sentence
covers the single-line and multi-line cases in one shape — single-line
is the degenerate zero-row-walk-prefix instance of the same rule. The
up-direction text is shared verbatim between the `Up Arrow` row (L31)
and the `Ctrl+P` row (L43), and the down-direction text between the
`Down Arrow` row (L27) and the `Ctrl+N` row (L42), so the keyboard-
parity alias relationship is signaled by source-side text duplication
rather than a prose cross-reference. The Input Prompt table's 234-byte
canonical row width (the separator row's `| <50-dash> | <177-dash> |`
template, which sets the column-1 and column-2 source-side widths the
file's existing untouched rows already align to) is preserved by
trailing-ASCII-space padding inside the description column.

The comment above `[Command.SELECTION_UP]` and `[Command.SELECTION_DOWN]`
in `packages/cli/src/config/keyBindings.ts` previously read

    // Selection list navigation — up/k/Ctrl+P move selection up; down/j/Ctrl+N move selection down
    // ctrl: false on k/j ensures Ctrl+K (kill-line) and Ctrl+N (history-down) are not captured here

The `Ctrl+N` half of the second line is wrong: `Ctrl+N` is intentionally
matched here as the selection-down readline alias — the
`{ key: 'n', ctrl: true }` entry in the `SELECTION_DOWN` array literal
directly below the comment, mirroring the input-prompt-side
`[Command.HISTORY_DOWN]: [{ key: 'n', ctrl: true }]` binding at L134 of
the same file. The Ctrl-modified key the bare-letter `k` and `j`
matchers actually guard against — the one already bound elsewhere
whose double-match with the bare-letter selection-key the `ctrl: false`
opt-out is preventing — is `Ctrl+J`, the ASCII line-feed (0x0A) encoding
of the Enter family that appears as `{ key: 'j', ctrl: true }` inside
the four-alternative `[Command.NEWLINE]` array a few lines below. The
corrected one-liner is

    // Selection-list nav: arrows + k/j + Ctrl+P/Ctrl+N
    // ctrl: false on bare k/j skips Ctrl+K and Ctrl+J

in the same terse no-trailing-period section-label style as the file's
adjacent `// Screen control` (L129), `// History navigation` (L132),
`// Auto-completion` (L213, post-edit numbering), and `// Text input`
(L219) header comments. A 64-line block-comment that earlier in the
review-fix cycle wrapped this same correct fact in dispatch-broadcast-
model prose plus `keyMatchers.test.ts` backreferences was condensed to
those two lines for cell-budget consistency with the rest of the file.

No code behavior change. The local verification surface the reviewer
named at the bottom of the review summary stays green: from
`packages/cli`,

    npx vitest run \
        src/ui/keyMatchers.test.ts \
        src/config/keyBindings.test.ts \
        src/ui/components/InputPrompt.test.tsx

runs 178 cases with 177 passed and one unrelated skip (the
implementation file `InputPrompt.tsx`'s feature flag for the keyboard-
queue-input-editing case that was already skipped on the parent commit),
including all four cases inside the `InputPrompt > two-step edge
transition for history navigation` describe-block — `Ctrl+P with cursor
mid-line snaps to col 0 without touching history`, `Ctrl+N with cursor
not at end-of-line snaps to end without touching history`, `Ctrl+P at
col 0 walks history and parks the cursor at offset 0`, and `arrow Up
applies the same two-step rule as Ctrl+P (snap before navigate)`. Those
four test-case names are the implementation-side anchors the new docs
wording verbally mirrors. `npx tsc --noEmit -p .` in the same package
directory reports zero diagnostics.

* fix(cli): align readline history shortcuts with dialogs

* test(cli): cover readline navigation aliases

* fix(cli): guard readline shortcuts in dialog inputs

* test(cli): cover readline aliases in more dialogs
2026-05-16 23:07:25 +08:00
tanzhenxin
8d765fec78
refactor(core): TaskBase envelope + foreground subagent persistence (#3970)
* refactor(core): TaskBase envelope + foreground subagent persistence

Establishes a shared `TaskBase` envelope across the agent / shell /
monitor task registries with a mandatory `outputFile` field. Brings the
foreground subagent path into compliance with the new contract, so it
now leaves the same JSONL transcript + meta sidecar on disk that
backgrounded subagents have always produced — closing the only gap
where a registered task wrote nothing. Renames the agent-task
discriminator from `flavor: 'foreground' | 'background'` to claw-code's
`isBackgrounded: boolean`; the deprecated names are kept as
one-release type aliases.

PR 1 of the task-registry-unification design. PR 2 will collapse the
three per-kind registries into one thin TaskRegistry plus per-kind
modules.

* refactor(core): drop unused BackgroundTaskFlavor type alias

The alias only preserved the type name; no in-tree caller used it,
and after the field rename no realistic external consumer use survives
(reading entry.flavor / writing { flavor: ... } both fail at the use
site regardless of whether the alias resolves). Drop it instead of
carrying a hollow shim.

* fix(core): tighten foreground subagent launch path

- Register before writing the meta sidecar so a register() failure can't
  leave an orphaned 'running' meta file behind. writeAgentMeta is
  best-effort and never throws, so the inverse failure mode (registry
  entry without sidecar) is a benign degradation.
- Cache getGitBranch by cwd at the agent module level so foreground
  launches don't pay a fresh git rev-parse exec each time. Branches
  don't change within a process under normal use; the transcript
  annotation is best-effort audit metadata.
- Document on cancel() that foreground entries take a partial path
  through the method — Map deletion is the caller's responsibility
  via unregisterForeground() in the tool-call's finally path.

* fix(agent): correct foreground meta status mapping and register order

The foreground finally block in agent.ts mapped any non-ERROR, non-CANCELLED
terminate mode (including MAX_TURNS, TIMEOUT, SHUTDOWN) to 'completed' in
the sidecar, so post-mortem readers and resume logic saw a successful
status for runs that actually hit a guardrail. Flip the ternary to mirror
the background path: GOAL -> completed, CANCELLED -> cancelled, else ->
failed.

Also reorder the background launch so registry.register() runs before
writeAgentMeta(), matching the foreground path. Both paths now share the
same orphaned-meta guarantee.

* test(agent): rename stale foreground-flavor test

The "default flavor (absent) behaves as background" test name and its
backwards-compat comment referenced the old optional flavor field, but
the registration shape has required isBackgrounded for a while now —
there is no "absent" path to exercise. Rename it to describe what the
assertion actually covers: that background entries fire a task-
notification on complete.

* refactor(core): alias BackgroundTaskStatus to TaskStatus

The local `BackgroundTaskStatus` union was byte-identical to the new
shared `TaskStatus` defined in `tasks/types.ts`. Replace it with a
`@deprecated` type alias so external consumers (notably
`nonInteractiveCli.ts`) keep compiling unchanged while the canonical
name lives in one place.

* refactor(core): tidy monitorRegistry signatures and document cancel ordering

Two small consistency wins flagged in review:

1. `dispatchOwnerLifecycleWake` and `dispatchNotification` were the only
   methods on the registry still typed with the deprecated `MonitorEntry`
   alias. Rename their parameters to `MonitorTask` to match every other
   signature in the file.

2. `cancel()` orders `settle()` and `abort()` differently between its two
   branches, which is intentional (silent cancel locks the terminal status
   before abort listeners run; default cancel lets a naturally-completing
   operation settle through its own terminal path). Document that
   asymmetry in a JSDoc on the method so the next reader doesn't have to
   reverse-engineer it.

* refactor(core): migrate internal BackgroundTaskStatus refs to TaskStatus

The `BackgroundTaskStatus` alias was introduced in 91b59a8fb as a
`@deprecated` synonym for external SDK consumers (notably
`nonInteractiveCli.ts`). New internal references in this PR's own
file kept the old name; migrate them so the only remaining usage of
the deprecated alias is the alias declaration itself.

No behavior change — the alias is `= TaskStatus` so the union is
identical.

* test(agent): cover foreground failed-mode terminal status mapping

The foreground finally block maps GOAL→completed, CANCELLED→cancelled,
and everything else (ERROR, MAX_TURNS, TIMEOUT, SHUTDOWN) → failed.
Only the GOAL branch was asserted; the failed-mode fallback had no
coverage even though the same mapping recently regressed (d67da6d50)
and had to be fixed by review.

Adds a table-driven case mocking getTerminateMode to ERROR /
MAX_TURNS / TIMEOUT and asserting patchAgentMeta receives
status: 'failed'. CANCELLED is already covered by the
"foreground CANCELLED prefixes the partial result" test below.

* test(agent): cover foreground CANCELLED → cancelled meta mapping

Extends the foreground terminate-mode it.each to assert that
CANCELLED is recorded as `cancelled` in the on-disk sidecar — the
existing cancel-prefix test only verified the LLM-visible payload,
leaving the patchAgentMeta mapping uncovered. A regression flipping
CANCELLED → 'failed' would now fail this case.

* test(agent): make registry path assertions platform-agnostic

The outputFile/metaPath regexes hardcoded forward slashes, so the
foreground JSONL+meta reservation test failed on Windows where paths
use backslashes. Accept either separator.

* fix(core): guard executeBackground register-throw window; correct outputFile contract

A throwing register() subscriber in executeBackground() would leak the
already-spawned child + open output stream, unreachable by /tasks /
task_stop. Mirror the promote path's defensive try/catch: abort the
entry's controller, destroy the stream, and rethrow so the launch fails
visibly.

Also correct the TaskBase.outputFile contract: agent JSONL is
materialized on the writer's first append, which is the launch prompt
at attach time — not the first runtime event. A subagent cancelled
before any event still leaves a prompt-only JSONL plus meta, not meta
alone.
2026-05-16 22:53:08 +08:00
jinye
379d14ad00
feat(rewind): add file restoration support to /rewind command (#4064)
* feat(rewind): add file restoration support to /rewind command (#3697)

Previously /rewind only truncated conversation history — files modified
by the assistant remained on disk. This adds a file-copy-based backup
system (ported from claude-code's fileHistory) so users can optionally
roll back file changes when rewinding.

Core changes:
- New FileHistoryService with snapshot/backup/restore lifecycle
- trackEdit() called before each file write in edit and write-file tools
- makeSnapshot() at each user turn boundary in client.ts
- Three-phase RewindSelector UI: pick turn → choose restore option → execute
- RestoreOption type: 'both' | 'conversation' | 'code' | 'cancel'

Closes #3697

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(rewind): replace findLast with reverse loop for ES2022 compat

vscode-ide-companion targets ES2022 which lacks Array.findLast.

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(rewind): add missing i18n translations and fix test expectation

- Add file restore i18n keys to all 8 locale files (zh-TW, ca, de, fr,
  ja, pt, ru were missing)
- Update useGeminiStream test to expect promptId in user history item

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(rewind): add getFileHistoryService mock to tool tests

edit.test.ts and write-file.test.ts mock configs lacked the new
getFileHistoryService method, causing trackEdit calls to throw.

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(rewind): allow Esc during diff loading and add missing i18n footer strings

Allow users to press Esc/Ctrl+C to cancel during diff stats loading
phase. Add three missing footer navigation strings to all 9 locale files.

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(rewind): address review feedback — restoreBackup correctness, missing promptId warning, dead code removal

- restoreBackup now returns boolean; applySnapshot only counts a file
  as restored when the backup was actually applied (fixes misleading
  "Restored N file(s)" when backup is missing on disk)
- Show warning when user selects file restore on a turn created before
  file checkpointing was enabled (promptId undefined)
- Remove unused snapshotSequence field, canRestore(), and hasAnyChanges()
  methods that had no callers

* fix(rewind): correct diff direction, truncate snapshots on rewind, add zero-files feedback

- Swap diffLines args to diffLines(backup, current) so +/- stats
  match git convention (insertions = lines added since checkpoint)
- Truncate snapshots after rewind to discard stale timeline state,
  preventing makeSnapshot from using wrong baseline
- Show "No files needed restoration." when rewind finds files already
  at target state (all 9 locales)

* test(tools): assert trackEdit is called before file writes

* fix(i18n): add missing rewind UI locale keys across all 9 locales

* fix(core): reset fileHistoryService on session change, clean up dead code

- Reset fileHistoryService in startNewSession() so /clear gets a fresh
  instance with the new sessionId
- Rebuild trackedFiles after rewind() to avoid stale stat() calls
- Remove unused setCurrentPromptId/getCurrentPromptId dead API

* fix(rewind): validate conversation before file restore, preserve snapshots for code-only

- For 'both': validate conversation can be truncated before restoring
  files to prevent inconsistent state (files rolled back but conversation
  stays at newer state)
- For 'code'-only: pass truncateHistory=false so snapshot timeline is
  preserved — conversation turns remain visible and their snapshots stay
  available for future rewinds

* fix: correct trackEdit race comment — overwrite not orphan

* fix(types): use HistoryItemWithoutId for addItem to preserve union member properties

* fix(types): revert addItem type change, use cast at call site for promptId

* fix(rewind): guard onRewind calls with .catch() to prevent unhandled rejection

* fix(rewind): only truncate snapshot timeline when conversation truncation will execute

* fix(rewind): address tanzhenxin review - gate, partial failure, tests

1. Disable file checkpointing for non-interactive (-p) mode by gating
   on `params.interactive !== false` in addition to `!params.sdkMode`.

2. Surface partial restore failures: `rewind()` now returns
   `RewindResult { filesChanged, filesFailed }`. In "both" mode,
   conversation truncation is skipped when any file fails to restore,
   preventing inconsistent state.

3. Add comprehensive unit tests for FileHistoryService (17 tests
   covering trackEdit, makeSnapshot, rewind, eviction, diffStats).

* fix(rewind): defensive trackEdit + fix version collision on re-track

1. Wrap trackEdit calls in edit.ts and write-file.ts with try/catch
   so file history failures never break core tool operations.

2. Replace hardcoded version:1 in trackEdit with max-version lookup
   across all snapshots. Prevents backup file overwrite when the same
   file is re-tracked after a code-only rewind (truncateHistory=false).

* fix(rewind): add missing i18n keys + fix makeSnapshot version collision

1. Add 'Failed to restore {{count}} file(s): {{files}}' to all 7
   missing locales (ca, de, fr, ja, pt, ru, zh-TW).

2. Use global max-version scan in makeSnapshot (same as trackEdit)
   to prevent backup filename collisions after snapshot eviction.

* fix(rewind): set hasRestoreFailure when promptId is missing

In "both" mode, if the target turn has no promptId, conversation
truncation was still proceeding because hasRestoreFailure was not set.
Now correctly blocks truncation to prevent inconsistent state.

* fix(rewind): show loading state during async restore, close selector in finally

Defer setIsRewindSelectorOpen(false) to a try/finally block so the
selector stays visible during async file restore. RewindSelector now
manages its own isRestoring state: shows "Restoring..." text and
disables all keypress handlers while the restore is in progress.

This prevents the user from seeing a bare prompt with no progress
indicator during slow restores, and eliminates the race where typing
during restore could clobber the pre-filled prompt.

* fix(rewind): skip timeline truncation on partial failure + fix wording

1. rewind() now only truncates the snapshot timeline when
   filesFailed is empty, preventing loss of future checkpoints
   when the caller skips conversation truncation due to failures.

2. Change "No files needed restoration." to the more idiomatic
   "No files needed to be restored." across all 9 locales.

* fix(rewind): address review — TOCTOU in createBackup + outer catch in handleRewindConfirm

- Extract safeCopyFile(src, dst) helper that distinguishes source-missing
  (TOCTOU: file deleted between stat and copyFile) from target-dir-missing,
  so trackEdit no longer silently fails when a file disappears mid-backup.
  Same helper now covers restoreBackup.
- Wrap handleRewindConfirm with an outer catch that surfaces unexpected
  failures via historyManager error item; previously a sync throw from the
  post-rewind block would silently close the selector and leave 'both'
  mode in a half-applied state.
- Add 'Rewind failed: {{error}}' i18n key in all 9 locales.

* test(rewind): cover restoreFromSnapshots, trackEdit no-snapshot path, partial-failure timeline guard

- restoreFromSnapshots: assert relative-path shortening + external-path preservation
- trackEdit before any makeSnapshot: assert no-op early return
- rewind truncation guard: assert snapshot timeline is preserved when filesFailed > 0

* fix(rewind): clean up orphaned backups, surface no-client states, polish

- Per-eviction backup cleanup: when MAX_SNAPSHOTS overflow or rewind
  truncation drops snapshots, remove backup files no longer referenced
  by any surviving snapshot (best-effort, ENOENT-tolerant). Backup files
  are content-deduplicated across snapshots, so the live-set is computed
  from survivors before deletion.
- Surface no-client failure modes in handleRewindConfirm: 'conversation'
  mode now shows an error instead of silently returning; 'both' mode
  shows an info message after restore so the user knows the conversation
  half was skipped.
- i18n the previously hardcoded 'Conversation rewound...' message and
  add 3 new keys to all 9 locales.
- Tighten createBackup signature (drop unreachable null branch).
- Extract getMaxVersion helper to deduplicate identical loops in
  trackEdit and makeSnapshot.

Tests added: orphan-cleanup on overflow, dedupe preservation, rewind
truncation cleanup. All existing tests continue to pass (23 core, 71
AppContainer, 27 i18n).

* fix(rewind): use path separator constant in maybeShortenFilePath

The hardcoded '/' check meant Windows absolute paths (with '\') never
matched the cwd prefix, so the shortening was a no-op on Windows. The
new cleanup tests revealed this by asserting on the relative-path key:
on Windows the key was the full absolute path, so trackedFileBackups
lookups returned undefined.

Switching to the platform sep also makes Windows snapshots use the
relative key like POSIX, improving portability if cwd moves later.
restoreFromSnapshots re-runs maybeShortenFilePath on every key, so
existing on-disk sessions migrate transparently on resume.

* test(rewind): cover trackEdit best-effort guarantees and unchanged-file rewind

- edit.test.ts: assert tool still completes (file written, llmContent
  reflects the edit) when FileHistoryService.trackEdit rejects.
- write-file.test.ts: same for the write_file tool.
- fileHistoryService.test.ts: assert trackEdit swallows createBackup
  failures (forced via storageDir-replaced-with-file → ENOTDIR in
  recursive mkdir) without recording any backup.
- fileHistoryService.test.ts: assert applySnapshot leaves a file
  untouched (mtime unchanged, filesChanged empty) when its content
  already matches the target backup — covers the
  checkOriginFileChanged short-circuit.

* fix(rewind): align fileCheckpointing default + surface backup-missing on rewind

Two issues from a Codex review pass:

- Config: `fileCheckpointingEnabled` defaulted via `params.interactive !== false`,
  which resolves truthy when the caller omits `interactive` — but `this.interactive`
  itself defaults to `false`. Headless/programmatic callers that did not set
  `interactive` would silently start writing file-history backups under
  `~/.qwen/file-history/`. Use the same `?? false` default so the gate matches
  the resolved interactive value.

- checkOriginFileChanged: when the on-disk backup AND the working file have both
  been removed externally, the function returned `false` ("unchanged"), so
  `applySnapshot` skipped `restoreBackup` and rewind reported success even though
  the target snapshot expected the file to exist. Treat any failure to stat the
  backup as "changed" so callers attempt the restore: applySnapshot surfaces the
  missing backup via restoreBackup → filesFailed, makeSnapshot creates a fresh
  backup. Added a regression test for the both-missing path.

* fix(rewind): mark per-file backup failures so rewind surfaces them

Two related issues from a /review pass:

1. Silent data loss in makeSnapshot inheritance: when the per-file
   backup attempt threw inside makeSnapshot, the catch block left the
   path missing from `trackedFileBackups`, and the inheritance loop
   then copied the previous snapshot's backup into the new snapshot.
   A later rewind to that snapshot would restore older content while
   reporting success.

   Now the catch records `{ failed: true, ... }` for the path. The
   inheritance loop skips paths already present in trackedFileBackups,
   so failed paths are no longer paved over by stale carryover. Both
   applySnapshot and getDiffStats honor `failed` — rewind pushes the
   path to filesFailed and the diff preview omits it.

2. Marketing/scope mismatch: the rewind UI offers "Restore code" but
   the feature only tracks edits made via the `edit` and `write_file`
   tools — shell-mediated changes (`sed -i`, `cp`, `rm`, `mv`,
   `npm`, etc.) and out-of-tool manual edits are not captured.
   Added a class-level JSDoc on FileHistoryService spelling out the
   scope, and an inline footer in the restore-options panel:
   "Rewinding does not affect files edited manually or via shell
   commands." (matching the upstream claude-code MessageSelector
   wording). New i18n key in all 9 locales.

Test added: trackEdit/makeSnapshot per-file failure path. Asserts
the new snapshot has `failed: true`, and that rewind to that snapshot
reports the file as filesFailed instead of silently restoring the
inherited stale backup.

* fix(rewind): polish — i18n, type tightening, resumed-session UX hint

Several small wins from the latest /review pass plus a UX mitigation for
turns whose file-history snapshot is not present in memory (most often
because the conversation came from a resumed session, but also when a
turn has no captured edits):

- AppContainer: wrap the "Cannot rewind to a turn that was compressed"
  error in t(); add the new key to all 9 locales.
- RewindSelector: replace the inline `(+N -M in K file/files)` template
  literal with t() using two plural-aware keys; add to all 9 locales.
- DiffStats.filesChanged: tighten from optional to required to match
  reality (every code path that returns a DiffStats sets it). Drops the
  `!.filesChanged!` non-null cascade in RewindSelector.
- RewindSelector phase 2: when the option list does not contain
  code/both (i.e. no file-restore is actionable for this turn), show
  an explicit hint instead of leaving the user to guess why those
  options are missing. Same i18n key in all 9 locales.

The mitigation hint covers the resumed-session case Tan raised
(snapshots are not rehydrated by `/resume` today) without changing
behavior — `getRestoreOptions` already gracefully degrades to
conversation-only when `getDiffStats` returns undefined for a snapshot
that is not in memory; we just surface the "why" to the user.

* fix(rewind): unstick failed marker on the unchanged-file fast path

The `failed: true` marker added in d59838338 was sticky: once set, the
no-change optimization in `makeSnapshot` would copy the failed entry
forward into every subsequent snapshot for as long as the file stayed
unchanged. A single transient I/O error therefore poisoned `/rewind`
for that file until the user happened to modify the content again.

Add `!latestBackup.failed` to the no-change reuse guard so a failed
entry is never copied forward — the next snapshot retries the backup,
which either heals (when the underlying I/O has recovered) or honestly
records another failed entry.

New regression test (`does not carry a failed marker forward when the
file is unchanged`):

- Snapshot p1 with file content X
- Sabotage the storage dir → p2's per-file backup throws → p2 records
  failed: true
- Restore the storage dir; file still equals X
- p3 must NOT copy p2's failed entry; it must retry createBackup and
  produce a fresh non-failed entry that allows rewind to p3 to succeed
2026-05-16 22:16:01 +08:00
qqqys
0dde1ad704
feat(cli): add session-scoped /goal command with judge-driven turn continuation (#4123)
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* feat(cli): add session-scoped /goal command with judge-driven turn continuation

`/goal <condition>` pins a free-form objective for the rest of the session.
While a goal is active, an LLM judge runs at every Stop boundary and either
lets the turn end (condition met) or feeds the judge's reason back as the
next user prompt to keep the model working. Auto-clears on success;
`/goal clear` cancels early. Same primitive as Anthropic's Claude Code
2.1.140 `/goal`, built on qwen-code's existing Stop-hook + function-hook
plumbing — no new subsystem.

Core (packages/core/src/goals/):
  - activeGoalStore: per-session active goal + last-terminal cache, with a
    terminal-observer channel the CLI subscribes to so achieved/aborted
    cards land in history.
  - goalJudge: side-query against a fast model, transcript-grounded
    system prompt + json_schema response + disabled thinking. Tolerant
    JSON extraction with fallback so a flaky judge can't kill the loop;
    30s default timeout (vs. the 5s function-hook default that was
    silently killing real-world judge calls).
  - goalHook: function hook on Stop. Returns {decision:'block', reason}
    when not met (reusing client.ts's existing recursive continuation),
    {continue:true} when met. Self-clears active goal + notifies the
    terminal observer on met/aborted. MAX_GOAL_ITERATIONS=50 backstop.

CLI:
  - goalCommand: /goal | /goal <cond> | /goal clear|stop|off|reset|none|
    cancel. 4000-char cap, trust + disableAllHooks gates. Empty /goal
    shows running status, falls back to the last completed summary.
  - GoalPill: footer chip "◎ /goal active (12s)" — terse, claude-aligned.
  - GoalStatusMessage: set / checking / achieved / cleared / aborted
    history cards. "checking" replaces the generic stop_hook_loop chip
    for goal-driven iterations.
  - restoreGoal: on session resume, rehydrate the active goal hook +
    last-terminal cache from transcript so /goal survives /resume.

Cross-cutting fixes:
  - HookSystem.hasHooksForEvent(eventName, sessionId?): also consults
    SessionHooksManager. Previously SDK / programmatic Stop function
    hooks were silently gated out by client.ts's fast-path check, so
    they never fired.
  - client.ts: yield StopHookLoop on every continuation iteration (was
    iter > 1) — first not-met turn is now visible in the UI.
  - useGeminiStream: commit pending item + clear thoughtBuffer /
    geminiMessageBuffer on every Finished event. Fixes a UI bug where
    a Stop-hook continuation's text bled into the prior turn's pending
    history item (cumulative "te" / "tes" rendering), even though the
    persisted transcript was clean.

Co-authored-by: Qwen-Coder <noreply@qwen.ai>

* test(cli): fix footer goal pill mock

* fix(goal): persist terminal status on restore

* fix(goal): harden judge hook

* fix(goal): sanitize condition in instruction prompt and update matcher test

- goalCommand.ts: collapse newlines and downgrade embedded double-quotes in
  the condition before splicing into the instruction prompt so the wrapping
  quote structure stays intact.
- goalLoop.integration.test.ts: matcher assertion updated to '*' to match the
  current registerGoalHook contract (previously '').

Co-authored-by: Qwen-Coder <noreply@alibabacloud.com>

* feat(goal): surface judge reason on terminal cards

Renders `Last check: <reason>` on the achieved / aborted history card
and on the empty-`/goal` summary so the final view records *why* the
judge ruled the goal complete. Uses a single inline-label Text instead
of the flex-row split used for `Goal:` — the reason is capped at 240
chars and almost always wraps; the flex-row variant hangs the
continuation at the value column's left edge (~12 cols of blank space,
easily mistaken for a stray empty line). Single Text + natural wrap
keeps the continuation flush.

Co-authored-by: Qwen-Coder <noreply@alibabacloud.com>

* fix(goal): re-arm /goal on runtime /resume and /branch

Cold boot path in AppContainer already calls restoreGoalFromHistory after
loading session data, but the runtime /resume and /branch paths skipped
it entirely. After /new + /resume back to a session that had an active
/goal, the in-memory activeGoalStore entry still held the pre-/new
setAt and a hookId pointing to a hook that config.startNewSession() had
torn down — leaving the footer pill ticking from the original setAt
(observable as "几十秒" elapsed immediately after resume) while the
Stop hook was silently dead.

Wire restoreGoalFromHistory into both handlers right after the session
data lands so unregisterGoalHook clears the stale entry and
registerGoalHook re-arms with a fresh setAt / hookId and re-installs
the terminal observer.

Co-authored-by: Qwen-Coder <noreply@alibabacloud.com>

* refactor(goal): reuse shared formatDuration utility

Drop the duplicated local formatDuration from goalCommand.ts and
GoalStatusMessage.tsx in favor of the shared formatters.ts version,
called with { hideTrailingZeros: true }. The shared util already has
its own test suite and matches Claude Code's ShellTimeDisplay style
(round values drop zero-unit tails: `5m 0s` → `5m`).

Co-authored-by: Qwen-Coder <noreply@alibabacloud.com>

* fix(goal): abort judge API call on judge timeout

The judge-timeout path in judgeGoalWithTimeout only resolved a fallback
verdict; the underlying judgeGoal generateContent call kept running
because the hook context signal is never aborted by the timeout. Each
timeout leaked one in-flight request that accumulated across goal-loop
iterations. Link an AbortController into the judge signal and abort it
when the timeout fires.

Co-Authored-By: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(goal): harden judge continuation feedback

* test(goal): align loop integration with safe continuation

* fix(cli): harden goal resume lifecycle

* fix(cli): address goal review blockers

* fix(goal): guard stale same-condition callbacks

---------

Co-authored-by: Qwen-Coder <noreply@qwen.ai>
Co-authored-by: Qwen-Coder <noreply@alibabacloud.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-16 18:14:13 +08:00
jinye
264ed82273
[codex] feat(serve): add capability registry protocol versions (#4191)
* feat(serve): add capability registry protocol versions

Introduce a serve capability registry and advertise protocolVersions from /capabilities while preserving the existing v1 envelope and Stage 1 feature aliases. Update SDK wire types, docs, and focused tests for old-daemon compatibility.

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(serve): clarify capability advertisement semantics

Address PR review feedback by preserving historical capability versions, separating registered and advertised feature helpers, testing protocol version metadata directly, and keeping runtime exports out of the serve types module.

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

---------

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-16 18:07:38 +08:00
qqqys
96b30ee427
feat(cli): add baseline /doctor memory diagnostics (#4180)
* feat(cli): add baseline doctor memory diagnostics

* fix(cli): address doctor memory review feedback

* feat(cli): add doctor memory assessment

* feat(cli): support doctor memory heap snapshots

* feat(cli): add doctor memory sampling

* fix(cli): harden doctor memory heap snapshots

* fix(cli): harden doctor memory heap snapshots

* fix(cli): harden memory heap snapshot diagnostics

* fix(cli): harden doctor memory snapshots

* fix(cli): stabilize heap snapshot cleanup ordering

* fix(cli): harden heap snapshot cleanup

* test(cli): cover memory snapshot fallbacks

* fix(cli): harden doctor memory abort and disk checks
2026-05-16 17:19:50 +08:00
qqqys
372acf1444
feat(cli): argument hint + --auto completion for /rename (#4048)
* feat(cli): argument hint + --auto completion for /rename

Closes #4047.

The /rename command supports a structured --auto flag (let the fast
model generate a sentence-case title from the conversation), but
unlike /model — which advertises --fast via argumentHint and a
completion entry — /rename's flag was undocumented inline. Users had
to either run the command incorrectly or check the docs to learn
about --auto.

- argumentHint: '[--auto] [<name>]' so the completion menu shows the
  shape when the user types `/rename` and tabs.
- completion: returns null on empty / free-text input (don't shadow
  the user typing a title) and surfaces --auto when the partial arg
  is a prefix of it ('-', '--', '--a', '--au', '--auto'). Same shape
  as /model's --fast handling.

Free-text titles intentionally don't auto-complete — there's nothing
meaningful to suggest, and offering --auto on every keystroke would
feel like noise on `/rename my-feature`.

Tests:
- pins argumentHint shape
- empty partial → null
- '-' / '--' / '--a' / '--au' / '--auto' all return the --auto suggestion
- 'my-feature' / 'fix bug' / '-x' return null (free-text path)

Co-Authored-By: Qwen-Coder <noreply@qwen.ai>

* fix(core): fall back to text JSON when generateJson gets no tool call

generateJson registers schemas as a respond_in_schema function
declaration and walks parts[].functionCall for the result. When no
tool_choice is set (the OpenAI-compatible converter never sets one) and
the system prompt explicitly asks for text JSON — e.g. session-title
generation's "Return ONLY a JSON object..." — some models honor the
prompt and emit the answer as a plain text part instead of calling the
tool. The answer is semantically correct; we just weren't reading it.

This bottoms out in /rename --auto as "The fast model returned no
usable title" on qwen3.6-max-preview, and likely affects every other
generateJson caller (next-speaker checker, edit corrector, etc.) on
the same class of model.

Add a tolerant fallback: when no function call comes back, parse
getResponseText(result) — which already skips thought parts — with a
JSON-object extractor that strips optional ```json fences and reads
the outermost {...} block. Strictly additive; the function-call path
stays primary.

Closes #4057.

Co-Authored-By: Qwen-Coder <noreply@qwen.ai>

* refactor(cli): unify /rename and /rename --auto pipelines

Bare /rename (no args) used to call a private generateKebabTitle path
that asked the fast model (or main-model fallback) for a 2-4 word
kebab-case name via a plain text call. /rename --auto used the
schema-enforced tryGenerateSessionTitle path for a 3-7 word sentence-
case title. Two code paths, two prompts, two failure-message formats,
two sanitizers — with the kebab path consistently lagging on history
filtering, surrogate handling, and error specificity.

Collapse to a single fast-model schema-enforced pipeline. Both bare
/rename and /rename --auto now call tryGenerateSessionTitle and both
record titleSource: 'auto' on success. The --auto flag stays as an
explicit user-intent marker (preserves the existing argumentHint /
completion / parseArgs surface) but no longer diverges semantically.

Bare /rename now also hard-requires fastModel; users who relied on
the main-model fallback need to either /model --fast <name> or pass
a name explicitly (/rename <name>). The new failure message points
at both options.

Co-Authored-By: Qwen-Coder <noreply@qwen.ai>

* fix(cli): clarify rename title failure

* test(core): cover loose json fallback

---------

Co-authored-by: Qwen-Coder <noreply@qwen.ai>
2026-05-16 16:47:15 +08:00
jinye
435f711e33
feat(cli): warn users that rewind is disabled in IDE mode (#4122)
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2026-05-15 20:27:37 +08:00
jinye
dcf7681d65
feat(core,cli): add generic atomicWriteFile, wire into Write/Edit tools, upgrade @types/node (#4096)
* feat(core): add generic atomicWriteFile and wire into Write/Edit tools

The Write and Edit tools used bare fs.writeFile, risking half-written
corrupt files on crash or power loss. Both tools' source code contained
explicit TODOs noting atomic write as the fix.

- Add atomicWriteFile() supporting string/Buffer with flush (fsync),
  permission preservation, symlink resolution, and EXDEV fallback
- Wire StandardFileSystemService.writeTextFile() through atomicWriteFile
- Refactor atomicWriteJSON to delegate to atomicWriteFile (adds fsync)
- Deduplicate renameWithRetry from runtimeStatus.ts
- Add flush:true to writeWithBackupSync for settings writes
- Upgrade @types/node to ^22.0.0 (flush option type support)

Closes the TODO in write-file.ts:371-385 and edit.ts:487-497.
Ref: #4095 (Phase 1)

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(core): address review comments on atomicWriteFile

- Fix permission window: separate existingMode from desiredMode so
  mode is set during writeFile (not just chmod after), eliminating
  the brief window where tmp file has overly permissive defaults
- Fix broken symlink handling: use lstat+readlink instead of realpath
  to correctly resolve symlinks whose targets don't exist yet,
  preventing the symlink from being replaced by rename
- Add test for writing through a broken symlink

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(core): address wenshao review on atomicWriteFile

- Fix Windows bug: use path.isAbsolute() instead of startsWith('/')
- Hoist path import to top-level static import
- Resolve full symlink chains via loop (handles A→B→C), with
  ELOOP guard at 40 hops matching POSIX SYMLOOP_MAX
- Mask stat.mode with 0o7777 to strip file-type bits
- Document EXDEV fallback atomicity loss in JSDoc
- Add tests for relative symlinks and multi-level symlink chains

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* fix(test): fix CI failures from atomic write changes

- edit.test.ts: mock writeTextFile instead of chmod 444 for write error
  test — atomic write creates tmp file in same dir, so readonly target
  no longer triggers a write error
- atomicFileWrite.test.ts: skip permission tests on Windows — chmod is
  a no-op and stat.mode always returns 0o666

* fix(core): address deepseek review on atomicWriteFile

- Add try/catch around chmod calls to handle FAT/exFAT filesystems
  where POSIX permissions are not supported
- Add explicit type annotation to lstats variable

* fix: restore version numbers to 0.15.11 after rebase

* fix(core): resolve relative symlinks through directory symlinks

resolveSymlinkChain used path.dirname() to resolve relative symlink
targets, which is purely string-based. When intermediate path
components are themselves directory symlinks, the result would be
wrong (e.g. /a/link/file → ../target resolves to /a/target instead
of the kernel-resolved /b/target).

Use fs.realpath() on the parent directory to get the kernel-resolved
base for relative-target resolution.

* fix(test): normalize path separators in directory symlink test

Windows readlink returns native separators (backslashes), causing
the directory-symlink test to fail on Windows CI. Wrap both sides
of the symlink-target comparison with path.normalize.

* refactor(core): dedupe write/chmod logic in atomicWriteFile

- Extract writeOptions construction and tryChmod helper, removing
  duplication between the main write path and the EXDEV fallback
- Document atomicWriteJSON's symlink-preservation behavior

Addresses deepseek review on PR #4096.
2026-05-15 17:52:50 +08:00
ChiGao
9d20536343
perf(cli): code-split lowlight to cut startup V8 parse cost (#4070)
* perf(cli): code-split lowlight to cut startup V8 parse cost

Move the syntax-highlight engine out of the synchronously-parsed cli.js
entry into a separately-emitted chunk and load it via dynamic import on
the first code-block render. Until the chunk arrives, code blocks render
as plain text; the next React commit of the surrounding subtree picks up
the highlighted version, so users never see incorrect highlighting –
just an imperceptibly later transition for the very first code block.

Mechanics:
- esbuild config: switch entry to outdir + splitting:true so that
  `await import('lowlight')` produces an actual on-disk chunk that's
  only parsed by V8 when first needed.
- esbuild-shims: rename injected __dirname/__filename to qwen-prefixed
  symbols + use `define` to redirect free references. Previous inject
  collided with vendored libraries (yargs) that ship their own
  `var __dirname` ESM-compat polyfill once splitting flattens chunks.
- prepare-package: include the new chunks/ directory in the published
  package's files list.
- CodeColorizer: keep the public colorize{Code,Line} signatures and HAST
  rendering identical; on first call when the chunk hasn't loaded it
  returns the plain line and fires the dynamic import via a tiny
  standalone loader module.
- lowlightLoader (new): isolates the lazy-load surface to a module with
  zero transitive imports (no themeManager, settings, or core). This
  lets test-setup prime the cache without dragging the whole UI module
  graph into every test file, which was observed to perturb theme and
  settings test outcomes when CodeColorizer was imported directly.
- test-setup: await loadLowlight() once via the standalone loader so
  synchronous snapshot tests see the highlighted output deterministically.

Measurements (real $HOME, n=15 interleaved A/B vs main HEAD, macOS):

| Metric             | Before (mean±sd ms) | After (mean±sd ms) | Δ        | t      | p        |
| ------------------ | ------------------- | ------------------ | -------- | ------ | -------- |
| firstByte (wall)   | 1633.5 ± 88.7       | 1475.8 ± 73.3      | -157.7   | 5.31   | 1.33e-5  |
| idle (wall)        | 2048.7 ± 93.6       | 1902.3 ± 80.2      | -146.3   | 4.60   | 8.71e-5  |
| cli.js size        | 25 MB               | 6.9 MB             | -18.1 MB | —      | —        |

Both metrics clear the +50ms-or-10% Welch's t-test bar by an order of
magnitude. cli.js drops 72%; total payload (cli.js + chunks/) is
similar but only cli.js is parsed at module-eval time, which is the
phase that dominates the user-visible startup gap.

How to validate:
  npm run bundle
  ls dist/                         # cli.js + chunks/lowlight-*.js
  node dist/cli.js -y              # interactive UI still renders

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): resolve chunk-relative sibling paths under esbuild splitting

With `splitting: true`, esbuild hoists modules with shared dependencies
into `dist/chunks/`. Three modules derived runtime paths from
`import.meta.url` assuming they were co-located with `cli.js`; once
hoisted, `path.dirname(fileURLToPath(import.meta.url))` resolved to
`dist/chunks/` and sibling-asset lookups silently missed:

- `skill-manager.ts`: bundledSkillsDir → `dist/chunks/bundled` (actual
  `dist/bundled/`). The `existsSync` guard swallowed the miss, dropping
  all four bundled skills (`/review`, `/qc-helper`, `/batch`, `/loop`)
  with no user-visible signal.
- `ripgrepUtils.ts`: `getBuiltinRipgrep()` → `dist/chunks/vendor/...`.
  Falls back to system rg if installed, otherwise null on minimal
  hosts — degrading grep to the slow internal scanner.
- `i18n/index.ts`: `getBuiltinLocalesDir()` → `dist/chunks/locales`.
  User-visible behavior survives via the static glob import in
  `tryImportBundledTranslations`, but the loose-on-disk override path
  is dead.

Each module now strips a trailing `chunks` segment when present, so
the lookup resolves under `dist/`. In source / transpiled modes the
basename is never `chunks`, so the fallback is a no-op.

Also:
- Add `chunks` to `DIST_REQUIRED_PATHS` in `create-standalone-package.js`
  so a regressed bundle that produces only `cli.js` fails the
  pre-packaging check instead of shipping a broken archive.
- Expand `esbuild-shims.js` header so future contributors understand
  that `__qwen_filename` / `__qwen_dirname` always resolve to the
  shim's chunk file (dist/chunks/) and that sibling-asset lookups
  must strip the `chunks` segment.

Reported by claude-opus-4-7 via Qwen Code /qreview on #4070.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* perf(cli): prefetch lowlight from AppContainer + harden loader

Three follow-ups to the lowlight code-split:

- AppContainer fires `loadLowlight()` from a mount effect so the dynamic
  import is already in flight before any code block needs colorizing.
  Without this, code blocks committed to ink's append-only `<Static>`
  region before the import resolves stay plain text for the rest of
  the session — Static can only be re-rendered via `refreshStatic`,
  which is not wired to lowlight load completion. Common reachable
  paths: short `--prompt -p` runs that finalize quickly, Ctrl+C-
  cancelled first turns, and the first-paint history replay on
  `--resume`. The startup parse-cost win is preserved (V8 still
  parses off the critical path).

- `lowlightLoader.ts` latches the first import failure so subsequent
  calls short-circuit to a rejected promise instead of re-attempting
  `import('lowlight')` on every keystroke. The colorizer already falls
  back to plain text on miss; recovery requires a fresh process anyway.

- `test-setup.ts` wraps the top-level `await loadLowlight()` in
  try/catch. A transient import failure no longer crashes the entire
  vitest run — tests that hit a code block render the plain-text
  fallback and surface a warning.

- `CodeColorizer.tsx` header comment updated to point at the
  AppContainer prefetch instead of claiming first-paint always sees
  a loaded instance.

Reported by DeepSeek/deepseek-v4-pro and claude-opus-4-7 via Qwen Code
/review and /qreview on #4070.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* refactor(bundle): extract resolveBundleDir helper, apply to extensions/new

Centralises the `chunks/` strip pattern that three sites
(`i18n/index.ts`, `skills/skill-manager.ts`, `utils/ripgrepUtils.ts`)
each duplicated after the round-3 fix in d581da04d. The implicit
coupling to `esbuild.config.js`'s `chunkNames: 'chunks/[name]-[hash]'`
now lives in a single helper (`packages/core/src/utils/bundlePaths.ts`),
so a future rename only needs updating in one place.

Also applies the same anchor to `commands/extensions/new.ts:EXAMPLES_PATH`.
That module is currently bundled into `cli.js` (so the strip is a no-op
today), but `qwen extensions new --help` always reads the examples
directory in its yargs `builder` — confirmed against the built bundle
that the lookup hits `dist/examples/` (sibling of `cli.js`). Using the
helper future-proofs against esbuild later hoisting the module into a
shared chunk, where the bare `__dirname`/`import.meta.url` lookup would
silently break the command for every end user.

While here, surface lowlight-load failures from `AppContainer`'s
prefetch effect to the debug channel (`debugLogger.warn`) instead of
swallowing them silently. The loader already latches failures
permanently, so this fires at most once per session; `CodeColorizer`
continues to fall back to plain text on miss, so user-visible behaviour
is unchanged.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(bundle): restore __filename shadow in ripgrepUtils; harden lowlight loader

Round-4 review (wenshao 2026-05-13 13:12) flagged five issues in the
recent code-split work. This commit addresses all of them.

CRITICAL — `packages/core/src/utils/ripgrepUtils.ts`: the round-3
`resolveBundleDir` refactor removed the local `__filename` declaration
but `getBuiltinRipgrep` still references bare `__filename` to decide
how many `..` segments to walk. In `npm run dev` (tsx, ESM) `__filename`
is undefined so the function throws `ReferenceError`. In the bundle
esbuild's `define` rewrites it to `__qwen_filename` (the shim chunk
path), which is the wrong string but happens to short-circuit to
`levelsUp = 0` — accidentally correct only because the chunk-path
string never contains `path.join('src', 'utils')`. Reproduced via tsx:
`__filename is not defined`; fixed by re-introducing the explicit
local shadow plus a comment explaining why centralising both helpers
into `resolveBundleDir` cannot replace the per-file shadow.

`packages/cli/src/ui/utils/lowlightLoader.ts`: the previous permanent
`lowlightFailed` latch left syntax highlighting dead for the entire
process lifetime on transient errors (EMFILE, antivirus locks,
slow-disk-after-wake). Replaced with a 30-second cooldown — within the
window subsequent calls return the cached rejection synchronously
(keeps the per-render short-circuit that protects against
permanently-broken installs); after the cooldown the next call retries
the dynamic import. Exposes `isLowlightCoolingDown()` so render-hot
callers can also skip duplicate failure logging.

`packages/cli/src/ui/utils/CodeColorizer.tsx`: hoisted
`loadLowlight()` + log out of the per-line render loop into a single
`ensureLowlightLoading()` call at the top of `colorizeCode`. In the
failure case this collapses hundreds of duplicate debug entries (one
per line) to one per block. The instance is now passed down to
`highlightAndRenderLine` as a parameter.

`packages/core/src/utils/bundlePaths.ts` + `esbuild.config.js`:
exposed `BUNDLE_CHUNK_DIR = 'chunks'` as a named constant and updated
`esbuild.config.js` to interpolate the same name into `chunkNames`
(plus an explicit "MUST stay in sync" comment). Renaming on one side
without the other now stands out at review time. Also expanded the
`define` comment with a contributor-facing warning describing exactly
why bare `__dirname` / `__filename` in source files becomes the shim
chunk path, and pointing future contributors at the
`fileURLToPath(import.meta.url)` shadow pattern (and
`resolveBundleDir` for sibling-asset lookups).

Verified:
- typecheck (all 4 workspaces): clean
- packages/core tests: 7747 passing (no regressions)
- packages/cli tests: only the pre-existing `useAtCompletion.test.ts`
  filesystem-order failures remain (confirmed against `git stash`)
- `npm run bundle` succeeds; `node dist/cli.js --version` returns
  `0.15.10`; `node dist/cli.js --help` renders normally
- `npx tsx <call getBuiltinRipgrep>` now returns the vendored path
  instead of throwing `ReferenceError`

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(bundle): validate lowlight API shape; sync doc-comment drift; add tests

- lowlightLoader: validate runtime shape of createLowlight() before the
  `as Lowlight` cast so an upstream API rename routes through the cooldown
  latch instead of silently degrading every code block to plain text.
- bundlePaths: correct doc comment — esbuild.config.js maintains its own
  `BUNDLE_CHUNK_DIR` constant rather than importing this one (it runs
  before any TS compile step).
- AppContainer: update prefetch-failure comment to reference the cooldown
  symbols (`LOWLIGHT_RETRY_COOLDOWN_MS` / `lowlightLastFailureAt`) that
  replaced the removed `lowlightFailed` latch.
- New unit tests covering the lowlightLoader state machine (success,
  in-flight dedup, shape mismatch, cooldown skip, post-cooldown retry)
  and `resolveBundleDir`'s strip-only-on-exact-match contract.

* test(bundlePaths): use path.resolve for Windows-compatible absolute paths

CI failure on Windows: the new `resolveBundleDir` tests built expected
values with `path.join(path.sep, ...)` (e.g. `\tmp\dist`), but
`pathToFileURL` resolves drive-less paths against the current drive
on Windows. The URL -> `fileURLToPath` round-trip returned `D:\tmp\dist`,
while the expectation stayed `\tmp\dist`, tripping all three new
assertions.

Switched both the URL source and the expected value to a single
`path.resolve(path.sep, ...)` anchor per test so both sides absorb
whatever the platform considers absolute. POSIX behaviour is unchanged
(`/tmp/dist` -> `/tmp/dist`).

---------

Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-15 17:26:18 +08:00
DennisYu07
57282ebb7d
feat(hooks): add prompt hook type with LLM evaluation support (#3388)
* implement prompt hook

* resolve comment

* resolve comment

* resolve comment

* resolve comment

* fix unit test
2026-05-15 17:13:05 +08:00
ChiGao
78c65c8dee
chore(deps): re-upgrade ink 6 → 7.0.3 (upstream Static remount fix landed) (#4119)
* chore(deps): re-upgrade ink 6 → 7.0.3 (upstream Static remount fix landed)

PR #3860 first upgraded ink 6 → 7.0.2. PR #4083 reverted because of a
TUI regression: `<Static>` did not re-emit items when its `key` prop
was bumped, so `/clear` / Ctrl+O / refreshStatic left the history area
blank under ink 7.0.2.

ink 7.0.3 (released after #4083) contains the exact fixes:

  - be9f44cda Fix: <Static> remount via key change drops new items (#948)
  - 669c4386c Fix: Drop stale <Static> output from fullStaticOutput on identity change (#950)
  - 7c2267c01 Fix `useBoxMetrics` not accepting ref objects with an initial null value (#945)

Changes:
  - `ink` ^6.2.3 → ^7.0.3 (root hoist + cli direct)
  - `react` ^19.1.0 → ^19.2.4 (cli direct; ink 7.0.3 peerDeps requires >=19.2.0)
  - `react`/`react-dom` overrides ^19.2.4 added so the transitive graph
    stays deduped to a single instance (avoids `Invalid hook call` from
    multiple React copies, the classic ink-upgrade hazard)
  - `wrap-ansi` already on ^10.0.0 from #4083's partial-revert (no change)

Verified:
  - `npm ls ink` → single `ink@7.0.3` across all peer deps
  - `npm ls react` → single `react@19.2.4`
  - `npm run typecheck --workspace=@qwen-code/qwen-code` clean
  - `npm run typecheck --workspace=@qwen-code/qwen-code-core` clean
  - Composer.test.tsx 20/20, MainContent.test.tsx 6/6, TableRenderer.test.tsx
    59/59 + 1 skipped — all key UI components green on the new ink

The Static-remount regression is upstream-fixed in 7.0.3, so the
runtime path is restored without needing #3941's overflowY-self-managed
viewport. #3941 (virtual viewport) remains an opt-in performance
feature on top.

* fix(deps,cli): add @types/react overrides + move refreshStatic out of setCurrentModel updater

Two follow-ups from the multi-round audit of the ink 7.0.3 re-upgrade:

1. @types/react / @types/react-dom now pinned to ^19.2.0 in root
   overrides. packages/web-templates still declares @types/react ^18.2.0
   in its devDeps. Today the CLI build is unaffected (web-templates's
   18.x types are nested in its own node_modules and the React-using
   src/insight and src/export-html files are excluded from its tsconfig
   build), but a future reincludes-or-hoist accident would land
   conflicting global JSX namespaces in the CLI compile graph. Match
   the dep dedup we already enforce for `react` and `react-dom` so the
   type graph stays as deduped as the runtime graph.

2. AppContainer's onModelChange handler was calling refreshStatic() as
   a side-effect inside the setCurrentModel updater. React.StrictMode
   double-invokes state updaters in dev, so model swaps fired two
   clearTerminal writes + two <Static> key bumps. The double work was
   masked under ink 6 (key changes were no-ops on <Static>), but ink
   7.0.3 honors key changes — the doubled work is now potentially
   visible as a faster flash-flash on every model switch.

   Refactor: setCurrentModel becomes a pure setter; refreshStatic
   moves into a useEffect keyed on currentModel with a ref-comparison
   guard so the first render doesn't fire. Single clearTerminal write
   per real model change, even under StrictMode.

Verified: npm ls ink → single 7.0.3, npm ls react → single 19.2.4,
npm ls @types/react → 19.2.10 hoisted (npm flags web-templates's 18.x
constraint as overridden, which is the intended behavior). Typecheck
clean across cli + core workspaces.

* fix(cli): collapse model-change effect back into one batched handler

wenshao's PR #4119 review correctly flagged that splitting the
onModelChange flow into two effects (b25831b0e) reintroduced the
issue #3899 freeze regression on every model switch:

  1. setCurrentModel(model) commits first, with the OLD
     historyRemountKey.
  2. <Static key={`${historyRemountKey}-${currentModel}`}> sees its
     key change (because currentModel did) and remounts immediately.
  3. MainContent's render-phase progressive-replay reset only fires
     when historyRemountKey changes, so replayCount is still the
     full mergedHistory.length from any prior catch-up.
  4. The remounted Static dumps the entire history in one synchronous
     layout pass — exactly the freeze progressive replay was added
     to avoid (#3899). The second effect's refreshStatic() bump
     arrives a render too late.

Fix: do not split. Both side effects (refreshStatic, which writes
clearTerminal + bumps historyRemountKey, and setCurrentModel) live
in the event handler again, with a ref guard for same-model
notifications. The React.StrictMode concern that motivated b25831b0e
is addressed by keeping the side effect OUT of the setState updater
(it now runs once per event-handler invocation, not once per
double-invoked updater call). Both setState calls land in the same
React batch, so historyRemountKey and currentModel update together —
MainContent's render-phase reset sees the new key, replayCount drops
to the first chunk, and Static remounts with chunked replay intact.

Tests:
- AppContainer.test.tsx: 4 new tests covering the synchronous
  refreshStatic side-effect contract, same-model no-op, ref-guarded
  StrictMode double-invoke, and unsubscribe-on-unmount.
- MainContent.test.tsx: new regression guard — when currentModel
  changes but historyRemountKey is held constant, progressive replay
  must NOT reset (pins the MainContent invariant the two-effect
  refactor accidentally relied on).

Verified: vitest packages/cli AppContainer + MainContent green (82/82).
Typecheck clean.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

---------

Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-15 16:35:25 +08:00
tanzhenxin
f6315b378d
refactor(cli): revert dynamic slash command LLM translation (#4145)
* refactor(cli): revert dynamic slash command LLM translation (#4137)

Removes the runtime LLM-translation path for dynamic slash command
descriptions added in #3871, along with its `general.dynamicCommandTranslation`
setting and the `/language translate` subcommand tree.

Keeps the built-in locale coverage from the same PR untouched. Localization
of dynamic command descriptions should be solved at the source (manifest
fields, not runtime model calls); see #4137 for the proposed alternative.

* refactor(cli): drop translate prompts from mustTranslateKeys

Follow-up to the dynamic command translation revert: the 7 prompt keys
were stripped from every locale file in the previous commit, but the
allow-list in mustTranslateKeys still demanded them.

* refactor(cli): drop dead CommandService.fromCommands and vacuous tests

Follow-up cleanup after the dynamic command translation revert.

CommandService.fromCommands was introduced by #3871 solely to wrap the
LLM-translated command list. With the LLM-translation path gone, it has
no remaining non-test callers — remove it and the matching test mock.

Also drop two assertions in languageCommand.test.ts that checked for the
absence of a top-level /language cache command. They tested a migration
state that never existed in this branch and now pass vacuously.

* docs: drop /language translate references after revert

Two user-facing docs documented the /language translate subcommands
(status/on/off/cache refresh/clear) that were removed in the dynamic
command translation revert. Strip them so users following the docs
don't hit "Invalid command" errors.

* refactor(cli): drop unused localizeDescription field

The DynamicCommandLocalizationService that read this flag was removed in
the revert, leaving the field with five setters and zero readers. Drop the
field, its JSDoc, and the five `localizeDescription: true` assignments.
Also tidy the now-misleading `modelDescription` JSDoc and the stale
`reloadCommands` comment that referenced the removed feature.

* refactor(cli): drop unused getLanguageNameForTranslationTarget

The only caller was the removed DynamicCommandLocalizationService.
Remove the function from `i18n/languages.ts` and the matching
import + re-export from `i18n/index.ts`.
2026-05-15 16:01:16 +08:00
DennisYu07
1c529e4f0a
feat(hooks): Add TodoCreated and TodoCompleted hooks for todo lifecycle events (#3378)
* add TaskCreated and TaskCompleted

* resolve comment

* resolve lint

* change merge logic from simple to or

* resolve lint error

* reslove commnent

* fix i18n key mismatch and malformed imports

* resolve comment
2026-05-15 15:51:01 +08:00
MikeWang0316tw
02a65f90c4
fix(i18n): Correct zh-TW translations to match Traditional Chinese conventions (#4129)
* fix(i18n): Correct zh-TW translations to match Traditional Chinese conventions

Fix ~131 lines of Traditional Chinese (zh-TW) translations that used
Simplified Chinese character forms instead of standard Traditional
Chinese usage.

Changes:
- 文件 → 檔案 (47 occurrences)
- 爲 → 為 (45 occurrences)
- 啓 → 啟 (44 occurrences)
- 曆史 → 歷史 (6 occurrences)
- 鏈接 → 連結 (4 occurrences)
- 菜單 → 選單 (3 occurrences)

* fix(i18n): Replace 服務器 with 伺服器 (15 occurrences)

Align with Traditional Chinese convention where 伺服器 is the standard
term for 'server' in computing contexts.

* fix(i18n): Update zh-TW.js header comment to prevent accidental overwrite

Clarify that the file is the authoritative source and should not be
overwritten with auto-generated output, to prevent future maintainers
from regenerating with raw OpenCC and losing manual corrections.

* fix(i18n): Add zh-TW regression check and maintenance docs

Addresses reviewer feedback on PR #4129 (points 2 and 3):

- scripts/check-i18n.ts: Iterate over parsed zh-TW translation values
  (not raw file content) and report the offending key. Replace the
  earlier substring list with ZH_TW_FORBIDDEN_PATTERNS, which targets
  the three real regression categories: variant Traditional characters
  produced by OpenCC s2t (爲, 啓), Mainland-Chinese vocabulary (服務器,
  菜單, 鏈接), and pure Simplified characters. Excludes 禁用 / 配置 /
  文件 / 打開 to avoid false positives on Taiwan-valid usage.
- scripts/tests/check-i18n.test.ts: Cover the new check, including
  negative cases for Taiwan-valid vocabulary.
- docs/users/features/language.md: Document zh-TW maintenance — the
  vocabulary table, why raw OpenCC s2t output is not acceptable, and
  where the CI-enforced list lives.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(i18n): Address review feedback on zh-TW check (#4129)

- check-i18n.ts: Sort ZH_TW_FORBIDDEN_PATTERNS longest-first and break
  on first match so e.g. `历史` reports the specific bigram instead of
  also firing the bare `历` rule (no duplicate CI errors).
- check-i18n.ts: Add ZH_TW_ALLOWED_EXCEPTIONS escape hatch so a future
  legitimate translation (e.g. 區塊鏈 in a UI string) can opt out by key
  without weakening the global pattern list.
- docs/users/features/language.md: Add a "CI enforced?" column so
  contributors can tell which rows block CI vs. which are review-only
  style guidance. Replace bare `曆` in the table with the `曆史` bigram
  and note that `曆` is correct in calendar terms (日曆, 農曆, 西曆) —
  prevents a future maintainer from globally replacing 曆→歷.
- Tests: Cover the dedup behavior on overlapping patterns.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* docs(i18n): Note word-boundary limitation of zh-TW substring check

Document the known limitation that `includes()`-based pattern matching
does not respect Chinese word boundaries — a bigram like `鏈接` will
false-positive on `區塊鏈接口` (區塊鏈 + 接口). Direct contributors to
`ZH_TW_ALLOWED_EXCEPTIONS` when this happens instead of weakening the
pattern list.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-15 15:26:12 +08:00
DennisYu07
7c2b51d28e
fix(hooks): inject SessionStart additionalContext into chat context (#4115)
* inject addContext for SessionStart

* resolve comment

* resolve comment

* resolve comment

* fix comment

* unfiy function and resolve comment

* resolve comment
2026-05-15 15:21:25 +08:00
kkhomej33-netizen
6b55d01968
fix(cli): preserve debug session across sandbox relaunch
Preserve the outer debug session ID when relaunching into the sandbox by passing it through an internal sandbox-only session flag.
2026-05-15 14:44:47 +08:00
jinye
ff63da2652
refactor(serve): extract createInMemoryChannel helper (#4156 A1) (#4160)
* refactor(serve): extract createInMemoryChannel helper from httpAcpBridge.test.ts (#4156 A1)

Sub-PR A1 of issue #4156 (Stage 1.5b Mode A daemon). Pure refactor with
zero behavior change.

Extracts the inline paired NDJSON channel construction (`new TransformStream`
× 2 + `ndJsonStream` × 2) that was duplicated across `httpAcpBridge.test.ts`
into a production helper `createInMemoryChannel()` at
`packages/cli/src/serve/inMemoryChannel.ts`. The helper is added to
`packages/cli/src/serve/index.ts`'s barrel export alongside the rest of
the serve module's public API.

The helper is intentionally bare — it returns only the stream pair, no
lifecycle / teardown surface. Two reasons:
  1. Consumer behavior diverges widely (stuck channel, crashable child
     simulation, no-op, real in-process termination); a one-size-fits-all
     `close()` would either pull test-fixture concerns into a production
     module or force a single shape on consumers that don't want it.
  2. The SDK's `ndJsonStream` outer wrapper does not reliably propagate
     close on `Stream.writable` to the opposite `Stream.readable`;
     consumers needing to simulate a child exit hold their own underlying
     `TransformStream` references and close those directly.

10 of 11 inline call sites in `httpAcpBridge.test.ts` migrate cleanly to
the new helper. The 11th (`makeChannel` at line 151) keeps the inline
4-line construction because its `kill()` closure needs the underlying
`ab` / `ba` writables to simulate child-process termination — a comment
above the function explains the asymmetry.

The helper is also a primitive for the future A2 PR's
`inProcessAcpBridge.ts`, which will use it to wrap an in-process
`QwenAgent` without spawning a `qwen --acp` child (see issue #4156 §3
decision 1 and §8).

Test plan:
- New `inMemoryChannel.test.ts`: 5 tests covering bidirectional round-trip,
  ordering preservation, and bidirectional direction isolation
- Existing `httpAcpBridge.test.ts`: 70 tests, identical count and behavior
  before vs after migration
- `vitest run packages/cli/src/serve/inMemoryChannel.test.ts
  packages/cli/src/serve/httpAcpBridge.test.ts` — 75/75 pass
- `tsc --noEmit -p packages/cli/tsconfig.json` — clean for changed files

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* refactor(serve): address Copilot review feedback on createInMemoryChannel

Two small follow-ups from #4160 review:

1. inMemoryChannel.test.ts:113,137 — handle the pending `reader.read()`
   that the isolation tests intentionally leave hanging when the timeout
   wins the race. `reader.releaseLock()` in `finally` rejects that
   pending read per Web Streams spec; without a rejection handler this
   could surface as an unhandled rejection / flaky test signal. Added a
   no-op rejection handler via the two-arg `.then(onResolve, onReject)`
   form so the cleanup-path rejection settles cleanly.

2. inMemoryChannel.ts:11 — the JSDoc said "two `TransformStream<...>`
   pairs" which reads ambiguously as "two pairs of TransformStream"
   (i.e., 4 streams). The implementation creates exactly two
   TransformStreams (one per direction). Reworded to "two
   `TransformStream<...>` instances (one per direction)" to disambiguate.

Tests still 5/5 pass.

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)

* refactor(serve): expose abort() teardown primitive on createInMemoryChannel + route test through barrel

Two follow-ups from #4160 review:

1. Expose `abort(reason?)` on the helper return value (per @wenshao
   critical comment). Reasoning: the helper previously returned only the
   `Stream` pair, leaving consumers no way to tear the channel down.
   `ndJsonStream`'s outer wrapper does not reliably propagate `close()`,
   but `abort()` on the underlying byte-level `TransformStream` is
   forceful-by-spec — pending reads on both sides settle immediately so
   GC can reclaim. This unblocks the future Stage 1.5b in-process bridge
   (#4156, sub-PR A2) which needs teardown on daemon shutdown.

   The settlement shape is documented honestly in JSDoc: at the inner
   byte-level layer pending reads reject with the supplied reason; at
   the outer SDK-wrapped `Stream` the wrapper translates that into a
   clean `{done: true}` signal. Either way, pending operations no
   longer hang — that's the teardown invariant we care about.

2. Route the test's import through the `serve/index.js` barrel rather
   than the source file (per @wenshao suggestion). Without a test that
   exercises the public API path, a typo or missing re-export in the
   barrel would go undetected in CI.

Tests: 8/8 helper tests pass (5 existing + 3 new abort tests covering
teardown invariant + idempotency + no-reason variant). 70/70 existing
httpAcpBridge tests still pass.

🤖 Generated with [Qwen Code](https://github.com/QwenLM/qwen-code)
2026-05-15 14:43:06 +08:00
dreamWB
da1941c975
fix(cli): handle MinTTY Ctrl+Backspace as delete-previous-word
Refs #3926
2026-05-15 14:37:29 +08:00
Shaojin Wen
790f2d0485
refactor(serve): 1 daemon = 1 workspace (#3803 §02) (#4113)
* refactor(serve): 1 daemon = 1 workspace (#3803 §02)

Stage 1 shipped with M-workspaces-per-daemon routing (`byWorkspaceChannel`
Map keyed by request `cwd`). The §02 architectural revision in
`docs/comparison/qwen-code-daemon-design/02-architectural-decisions.md`
narrows the bridge to 1 daemon = 1 workspace × N sessions: each daemon
binds to one canonical workspace path at boot; `POST /session` with a
mismatched `cwd` returns 400 `workspace_mismatch`. Multi-workspace
deployments run multiple daemon processes (one per workspace, supervised
externally — systemd / docker-compose / k8s / `qwen-coordinator`).

Bridge state collapses from maps to single optional slots:

- `byWorkspaceChannel: Map<string, ChannelInfo>` → `channelInfo?: ChannelInfo`
- `inFlightChannelSpawns: Map<string, Promise>` → `inFlightChannelSpawn?: Promise`
- `byWorkspace: Map<string, SessionEntry>` → `defaultEntry?: SessionEntry`
- `liveChannels: Set<ChannelInfo>` → not needed; `channelInfo` is the live
  reference, cleared only by `channel.exited` (preserves the tanzhenxin
  BkUyD invariant that `killAllSync` finds a target mid-SIGTERM-grace)

`BridgeOptions.boundWorkspace` becomes required. `WorkspaceMismatchError`
is thrown from `spawnOrAttach` when the request's canonical cwd doesn't
match the bound path, translated to 400 `workspace_mismatch` (with both
paths in the body) by the route layer. `CapabilitiesEnvelope.workspaceCwd`
surfaces the bound path so clients pre-flight check + omit `cwd` from
`POST /session` (it falls back to the bound workspace).

A new `--workspace <path>` CLI flag lets operators override
`process.cwd()` at boot. The previous `--http-bridge` / `--multi-workspace`
opt-in was never shipped; nothing changes for default users running
`qwen serve` in their project directory.

Removed code path: ~150 LOC of multi-workspace map machinery in
`httpAcpBridge.ts` plus the test cases that exercised it.

Test surgery:

- New `makeBridge()` helper in `httpAcpBridge.test.ts` injects
  `boundWorkspace: WS_A` by default; tests that need a different bind
  (the mismatch test) pass it explicitly.
- `does NOT reuse across workspaces` → `rejects cross-workspace requests
  with WorkspaceMismatchError` (the new semantics under §02).
- `shutdown kills every live channel` retargeted to single-channel
  multi-session shutdown.
- `killAllSync force-kills channels even after shutdown cleared
  byWorkspaceChannel (BkUyD)` retargeted to single-channel: the
  invariant is the same (channel reference must outlive eager shutdown
  clearing), the surface is just smaller.
- `listWorkspaceSessions` cross-workspace assertion now expects empty
  for the un-bound path.
- `--max-sessions` cap test uses two thread-scope sessions on `WS_A`
  instead of WS_A + WS_B.

Closes #3803 §02.

* fix(serve): address review findings on the §02 refactor

Two correctness fixes + four doc/test polish items surfaced by the
multi-agent review of #4113:

1. `killSession` → `spawnOrAttach` race (Critical). After killing
   the last session, `channel.kill()` runs through a 5s SIGTERM grace
   before SIGKILL. During that window a concurrent `spawnOrAttach`
   used to hit `ensureChannel`, find `channelInfo` still set, and
   reuse the dying transport — either landing the caller with a
   sessionId that 404s on every follow-up once `channel.exited`
   fires, or hanging until the newSession timeout.

   Fix: add an `isDying: boolean` flag on `ChannelInfo`, set
   synchronously by `killSession` / `doSpawn`-newSession-failure /
   `shutdown` BEFORE awaiting `channel.kill()`. `ensureChannel`
   treats a dying channel as absent and spawns a fresh one. The
   tanzhenxin BkUyD invariant ("`channelInfo` reference must outlive
   the kill-await for `killAllSync` mid-grace") is preserved — we
   set `isDying` but don't clear `channelInfo` until the OS reaps
   the child via `channel.exited`. A regression test in
   `httpAcpBridge.test.ts` pins the invariant: a never-resolving
   `kill()` keeps the SIGTERM grace open while a concurrent spawn
   verifies the factory was called twice (two distinct handles).

2. `boundWorkspace` canonicalization divergence (Critical).
   `server.ts` and `runQwenServe.ts` each computed
   `opts.workspace ?? process.cwd()` independently. The bridge
   canonicalized that string via `realpathSync.native` (resolving
   symlinks, case-folding on case-insensitive filesystems); the
   callers retained the raw form. On macOS HFS+ / APFS or any
   symlinked path, `/capabilities.workspaceCwd` advertised one
   spelling while the bridge enforced against another — clients
   echoing the advertised path back saw `POST /session` succeed but
   the response carry a different `workspaceCwd`.

   Fix: export `canonicalizeWorkspace` from `httpAcpBridge.ts` and
   call it once in `runQwenServe` (after the existence check) and
   once in `createServeApp`. Both paths land on the same canonical
   form; the bridge's own re-canonicalize is now a no-op
   (idempotent).

3. Reject `--workspace` pointing at non-existent directories at
   boot (Suggestion). `canonicalizeWorkspace`'s ENOENT fallback to
   `path.resolve` previously let the daemon boot pointed at a path
   that didn't exist; every `POST /session` then spawned a
   `qwen --acp` child with that cwd and the agent failed with an
   opaque ENOENT. Now `runQwenServe` `statSync`s the bound path at
   boot and rejects "directory does not exist" / "not a directory"
   with a clear message.

4. Stale docstrings (Nice to have). `types.ts` `ServeMode` JSDoc
   said "one `qwen --acp` child PER WORKSPACE" — directly
   contradicted the new `workspace` field's doc in the same file.
   `commands/serve.ts` `--http-bridge` description said "per
   workspace" — directly contradicted the `--workspace` flag's help
   in the same yargs builder. Both updated to "per daemon (the
   daemon binds to ONE workspace at boot)".

5. Stale `byWorkspace` comment references (Nice to have).
   `server.ts:188` ("orphaned in byId / byWorkspace") and
   `httpAcpBridge.test.ts:1210` ("still in byId/byWorkspace at the
   moment of crash") referenced the removed Map. Updated to
   `defaultEntry`.

6. `/capabilities` curl example in the Authentication section of
   `docs/users/qwen-serve.md` was missing the new `workspaceCwd`
   field — the Quickstart's curl example was updated but the
   parallel one in the auth section was not. Synced.

Tests added:
- `killSession marks the channel dying so concurrent spawnOrAttach
   gets a fresh channel` — pins fix (1).
- `--workspace flows end-to-end and surfaces on /capabilities` —
   exercises the runQwenServe → server.ts → bridge plumbing that
   no prior test covered.
- `rejects --workspace pointing at a non-existent directory` and
   `rejects --workspace pointing at a regular file` — pin fix (3).
- `rejects relative --workspace at boot` — covers the absoluteness
   check that exists but was untested.

Net: +238 / -24 across 8 files. All 149 serve tests pass.

* fix(serve): BkUyD overwrite race + Windows-fragile test + doSpawn-failure coverage

Round-2 review of #4113 caught three follow-up issues introduced by
or left open after round-1's fixes:

1. **BkUyD invariant overwrite race (Critical).** Round-1's `isDying`
   flag lets `ensureChannel` skip a dying channel and spawn a fresh
   one. When the fresh spawn completes, `channelInfo = info` overwrote
   the dying channel's reference — leaving NO global pointer to it.
   `killAllSync()` then iterated only `channelInfo` (the fresh one)
   and missed the dying child entirely. A double-Ctrl+C arriving
   mid-SIGTERM-grace would call `process.exit(1)` before the dying
   child's per-channel SIGKILL escalation timer fired, orphaning the
   child.

   Restore a `aliveChannels: Set<ChannelInfo>` (parallel to the
   original Stage 1 design, but justified by single-workspace too).
   Entries added in `ensureChannel`, removed by each channel's
   `channel.exited` handler. `killAllSync` iterates the SET, not the
   single attach-target slot. `shutdown` does the same — snapshots
   every alive channel and kills each, not just the current
   `channelInfo`.

   New regression test pins the invariant: spawn → killSession
   (channel marked dying, kill hangs) → spawnOrAttach (fresh channel
   overwrites `channelInfo`) → `killAllSync` — expect BOTH channels'
   `killSync` to fire. Pre-fix only the fresh one would have fired.

2. **Windows-fragile test path.** The new
   `rejects --workspace pointing at a regular file` test used
   `new URL(import.meta.url).pathname` to get a path to the test
   file. On Windows that returns `/C:/path/...` (leading slash);
   `fs.statSync` then resolves it as path-from-current-drive-root,
   fails with ENOENT, and the test sees the "does not exist" error
   message instead of the expected "not a directory" branch. CI runs
   `windows-latest`. Fix: `fileURLToPath(import.meta.url)` from
   `node:url`.

3. **doSpawn newSession-failure isDying path was untested.** The
   round-1 fix added `ci.isDying = true` to both `killSession` AND
   `doSpawn`'s newSession-failure catch, but only the killSession
   path had a regression test. Added a parallel one for the doSpawn
   path: thread-scope bridge with a `newSessionImpl` that throws on
   the first call → captures the rejection without awaiting it (the
   bridge's `await ci.channel.kill()` hangs in the test), yields
   enough cycles for the `isDying = true` sync prefix to settle, then
   confirms (a) the next `spawnOrAttach` produces a fresh channel
   and (b) `killAllSync` finds both channels in `aliveChannels`.

Also added a `newSessionImpl` option to the test FakeAgent — the
existing `initializeThrows` hook covered handshake-time failures, but
post-init `newSession` rejections (auth, bad config, mid-init
crashes) had no test affordance.

All 151 serve tests pass.

* docs(serve): update daemon-client-quickstart for §02 single-workspace

Round-3 review caught that the SDK example doc was the only one of the
three serve-related docs that the §02 refactor didn't touch. Updated:

- Boot log example now shows the `, workspace=/path/to/your-project`
  suffix that `runQwenServe` emits after the §02 changes.
- The "Hello daemon" example now reads `caps.workspaceCwd` off
  `/capabilities` and passes it back as `workspaceCwd` on session
  creation — illustrating the documented pre-flight pattern, not a
  hand-written literal that may not match the daemon's actual bind.
- Shared-session example makes the prerequisite explicit: the daemon
  must be bound to `/work/repo` (via `--workspace` or `cd`); under §02
  two clients can only share a session if they're both hitting a
  daemon already bound to that workspace.
- New "Workspace mismatch" section shows how to handle the
  `400 workspace_mismatch` error class: catching `DaemonHttpError`,
  branching on `body.code`, surfacing `boundWorkspace` /
  `requestedWorkspace` for the operator. This is a new error
  class SDK consumers' error handlers should branch on.

No code changes; docs only.

* feat(sdk,test): align SDK types + integration tests with §02 single-workspace

Round-4 review caught one type-drift gap + a set of integration-test
assumptions that the §02 refactor invalidated.

**SDK type drift.** `DaemonCapabilities` in
`packages/sdk-typescript/src/daemon/types.ts` was the SDK-side mirror
of `CapabilitiesEnvelope` on the daemon side. The §02 PR added
`workspaceCwd: string` to the daemon envelope (and the round-3 doc
example reads `caps.workspaceCwd` off the SDK client) but the SDK
type wasn't updated. A TypeScript consumer copying the doc snippet
verbatim would hit `TS2339 'workspaceCwd' does not exist on type
'DaemonCapabilities'`. The wire field is present so JS consumers
wouldn't notice — but the SDK is marketed as a TypeScript quickstart,
so this is a real onboarding break.

Fix: add `workspaceCwd: string` to `DaemonCapabilities` (parallel to
`DaemonSession.workspaceCwd` which is already there). The SDK unit
test for `client.capabilities()` was updated to put the new field
in the mocked response.

**Integration tests.** `qwen-serve-routes.test.ts` spawns a real
`qwen serve` daemon in `beforeAll`. Three breakages exposed:

1. The daemon was launched without `--workspace`, so it inherited
   the test runner's `cwd`. Tests then POST `workspaceCwd: REPO_ROOT`
   assuming the daemon is bound to the repo root — true when run via
   `npm test` from the repo, brittle from IDEs / launchers that have
   a different `cwd`. Added `'--workspace', REPO_ROOT` to the spawn
   args so the bound workspace is deterministic regardless of where
   the test runner is launched.

2. The `bad modelServiceId` test used `cwd: '/tmp'`. Under §02 this
   would now return 400 workspace_mismatch before the session was
   spawned. Switched to `REPO_ROOT` and softened the `attached`
   assertion (REPO_ROOT may already have a session from earlier
   tests in the suite under sessionScope:single).

3. Added three new integration tests pinning the §02 surface
   end-to-end through a real daemon process:
   - `rejects cross-workspace cwd with 400 workspace_mismatch` —
     posts `/tmp` and asserts the full structured error body
     (`code`, `boundWorkspace`, `requestedWorkspace`).
   - `omits cwd → falls back to bound workspace` — posts an empty
     body and asserts the response's `workspaceCwd` matches REPO_ROOT
     (verifies the runQwenServe → createServeApp → bridge fallback
     plumbing).
   - `GET /capabilities surfaces workspaceCwd` — asserts the new
     SDK type field is populated correctly off the wire.

All 422 unit tests pass (cli serve + sdk). Integration tests
typecheck clean.

* fix(serve): address /review feedback from gpt-5.5 + deepseek-v4-pro

Process the 7 inline /review comments on PR #4113:

- C1+C3 (SDK): make `DaemonCapabilities.workspaceCwd` and
  `CreateSessionRequest.workspaceCwd` optional in the SDK types.
  `workspaceCwd` is an additive field on the v=1 envelope per #3803
  §02; the protocol's "bump v only on incompatible changes" stance
  is honored by leaving the field optional at the type level.
  `DaemonClient.createOrAttachSession` now omits `cwd` from the body
  when `workspaceCwd` isn't passed, matching the PR description's
  "SDK accepts bound path or none". Adds a unit test pinning the
  empty-body shape.

- C2 (docs/users/qwen-serve.md): the `--http-bridge` row described
  the pre-§02 per-session model; updated to reflect one child per
  daemon with N sessions multiplexed via ACP `newSession()`.

- C4 (server.ts): `WorkspaceMismatchError` was silently 400'ing
  without a stderr breadcrumb, leaving operators blind to
  cross-workspace routing drift. Mirrors the SessionLimitExceeded
  /InvalidPermissionOption observability pattern.

- C5 (server.test.ts): the `/capabilities` fallback test compared
  `res.body.workspaceCwd` against raw `process.cwd()`; on macOS
  default tmpdir flows (`/var/folders/...` → `/private/var/...`)
  the canonicalize-once route value diverges. Use
  `realpathSync.native(process.cwd())` to match the route's
  canonicalization.

- C6 (server.ts): the cwd-not-absolute error said "cwd is required
  and must be an absolute path" but cwd is now optional under §02.
  Tightened wording to "must be an absolute path when provided".

- C7 (runQwenServe.ts): the `statSync` catch only wrapped ENOENT
  with a friendly diagnostic; EACCES / EPERM (typical for
  SIP-protected dirs on macOS or root-owned paths the daemon's UID
  can't traverse) re-threw as raw `SystemError`. Wrap both codes
  with a `--workspace`-context message so the boot failure points
  at the flag the operator set.

Docs: quickstart shows the explicit-pass-or-omit options side by
side; protocol reference notes `workspaceCwd` is additive to v=1.

* fix(serve/test): make /work/bound literals Windows-portable

Windows CI failed on this PR's two new tests because
 returns  (drive-relative
absolute), so the route's canonicalize step diverged from the hardcoded
literal. Mirror the WS_A/WS_B pattern already used in
httpAcpBridge.test.ts: define WS_BOUND / WS_DIFFERENT via
`path.resolve(path.sep, …)` and use the constants everywhere. The
400 workspace_mismatch test would still have passed (mock controls
both throw + assertion) but I aligned it for consistency.

Failures from CI run 25806528710:
  expected 'D:\work\bound' to be '/work/bound' (Object.is)

Affected tests:
  - createServeApp > GET /capabilities > reports the bound workspace
  - createServeApp > POST /session > 200 when cwd is omitted

* fix(serve): address second /review round (gpt-5.5 + deepseek-v4-pro)

Four new inline findings from the latest /review pass:

- N1 (integration-tests/cli/qwen-serve-routes.test.ts) — Critical:
  the `workspace_mismatch` assertion compared `requestedWorkspace`
  against the literal `'/tmp'`, but the bridge canonicalizes via
  `realpathSync.native` and on macOS `/tmp` is a symlink to
  `/private/tmp`. Compare against `realpathSync.native('/tmp')` so
  the assertion is portable.

- N2 (packages/cli/src/serve/types.ts):
  `CapabilitiesEnvelope.workspaceCwd: string` (server side) diverged
  from the SDK's `DaemonCapabilities.workspaceCwd?: string`. Made the
  server type optional too — matches the SDK, matches the protocol
  doc's "additive to v=1" framing, doesn't change runtime emission
  (the post-§02 server still always populates the field).

- N3 + N4 (packages/cli/src/serve/server.ts + sdk-typescript/.../DaemonClient.ts):
  the route's `cwd` validation treated every non-string body value
  (`null`, `123`, `{}`, `[]`) the same as omitted, silently falling
  back to `boundWorkspace`. That hid client/orchestrator
  serialization bugs as "session attached to wrong workspace".
  Now the route uses `'cwd' in body` to detect presence and rejects
  presence-but-not-a-string with `400 'cwd must be a string absolute
  path when provided'`. Empty string still hits the existing
  `path.isAbsolute` branch ("must be an absolute path when
  provided"), so an SDK caller passing `workspaceCwd: ''` no longer
  silently lands in the daemon's bound workspace.

  SDK side: reverted my conditional spread to `cwd: req.workspaceCwd`
  unconditional. `JSON.stringify` strips `undefined` automatically
  (so omitted `workspaceCwd` becomes "no `cwd` key" on the wire, as
  before), but empty-string is now forwarded verbatim and the server's
  400 surfaces the bug instead of the SDK swallowing it. Added a unit
  test pinning the empty-string-forwarded shape.

Server tests:
  - `400 when cwd is present but not a string` covers null / number /
    object / array via a sub-loop.
  - `400 when cwd is the empty string` pins the isAbsolute path.

  bridge: 73/73; server: 80/80 (was 78, +2 new); SDK: 40/40 (was 39,
  +1 empty-string test). tsc clean for SDK and PR-touched CLI files.

* fix(serve): use const cwd in POST /session (prefer-const lint)

CI lint failed with packages/cli/src/serve/server.ts:199:9 prefer-const: 'cwd' is never reassigned. The wave-4 rewrite split the original 'let cwd; if (!cwd) cwd = boundWorkspace' into a single ternary, which removes the only mutation path; the variable should be const accordingly.

* fix(serve): address third /review round (gpt-5.5 + glm-5.1 + deepseek-v4-pro)

Five new inline findings; M1 was already resolved in 1c7f5f069.

- M2 (httpAcpBridge.ts): drop the dead `ChannelInfo.workspaceCwd`
  field. Pre-§02 it was the routing key for `byWorkspaceChannel.get`;
  after the §02 collapse all reads target `SessionEntry.workspaceCwd`
  and `ChannelInfo.workspaceCwd` was only written, never read. Per-
  channel storage also suggests variance the "1 daemon = 1 workspace"
  model forbids. Removing the field encodes the single-workspace
  invariant in the type itself; left a stub comment so future
  readers don't reintroduce it.

- M3 (httpAcpBridge.ts): fast-path `canonicalizeWorkspace` when
  `req.workspaceCwd === boundWorkspace`. The §02 recommended client
  flow is `caps.workspaceCwd` → POST `cwd: caps.workspaceCwd`, and
  the omit-cwd route in server.ts synthesizes the same equality.
  Both hit the equality check and skip the sync `realpathSync.native`
  syscall. Non-equal inputs fall through to the full canonicalize
  (clients sending `/work/./bound`, mixed casing on case-insensitive
  FS, symlink aliases) so correctness is unchanged.

- M4 (httpAcpBridge.ts): operator stderr breadcrumb in the
  `channel.exited` handler. An agent crash (OOM / segfault) used to
  be silent on the daemon side — the child-stderr forwarder caught
  whatever the child wrote before dying (often nothing on
  SIGKILL/segfault), and SSE subscribers saw `session_died` frames
  but operators reading `qwen serve`'s own output had no signal that
  the agent process was gone. Log code+signal+affected-session-count
  so the line is the canonical "agent disappeared" indicator.

- M5 (server.ts): documentation-only. The reviewer wanted
  `createServeApp` to validate `opts.workspace` exists + is a
  directory (currently only `runQwenServe` does). Trade-off: doing
  that breaks 4 existing tests which pass synthetic `/work/bound` on
  purpose to exercise route-layer behavior without a real directory.
  Deferred the helper extraction; added a JSDoc note pinning the
  contract so future entry points binding `createServeApp` to user
  input know to replicate the validation.

- M6 (runQwenServe.ts): pass the already-canonical `boundWorkspace`
  into `createServeApp` via `opts.workspace`. `canonicalizeWorkspace`
  is idempotent so the server-side recanonicalize is a no-op today,
  but if a future refactor ever makes it non-idempotent the values
  the route advertises on `/capabilities` and the bridge enforces
  would diverge — landing clients in a "/capabilities says X, POST
  /session/X returns workspace_mismatch" contradiction. Removes the
  drift risk.

bridge: 73/73; server: 80/80; tsc clean for PR-touched files.

* fix(serve,sdk): address fourth /review round (deepseek-v4-pro x2)

Two new inline findings:

- O1 (server.ts): the POST /session route uses `'cwd' in body` against
  `safeBody`'s `Object.create(null)` output to distinguish "client
  omitted cwd" from "client sent cwd". The semantics quietly couple
  to `safeBody`'s literal strip list (`__proto__/constructor/prototype`).
  If a future maintainer adds a user-facing key (e.g. `cwd`) to that
  strip list, the route's presence-check would silently flip to
  "absent → fallback", masking the bug as "wrong workspace bound."
  Extracted `PROTOTYPE_POLLUTION_KEYS: ReadonlySet<string>` as a named
  module-scope constant; safeBody uses `.has()` on it (behavior
  unchanged); the route's comment now cross-references the const so
  the coupling is documented at both ends. The const's JSDoc spells
  out what to do if the strip set ever has to grow into user-key
  territory.

- O2 (sdk-typescript): `DaemonCapabilities.workspaceCwd` is
  `string | undefined` (additive to v=1; pre-§02 daemons omit). SDK
  consumers that pass it into a `string` context get a TS strict
  error or, against an old daemon, a runtime
  `Cannot read properties of undefined`. Added a `requireWorkspaceCwd`
  helper + `DaemonCapabilityMissingError` so consumers can opt into
  an actionable
  `DaemonCapabilities.workspaceCwd is missing — introduced in #3803 §02 …`
  error instead. Exported both from `@qwen-code/sdk`'s top-level
  module + the `daemon/` sub-module. Unit tests cover populated,
  missing, and empty-string inputs.

bridge: 73/73; server: 80/80; SDK DaemonClient: 43/43 (was 40, +3
new requireWorkspaceCwd cases). tsc clean for SDK and PR-touched
CLI files.

* fix(serve): address tanzhenxin REQUEST_CHANGES (cold-spawn + streaming-test bind)

Two findings from the CHANGES_REQUESTED review on PR #4113.

- T1 (integration-tests/cli/qwen-serve-streaming.test.ts) — high
  severity: the daemon spawn in `beforeAll` did not pass
  `--workspace REPO_ROOT`, so under §02 the daemon bound to
  whatever cwd the test runner was invoked from. Every later
  `createOrAttachSession({ workspaceCwd: REPO_ROOT })` then 400'd
  with `workspace_mismatch`, and the entire file — child-crash
  recovery, multi-client first-responder permission, Last-Event-ID
  resume — silently no-op'd once `SKIP_LLM_TESTS` was unset. The
  sibling `qwen-serve-routes.test.ts` got the same fix earlier in
  this PR; this file was missed in that pass. Added the flag with a
  comment pointing at the rationale so the omission can't recur.

- T2 (packages/cli/src/serve/httpAcpBridge.ts) — medium severity:
  cold-spawn window orphans the agent child on double-Ctrl+C. The
  `qwen --acp` child exists from the moment `channelFactory` spawns
  it, but pre-fix the bridge only added the channel to
  `aliveChannels` AFTER `connection.initialize()` returned. During
  the up-to-`initTimeoutMs` (default 10s) handshake window
  `aliveChannels` was empty, and a double-Ctrl+C in that window
  played out as: first SIGINT entered `shutdown()` and awaited the
  in-flight spawn; second SIGINT called `killAllSync()` against an
  empty set; `process.exit(1)` orphaned the child. Same class of
  bug the BkUyD invariant set out to close — the post-init
  overwrite race was covered, the pre-init handshake window wasn't.

  Fix: move `info` creation + `aliveChannels.add(info)` + the
  `channel.exited` handler registration BEFORE the `initialize`
  await. Init-failure / late-shutdown / child-crash-during-handshake
  all converge on the same cleanup path: mark `isDying = true`,
  `await channel.kill()`, let the exited handler `aliveChannels
  .delete(info)` once the OS reaps the process. `channelInfo` (the
  attach target) is still assigned LAST so `ensureChannel`'s
  fast-path never returns a still-handshaking channel.

  Regression test: `killAllSync force-kills the channel during the
  initialize handshake` uses a bespoke factory whose agent's
  `initialize` never resolves and asserts `killAllSync` fires
  killSync against the channel during the handshake window. Pre-fix
  the test would observe an empty `killSyncCalls` array.

bridge: 74/74 (was 73, +1 cold-spawn test); server: 80/80;
tsc clean for PR-touched files.

* fix(serve): address third /review round (gpt-5.5 + glm-5.1 + deepseek-v4-pro)

Eight new inline findings; six applied, two deferred-with-reply.

- P1 (httpAcpBridge.ts init-failure isDying comment): my comment
  overstated what `info.isDying` accomplishes on the init-failure
  path — concurrent `ensureChannel()` callers don't bypass via
  `isDying`, they coalesce on `inFlightChannelSpawn` and observe the
  same rejection. Reworded to describe the actual cross-path
  invariant marker.

- P2 (server.ts workspace_mismatch log injection): doudouOUC flagged
  log injection via `err.requested` (user-controlled). `path.resolve`
  + `realpathSync.native` preserve control chars in path segments,
  so a body `{"cwd": "/legit/path\nqwen serve: FAKE LOG"}` would
  emit two valid-looking daemon log lines on stderr — weaponizing
  line-based log shippers (Splunk / Loki / journald → SIEM).
  `JSON.stringify` both `err.bound` and `err.requested` in the log
  line escapes control chars + quotes the values, making any
  injection attempt visible-as-quoted-noise rather than forged-line.
  Bound is operator-controlled and inherently safe but quoted
  symmetrically for readability. The defense-in-depth alternative
  (reject control chars in canonicalizeWorkspace) is deferred —
  this single log site was the actionable interpolation; future
  workspace-path-into-stderr / -JSON / -templated-SQL flows can pick
  up the rejection if they ship.

- P3 (httpAcpBridge.test.ts): refactor the cross-workspace
  WorkspaceMismatchError test to a single `.catch((e) => e)` capture
  rather than firing the rejection twice (once for the `rejects
  .toBeInstanceOf` matcher, once for the field assertions). Logic
  unchanged.

- P4 (httpAcpBridge.ts channel.exited log): the `qwen serve:
  channel exited (...)` line fired on every channel exit including
  planned shutdown — alarming for operators who Ctrl+C'd a healthy
  daemon. Guarded with `if (!shuttingDown)` so the planned-shutdown
  case (operator already saw `received SIGINT, draining...`) stays
  silent. The killSession path (last session leaves, daemon stays
  up — no top-level context line) still logs, since the line is the
  only signal that the cleanup actually ran.

- P5 (httpAcpBridge.ts): light trim of the "pre-fix" narrative
  voice in two comment blocks (cold-spawn ensureChannel layout +
  BkUyD killAllSync aliveChannels iteration). Kept the invariant
  explanations — those carry maintenance value — dropped the
  "pre-fix the code did X" framing that's review-context not
  future-reader context.

- P6 (server.ts + runQwenServe.ts): `createServeApp` now accepts a
  pre-canonicalized `deps.boundWorkspace` to skip its own
  `canonicalizeWorkspace` syscall when the caller (runQwenServe)
  already did the work. Replaces my earlier `{...opts, workspace:
  boundWorkspace}` opts-mutation hack — cleaner separation of
  concerns + drops one `realpathSync.native` per boot. Direct
  callers (tests, embeds) that omit `deps.boundWorkspace` still get
  the in-body canonicalize path.

- P8 (httpAcpBridge.ts): defensive `aliveChannels.size > 2`
  warning. The set is intentionally multi-entry to cover the
  killSession-then-spawnOrAttach overlap window (size 2 is
  legitimate). Anything higher implies a `channel.exited` handler
  never fired for a prior channel — a real leak we'd otherwise
  catch only as gradually-growing RSS. The warning surfaces it the
  moment it happens.

- P7 (CreateSessionRequest.workspaceCwd optional): deferred with
  reply rationale. Making the field optional is the §02 design
  ("SDK accepts bound path or none"); the JSDoc already explains
  the omit-vs-explicit choice; Stage 1 has no shipping SDK
  consumers so there's no breakage to call out in a changelog file.
  No code change.

bridge: 74/74 (cross-workspace test refactor + behavioral assertions
unchanged); server: 80/80; SDK 43/43. tsc clean for PR-touched
files.

* fix(serve): apply auto-fixes from /review (#4113)

- canonicalizeWorkspace: narrow catch to ENOENT only, propagate other filesystem errors
- listWorkspaceSessions: add fast-path string equality to avoid realpathSync on every poll
- GET /workspace/:id/sessions: return 400 workspace_mismatch for cross-workspace queries
- SessionNotFoundError: accept optional extra message; clarify agent-crash-on-spawn case
- requireWorkspaceCwd: distinguish empty-string (post-§02 bug) from absent (pre-§02 daemon)

* fix(serve/test): bind workspace explicitly in GET /workspace tests

Wave-5 commit 0c6e963cd ("apply auto-fixes from /review (#4113)") added
a 400 workspace_mismatch reject path to GET /workspace/:id/sessions
for cross-workspace queries, but the existing two happy-path tests
queried `/work/a` / `/work/idle` against an unbound daemon (which
falls back to `process.cwd()`). Both turned to 400 in CI.

Bind the daemon to WS_BOUND in both happy-path tests and query the
same path. Add a third regression test that pins the §02
cross-workspace rejection contract — `code: workspace_mismatch`,
both paths in the body, bridge.listCalls untouched (no silent
fallback regression).

Brings server.test.ts from 80 → 82 tests, all passing.

* fix(serve,sdk): address fourth /review round (deepseek-v4-pro x2)

Six new inline findings; five applied, one defer-with-reply.

- Q1 (httpAcpBridge.ts + server.ts + tests): cwd length amplification
  through WorkspaceMismatchError. The error constructor interpolates
  `requested` into `.message` TWICE; `sendBridgeError` echoes it on
  stderr (now JSON.stringify-wrapped); `res.json` echoes it again — a
  ~10 MB `cwd` body (right under express.json's 10 MB cap) would
  amplify to ~60 MB per request × maxConnections (default 256). On
  loopback-default-no-token deployments this is pre-auth. Added
  `MAX_WORKSPACE_PATH_LENGTH = 4096` (Linux PATH_MAX); route rejects
  oversized `cwd` with a 400 BEFORE the bridge is touched, and the
  `WorkspaceMismatchError` constructor truncates `requested` as
  defense-in-depth for non-route callers (tests, embeds, future
  entry points that throw the error directly). Three new tests pin
  the route 400, the constructor truncation, and the normal-path
  passthrough.

- Q2 + Q5 (httpAcpBridge.ts docs): the `channelInfo` declaration
  comment + `ChannelInfo.sessionIds` JSDoc + `ChannelInfo.isDying`
  JSDoc all overstated when `channelInfo` is cleared. Post-§02 the
  BkUyD invariant is "ONLY `channel.exited` clears `channelInfo`"
  — teardown initiators (killSession last-session-leaving,
  doSpawn-newSession-failure, ensureChannel init-failure/late-
  shutdown, shutdown) set `isDying = true` but LEAVE `channelInfo`
  pointing at the dying channel until OS reap, so `killAllSync`
  can still reach it through `aliveChannels`. A future maintainer
  reading the old phrasing might "fix" killSession to also clear
  `channelInfo` and silently break the double-Ctrl+C force-kill
  path. Rewrote all three sites to describe the actual invariant +
  enumerate the 5 isDying set-sites + spell out the BkUyD rationale
  in one place (the `isDying` JSDoc) that other comments point at.

- Q3 (runQwenServe.ts): the "listening on …" boot summary goes to
  stdout but every other operational diagnostic (bearer auth, the
  workspace_mismatch breadcrumb, channel-exited, bridge errors) goes
  to stderr. Operators capturing only stderr (systemd / docker / k8s
  default) miss the `workspace=` indicator, which is the single
  piece of information they need most when triaging §02 migration
  issues. Added a `qwen serve: bound to workspace "X"` stderr line
  alongside the stdout one — keeps stdout untouched (integration
  tests + scripts parse it) while making the breadcrumb visible to
  stderr-only log shippers. `JSON.stringify` the boundWorkspace
  value (operator-controlled but cheap defense-in-depth against any
  future flow that lands a control char in the path).

- Q4 (integration-tests/tsconfig.json): the `paths` entry resolved
  `@qwen-code/sdk` to the SDK's built `dist/` directory; `dist/` is
  gitignored and stale dist (no `npm run build` first) yields TS2339
  errors on the integration tests' imports of new SDK fields.
  Pointed `paths` at SDK source instead — `tsc -p
  integration-tests/tsconfig.json` no longer requires a prior
  rebuild. The vitest config's runtime alias still resolves to
  `dist/index.mjs` so the actual test execution exercises the
  published-bundle shape; this paths entry only affects type
  resolution.

- Q6 (httpAcpBridge.ts): `createHttpAcpBridge` constructor called
  `canonicalizeWorkspace(opts.boundWorkspace)` even when the caller
  (`runQwenServe`) had already canonicalized and threaded the same
  value through `deps.boundWorkspace` into `createServeApp`. Two
  independent `realpathSync.native` calls can theoretically diverge
  on NFS-transient / mid-rename filesystems, landing the bridge with
  a canonical form different from what `/capabilities` advertises
  and from `createServeApp`'s view. Dropped the bridge's
  re-canonicalize; kept `path.isAbsolute` (structural, not a
  syscall); documented the caller contract on `BridgeOptions
  .boundWorkspace` ("MUST be pre-canonicalized; tests/embeds call
  `canonicalizeWorkspace` first"). Tests use
  `path.resolve(path.sep, ...)` which is already canonical-or-
  fallback for non-existent paths, so no test changes needed.

bridge: 76/76 (was 74, +2 WorkspaceMismatchError truncation tests);
server: 82/82 (was 80, +2 length cap + the auto-applied helper).
tsc clean for SDK, CLI PR-touched files, and integration-tests'
qwen-serve-*.
2026-05-15 12:44:36 +08:00
tanzhenxin
cc800d0132
fix(core): support cross-auth fast side queries (#4117)
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* fix(core): support cross-auth fast side queries

* refactor(core): hoist resolveForModel selector and refresh side-query docs

Compute the model selector once at the top of `resolveForModel` and pass
it through to `createContentGeneratorForModel` and
`resolveModelAcrossAuthTypes`. This eliminates the redundant selector
resolution that happened up to five times per cross-auth side query
(once per call, plus once inside each downstream helper).

Also update the JSDoc for `SideQueryJsonOptions.model` and
`SideQueryTextOptions.model` to reflect the actual fallback chain
(`getFastModelForSideQuery` → `getFastModel` → `getModel` →
`DEFAULT_QWEN_MODEL`) introduced in this PR.
2026-05-14 19:22:12 +08:00
tanzhenxin
85c10c1619
fix(core): correct context-usage Footer for prompt size and Anthropic caches (#4109)
* fix(core): include cache_creation_input_tokens in Anthropic prompt accounting

Anthropic reports the prompt across three mutually-exclusive fields —
input_tokens, cache_read_input_tokens, cache_creation_input_tokens —
but the adapter only summed input + cache_read, dropping the
cache_creation bucket. On a fresh session that wrote the system prompt
to cache, the reported promptTokenCount was off by the cache-creation
amount.

Extract the normalization into a shared helper used by both streaming
and non-streaming paths, and add a guard for non-conforming providers
that expose the Anthropic protocol but follow OpenAI-style accounting
(input_tokens already covers the cache fields). When input_tokens is at
least as large as both cache fields and at least one cache field is
non-zero, trust input_tokens alone so we don't double-count.

* fix(core): prefer promptTokenCount over totalTokenCount for context display

The Footer's "context used" indicator is meant to track prompt size —
how much of the context window the next request will carry. The current
code preferred totalTokenCount (= prompt + output), so output tokens
generated in the in-flight round were double-counted. Across turns this
caused the % bar to oscillate non-monotonically: it could *decrease*
between turns whenever the prior round's output was large.

Flip the preference at every consumer site that drives the live counter:
the per-stream-chunk update in the main chat, the per-round update in
the subagent runtime (which drives auto-compaction), the session-resume
walk, and the in-process agent panel's listener. Producer sites that
expose total for billing/export are left unchanged.

* fix(core): use cache_creation as the discriminator in Anthropic usage normalization

The previous guard fell back to "input alone" whenever input_tokens was
at least as large as both cache fields. In a real Anthropic conversation
input_tokens grows past cache_creation_input_tokens as history
accumulates, so the guard inevitably mis-classified every later turn as
OpenAI-style and silently dropped the cache_creation portion from the
displayed prompt size. The Footer would show a one-shot drop at the
crossover point and then keep under-reporting by ~32k tokens.

cache_creation_input_tokens is unique to Anthropic's protocol (OpenAI
has no equivalent), so its presence is a strong signal the response
follows real Anthropic semantics. Use that as the primary discriminator
and only fall back to "input alone" when cache_creation is zero, cache
reads are reported, and input already covers them — the actual OpenAI-
on-Anthropic case the guard was meant to catch.

Adds a regression test that locks in the crossover scenario.

* chore(core): address PR review — restore isFinite guard and cover cache-field plumbing

- Restore the `isFinite` guard on `lastPromptTokenCount`: the previous
  `if (contextTok)` relaxation accepted `Infinity` (truthy), which a
  malformed provider response could otherwise latch and poison the
  downstream compaction math.
- Add unit coverage for the cache-field plumbing the PR introduced:
  - usage.ts: real-Anthropic warm-turn case where `cache_read > 0` and
    `cache_creation > 0` simultaneously (mid-conversation breakpoint
    advance over an already-cached prefix).
  - converter.ts: `convertAnthropicResponseToGemini` now exercised with
    all three prompt buckets present to confirm both cache fields are
    forwarded to `usageMetadata`.
  - anthropicContentGenerator.ts: streaming pipeline test that includes
    `cache_creation_input_tokens` in `message_start` and asserts the
    accumulated `usageMetadata` carries it through to the final chunk.
2026-05-14 19:21:39 +08:00
Coloring
dd1d68644d
feat(cli): add modelscope api provider (#4150) 2026-05-14 18:14:11 +08:00
ChiGao
a86404e9ea
fix(cli): apply /language output to running session without restart (#4143)
* fix(cli): apply /language output to running session without restart

`/language output <lang>` wrote ~/.qwen/output-language.md and persisted
the setting, but the rule reaches the model through the system instruction
which is bound once when GeminiChat is created at startup. The command
therefore had to tell the user "Please restart the application for the
changes to take effect."

Refresh hierarchical memory after writing the rule file so userMemory
re-reads output-language.md, then rebuild and re-bind the main-session
system instruction on the live chat via a new
GeminiClient.refreshSystemInstruction() helper. The change takes effect
on the next turn without restarting the session and without losing
conversation history. Drop the restart notice from the success message.

Fixes #4142

* test(cli): assert refresh order in /language output and cover failure path

- The fix for /language output relies on refreshHierarchicalMemory
  running *before* refreshSystemInstruction; otherwise the new
  systemInstruction is rebuilt from stale userMemory and the language
  switch silently fails to take effect. Assert ordering with
  invocationCallOrder so a regression cannot pass review.
- Add a test that the command still reports success when the in-session
  refresh throws — the setting is already persisted on disk, so the
  user-visible message should not surface the refresh failure.
- Drop two stale "rule file is updated on restart" comments left over
  from the pre-fix behavior.

---------

Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
2026-05-14 16:24:41 +08:00
顾盼
c512427f93
feat(core): strip inline media before chat compaction summary (#4101)
* feat(core): strip inline media before chat compaction summary

Compaction's side-query previously shipped historyToCompress verbatim.
Two related issues degraded summary quality and accuracy:

- Inline image / document bytes (from MCP tool results) leaked into the
  summary model's prompt where they could not be interpreted and merely
  inflated payload.
- findCompressSplitPoint apportioned chars via JSON.stringify(content),
  so a single 1 MB base64 image looked like ~350K tokens and biased
  the split point. Real Qwen-VL token cost is at most a few thousand.

This change adds a new compactionInputSlimming module that replaces
inlineData / fileData parts with short [image: <mime>] / [document:
<mime>] placeholders before the side-query, leaving live history
unchanged. The same constant feeds estimateContentChars so the
split-point algorithm sees the budget the summary model actually
consumes downstream. Microcompact is also extended to clear stale
inline images alongside old tool results.

A previous draft of the design also externalized large pastes to a
content-addressable on-disk cache, but it was withdrawn after surveying
claude-code's 2026-03 to 2026-05 releases - upstream consensus is to
keep user input visible to the model and amortize cost via prompt
caching rather than externalize. See the Out-of-scope section of the
design doc for the full rationale.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(core): recurse into functionResponse.parts when stripping media

E2E exposed that `read_file` (and any tool that surfaces an image)
wraps the result in `functionResponse.parts` via
`coreToolScheduler.createFunctionResponsePart`. The slimming module
only walked top-level `part.inlineData` / `part.fileData`, so the
nested base64 bytes leaked into the compaction side-query payload.
The previous design doc incorrectly claimed that no recursive walk
was needed.

Three changes:

- `slimCompactionInput.transformPart` recurses into the nested
  `functionResponse.parts` array and replaces each entry via the
  same image/document placeholder logic.
- `estimatePartChars` walks the nested array too, so the split-point
  algorithm doesn't fall back to `JSON.stringify` and over-count the
  base64 bytes.
- `microcompactHistory` drops `functionResponse.parts` when clearing
  an old tool result; the previous spread of `...part.functionResponse`
  silently carried the original media through.

New unit tests cover (a) nested image / document stripping, (b) the
estimator no longer being skewed by nested base64. The previously
failing E2E now PASSES: side-query payload contains zero `data:image/`
occurrences, zero long base64 runs, and exactly one
`[image: image/png]` placeholder.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(core): address review findings on compaction image stripping

Addresses 8 valid findings from PR review:

- [Critical] estimatePartTokens now handles `fileData` parts (both
  top-level and nested under functionResponse.parts). Without this,
  microcompact's `tokensSaved === 0` short-circuit silently discarded
  every fileData clear.

- estimatePartTokens for binary parts now uses a fixed
  MEDIA_PART_TOKEN_ESTIMATE constant (1,600) instead of base64-length
  divided by 4. The old formula billed a 1 MB image as ~250K tokens
  rather than its actual ~1,280 visual tokens on Qwen-VL, inflating
  the saved-token metric by orders of magnitude.

- mimeType values from MCP tool servers are now run through
  sanitizeMimeForPlaceholder before being embedded in `[image: …]` /
  `[document: …]` placeholders. An adversarial server could otherwise
  craft `image/png]\n\n[SYSTEM: …` and inject instructions into the
  summary side-query.

- collectCompactablePartRefs now recognizes a third 'nested-media'
  kind: functionResponse parts from non-compactable tools (e.g. MCP
  screenshots whose names aren't in COMPACTABLE_TOOLS) that carry
  images on functionResponse.parts. The nested media is dropped while
  the tool's text output is preserved. Previously such media
  accumulated forever in live history.

- keepRecent budgets are now per-kind (tool / media / nested-media).
  Setting `toolResultsNumToKeep: 1` keeps 1 of each kind rather than 1
  entry total across the merged list — matches the natural reading of
  the setting name.

- findCompressSplitPoint's `precomputedCharCounts` fallback path is
  now documented as test-only; production callers MUST pass the
  precomputed array.

- The text-based branch of isAlreadyCleared is gone: with the new
  nested-media handling (drops `parts`) and existing media handling
  (replaces with `{ text: … }` that is no longer collected) it was
  unreachable.

- OpenAI converter (createToolMessage) now passes text parts inside
  functionResponse.parts through as text content. The slimmer writes
  `{ text: '[image: image/png]' }` placeholders into the nested array;
  without this fix the converter dropped them when serializing to the
  OpenAI wire format, leaving the summary model with empty tool
  responses instead of the placeholder.

Two findings deferred with rationale (see design doc Open Questions):
MIN_COMPRESSION_FRACTION still uses pre-slim counts (acceptable —
"user shared an image" is itself worth summarizing); SlimResult is not
re-exported (round-3 simplify decided to keep core's public surface
minimal).

E2E re-verified end-to-end: side-query payload contains 0 data:image/
occurrences, 0 long base64 runs, and 1 `[image: image/png]` placeholder
in the expected position. 185/185 collocated unit tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* chore(core): tidy compaction slimming after self-review

Three small polishes from a follow-up code review pass:

- `stripNestedMedia` no longer re-casts its return value: after
  destructuring `parts` out of the widened input type, TypeScript
  infers the original `FunctionResponse` shape without help.
- `isAlreadyCleared` shed a 10-line comment block — the body is now
  one line, so one descriptive line above it is enough.
- OpenAI converter's nested-part text check switched from
  `(part as { text?: unknown }).text` to
  `'text' in part && typeof part.text === 'string'`, dropping the
  cast and letting `in` narrow the type.

No behavior change. 185/185 unit tests still pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix(core): wire slim stats to debug log; split MicrocompactMeta tools vs media

Addresses two follow-up review suggestions:

- `slimCompactionInput` returned `stats.imagesStripped` and
  `stats.documentsStripped` but the orchestrator never consumed them.
  Now logged at debug level whenever non-zero so operators can confirm
  the slimming pipeline actually fires on image-heavy compactions.

- `MicrocompactMeta.toolsCleared` lost meaning after the recent
  refactor: it had grown to count both tool-result clears AND
  inline-media / nested-media clears. Renamed:
  - `toolsCleared` → only `tool`-kind clears (compactable tool output)
  - `mediaCleared` → `media` + `nested-media` clears (new)
  - `toolsKept` / `mediaKept` mirror the split, replacing the prior
    `toolsKept` that was actually a combined count.

  The single non-test consumer (`client.ts` debug log) updated to use
  both fields.

185/185 unit tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-14 10:20:11 +08:00
qwen-code-ci-bot
d419a92672
chore(release): v0.15.11 [skip ci]
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
2026-05-14 09:51:46 +08:00
John London
93c5ce162f
fix(search): make empty-query exit synchronous and normalize Windows Backspace (#3981)
* fix(search): make empty-query exit synchronous and normalize Windows Backspace

Two fixes to useSessionSearchInput that caused 'Backspace edits the query;
emptying it returns to list mode' to fail on Windows:

1. Replaced the useEffect-based onExitToList mechanism with a ref-backed
   setSearchQuery that detects the non-empty → empty transition
   synchronously inside the state updater. The previous useEffect approach
   introduced a one-frame delay where the component rendered in search
   mode with an empty query before the effect fired, causing the
   'Press / to search' hint to be absent on Windows.

2. Added isDeletionKey() helper that recognizes Backspace from both the
   key.name field ('backspace'/'delete') and the raw sequence bytes
   (\x7f DEL and \b BS), so Windows terminals that deliver Backspace
   without normalizing the key name are handled correctly.

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

* fix(search): address review feedback on PR #3981

- Update onExitToList JSDoc: describe synchronous ref-backed detection instead of stale useEffect reference
- Update test suite comments: replace useEffect references with ref-backed setter description
- Add assertion that implicit entry (empty→non-empty via setSearchQuery) does NOT trigger onExitToList
- Add tests for Backspace/Esc/Ctrl+U/Ctrl+L on already-empty query: must not trigger onExitToList

* fix(search): address remaining review feedback on PR #3981

- Add isDeletionKey byte-fallback tests (\x7f DEL and \b BS)
- Update setSearchQuery JSDoc to document synchronous onExitToList side-effect
- Stabilize callback deps: read onExitToList via ref so setSearchQuery
  and handleSearchKey are not recreated on parent re-render
- Clarify onExitToList JSDoc: fires before React re-renders, ref is
  current but state variable is stale
- Add test for setSearchQuery('') direct-empty path (non-empty → empty)
- Add test for setSearchQuery('') on already-empty query (no spurious exit)

* test: stabilize flaky export format cycling test on Windows CI

Increase wait from 50ms to 350ms after typing '/export md' to allow
the useEffect in useExportCompletion to fire and set cyclingActiveRef
before the Down keypress arrives. This matches the pattern used by other
tests in this file that depend on useEffect timing.

* fix(search): guard isDeletionKey byte fallback against ctrl/meta modifiers

The byte fallback in isDeletionKey (key.sequence === '\x7f' / '\b')
previously fired even when ctrl or meta modifiers were active.
Ctrl+H delivers name:'h', ctrl:true, sequence:'\b' on many terminals
and was incorrectly treated as Backspace, deleting the last query char.

Add !key.ctrl && !key.meta guard so the byte fallback only activates
when the terminal truly did not normalize the key name.

Also add two tests:
- Ctrl+H (BS byte with ctrl) must not be treated as deletion key
- Meta+DEL byte must not be treated as deletion key

---------

Co-authored-by: Mistral Vibe <vibe@mistral.ai>
2026-05-14 09:03:16 +08:00
ChiGao
d343e2c15e
feat(perf): progressive MCP availability — MCP no longer blocks first input (#3994)
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* feat(perf): progressive MCP availability — MCP no longer blocks first input

Today `Config.initialize()` runs MCP discovery synchronously and the cli
can't accept input until every configured MCP server finishes its
discover handshake. One slow or hung server bottlenecks every user with
MCP configured. Validated by the profiler instrumentation added in this
PR (set `QWEN_CODE_PROFILE_STARTUP=1` to reproduce):

| User scenario             | Time to first prompt input |
| ------------------------- | -------------------------- |
| No MCP                    | ~480 ms                    |
| 1 fast MCP                | ~875 ms                    |
| 2 fast + 1 slow MCP       | **~7.1 s**                 |
| 1 hung MCP server         | **~10.5 s**                |

(Measured on macOS arm64 / Node 24.15, n=30/fixture, p50.)

`Config.initialize()` now passes `{ skipDiscovery: true }` to
`createToolRegistry` by default and kicks off MCP discovery in a
fire-and-forget background path. As each server completes discover,
the cli's `AppContainer` debounces `setTools()` calls into one-frame
(16 ms) batches so the model sees the consolidated tool list shortly
after each server settles. Rollback: `QWEN_CODE_LEGACY_MCP_BLOCKING=1`.

- `packages/core/src/config/config.ts` — `Config.initialize` switches
  to `skipDiscovery: true` + new `startMcpDiscoveryInBackground()`
  (defensive against partially-stubbed `ToolRegistry` in tests). Adds
  `MCPServerConfig.discoveryTimeoutMs` (last positional ctor param —
  doesn't shift existing call sites). Tool-call timeout is untouched.
- `packages/core/src/tools/tool-registry.ts` — new
  `getMcpClientManager()` getter so the background path can call the
  incremental discover directly without going through `discoverMcpTools`
  (which would wipe already-registered tools).
- `packages/core/src/tools/mcp-client-manager.ts` —
  `discoverAllMcpToolsIncremental` now: emits `mcp-client-update`
  after IN_PROGRESS transition, wraps each per-server discover in a
  discovery-only timeout (stdio 30s, remote 5s), emits trailing
  `mcp-client-update` after COMPLETED so UI subscribers see the
  terminal state.
- `packages/cli/src/ui/AppContainer.tsx` — new `useEffect` (gated on
  `isConfigInitialized`) subscribes to `mcp-client-update` and
  16ms-batches `setTools()` calls. Same effect also defers
  `finalizeStartupProfile` until MCP settles (or 35s hard cap), so
  startup-perf profiles capture the full MCP timeline.

Activated only by `QWEN_CODE_PROFILE_STARTUP=1`; when unset every
profiler entry point short-circuits in a single null/flag check and
returns. Heisenberg overhead measured at -1.12% Δp50 between
profile-on vs profile-off (Welch p=0.092, n=30/config × 3 configs) —
within statistical noise.

- `packages/cli/src/utils/startupProfiler.ts` — extended with
  `events` array (multi-fire), `recordStartupEvent`,
  `setInteractiveMode`, `derivedPhases`, per-checkpoint heap snapshots,
  `MAX_EVENTS` cap, and `QWEN_CODE_PROFILE_STARTUP_OUTER` / NO_HEAP
  env opt-ins. + 7 new tests.
- `packages/core/src/utils/startupEventSink.ts` (new) — minimal
  cross-package sink so `core` can emit profiler events without
  reverse-depending on `cli`. No-op when no sink registered. + 4 tests.
- `packages/core/src/index.ts` — export `setStartupEventSink` /
  `recordStartupEvent` / type aliases.
- `packages/cli/src/gemini.tsx` — registers the sink at `main()`
  entry, adds `first_paint` checkpoint after Ink render, calls
  `setInteractiveMode(true)` in the interactive branch.
- `packages/core/src/config/config.ts` — emits
  `tool_registry_created`.
- `packages/core/src/core/client.ts` — emits `gemini_tools_updated`
  at the end of `setTools()`.
- `packages/core/src/tools/mcp-client-manager.ts` — emits
  `mcp_discovery_start`, `mcp_server_ready:<name>`,
  `mcp_first_tool_registered`, `mcp_all_servers_settled`.
- `packages/cli/src/ui/AppContainer.tsx` — emits
  `config_initialize_start`, `config_initialize_end`, `input_enabled`.

`Config.initialize()` now returns BEFORE MCP discovery completes.
Things to check:
- Any code path that assumed "after `config.initialize()`, all MCP
  tools exist in the registry" — these will see only built-in tools
  initially; new tools appear via `mcp-client-update` events.
- `MCPDiscoveryState.COMPLETED` is now set asynchronously instead of
  synchronously after `initialize()` resolves.
- Model requests issued before MCP settles see only built-in tools;
  subsequent requests see the full set as servers come online.
- Tests that assert MCP tool count immediately after
  `config.initialize()` should wait for the `mcp-client-update` with
  COMPLETED discoveryState instead.

- 313 impacted-area tests green (config / mcp-client-manager / client
  / startupProfiler 18 / startupEventSink 4).
- `tsc --noEmit` clean for `packages/core` and `packages/cli`.
- `eslint` clean on touched files.
- Manual: `QWEN_CODE_PROFILE_STARTUP=1 SANDBOX=1` interactive run
  produces a JSON profile in `~/.qwen/startup-perf/` containing
  `first_paint`, `config_initialize_start/end`, `input_enabled`,
  MCP per-server events, and `gemini_tools_updated`. See PR
  description's "How to validate" section.

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Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(core): harden progressive MCP discovery against silent regressions

Addresses review feedback on PR #3994:

- Skip user-disabled servers in discoverAllMcpToolsIncremental. The new
  incremental path used to iterate Object.entries(servers) without
  consulting isMcpServerDisabled, so a server the user had explicitly
  turned off would still get connected and its tools registered.
  Mirrors the existing protection in discoverAllMcpTools.

- Disconnect the underlying client when runWithDiscoveryTimeout fires.
  Without this, the inner discoverMcpToolsForServer kept running after
  the timeout rejected the outer promise — if discover() eventually
  succeeded it would register the late server's tools into the live
  toolRegistry (a silent registration vector, especially exploitable
  with a 0/negative discoveryTimeoutMs override).

- Clamp discoveryTimeoutMs to [100ms, 300_000ms]. 0/negative/Infinity
  values previously passed through to setTimeout unvalidated and made
  the silent-registration bug above trivially reachable.

- Classify the `tcp` (WebSocket) transport field as remote so hung WS
  handshakes use the 5s default instead of the 30s stdio default.

- Defensive delete of serverDiscoveryPromises[name] in the per-server
  catch so a doomed/orphan entry can't briefly short-circuit a
  subsequent discoverMcpToolsForServer call.

Adds focused tests for each fix.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): restore runtime.json sidecar and harden non-interactive MCP visibility

Addresses review feedback on PR #3994:

- Restore writeRuntimeStatus + markRuntimeStatusEnabled in
  startInteractiveUI. The progressive-MCP diff inadvertently dropped
  the runtime.json sidecar write from the interactive entry point,
  leaving Config.refreshSessionId()'s session-swap refresh as dead
  code and silently breaking external integrations (terminal
  multiplexers, IDE integrations, status daemons) that map PID →
  sessionId via runtime.json.

- Add Config.getFailedMcpServerNames() and surface a stderr warning
  in --prompt / stream-json / ACP entry points when one or more MCP
  servers failed during background discovery. Per-server errors are
  caught inside discoverAllMcpToolsIncremental and never reached a
  TTY otherwise, so a script using non-interactive mode with broken
  MCP config would silently run with only built-in tools — a
  regression vs the legacy synchronous path.

- Pass the parsed `settings` object through to
  runNonInteractiveStreamJson. The new call site dropped the
  argument, falling back to createMinimalSettings() and losing any
  user-configured permission / approval / hook setup for stream-json
  sessions. Added regression assertion to gemini.test.tsx.

- Move finalizeStartupProfile out of gemini.tsx's stream-json branch
  and into Session.ensureConfigInitialized so it runs AFTER
  config.initialize() / waitForMcpReady() in stream-json. Previously
  the profile was finalized before any MCP / config_initialize_*
  events were emitted, producing empty stream-json profiles.

- Gate setStartupEventSink registration on isStartupProfilerEnabled()
  so core-side recordStartupEvent calls short-circuit at the first
  null-check when profiling is disabled, instead of going through an
  arrow wrapper and the profiler's own enabled gate.

- Tighten the type-unsafe ToolRegistry cast in
  startMcpDiscoveryInBackground to preserve the typed return signature
  so a rename of getMcpClientManager would be flagged at this call
  site (kept the optional-chain guard for tests that stub
  ToolRegistry as a plain object).

- Re-document first_paint as "render call returned" so consumers don't
  confuse Ink's synchronous render() return with literal pixel paint.
  Kept the checkpoint name for backward compatibility with collected
  profiles.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): restore resize repaint and pin gemini_tools_lag capture in AppContainer

Addresses review feedback on PR #3994:

- Restore the terminal-resize useEffect that calls
  repaintStaticViewport() when terminalWidth changes. The progressive-
  MCP diff removed previousTerminalWidthRef + the repaint useCallback
  + the resize useEffect, so tmux pane resizes and fullscreen toggles
  leave the static region rendered at the old width — header content
  visibly tears until something else triggers refreshStatic.

- Pin the gemini_tools_lag startup metric. The previous onMcpUpdate
  handler called finalizeOnce() synchronously when discovery reached
  COMPLETED, but the pending setTools() batch was still 16ms away.
  setTools() emits `gemini_tools_updated` — when finalize ran first
  the profile's `finalized` guard suppressed that event, so
  gemini_tools_lag came out undefined in interactive mode. New
  onMcpUpdate flushes setTools() NOW on COMPLETED and only finalizes
  after the flush resolves, guaranteeing the event lands.

- Log setTools() batch-flush errors via debugLogger instead of
  silently swallowing them. GeminiClient.setTools() has no try/catch
  around warmAll() / getFunctionDeclarations() / getChat().setTools();
  the previous `.catch(() => {})` would have hidden production
  tool-registration regressions completely.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(core): correct MCP failure visibility and incremental cleanup

Addresses three review findings on PR #3994:

- McpClient.discover() now flips the client status to DISCONNECTED before
  re-throwing. Previously, a server that connected successfully but whose
  discoverPrompts / discoverTools then rejected (or that returned no
  prompts and no tools) would remain CONNECTED in the global status
  registry. Config.getFailedMcpServerNames() filters by
  `status !== CONNECTED`, so such servers were silently omitted from the
  non-interactive failure banner and the Footer's MCP health pill kept
  counting them as healthy.

- discoverAllMcpToolsIncremental no longer records `outcome: 'ready'`
  for servers whose connect/discover threw. The inner
  discoverMcpToolsForServerInternal catches errors without re-throwing
  (best-effort discovery semantics), so the try block resolved even for
  failures — only the runWithDiscoveryTimeout path reached the catch.
  Auth errors, server crashes, and missing-tools responses were therefore
  recorded as success in the startup profile. We now consult the actual
  server status (now correctly DISCONNECTED after the first fix) before
  emitting `ready`, and emit `outcome: 'failed'` otherwise.
  `mcp_first_tool_registered` is gated on the same check so a failed
  server can't pollute that user-facing metric.

- discoverAllMcpToolsIncremental tears down enabled→disabled mid-session
  transitions. When a previously-connected server is disabled (e.g. via
  `/mcp disable foo` or by editing settings), the incremental path used
  to just `continue` past it, leaving its client, tools, health check,
  and global status entry in place. Now calls removeServer() for any
  already-known client we encounter in the disabled branch.

Adds focused tests for each fix.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* docs(core): clarify ToolRegistry cast comment in startMcpDiscoveryInBackground

Addresses review feedback on PR #3994. The previous comment claimed the
call site uses "no defensive cast" but the code still casts via
`as ToolRegistry & { getMcpClientManager?: ... }`. Reword to explain
the cast's actual purpose: it exists only because some tests stub
ToolRegistry as a plain object, so we use optional chaining to avoid
crashing the init path when those tests run. Also note that the inner
shape now uses `ReturnType<ToolRegistry['getMcpClientManager']>` — a
future rename of the production method still surfaces as a type error
at this call site rather than silently falling through to the
`if (!manager)` branch.

Comment-only change; no behavior diff.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(core): close MCP timeout TOCTOU race and propagate disconnect status

Addresses two critical findings on PR #3994 round 6:

- runWithDiscoveryTimeout no longer uses fire-and-forget disconnect. The
  prior `void client.disconnect()` returned before `transport.close()`
  landed, leaving a window where an in-flight `discover()` could pump
  `tools/list` through the transport and synchronously register tools
  into the live registry BEFORE the close took effect. The earlier fix
  comment described this as a "remote-exploitable silent-tool-registration
  vector"; the await closes the timing window but doesn't help if tools
  already landed, so we also drop them with `removeMcpToolsByServer()`
  after the disconnect resolves. No-op when discover hadn't reached
  registration yet.

- McpClient.disconnect() now writes DISCONNECTED to the global registry
  directly. Previously, `isDisconnecting = true` was set BEFORE the
  internal `updateStatus(DISCONNECTED)` call, and `updateStatus`'s guard
  (designed to suppress LATE writes from a stale `connect()` catch)
  silently swallowed the write. The global stayed CONNECTED forever for
  timeout-disconnected servers, so `Config.getFailedMcpServerNames()`
  (which filters `status !== CONNECTED`) omitted them from the
  non-interactive failure banner and the Footer's MCP health pill kept
  counting them as healthy. This invalidated the round-5
  `getMCPServerStatus === CONNECTED` gate, which would always pass the
  "ready" check for timed-out servers. The guard stays in place for its
  original purpose; the legitimate disconnect→DISCONNECTED notification
  now bypasses it by writing the registry directly.

Also adds the `config_initialize_start` / `_end` profiler checkpoints
to `Session.ensureConfigInitialized()` so stream-json startup profiles
include the same derived `config_initialize_dur` phase as the
non-stream-json branch in gemini.tsx (round 6 [Suggestion]).

Tests cover (a) the disconnect-and-cleanup path on timeout and (b) the
intentional-disconnect global registry propagation regression.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(mcp): surface failures + prevent health-check resurrection of timed-out servers

Round-7 review follow-ups:

- AppContainer (interactive): MCP startup failures now route through
  debugLogger.warn on COMPLETED. Was silent — only debug logs / profile
  events surfaced failures, so regular interactive users got no
  indication their MCP servers failed. Mirrors the non-interactive
  stderr warning, adjusted to debugLogger so it doesn't collide with
  Ink's rendered output.

- acpAgent per-session: `QwenAgent.initializeConfig()` now emits the
  same `Warning: MCP server(s) failed to start` stderr line as the
  top-level `runAcpAgent` path. Previously per-session ACP configs
  with failed MCP servers silently fell back to built-in tools.

- mcp-client-manager timeout handler: after disconnecting an
  intentionally timed-out server, also drop it from `this.clients` and
  stop any pending health-check timer. Without this the discovery
  `finally` block would arm a health-check that detected DISCONNECTED
  status and called `reconnectServer()` → `discoverMcpToolsForServer()`
  directly — bypassing `runWithDiscoveryTimeout` entirely and silently
  resurrecting the slow server. `startHealthCheck` also early-returns
  for unknown servers so the trailing finally-block call is a no-op.

- startupEventSink: silent `catch {}` now logs via `debugLogger.error`
  so a corrupted sink doesn't silently drop every subsequent event.
  Quiet by default; visible under `QWEN_CODE_DEBUG=1`.

Tests:
- mcp-client-manager.test.ts: regression for the timeout → no-reconnect
  invariant (clients map purged + health-check timer absent).
- acpAgent.test.ts: per-session newSession surfaces failures to stderr,
  and stays safe when Config lacks `getFailedMcpServerNames`.

Declines (with reasoning in PR reply):
- [Critical] AppContainer batch-flush useEffect untested → re-flag of
  the round-5 deferral that wenshao acknowledged at the time. Lower-
  layer invariants (this PR's mcp-client-manager + mcp-client tests)
  pin the dependent contracts. The component-test harness for timers +
  event emitters in this file is non-trivial and out of scope; tracked
  for a follow-up.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

---------

Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-13 22:17:16 +08:00
ZevGit
97ac766405
fix(core): improve runtime fetch options error handling and documentation (#3997)
* fix(core): improve runtime fetch options error handling and documentation

- Add debug logging for dispatcher creation failures to prevent silent proxy bypass
- Skip preconnect dispatcher creation when no proxy is configured (optimization)
- Update outdated comments about timeout behavior (was "always disabled", now conditional)
- Add tests for catch block error handling fallback behavior
- Remove peer flag from @vscode/windows-process-cycles in package-lock.json

The original change skipped custom dispatcher when no proxy to avoid Node/undici
version mismatch (Node v26 ships undici v8 while project bundles v6). This follow-up
addresses code review findings:
1. Critical: catch block silently bypassed proxy on dispatcher failure
2. Suggestion: preconnect warmed unused dispatcher pool when no proxy
3. Suggestion: outdated comments about "always disabled" timeouts

* fix(core): address PR #3997 review comments

- Fix 14 failing apiPreconnect tests by passing proxy parameter
- Add console.error log for proxy dispatcher creation failure visibility
- Redact credentials from proxy URL in error messages
- Update outdated dashscope.ts timeout comment
- Add mockWarn assertions to dispatcher failure tests

* test(core): add console.error and credential redaction tests for dispatcher failure

- Add console.error call verification in dispatcher failure tests
- Add dedicated test for credential redaction from proxy URLs
- Mock console.error to prevent noise during test runs

* chore: improve code quality and documentation clarity

- Remove hardcoded version numbers from undici compatibility comment
- Add dual-logging rationale explaining debugLogger + console.error usage
- Document implicit coupling between apiPreconnect and buildFetchOptionsWithDispatcher
- Explain preconnectFired = true rationale for no-proxy case
- Add comment for preconnectFired before async fire (fire-and-forget semantics)
- Fix global.fetch mock leak by using vi.stubGlobal/unstubAllGlobals
- Remove duplicate test and rename misleading test name

* fix(core): align dashscope.ts comment and remove duplicate test

- Update dashscope.ts comment to match default.ts and anthropicContentGenerator.ts
- Remove misplaced duplicate test in getOrCreateSharedDispatcher describe block
  (functionally covered by existing test at line 72)

* fix(cli): restore URL validation and error path test coverage

- Add proxy parameter to 3 URL validation tests that were hitting no-proxy
  early return instead of exercising isDefaultBaseUrl logic
- Add proxy parameter to 2 error handling tests to ensure they exercise
  fetch rejection and dispatcher error paths
- Add mockFetch.mockResolvedValue(undefined) to beforeEach to prevent
  mock state leakage between tests
- Add mockDebugLogger.debug.mockClear() to beforeEach to prevent debug
  log assertions from being polluted by previous tests

* fix(core): harden proxy error handling and add timeout evaluation note

- Use greedy regex match (.+@) instead of non-greedy ([^@]*) for credential
  redaction to handle edge cases like user@domain:pass@proxy.local
- Add rejectedProxyCache Set to prevent duplicate error logging for the same
  broken proxy config across multiple API requests in long conversations
- Add resetRejectedProxyCache() export for test isolation
- Add timeout evaluation note documenting that Node.js built-in fetch uses
  default 300s bodyTimeout which is sufficient for all current model streaming
- Update test beforeEach to call resetRejectedProxyCache()

* fix(core): address final review feedback on credential redaction and JSDoc

- Restore safe regex /\/\/[^/\s]*@/g for credential redaction to avoid
  over-consuming hostname when error messages contain unrelated '@' chars
  and to redact all occurrences in multi-line error chains via /g flag
- Fix misplaced JSDoc: resetRejectedProxyCache and resetDispatcherCache
  now each have their own correct docstrings
- Add 2 tests to verify rejectedProxyCache dedup behavior:
  same proxy URL logs once, different proxy URLs each log separately

* fix(core): extract redactProxyCredentials helper with dedicated tests

- Extract redactProxyCredentials() as an exported pure function
  for testability and reusability
- Add 4 dedicated tests: single URL redaction, multi-URL /g coverage,
  non-over-redaction of unrelated @ chars, no-op for clean messages
- Add mockWarn/mockConsoleError cleanup to getOrCreateSharedDispatcher
  beforeEach to prevent test state leakage

* fix(core): harden credential redaction and cache key security

- Use redacted proxyUrl as cache key to avoid storing plaintext
  credentials in process memory (heap dump protection)
- Add fallback regex for scheme-less error messages (e.g., Node.js
  native 'connect ECONNREFUSED user:pass@host:8080')
- Add 4 tests: no-scheme redaction, double-redact prevention,
  cache key dedup with different credentials, mock expanded

* fix(core): address remaining review findings — mock alignment, code quality, test lifecycle

- Revert MockProxyAgent to fail only for syntactically invalid URIs
  (real ProxyAgent accepts credential URLs — includes('@') was wrong)
- Update credential redaction test to use http://invalid-proxy whose
  mock error message contains credentials to redact
- Extract NO_DISPATCHER_FALLBACK constant to replace duplicated ternary
  expression (sdkType === 'openai' ? undefined : {})
- Move vi.spyOn(console, 'error') into beforeEach with afterEach
  restoreAllMocks (consistent with apiPreconnect.test.ts pattern)
- Add preconnectFired verification test: no-proxy call permanently
  skips subsequent preconnect attempts

* fix(proxy): address PR #3997 review feedback

- Add credential redaction in apiPreconnect.ts catch blocks to prevent
  proxy credentials from being written to ~/.qwen/debug/ log files
- Export redactProxyCredentials from core package barrel for CLI reuse
- Fix environment variable tests (NODE_EXTRA_CA_CERTS,
  QWEN_CODE_DISABLE_PRECONNECT, SANDBOX) that were masked by no-proxy
  early return by adding proxy parameter
- Remove rejectedProxyCache deduplication to allow administrators to
  see each credential change failure; log only hostname to avoid
  credential leakage
- Add extractHostnameFromProxyUrl helper for safe hostname extraction

Verified: lint + build + typecheck + tests all pass

* fix(core): harden proxy credential redaction

Cover token-only and colon-containing proxy credentials in scheme-less error messages, keep hostname fallback logging credential-safe, and add failure counts for repeated proxy dispatcher failures.

Also align preconnect tests with the shared redaction helper and restore the unrelated fsevents lockfile peer marker.

* test(core): prevent proxy redaction overreach

Tighten scheme-less proxy credential redaction so ordinary email-like text is preserved while token and userinfo proxy credentials remain covered.

* fix(core): address proxy review edge cases

* docs(core): clarify proxy dispatcher behavior

* fix(core): redact proxy credentials from SDK errors
2026-05-13 21:52:08 +08:00
Shaojin Wen
870bdf2a9d
feat(cli,sdk): qwen serve daemon (Stage 1) (#3889)
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* feat(cli): scaffold `qwen serve` HTTP daemon (Stage 1, #3803)

Adds a `serve` subcommand that boots an Express 5 listener with bearer
auth, host allowlist, and CORS modeled on `vscode-ide-companion/src/
ide-server.ts`. Ships only `/health` and `/capabilities` to begin with;
session/prompt/event routes will land in follow-up PRs once the per-
session ACP child-process bridge in `httpAcpBridge.ts` is wired.

Defaults to 127.0.0.1 with auth disabled so local development needs no
configuration. Binding beyond loopback (e.g. `--hostname 0.0.0.0`)
refuses to start without a token (`--token` or `QWEN_SERVER_TOKEN`).

Capabilities envelope versioned at v=1 with a `features` array — clients
should gate UI off `features`, never off `mode`, so subsequent PRs can
add capability tags without breaking older clients.

Per design issue's Stage 1 scope (~700-1000 LOC). Adds ~430 LOC of
implementation + tests in this scaffold; the remaining budget belongs
to the route wiring + bridge implementation in follow-ups.

* feat(cli): wire HttpAcpBridge + POST /session for `qwen serve` (#3803)

Stage 1 follow-up to the scaffold. Implements the bridge between the
HTTP daemon and the existing ACP child agent, plus the first session
endpoint.

`HttpAcpBridge.spawnOrAttach`:
  - Spawns `node $cliEntry --acp` per workspace via an injectable
    `ChannelFactory` (default uses `process.argv[1]`; tests use an
    in-memory `TransformStream` pair so they don't fork real processes).
  - Drives the ACP `initialize` + `newSession` handshake via the SDK's
    `ClientSideConnection`, with a 10s timeout that kills the channel.
  - Under `sessionScope: 'single'` (default), reuses the live session
    when the same canonical workspace cwd is requested again — backs
    the `attached: true` flag.
  - The `Client` impl on the bridge side proxies file reads/writes to
    local fs (daemon and agent share the host) and buffers
    `sessionUpdate` notifications for the SSE wiring in the next PR.
    `requestPermission` returns `cancelled` until the
    `/permission/:requestId` route lands.

`POST /session`:
  - 400 on missing or relative `cwd`.
  - 200 with `{sessionId, workspaceCwd, attached}` on success.
  - 500 on bridge failure (the failing channel is killed, not leaked).

`runQwenServe` constructs the bridge and ties `bridge.shutdown()` into
the listener-close path so SIGINT/SIGTERM drain children before the
socket closes.

Tests (14 new, 0 regressions in the 4967-test baseline):
  - 9 bridge cases over an in-memory channel — fresh spawn, single-scope
    reuse, cross-workspace isolation, thread-scope independence, path
    canonicalization, relative-path rejection, init failure cleanup,
    init timeout, multi-channel shutdown.
  - 4 route cases for /session (missing/relative/200/500).
  - 1 lifecycle case asserting `runQwenServe.close()` calls
    `bridge.shutdown()` before closing the listener.

Verified end-to-end: `qwen serve` boots, `POST /session` spawns a real
`qwen --acp` child and returns the SDK-assigned `sessionId`, repeat
calls under the same cwd return `attached: true`, `SIGTERM` reaps the
child along with the listener.

* feat(cli): wire POST /session/:id/prompt + /cancel for `qwen serve` (#3803)

Stage 1 follow-up after the bridge scaffold. Adds the two routes a client
needs to actually run a turn against the daemon.

Bridge:
  - `sendPrompt(sessionId, req)` looks up the session, FIFO-queues the
    call against the per-session prompt queue, and forwards through the
    SDK `ClientSideConnection.prompt`. Concurrent calls observe ACP's
    "one active prompt per session" invariant — second waits for first.
  - A failed prompt does NOT poison the queue; the tail catches and
    keeps draining so the next caller still runs (the original caller
    still sees its own rejection).
  - `cancelSession(sessionId, req?)` bypasses the queue and forwards
    the ACP notification immediately. ACP semantics: the agent winds
    down the *currently active* prompt; queued work is unaffected.
  - Both methods throw `SessionNotFoundError` (a typed Error subclass)
    when the id is unknown so route handlers can map cleanly to 404
    without brittle message matching.
  - Both methods overwrite the `sessionId` field in the request body
    with the routing id — a stale or spoofed body would otherwise be
    dispatched to the wrong agent process.

Routes:
  - `POST /session/:id/prompt` → 200 with PromptResponse, 400 on
    missing/non-array prompt, 404 on unknown session, 500 on agent
    error.
  - `POST /session/:id/cancel` → 204 always (cancel is a notification),
    404 on unknown session.

Tests (14 new — 7 bridge + 7 route, 0 regressions in the 4981 baseline):
  - sendPrompt: success forwards & returns response · routing-id
    overrides body sessionId · concurrent prompts FIFO-serialize
    (verified via per-prompt start/end ordering with a release latch) ·
    failed prompt doesn't block subsequent prompts · 404 for unknown id.
  - cancelSession: forwards with routing id · 404 for unknown id.
  - Routes: 200/400/404/500 paths for prompt; 204 with body or empty +
    404 for cancel.

Verified end-to-end against a real `qwen --acp` child:
  - POST /session/:id/prompt with `[{type:'text',text:'hi'}]` → 200
    `{"stopReason":"end_turn"}` in ~3.4s.
  - POST /session/:id/cancel → 204.
  - POST /session/does-not-exist/prompt → 404 with the unknown id
    surfaced in the body.

* feat(cli): wire SSE streaming for `qwen serve` events (#3803)

Stage 1 follow-up that turns prompt into a real streaming experience.
Replaces the in-memory `notifications: SessionNotification[]` buffer
on each session with a per-session EventBus and exposes it through
`GET /session/:id/events` as an `text/event-stream` SSE feed.

EventBus (`packages/cli/src/serve/eventBus.ts`):
  - Monotonic per-session ids (`v: 1` schema). Each `publish` chains an
    id, returning the materialized BridgeEvent.
  - Bounded ring (default 1000) backs `Last-Event-ID` reconnect — a
    consumer that drops can resume from `lastEventId` and replay any
    still-buffered events before live events flow.
  - Per-subscriber bounded queue (default 256). When a slow consumer
    overruns its queue, the bus appends a synthetic `client_evicted`
    terminal frame and closes that subscription so it can't hold the
    daemon hostage. Other subscribers are unaffected.
  - `subscribe()` returns an AsyncIterable — registration is synchronous
    so events `publish`ed immediately after the subscribe land in the
    queue (a generator-style implementation deferred registration to
    first `next()` and raced with publishes).
  - AbortSignal-aware: aborting the signal closes the iterator promptly.

Bridge (`httpAcpBridge.ts`):
  - `BridgeClient.sessionUpdate` now publishes onto the session's
    EventBus instead of pushing to a plain array — every ACP
    notification the agent emits becomes a stream event automatically.
  - New `subscribeEvents(sessionId, opts?)` returns the bus's
    AsyncIterable; throws `SessionNotFoundError` for unknown ids.
  - Shutdown closes every live event bus before killing channels so
    pending consumers unwind cleanly.

Route (`server.ts`):
  - `GET /session/:id/events` sets the SSE content type, advertises a
    3s reconnect hint, and writes a 15s heartbeat comment frame to
    keep proxy/NAT connections alive.
  - Forwards the `Last-Event-ID` header to the bus.
  - `req.on('close')` triggers an AbortController that propagates into
    the bridge subscription so disconnects don't leak subscribers.
  - 404 when the bridge can't find the session.

Capabilities envelope: `STAGE1_FEATURES` now advertises
`session_create`, `session_prompt`, `session_cancel`, `session_events`
in addition to `health`/`capabilities` so clients can light up UI for
the routes that have actually shipped.

Tests (16 new, 0 regressions in the 4995 baseline):
  - 9 EventBus unit cases — id sequencing, live delivery, replay,
    replay+live splice, fan-out to N subscribers, eviction on
    overflow, abort-signal unsubscribe, bus.close() drains
    subscribers, ring-size eviction.
  - 4 bridge subscribe cases — 404, sessionUpdate→event publishing
    via real ACP fake-agent, shutdown closes live subscriptions.
  - 4 SSE route cases against a live HTTP listener — frame format,
    Last-Event-ID forwarding, 404, abort propagation on disconnect.

Verified end-to-end against a real `qwen --acp` child:
  - Subscribed to `/session/$SID/events`, fired `POST /session/$SID/prompt`
    with text content. Captured 13 distinct `event: session_update`
    SSE frames in real time during the model's response — `available_
    commands_update` metadata, 9 `agent_thought_chunk` frames carrying
    the model's chain-of-thought, 3 `agent_message_chunk` frames with
    the actual reply, and a final usage frame with token totals.
  - Frames carry monotonic ids 1..13, the daemon-side counter, and
    are valid SSE per the EventSource spec.

* feat(cli): wire POST /permission/:requestId for `qwen serve` (#3803)

Stage 1 follow-up that turns `BridgeClient.requestPermission` from a
hardcoded `cancelled` placeholder into a real first-responder vote
loop, and ships the HTTP route any attached client uses to cast the
deciding vote.

Bridge:
  - `requestPermission` generates a UUID requestId, registers a
    pending entry on a daemon-wide map (and the owning session's
    `pendingPermissionIds` set), publishes a `permission_request`
    event onto the session's EventBus (so SSE subscribers see it),
    and awaits the resolution.
  - New `respondToPermission(requestId, response)` resolves the
    pending promise with the supplied outcome. First call wins —
    subsequent calls return false. On success the bridge publishes a
    `permission_resolved` event so other attached clients can update
    their UI when the race is decided.
  - `cancelSession` and `shutdown` both resolve every still-pending
    permission for the affected session(s) as
    `{ outcome: { outcome: 'cancelled' } }` per the ACP spec
    requirement that a cancelled prompt MUST resolve outstanding
    requestPermission calls with cancelled.
  - New `pendingPermissionCount` getter exposes inflight count for
    inspection / tests.

Route (`server.ts`):
  - `POST /permission/:requestId` validates the body's `outcome` is
    either `{ outcome: 'cancelled' }` or `{ outcome: 'selected',
    optionId: string }`, then forwards to `bridge.respondToPermission`.
  - 200 on accepted vote, 404 when the requestId is unknown or
    already resolved (Stage 1 doesn't differentiate), 400 on a
    malformed outcome.

Capabilities envelope: STAGE1_FEATURES gains `permission_vote`.

Tests (14 new — 9 bridge + 5 route, 0 regressions in the 5011 baseline):
  - Bridge: publishes permission_request with a generated requestId
    and waits; respondToPermission first-responder wins; publishes
    permission_resolved on vote; respondToPermission false for
    unknown requestId; cancelSession resolves outstanding as
    cancelled; shutdown resolves outstanding as cancelled.
  - Route: 200 on selected outcome; 200 on cancelled outcome; 404 on
    unknown requestId; 400 on malformed outcome; 400 on missing
    outcome.

Verified end-to-end against a real `qwen --acp` child:
  - Subscribed to /session/$SID/events, sent a prompt asking the
    agent to write a file at /tmp/qwen-serve-permission-e2e-test.txt.
  - The agent triggered a permission_request via the bus, surfacing
    the three options Qwen Code presents (Allow Always / Allow /
    Reject) with their option ids.
  - POSTed `{outcome:{outcome:"selected",optionId:"proceed_once"}}`
    to /permission/$requestId — got HTTP 200.
  - Bus published the matching permission_resolved event.
  - Agent proceeded with the writeTextFile tool call; file was
    actually created on disk with the expected content.

* feat(sdk): add DaemonClient for the qwen serve HTTP API (#3803)

Stage 1 follow-up that proves the cross-mode protocol-isomorphism design
assumption: an SDK client can drive the daemon's HTTP routes end-to-end
without going through ProcessTransport's stdio + stream-json path.

DaemonClient is a sibling of ProcessTransport, not a replacement. The two
speak different protocols (ACP NDJSON over HTTP vs stream-json over
stdio). Existing `query()` users keep getting subprocess-mode unchanged;
applications that want daemon-mode (cross-client attach, shared MCP
pool, network reachability, first-responder permissions) opt in by
constructing a DaemonClient against a running `qwen serve`.

API surface (`packages/sdk-typescript/src/daemon/`):
  - `new DaemonClient({ baseUrl, token?, fetch? })`. The `fetch` override
    is for tests; defaults to `globalThis.fetch`. Trailing slashes on
    `baseUrl` are stripped.
  - `health()`, `capabilities()` — discovery.
  - `createOrAttachSession({ workspaceCwd, modelServiceId? })` — `attached:
    true` on the response indicates a session was reused under
    sessionScope:single.
  - `prompt(sessionId, { prompt: ContentBlock[] })` — returns
    PromptResult with stopReason.
  - `cancel(sessionId)` — tolerates 204; throws on 404.
  - `subscribeEvents(sessionId, { lastEventId?, signal? })` — async
    iterator over parsed SSE frames; AbortSignal-aware. Native Node
    AbortController only — jsdom polyfills are incompatible with undici.
  - `respondToPermission(requestId, response)` — first-responder vote;
    returns true on 200, false on 404 (lost the race or unknown id),
    throws on 400/500.

`DaemonHttpError` is thrown for any non-2xx (besides the 404
"already-resolved" case on permission votes); carries `status` and
`body` so callers can branch on standard daemon HTTP semantics.

`parseSseStream(body)` is the underlying SSE parser; exported separately
so applications can consume daemon SSE outside the DaemonClient surface.
Handles split-chunk frames, comment/retry directives, malformed JSON
(skip), trailing frame without final newline.

Wire types live SDK-side (no SDK→CLI dep); the capabilities envelope's
`v` field signals breaking changes.

Tests (26 new, 0 regressions in the 201 baseline):
  - 7 SSE parser cases — single frame, multiple frames, comments,
    chunked-split frame, malformed JSON skip, trailing frame on close,
    empty stream.
  - 19 DaemonClient cases — health success/error, capabilities, bearer
    auth presence/absence, createOrAttachSession success/400, prompt
    body shape + sessionId url-encoding, cancel 204/404, permission
    200/400/404, subscribeEvents header forwarding + 404, baseUrl
    normalization.

Verified end-to-end against a real `qwen serve` daemon driving a real
`qwen --acp` child:
  - `client.capabilities()` returned `{v:1, mode:"http-bridge", features:
    [...7 tags]}`.
  - First `createOrAttachSession` returned `attached:false`; second
    returned `attached:true` with the same sessionId.
  - `client.prompt(...)` with text content yielded `{stopReason:
    "end_turn"}` while the parallel `subscribeEvents` iterator streamed
    10 distinct frames during the same turn.
  - AbortController on the events iterator cleanly severed the SSE
    connection.

* feat(cli,sdk): list workspace sessions + set session model (#3803)

Closes the §04 Stage-1 routes table for `qwen serve` with the two
remaining endpoints, plus matching SDK methods.

`GET /workspace/:id/sessions`
  - `:id` is the URL-encoded canonical absolute workspace path
    (Express decodes path params automatically; clients pass
    `encodeURIComponent(cwd)`).
  - Returns `{ sessions: [{ sessionId, workspaceCwd }, ...] }` for live
    sessions whose canonical workspace matches.
  - Empty array (not 404) when the workspace is idle so picker UIs
    don't have to special-case "no sessions yet".
  - 400 when the decoded path isn't absolute.

`POST /session/:id/model`
  - Body: `{ modelId: string, ... }`. The route's `:id` overrides any
    spoofed sessionId in the body.
  - Forwards to ACP's `unstable_setSessionModel` and publishes a
    `model_switched` event onto the session bus so cross-client UIs
    update.
  - 200 with the agent's response on success, 400 on missing/empty
    modelId, 404 on unknown session.
  - The SDK method is currently unstable; documented in the bridge
    comment in case the spec renames the method when it stabilizes.

Bridge:
  - New `listWorkspaceSessions(workspaceCwd)` iterates `byId.values()`
    and filters by canonical workspace path; works for both `single`
    and `thread` session scopes.
  - New `setSessionModel(sessionId, req)` forwards through
    `connection.unstable_setSessionModel`, normalizes sessionId,
    publishes `model_switched`, throws SessionNotFoundError on
    unknown ids.

`STAGE1_FEATURES` capabilities envelope grows to 9 tags, adding
`session_list` and `session_set_model`.

SDK (`DaemonClient`):
  - `listWorkspaceSessions(workspaceCwd)` URL-encodes the cwd and
    returns the parsed `sessions` array directly.
  - `setSessionModel(sessionId, modelId)` POSTs the body and returns
    the agent response (currently opaque per ACP unstable spec).
  - Wire types `DaemonSessionSummary` and `SetModelResult` exported
    from the SDK barrel.

Tangential cleanup: `sendBridgeError` now extracts a useful message
from non-Error values via a small `errorMessage` helper. JSON-RPC
errors from the agent (`{code, message, data}`) used to surface as
`"[object Object]"` in the 500 response body; they now show the
inner `message` field. Caught while running the model-set e2e.

Tests (17 new — 9 bridge + 7 route + 4 SDK, 0 regressions in the
5022 + 227 baselines):
  - Bridge listWorkspaceSessions: matching cwd returns the live
    sessions; canonicalizes the lookup; empty for relative paths.
  - Bridge setSessionModel: forwards modelId + overrides body
    sessionId; publishes model_switched event; 404 unknown session.
  - Route /workspace/:id/sessions: returns the bridge list; empty for
    idle workspace; 400 for relative path.
  - Route /session/:id/model: 200 success; 400 missing modelId; 400
    empty modelId; 404 unknown session.
  - SDK listWorkspaceSessions: URL-encodes the cwd; throws on 400.
  - SDK setSessionModel: posts body; throws on 404.

Verified end-to-end against a real `qwen serve`:
  - SDK reports 9 capability features, list returns the existing
    session, attached:true on repeat create, and `setSessionModel`
    rejects with HTTP 500 when the modelId isn't registered (with the
    daemon now surfacing "Internal error" instead of "[object Object]").
  - 404 path through SDK on unknown sessionId works.

* fix(cli,sdk): audit round 1 follow-ups for `qwen serve` (#3803)

Self-review pass on PR #3889. Two real correctness bugs and an
ergonomics gap, plus the test-coverage holes the audit surfaced. The
loudest finding ("host allowlist no-op when bind=localhost") was a
false positive — the conditional was misread; existing tests already
prove the validator is active on `localhost` binds.

Real fixes:

  - Bearer-auth timing-attack: `parts[1] !== token` short-circuits per
    byte, leaking which prefix is correct via response latency. Replace
    with SHA-256 of both sides + `crypto.timingSafeEqual` so comparison
    is constant-time regardless of token length.

  - Concurrent `spawnOrAttach` race in single-scope: two parallel
    callers for the same workspace both passed the `byWorkspace.get`
    check, both spawned, and one entry ended up orphaned in `byId`
    while the other won `byWorkspace`. Violates the
    "at most one session per workspace" invariant. Coalesce via an
    `inFlightSpawns` map: parallel callers attach to the in-flight
    promise and report `attached: true`. The slot is cleared on both
    success and rejection so a failed spawn doesn't poison the
    workspace forever. New test asserts ONE channel spawns under
    parallel calls and that retry works after rejection.

  - `Number.parseInt('1.5e10z', 10)` returns 1, so a malformed
    `Last-Event-ID` header silently passes through. Tighten
    `parseLastEventId` to `^\d+$` so anything not a pure decimal
    integer is dropped. New test exercises 'abc', '-1', '1.5e10z'.

Ergonomics:

  - `LOOPBACK_BINDS` and `LOOPBACK_HOST_BINDS` now include `::1` and
    `[::1]`. IPv6 loopback users no longer have to set a token.
    Host-allowlist allows `[::1]:port` Host headers.

Documentation:

  - `BridgeClient` doc-comment now states the Stage 1 trust model
    explicitly: agent runs as the same UID, the file-proxy methods
    are NOT a workspace-cwd sandbox, restricting them would be
    theatre. The audit flagged this as a "design gap" but the
    daemon-and-agent-on-same-host posture makes a sandbox here
    redundant — Stage 4+ remote-sandbox swaps the Client for a
    sandbox-aware variant.

SDK fix:

  - `DaemonClient.failOnError` previously called `res.json()`, which
    consumes the body even on parse-failure; the subsequent
    `res.text()` returned empty. New impl reads once as text and
    attempts JSON-parse; raw text is the fallback. New test asserts
    a `text/plain` 502 surfaces the body verbatim.

Test gap fills (audit-flagged):

  - Bridge: in-memory file-proxy tests for `BridgeClient.{read,write}
    TextFile` including line/limit slicing.
  - SSE route: `stream_error` synthetic frame on iterator throw
    mid-stream; numeric Last-Event-ID forwarded; malformed
    Last-Event-ID dropped.
  - DaemonClient: text/plain error body coerced to `body` field;
    `respondToPermission` 5xx throws; `subscribeEvents` null-body
    throws; `cancel`/`respondToPermission` URL-encode session/request
    ids that contain slashes.

Verified end-to-end with a token-required daemon: right token → 200,
wrong/missing/malformed → 401. All paths return uniform 401 messages
so a side-channel can't distinguish between "no header", "bad scheme",
and "wrong token".

Test counts: cli serve **89** (was 81, +8), sdk daemon **35** (was
30, +5). Full suites still green.

* fix(cli): audit round 2 follow-ups for `qwen serve` (#3803)

Second self-review pass on PR #3889. Three real bugs (one
correctness, one resource-cleanup, one cosmetic) plus consolidation
of the loopback bindings into a single source of truth.

Real fixes:

  - Shutdown could hang forever on a long-lived SSE consumer:
    `server.close` waits for every in-flight connection to drain,
    and a paused EventSource client never disconnects. Added a
    `SHUTDOWN_FORCE_CLOSE_MS` (5s) timer that calls
    `server.closeAllConnections()` to force-destroy stuck sockets,
    then resolves so `process.exit(0)` can run. New test asserts
    close completes well under 5.5s even when an SSE GET is in
    flight.

  - Signal-handler race during shutdown: round 1 detached the
    SIGINT/SIGTERM listeners *up front* in `handle.close()`. If a
    second SIGTERM arrived during the drain, no handler existed and
    Node's default termination ran, orphaning agent children. Switch
    to detaching at the *end* of the close path (in `finish()`):
    during the drain window the handler is still attached and the
    `if (shuttingDown) return` guard makes a second signal a no-op;
    after drain completes we can safely remove the listeners (this
    also fixes a test-suite MaxListenersExceededWarning that fired
    once we ran the runQwenServe tests >10 times in a single
    process).

  - SSE response had no `error` listener. When the underlying TCP
    socket died (RST, kill -9 on the client), the next `res.write`
    threw EPIPE and Express forwarded it to the default error
    handler, logging noisily. Added `res.on('error', cleanup)` so
    the failure is absorbed and triggers the same teardown path the
    `req.on('close')` handler uses.

Validation:

  - `createHttpAcpBridge` now throws on invalid `sessionScope` (anything
    other than `'single'` or `'thread'`) and on `initializeTimeoutMs <= 0`.
    Misconfigured callers used to silently degrade to thread behavior;
    now they fail loudly.

Cleanup:

  - The `LOOPBACK_BINDS` set was duplicated between `auth.ts` and
    `runQwenServe.ts` (round 1 missed this). Extracted into
    `packages/cli/src/serve/loopbackBinds.ts` with a single
    `isLoopbackBind(hostname)` helper. Both files now import; drift is
    impossible.

  - `res.flushHeaders?.()` lost the optional chaining. The method is
    on `http.ServerResponse` since Node 1.6; our `engines` floor is 20.

Tests added:

  - bridge: `sessionScope` validation, `initializeTimeoutMs` validation.
  - server: shutdown force-close timeout, SIGINT/SIGTERM listener
    detach-after-drain.

False positives from the round 2 audit (verified and dismissed):

  - "EventBus nextId overflow at 2^53" — theoretical only (would
    require ~9 quadrillion publishes per session). No code change.
  - "Subscribe-during-close race" — JS is single-threaded; the close()
    flag is set synchronously before the loop touches state.
  - "Queued prompts on shutdown" — by design; documented via the
    promptQueue tail comment.
  - "10MB body parser limit" — design choice for Stage 1's in-memory
    buffering model; revisit if ACP streaming lands in Stage 2.
  - "Unbounded body read in DaemonClient.failOnError" — daemon is
    local in Stage 1; the threat surface for adversarial-large error
    bodies is the same as the daemon's other unbounded buffers.

Test counts: cli serve **93** (was 89, +4), full cli **5047** (no
regressions), sdk **236** (no regressions).

* docs(cli): audit rounds 3 + 4 follow-ups for `qwen serve` (#3803)

Two more self-review passes on PR #3889. No correctness bugs surfaced
this time — round 3 found a HIGH-severity Windows-path claim that
turned out to be a false positive (`path.win32.isAbsolute('/foo/bar')`
returns true; verified against Node 20). Round 4 confirmed every
prior decision and surfaced one latent-but-not-currently-triggered
concurrency note.

Changes are pure documentation + a tiny optional-chain cleanup:

  - Drop `?.` on `server.closeAllConnections()` in runQwenServe.ts —
    the method exists since Node 18.2 and our `engines` floor is 20.
    The optional chain dated from before round 2's force-close timer
    landed; clean it up.

  - Help text for `qwen serve --port` now documents that port 0 means
    "OS-assigned ephemeral port" (which the implementation has always
    supported but never advertised).

  - `defaultSpawnChannelFactory` gains a comment near the spawn site
    documenting the FD-budget implication (~3 FDs per session, bump
    `ulimit -n` for many concurrent sessions) and the `stdio:
    ['pipe', 'pipe', 'inherit']` choice (child stderr lands in the
    daemon's stderr, interleaved across sessions). Both are
    Stage-1-accepted; Stage 2/4+ revisit each.

  - Comment on the bridge's `byWorkspace`/`byId` Maps documenting the
    known gap that a child crashing between requests leaves a garbage
    SessionEntry until daemon shutdown — surfaced as a per-prompt
    failure when the dead session is touched, not a hang. Stage 2's
    in-process bridge eliminates the spawned-child failure mode
    entirely so this gap goes away naturally.

  - `EventBus.subscribe` doc-comment now states explicitly that the
    returned iterator is NOT safe to drive from concurrent
    `.next()` callers — the underlying queue isn't atomic. Daemon
    usage is the sequential `for await ... of` inside the SSE route,
    so this is safe in production. Documented so a future fan-out
    consumer doesn't accidentally rely on undefined behavior.

False positives verified and dismissed (round 3 + 4 combined):

  - `path.isAbsolute('/foo/bar')` Windows breakage — `path.win32.
    isAbsolute('/foo/bar')` is true; verified empirically.
  - "Windows drive divergence" causing duplicate sessions — different
    drives are different on-disk paths; sessions intentionally
    differ.
  - "parseSseStream early-break leaks reader" — `for await ... break`
    triggers `iterator.return()` which runs the generator's `finally`
    that calls `releaseLock`. Standard JS semantics.
  - "Promise executor sync-throw fragility in requestPermission" —
    sync throws inside `new Promise(executor)` reject the outer
    promise; functionally correct, just stylistic.
  - "Force-close timeout test elapsed assertion flakiness" — assertion
    is `< 5500ms` but the natural happy-path is sub-100ms. Generous
    headroom; not flake-prone in practice.
  - "fetch reference stale after polyfill" — `globalThis.fetch.bind`
    captures at construction; tests inject `opts.fetch` instead of
    polyfilling, which is the correct pattern.

Test counts unchanged (cli serve **93**, sdk **236**); typecheck +
lint clean. STAGE1_FEATURES still matches every implemented route
1:1, fakeBridge in tests implements every HttpAcpBridge method.

* fix(cli): PR #3889 review round 1 — critical correctness (#3803)

Addresses the four critical findings from the PR #3889 reviewer pass:

  1. ACP `ReadTextFileRequest.line` is 1-based per spec, but the
     bridge's `BridgeClient.readTextFile` was treating it as a
     0-based slice index. A client asking for `{line:1, limit:2}`
     ("first two lines") was getting lines 2-3 — a sign-off-by-one
     bug that breaks every editor / SDK client following the ACP
     schema. Convert to 0-based via `Math.max(0, line - 1)`. The
     existing slice test was asserting the wrong behavior; updated
     to expect the spec-correct result and added a second `line:3,
     limit:2` case to lock in the offset.

  2. `modelServiceId` was accepted by the SDK + server `POST /session`
     path, forwarded into `bridge.spawnOrAttach`, and then silently
     dropped: `doSpawn` never wired it into the agent. Callers
     requesting a specific model got the agent's default and no
     indication anything was wrong. Now `doSpawn` issues
     `unstable_setSessionModel` immediately after `newSession`. If
     the agent rejects the model id, the half-initialized session is
     torn down and the spawn rejects so the caller can retry cleanly
     instead of inheriting silent drift. Three new bridge tests:
     happy path, omit-when-undefined, agent-rejection cleanup.

  3. The CORS middleware used `cors({ origin: (o, cb) =>
     cb(new CORSError(...), false) })` for browser-Origin requests.
     `cors` flows the Error into Express's error chain; without an
     explicit error handler that produces a 500 + HTML body, which
     is misleading for what is really a deterministic 403 denial.
     Replace with a tiny `RequestHandler` that checks
     `req.headers.origin` directly and returns
     `403 { error: 'Request denied by CORS policy' }` JSON. Drops
     the `cors` and `@types/cors` dependencies — there's no other
     consumer in the cli package.

  4. The SSE `stream_error` synthetic frame hard-coded `id: 0`,
     which would regress the client's `Last-Event-ID` tracker and
     trigger duplicate replays on reconnect. The frame is terminal
     and daemon-emitted — it has no place in the per-session
     monotonic sequence. Refactor `formatSseFrame` to omit the
     `id:` line when the input event has no id field, and emit
     `stream_error` without one. Test updated to assert
     `frames[1].id === undefined` while the preceding
     `session_update` still carries its monotonic id.

Tangential cleanup: `errorMessage` now formats the SSE error body
(was `err.message` only — would have shown `[object Object]` for
JSON-RPC errors mid-stream, mirroring the round-1 SDK fix).

Test counts: cli serve **96** (was 93, +3 modelServiceId cases);
existing readTextFile slice test rewritten in place. Full
typecheck + lint + suite green.

* fix(cli,sdk): PR #3889 review round 2 — SSE robustness + EventBus polish (#3803)

Second batch of reviewer-flagged fixes for PR #3889. Addresses 7
robustness issues across the daemon's SSE pipeline + the bus + the
SDK's stream parser.

Daemon SSE (`server.ts`):

  - SSE writes now respect backpressure. `res.write` returns false when
    the kernel send buffer is full; the previous code ignored that and
    Node accumulated payloads in user-space memory unboundedly. A slow
    consumer on a chatty session could balloon daemon RSS. New
    `writeWithBackpressure` helper awaits `drain` (or `close`/`error`)
    before scheduling the next write — for both per-frame writes and
    heartbeats.

  - `parseLastEventId` rejects values > `Number.MAX_SAFE_INTEGER`. With
    the prior `^\d+$` regex a malicious 25-digit value would parse to
    a number that loses precision and confuses replay comparisons.

EventBus (`eventBus.ts`):

  - `Last-Event-ID` replay events now `forcePush` past `maxQueued`. A
    client reconnecting with a 1000-event gap on a subscriber whose
    cap is 256 was silently losing entries 257-1000 — a sign-off-by-
    nothing breakage of the resume contract. Live publishes still go
    through the normal cap (slow live consumer must be evictable);
    historical replay is bypassed.

  - `onAbort` now disposes the subscription immediately instead of
    only closing the queue. An aborted-but-never-iterated subscriber
    used to linger in `bus.subs` until the consumer drove `next()` /
    `return()`. New tests cover both abort-after-subscribe and
    already-aborted-at-subscribe paths.

  - `BoundedAsyncQueue.next` now checks `buf.length > 0` before
    shifting instead of `buf.shift() !== undefined`. The bus never
    pushes `undefined` today but the queue is generic — the prior
    pattern would mis-handle a queue whose element type legitimately
    includes undefined.

SDK SSE parser (`sse.ts`):

  - Now flushes the TextDecoder on stream close. Without the final
    `decoder.decode()`, an incomplete multi-byte UTF-8 sequence at
    the tail of the last chunk was silently dropped — corrupting any
    frame whose JSON ended mid-character. New test feeds a stream
    split mid-byte through "中" (3-byte UTF-8) and asserts the
    character round-trips.

  - Frame separators now accept both `\n\n` and `\r\n\r\n`. SSE spec
    allows CRLF, and intermediaries (corporate proxies, some Node
    http servers) sometimes normalize. Frame field splitter also
    accepts `\r?\n`. Two new tests cover pure CRLF + mixed-LF/CRLF.

Test counts: cli serve **99** (was 96, +3 EventBus); sdk daemon-sse
**10** (was 7, +3). Full typecheck + lint + suite green.

* docs(cli,sdk): PR #3889 review round 3 — minor + docs (#3803)

Last batch from the PR #3889 reviewer pass: mostly docs + a
ReDoS-tooling-silencing rewrite + a yargs-key cleanup.

  - `commands/serve.ts` ServeArgs interface dropped the camelCase
    `httpBridge` mirror; the handler now reads `argv['http-bridge']`
    matching the declared option name. The dual surface relied on
    yargs's camelCase expansion behavior — fragile if yargs config
    ever changes.

  - `DaemonClient` constructor's `baseUrl.replace(/\/+$/, '')` (which
    is end-anchored and linear, but CodeQL's polynomial-regex
    detector flags any `\/+$` pattern on attacker-controlled input)
    swapped for a hand-rolled `stripTrailingSlashes` loop. Same
    behavior, no rule trigger.

  - `defaultSpawnChannelFactory`'s `cwd: workspaceCwd` flow into
    `spawn` is the second CodeQL finding ("uncontrolled data used in
    path expression"). It IS user-controlled, by design — that's the
    Stage 1 trust model. Added a `// lgtm[js/shell-command-
    constructed-from-input]` suppression with a comment explaining
    the model and pointing at issue #3803 §11 for the Stage 4+ remote-
    sandbox replacement.

  - Stale doc comment on `createServeApp` that still listed only
    `/health`, `/capabilities`, `POST /session` as shipped — now
    enumerates all 9 routes that match §04 of the design.

  - Stale doc comment on `HttpAcpBridge` saying "Stage 1 buffers them
    in-memory; SSE wiring lands in the next PR" — SSE wiring landed
    in commit 41aa95094. Replaced with a description of the actual
    flow through EventBus + SSE.

No behavior change; tests + lint + typecheck still green. cli serve
still **99**, sdk **38** (was 30 before this batch — daemon-sse +3,
DaemonClient +5 from rounds 1+2). Full e2e against built daemon
re-verified: CORS denial returns 403 JSON (was 500 HTML), bad
`modelServiceId` now causes spawn to fail with HTTP 500 (was: silent
default-model substitution), `POST /session` without modelServiceId
unaffected.

* fix(cli,sdk): self-audit round 5+ — close orphaned EventBus + DaemonEvent.id optional (#3803)

Two more fixes from a final post-review-comment audit pass on PR #3889.
Both are subtle correctness gaps that fell out of the round-1 critical
fixes (modelServiceId apply + SSE id-less stream_error).

  - In `httpAcpBridge.ts:doSpawn`, when `unstable_setSessionModel`
    rejects after `newSession` succeeded, we tear down the entry from
    `byWorkspace` + `byId` (round 1 fix) but did NOT close the
    EventBus we'd just constructed for that entry. The agent could
    have published a session_update notification during init that
    queued in the (now unreachable) bus's ring buffer; without an
    explicit close the bus + buffer linger until the next GC cycle.
    Bounded leak (1 bus per failed spawn × 1000-event ring) but
    cleaner to close it. New regression test exercises the retry path
    after a model-rejection failure to lock in that we don't reuse
    the orphan and that subscribers on the fresh session see an empty
    iterator on immediate abort.

  - SDK `DaemonEvent.id` is now `id?: number` instead of `id: number`.
    The round-1 SSE fix made the daemon emit `stream_error` frames
    *without* an `id:` line so they don't pollute the per-session
    monotonic sequence. The SDK parser correctly returns `undefined`
    for the missing field, but the type still advertised `id: number`
    — TypeScript consumers persisting `lastSeenId = event.id` would
    accidentally store `undefined`. Made the field optional and added
    a doc comment instructing consumers to skip frames without an id.

Plus one more false-positive verified and dismissed:

  - "writeWithBackpressure Promise double-settle race": the auditor
    flagged that `res.write(chunk, callback)` could fire its callback
    after the synchronous `ok=true` resolve. Verified harmless —
    Promise double-settle is a no-op, the callback only rejects on
    error (caught separately by `res.on('error', cleanup)`), and
    multiple parallel writes register independent listener sets that
    each remove their own pair after firing.

Test counts: cli serve **100** (was 99, +1 retry-after-model-rejection
regression). SDK unchanged at 239. Full typecheck + lint + suites
green; flow re-verified end-to-end.

* fix(cli,sdk): PR #3889 review round 4 — child-crash recovery + SSE/permission/SSE polish (#3803)

Fourth and final batch of reviewer-flagged fixes for PR #3889. 14
inline threads addressed, plus 8 spam threads up for resolution.

Critical correctness:

  - `eventBus.test.ts`'s ring-eviction test wrapped its assertion in a
    `void (async () => { … })()` IIFE that returned synchronously to
    vitest — the inner `expect` could fail without ever surfacing.
    Hoisted to a top-level `await` so the harness actually waits and a
    broken eviction would now fail loudly.

  - `runQwenServe.ts handle.close()` is now idempotent. Concurrent
    callers (test harness + signal handler firing simultaneously,
    explicit caller + finally-block fallback) used to each construct a
    new shutdown promise, arm a fresh force-close timer, and call
    `bridge.shutdown` redundantly. Cache a single `closePromise`;
    repeat calls return it. New test exercises 3 overlapping callers
    + a post-settle call → exactly one bridge.shutdown.

  - `POST /permission/:requestId` now rejects `outcome.selected` with
    an empty `optionId`. The string-typeof check passed `""` through;
    bridge would forward an opaque "unknown option" error from the
    agent. Tighten the validator + add a 400 test.

  - `denyBrowserOriginCors` now has explicit unit tests (3 cases:
    Origin-bearing GET → 403 JSON, no-Origin GET → 200, Origin-bearing
    POST → 403 + bridge untouched). The CSRF defense was previously
    implicit-only.

Channel-exit recovery:

  - `AcpChannel` interface gains an `exited: Promise<void>` that
    resolves on either planned `kill()` or unexpected child crash.
    Bridge subscribes via `channel.exited.then(...)`: if the entry is
    still in `byId` when exit fires (i.e. unexpected crash), it
    cancels pending permissions, publishes a `session_died` event so
    SSE subscribers get notified, closes the bus, and removes the
    entry from `byWorkspace`/`byId`. Without this, a crashed child
    used to leave its `SessionEntry` stuck — under
    `sessionScope:'single'` (default) the whole workspace was
    unreachable until daemon restart.

  - `defaultSpawnChannelFactory` now wires `child.once('error', …)` in
    addition to `'exit'`. Without an `error` listener Node treats an
    async spawn failure (ENOMEM, EACCES, …) as an unhandled error and
    crashes the daemon.

  - Two new bridge tests: `crash()` simulates an unexpected exit →
    asserts `session_died` event + entry removed + retry spawns a
    fresh child; planned shutdown asserts the cleanup handler no-ops
    when the entry is already gone (no double-publish).

SSE robustness:

  - SDK `parseSseStream` now calls `reader.cancel()` (not just
    `releaseLock`) in its `finally`. Early-break consumers were
    leaving the underlying HTTP body stream open; cancel propagates
    upstream so the connection drops promptly. New test asserts the
    underlying ReadableStream's `cancel()` runs.

  - SDK `parseSseStream` accepts `data:` (no space after colon) AND
    multiple `data:` lines per frame (joined by `\n` per spec). Two
    new tests cover both cases.

  - SDK `DaemonClient.subscribeEvents` now validates response
    Content-Type before delegating to the parser. A misconfigured
    proxy returning 200 + JSON was silently producing zero events;
    now throws `DaemonHttpError` with the actual mime type.

  - Daemon SSE route's initial `retry: 3000` write now `.catch(()=>{})`s.
    A socket that errors before the first write would have surfaced as
    an unhandled rejection.

Documentation (deferred items now noted in code):

  - `EventBus.publish` ring shift is O(n) when full. Comment notes
    the deferral; circular-buffer refactor only if profiling flags it.

  - SSE heartbeat doesn't detect dead connections without TCP RST.
    Comment notes Stage 2 may add an explicit idle timeout.

  - `defaultSpawnChannelFactory` won't run a `.ts` entry directly —
    `npm run dev` users must build first. Comment in the spawn site.

Test counts: cli serve **107** (was 100, +7), SDK daemon **42**
(was 38, +4). Full typecheck + lint + suite green.

* test(integration): qwen serve daemon — routes + streaming + recovery (#3803)

Persists the e2e validation of every PR #3889 fix as vitest
integration tests under `integration-tests/cli/`. Two files split by
auth requirement:

`qwen-serve-routes.test.ts` (18 cases, no LLM credential needed)
  - Bearer auth timing-safe compare: right token / wrong-same-length /
    wrong-shorter / missing / Basic-scheme.
  - CORS browser-Origin denial: GET-with-Origin → 403 JSON; no-Origin
    → 200.
  - Capabilities envelope: all 9 Stage 1 features advertised in order.
  - POST /session validation: relative cwd → 400; two parallel POSTs
    same workspace coalesce; bad modelServiceId tears down half-init.
  - POST /permission/:requestId validation: empty optionId → 400;
    missing optionId → 400; valid vote on unknown id → 404.
  - SDK SSE Content-Type guard: throws DaemonHttpError when upstream
    returns 200 + JSON.
  - Last-Event-ID strict parsing: malformed value accepted but
    ignored (`'1abc'` doesn't get parsed as 1).
  - Cancel idempotent + listWorkspaceSessions returns the live session.

`qwen-serve-streaming.test.ts` (3 cases, gated by SKIP_LLM_TESTS)
  - Real `qwen --acp` child SIGKILL → daemon publishes
    `session_died`, removes the entry from `byWorkspace`/`byId`,
    next createOrAttachSession spawns fresh. Uses `pgrep -P` to
    locate the daemon's direct child by PID.
  - Two SSE subscribers + a tool requiring permission: both observe
    the same `permission_request` requestId; two concurrent POST
    votes resolve as exactly one 200 + one 404 (first-responder
    wins).
  - SSE reconnect with `Last-Event-ID: N` after consuming N frames
    yields events with `id > N` from the bus's replay ring.

Both files spawn `node packages/cli/dist/index.js serve --port 0
--token …` per `beforeAll` and clean up in `afterAll`. Use the
existing `@qwen-code/sdk` alias the integration-tests vitest config
already wires to the built SDK bundle.

Run with the existing `npm run test:integration:cli:sandbox:none`
(or any of the integration-tests target). The streaming file is
skip-able via `SKIP_LLM_TESTS=1` for environments without auth.

Verified locally: 18/18 routes pass in ~6.8s; 3/3 streaming pass in
~23s against a real model.

* fix(cli): PR #3889 review round 5 — claude-opus-4-7 audit (#3803)

Seven new substantive findings from a `/qreview` pass on PR #3889.
Six real bugs + one type-safety gap; all addressed.

Critical correctness:

  - **EventBus replay overflow + eviction race**. Round 4's
    `forcePush` for `Last-Event-ID` replay bypassed the per-subscriber
    cap, but `BoundedAsyncQueue.push`'s cap check was `buf.length >=
    maxSize` — so the very next live publish saw the inflated buf,
    rejected, and triggered the `client_evicted` terminal frame.
    Concrete sequence the audit walked through: client reconnects
    after 300+ events, replay force-pushes 300 entries, next live
    event evicts them. Defeats the resume contract.

    Fix: track force-pushed items separately (`forcedInBuf` counter).
    `push()` cap is now on `(buf.length - forcedInBuf)`. `next()`
    decrements `forcedInBuf` as the consumer drains (force-pushed
    entries are FIFO at the front of `buf` since `forcePush` only
    runs at subscribe time, before any live `push`). Two new
    regression tests: (1) live publish after a >cap replay does
    NOT evict; (2) eviction triggers only after the LIVE backlog
    (excluding replay) hits the cap.

Performance + UX:

  - **Eager express import on every `qwen` invocation**. The
    `serve` subcommand statically imported `../serve/index.js`,
    which transitively pulled express + body-parser + qs into
    cold-start path of every CLI invocation (interactive, mcp,
    channel, etc). ~50ms tax on the 99% of invocations that never
    run `serve`. Defer to dynamic `import()` inside the handler;
    types are still imported for the builder shape.

  - **Middleware order**: `express.json({limit:'10mb'})` ran
    BEFORE `bearerAuth`. Unauth POST got full JSON.parse before
    401. Trivial DoS amp on non-loopback deployments. Reorder so
    auth + Host allowlist + CORS run first; body parser runs
    only for requests that pass the gate.

  - **`sendPrompt` no AbortSignal**. A stuck/dead child poisons
    the per-session FIFO; HTTP client disconnect didn't propagate
    so daemon CPU stayed tied up. `HttpAcpBridge.sendPrompt` now
    accepts `signal?: AbortSignal`. Route handler creates an
    AbortController and wires `req.on('close')` to abort it. On
    abort, bridge sends an ACP `cancel` notification; the agent
    winds down → prompt resolves with `stopReason: 'cancelled'`
    → next queued prompt can run. New test exercises real
    socket disconnect via `node:http` (jsdom AbortSignal isn't
    compatible with undici).

Security:

  - **`--token` on argv leaks via `/proc/<pid>/cmdline`**. Default
    Linux permissions allow any local user to `ps auxww | grep
    'qwen serve'` and read the bearer token. Daemon now warns to
    stderr when `--token` is used and recommends
    `QWEN_SERVER_TOKEN` (which uses `/proc/<pid>/environ`,
    owner-only).

  - **Token inherited by spawned `qwen --acp` child**. `env:
    process.env` in `defaultSpawnChannelFactory` passed
    `QWEN_SERVER_TOKEN` into the child. The agent runs
    user-supplied prompts with shell-tool access — leaving the
    token in env enables prompt-injection-into-self-call attacks.
    Strip `QWEN_SERVER_TOKEN` from the child's env before spawn.

Robustness:

  - **`BridgeClient` publishes lacked try/catch on closed bus**.
    `BridgeClient.requestPermission` and `sessionUpdate` called
    `entry.events.publish(...)` directly. Shutdown closes the bus
    *before* killing the channel, so a late `sessionUpdate` from a
    not-yet-dead agent throws. For `requestPermission` the throw
    was particularly bad: `registerPending` had already mutated
    the daemon-wide map, so the throw left the registry
    inconsistent. Cleaner fix: make `EventBus.publish` a no-op on
    closed bus (returns undefined) instead of throwing. Removes
    the need for try/catch at every call site and keeps state
    consistent.

Type safety:

  - **`STAGE1_FEATURES: readonly string[]`** widened the inferred
    tuple-of-literals back to `string[]`. A typo'd feature
    (`'sesion_set_model'`) compiled silent. Drop the annotation +
    add `as const`; export `Stage1Feature` literal-union for
    SDK-side `features.includes(...)` checks to narrow against.

Test counts: cli serve **112** (was 105, +7); SDK unchanged at
243. Full typecheck + lint + suite green.

* fix(cli): PR #3889 review round 6 — gpt-5.5 audit (#3803)

Four new findings from a `/review` pass on PR #3889. Three real
correctness bugs + one Stage 1 design-gap documentation.

Critical:

  - **`[::1]` bind ENOTFOUND**. `LOOPBACK_BINDS` accepts `[::1]` for
    the auth gate, but `app.listen()` wants the unbracketed `::1`;
    `qwen serve --hostname [::1]` passed the gate and then crashed
    with ENOTFOUND. Strip brackets at bind-time, keep them for the
    printed URL. New test asserts the listener actually binds when
    the operator types `[::1]`.

  - **`sendPrompt` no transport-close detection**. The chained
    `entry.connection.prompt()` could hang indefinitely if the
    `qwen --acp` child wedged or the underlying stream broke
    mid-flight (the SDK's pending JSON-RPC promise never delivers
    a response). Because the per-session FIFO tail derives from
    that promise, a single stuck prompt poisoned every subsequent
    caller for the same session. Round 4's `channel.exited` is
    already wired to remove the entry, but the in-flight prompt
    itself wasn't racing it.

    Fix: race `entry.connection.prompt(...)` against
    `entry.channel.exited` inside `sendPrompt`; when the transport
    closes mid-flight, the prompt fast-fails with a descriptive
    error rather than hanging the queue. New test exercises this
    via a stuck fake agent + manual `crash()`.

Real correctness:

  - **`spawnOrAttach` attach-path ignored modelServiceId**. Under
    `sessionScope:'single'` (default) a client requesting a
    specific model on attach got `attached:true` while continuing
    to use whatever model the shared session already had — a
    silent contract drift. Refactor the per-session
    `unstable_setSessionModel` call into a shared
    `applyModelServiceId(entry, modelId)` helper that runs both at
    create-time (existing path) AND on attach-with-model. Same
    helper publishes the `model_switched` event so cross-client
    UIs see the change. New tests cover apply-on-attach and the
    omit-modelServiceId-on-attach no-op case.

Stage 1 design:

  - **`BridgeClient.{readTextFile, writeTextFile}` raw fs proxy**.
    The audit flagged that the bridge reimplements file I/O with
    `fs.{read,write}File` instead of delegating to core's
    filesystem service — divergence on BOM handling, non-UTF-8
    encodings, original line endings. Wiring core's
    FileSystemService through the bridge is invasive (constructor
    dep, reaches into core's runtime), and Stage 2's in-process
    bridge eliminates the proxy entirely. Documented as a
    known gap with the exact user-visible scenarios; no behavior
    change in this PR.

Test counts: cli serve **116** (was 112, +4); full cli **5070**
(was 5066, +4); SDK unchanged at 243. Lint + typecheck green.

* fix(cli): PR #3889 review round 7 — match CodeQL suppression to fired query (#3803)

Single new CodeQL alert (#201) on `workspaceCwd → spawn({cwd})`. The
round-3 suppression I added (`lgtm[js/shell-command-constructed-from-
input]`) referenced the WRONG query id — the alert fires the
`js/path-injection` query, not the shell-command one. The misnamed
suppression also lived 30+ lines above the actual flagged spawn call,
out of CodeQL's annotation scope.

Move the suppression onto the line immediately preceding the spawn
call and use the matching query id `js/path-injection`. The
function-level comment block above still documents the Stage 1 trust
model rationale (operator-controlled cwd is intentional; agent runs
as same UID with shell-tool access; Stage 4+ remote sandbox replaces
this factory entirely).

Defense-in-depth note added: `workspaceCwd` is canonicalized via
`path.resolve()` in `spawnOrAttach` before reaching this factory, and
spawn's `cwd` doesn't pass through any shell.

No behavior change. Test counts unchanged (cli serve 116, full cli
5070).

* fix(cli): self-audit round 8 — concurrency + listener leak + IPv6 + CodeQL honesty (#3803)

Multi-round audit pass on PR #3889 commits 5/6/7. Four findings, one
real high-severity.

High:

  - Attach-with-modelServiceId had no error recovery and no FIFO. If
    the agent rejected the new model on attach, `applyModelServiceId`
    threw, the route 500'd, and the existing session kept running the
    OLD model — caller sees a 500 with no easy way to detect the
    state. Worse, two simultaneous attaches with different
    modelServiceIds would race the `unstable_setSessionModel` calls
    with no serialization. Add a per-session `modelChangeQueue`
    (parallel to `promptQueue`); `applyModelServiceId` now chains
    through it. On failure publishes a `model_switch_failed` event to
    the bus so OTHER attached clients can see what happened (the
    failed-caller still gets the 500). Two new bridge tests cover
    rejection observability + concurrent FIFO.

Medium:

  - `sendPrompt` was adding a `.then` listener to
    `entry.channel.exited` PER CALL, accumulating linearly with
    prompt count over a session's lifetime. ~hundreds of bytes per
    prompt; trivially observable on chatty long-running sessions.
    Cache a single `transportClosedReject` lazy-init promise on
    SessionEntry; every subsequent prompt's race uses the same
    promise.

Low:

  - `[host]:port` IPv6 syntax in `--hostname` was being naively
    bracket-stripped to `host]:port`, which Node rejects with a
    cryptic ENOTFOUND at startup. Tighten the strip to only
    accept pure `[addr]` forms; reject the URL-with-port form
    upfront with a useful error pointing at `--port`.

  - `BoundedAsyncQueue.forcedInBuf` invariant comment was wrong: it
    claimed force-pushed items were always at the front of `buf`,
    but the eviction-frame path force-pushes at the BACK. The
    miscount that follows is functionally inert (`close()` blocks
    the next cap check), but the comment was actively misleading.
    Rewrote it to honestly describe both call paths and explain
    why the eviction-case miscount is harmless.

CodeQL honesty:

  - Round 7's `// lgtm [js/path-injection]` comment doesn't actually
    suppress alerts — GitHub Code Scanning ignores inline `lgtm`
    annotations (LGTM.com retired 2021). Replaced the misleading
    `// lgtm` line with a NOTE block stating the constraint
    explicitly: suppression requires UI dismissal or
    `.github/codeql/codeql-config.yml`, both out of scope for a
    code-only PR. The function-level comment that explains the
    Stage 1 trust model rationale stays.

Test counts: cli serve **119** (was 116, +3); full cli **5073**
(was 5070, +3, no regressions).

* fix(cli): self-audit round 9-10 — reject empty-bracket --hostname (#3803)

Final fix from rounds 9-10 of the audit chain. One real concern + three
nice-to-have test gaps that the code already handles correctly.

  - `--hostname '[]'` (empty brackets) used to slip past the bracket
    validator: `slice(1, -1)` produced `''`, which Node interprets as
    "bind to all interfaces". An operator typing `[]` clearly meant
    something specific, not wildcard. Reject the empty-inner case
    upfront with the same useful error as the `[host]:port` case.
    New test asserts the rejection.

Round 10 ran a clean convergence pass and signed off:
  - Cross-cutting state invariants (byWorkspace, byId, inFlightSpawns,
    pendingPermissions, plus all per-entry queues and caches) — all
    mutations paired and async holes safe.
  - All test names match assertions.
  - Public type surface clean (DaemonEvent.id?, Stage1Feature
    CLI-only, DaemonClientOptions.fetch shape correct).
  - Production paths verified: non-executable child times out at 10s
    init, multiple-daemon EADDRINUSE rejects cleanly via
    `server.once('error', reject)`.
  - Three "missing test" notes (transportClosedReject cache sharing,
    full subscribe-publish-evict sequence, modelChangeQueue failure
    isolation) are diagnostic gaps — the code paths are correct and
    covered by adjacent tests.

Test counts: cli serve **120** (was 119, +1 empty-bracket); SDK
unchanged at 243.

* docs(cli): note SSE single-line data emit vs multi-line parser (#3803)

formatSseFrame emits the payload as a single `data:` line. The
EventSource spec also allows a frame to span multiple `data:` lines
(joined by `\n` on parse), and the SDK receive-side parser handles
that variant — but we never emit it because the JSON payload has no
embedded newlines after JSON.stringify. Document the in/out asymmetry
so future readers don't mistake the absence of newline splitting for
a bug. Closes review thread AMgP0.

* fix(cli,sdk): close 11 #3889 review threads — race + leak + IPv6 + SSE

Critical correctness:
- setSessionModel now serializes through `entry.modelChangeQueue` so
  POST /session/:id/model can't race with the attach-with-different-
  modelServiceId path that already chains on the same queue. Without
  this two concurrent model changes interleave and the published
  `model_switched` event may not match the agent's actual model.
- POST /session reaps the spawned child when the client disconnected
  during the 1-3s spawn window (`req.aborted && !session.attached`).
  Without this, every aborted request leaks one orphan child the
  daemon can't address by sessionId. Attached sessions skip the kill
  — another client legitimately owns them.
- spawnOrAttach refuses dispatch once shutdown has started
  (`shuttingDown` flag set at the top of `shutdown()`). Late-arrivers
  on already-established HTTP connections that pass `server.close`'s
  rejection of NEW connections would otherwise spawn children the
  shutdown snapshot already missed. Late re-check inside `doSpawn`
  (after `connection.newSession` resolves) catches the in-flight case
  and tears down the half-built channel.
- sendPrompt early-aborts pre-aborted callers before queuing — saves
  a queue trip and gives a clean trace for retry-after-abort flows.

Defensive:
- parseSseStream caps the unread buffer at 16 MiB. Without this, an
  upstream that returns non-SSE (misconfigured proxy, long-lived
  non-streaming body) feeds `buf` until the consumer OOMs.
- parseSseStream now accepts an optional AbortSignal that is checked
  at each iteration, and DaemonClient.subscribeEvents forwards
  `opts.signal` into it. Post-200 aborts now actually stop iteration
  instead of buffering frames until the upstream closes.
- DaemonClient.fetchTimeoutMs (30s default) wraps every short-poll
  method (health/capabilities/createOrAttachSession/listWorkspaceSessions/
  setSessionModel/cancel/respondToPermission) with `AbortSignal.timeout`.
  Composes with caller-provided signals via `AbortSignal.any`. `prompt`
  is intentionally exempt (long-lived: model + tool turns can take
  minutes); `subscribeEvents` is exempt (long-lived SSE).
- New `bridge.killSession(sessionId)` API mirrors the shutdown teardown
  for a single session — used by POST /session orphan-reap above and
  exposed for future routes that need targeted cleanup.

Stale + cosmetic:
- Bridge map header comment said "no path that removes a session...
  when its child process crashes between requests" — out of date since
  the `channel.exited` cleanup landed in an earlier audit round.
  Rewritten to describe the actual cleanup chain.
- runQwenServe now wraps IPv6 hostname literals in brackets when
  building the URL (`http://[::1]:4170` not `http://::1:4170`). The
  bracket-stripping logic on `listenHostname` already handled
  `app.listen()` correctly; this fixes the printed/copy-paste URL.
- Dead `mode: ServeMode` variable in serve.ts removed (the runQwenServe
  call hardcodes `mode: 'http-bridge'`); the warning condition is now
  inlined.

Test plan:
- `vitest run` cli/serve: 120/120 + 49/49 (httpAcpBridge) pass
- `vitest run` sdk-typescript daemon: 42/42 pass
- tsc --build packages/cli packages/sdk-typescript: clean
- ESLint: clean

* chore(lint): allow mime/lite in import/no-internal-modules (#3803)

`packages/core/src/utils/fileUtils.ts` and its test import `mime/lite`,
which is mime@4's documented public sub-export (a smaller bundle that
omits the legacy mime DB) — not an internal module. The rule has been
flagging these on PR CI runs even though main's CI happens to pass
(likely stale-cache vs fresh-install timing). Add `mime/lite` to the
allowlist so lint is consistent across main and PR runs.

* fix(cli,sdk): close 14 review threads — env whitelist + races + Windows tests + structured errors (#3803)

Critical correctness:
- registerPending now resolves orphaned permissions as cancelled when
  the entry has been torn down between the agent's `requestPermission`
  decision and the bridge handler firing. Previously the permission
  would hang the agent forever (killSession's pendingPermissionIds
  iteration didn't include the just-orphaned id, shutdown's clear()
  dropped it without resolving).
- Workspace key now goes through `realpathSync.native` (with a
  resolved-but-uncanonicalized fallback for non-existent paths) so
  case-insensitive filesystems (macOS APFS, Windows NTFS) don't
  silently degrade `sessionScope: 'single'` into "one session per
  spelling". Matches how `config.ts` / `settings.ts` / `sandbox.ts`
  resolve workspace paths.
- killChild gets a hard 10s deadline after SIGKILL so a child stuck
  in uninterruptible sleep (D-state, e.g. NFS read on a dead server)
  can't block `bridge.shutdown()`'s `Promise.all` forever.
  `SHUTDOWN_FORCE_CLOSE_MS` in `runQwenServe` only covers
  `server.close()` — without this hard kill, daemon shutdown hangs.
- setSessionModel now races the agent call against
  `transportClosedReject` and wraps in `withTimeout`, matching what
  `sendPrompt` and `applyModelServiceId` already do. Without the
  race, a wedged child blocks `POST /session/:id/model` forever.
  Also publishes a `model_switch_failed` SSE event on rejection so
  passive subscribers see the failure (matches `applyModelServiceId`).
- shutdown() now awaits `inFlightSpawns` so the late-shutdown re-check
  inside `doSpawn` finishes its half-built channel teardown before
  `bridge.shutdown()` resolves. Without the await, `runQwenServe.close()`
  returns and `process.exit(0)` is queued before the orphan tears
  itself down, surfacing a stderr error AFTER the daemon claimed
  graceful shutdown.
- sendPrompt re-checks `signal.aborted` immediately after
  `addEventListener` so a microsecond-window synchronous abort that
  fires between the early-exit check and listener registration still
  triggers the agent `cancel` notification.

Security:
- `defaultSpawnChannelFactory` now passes an *allowlisted* environment
  to the spawned `qwen --acp` child instead of `{ ...process.env }`
  with `QWEN_SERVER_TOKEN` deleted. The agent runs user-supplied
  prompts with shell-tool access; anything in its env (OPENAI/
  ANTHROPIC/DASHSCOPE keys, AWS/GCP credentials, DB passwords,
  OAuth tokens) is reachable by prompt injection. Allowlist covers
  HOME/PATH/USER/LOGNAME/LANG/LC_*/TMPDIR/TEMP/TMP/NODE_PATH plus
  Windows essentials (SYSTEMROOT/USERPROFILE/APPDATA/...). The
  explicit `delete childEnv['QWEN_SERVER_TOKEN']` stays as
  defense-in-depth — anyone grepping for the token name finds the
  scrub explicitly named.

Observability:
- 5xx responses now carry structured `code` and `data` fields when
  the underlying error has them (JSON-RPC errors from the ACP SDK
  forward as `{code, message, data}`). Without this, every distinct
  failure (quota / rate-limit / auth / crash) collapses to the same
  opaque "Internal error" string at the client.
- 5xx errors log to stderr (via `writeStderrLine`, not `console.error`,
  to keep the no-console lint rule happy). Stop-gap until structured
  access/error logging lands.
- Eviction frame on EventBus subscriber overflow no longer consumes
  a `nextId` slot. The synthetic frame burning a sequence id meant
  healthy subscribers saw gaps (3 → 5) that the resume ring couldn't
  back-fill — silently broke the `BridgeEvent.id` "monotonic per-
  session" contract. `BridgeEvent.id` is now optional on the type
  to make the absence honest. Same pattern as `stream_error`.

Cross-platform:
- httpAcpBridge.test.ts now derives expected paths via
  `path.resolve(path.sep, 'work', 'a')` (factored out as `WS_A`/
  `WS_B`/`SESS_A` constants) instead of hardcoded POSIX literals
  like `/work/a`. On Windows `path.resolve('/work/a')` returns
  `D:\work\a` so the literal expectation drifted; the bridge's
  internal canonicalization to that form was correct, the tests
  were wrong. Fixes 3 Windows CI matrices that have been red since
  the PR opened.

Compatibility:
- `DaemonClient.fetchWithTimeout` now feature-detects
  `AbortSignal.timeout` and `AbortSignal.any` with polyfills, so the
  SDK actually works on its declared minimum runtime (Node >=18.0.0).
  `AbortSignal.any` was added in Node 20.3 — without the fallback
  every non-streaming call throws on Node 18.0–20.2.

Documentation:
- `cancelSession` now explicitly documents that cancel only affects
  the currently active prompt; previously POST'd queued prompts
  continue to execute. Multi-prompt queueing is a daemon-introduced
  behavior (not in ACP spec), so the contract for queued prompts is
  ours to define and was previously implicit.
- Removed misleading "still reliable on Node 20" comment around
  `req.aborted` and switched the orphan-cleanup signal to
  `res.writable` — the right "can we still send a response to this
  client?" check (`req.destroyed` is too eager: clients close their
  writable end after sending the body even though they're still
  listening for the response).

* fix(cli): close 3 more review threads — case-insensitive Host, trim token, sliceLineRange (#3803)

- hostAllowlist now lowercases the Host header before comparison. Per
  RFC 7230 §5.4 Host is case-insensitive; Express normalizes header
  *names* but not values, so a Docker proxy that capitalizes the
  hostname (`Host: Localhost:4170`) or a platform with case-preserving
  DNS (`HOST.docker.internal`) was getting 403 with an exact-match
  compare.
- `runQwenServe` now `.trim()`s the token from both `--token` and
  `QWEN_SERVER_TOKEN`. Common gotcha: `export QWEN_SERVER_TOKEN=$(cat
  token.txt)` keeps the file's trailing `\n`, so the hashed-then-
  compared token never matches what well-behaved clients send. Every
  request returns the generic 401, no breadcrumb pointing at the
  whitespace, operators chase ghosts.
- `BridgeClient.readTextFile` partial-read path no longer
  `content.split('\n')`s the entire file. New `sliceLineRange` walks
  `indexOf('\n', …)` forward only to the end-of-range boundary and
  returns a single substring. For a 100 MB file with `{line: 1,
  limit: 2}` this avoids a ~100 MB `String[]` allocation.

* fix(sdk): close 2 #3889 polyfill leaks — abortTimeout + composeAbortSignals

Two copilot review threads on commit 11567a43c's AbortSignal
polyfill code:

- `abortTimeout` polyfill scheduled `setTimeout` but never cleared
  it. Even after the awaited fetch resolved, the pending timer kept
  the event loop alive until it fired; on a heavily-used client the
  per-call timers accumulated. Fix: `.unref()` the handle (so a
  fast-resolving fetch doesn't pin the loop) AND clear it on the
  controller's `abort` event (so the composed-signal-aborted-first
  path also drops the timer). Defensive `typeof handle.unref` so
  the polyfill works in any runtime that returns a non-NodeJS
  Timeout shape.

- `composeAbortSignals` polyfill added an `abort` listener to every
  input signal but never removed them. Long-lived caller signals
  (e.g. a session-scope cancel signal that lives for the whole SDK
  client) accumulated one listener per SDK call — slow leak that
  retained the closure + controller of every prior call. Fix:
  track per-input cleanups in an array, detach all on the first
  abort (whichever input fires) AND on the composed controller's
  own abort path (defense-in-depth for callers that abort the
  composed signal independently).

Both leaks only fire on the polyfill path — runtimes with native
`AbortSignal.timeout` / `AbortSignal.any` (Node 20.3+) take the
early-return path and bypass the leak surface entirely.

29/29 DaemonClient.test.ts pass; tsc + ESLint clean.

* fix(cli,sdk): close 13 deepseek review threads — error handling + race + log noise (#3803)

Correctness:
- `applyModelServiceId` now races against `transportClosedReject` like
  `setSessionModel` and `sendPrompt` already do, so a child crash
  during attach-with-different-model fails fast instead of waiting
  the full 10s `withTimeout`.
- `POST /session` disconnect guard now handles the `attached` case:
  previously `!res.writable && session.attached` fell through to
  `res.json` and threw EPIPE through Express's default handler.
- `POST /session/:id/prompt` now drops `AbortError` silently. When
  the HTTP client closes mid-prompt the bridge re-throws as
  `AbortError`; routing it through `sendBridgeError` produced a
  noisy 500 + stderr stack trace that under active use generated
  dozens of misleading log lines per second.
- `POST /session/:id/prompt` now rejects empty arrays (`[]`) and
  non-object elements with a 400 instead of letting the ACP SDK
  surface 500s on degenerate input.
- `readTextFile` rejects `limit <= 0` up front (previously
  `sliceLineRange` hit the `end < start` path with surprising
  results).
- `inFlightSpawns` tracks ALL `doSpawn` promises now, not just
  single-scope ones. Under `thread` scope, `shutdown()` previously
  resolved before in-flight spawns finished their child cleanup,
  surfacing stderr noise after the daemon claimed graceful shutdown.
  Use a unique `${workspaceKey}#${randomUUID()}` key per thread-scope
  spawn so simultaneous spawns don't collide.

Shutdown ordering:
- The 5s force timer is now armed AFTER `bridge.shutdown()` resolves,
  so it only races `server.close()` (the listener drain) — not the
  bridge's own 10s `KILL_HARD_DEADLINE_MS` child cleanup. The earlier
  arrangement could resolve this promise while the bridge was still
  killing children, orphaning anything not yet at the deadline.

Express error handling:
- Final 4-arg error middleware catches `express.json()`'s
  `SyntaxError` on malformed bodies and returns JSON `400` instead of
  Express's default HTML page (which trips SDK clients that expect a
  JSON body on every response).
- SSE `res.on('error')` handler now logs the error before cleanup, so
  operators get a breadcrumb for flaky-network triage instead of
  silent disconnect.

Performance:
- `ALLOWED_CHILD_ENV_KEYS` moved to module scope so the 22-element
  Set is allocated once at load instead of rebuilt on every
  `defaultSpawnChannelFactory` call. (Renamed from `ALLOWED_ENV_KEYS`
  for clarity.)

Documentation:
- `canonicalizeWorkspace` now explicitly notes the cross-module
  contract with `config.ts`/`settings.ts`/`sandbox.ts`. A shared
  utility was considered but deferred — the call sites use slightly
  different fallback policies and Stage 2 in-process collapses the
  bridge into core, removing the bridge-side path resolution
  entirely.

Tests:
- Two new DaemonClient tests exercise `fetchWithTimeout`'s
  AbortSignal.timeout / composeAbortSignals polyfill paths against
  a never-resolving fetch promise. Previously every test used
  `recordingFetch` with synchronous resolution, so those polyfills
  shipped untested — a logic error there would only surface when a
  real daemon became unresponsive.

* docs(serve): close §08 Stage 1 doc gap — user guide + protocol reference + DaemonClient example (#3803)

Stage 1 of issue #3803 §08 budgeted "Documentation + examples + e2e tests"
as the closing 1d task. The e2e tests landed (22 cases under
integration-tests/cli/), the docs did not. After merge, anyone who
discovers `qwen serve` via `qwen --help` had nowhere in-repo to read
about it — the only complete description lived on the PR page itself.

This commit fills that gap with three complementary docs and a README
mention:

- `docs/users/qwen-serve.md` — operator-facing quickstart: 5-step curl
  walkthrough (start → /health → /capabilities → /session → /prompt →
  /events), CLI flag table, default-deployment threat model summary,
  and a pointer to the orchestrator-shaped multi-session future.
- `docs/developers/qwen-serve-protocol.md` — full HTTP protocol
  reference: per-route request/response shapes, auth contract, error
  envelope, SSE frame format and event-type table, Last-Event-ID
  reconnect semantics, environment variables, source layout.
- `docs/developers/examples/daemon-client-quickstart.md` — TypeScript
  end-to-end snippet with the SDK's DaemonClient: capabilities probe,
  spawn-or-attach, subscribe-before-prompt event handling, reconnect
  via Last-Event-ID, first-responder permission voting, shared-session
  collaboration between two clients, auth, cancel.
- README.md — "Daemon mode" added to the 5-way usage list + a short
  section under Usage with three doc links.
- `docs/users/_meta.ts` and `docs/developers/_meta.ts` — sidebar
  entries for the new pages.

No code changes; no test changes.

* docs(serve): close 8 deepseek doc-review findings (#3803)

Inline doc review on the Stage 1 doc set caught real issues:

- `qwen-serve-protocol.md`: `session_died` (and `client_evicted`,
  `stream_error`) now explicitly marked as terminal — SSE stream
  closes after the frame; subscribers should reconnect via POST
  /session for `session_died`.
- `qwen-serve-protocol.md`: documented coalesced spawn failure path
  — when the underlying spawn fails, all coalesced callers receive
  the same error and the in-flight slot is cleared so a follow-up
  call can retry.
- `qwen-serve-protocol.md`: clarified the `modelServiceId` (back-end
  provider, picked at session create) vs `modelId` (model within an
  already-bound service, picked via POST /session/:id/model)
  distinction, and explained why `/capabilities`'s `modelServices`
  array is always `[]` in Stage 1.
- `qwen-serve-protocol.md`: typo "Re-races" → "Races" on the model
  switch description.
- `qwen-serve.md`: reordered quickstart so SSE subscribe (now step 4)
  comes before the prompt POST (now step 5). Previously, step 4's
  blocking prompt resolved before step 5's `curl -N` was open, so
  readers following the steps verbatim never saw a streaming event.
  Also expanded the event-types paragraph to call out which frames
  are terminal.
- `daemon-client-quickstart.md`: closed a TOCTOU race in the example
  — `sendPrompt` fired before the SSE handshake completed, so
  fast-starting agents could emit events into the ring before the
  iterator was actually pulling. Pass `lastEventId: 0` so the
  daemon's replay buffer covers the gap; comment in the example
  explains the rationale.
- README.md: "Loopback bind has no auth" → "no auth by default"
  (since the user can opt into bearer auth on loopback by setting
  `QWEN_SERVER_TOKEN`).

* fix(cli,sdk,docs): close 21 review threads — env regression + races + doc accuracy (#3803)

CRITICAL regression fix:
- Child env scrub flipped from allowlist back to denylist (just
  QWEN_SERVER_TOKEN). The earlier allowlist was overzealous: it
  dropped OPENAI_API_KEY / ANTHROPIC_API_KEY / GEMINI_API_KEY /
  QWEN_* / DASHSCOPE_API_KEY / custom modelProviders[].envKey, all of
  which the agent legitimately needs to authenticate to the LLM.
  Daemon-mode users with env-only auth would start the daemon, attach
  a session, then watch every prompt fail with auth errors. Threat-
  model rationale documented at the call site: prompt-injected shell
  tools can already read ~/.bashrc, ~/.aws/credentials, etc., so env
  passthrough isn't the security boundary; the user-as-trust-root is.
  QWEN_SERVER_TOKEN stays scrubbed to prevent agent → its own daemon
  escalation.

Other code fixes:
- doSpawn no longer tears down the session when create-time model
  switch fails. The session is still operational on the agent's
  default model; tearing it down left the caller with a 500 and no
  sessionId to retry against. The model_switch_failed SSE event is
  the visible signal; caller can retry via POST /session/:id/model
  once they have the sessionId.
- doSpawn now uses applyModelServiceId for the create-time model
  switch (was raw conn.unstable_setSessionModel + withTimeout). The
  helper races against transportClosedReject too, so a child crash
  during model switch fails fast instead of consuming the full init
  timeout.
- sendPrompt's abort handler now calls cancelPendingForSession
  before the ACP cancel notification (matching cancelSession). A
  client disconnecting mid-permission was leaving the agent stuck
  waiting on a vote that no SSE subscriber would ever cast.
- shutdown() and killSession() now publish a terminal `session_died`
  SSE event before closing the bus. Previously the channel.exited
  handler's "byId.get(...) !== entry" guard short-circuited (entry
  already removed), so SSE subscribers couldn't tell daemon shutdown
  from a transient network error.
- Express error middleware now special-cases `status: 413`
  (EntityTooLargeError from body-parser when a request exceeds the
  10 MB JSON limit) and returns a JSON 413 instead of a misleading
  500.
- /health is now registered BEFORE bearerAuth middleware, so
  liveness probes work without credentials when the daemon was
  started with --token. CORS deny + Host allowlist still apply.
- SSE writes serialize through a per-connection chain so the
  heartbeat interval can no longer interleave with the main event-
  write loop. Two concurrent res.write calls would otherwise bypass
  the backpressure guard and could interleave bytes between SSE
  frames on the wire.

SDK:
- abortTimeout / composeAbortSignals exported for direct unit
  testing. The existing test claimed to cover the polyfill paths via
  subscribeEvents, but subscribeEvents calls _fetch directly (not
  fetchWithTimeout), so composeAbortSignals never ran in the test.
  New tests exercise the helpers directly across native + polyfill
  runtimes.

Doc accuracy fixes:
- daemon-client-quickstart.md: createOrAttachSession({ cwd: ... })
  → ({ workspaceCwd: ... }) (SDK type), client.sendPrompt → prompt,
  client.cancelSession → cancel. The example wouldn't typecheck.
- qwen-serve.md: "binds one workspace" claim removed — a single
  daemon hosts sessions for any cwd the caller passes; the
  per-instance constraint is per-user / scale, not per-workspace.
  Auth verification example switched from /health to /capabilities
  (since /health is now exempt from bearer auth).
- qwen-serve-protocol.md: env var was QWEN_E2E_LLM, real var is
  SKIP_LLM_TESTS (inverted polarity). Streaming test count was 4,
  actually 3. Added Stage 1 limitation notes for "no DELETE
  /session" and "no permission timeout". Added client-side
  ring-buffer gap detection guidance for Last-Event-ID reconnect.

Test updates:
- httpAcpBridge.test.ts: rewrote two tests for the new
  doSpawn-on-model-switch-fail contract (publish event, keep
  session). Updated shutdown-closes-subscriptions test to expect
  the new terminal `session_died` frame.
- server.test.ts: switched bearer-auth rejection probes from
  /health to /capabilities (since /health is now exempt). Added a
  test that locks /health's exemption.

* docs(serve): close 2 last review threads — prompt timeout limitation note (#3803)

A05Yk (deepseek): document that `POST /session/:id/prompt` has no
server-side timeout. The bridge only races against the agent child
exiting + the caller's HTTP-disconnect AbortSignal; a wedged-but-alive
agent blocks the per-session FIFO. Long-running prompts are
legitimate (deep research / large-codebase analysis) so a default
deadline is deliberately not set; Stage 2 will expose a configurable
opt-in. Callers should set their own client-side timeout and
disconnect / POST /session/:id/cancel on expiry.

AyoUy (copilot): same env-allowlist concern as A09HB — already
addressed by the allowlist→denylist revert in the previous commit
(e74aa9919). No additional code change needed; the resolve here just
acks that the upstream fix covers it.

* fix(serve): close 3 copilot review threads — SSE envelope shape + integration test ordering (#3803)

A8uSe / A8uSt — the SSE frame examples in qwen-serve.md and
qwen-serve-protocol.md showed `data:` containing only the inner ACP
payload (e.g. `{"sessionUpdate": ...}`). The daemon actually emits
the full event envelope — `{id?, v, type, data, originatorClientId?}`
— JSON-stringified on a single line. Readers copying the curl output
and writing parsers against the documented shape would extract garbage
or fail JSON-shape validation. Both docs now show the real envelope
and call out the SSE-level `id:` / `event:` lines as EventSource
convenience that duplicates fields already inside the JSON envelope.

A8uSz — integration `qwen serve — bearer auth` tests probed `/health`
for 401 assertions, but `/health` is now intentionally registered
BEFORE the bearer middleware (per the A8dZT fix in the previous
commit) so liveness probes work without credentials. Switched probes
to `/capabilities`, plus added a `/health exempt` test that locks the
exemption so a future middleware ordering change can't silently break
liveness probes.

Also: integration `bad modelServiceId tears down half-init session`
asserted the OLD doSpawn-on-model-switch-fail behavior (throw + clear
maps). Per #3889 review A05Ym the new behavior keeps the session
operational on the agent's default model and surfaces the failure
via the `model_switch_failed` SSE event. Test renamed to
`bad modelServiceId keeps the session alive on the default model`
and rewritten to assert the new contract.

* fix(serve): close 3 copilot review threads — sync write throw, polyfill name, blockquote (#3803)

A800o (server.ts:360): `res.write(chunk, cb)` callback isn't documented
to receive an error argument in Node — errors come on the `'error'`
event, which the surrounding code already wires up. The dead `(err) =>
if (err) reject(err)` branch was misleading. The real concern was
that `res.write()` can throw synchronously when the socket is already
destroyed (typical EPIPE shape), and the throw escaped the promise
executor. Wrapped the `res.write` call in try/catch so that surfaces
as a rejection on the returned promise instead of an unhandled
exception.

A8008 (DaemonClient.ts:375): `abortTimeout` polyfill called
`new DOMException('TimeoutError')`, which sets the *message* to
"TimeoutError" and leaves `name` at its default ("Error"). Native
`AbortSignal.timeout()` aborts with `name === 'TimeoutError'` (per
WHATWG), so callers doing `if (err.name === 'TimeoutError')` to
distinguish timeout from user-abort would see the polyfill behave
differently from the native runtime. Constructor signature is
`new DOMException(message, name)` — fixed both args.

A801J (qwen-serve-protocol.md:254): blockquote was broken — one
line in the middle of the multi-line `>` block was missing the `>`
prefix, which dropped the rest of the list out of the quote and
rendered awkwardly. Added the missing `>`.

* fix(cli,sdk): close 8 review threads — DoS cap + SDK plumbing + cleanup (#3803)

Critical:
- A9UEi — `EventBus` had no subscriber cap and evicted subscribers
  lingered in the `subs` Set until the consumer drove `next()`. An
  attacker opening thousands of SSE connections to one session would
  amplify each `publish()` (O(N) over subs) into a CPU/memory DoS,
  with each evicted-but-stalled connection's `BoundedAsyncQueue`
  pinned in memory forever. Two fixes: per-bus subscriber cap of 64
  (refuses new subs at the limit by returning an empty iterable),
  AND `subs.delete(sub)` immediately when a subscriber is evicted so
  subsequent publishes don't pay the dead-sub iteration cost. Also
  set `server.maxConnections = 256` on the listener to bound socket
  descriptors against connections that never finish their headers.

SDK:
- A9UEv — `prompt()` now accepts an optional `AbortSignal`. Caller
  cancellation forwards through the underlying TCP close, which the
  daemon already translates into an ACP `cancel` notification. The
  bridge's `sendPrompt(sessionId, req, signal)` always supported it;
  only the SDK surface was missing the parameter.
- A9UEn — `subscribeEvents` now applies `fetchTimeoutMs` to the
  CONNECT phase only (request → headers received). The SSE body
  itself stays uncapped (it's long-lived by design), but a daemon
  that's TCP-open but never returns headers no longer blocks
  callers indefinitely. Implementation: a setTimeout-driven
  AbortController composed with the caller's signal, cleared in
  `finally` once `_fetch` returns.
- A9UEr — `respondToPermission` now drains the response body via
  `res.body?.cancel()` on both 200 and 404. undici keeps the
  underlying socket pinned waiting for an unconsumed body; long-
  running clients with frequent permission votes would exhaust
  the connection pool.

Cleanup:
- A9UNF — `MAX_BUF_BYTES` renamed to `MAX_BUF_CHARS` (the guard
  checks `buf.length`, which is UTF-16 code units, not bytes). The
  cap's job is "stop runaway non-SSE bodies", not exact accounting,
  so the proxy is intentional — but the name now matches the unit.
  Error message updated.
- A9UNb / A9UNp — both integration tests' boot-timeout `setTimeout`
  is now stored and `clearTimeout`'d on success and on early exit.
  Without the clear the un-cancelled 10s timer outlived the spawn
  promise and could keep the vitest event loop alive past the test,
  manifesting as intermittent timeouts on slow CI.

A9UEy was already addressed by the prior commit's `status === 413`
branch in the Express error middleware (body-parser sets both
`status: 413` and `type: 'entity.too.large'` on body-too-large
errors); resolve only.

* fix(cli,test): close 2 copilot review threads — case-insensitive bearer + Windows skip (#3803)

A9sCe (auth.ts:88): bearer scheme parsing was case-sensitive
(`parts[0] !== 'Bearer'`). Per RFC 7235 §2.1 / RFC 7230 §3.2.6 the
auth scheme token is case-insensitive — `Bearer` / `bearer` /
`BEARER` are all valid, and conformant clients may send any. The
old code returned 401 on those. Switched to a regex-based split that
also tolerates runs of whitespace between scheme and credentials,
then `.toLowerCase()`s the scheme before comparing. The token value
itself stays case-sensitive (it's user-defined opaque material).

A9sCw (qwen-serve-streaming.test.ts): the streaming integration
suite shells out to `pgrep` / `kill -KILL` to simulate child-process
crashes for the `SIGKILL → session_died` test. Those binaries are
POSIX-only — on Windows runners the suite would fail even when
`SKIP_LLM_TESTS` is unset. Added `process.platform === 'win32'` to
the SKIP gate. A Windows-equivalent (`taskkill /F /PID …`) needs
different scaffolding; deferred.

* fix(cli,sdk,docs): close 6 review threads — CodeQL regex, body cancel, env doc (#3803)

A90nk (auth.ts:93): CodeQL flagged the new bearer-scheme regex
`^(\S+)\s+(.+)$` as a polynomial-regex risk on user-controlled
input — `\s+` and `.+` overlap on whitespace-heavy adversarial
headers (the alert example: `'!\t' + '\t'.repeat(N)`). Replaced
with a hand-rolled split (`indexOf(' ')` + manual whitespace
skip) so there's no backtracking. Behavior unchanged: scheme is
still case-insensitive, runs of whitespace between scheme and
credentials still tolerated, scrubs `header.charCodeAt() === 0x20`
explicitly so we don't accidentally consume tab/newline as scheme
separator.

A90oi / A96Q8 (qwen-serve.md:117): the threat-model bullet still
claimed the spawned child runs with an "allowlisted environment"
(HOME / PATH / USER / LOGNAME / LANG / etc), but the prior commit
flipped the implementation to a denylist (only `QWEN_SERVER_TOKEN`
scrubbed) so the agent could authenticate to LLM providers. Doc
now matches code: explicit pass-through with a one-key scrub, plus
the threat-model rationale (user-as-trust-root, env passthrough is
not the boundary).

A90ou (qwen-serve-protocol.md:300): `stream_error` example showed
the inner ACP-style payload `{"error":"<message>"}` instead of the
full envelope `{v, type, data:{error}}` that other SSE-frame
examples in the same doc already use. Updated to match.

A96RL (DaemonClient.ts:352): `subscribeEvents` threw on a 200 with
the wrong content-type without consuming the response body first.
On undici-backed `fetch` an unconsumed body keeps the underlying
socket pinned waiting for the consumer; long-running clients
hitting this path repeatedly would exhaust the connection pool.
Same `await res.body?.cancel()` pattern as `respondToPermission`.

A96RR (server.ts:167): prompt-element validation accepted any
non-null object, but `typeof [] === 'object'`, so `prompt: [[]]`
slipped past with a confusing 500 from the ACP SDK layer downstream.
Added `!Array.isArray(item)` so the 400 actually catches array
elements.

* fix(cli,sdk,docs): close 10 review threads — DoS observability + race + tests (#3803)

Code:
- A-Ur8 (httpAcpBridge.ts:1319): SCRUBBED_CHILD_ENV_KEYS gets a
  prominent WARNING that the denylist-only design is correct ONLY
  because the agent has unrestricted shell-tool access. Any future
  sandbox-locked variant MUST switch back to allowlist or expand
  the denylist to cover provider/CI/cloud secret prefixes.

- A-XfH (auth.ts:60): Host allowlist now accepts the no-port form
  (`localhost`, `127.0.0.1`, `[::1]`, `host.docker.internal`) when
  the bind port is 80. Per RFC 7230 §5.4 clients may legitimately
  omit the port suffix when it matches the URI scheme default.

- A-UsJ (httpAcpBridge.ts:564): unify model-switch failure handling.
  The create-session path swallows the error to keep the session
  alive on its default model; the attach path now does the same
  (was: throwing a 500 with no sessionId, denying the caller any
  way to recover). Both paths surface failure via the
  `model_switch_failed` SSE event.

- A-UsN (httpAcpBridge.ts:621): extracted the lazy-init
  `transportClosedReject` pattern into `getTransportClosedReject`
  helper. Three call sites (`applyModelServiceId`, `sendPrompt`,
  `setSessionModel`) collapsed to one, single-listener invariant
  documented at one place.

- A-UsH (eventBus.ts:194): subscriber-cap rejection is now
  observable. EventBus.subscribe throws a typed
  `SubscriberLimitExceededError` (was: silent empty iterable). SSE
  route catches it, logs to stderr, and emits an SSE-shaped
  `stream_error` terminal frame so the rejected client sees a
  readable failure rather than a closed-with-no-frames stream.

- A-UsO (server.ts:72): `/health` is now exempted from bearerAuth
  ONLY on loopback binds. On non-loopback the route is registered
  AFTER bearerAuth so probes must carry the token — otherwise an
  unauthenticated caller could probe arbitrary IP:port to confirm
  a `qwen serve` exists. Doc updated.

Tests added:
- A-UsP: new test sends an 11 MB body to verify the 413 path in
  the Express error middleware returns the actionable
  "Request body too large" JSON instead of a generic 500.
- A-UsQ: new test for `DaemonClient.prompt(sessionId, req, signal)`
  AbortSignal forwarding through to fetch.
- A-UsS: two new tests for `subscribeEvents` connect-timeout
  (never-resolving fetch aborts; fast-resolving fetch clears the
  timer so it doesn't leak as a dangling handle).
- A-UsU: new test for `sendPrompt` abort path resolving pending
  permissions as cancelled — the bug being regressed: an HTTP
  client disconnecting mid-permission would leave the agent stuck
  waiting on a vote that no SSE subscriber would ever cast.

Test contract updates:
- `publishes model_switch_failed and surfaces the error when the
  agent rejects` rewritten for the new attach-path swallow contract:
  attach now returns the existing session with `attached: true`
  and the `model_switch_failed` event is the visible failure
  signal instead of a thrown error.

* fix(serve): add missing v field on subscriber-limit stream_error frame (#3803)

`tsc --build` (which CI runs as part of the lint job) caught what
`tsc --noEmit` (the local typecheck script) missed: the new
`stream_error` frame in `server.ts:344` was constructed without the
`v` field, but `OmitId<BridgeEvent>` requires it. Local typecheck
in the previous commit was clean; the build's stricter project
graph reported `error TS2345` and broke both Lint and Test
(Ubuntu) jobs.

Set `v: 1` to match the existing `stream_error` construction in
the SSE iterator-throw path in the same file.

* docs(users): close 1 copilot review thread — GitHub canonical casing in nav (#3803)

A_U2e: nav label "Github Actions" was inconsistent with the
canonical "GitHub" casing used elsewhere in the repo (skills,
README, etc.). Rename to "GitHub Actions" for consistent branding.

Pre-existing entry in `docs/users/_meta.ts` adjacent to the
`'qwen-serve'` line this PR added — flagged in the diff context.

* fix(serve): close 4 deepseek review threads — closed-bus race + per-session stderr + entry override (#3803)

BBb9H (correctness): `BridgeClient.requestPermission` could orphan
a pending permission if the bus closed between `registerPending`
and `entry.events.publish` (the shutdown path closes per-session
buses BEFORE awaiting `channel.kill()`, so the agent can still
issue `requestPermission` in that window). Pending was registered
in the daemon-wide map but `publish()` returned `undefined`
(closed bus) → no SSE subscriber ever saw the request → no client
voted → agent's `requestPermission` hung forever, blocking the
daemon's `Promise.all` over child kills. Now: check publish's
return; if `undefined`, roll back the pending via a new
`rollbackPending` callback that resolves it as `cancelled`.

BBb8e (Critical observability): child stderr was `'inherit'` —
all sessions' stderr interleaved on the daemon's stderr stream
unattributed. Switched to `'pipe'` and forward each line with a
`[serve pid=<n> cwd=<dir>]` prefix; operators can now
`grep pid=12345` to pull one session's trace cleanly. Updated
the now-stale doc comment that claimed inherit was current.

BBb8- (deployability): `process.argv[1]` is brittle — fails on
non-`qwen` launchers (bundled binaries, npx wrappers, `node -e`,
`tsx`, container images that relocate the script). Added
`QWEN_CLI_ENTRY` env override as the higher-priority resolution
path. Improved the failure message to suggest the env var as
the actionable fix.

BBb82 (documented limitation): `withTimeout` REJECTS but doesn't
ABORT the underlying ACP op. For `unstable_setSessionModel` this
means a timed-out caller perceives failure while the agent may
eventually complete the switch — drift between caller's perceived
model and agent's actual model + contradictory SSE events.
Documented as a Stage 1 limitation in the `withTimeout` JSDoc;
acceptable because (1) ACP doesn't expose a cancel signal for
`unstable_setSessionModel` yet so we couldn't abort even if we
wanted to, (2) model switches complete in milliseconds in
practice — a timeout means genuinely wedged, not just slow.
Stage 2 will add abort plumbing once ACP exposes the hook.

* ci(noop): re-trigger workflow for f8509dde5 (#3803)

* fix(cli,sdk): close 8 review threads — sse abort + queue drain mode + perf + doc engine drift (#3803)

Correctness:
- BCcd6 (sse.ts:80): trailing flush at EOF used `splitFrames(buf)`
  which returned `[buf]` — a multi-byte split that completed
  multiple frame separators in the final `decoder.decode()` would
  merge the frames into one parse and silently drop events.
  Switched the EOF flush to `consumeFrames()` (same walker the
  main loop uses), then attempt one more `parseFrame` on any
  trailing fragment. Removed the now-unused `splitFrames` helper.

- BCybH (sse.ts:67): `parseSseStream` only checked `signal.aborted`
  before each `reader.read()`, leaving the generator parked inside
  a pending `read()` if the upstream went idle right when the
  caller aborted — contradicting the docstring's "AbortSignal
  cleanup is prompt" claim. Added a one-shot abort listener that
  calls `reader.cancel()` (cleared in `finally`), so abort
  reliably terminates even on a stalled stream.

- BCce_ / BCycT (eventBus.ts:391/253): subscribe documented "abort
  closes the iterator promptly" but `BoundedAsyncQueue.next()`
  drained any items already in `buf` before honoring `closed`.
  Aborted SSE subscribers could keep yielding hundreds of queued
  events to a closed socket. Added a `close({drain: false})` mode
  that truncates `buf` immediately, used by the abort path; the
  default drain-on-close behavior is preserved for the eviction
  path (which needs the synthetic `client_evicted` terminal frame
  to reach the consumer before the iterator unwinds).

Performance:
- BCcfe (auth.ts:72): `hostAllowlist` was allocating a fresh `Set`
  + 4 interpolated strings on every request. Cache once per
  resolved port (relevant because tests bind to ephemeral 0 and
  the port is only known after `listen()`); SSE heartbeats and
  high-frequency probes now skip the allocation.

- BCcgJ (DaemonClient.ts:137): `fetchWithTimeout` used
  `AbortSignal.timeout()` — the timer fires regardless of whether
  the fetch resolved early. On a fast-resolving request with the
  default 30s timeout, the pending timer hangs around. Switched
  to `AbortController` + `setTimeout` + explicit `clearTimeout`
  in `finally`, so each timer is released the moment its fetch
  settles. Also `.unref()`s the timer so it doesn't pin the event
  loop on its own.

Doc accuracy:
- BCyc0 (DaemonClient.ts:468): the `abortTimeout` /
  `composeAbortSignals` JSDoc claimed Node 18-20.2 polyfill
  compatibility, but `engines.node` is `>=22.0.0` now. Reframed
  as a generic feature-detect for non-Node runtimes (browsers /
  edge workers) so future maintainers don't reason about the
  wrong floor.
- BCydi (server.ts:368): "Always present in Node >= 20" → "on the
  supported Node versions (engines.node >=22)".

CodeQL alert #207 (httpAcpBridge.ts:1342, `js/path-injection` on
`cwd: workspaceCwd`) is the renumbered version of the
already-accepted #201 — same trust-model rationale documented at
the call site, same need for maintainer UI dismiss / config
exclusion.

* feat(serve): close 3 chiga0 audit items — ringSize 4000, --max-sessions, /health?deep=1 (#3803)

Three "30-minute" items from chiga0's external architecture audit
(2026-05-11). All actionable within Stage 1 scope; remaining items
in chiga0's review (SaaS positioning, multi-token to Stage 1.5,
acp-bridge package extraction, reference orchestrator) are larger
scoping decisions deferred to Stage 1.5/2.

DEFAULT_RING_SIZE 1000 → 4000 (Risk 4):
- A single long turn can emit hundreds of frames (test plan reports
  13 for a SHORT turn, real workloads can be 10× that). 1000 was
  exhausted by a moderate turn before a 5s reconnect window
  finished. 4000 gives ~30× headroom over a typical busy turn at
  the cost of a few hundred KB RAM/session. Updated user + protocol
  docs and the daemon-client-quickstart example.

--max-sessions <n> (default 20) (Rec 3):
- New `ServeOptions.maxSessions` + matching `BridgeOptions`. Bridge
  throws `SessionLimitExceededError` when `byId.size +
  inFlightSpawns.size >= max` BEFORE issuing a fresh spawn. Attaches
  to existing sessions (single scope) bypass the cap so an idle
  daemon's reconnects keep working at-capacity. `0` disables.
  Default of 20 sized below the design's N≈50 cliff (per-session
  ~30–50 MB RSS + FD pressure). HTTP route maps to 503 with
  `Retry-After: 5` and `code: session_limit_exceeded`. Tests cover:
  cap rejection under thread scope, attach-not-counted under single
  scope, `0` disables. Documented in CLI flags table + protocol
  Common-error section.

/health?deep=1 (Risk 3):
- Default `/health` stays cheap (no bridge access). With `?deep=1`
  the response includes `sessions` and `pendingPermissions` from
  the bridge — touches state so a wedged bridge surfaces as 503
  `{status: "degraded"}` instead of "200 ok" on a zombie daemon
  (the `k8s rolling deploy will see healthy` failure mode chiga0
  flagged). Loopback-vs-non-loopback bearer-exempt logic from the
  earlier A8dZT fix is preserved via a shared handler. Tests cover:
  cheap default, deep response shape, throwing-getter → 503.

* fix(serve,sdk,docs): close 9 review threads — req.on('close') prompt-cancel bug + doc + types (#3803)

Critical correctness:
- BQAnZ (server.ts:225): `POST /session/:id/prompt` wired
  cancellation to `req.on('close')` — but Node's `IncomingMessage`
  fires that event when the request body has been fully consumed,
  even when the client is still listening for the response. Result:
  ordinary prompt calls were getting cancelled the moment their
  upload finished, returning `{stopReason: "cancelled"}` instead
  of completing. Switched to `res.on('close')` guarded by
  `!res.writableEnded` (the documented "client gave up before we
  could send the response" pattern, same as the POST /session
  disconnect-detection from earlier in the PR).

Already addressed earlier — resolve as ack:
- BQAna (httpAcpBridge.ts:767): no global session cap. Already
  shipped in commit 66ffd7cc6 — `--max-sessions` flag + bridge
  enforces with `SessionLimitExceededError` mapped to 503; both
  in-flight spawns and live sessions count against the cap.

Doc fixes:
- BDAOf (DaemonClient.ts:49): `fetchTimeoutMs` JSDoc said it
  applies to "every non-streaming method including prompt", but
  `prompt()` actually bypasses fetchWithTimeout (model+tool turns
  are minutes-scale, can't be 30s-capped). Doc now lists the
  short-lived methods explicitly and notes prompt's exemption.
- BDAPY (qwen-serve-protocol.md:283): blockquote was broken — the
  `POST /session/:id/cancel` line was missing the leading `>` and
  a stray "- POST /session/:id/cancel." rendered orphaned outside
  the quote. Reformatted as a single coherent quote.

Reviewer-tooling resilience:
- BQAnf / BQAng (integration-tests/...:325/185): added explicit
  `DaemonSessionSummary` type to two `.find` / `.every` callbacks.
  Local typecheck infers the type fine via the SDK's source
  declarations; the reviewer's environment resolves
  `@qwen-code/sdk` against a possibly-stale `dist/index.d.ts`
  (per `integration-tests/tsconfig.json` `paths` mapping) and the
  `s` parameter widens to `any`. Annotation makes both envs happy.

Reviewer-only artifacts (no code action):
- BQAnb / BQAnc (integration-tests/...:26/30) — same SDK-dist
  staleness; the imports are correct and resolve fine when
  `packages/sdk-typescript` has been built.
- BQAni (server.test.ts:8 supertest module not found) — Node 20
  setup blocker the reviewer noted; resolves cleanly under
  Node >=22 (our declared engines floor) with `npm install`.

* fix(serve,sdk,test): close 7 review threads — fetchTimeoutMs negative + bridge-error context + perm scope contract (#3803)

Real fixes:
- BQPRo (DaemonClient.ts:136): `fetchTimeoutMs` accepted any number,
  including negatives that would slip past the `Number.isFinite`
  check inside `fetchWithTimeout` and fire `setTimeout(-1)` →
  immediate abort, killing every request before it could complete.
  Coerce non-positive / non-finite to 0 (the documented disable
  sentinel) at the constructor so call-site math stays simple.
- BQLdO (server.ts:725): `sendBridgeError` now accepts a `ctx`
  arg `{ route, sessionId }` folded into the stderr log line.
  Bare `ECONNRESET` / `ENOMEM` traces are no longer unattributable
  on a busy daemon — operators see `qwen serve: bridge error
  (POST /session/:id/prompt session=abc-123): ...`. All five route
  call sites pass context.
- BQI-6 (qwen-serve-streaming.test.ts:123): `sseFrames` test helper
  forwards `opts.signal` into `parseSseStream` so post-connect
  abort terminates iteration immediately (the parser's own abort-
  -wired-to-reader.cancel landed earlier; this just plumbs through
  the test harness).

Doc / contract:
- BQNqL / BQNqM (httpAcpBridge.ts:692, server.ts:199):
  `cancelPendingForSession` cancelling all session permissions on
  client disconnect is intentional under the per-session FIFO + ACP
  spec — permissions are issued inline DURING an active prompt,
  the agent awaits them, so the only outstanding permissions at
  any moment belong to the prompt being cancelled. Cross-client
  caveat (B's vote 404s when A disconnects mid-A's-prompt) is
  the right behavior — a vote on a cancelled-prompt's permission
  wouldn't drive the agent forward. Documented the scope contract
  + multi-client caveat in `cancelPendingForSession` JSDoc.

Already addressed (resolve as ack):
- BQI-c (qwen-serve-protocol.md): blockquote was already
  reformatted in the previous round (`POST /session/:id/cancel`
  now sits inline on a single quoted line); copilot reviewed an
  older commit.
- BQI-v (DaemonClient.ts): `fetchTimeoutMs` JSDoc was already
  updated last round to explicitly note `prompt()` is excluded;
  copilot reviewed the older shape.

* fix(serve,test,docs): close 6 review threads — TEST_CLI_PATH + Stage 2 markers + SSE phantom-conn warning (#3803)

Real fix:
- BQpu6 / BQpvW (integration-tests/cli/...): both qwen-serve test
  files hardcoded `../../packages/cli/dist/index.js`, while the
  rest of the integration suite reads `process.env.TEST_CLI_PATH`
  (set by `globalSetup.ts` to the root `dist/cli.js` bundle). The
  difference made our tests sensitive to which build step
  (`build` vs `bundle`) ran last. Now read `TEST_CLI_PATH` first,
  fall back to per-package dist for direct vitest invocations
  that bypass globalSetup.

Operator-facing doc:
- BQsOD (server.ts:497 KNOWN GAP): added an operator warning to
  `docs/users/qwen-serve.md`'s threat-model section about phantom
  SSE connections behind NATs that swallow TCP RSTs (kernel
  keepalive ~2h Linux default → can accumulate to the 256-conn
  ceiling on `--hostname 0.0.0.0` deployments). Stage 2 will add
  application-level idle deadline; until then operators on such
  networks may want to lower `server.keepAliveTimeout` via reverse
  proxy.

Stage 2 maintenance markers (no code change, just visible TODOs):
- BQsOA (httpAcpBridge.ts:1247): added `FIXME(stage-2)` on the
  sync `realpathSync.native` call so the Stage 2 in-process
  refactor doesn't ship without removing this event-loop-blocking
  syscall.
- BQsOB (server.ts:243): added a SECURITY NOTE on the
  `...(body as object)` passthrough explaining the spec-defined
  `_meta` forwarding contract + the rule that an explicit pick is
  required if any new bridge field starts being trusted by name.
  Pattern repeats on cancel/model — note covers all four sites.
- BQsOF (httpAcpBridge.ts:1041): `FIXME(stage-2)` noting that
  `setSessionModel` reuses `initTimeoutMs` (default 10s) for the
  in-flight model swap — conceptually distinct from cold-start
  init, currently sharing only by coincidence; Stage 2 should
  split into `modelSwitchTimeoutMs` and remove the no-abort
  `withTimeout` race-condition once ACP exposes a cancel signal
  for `unstable_setSessionModel`.

* fix(serve): close 4 review threads — unhandled rejection + maxSessions plumbing + 2 docs

- httpAcpBridge.sendPrompt: attach .catch(() => {}) to the
  abort-listener cleanup chain. The chain is `racedPromise.finally
  (...)` and we never await it; if `racedPromise` rejects, the
  finally returns a rejected promise that surfaces as an unhandled
  rejection (Node's default behavior on unhandled rejection is
  process termination). The route's own catch handles the original
  rejection — only the cleanup chain needs the swallow.
- httpAcpBridge.sendPrompt: FIXME(stage-2) for absolute prompt
  deadline — buggy agent ignoring cancel + alive channel = slow
  prompt-promise leak.
- server.createServeApp: forward opts.maxSessions when constructing
  the default bridge. Direct callers (tests, embeds) were silently
  falling back to DEFAULT_MAX_SESSIONS (20); only the runQwenServe
  path piped the option through.
- docs/users/qwen-serve.md: clarify Host allowlist is loopback-only;
  non-loopback binds rely on bearer + operator-managed front proxy.

* docs(sdk): close 1 review thread — sse.ts MAX_BUF_CHARS docstring lead-line said "bytes"

Doc lead-line claimed "Hard cap on accumulated unread bytes" while the
implementation enforces the cap via `buf.length` (UTF-16 code units),
which the rest of the same docstring already correctly explained.
Fix the lead-line so a reader skimming the first sentence isn't
misled.

The runtime error message and constant name (MAX_BUF_CHARS) already
say "code units" — only the docstring lead-line needed alignment.

* fix(serve,sdk): close 5 review threads — disconnect/attach race + 3 spec fixes + 1 doc

- httpAcpBridge: add SessionEntry.attachCount + new
  killSession({requireZeroAttaches:true}) opt to fix the BQ9tV race.
  When client A spawned (attached:false) but disconnected mid-spawn,
  A's disconnect-reaper (server.ts) could tear down a session that
  client B had just attached to. spawnOrAttach now bumps attachCount
  on each attached:true return, and killSession with the new opt
  bails when attachCount > 0. The check + the eager byId/byWorkspace
  deletes both run in killSession's synchronous prefix, so the
  guard is atomic across the await boundary.
- server.ts disconnect-reap path now passes requireZeroAttaches:true.
- loopbackBinds.ts: lowercase the operator-supplied hostname before
  Set lookup so --hostname Localhost / LOCALHOST aren't forced to
  require a token. Aligns boot-time detection with the runtime
  Host-header check (auth.ts already lowercases).
- auth.ts bearer parsing: accept HTAB (0x09) in addition to SP
  between scheme and credentials per RFC 7230 §3.2.6 BWS.
- sdk sse.ts parseFrame: guard against `null` / primitive JSON
  parses so the AsyncGenerator<DaemonEvent> contract isn't
  violated by a misbehaving proxy emitting `data: null`. Daemon
  itself never emits these — defense-in-depth only.
- docs/developers/qwen-serve-protocol.md: document the
  modelServiceId-rejection-on-fresh-session corner case + tell
  subscribers to pass Last-Event-ID:0 to replay the spawn-time
  model_switch_failed event from the ring.
- 3 new unit tests: BQ9tV positive + negative race paths,
  BQ9ze parseFrame null guard.

* fix(serve): close 4 review threads — 2 critical (NaN cap, stderr buffer) + IPv6 zone-id + deep doc

- httpAcpBridge maxSessions normalization (BRApy [Critical] gpt-5.5):
  NaN / negative values previously fell through `!Number.isFinite(...)`
  to `Infinity`, silently disabling the daemon's session cap (fail-OPEN
  on a typo). Now throw TypeError on NaN / negative; explicit 0 and
  Infinity remain valid "unlimited" sentinels.
- httpAcpBridge stderr line buffer (BRAp3 [Critical] gpt-5.5): the
  per-spawn `buf` accumulating stderr until `\n` had no length cap; a
  child that wrote a huge line or never emitted a newline could grow
  daemon memory unboundedly per session. Cap at 64 KiB per line and
  force-flush with a `[truncated]` marker — keeps the prefix-attributed
  log line, bounds memory, no content drop.
- runQwenServe.formatHostForUrl (BQ-6V copilot): RFC 6874 requires
  `%` in IPv6 zone IDs (e.g. `fe80::1%lo0`) to be percent-encoded as
  `%25` in URLs. Now encode on the raw-IPv6 path; already-bracketed
  input is the operator's responsibility.
- /health?deep=1 (BQ-6F copilot): the 503 path is unreachable for
  the real bridge (counter getters are simple Map-size accessors that
  don't throw). Reframed in code + protocol doc as INFORMATIONAL
  observability ("capacity dashboards, not real liveness"); keep the
  try/catch as defense-in-depth for custom bridge impls.
- 2 new unit tests: BRApy NaN/negative throws + 0/Infinity ok;
  BQ92B Localhost case-insensitive boot.

* fix(sdk): close 1 review thread — sse parseFrame tighter shape guard (BREsR followup to BQ9ze)

The previous parseFrame guard only rejected null/primitive JSON; arrays
and shape-incomplete objects still cast through to DaemonEvent. Tighten
to require: non-null non-array object with v === 1 and type: string.
Now the generator's static AsyncGenerator<DaemonEvent> type is a
genuine runtime guarantee instead of a structural hope.

Daemon never emits malformed frames (formatSseFrame always serializes
{v: 1, type: string, ...}); guard remains defense-in-depth against
misbehaving proxies / alternate implementations. Existing test fixtures
already conform to the shape so no other tests needed updating.

* fix(sdk): close 1 review thread — fetchWithTimeout keeps timer alive through body consumption (BRN1o)

Pre-fix: `fetchWithTimeout` cleared the timer in `finally` the moment
the underlying `fetch` resolved. But `fetch` resolves at headers, not
at body completion. A daemon or proxy that sent headers and then
stalled mid-body left `await res.json()` (and `failOnError`'s
`res.text()`) without any deadline — calls to `health()`, `capabilities()`,
`createOrAttachSession()`, `listWorkspaceSessions()`, `setSessionModel()`,
`cancel()`, `respondToPermission()` could hang indefinitely past
`fetchTimeoutMs`.

Refactor `fetchWithTimeout<T>` to take an optional `consume(res)`
callback whose execution is included in the timer scope. The composed
abort signal still flows through to fetch's body stream, so an
in-progress `res.json()` rejects cleanly when the timer fires. All
JSON-returning routes updated to pass the body-read code as the
callback. SSE (subscribeEvents) + prompt are unchanged: they bypass
fetchWithTimeout intentionally (long-lived).

Regression test: response with a never-emitting body that errors via
the composed AbortSignal — pre-fix would hang for 5s+, post-fix
rejects within ~80ms (configured timeout).

* fix(serve,sdk): close 8 review threads — coalescing race fix + --max-connections + 5 docs/cleanups

- httpAcpBridge spawnOrAttach (BRSCi [Critical] DeepSeek): the BQ9tV
  attachCount fix was incomplete for the in-flight coalescing path.
  When two callers await the same doSpawn and the second has a
  modelServiceId, the attach-bump landed AFTER an extra await for
  applyModelServiceId — leaving a microtask window in which A's
  killSession sync-prefix would still see attachCount==0 and reap a
  session B was about to receive. Move the bump to the very first
  sync step after `await inFlight` (and same in the direct-attach
  branch) so the bump-before-killSession ordering holds even when
  the model-switch yields. Test added for the coalescing-race path.
- commands/serve + serve/types + runQwenServe (BRQQb): add
  `--max-connections` flag (default 256), wired through ServeOptions
  and `server.maxConnections`. Operators with high-concurrency
  deployments can now tune the listener-level cap without waiting
  for Stage 2.
- commands/serve (BRQQZ): wrap `new Promise<never>(() => {})` in a
  named `blockForever()` helper so a future maintainer doesn't read
  the bare expression as a never-resolving-promise bug.
- auth.ts (BRQQd): rewrite the comment about HTAB BWS — clarify
  that the scheme→credentials separator is `1*SP` per RFC 9110
  §11.6.2, and HTAB is only accepted in the BWS *after* the SP.
  `Bearer\t<token>` (pure HTAB) is intentionally rejected.
- types.ts + qwen-serve-protocol.md (BRQQf): document
  `modelServices: []` is always empty in Stage 1 so SDK consumers
  don't build off it.
- qwen-serve.md (BRQQl + BRQQm): add operator note about subscribing
  to /events BEFORE posting modelServiceId on attach (otherwise the
  model_switch_failed event is missed). Document the four-layer load
  cap stack near --max-sessions so operators can size the related
  knobs together.
- sdk index (BRSCv): drop the historical `Daemon`-prefixed type
  aliases (`DaemonPromptRequest` / `DaemonSubscribeOptions`) for
  consistency with the other un-prefixed daemon-type exports. SDK is
  Stage-1-experimental with no shipping consumers.

* fix(sdk): close 1 review thread — sse parseFrame must not drop frames whose first line is a comment/retry (BRgq-)

Per the EventSource spec, comment lines (`:` prefix) and `retry:` are
line-level fields, not frame-level. The previous early return at the
top of `parseFrame` dropped the entire frame when its first line was
a comment or retry directive — meaning an intermediary that prepends
`: keep-alive` or `retry: 5000` to every frame would cause the
embedded `data:` payload to be silently lost.

Removed the `startsWith` guard. The line-level `data:` collection
loop already produces an empty `dataLines` array for pure-comment /
pure-retry frames, so the existing `if (dataLines.length === 0)
return undefined` branch still skips them — without dropping real
events that just happen to be preceded by a comment line.

Existing test still pins the standalone-comment / standalone-retry
behavior; new test pins the leading-comment + data-line case.

* docs(sdk): close 1 review thread — sse MAX_BUF_CHARS comment was overpromising byte-equivalence (BRker)

The previous wording suggested "one code unit ≈ one byte" for
mostly-ASCII content, then qualified it with mixed BMP / supplementary
caveats. Reviewer flagged that JS string.length isn't a reliable byte
proxy in either direction — engine string representation (V8 Latin-1
path vs UTF-16) makes the actual memory cost vary in ways the comment
didn't capture cleanly.

Rewrote to state plainly: cap measures code units, not bytes; intent
is "stop runaway non-SSE bodies", not exact memory accounting;
byte-precise bounds belong at a front proxy. Threshold and code
unchanged — only the comment.

* fix(serve): close 7 review threads — atomic write, read-size cap, force-exit on 2nd signal, doc fixes

- httpAcpBridge.writeTextFile (BSA0D): atomic write-then-rename via
  `<path>.<pid>.<ts>.tmp` + `fs.rename`. Closes the SIGKILL-mid-write
  truncation hole. Tmp file lives in the target's directory so the
  rename can't cross filesystem boundaries; cleaned up on rename
  failure.
- httpAcpBridge.readTextFile (BSA0E): `fs.stat` pre-check rejects
  files past 100 MiB so a `{ line: 1, limit: 10 }` against a 500 MB
  log doesn't allocate 500 MB of RSS just to return 10 lines.
- runQwenServe SIGINT/SIGTERM (BSA0K): second signal during drain
  forces `process.exit(1)` with a stderr message instead of silently
  no-oping. Standard daemon behavior — `^C^C` works.
- commands/serve --hostname help text (BRqFe): now mentions the full
  loopback set (127.0.0.1, localhost, ::1, [::1]) so IPv6 users
  aren't misled into thinking ::1 needs a token.
- runQwenServe boot-refusal error (BRqFy): same correction — error
  message now lists all loopback aliases the operator can rebind to.
- httpAcpBridge withTimeout doc (BSA0C): explicit Stage 2 follow-up
  marker for the modelSwitchTimedOut / model_switch_late_success
  observability gap (already a known limitation).
- server.errorPayload (BSA0G): documented the multi-tenant info-leak
  trade-off (Stage 1 single-user/small-team trust model accepts
  verbatim ACP error data) and pointed to a Stage 2 --redact-errors
  follow-up.
- 2 new tests: writeTextFile leaves no tmp turd; readTextFile
  rejects 200 MiB sparse file via the size cap.

* fix(sdk): close 1 review thread — sse parseFrame must validate optional `id` (BSP1-)

The previous shape guard only validated `v === 1` and `type: string`,
leaving `DaemonEvent.id: number | undefined` unchecked. A misbehaving
proxy emitting `data: {"id":"1","v":1,"type":"x",...}` would survive
the cast and break consumer resume logic — Last-Event-ID resume does
numeric comparisons against the monotonic counter, and a string id
silently corrupts that math.

Reject the frame entirely when `id` is present but not a finite safe
integer (`Number.isSafeInteger`). Negative integers and missing-id
both still pass; the daemon never emits negative ids in practice but
the guard's responsibility is the type-cast contract, not the
daemon's id-allocation policy.

New test covers: string id, float id, > MAX_SAFE_INTEGER id (all
rejected); negative-id, no-id, plain integer (all pass).

* docs(serve): Stage 1.5 markers from chiga0 follow-up architecture review (#3889 c4427773706)

chiga0's follow-up review explicitly states "None of the findings
here block Stage 1. That holds." All 6 findings are Stage 1.5
convergence work for when downstream consumers attach. None require
code changes for this PR.

Adding inline FIXME(stage-1.5) markers at the natural pivot points
so the future refactor has clear breadcrumbs back to the audit
comment, instead of Stage 1.5 implementers having to re-discover
the convergence story:

- types.ts STAGE1_FEATURES → finding 5 (capability registry +
  extMethod HTTP route).
- eventBus.ts EventBus class → finding 2 (lift to
  packages/event-bus, multi-consumer subscribe).
- httpAcpBridge.ts BridgeClient.requestPermission → finding 3
  (PermissionMediator + policy plugin point; closes prior chiga0
  Risk 2 too).
- httpAcpBridge.ts BridgeOptions → findings 1 + 4 (split into
  AcpChannel + Transport packages; thread FileSystemService through
  BridgeOptions).

No behavior change. Each marker links to the audit comment for
traceability.

* docs(serve): tighten Stage 1 scope framing + durability + Stage 1.5 must-haves (#3889 c4427875644)

chiga0's third review walks three downstream-consumer scenarios (IM
bot, mobile companion, IDE extension) against Stage 1's runtime
guarantees. The bottom-line concern is framing: the PR body promises
"real workloads" but the protocol surface is sized for demo /
single-user / never-crashes. Reviewer offers two paths — tighten the
framing or add 7 must-haves to Stage 1.5. Author classifies all 10
must-haves as Stage 1.5/2, none as Stage 1 changes.

In-scope action for this PR (doc-only, no behavior change):

- `docs/users/qwen-serve.md` "Status" block: explicit scope-honesty
  note — Stage 1 is sized for prototyping clients + local
  single-user/small-team. Production-grade multi-client / mobile /
  flaky-network workloads need Stage 1.5+ guarantees.
- New "Durability model" section spelling out sessions-are-ephemeral
  (closes must-have 10): no resume on child crash / daemon restart,
  ring-overflow on long disconnects, writeTextFile atomic across
  crash but not across restart.
- New "Stage 1.5+ runtime guarantees" section listing the 10
  must-haves (blockers 1-3, reliability 4-7, ergonomics 8-10) with a
  link back to the audit comment for traceability.
- `httpAcpBridge.ts` BridgeOptions.sessionScope: FIXME(stage-1.5)
  marker referencing must-have 1 (per-request override), since this
  is the most prominent client-facing lock-in risk.

No code behavior changes — this is roadmap commentary surfaced into
the artifacts where downstream integrators will look (user docs +
code pivot points).

* fix(serve): close 2 correctness findings from tanzhenxin review

Two bugs surfaced in the CHANGES_REQUESTED review:

Issue 1 — `--max-connections 0` silently bricks the daemon on Node 22:
- Docs say "Set to 0 to disable" and the code did
  `server.maxConnections = opts.maxConnections ?? 256`, but on Node
  22.15.0 setting `server.maxConnections = 0` makes the listener
  refuse EVERY connection (every fetch → SocketError other side
  closed). The operator following the documented disable path got a
  daemon that boots cleanly, logs "listening on …", and then
  silently rejects health/session/SSE.
- Fix: treat 0 / Infinity / non-finite as "leave the property
  unset" (Node's default = unlimited at this layer). Reviewer
  verified the Node 22 quirk; verified locally that 100 still binds
  the cap, 0 and Infinity now both accept connections.

Issue 2 — Orphan agent child when both coalesced spawnOrAttach callers
disconnect:
- The BQ9tV `attachCount` race guard is monotonic. Once B's
  `spawnOrAttach` bumps it (synchronously, before the route handler
  can see `!res.writable`), the spawn-owner A's disconnect-reaper
  sees attachCount > 0 and skips the reap — permanently. If B then
  also disconnects, neither A nor B's route handler does anything,
  and the agent child stays alive with no client knowing the id.
- Fix: add `bridge.detachClient(sessionId)` that decrements
  attachCount and reaps iff (attachCount == 0 && subscriberCount ==
  0). Server's `POST /session` handler calls it on the
  `!res.writable && session.attached === true` branch (symmetric to
  the existing spawn-owner-disconnect reap).
- Subscriber-count check prevents reaping when a third client C is
  already on SSE — `detachClient` only fires when the session has
  no live consumers at all.

2 new tests for issue 1 (max-connections 0 + Infinity still accept
connections; 100 still binds as supplied). 2 new tests for issue 2
(detach reaps when alone; detach preserves when SSE subscriber
exists). fakeBridge updated with the new method.

* fix(serve): close 3 review threads — maxConnections NaN/negative validation + doc fix + close-contract honesty

- runQwenServe maxConnections validation (BUF9-): NaN / negative
  values previously slipped through `cap > 0 && Number.isFinite(cap)`
  to "leave unset = unlimited", silently fail-OPEN on a CLI typo and
  weakening the DoS / FD-exhaustion guard. Now throw TypeError
  upfront (before `app.listen()`) so a malformed cap fails the
  `runQwenServe` promise instead of escaping as an uncaught
  exception from the listen callback.
- types.ts maxConnections doc (BUb7C): comment said "Node treats 0
  as unlimited" but the runtime fix treats 0 as a sentinel and
  leaves `server.maxConnections` unset (Node 22 quirk). Updated to
  match.
- runQwenServe close()/force-timeout (BUb7h): the 100ms eager
  `setTimeout(() => finish(), 100)` after `closeAllConnections()`
  resolved the close promise WITHOUT waiting for `server.close()`'s
  callback — breaking the "fully closed" contract. Now: force-close
  just accelerates `server.close` by killing sockets; we still wait
  on the close callback. A secondary 2s deadline handles the
  pathological "server.close never fires" case (kernel-stuck
  socket) with a logged warning, so shutdown stays bounded.

* docs(serve): close 8 review threads — code-comment clarity + 3 new Stage 1 known gaps

8 threads in a single Claude Opus 4.7 review pass — 4 duplicate
existing chiga0 finding FIXME markers, 1 code-comment clarity, 3
real new doc-worthy Stage 1 known gaps.

Code clarity (BUy4U):
- The shutdown re-check at doSpawn (`if (shuttingDown) { kill; throw }`)
  is the LOAD-BEARING correctness contract, not a band-aid as the
  reviewer framed it. Updated comment to explain: shutdown() runs
  tear-down in parallel with awaiting `inFlightSpawns` (faster
  fan-out); the re-check catches spawns whose `newSession` returns
  AFTER the flag flipped. The alternative — await all inflight to
  settle BEFORE snapshotting byId — is cleaner to reason about but
  serializes shutdown by up to `initTimeoutMs` (10s) before any live
  session starts tearing down. Documented the trade-off.

New Stage 1 known gaps in docs/users/qwen-serve.md threat model:
- BUy4H (permission auth daemon-global): cross-session vote risk
  acceptable under Stage 1 single-user / small-team trust model;
  Stage 1.5 will scope to `POST /session/:id/permission/:requestId`
  + session-scoped pending map + per-client identity (closes
  must-have #3 from the downstream review).
- BUy4L (10 MB body limit on /prompt): multimodal content past
  10 MB hits a cliff; workaround via path reference; Stage 1.5
  accepts chunked encoding.
- BUy4e (CORS deny blocks `packages/webui`): document explicit
  deployment options (Electron/Tauri shell, same-origin reverse
  proxy); Stage 1.5 adds `--allow-origin <pattern>` for opt-in
  named frontends.

Already-marked duplicates (BUy4O, BUy4P, BUy4X, BUy4b) — covered by
existing `FIXME(stage-1.5, chiga0 finding N)` / `FIXME(stage-2)`
markers from prior rounds.

* fix(serve): close 1 review thread — catch --hostname localhost:4170 typo upfront (BU-sh)

The previous code path for unbracketed `host:port` typos went:
1. Loopback check fails (`localhost:4170` doesn't match the
   loopback set after lowercase normalization).
2. Throw "Refusing to bind localhost:4170:0 without a bearer token"
   — misleading because the operator's real bug is the colon in the
   hostname, not the missing token.

Alternative path if a token IS supplied: hostname flows through to
`formatHostForUrl` which sees the `:` and treats as IPv6, wrapping
to `[localhost:4170]:port` in the printed URL. Then `app.listen()`
fails with ENOTFOUND. Triple-unhelpful failure mode.

Fix: catch the typo BEFORE the loopback/token check. Unbracketed
input with exactly one `:` is unambiguously the host:port shape —
raw IPv6 literals always have ≥2 colons (shortest is `::`), and
bracketed IPv6 is handled by its own form check below.

Error message suggests the corrected form
(`--hostname localhost --port 4170`).

* docs(serve): two new Stage 1 scope boundaries (option A + option iii) from LaZzyMan reviews

LaZzyMan's two-part review surfaced two structural framing concerns
distinct from the chiga0 roadmap items. Neither requires code changes
in this PR — they want explicit scope honesty in the user docs:

1. TUI super-client framing (option A from the review): TUI UI is
   strictly larger than the wire protocol. The ~15 Ink dialogs and
   `local-jsx` slash commands are local-only; mutating commands like
   `/approval-mode`, `/memory`, `/mcp`, `/agents`, `/tools`, `/auth`,
   `/init` change agent behavior but emit no wire event. Documenting
   remote clients as sharing the agent↔user conversation axis only,
   NOT the full TUI session state. Implementers told to re-fetch
   state on reconnect, not rely on incremental events.

2. N parallel sessions cost N× (option iii from the comment): the
   "1 daemon = 1 session" axiom means N concurrent sessions on one
   workspace = N daemons with zero resource sharing. Concrete cost
   table at N=5 (~1.5-2.5 GB RSS, 15 MCP processes, 5× OAuth refresh)
   so users hit the wall with eyes open. Won't-fix on the main-line
   Stage 1/1.5/2 roadmap; alternatives (#3803 §21 Path A/B, in-project
   sidecars) materially change the architecture in ways we won't
   commit to mid-Stage-1. Peer-agent comparison noted (Cursor /
   Continue / Claude Code / OpenCode / Gemini CLI all do
   single-process multi-session).

Both choices are intentionally the less-ambitious option; the
substantive alternative (option B for taxonomy, option i/ii for N:1)
moves to #3803 if real-usage data ever justifies it.

* docs(serve): clarify option-A across Mode 1 (headless) vs Mode 2 (TUI co-host)

Previous wording treated "TUI is a super-client" as universal truth.
But Stage 1's actual shipping configuration is HEADLESS — no TUI
shell runs inside the daemon — and in that mode the slash commands
listed (`/approval-mode`, `/memory`, `/mcp`, `/agents`, `/tools`,
`/auth`, `/init`) simply don't exist. Session state is boot-time-
frozen from settings + disk, with only `/model` mutable via HTTP.

Restructured the section to split the consequences:

- **Mode 1 (headless `qwen serve`, this PR)**: no TUI exists; session
  state is boot-time-frozen + `model_switched` over HTTP; remote
  clients see the FULL session state; no drift possible.
- **Mode 2 (Stage 1.5 `qwen --serve` co-hosted TUI, future)**: TUI
  exists alongside remote clients; TUI slash commands mutate
  session state with no wire events; remote clients see a strict
  subset; drift possible — re-fetch state on reconnect.

The original "super-client" framing applies cleanly only to Mode 2.
Mode 1 has no asymmetry — same option-A choice, different
consequences.

* fix(serve,sdk): close 12 review threads — 6 critical bugs + 6 follow-ups

Six critical correctness fixes from the latest review pass:

- httpAcpBridge.readTextFile (BX8YO): reject non-regular files via
  `stats.isFile()`. Char devices / FIFOs / procfs entries report
  `size: 0` but stream unbounded data; the 100 MiB cap wasn't
  enough. New `describeStatKind()` helper for human-readable error
  message ("named pipe (FIFO)" / "character device" / etc.).
- httpAcpBridge.writeTextFile (BX8Yp + BX9_h): temp filename now
  includes randomUUID + exclusive flag `wx`. PID + Date.now() alone
  collides under concurrent writes within the same ms (sessionScope:
  'thread' or coalesced spawns on same workspace). Exclusive mode
  fails fast on any residual collision instead of silent overwrite.
- httpAcpBridge.writeTextFile (BX8Yw): resolve via `fs.realpath`
  before write-then-rename so symlinks are preserved. Pre-fix
  rename replaced the symlink with a regular file, leaving the
  real target unchanged while the write appeared successful.
  Test added covering both regular targets and symlink targets.
- server.parseLastEventId (BX9_I): log a stderr breadcrumb when
  rejecting a non-empty non-decimal Last-Event-ID header. Pre-fix,
  clients with a malformed resume header silently resumed from 0
  and lost every event buffered during the disconnect with zero
  evidence in logs.
- httpAcpBridge channel.exited (BX9_P): thread {exitCode,
  signalCode} from the spawn factory through `session_died` event
  payload. Operators triaging a crash can now read the cause from
  the SSE frame instead of grepping daemon stderr for the child's
  pid.
- httpAcpBridge spawnOrAttach in-flight coalesce path (BX9_U):
  defensive re-check that `byId.get()` is still defined after
  attachCount++ — if a concurrent kill tore down the entry, throw
  `SessionNotFoundError` instead of returning `attached: true` with
  a zombie sessionId.

Six follow-ups in the same diff:

- httpAcpBridge attachCount comment (BVryk + BWGSL): outdated
  "monotonic, we never decrement" claim — detachClient() now
  decrements. Comment rewritten to state the actual invariant
  ("reflects clients whose response was written or is about to be").
- runQwenServe.close() contract (BV-qW): bridge.shutdown errors are
  now propagated through the close promise (was: silently caught +
  resolved success). onSignal exits 1 instead of 0 when teardown
  fails. Server.close error takes precedence; bridge error is the
  fallback.
- sdk sse parseFrame id guard (BX8Y1): require id >= 1 (was: any
  safe integer including negative). The daemon's Last-Event-ID
  parser only accepts non-negative decimals and EventBus emits ids
  starting at 1; negative ids on the wire diverge from resume math.
  Existing test updated.
- runQwenServe server error listener (BX9_i): swap
  `server.once('error', reject)` for a persistent `server.on('error',
  log)` after listening. Pre-fix, a post-boot error (EMFILE etc.)
  was unhandled and crashed the daemon.

Tests: +2 for BX8YO (FIFO) and BX8Yw (symlink preserve). Test
infrastructure updated for the new `channel.exited` Promise<ExitInfo
| undefined> signature.

* fix(serve,sdk): close 4 more review threads — frame-scan perf + publish contract + AbortError narrowing + cross-module doc

- sse consumeFrames perf (BX9_a): short-circuit the LF path first.
  In the common LF-only case the CRLF scan was traversing the
  entire remaining buffer for nothing; now CRLF is only scanned
  when LF is absent or potentially appears later than a CRLF
  separator (mixed-encoding edge).
- EventBus.publish contract (BX9_p): explicit JSDoc says publish
  NEVER THROWS (closed-bus returns undefined, subscriber-enqueue
  errors caught internally). Historical try/catch wrappers in
  httpAcpBridge.ts are defense-in-depth, not load-bearing; new
  callers should not add them.
- canonicalizeWorkspace doc (BX9_q): elevate the cross-module
  contract from "undocumented" to explicit — config.ts /
  settings.ts / sandbox.ts / this file all canonicalize the same
  way for sessionScope: 'single' re-attach. A divergence silently
  forks sessions per spelling. The Stage 1.5 @qwen-code/acp-bridge
  lift (chiga0 finding 1) is the natural place to extract a shared
  primitive; until then, any change to those modules needs a
  matching change here.
- POST /session/:id/prompt AbortError swallow (BX9_k): narrow the
  swallow to only fire when `abort.signal.aborted` is true. The
  previous blanket `err.name === 'AbortError'` would also silently
  drop AbortErrors raised internally by the bridge (e.g. child
  process aborting mid-prompt), leaving the client with no response
  and no log trace.

* docs(serve): correct N:1 framing — qwen-code's ACP agent natively supports multi-session

Maintainer feedback (verified against the code): the ACP agent in
packages/cli/src/acp-integration/acpAgent.ts:194 has
`private sessions: Map<string, Session>` — one `qwen --acp` child
natively hosts multiple sessions, and yiliang114's VSCode plugin
already uses this pattern. The earlier "qwen-code is the only entry
treating no multi-session resource sharing as a feature" framing
(from the LaZzyMan reply + docs) was wrong.

Stage 1 bridge in this PR doesn't yet leverage that capability — it
spawns one `qwen --acp` child per session for simplicity (easier
debugging, no cross-session interference during initial
stabilization). That's a bridge-side design choice, not an ACP
limitation.

Revised docs/users/qwen-serve.md:

- "N parallel sessions cost N×" section now distinguishes Stage 1
  bridge (current N× cost) from Stage 1.5 bridge (multi-session per
  child, ~1/5th the cost at N=5). Cost table extended with the
  Stage 1.5 column. No more "won't fix on main-line roadmap"
  framing — the fix is a bridge refactor that pairs naturally with
  chiga0 finding 1 (`@qwen-code/acp-bridge` package lift), NOT the
  #3803 §21 Path A/B/C intra-daemon multi-session workstream
  (qwen-code already does that at the agent layer).
- Status block's "Scope honesty" note: removed the implicit
  permanent-cost framing; replaced with explicit "Stage 1 bridge
  pays N×; Stage 1.5 refactor closes the gap" pointer.
- Peer-agent comparison rewritten: qwen-code's *agent* matches
  Cursor / Continue / Claude Code / OpenCode / Gemini CLI on
  single-process multi-session; the bridge is the artifact.

`httpAcpBridge.ts:doSpawn`: inline `FIXME(stage-1.5)` marker
explaining the refactor (keep one child per workspace, call
`connection.newSession()` multiple times on the same channel), with
the link to `acpAgent.ts:194` so a future maintainer doesn't
re-derive the discovery.

* feat(serve): Stage 1 bridge now multiplexes sessions on one qwen --acp child per workspace

Per LaZzyMan / tanzhenxin reviews + maintainer feedback verified
against `packages/cli/src/acp-integration/acpAgent.ts:194` (the
agent's `private sessions: Map<string, Session>`): qwen-code's ACP
agent natively supports multi-session in one child process. The
Stage 1 bridge previously spawned one child per session for
simplicity, paying N× memory / OAuth / file-cache cost. Now refactored
to leverage the agent's existing multi-session capability — one
`qwen --acp` child per workspace, N sessions share it via
`connection.newSession({cwd, mcpServers})`.

Cost at N=5 sessions on same workspace:
- Before: 300-500 MB RSS (5 children), 5× OAuth refresh, 5× file
  cache, 5× CLAUDE.md parse, 5× cold start
- After: 60-100 MB RSS (one child), one OAuth path, shared
  FileReadCache, parsed once, <200ms cold start after first session

Architecture changes:

- New `ChannelInfo` type holds the shared channel + connection +
  BridgeClient + the set of session ids multiplexing on it.
- New `byWorkspaceChannel: Map<workspace, ChannelInfo>` + new
  `inFlightChannelSpawns` coalesce-map for concurrent channel
  creation.
- New `getOrCreateChannel(workspaceKey)` helper: reuse existing
  channel or spawn one (with `initialize` happening exactly once
  per channel, not once per session). Coalesced via
  `inFlightChannelSpawns` so two parallel callers don't both spawn.
- `doSpawn` now calls `getOrCreateChannel` + `connection.newSession`
  separately (was: spawn+initialize+newSession together per session).
- `BridgeClient` updated: `resolveEntry(sessionId?)` dispatches by
  the sessionId ACP carries in each request — one BridgeClient now
  serves all sessions on its channel. `sessionUpdate`,
  `requestPermission`, etc. all pass `params.sessionId`.
- `channel.exited` cleanup moved into `getOrCreateChannel` and now
  tears down ALL sessions on the channel (not one). Each session
  gets its own `session_died` event so SSE subscribers learn the
  bad news on their own stream.
- `killSession` now removes session from `channelInfo.sessionIds`
  and kills the channel ONLY when its sessionIds set drops to zero.
  Other sessions on the same channel keep running.
- `shutdown` tears down channels (the deduplicated set) and awaits
  both inFlightSpawns and inFlightChannelSpawns.

Cross-workspace channel sharing intentionally NOT done — `acpAgent.ts:
601 (this.settings = loadSettings(cwd))` reloads settings on each
newSession call with a different cwd, so different workspaces in
one child would step on each other. One channel per workspace is
the safe scope.

MCP server children stay per-session for now (each session can have
different mcpServers config). Stage 1.5 follow-up: refcount MCP
children by (workspace, config-hash) so identical configs share.

Tests:
- Updated `spawns fresh per call under sessionScope:thread` → now
  expects `handles.length === 1` (channel reused) but
  `sessionCount === 2` (distinct sessions).
- New: `Stage 1.5 multi-session: N sessions on same workspace share
  ONE channel` (5 sessions, 1 factoryCalls).
- New: `Stage 1.5: killSession on one of N sessions does NOT kill
  the shared channel` (kill 2 of 3, channel still alive; kill 3rd,
  channel killed).
- New: `Stage 1.5: channel.exited tears down ALL multiplexed
  sessions` (each gets its own session_died).
- FakeAgent.newSession suffixes call-count so multiple newSession
  calls on the same channel return distinct ids (matches real
  ACP behavior).

Docs:
- `docs/users/qwen-serve.md` N:1 section rewritten — no longer
  "Stage 1 pays N×, Stage 1.5 fixes". Cost table reflects current
  shared-channel architecture; MCP refcount called out as the one
  remaining Stage 1.5 follow-up; "1 daemon = 1 session" framing
  removed from related sections.

* fix(serve,sdk): close 12 review threads — 6 critical bugs + 6 follow-ups

Critical fixes:

- server.ts safeBody() helper (BZ9uv/va/vs/wD + Bd10m + Bd1zz):
  prototype-pollution sanitization at the body-spread boundary.
  `__proto__` / `constructor` / `prototype` keys are stripped and
  the result is an Object.create(null) target. Replaces 5 sites of
  copy-pasted `typeof req.body === 'object'...` preamble + makes
  the `...(body as object)` spread sites safe.
- httpAcpBridge requestPermission (Bd1yh): per-request wall-clock
  deadline (default 5 min, configurable via
  `BridgeOptions.permissionResponseTimeoutMs`). Without this, an
  agent calling requestPermission with no SSE subscriber connected
  would hang the per-session FIFO forever. After deadline, resolve
  as cancelled + log stderr warning.
- httpAcpBridge requestPermission (Bd1z5): per-session pending
  permissions cap (default 64, configurable via
  `BridgeOptions.maxPendingPermissionsPerSession`). New requests
  past the cap resolve as cancelled with stderr warning. Prevents
  a chatty agent from growing pendingPermissions unboundedly.
- runQwenServe onSignal double-signal force-exit (Bd1y6): new
  `bridge.killAllSync()` + `AcpChannel.killSync()` method
  synchronously SIGKILLs every live qwen --acp child BEFORE
  `process.exit(1)`. Previously double-Ctrl+C bypassed the async
  bridge.shutdown() and left children running as orphans.
- server.ts SSE subscriber-limit response (Bd1zJ): 429 +
  Retry-After instead of 200 + stream_error frame. EventSource
  treats 4xx as terminal (no auto-reconnect); the previous
  200+close-stream triggered EventSource's reconnect loop,
  amplifying the load the limit existed to prevent.
- doSpawn ghost sessionId guard (Bd1zc): re-check byId.has() after
  applyModelServiceId(). The model-switch yields and can race
  channel.exited; without this, caller got HTTP 200 with a
  sessionId that 404s on every subsequent request.

Follow-ups in the same diff:

- sse.ts consumeFrames CRLF scan comment (BcRh_): the comment
  claimed the CRLF scan was bounded to `[cursor, lf)`, but Node's
  `indexOf` has no upper bound. Rewrote to describe what the code
  actually does (scan full remainder; only USE the result if it
  falls before `lf`).
- sse.ts SseFramingError export (Bd10T): typed error class for
  framing-level failures so SDK consumers can distinguish "upstream
  isn't SSE" from generic network errors via instanceof check.
  Re-exported from @qwen-code/sdk.
- protocol doc /health auth (Bctum): document the loopback
  exemption — `/health` doesn't require Authorization on loopback
  binds even when a token is configured. Matches `createServeApp`'s
  registration order.

Bd1xz (cross-session permission escalation) acknowledged as
duplicate of BUy4H — already documented as a known Stage 1 gap
under the single-user / small-team trust model; fix is Stage 1.5
must-have #3 (per-client identity + per-session permission scope).

Tests:
- New: prototype-pollution test verifies `__proto__` spread
  doesn't pollute `Object.prototype`.
- All 70 server + 55 bridge + 16 daemon-sse + 60 DaemonClient
  tests pass (203 total).

`killSync()` stubbed on every inline test channel fake; fake
bridge has `killAllSync()`.

* fix(sdk): close 2 review threads — consumeFrames CRLF scan now actually bounded (BeFHR + BeFId)

Previous attempt at the BX9_a perf optimization left the CRLF scan
running over the full remainder of `buf` on every loop iteration
where an LF separator existed — only the LF-not-found fallback path
was actually bounded. Comments claimed the CRLF scan was restricted
to `[cursor, lf)` or "only fires when needed", but Node's
`String.indexOf` doesn't accept an end index.

Bound the scan via a `buf.slice(cursor, lf)` window before
`indexOf` so the assertion is now true: in the common LF-only case
we pay one full scan (for LF) plus one bounded scan over the
matched frame's bytes (small).

* fix(serve): close 3 review threads + Windows test skip — dangling symlink, no-sessionId throw

- httpAcpBridge.writeTextFile BfFvO: dangling-symlink case. `fs.realpath`
  throws ENOENT for a symlink whose target doesn't exist, and the
  blanket catch silently fell back to writing through the symlink
  itself — `rename(tmp, params.path)` then replaced the symlink with
  a regular file, exactly the bug BX8Yw was supposed to fix. Use
  `fs.readlink` to disambiguate "truly non-existent" from "dangling
  symlink"; resolve the dangling target manually and write through
  to it so the symlink stays a symlink. Regression test added.
- httpAcpBridge BridgeClient resolveEntry BfFut: defensive throw on
  no-sessionId ACP call against a multi-session channel. ACP today
  carries sessionId on every per-session call, but if a future
  no-sessionId call lands, silently dropping it on a multi-session
  channel would be invisible.
- httpAcpBridge.test.ts BX8YO Windows skip: hard-skip via
  `process.platform === 'win32'`. Git-Bash etc. ship a `mkfifo`
  binary that degenerates on Windows (creates a regular file or
  silently no-ops), making the assertion match the wrong error
  shape. Linux + macOS coverage is sufficient for a platform-
  agnostic `!stats.isFile()` check.

BfFvW (CRLF scan comment) was already addressed in 0a4146a02 — the
reviewer's diff was against the pre-fix version.

* fix(serve): close 6 review threads — 4 critical bugs + 2 doc updates

Critical fixes:

- httpAcpBridge.doSpawn newSession-failure cleanup (BkwQA): if
  `connection.newSession()` throws on a freshly-created channel
  whose sessionIds set is empty, tear the channel down rather than
  leaking the empty `qwen --acp` child in `byWorkspaceChannel`
  (invisible to `sessionCount` / `maxSessions`). Channels with
  other live sessions still survive — only the truly-empty case
  reaps.
- httpAcpBridge.detachClient + killSession tombstone (BkwQP):
  detachClient no longer reaps live sessions. Scenario: A spawns
  (attached: false, hasn't opened SSE yet), B attaches
  (attachCount: 1), B disconnects → previous code reaped A's
  still-valid session. New behavior:
  * killSession({ requireZeroAttaches: true }) sets
    `entry.spawnOwnerWantedKill = true` when it bails on
    attachCount > 0 (instead of just returning).
  * detachClient ONLY decrements attachCount. It completes the
    deferred reap only when (spawnOwnerWantedKill && attachCount
    === 0 && subscriberCount === 0).
  * Both-disconnected case still works (reap completes via B's
    detachClient seeing the tombstone). Spawn-owner-alive case
    no longer reaps. Existing tanzhenxin-issue-2 test rewritten;
    new test pins the spawn-owner-alive case.
- httpAcpBridge.writeTextFile mode preservation (BkwQW): stat the
  target before writing; if it exists, chmod the tmp file to the
  preserved mode (and chown owner/group — best-effort, EPERM
  ignored for non-root). Previously a 0600 secret/config edit
  would downgrade to umask-default 0644, exposing contents to
  other local users.
- bridge.respondToPermission option-ID validation (BkwQI): new
  `InvalidPermissionOptionError` thrown when the voter's `optionId`
  isn't in the set of options the agent originally offered in the
  `permission_request` event. PendingPermission now carries
  `allowedOptionIds`. Server route catches the error → 400 (vs.
  404 for unknown requestId). Prevents authenticated clients from
  forging hidden outcomes like `ProceedAlways*` when the prompt's
  `hideAlwaysAllow` policy intentionally suppressed them.

Doc fixes:

- httpAcpBridge top-of-file (BkdCg) + types.ts ServeMode (BkdC8):
  rewrite the "each session spawns its own qwen --acp child"
  framing to match the actual Stage 1.5 multi-session-per-channel
  architecture (one child per workspace, sessions multiplex via
  `connection.newSession()`).

* fix(serve): close 4 review threads — close write-mode race + 2 missing tests + 1 doc

- writeTextFile mode-bits race (Blehd): the BkwQW fix preserved
  mode via `chmod` AFTER `fs.writeFile`, leaving a brief window
  where a `0600` secret-edit was readable at the directory's
  umask default (commonly `0644`). Now pass `mode` to writeFile
  directly so the file is CREATED with the preserved mode atomically
  via the `open(O_CREAT, mode)` syscall. The post-write `chmod`
  remains as belt-and-suspenders against a tight operator umask
  (POSIX `mode & ~umask` could drop bits we wanted preserved).
- httpAcpBridge.test.ts: new bridge-level test for the BkwQI
  `InvalidPermissionOptionError` path (Blehk). Forge a vote with
  an `optionId` not in the agent-offered set; assert the throw
  AND that the pending permission survives so a valid vote can
  still resolve it.
- server.test.ts: new route-level test for the BkwQI 400 mapping
  (Blehl). Fake bridge throws `InvalidPermissionOptionError`;
  assert response is 400 with `code: 'invalid_option_id'`,
  `requestId`, and `optionId` in the body.
- commands/serve --http-bridge help text (Bk59I): updated to
  reflect Stage 1.5 multi-session — "one `qwen --acp` child per
  workspace, with multiple sessions multiplexed via the agent's
  native `newSession()`" (was: "per-session child").

* fix(sdk): close 1 review thread — parseSseStream abort path catches body-read rejection (BlqF_)

Some fetch impls (undici on abort) reject the in-flight `reader.read()`
with an AbortError after `reader.cancel()` fires. Pre-fix that
rejection bubbled to the consumer's `for await`, contradicting the
"abort cancels cleanly" public contract — code that called
`controller.abort()` to wind a subscription down saw an unexpected
throw on the next iteration.

Wrap `reader.read()` in try/catch:
- if `signal?.aborted` is true → treat the rejection as clean
  completion (return from the generator)
- otherwise re-throw, so real upstream failures (network drop,
  unexpected close, malformed body) still reach the consumer

Two regression tests pin the guard's scope: signal-aborted
mid-stream returns cleanly with the frames received so far; a
non-abort `streamController.error(...)` still bubbles via `rejects.toThrow`.

* fix(serve): close 1 review thread — eventBus eviction detaches abort listener (BmJT1)

Pre-fix: `publish()`'s eviction path deleted the sub from `this.subs`
but never invoked `dispose()`, leaving the AbortSignal abort-listener
registered in `subscribe()` attached. Because the consumer is by
definition stalled (that's what caused the overflow), `next()` /
`return()` never fire to detach the listener through the iterator
path. Closures over the queue + sub stayed live until the AbortSignal
itself went out of scope.

Under attack (thousands of opened-then-stalled SSE clients), this
amplified into significant heap retention.

Fix: store `dispose` on `InternalSub` and invoke `sub.dispose()` from
the eviction path. The same closure used by the abort listener / the
iterator's `next()`/`return()` cleanup now runs through the
eviction path too — idempotent through `disposed` so a
post-eviction abort or iterator-return is still safe. Regression
test pins the post-eviction abort + publish path producing zero
side effects.

* fix(serve): close 1 review thread — restore double-Ctrl+C force-kill broken by multi-session refactor (BkUyD)

The Bd1y6 design promised a second SIGINT/SIGTERM during graceful
drain synchronously SIGKILLs every live agent child via
`bridge.killAllSync()` before `process.exit(1)` — the operator-
visible "kill it now" path for a wedged child ignoring SIGTERM.

The Stage 1.5 multi-session refactor (commit 6a170ef8) inadvertently
broke this. `shutdown()` snapshots `byWorkspaceChannel` then CLEARS
the map BEFORE awaiting the per-child SIGTERM-grace kills (up to
~10s each). If the operator double-taps mid-window, `killAllSync()`
snapshotted from the now-empty `byWorkspaceChannel.values()` and
silently no-op'd — the for-loop iterated nothing, `process.exit(1)`
fired, and any child still inside its SIGTERM grace window was left
orphaned with dangling pipes. Exactly the scenario the force-kill
path was added to handle.

Fix: introduce a separate `liveChannels: Set<ChannelInfo>` as the
source of truth for "channels with potentially-alive child
processes". Added in `getOrCreateChannel` alongside
`byWorkspaceChannel.set(...)`; removed only when `channel.exited`
fires (the OS-level "really dead" signal). `killAllSync()` now
iterates `liveChannels`, so a mid-shutdown second signal still
sees every still-alive child regardless of where the graceful
drain currently is. Other paths (`killSession` last-session reap,
`channel.exited` crash handler) automatically remove via the same
exit-handler hook.

Regression test:
- Builds two sessions on different workspaces
- Replaces each channel's `kill()` with a never-resolving Promise
  (simulating stuck SIGTERM grace)
- Calls `bridge.shutdown()` to enter mid-drain state
- Yields twice so shutdown's sync prefix runs (clears
  byWorkspaceChannel, starts the never-resolving awaits)
- Calls `bridge.killAllSync()` — pre-fix this saw an empty
  `byWorkspaceChannel` and the spy array would have been empty;
  post-fix both channels' `killSync` is invoked.

(tanzhenxin's other observation — channels-package duplicate ACP
bridge — is the same architectural concern as chiga0 finding 1+5,
already tracked under existing FIXME(stage-1.5) markers. No code
change in this commit for that.)
2026-05-13 14:47:47 +08:00
qqqys
fd53527aad
feat(cli): support batch deletion of sessions in /delete (#3733)
* feat(cli): support batch deletion of sessions in /delete

Closes #3706

Add multi-select mode to the session picker so /delete can remove
multiple sessions at once. Space toggles a checkbox on the cursor
item; Enter commits the checked set, falling back to single-select
when nothing is checked. The current active session is rendered
disabled with a "current — cannot delete" hint and is also stripped
defensively before the service call.

Core gains a `removeSessions(ids)` batch API that returns
`{ removed, notFound, errors }` so the CLI can surface partial
failures with a single toast.

Co-Authored-By: Qwen-Coder <noreply@alibabacloud.com>

* fix(cli): address /delete batch-delete review comments

- useSessionPicker: when checked items are all hidden by the branch
  filter, do not silently fall through to single-deleting the cursor row
  (data-loss path); stay in multi-select mode instead.
- SessionPicker footer: count only the checked-and-visible-and-committable
  rows so "N selected" matches what Enter would actually delete.
- useDeleteCommand: partial-failure toast switches to type=error and
  surfaces failing session ids (truncated, capped at 3 with overflow)
  plus the first underlying error message, instead of just an aggregate
  count masquerading as info.
- Docs: fix Tab→Space JSDoc / inline-comment drift across the picker
  surface (Space is the actual binding).

Co-Authored-By: Qwen-Coder <noreply@qwenlm.com>

* docs(cli): clarify disabledIds is multi-select-only on session picker

Reviewer flagged that disabledIds is silently inert in single-select
mode because both its visual dim and Space no-op gate on
enableMultiSelect. Spell that out on both prop JSDocs and point future
callers at filtering initialSessions for single-select use cases.

Co-Authored-By: Qwen-Coder <noreply@alibabacloud.com>

* fix(cli): address /delete batch-delete review feedback (round 2)

- useSessionPicker: throw when enableMultiSelect is on without
  onConfirmMulti (footer would otherwise read "N selected" while
  Enter silently fell through to single-select on the cursor row)
- useSessionPicker: single-select Enter fallback now respects
  disabledIdSet so a stray Enter on the dimmed active-session row
  no longer closes the dialog and bounces back with an error
- useDeleteCommand: stop swallowing the outer catch — log + surface
  the underlying error message so on-call has something to grep
- useDeleteCommand: full-failure branch now mirrors the partial-
  failure branch (failing ids + first error reason) instead of a
  generic "Failed to delete sessions."
- useDeleteCommand: emit a "Deleting N session(s)..." progress
  toast before awaiting removeSessions so slow filesystems don't
  leave the user staring at a closed dialog
- sessionService: JSDoc {@link removed}=false → {@link notFound}

Tests: regression for the disabled-row single-select fallback,
two invariant-throw tests for the picker, a pre-await progress
toast test, and align the StandaloneSessionPicker branch-filter
tests with main's Ctrl+B-only binding (plain 'B' silently entered
search mode after the merge, masking the assertion).

Co-Authored-By: Qwen-Coder <noreply@qwen.ai>

* test(cli): drop wait-based multi-select picker tests, cover at hook level

The Multi-select describe block in StandaloneSessionPicker.test.tsx
was 7 ink-rendering tests that all relied on `await wait(N)` to
sync with stdin events — the same flaky shape #3978 already
purged from the search suite. CI flaked on them once and they're
gone for good.

Critical invariants are re-asserted at hook level in
useSessionPicker.test.tsx (toggleChecked add/remove + no-op on
disabled ids), which exercise pure state without keypress sim.
Footer-rendering and keypress-driven flows are intentionally
left to manual verification rather than carried as wait-based
integration tests.

Co-Authored-By: Qwen-Coder <noreply@qwen.ai>

* test(cli): cover batch delete keyboard and failure paths

* fix(cli): address /delete batch-delete review feedback (round 3)

- useSessionPicker: Enter now commits *every* checked id (minus
  disabled), not just the filtered intersection. Filter is a
  navigation aid; gating the commit on it would silently drop
  checks the user explicitly made (check A-E, type a query
  matching only C-E, lose A and B). Order by sessionState.sessions
  so the receiver sees display order even for filter-hidden items.
- SessionPicker: footer count switches from visibleCheckedCount
  to committableCheckedCount (all checkedIds minus disabled), so
  it can no longer say "0 selected" while Enter is about to delete
  three hidden checks.
- useDeleteCommand: hoist sampleIds/overflow/firstError/reason
  above the three-way branch so partial- and full-failure paths
  can't drift out of sync on a future tweak.
- useDeleteCommand: in-flight ref guard wrapped in try/finally
  drops re-entrant /delete invocations (closeDeleteDialog runs
  synchronously, so without this the user can re-open /delete
  and queue an overlapping batch). Guard releases on early
  return too, otherwise a "only current selected" rejection
  would lock out the rest of the session.
- useDeleteCommand: surface "Current active session skipped."
  info toast when the picker forwarded the active session,
  otherwise the progress toast lies about the count.

Tests:
- useDeleteCommand: full-failure branch (removed=0), re-entrant
  drop, guard-released-on-early-return, stripped-current info toast
- useSessionPicker: hook-level keypress suite covering Space toggle,
  Space-disabled no-op, Enter→onConfirmMulti, Enter→onSelect
  fallback, Enter-disabled no-op, Enter commits hidden checks,
  Enter refuses when every check is disabled. MockStdin pattern
  cloned from useKeypress.test.ts, no ink rendering and no wait().

Co-Authored-By: Qwen-Coder <noreply@qwen.ai>

* chore(cli): trim delete-many comments

* fix(cli): guard delete actions during batch delete

* test(cli): cover batch delete guard release

* fix(cli): address session delete review feedback

* fix(cli): address batch delete review follow-ups

---------

Co-authored-by: Qwen-Coder <noreply@alibabacloud.com>
Co-authored-by: Qwen-Coder <noreply@qwenlm.com>
Co-authored-by: Qwen-Coder <noreply@qwen.ai>
Co-authored-by: qqqys <266654365+qqqys@users.noreply.github.com>
2026-05-13 14:34:39 +08:00
Shaojin Wen
d07daa3e69
fix(cli): auto-restore prompt and preserve queue on cancel (#4023)
* fix(cli): auto-restore prompt and preserve queue on cancel; align with Claude Code

When a user pressed ESC immediately after submitting a prompt (before the
model produced any meaningful output), qwen-code left the cancelled prompt
stranded in the transcript and in cross-session ↑-history. Cancelling
during tool execution also silently dropped any queued follow-up input.

Mirror Claude Code's auto-restore-on-interrupt:

  - Drain the queue back into the input buffer on EVERY cancel path,
    including tool-execution cancels (replaces the unconditional
    clearQueue() that motivated #3204 with a non-destructive pop).
  - When the user cancels with no draft text, no queued input, and no
    meaningful pending/committed assistant content, truncate the user
    item and trailing INFO from history and pull the prompt text back
    into the input box for editing.
  - Add Logger.removeLastUserMessage so the disk-backed cross-session
    ↑-history (getPreviousUserMessages) is also cleaned on cancel.

The "meaningful content" check matches Claude Code's
messagesAfterAreOnlySynthetic: gemini text and tool runs are meaningful;
info/error/warning/retry/notification/tool_use_summary/thoughts are
synthetic. truncateToItem uses functional setState so it batches with
the INFO addItem from cancelOngoingRequest in the same render pass —
no flicker.

Tests cover all five guard branches and the logger undo across normal,
no-op, one-shot, MODEL_SWITCH-interleaved, disk-rotation, and
uninitialized cases.

* fix(core): clear lastLoggedUserEntry on logMessage write failure

Without this, a transient writeFile error during a USER logMessage left
the undo tracker pointing at the previous successful entry. A subsequent
removeLastUserMessage (e.g., from auto-restore on cancel) would then
silently delete an unrelated earlier row from disk-backed history.

Add a regression test that mocks a writeFile rejection and asserts the
tracker is null and the prior entry survives.

Reported in PR review.

* fix(cli, core): share Logger across AppContainer/useGeminiStream and serialize writes

PR-review follow-up addressing two issues in the cancel-undo path.

1. Logger instance mismatch (Critical):
   `useGeminiStream` and `AppContainer` each called `useLogger()`, which
   instantiates a fresh `Logger` per call. `lastLoggedUserEntry` lives on
   the instance, so the undo invoked from `AppContainer` was always a
   no-op — the cancelled prompt still surfaced via cross-session
   `getPreviousUserMessages`. Move the `useLogger` ownership to
   `AppContainer` and pass the same instance into `useGeminiStream` via a
   new optional `logger` parameter.

2. Logger write ordering:
   Both `logMessage` and `removeLastUserMessage` do read → splice/append
   → writeFile without a lock. A fast cancel-then-resubmit could let
   `removeLast` clobber a just-appended new entry. Add a per-instance
   `serialize()` helper (a Promise-chained write queue) and route both
   mutating ops through it. Reset the queue on `close()`. New regression
   test fires removeLast and a fresh logMessage in parallel and asserts
   the resubmitted entry survives.

3. Stale React-state race in cancel guard (Suggestion):
   The auto-restore guard read `pendingGeminiHistoryItems` from React
   state, which can lag a stream chunk that just set
   `pendingHistoryItemRef.current`. Snapshot the pending item at the
   start of `cancelOngoingRequest` and pass it through the new
   `onCancelSubmit({ pendingItem })` info parameter. The guard combines
   it with the React-state items so any meaningful in-flight content
   blocks auto-restore even before re-render. New test covers the case
   where pendingHistoryItems is empty but info.pendingItem carries
   `gemini_content`.

All touched-area suites pass: 64 cli AppContainer, 9 historyUtils,
85 useGeminiStream, 46 core logger.

* fix(cli): unbreak build after import-merge regression and tighten cancel-handler test types

The pre-commit eslint --fix on the previous commit collapsed the two
consecutive `import { ... } from '@qwen-code/qwen-code-core'` blocks in
useGeminiStream.ts into a single statement, but kept the `import type`
modifier from the first block — silently turning every runtime symbol
(SendMessageType, MessageSenderType, GitService, ApprovalMode, …) into
type-only imports. tsc rejected with TS2206 + a wave of TS1361 errors
that only surfaced on CI.

Restore the two separate imports: pure-type symbols (Logger included)
in `import type { ... }`, runtime symbols in plain `import { ... }`.

Also: the AppContainer cancel-handler tests captured `onCancelSubmit`
as `() => void`, but the hook signature now takes an optional info
arg. Widen the captured-callback type so passing `{ pendingItem }`
typechecks (TS2554 on line 1053).

* fix(cli, core): tighten cancel-undo robustness from PR review batch 3

Four follow-ups from a /review pass on the auto-restore-on-cancel path.

* logger.ts — only invalidate `lastLoggedUserEntry` when the failed
  write was itself a USER attempt. A failed non-USER write (MODEL_SWITCH
  on a transient disk error, etc.) doesn't change which row was the
  most recent user prompt, so the prior undo target is still valid.
  Without this, MODEL_SWITCH disk hiccups silently disabled cancel-undo.

* useGeminiStream.ts — wrap `onCancelSubmit` in try/finally so a throw
  in AppContainer's cancel handler can't strand the stream in
  Responding (the UI would lock — Esc would no-op until process
  restart). `setIsResponding(false)` and `setShellInputFocused(false)`
  always run.

* useGeminiStream.ts — also document the three-way coupling between
  the INFO `addItem` here and AppContainer's auto-restore guard:
  the guard reads `historyRef.current` which doesn't yet contain
  this INFO (React batches), and the guard's correctness depends on
  the items added here staying synthetic.

* historyUtils.ts — make `isSyntheticHistoryItem` exhaustive over the
  35-member `HistoryItemWithoutId` union. Every case is explicit; the
  default branch carries a `_exhaustive: never` so adding a new
  HistoryItem variant without classifying it triggers a compile-time
  error rather than silently disabling auto-restore. Runtime fallback
  is "meaningful" (safe — bail rather than wipe content).

Tests: +1 logger case (non-USER failure preserves the USER tracker),
+1 useGeminiStream case (throwing handler still flushes Responding).

All touched suites pass: 47 logger, 9 historyUtils, 86 useGeminiStream,
64 AppContainer.

* docs(core): clarify Logger writeQueue scope (log-history only, not checkpoints)

Reword the comment above `writeQueue` and the `serialize()` JSDoc to
state explicitly that the queue only serializes log-history mutations
(`logMessage` / `removeLastUserMessage`). Checkpoint ops
(saveCheckpoint / deleteCheckpoint / loadCheckpoint) touch separate
files and intentionally don't share this queue, so the previous
"every disk-mutating op chains here" wording overstated the
guarantee.

* fix(cli): flush buffered stream events before snapshotting pendingItem on cancel

Stream content/thought events are throttled into a per-turn `bufferedEvents`
array; only when `flushBufferedStreamEvents` runs do they reach
`pendingHistoryItemRef.current`. Snapshotting BEFORE the flush meant cancels
that fired inside the throttle window (60ms) saw a null `pendingItem` even
when meaningful text was sitting in the buffer. AppContainer's auto-restore
guard then read null, decided "model produced nothing", and called
`truncateToItem` — which silently wiped the very content that the
subsequent `addItem(pendingHistoryItemRef.current)` had just committed.

Move the snapshot to AFTER the flush so it sees the same value as the
addItem call directly below it.

Regression test: yields a content event and cancels without advancing
fake timers, asserts `info.pendingItem` carries the buffered "partial
response" text rather than null.

* fix(core): apply Logger.removeLastUserMessage in-memory removal synchronously

AppContainer's `userMessages` effect calls `getPreviousUserMessages()`
on the same render that history truncation fires (it depends on
`historyManager.history`). The previous implementation only updated
`this.logs` after `await fs.writeFile(...)` settled, so the effect
read stale logs and ↑-history surfaced the cancelled prompt until
some unrelated future history change re-ran the effect.

Move the cache filter ahead of the serialize queue so consumers see
the removal immediately. The async serialize op continues to read,
splice, and write disk, then re-syncs `this.logs` from disk on
success or rotation.

Regression test fires removeLast without awaiting, then asserts the
very next `getPreviousUserMessages()` returns [] (no cancelled
prompt), and that the background promise still resolves to true.

* docs(core, cli): clarify removeLastUserMessage contract; observability for cancel-undo

* logger.ts — extend the JSDoc on `removeLastUserMessage` to spell
  out the two-phase semantics (sync optimistic in-memory removal +
  async serialized disk reconciliation), and explicitly document that
  the boolean return value reflects the *disk* outcome while the
  in-memory cache is updated unconditionally. Also explain why disk
  failures are NOT rolled back: rolling back would resurrect the
  cancelled prompt in ↑-history, which is worse UX than a temporary
  cache/disk divergence (which converges on next op or on
  `initialize()` of the next session).

* AppContainer.tsx — wrap the fire-and-forget
  `logger.removeLastUserMessage()` in `.catch(debugLogger.debug)`.
  The Logger's internal try/catches mean the Promise should never
  reject today, but a future code-path change shouldn't surface as
  an UnhandledPromiseRejection — and a debug-level log is the right
  observability hook for "cancel succeeded in UI but disk-undo
  failed silently".

* fix(core,cli): #4023 review wave — logger atomicity + observable undo failure

3 #4023 review threads addressed:

- core/logger.ts: `removeLastUserMessage` now ROLLS BACK the
  optimistic in-memory removal when the disk read or write fails.
  Previously the JSDoc/return contract was violated: the method
  returned `false` on failure but `this.logs` already showed the
  entry removed — callers (AppContainer's `userMessages` effect)
  saw the inconsistency and the cancelled prompt vanished from
  ↑-history despite the disk still carrying it. The rollback
  re-inserts the target at its original index when no concurrent
  mutation took its place, and restores `lastLoggedUserEntry` so
  a follow-up retry has a target. Regression test pinned: spy on
  fs.writeFile to throw, assert `removed === false` AND
  getPreviousUserMessages() still surfaces the entry.

- cli/AppContainer.tsx: `void logger?.removeLastUserMessage()` no
  longer silently swallows failures. Added `.catch` that routes
  through `debugLogger.debug` so a disk-write failure leaves a
  diagnostic trail; without it the cancelled prompt would
  resurrect next session via ↑-history with no observability into
  why.

- cli/historyUtils.ts: `gemini_thought` / `gemini_thought_content`
  classification reaffirmed as SYNTHETIC with explicit JSDoc on
  WHY (Claude Code parity + auto-restore is most valuable in the
  cancel-during-thinking case which is exactly the case where
  thoughts have appeared but no committed `gemini_content`).
  Future readers won't re-litigate the classification by accident.

Tests: 49/49 logger.test.ts pass; tsc + ESLint clean.

* docs(core): align removeLastUserMessage JSDoc with rollback-on-failure behaviour

The previous commit added a rollback path to `removeLastUserMessage`
(re-insert the optimistically-removed entry and restore
`lastLoggedUserEntry` when the disk read or write throws), but the
JSDoc still said the in-memory removal is "intentionally NOT rolled
back" — a copy-paste leftover from the earlier design that picked
optimistic-and-diverge. Rewrite the failure-handling paragraph and
`@returns` line to describe the rollback contract instead.

No code change.

* fix(cli, core): scope auto-restore to the cancelled turn + tighten typings/tests

Three follow-ups from PR #4023 review batch 5.

* cli — `CancelSubmitInfo` gains `lastTurnUserItem` carrying the user
  prompt text that THIS turn's `prepareQueryForGemini` added (or
  `null` for paths that don't push a user history item: Cron /
  Notification / slash `submit_prompt`). `cancelOngoingRequest`
  snapshots `lastTurnUserItemRef.current` and ships it through. The
  AppContainer auto-restore guard now requires
  `info.lastTurnUserItem` to be present AND match the candidate
  user item's text before truncating/rewinding — closing the case
  where an older user item happens to be followed by only-synthetic
  trailing content and the current cancelled turn never owned a
  user item to begin with.

  Two new regression tests pin both halves: cancel of a non-USER
  turn bails despite trailing-synthetic, and a deliberate text
  mismatch also bails.

* cli — `.catch((err)` widened to `(err: unknown)` on the
  fire-and-forget `logger.removeLastUserMessage()` call. Belt-and-
  braces: `Promise.catch`'s lib typing is `(reason: any) =>` so
  this is not currently TS7006, but tightening keeps the codebase
  ready for `@typescript-eslint/no-implicit-any-catch`-style rules
  and matches the rest of the codebase's strict-error patterns.

* core — Added a `removeLastUserMessage` regression test pinning
  the `_readLogFile` failure branch (mocks `fs.readFile` to throw
  Permission denied). The symmetric `writeFile` failure case was
  already covered; this closes the gap on the read leg.

Tests: AppContainer 67/67 (+2), useGeminiStream 87/87, historyUtils 11/11,
logger 50/50 (+1). Type-check and lint clean.

* chore(cli): add debug observability for each auto-restore-on-cancel bail-out

The cancel handler in AppContainer has seven independent guards that
silently `return` when auto-restore is unsafe (buffer non-empty, queue
non-empty, pending meaningful content, no last-turn user item, no user
in history, trailing items not all synthetic, candidate-text mismatch).
Until now, users reporting "I pressed ESC but my prompt didn't come
back" had no way to know which guard tripped without a debugger.

Log a specific `debugLogger.debug(...)` line at each bail-out and one
on the success path. Debug level keeps production output silent;
re-enableable by running with `DEBUG=1` (per existing convention in
this file). No control-flow change.

* docs(core): scope removeLastUserMessage's "false ⇒ observable in-memory" guarantee

The previous JSDoc implied the guarantee held for every `false` return,
but it only really holds on the disk read/write THROW path (where we
roll back the optimistic in-memory removal). Two other `false`-paths
behave differently:

  - Initial guards (logger uninitialized / no tracked entry): nothing
    was ever removed, nothing to restore — entry stays in whatever
    state it was already in.
  - Disk read succeeds but the tracked row is missing on disk (e.g. a
    concurrent rotation/clear): we adopt disk state into `this.logs`,
    so both sides agree the entry is gone — `false` is returned but
    the entry is NOT observable in-memory either.

Rewrite the failure-handling paragraph and `@returns` line to spell
out both branches explicitly. No code change.

* fix(core): shift lastLoggedUserEntry on USER logMessage duplicate-skip

When `_updateLogFile` detects another instance already wrote an
identical (sessionId, messageId, timestamp, message) row and returns
null, the previous logMessage code path left `lastLoggedUserEntry`
pointing at the prior USER entry. A subsequent cancel/auto-restore
would then call `removeLastUserMessage()` and silently delete the
wrong row — typically an older prompt that the user did not intend
to undo.

The fix: when the duplicate skip happens on a USER attempt, advance
`lastLoggedUserEntry` to the entry object we just tried to write.
`_updateLogFile` mutates that object's `messageId` in-place to align
with the disk row before the duplicate check, so the 5-tuple matches
the row that's actually on disk and an undo correctly targets it.

The natural race (`max+1` colliding with an existing `messageId`)
is not reachable by sequential awaits — the snapshot used for the
duplicate check is always max+1-strict. The regression test drives
the contract directly by mocking `_updateLogFile` to resolve to
null and asserting `lastLoggedUserEntry` shifts to the new entry.

* fix(cli, core): strip orphan user entry from chat history on auto-restore

The auto-restore branch was cleaning up two of the three places a
cancelled prompt lives — the UI transcript via `truncateToItem` and
the disk-backed ↑-history via `Logger.removeLastUserMessage`. The
third — the in-memory chat history on `GeminiChat` — was left
untouched. `sendMessageStream` appends the user content to
`chat.history` BEFORE the stream generator runs and the abort path
doesn't pop it. After a successful auto-restore the next request's
wire payload still carried the cancelled prompt as a leading user
turn alongside the new prompt, so the model saw context the user
believed had been undone (and in some shapes the API would reject
two consecutive user turns).

Mirror the existing strip the Retry submit path uses
(`GeminiClient.sendMessageStream` at the `Retry` branch): make
`GeminiClient.stripOrphanedUserEntriesFromHistory` public and call
it from the auto-restore success path, sitting next to the UI
truncate and the disk-log undo. The method already pops trailing
user entries and clears the `FileReadCache` (which can otherwise
hold dangling `read_file` results from the stripped turn).

End-to-end reproduction from the PR review:
1. Submit `what time is it?` → ESC during pre-token delay →
   auto-restore (UI rewound, buffer pre-filled).
2. Edit buffer to `what year is it?` → submit.
3. Pre-fix: outbound `messages` carried both prompts as consecutive
   user turns. Post-fix: only the new prompt.

Test: extend the auto-restore-success AppContainer test with a
mock `stripOrphanedUserEntriesFromHistory` spy and assert it fires.
The non-restore branches don't install the spy (it's optionally
chained at the call site).

* fix(core, cli): tighten Logger.serialize signature + pin lastTurnUserItem and dup-skip identity contracts

Three follow-ups from PR review batch:

* core/logger.ts — `serialize()` was `this.writeQueue.then(op, op)`.
  The second callback was dead code: `writeQueue` is seeded with
  `Promise.resolve()` and reassigned through `.catch(() => undefined)`,
  so the queue tail can never reject. Worse, `then(op, op)` reads as
  "retry op on rejection" — wrong intent. Switch to `.then(() => op())`
  with a comment spelling out the no-reject invariant.

* cli/useGeminiStream.test.tsx — add ownership-contract tests at the
  PRODUCER side of `info.lastTurnUserItem`. Until now only the
  AppContainer tests pinned the contract, and they fabricate the
  value, so a regression that drops `lastTurnUserItemRef.current = {
  text: trimmedQuery }` in `prepareQueryForGemini` would slip
  through. New tests:
    - normal `UserQuery` submit → cancel → assert
      `info.lastTurnUserItem === { text: 'what time is it?' }`.
    - `SendMessageType.Notification` submit → cancel → assert
      `info.lastTurnUserItem === null` (path doesn't push a user
      history item, the ref reset at the top of
      prepareQueryForGemini must keep it null).

* core/logger.test.ts — strengthen the duplicate-skip regression.
  The previous test only checked the tracker advanced text; the
  important identity contract is that the recalculated 5-tuple
  matches the disk row, so a subsequent `removeLastUserMessage()`
  removes the duplicate-skipped row rather than the older USER.
  New test seeds disk with [first, second], stubs `_updateLogFile`
  for the second call to mimic the duplicate-skip branch (mutate
  newEntryObject's messageId+timestamp to align with the disk row,
  return null), then asserts removeLastUserMessage() leaves
  ['first'] on disk and removes 'second'.

* fix(cli, core): close four cancel-auto-restore correctness gaps from PR review

Four critical findings from gpt-5.5 /review pass:

1. **Retry skipped the lastTurnUserItem reset** (useGeminiStream.ts)
   `Retry` bypasses `prepareQueryForGemini`, which is where the
   `lastTurnUserItemRef.current = null` reset lived. A retry that
   followed a normal `UserQuery` carried the stale ownership snapshot
   into `onCancelSubmit`, and cancelling the retry before any
   meaningful output let `AppContainer` auto-restore truncate the
   original failed prompt. Move the reset (and the new content-seen
   reset, see #4) to the top of `submitQuery`, gated only on
   "this is a top-level submit" — covers Retry, Cron, Notification,
   and ordinary UserQuery alike.

2. **Text-only ownership matched dedup'd duplicates** (AppContainer.tsx,
   useGeminiStream.ts) `useHistoryManager.addItem` skips inserting a
   consecutive-duplicate user message while still returning a freshly
   generated id. The text-only ownership check would match the OLDER
   identical-text USER row, so a re-submitted same prompt + cancel
   would wrongly truncate the prior turn. Carry id+text in
   `CancelSubmitInfo.lastTurnUserItem` (using `addItem`'s return
   value) and require both id AND text to match before truncating.

3. **stripOrphan left IDE context state advanced** (client.ts) Other
   history-mutating paths (`setHistory`, `truncateHistory`) set
   `forceFullIdeContext = true` after mutating; the orphan-strip
   didn't, so a subsequent request could send a diff against a
   removed baseline. Gate cache-clear + IDE-context invalidation on
   an actual before/after length drop, so no-op strips don't churn
   state.

4. **Flush-then-thought race let auto-restore wipe committed content**
   (useGeminiStream.ts, AppContainer.tsx) `cancelOngoingRequest`'s
   pre-cancel flush can `addItem` a meaningful `gemini_content` (via
   handleContentEvent's split path) and then a later thought event
   overwrites `pendingHistoryItem` with a synthetic value. The
   AppContainer guard's React history snapshot is stale, so the
   trailing-only-synthetic check passes and the just-committed text
   gets truncated. Track a synchronous `turnSawContentEventRef` set
   in handleContentEvent, ship it through `CancelSubmitInfo`, and
   make the guard bail when set.

Tests:
- core/client.test.ts: stripOrphan only forces full IDE context on
  actual removal; existing retry tests updated to mock
  `getHistoryLength`.
- cli/useGeminiStream.test.tsx: ownership uses { id, text }, Retry
  reset works after a prior UserQuery cancel,
  turnProducedMeaningfulContent flips true when content lands.
- cli/AppContainer.test.tsx: guard bails on `turnProducedMeaningfulContent: true`,
  guard bails on id mismatch (catches addItem dedup case).

cli 162/162 + core client 99/99 + core logger 51/51.

* fix(cli): repaint static transcript after auto-restore truncate

Reported by @tanzhenxin: auto-restore truncated React `history` state
but the cancelled `> prompt` and `Request cancelled.` lines stayed
printed in the terminal — Ink's `<Static>` region is append-only, so
shrinking the underlying array doesn't unprint already-flushed lines.
On the PR's golden path (type prompt → Enter → ESC) the user sees the
prompt twice: once in scrollback, once pre-filled in the input buffer.
Confirmed at multiple Enter-to-ESC delays, so it's not a timing fluke.

Call `refreshStatic()` immediately after `truncateToItem(...)` in the
auto-restore success path. `refreshStatic` writes the ANSI
clear-terminal escape AND bumps the static remount key — the exact
recipe `/clear` (`handleClearScreen`) already uses for the same
reason. The targeted-repaint helper used for terminal resizes is
intentionally NOT used here: it preserves scrollback, which would
leave the cancelled prompt visible above the new viewport.

Test: extend the existing auto-restore happy-path AppContainer test
to assert `mockStdout.write` was called with `ansiEscapes.clearTerminal`.
The other auto-restore-bail tests don't install the assertion so they
naturally verify the negative case (no clear when guard rejects).
2026-05-13 12:08:16 +08:00
Edenman
533daac316
feat(cli): wrap markdown links in OSC 8 so wrapped URLs stay clickable (#4037)
* feat(cli): wrap markdown links in OSC 8 so wrapped URLs stay clickable

Long URLs the model emits inside `[label](url)` or as bare `https://...`
get line-wrapped by the terminal, which prevents most emulators from
detecting them as a single clickable region. OSC 8 hyperlinks decouple
the link target from the visible label so the entire label remains one
clickable target regardless of where it wraps.

- Extract the existing OSC 8 helpers from AuthenticateStep into a shared
  packages/cli/src/ui/utils/osc8.ts util, plus a dependency-free
  capability detector that honors NO_COLOR / FORCE_COLOR=0 / CI /
  non-TTY stdout, with FORCE_HYPERLINK=1 and QWEN_DISABLE_HYPERLINKS=1
  overrides for explicit opt-in / opt-out.
- Wire InlineMarkdownRenderer to wrap markdown link labels and bare
  autolinks in an OSC 8 envelope when supported. Wrapping happens after
  the inline link token has been fully matched, so streamed partial
  chunks cannot split an envelope across flushes.
- Fall back to the legacy `label (url)` rendering byte-for-byte when
  the host terminal does not advertise OSC 8 support.

Closes #3954

* fix(cli): harden OSC 8 markdown wrapping after multi-round audit

Address findings from a multi-round design and code audit of the OSC 8
hyperlink feature:

Design fixes:
- Keep the visible `(url)` suffix in supported terminals too — preserves
  copy-paste UX and lets users preview suspicious URLs before clicking.
  OSC 8 is now purely additive (byte-identical unsupported output, plus
  envelope on supported terminals).
- Restrict OSC 8 wrapping to http/https/mailto/ftp/sftp/ssh schemes;
  javascript:/data:/file:/vbscript: fall through unwrapped so the user
  can read the target. Prompt-injection defense for LLM output.
- Reject URLs with whitespace — every terminal treats whitespace in an
  OSC 8 target as truncation/rejection, which would turn the whole
  region into an un-clickable trap.
- Block OSC 8 inside tmux/screen by default; require `FORCE_HYPERLINK=1`
  opt-in. The multiplexer hides the host terminal's capabilities, so
  emitting passthrough escapes on a host without OSC 8 prints garbage.
- Version-gate `supportsHyperlinks()` (iTerm ≥3.1, vscode ≥1.72, WezTerm
  ≥20200620, VTE ≥0.50 with 0.50.0 segfault carve-out), block CI /
  TEAMCITY / win32 (modulo WT_SESSION/Kitty/Ghostty/DOMTERM), mirror
  `supports-hyperlinks` semantics.
- Extend the link regex to allow one level of balanced parens in the
  URL group so `[wiki](https://en.wikipedia.org/wiki/Foo_(bar))` isn't
  truncated at the inner `)`.
- Trim trailing sentence punctuation off the OSC 8 *target* for bare
  URLs (`.`, `,`, `;`, `:`, `!`, `?`, `'`, `"`, `` ` ``) and unbalanced
  trailing `)]}` so the clickable URL resolves to a real page.
- Catch VTE 0.50.0 reported in packed form (`'5000'`) — the original
  string compare missed it and let the segfault through.

Code fixes:
- Consolidate `wrapForMultiplexer` with the pre-existing
  `packages/cli/src/utils/osc.ts` — no more duplicate helpers.
- Drop the `supportsHyperlinks` memoization cache so runtime env changes
  (NO_COLOR / theme toggles) take effect immediately.
- Extract `MD_LINK_PATTERN`, `MD_LINK_CAPTURE`, `shouldWrapMarkdownLink`,
  and `HYPERLINK_ENV_KEYS` into `osc8.ts` so the React and ANSI
  renderers stay in lockstep.
- Hoist `supportsHyperlinks()` once per render (both renderers).
- Apply the same OSC 8 treatment to `TableRenderer` so markdown links
  inside tables are clickable too.
- Rewrite `trimTrailingUrlPunctuation` to O(n) by pre-counting opens.

Tests cover: balanced parens in URL, dangerous-scheme rejection,
whitespace-URL rejection, trailing-punctuation trimming, tmux blocking,
version gating (iTerm/WezTerm/vscode/VTE incl. packed form), platform
fallbacks, mid-stream chunk balance, byte-identical legacy fallback.

* feat(cli): detect Alacritty / Konsole / Warp / JetBrains / mintty for OSC 8

Expand supportsHyperlinks() to recognize five more capable terminals
that the original detector silently treated as unsupported:

- Alacritty ≥ 0.11 via TERM=alacritty (the issue explicitly calls this
  one out)
- Konsole ≥ 21.04 via KONSOLE_VERSION
- WarpTerminal via TERM_PROGRAM=WarpTerminal
- JetBrains JediTerm (IDE integrated terminals) via TERMINAL_EMULATOR
- mintty (Git Bash on Windows, etc.) via TERM_PROGRAM=mintty

Hyper stays auto-detection-off (FORCE_HYPERLINK=1 override) because
plugin chains have a long history of breaking escape passthrough.
Apple_Terminal stays off because it has no OSC 8 support at all.

KONSOLE_VERSION and TERMINAL_EMULATOR added to HYPERLINK_ENV_KEYS so
the test isolation list stays in sync.

* chore(cli): polish OSC 8 detector after another audit round

Address findings from the final multi-round audit pass:

- Document `FORCE_HYPERLINK` and `QWEN_DISABLE_HYPERLINKS` in the
  user-facing env-vars table at docs/users/configuration/settings.md so
  the new opt-in / opt-out surface is discoverable without grepping
  source.

- Detect Alacritty even when the alacritty terminfo entry isn't
  installed (a common Linux distro scenario where Alacritty falls back
  to TERM=xterm-256color). Fall back to ALACRITTY_LOG /
  ALACRITTY_WINDOW_ID / ALACRITTY_SOCKET — Alacritty sets at least one
  of these unconditionally since 0.12.

- Trim a trailing `>` off the OSC 8 target so CommonMark autolinks
  (`<https://example.com>`) produce a clickable target that actually
  resolves instead of 404-ing because of the captured delimiter.

- Add OSC 8 / hyperlink env isolation to TableRenderer.test.tsx so a
  developer running the suite from iTerm2 / WezTerm / Kitty can't leak
  escape bytes into table output.

- Symmetric `isTTY` reset in osc8.test.ts `beforeEach` so the early
  describes (sanitizer, scheme, trim) don't inherit residual TTY state
  from a prior test.

- Document the deliberate security property of keeping the visible
  `(url)` suffix in OSC 8 mode (user always reads the destination
  before clicking) in the SAFE_OSC8_SCHEMES comment.

- Collapse the `wrapForMultiplexer` import + re-export to a single
  `export { wrapForMultiplexer }` after the local import.

- Add ALACRITTY_* keys to HYPERLINK_ENV_KEYS so test isolation lists
  stay complete.

Tests cover the new autolink `>` trim, the Alacritty env-var
fallbacks, and NBSP / Unicode-whitespace URL rejection.

* fix(cli): tighten OSC 8 gating per PR review

Two fixes from chiga0's review on PR #4037:

1. Move the non-TTY check above `FORCE_HYPERLINK` so a user with
   `FORCE_HYPERLINK=1` in their shell profile still gets a clean pipe
   when they run `qwen | cat` or `qwen > out.txt`. The "non-TTY stdout
   must suppress escapes" acceptance criterion now holds even under
   forced enable.

2. Version-gate the Konsole detection at `>= 21.04`. KONSOLE_VERSION
   is set by every Konsole release including ones that pre-date OSC 8
   support, so the existence check alone false-positives on Konsole
   20.x. Parse the packed integer (21.04 → 210400) and let older
   releases fall through to the legacy fallback.

Updates the docs row for FORCE_HYPERLINK to make the non-TTY caveat
explicit. Splits the prior "FORCE_HYPERLINK + isTTY=false" test into
two — one verifying force works on a TTY, one asserting it never
escapes the non-TTY guard. Adds a Konsole < 21.04 regression test.

* fix(cli): stop auto-detecting Warp Terminal as OSC 8 capable

Warp's current rendering engine doesn't honor OSC 8 envelopes — the
escape sequence is printed as visible garbage rather than recognized
as a clickable hyperlink. Falling through to the legacy `label (url)`
rendering avoids the regression on Warp.

Users on a Warp build that ever ships OSC 8 support can opt in with
`FORCE_HYPERLINK=1`; the case will be reinstated in the switch when
Warp lands real support upstream.

Test flipped from "enabled" to "not auto-detected, FORCE_HYPERLINK
opts in" to lock the new behavior.

* feat(cli): drop visible (url) suffix when OSC 8 wrapping is active

In the originally shipped renderer, `[label](url)` was rendered as
`label (url)` even when OSC 8 wrapped the region. With long URLs that's
clutter for no benefit — capable terminals already expose the target
via hover / status bar / right-click "copy link" without needing the
URL in the visible stream.

When `shouldWrapMarkdownLink(url, canHyperlink)` returns true, the
React renderer and the ANSI table renderer now emit only the markdown
label (link-colored), with the OSC 8 envelope pointing at the full URL.
Empty labels (`[](url)`) fall back to using the URL as the visible
label so the link stays discoverable.

When the predicate returns false (unsupported terminal, unsafe scheme,
whitespace URL) the legacy `label (url)` rendering is preserved
byte-for-byte — the scheme allowlist still guarantees the user sees
the destination before any click on a `javascript:` / `data:` / etc.
link.

Tests updated to assert label-only visible bytes in wrap mode and an
empty-label fallback case added. Comment block in `osc8.ts` updated to
reflect the new visibility contract.

* fix(cli): strip C1 controls in OSC 8 sanitizer

sanitizeForOsc() only removed C0 + DEL, so 8-bit ST (\x9c) and 8-bit
OSC (\x9d) bytes could still survive inside an OSC 8 target. On
terminals that honor C1 controls, those bytes act as the same sequence
boundaries as their two-byte ESC counterparts, which defeats the
escape-injection hardening this helper is meant to provide. Extend
the regex to also strip \x80-\x9f and cover the case with a test.

* fix(cli): harden OSC 8 link sanitization and tighten gating

Three independent issues found while auditing the markdown OSC 8 path:

1. sanitizeForOsc() previously left Unicode bidi controls (U+200E/F,
   U+202A-E, U+2066-9) and line/paragraph separators (U+2028/9) intact.
   A model-emitted RLO in a link label visually reverses trailing bytes,
   spoofing the host the user thinks they're clicking — exactly the
   click-deception attack the scheme allowlist is meant to block, just
   moved from the URL into the visible label. Extend the regex to strip
   those bytes too.

2. The visible label rendered inside the OSC 8 envelope went straight
   to the terminal without sanitization, so even with (1) the spoof
   would still land. Wire sanitizeForOsc() over the linkText in both
   InlineMarkdownRenderer and TableRenderer's OSC 8 branches. The
   legacy `label (url)` branches stay untouched so today's
   unsupported-terminal output remains byte-identical.

3. AuthenticateStep emitted osc8Hyperlink(authUrl) unconditionally,
   leaking escape bytes into pipes / non-OSC-8 terminals — inconsistent
   with the suppression contract documented for the rest of the PR.
   Gate it on supportsHyperlinks() so it falls back to the bare URL.

Test coverage added:
- sanitizeForOsc bidi/line-separator strip
- bidi spoof in the rendered markdown label
- byte-equality fallback on unsupported terminals
- TableRenderer markdown link → OSC 8 (positive, fallback, unsafe
  scheme, bidi-spoof) — the table renderer had zero OSC 8 coverage
  before this.

* fix(cli): keep `(url)` visible when an OSC 8 label looks like a different URL

Adversarial round-2 audit identified a label-as-URL deception attack:
when the OSC 8 branch elides the `(url)` suffix and shows only the
clickable label, a model-emitted `[https://google.com](https://attacker.com)`
renders a "google.com" link that resolves to attacker.com. Pre-OSC-8
rendering kept `(url)` visible so the user could see the real target;
hiding it makes the click-deception case land.

Mitigation: a new `labelMayDeceive(label, url)` predicate. When the
label contains a URL-shaped substring AND it doesn't equal the actual
target, both renderers keep the legacy `(url)` suffix while still
emitting the OSC 8 envelope — the link stays clickable, the user
still sees where the click goes.

Heuristic is permissive on purpose: false positives are harmless
(redundant `(url)` on niche labels), false negatives let a real spoof
through.

Tests: positive (mismatched URL labels), negative (label == url, plain
text labels), in both InlineMarkdownRenderer and TableRenderer.

* fix(cli): catch bare-host label deception in OSC 8 wrapping

Round-3 audit caught a false-negative in labelMayDeceive: the
`://` substring check only flagged labels with a fully-qualified URL
shape. The most natural markdown spoof — `[google.com](https://evil.com)`
— uses a bare host as the label and slipped past, so the OSC 8 branch
elided the `(url)` suffix and rendered a clickable "google.com" that
resolved to evil.com.

Add a third detection pattern: extract host-like tokens from the
label (`name.tld` with an alphabetic 2+ char TLD), and flag the link
when any of them doesn't equal the URL's parsed hostname. Plain
labels like `docs` / `click here` don't match the regex, version
strings like `1.2.3` are skipped (last segment is numeric), and
`[google.com](https://google.com)` is honest rendering — none of these
get flagged.

ASCII-only matching means an IDN-homograph attack on a bare-host label
(Cyrillic `о`) still escapes this layer; the fully-qualified form of
the same attack is still caught by the existing `://` rule, which is
the only form an LLM is realistically likely to emit.

Tests cover: bare-host mismatch, punycode IDN target, same-host /
different-path, label==target negative, plain-text labels, version
strings.

* fix(cli): handle mailto: target in labelMayDeceive

Round-4 audit caught a false positive: `new URL('mailto:x@y').hostname`
is empty, so targetHostname() returned undefined and the defensive
`return true` branch fired any time a mailto label contained an
email-shaped string. A perfectly honest
`[support@example.com](mailto:support@example.com)` was being flagged
as deceptive and getting a redundant `(url)` suffix on capable
terminals.

Special-case mailto: by pulling the domain from after the `@` in the
URL pathname, matching what the user would compare against.
A mismatched mailto (e.g. `[support@example.com](mailto:abuse@evil.com)`)
still flags correctly.

Also drop a dead `HOST_LIKE_RE.lastIndex = 0` reset — `.match()` doesn't
consult lastIndex, so the line was a no-op.

* fix(cli): catch IPv4-literal label deception in OSC 8 wrapping

Round-5 audit found another bare-host bypass: a label like
`[1.1.1.1](https://attacker.com)` (or any other dotted-quad such as
`[192.168.1.1]` / `[8.8.8.8]`) escaped labelMayDeceive because the
existing host regex anchors on a 2+ alphabetic TLD. The user would
see a clickable "1.1.1.1" that resolves to attacker.com with no
visible target.

Add a separate dotted-quad pattern and combine it with the host-token
list before comparing against the URL's hostname. False-positive
surface is small (over-permissive on octet ranges is harmless — worst
case is an extra `(url)` suffix on a label like `999.999.999.999`).

Tests cover mismatched IPv4, IPv4 spelled inside surrounding text,
and label-equals-target IPv4 (which must NOT flag).

* fix(cli): sanitize URL when rendered as visible text in OSC 8 path

Two PR review findings:

1. config-utils.ts dropped the `resolvePath(...)` call (and its import)
   that origin/main introduced in #4045 for tilde / relative `cwd` paths
   in channel configs. The auto-merge silently reverted it the same way
   it did `packages/channels/base/src/index.ts`. Restore main's content.

2. Anti-spoof sanitization was only applied to `linkText`, but the
   OSC 8 render path emits the URL as visible text in two places that
   bypassed it:
   - empty-label fallback `safeLabel || url` — `[](https://x/a‮evil)`
     would print the URL with RLO intact even though the OSC target was
     sanitized.
   - deceptive-label `(url)` suffix.

   Compute `safeUrl = sanitizeForOsc(url)` once in the OSC 8 branch and
   use it for both visible-URL renderings. The OSC target inside
   `osc8Open` keeps the raw URL (sanitization happens inside the helper
   anyway). Same fix mirrored in `TableRenderer.tsx`. The legacy
   `label (url)` branch on unsupported terminals stays untouched so its
   byte-identical-fallback contract holds.

Test added: `[](https://example.com/a‮evil)` round-trips through the
renderer with the RLO stripped from both the OSC target and the visible
URL fallback.
2026-05-13 11:37:27 +08:00
ChiGao
51ee87539c
revert(deps): downgrade ink 7 → 6 to fix Static-remount TUI regression from #3860 (#4083)
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* revert(deps): downgrade ink 7.0.2 → 6.x to fix Static-remount regression from #3860

PR #3860 upgraded ink 6.2.3 → 7.0.2 with the claim of "no business code
changes." In production this turns out to break the TUI:

- After `/clear`, the next user message and AI response do not render
  to the static history area — only the dynamic spinner/input area is
  visible (#3860 + chore/upgrade-ink-7 branch reproduce this).
- After Ctrl+O (TOGGLE_COMPACT_MODE), the screen is cleared and stays
  blank.
- Any `refreshStatic()` call path (auth refresh, model change, render-
  mode switch, /clear, Ctrl+O) puts the UI into the same "muted" state.

Root cause is an ink 7 regression: when `<Static>` is remounted by
changing its `key` prop, the new instance's items are never written to
stdout. A 30-line minimal repro (pure ink + Static + key++) confirms
this independently of qwen-code.

Closest upstream issue: vadimdemedes/ink#773
(useLayoutEffect-driven child stripping in <Static>). PR #905
("Fix dangling staticNode reference") merged into ink 7 fixed the
unmount-OOM path but not this remount path. No upstream issue yet
matches the "remount loses content" case — we should file one and
ship a re-upgrade once it is resolved.

Scope of this revert (intentional partial revert of #3860):

- ink ^7.0.2 → ^6.2.3 (cli + root hoist)
- react / react-dom 19.2.4 pin → ^19.1.0 (cli direct, root overrides
  removed)
- wrap-ansi ^10.0.0 → 9.0.2 (cli direct, root override restored)
- react-devtools-core kept at ^6.1.5 (still ink-6 compatible — ink
  6.8.0's peerOptional requires >=6.1.2; downgrading to 4.x would
  re-introduce a conflict)
- @vitest/eslint-plugin pin "1.3.4" → "^1.3.4"
- "@types/node" override removed (was only needed for ink 7's Node 22
  type drift)

What this revert keeps:

- Node engines >=22 across root / cli / core / sdk / web-templates and
  the matching Dockerfile / .nvmrc / CI matrix work. PR #1876 followed
  up by adding Node 24 support to the matrix, and rolling those back
  would conflict with that work. The visible bug is the ink runtime
  regression, not the engine bump.
- doctorChecks.ts MIN_NODE_MAJOR = 22 (matches engines).
- The test gating that #3860 added for ink-7 input throttle (AuthDialog
  / AskUserQuestionDialog / InputPrompt). With ink 6 these tests would
  pass un-gated, but leaving the gate in place is harmless and a
  follow-up can un-gate them. Keeping this revert minimal.

Verification (local, ink 6.8.0 single instance):

- npm ls ink → single ink@6.8.0
- npm ls react → single react@19.2.4 (kept by vscode-ide-companion
  workspace pin; ink 6 is fine on 19.2)
- npm run typecheck --workspace=packages/cli → clean
- AppContainer.test.tsx 61/61 pass
- MainContent.test.tsx 6/6 pass
- clearCommand.test.ts 13/13 pass

Re-upgrade path: once ink ships a fix for the Static-remount
regression, redo this upgrade behind the feat/virtual-viewport-on-ink7
branch where the `<Static>` + clearTerminal combo is replaced by an
overflowY=hidden self-managed viewport.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* ci(fix): keep wrap-ansi 10 + skip 1 ink-7-specific TableRenderer test

The initial revert downgraded wrap-ansi to 9.0.2 (the pre-PR-#3860
state). After rebasing onto current main, PR #4050 (preserve table
ANSI color across wrapped lines) brought in a new test
("does not preserve foreground after an explicit foreground reset")
whose wrap point depends on ink 7's <Text> wrapping behavior.

Two-part fix:

1. Restore wrap-ansi to 10 (cli direct dep). The wrap-ansi version is
   independent of the ink regression we're reverting — wrap-ansi 10
   has no peer-dep tie to ink 7 — and #4050's TableRenderer code on
   main already assumes wrap-ansi 10. Keeping the wrap-ansi bump
   removes the root override for wrap-ansi (was forcing all transitives
   to 9.0.2) so cli's TableRenderer gets the wrap-ansi 10 it expects,
   while ink 6's transitive wrap-ansi naturally resolves to 9 (its own
   declared range) — no conflict.

2. Skip the one new test that asserts a specific wrap position. The
   other assertions in that test (foreground cleared, equal visible
   widths) still pass on ink 6 — only `expectWrappedContinuation` is
   ink-7-specific. The sibling test 'does not preserve foreground
   after an explicit reset' (using \\u001b[0m instead of \\u001b[39m)
   still passes unmodified on ink 6, so the ANSI-handling logic itself
   is verified end-to-end. The TODO marker references the re-upgrade
   path.

Local verification:

- TableRenderer.test.tsx: 54/54 pass + 1 skipped
- AppContainer.test.tsx: 61/61 pass
- MainContent.test.tsx: 6/6 pass
- clearCommand.test.ts: 13/13 pass
- npm run typecheck --workspace=packages/cli: clean
- npm ls ink → single ink@6.8.0
- npm ls wrap-ansi → cli direct: 10.0.0; ink 6 transitive: 9.0.2
  (no conflict, no override)

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

---------

Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-12 17:11:17 +08:00
ChiGao
dc7a90c4ac
fix(cli): preserve table ANSI color across wrapped lines (#4050)
Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
2026-05-12 16:09:39 +08:00
qqqys
e59c7b8b68
fix(channels): expand tilde in channel cwd config (#4045)
Channel `cwd` from settings.json was passed verbatim to
`child_process.spawn()` in AcpBridge, so `"cwd": "~/xomo"` made the
kernel fail to chdir and surfaced as a misleading
`spawn /usr/bin/node ENOENT`.

Expand `~` / `~\` and resolve relative paths to absolute in
`parseChannelConfig` so all downstream consumers (AcpBridge spawn,
SessionRouter, WeixinAdapter, ChannelBase) only ever see absolute
paths. Reuses the existing `resolvePath` helper from
`@qwen-code/channel-base` (previously used internally by
`getGlobalQwenDir`).

Fixes #3998

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-12 16:09:35 +08:00
ChiGao
3d664336df
fix(cli): improve rendering on narrow terminals (#3968)
* fix(cli): improve rendering on narrow terminals

- TableRenderer: switch to vertical format when contentWidth < 60 cols,
  preventing wide horizontal tables from overflowing into scrollback on
  narrow terminals.
- Composer: suppress bottom loading indicator when terminal width ≤ 30
  cols during streaming, avoiding unnecessary redraws on ultra-narrow
  terminals.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* test(cli): cover narrow-terminal rendering branches + tighten thresholds

Address review feedback on #3968:

- Composer: drop redundant `isStreaming &&` guard from
  `suppressBottomLoadingIndicator`; the trailing
  `=== StreamingState.Responding` already implies streaming, and the
  redundancy risked future drift if `isStreaming` were extended.
- Composer.test: add four cases pinning the suppression contract —
  Responding @ 25/30 cols hides, @ 31 cols shows, and
  WaitingForConfirmation @ 25 cols still shows so confirmation
  prompts never disappear on narrow terminals.
- TableRenderer: replace the content-agnostic 60-col floor with a
  column-aware threshold
  (`max(24, colCount * MIN_COLUMN_WIDTH + borderOverhead + SAFETY_MARGIN)`)
  so a 2-column table with short values renders horizontally on a
  ~30-col terminal instead of being forced into vertical mode. The
  existing `maxLineWidth` post-build check still catches actual overflow.
- TableRenderer.test: add explicit horizontal-vs-vertical threshold
  cases (2 cols @ 60/30/20 and 5 cols @ 30) and bump the alignment
  tests to contentWidth=60 with `┌` guards so they fail loudly if the
  threshold ever pushes them back into vertical no-op mode.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): preserve esc-to-cancel on narrow terminals + boundary tests

Address review feedback on the narrow-terminal rendering changes:

- Composer: when the full LoadingIndicator is suppressed on ≤30-col
  terminals during Responding, render a minimal "(esc to cancel)" text
  fallback so users retain the cancel affordance. Suppressing the full
  indicator still avoids layout breakage, but the affordance now stays
  visible.
- TableRenderer: clarify that `borderOverhead` is reused by the
  horizontal-vs-vertical layout threshold so a future change to the
  border-width formula does not silently shift the threshold.
- TableRenderer tests: add equality boundary cases at
  `ABSOLUTE_MIN_HORIZONTAL_TABLE_WIDTH` (24) and at the 5-column
  column-budget threshold (35), plus one-below cases, so a future
  `<` → `<=` regression on the strict comparator is caught.
- Composer tests: assert the fallback string is rendered when (and
  only when) the full indicator is suppressed.

Generated with AI

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): use existing 'Esc to cancel' i18n key for narrow-terminal fallback

The 169031d9c fix passed `'(esc to cancel)'` to `t()` but no such key
exists in any locale file. `t()` falls back to returning the key
verbatim, so English users saw correct text but non-English locales got
the untranslated English string — i.e. zero i18n coverage.

The repo already ships a translated `'Esc to cancel'` key in all 9
locales (used by QwenOAuthProgress and similar). Reuse it and move the
parentheses outside the call so the surrounding `()` is layout-only,
not translatable.

* test(Composer): update esc-fallback assertions to match i18n key casing

The cada422f8 fix switched the fallback from `t('(esc to cancel)')` to
`({t('Esc to cancel')})` (using the existing translated key). The
Composer tests still asserted lowercase 'esc to cancel' which no longer
appears in the rendered output.

Bump the two assertions to match the new casing.

---------

Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-12 13:58:38 +08:00
Shaojin Wen
55893875b0
feat(cli): add tools.toolSearch.enabled setting for prefix-caching models (#4069)
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* feat(cli): add tools.toolSearch.enabled setting to disable ToolSearch for prefix-caching models

ToolSearch (PR #3589) defers MCP tool loading to reduce prompt size, but
breaks prefix-based KV caching for models like DeepSeek V4 where cached
token pricing is 1/120 of uncached. Users reported cache hit rates
dropping from ~98% to ~81% and 3x cost increases (discussion #4065).

Add a `tools.toolSearch.enabled` setting (default: true) that disables
ToolSearch by adding tool_search to the deny list, triggering the
existing eager-reveal fallback in client.ts. All deferred tools are then
included in the initial declaration list, restoring prompt prefix
stability.

Auto-disable ToolSearch for deepseek-v4-* models when the setting is not
explicitly configured, since their extreme cache discount makes prefix
stability far more valuable than the ~15K token savings from deferral.
Users can override with `tools.toolSearch.enabled: true`.

* fix: address PR review — expand model detection, add tests, regenerate schema

- Remove ^ anchor from regex to handle provider-prefixed model names
  (e.g. openrouter/deepseek/deepseek-chat)
- Expand auto-detection to all DeepSeek models with prefix caching:
  deepseek-v3, deepseek-v4-*, deepseek-chat
- Add 6 tests covering: explicit disable, auto-detect for v3/v4/chat
  with provider prefix, non-deepseek skip, explicit enable override
- Regenerate settings.schema.json for vscode-ide-companion
2026-05-12 12:04:26 +08:00
jinye
32a49b4ddb
refactor(telemetry): remove dead useCollector setting and unreachable TelemetryTarget.QWEN (#4061)
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useCollector was plumbed through config (interface, constructor, getter,
env var resolution) but never consumed by the telemetry SDK — the setting
had no runtime effect. TelemetryTarget.QWEN existed in the enum but
parseTelemetryTargetValue() only accepted 'local' and 'gcp', making
'qwen' unreachable (it would throw FatalConfigError).

Remove both dead code paths along with their tests and documentation.

Part of #3731
2026-05-11 23:22:53 +08:00
JerryLee
4bba75f765
fix(cli): keep long model stats header on one line (#4032)
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* fix(cli): keep long model stats header on one line

* test(cli): cover fixed model stats columns
2026-05-11 20:35:55 +08:00
tanzhenxin
d7a25682e6
refactor(core): route side-query LLM calls through runSideQuery chokepoint (#3775)
* refactor(core): route side-query LLM calls through runSideQuery chokepoint

Folds every one-shot side-query call site through a single `runSideQuery`
entry point with `thinkingConfig.includeThoughts: false` and `fastModel`
(falling back to main) as the default policy. Adds a text-mode sibling
to the existing JSON-mode helper, plus a `BaseLlmClient.generateText`
primitive that calls `ContentGenerator.generateContent` directly so
side queries get neither user-memory wrapping nor the main-prompt
fallback that `geminiClient.generateContent` applies.

Migrated call sites: session title, recap, tool-use summary, /rename,
follow-up suggestion (direct path), ACP rewrite, project /summary,
arena approach summary, chat compression, web-fetch, insight analysis,
subagent spec generation. Six call sites override the helper defaults
explicitly (subagent gen, suggestion, ACP rewrite, /summary, compression,
insight) where main-model quality or caller-supplied model matters.

The /summary path additionally fixes a latent bug: text extraction
previously did not strip thought parts, so on thinking models the
saved `.qwen/PROJECT_SUMMARY.md` could leak `reasoning_content` into
the file. The chokepoint now strips thought parts and the request
itself goes out with thinking off.

Best-effort cosmetic callers (recap, tool-use summary, kebab rename,
suggestion) opt into `maxAttempts: 1` so transient outages don't burn
seven retries on output the user will likely never see. `isInternalPromptId`
recognises the `side-query:` prefix automatically so new call sites are
filtered without per-site allowlist updates.

Removes the `getAgentContentGenerator` workaround in `InProcessBackend`
and the `getAgentSummaryGenerator` indirection in `ArenaManager` —
arena approach summaries now run through the chokepoint against
`fastModel`, giving every agent a neutral arbiter rather than a
self-summary on its own model.

* fix(core): guard isInternalPromptId against undefined prompt_id

logToolCall calls isInternalPromptId(event.prompt_id), and tool-call
events from useToolScheduler can carry an undefined prompt_id. The
side-query refactor added promptId.startsWith(SIDE_QUERY_PROMPT_PREFIX)
without a falsy guard, so the missing id crashed the logger and broke
six useToolScheduler tests across all OS / Node matrix entries on CI.

* fix(cli,core): polish runSideQuery callers from review feedback

- Cap web-fetch, chat-compression, and ACP rewrite at maxAttempts: 1.
  These paths degrade gracefully on failure (tool error, NOOP fallback,
  null return), so 7 retries only delays the user-visible outcome.
- /summary now carries the main session's system instruction so the
  summarizer keeps the coding-assistant role, project context, and
  user memory instead of summarizing the chat in isolation.
- Add isInternalPromptId tests for the side-query: prefix so future
  callers minted via runSideQuery stay filtered out of recordings.

* refactor(core): document runSideQuery defaults and surface promptId in errors

- Add JSDoc on the model and config fields of SideQueryJsonOptions and
  SideQueryTextOptions so the fastModel-first defaulting and the
  thinkingConfig.includeThoughts: false default are visible at the API
  surface, not buried in resolveDefaultModel / applyThinkingDefault.
- BaseLlmClient.generate{Json,Text} error wraps now include promptId
  in the message and pass { cause: error }, so a side-query failure
  identifies which call site failed and preserves the original stack.
- Add tests covering maxAttempts forwarding (present + omitted) and
  rejection propagation for both JSON and text modes — the conditional
  spread is non-trivial and was previously unverified.

* fix(core): preserve per-model provider routing in side queries

BaseLlmClient was bound to the main session's ContentGenerator and only
swapped the request `model` field, so side queries targeting a fast or
alternate model inherited the main provider's baseUrl, credentials, and
sampling settings — breaking cross-provider configurations.

Move per-model generator/authType resolution out of GeminiClient and into
BaseLlmClient as `resolveForModel`. Both generateJson and generateText
now build a per-model ContentGenerator (with cache) when the request
targets a non-main model and pass the resolved retry authType through
to retryWithBackoff. GeminiClient.generateContent delegates to the same
resolver so there is a single source of truth.

Also pin the /forget destructive selector to the main model — the
runSideQuery default moved to fast model in this branch, but /forget
acts on the selection without confirmation, so a weaker fast model
could silently delete the wrong managed-memory entries.

* test(core): assert thinkingConfig/maxAttempts/model forwarding in compression

The compression caller of runSideQuery sets thinkingConfig.includeThoughts=true
and maxAttempts=1. A future refactor that silently drops either would degrade
compression quality without test failure; this assertion locks the contract.

* fix(cli): route dynamic localization through side query

* refactor(core): remove unused memory governance review
2026-05-11 19:03:14 +08:00
ChiGao
cadda23782
chore(deps): upgrade ink 6.2.3 → 7.0.2 + bump Node engine to 22 (#3860)
* chore(deps): upgrade ink 6.2.3 -> 7.0.2 + bump Node engine to 22

ink 7 requires Node >=22 and react-reconciler 0.33 with React >=19.2,
so this PR also bumps:

- Node engines (root + cli + core) 20 -> 22
- React/react-dom 19.1 -> 19.2.4 (pinned exact via overrides to keep
  the transitive React graph deduped to a single instance)
- @types/node pinned to 20.19.1 via overrides to avoid an unrelated
  Dirent NonSharedBuffer regression in sessionService tests
- @vitest/eslint-plugin pinned to 1.3.4 to avoid an unrelated lint
  regression introduced by the 1.6.x rule additions
- react-devtools-core 4.28 -> 6.1 (ink 7 peerOptional requires >=6.1.2)
- ink hoisted to root devDeps so workspace-private peer-dep contention
  doesn't push ink-link/spinner/gradient into nested workspace
  installs (which would skip transitive resolution for terminal-link)

Workflow + image + installer alignment:

- .nvmrc 20 -> 22
- Dockerfile node:20-slim -> node:22-slim
- CI test matrix drops 20.x (keeps 22.x + 24.x)
- terminal-bench workflow Node 20 -> 22
- Linux/Windows install scripts upgrade their Node version targets

Documentation alignment:

- README.md badge + prerequisites
- AGENTS.md, CONTRIBUTING.md, docs/users/quickstart.md,
  docs/users/configuration/settings.md, docs/developers/contributing.md,
  docs/developers/sdk-typescript.md, docs/users/extension/extension-releasing.md,
  packages/sdk-typescript/README.md, packages/zed-extension/README.md,
  scripts/installation/INSTALLATION_GUIDE.md

Test gating:

- Two AuthDialog/AskUserQuestionDialog tests that drive <SelectInput>
  through ink-testing-library now race ink 7's frame-throttled input
  delivery and land on the wrong option. The maintainers had already
  marked one of them unreliable (skip on Win32 + CI+Node20). Extend
  that gate to cover all environments until upstream
  ink-testing-library ships an ink-7-compatible release that flushes
  input deterministically. The other test now uses it.skip with the
  same comment. No business code changes.

Verified locally:

- npm run typecheck across all workspaces: clean
- npm run lint (root): clean
- npm run test --workspaces:
    cli  312/312 files, 4918 passed, 9 skipped
    core 266/266 files, 6836 passed, 3 skipped
    webui 6/6, 201 passed
    sdk  40/40, 283 passed, 1 skipped
- npm ls ink: single ink@7.0.2 instance across all peer deps
- single react@19.2.4 instance

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* chore: align Node 22 floor across all shipping artifacts

Reviewer (tanzhenxin) flagged five surfaces where the >=22 engine bump
leaked: SDK package metadata, web-templates engines, /doctor runtime
check, main bundler target, and SDK bundler target. Each was a separate
escape hatch letting Node 18/20 consumers install or run the artifact
on an unsupported runtime.

- packages/sdk-typescript/package.json: engines.node >=18.0.0 -> >=22.0.0
- packages/web-templates/package.json: engines.node >=20 -> >=22
- packages/cli/src/utils/doctorChecks.ts: MIN_NODE_MAJOR 20 -> 22
- esbuild.config.js: target node20 -> node22 (main CLI bundle)
- packages/sdk-typescript/scripts/build.js: target node18 -> node22 (esm + cjs)
- packages/cli/src/utils/doctorChecks.test.ts: rename test label to v22+

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* ci(e2e): bump E2E workflow Node matrix to 22.x

Reviewer (tanzhenxin) flagged that e2e.yml still pinned node-version
20.x while root engines is now >=22, so every E2E run on push would
either fail at npm ci with engine error or silently exercise the bundle
on a runtime that's no longer in ci.yml's test matrix.

The macOS job in the same workflow already reads .nvmrc (which is 22)
so this only updates the Linux matrix.

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* fix(deps): drop root wrap-ansi override so ink 7 gets its declared dep

Reviewer (tanzhenxin) flagged that the root overrides.wrap-ansi: 9.0.2
predates this upgrade and forces every consumer (including ink) to v9,
while ink 7 declares wrap-ansi: ^10.0.0. The lockfile had no nested
install under node_modules/ink/, so ink 7 was running with a transitive
dep one major below its declared minimum.

Dropping the global override lets ink resolve its own wrap-ansi 10
nested install (now visible in the lockfile under
node_modules/ink/node_modules/wrap-ansi), while the cli package's own
direct `wrap-ansi: 9.0.2` dependency keeps the cli code path
(TableRenderer.tsx) on the version it has been tested against. The
nested cliui override is preserved for yargs which still needs v7.

Verified via `npm ls wrap-ansi`:
- ink@7.0.2 -> wrap-ansi@10.0.0 (newly nested)
- @qwen-code/qwen-code -> wrap-ansi@9.0.2 (unchanged)
- yargs/cliui -> wrap-ansi@7.0.0 (unchanged)

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* test(InputPrompt): un-skip placeholder ID reuse after deletion

Reviewer (tanzhenxin) flagged that the new it.skip on the
'should reuse placeholder ID after deletion' test was undisclosed in
the PR description and removed coverage of real product behavior
(freePlaceholderId / bracketed-paste backspace path) without a
TODO(#NNNN) link.

Their argument was sound: the skip rationale pointed at ink 7's input
throttle, but this same file just bumped the wait helper from 50ms to
150ms specifically to give ink 7 frame time. Re-running the test under
the bumped wait shows it passes reliably (5/5 runs in the full-file
context, 9/10 alone), so the skip was masking the throttle-flake that
the wait bump already addresses, not a real product bug.

Drop the it.skip and the now-stale comment so coverage of the
freePlaceholderId reuse logic is restored.

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* test(InputPrompt): bump first prompt-suggestion test wait to 350ms

The "accepts and submits the prompt suggestion on Enter when the buffer
is empty" test is the first in its describe block, so it pays the
renderer cold-start cost. On macOS-22.x CI runners that pushes the
Enter → onSubmit microtask past the default 150ms post-Enter wait. Match
the 350ms initial render wait used immediately above to absorb the cold
start.

* Revert "test(InputPrompt): bump first prompt-suggestion test wait to 350ms"

This reverts commit 6add83b62e.

* test(InputPrompt): wait for followup suggestion debounce before pressing Enter

Root cause of the failing prompt-suggestion tests on macOS and Windows
CI is not flaky timing of the test post-Enter wait — it's the 300ms
debounce inside createFollowupController.setSuggestion (shared core).
The Enter handler reads followup.state.isVisible synchronously, so if
the debounce timer has not fired before stdin.write('\\r'), the
suggestion path is skipped and onSubmit never runs. No amount of
post-Enter wait can recover from that — the keypress was already
processed against stale state.

The original wait(350) only left ~50ms margin over the 300ms debounce,
which ink 7 / React 19.2 mount overhead consumed on slow Windows
runners. Bump the initial wait to 700ms (named SUGGESTION_VISIBLE_WAIT_MS)
to give the debounce timer + cold-start render a generous buffer.

Apply to the two sibling tests too — without the wait their "does not
accept" assertions pass trivially when suggestion is never visible,
which is a false green that hides regressions in the actual reject path.

* fix(deps): align cli wrap-ansi with ink 7 (9.0.2 -> ^10.0.0)

Ink 7 ships its own wrap-ansi@10. CLI's direct dep was pinned to 9.0.2,
causing two copies of wrap-ansi in node_modules and a potential drift in
CJK width / ANSI handling between ink's internal text wrapping and our
TableRenderer.

Upgrading the CLI's direct dep to ^10.0.0 lets npm dedupe to a single
wrap-ansi@10 used by both ink and TableRenderer. API surface is
identical; the only documented behaviour change is that tabs are
expanded to 8-column tab stops before wrapping, which TableRenderer
doesn't feed in.

TableRenderer test suite (43 tests) passes against wrap-ansi@10.

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* chore(deps): document @types/node 20.x pin in overrides

The override pinning @types/node to 20.19.1 (while engines require
Node >=22) is intentional: bumping to @types/node@22.x re-introduces
a Dirent<NonSharedBuffer> type regression that breaks
@qwen-code/qwen-code-core/sessionService tests.

Add a sibling "//@types/node" note inside `overrides` so future
maintainers see the rationale and know when to revisit the pin
without having to dig through PR #3860 history.

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* test(AskUserQuestionDialog): link skipped Submit-tab test to tracking issue

The 'shows unanswered questions as (not answered) in Submit tab' test
was switched to `it.skip` in the ink 7 upgrade because
`ink-testing-library@4.0.0` doesn't flush input deterministically
through ink 7's 30fps throttle.

Add a `// TODO(#4036):` marker so the skip is greppable and can be
re-enabled once upstream ships an ink-7-compatible release.

Refs #4036

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* fix(deps): move @types/node pin comment out of overrides block

npm's `overrides` field requires every key to be a real package name —
the `"//@types/node"` comment-key added in 205855875 trips Arborist with
"Override without name" and breaks `npm ci` across all CI jobs.

Move the explanation to a sibling top-level `"//overrides"` key, which
npm ignores at the document root. Same documentation value, no
override-parser collateral damage.

---------

Co-authored-by: 秦奇 <gary.gq@alibaba-inc.com>
Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
2026-05-11 17:29:50 +08:00