Audit context for this PR: this came out of a five-lane deep review of the whole hosted Managed-agent surface (~60k lines across the two Java modules, packages/core/src/managed-runtime, and the Web Shell managed panel). Every High/Critical claim was re-verified line-by-line against main (a7deb01) before being acted on.

The good news first: point-level quality is consistently high — tenant predicates on store queries, optimistic concurrency, digest chains, workspace-mount containment (startsWith+NOFOLLOW+toRealPath), and the TS↔Java wire contract (spot-checked acquire/commit fields, headers, lease bounds, error envelopes, SSE frames) all held up, with zero contract drift found.

What this PR fixes are the four most contained items. What remains is tracked in six follow-up issues:

• feature(managed-agent): broker authentication and broker-provisioned writer credentials #13180 Broker authentication & broker-provisioned writer credentials (design-first; tenant identity is currently a bare header and writer tokens are self-minted TOFU) — the one Critical.
• fix(managed-agent): database amplification on session hot paths (snapshot rewrite, SSE, lists, publication) #13181 Database amplification on session hot paths (full snapshot rewrite inside the session row lock per 200-event batch, per-event-per-subscriber SSE permission SQL, N+1 session lists, publish-path journal rescans) — the first thing expected to hurt a hot tenant in production.
• fix(managed-agent): retry loops without terminal states and a permanently wedged projection #13182 Retry loops without terminal states (materializer gap → permanently wedged projection + 10Hz stack traces; unbounded turn/lifecycle/action retries; scheduler halt-on-transient and non-atomic close on the TS side).
• fix(runtime-broker): cross-process admit/release race, shared single-thread renewals, single-token HTTP #13183 Runtime-broker robustness (cross-process admit/release race on multi-broker MySQL, all lease renewals sharing one thread with synchronous JDBC, 100ms×30min v3 polling, single-token HTTP over plaintext beyond loopback).
• fix(managed-agent): bounded growth for managed session stores and panel projection #13184 Bounded growth (authority events retained for process lifetime, append-only journals never compacted, per-100s renewal records forever, unbounded map growth, uneven store hardening; panel-side incremental projection, corrupt SSE frame deadlock, gap resync discarding loaded history).
• feature(sdk-java): static analysis gates and load-budget tests for managed broker endpoints #13185 Java static-analysis gates and load-budget tests (SpotBugs/OWASP, query-count and latency budget tests — the guard rails that would have caught the above before review).

@qwen-code-ci-bot Addressed in 4e085e6 (and now on HEAD 99c465f after the main merge): the plain /transactions:commit retry was withdrawn from this PR, so the fault gates' single-attempt contract no longer conflicts with it — Hosted process fault gates / MySQL 8.4 / Java 21 is green on the current head. The diagnosis in your note was exactly right: both drivers pin exactly one targeted commit attempt (hosted-store-failure-driver.ts "Harness must not retry the failed write", hosted-shell-output-driver.ts injections counter, whose receipt commit travels the plain non-publication path).

The retry itself stays on the roadmap as a deliberate pairing: it must land together with a driver restatement of bounded, byte-identical, effect-once retry semantics (byte-equality of attempts, replayed: true forwarding on reply cases, and recoveryBlocked verdicts waiting out the bounded backoff). The packaged implementation and unit tests are preserved in this branch's history (ea4e495) and the concrete driver adaptation is written up in #13182.

On the triage review's non-blocking notes, also addressed in 3ad03d2:

Merge tests / unmeasured perf. The two merge cases are semantic-preservation guards by intent — the fast path produces byte-identical output to the general path for every valid input, so no value-space assertion can discriminate them. What now pins the existence of the append path is the empty-incoming crash test (which the general path would survive but the naive fast path TypeErrors on). For the measurement: 4000 incremental single-event merges (the streamed-delta shape) run 9.0ms on the fast path vs 234.4ms on the old Map+sort path (~26× at 4k events, gap widening linearly with history length) — ymmv, but the complexity shape (O(n log n) rebuild per delta → amortized O(1) append) is the point.

Two load-bearing invariants, now documented in code rather than tribal knowledge: failureRetryDelayMs carries a comment that rung zero must stay exactly 3000 because ManagedSessionsPage pins the gap-recovery cadence on a 2999/3000ms boundary in another file; and mergeManagedEvents documents that the append path assumes current is already ascending and deduplicated (stream state and transcript pages are), so unsorted first arguments must go through the general path.

Containment scope. Confirmed and intentional: the new check runs on the V2 execution path where the worker resolves a relative path itself; V3 relies on the hosted harness's normalizeWorkspaceRelativePath rejecting absolutes and .. at the boundary, which is unchanged — that is why the PR body says only the worker's own defense-in-depth changed.

Round summary for the R4 review (sha 3e84c17): all 8 inline comments are fixed, witnessed, replied to, and resolved.

On the convergence note — the cluster is real, and this round went after the shared root rather than the instances: the stream lifecycle now has one stop protocol (failed()), one health model per endpoint (delivery/liveness reset for the stream, an independent ladder for the snapshot read, a private counter for the poller), and one observability slot (stoppedReason that retires on later authoritative success) — most of rounds 1–4's siblings were different projections of those three rules applied inconsistently. The deferred probes (one constant doing four jobs; rung-zero comment naming) are acknowledged and consciously not acted on: splitting BASE_RETRY_DELAY_MS into purpose-named constants is a naming refactor, and the hook semantics it feeds are now pinned per site, so it would be churn without new information. Recorded for any future dedicated cleanup.

Verification for this round: full managed suite 225/225; seven mutants, each redding exactly the test that targets it (keep-alive return, snapshot success reset, snapshot clearing write, alert precedence, alert chain removal, stream ladder flatten, bootstrap ladder flatten); eslint/prettier/tsc --build clean; the mock type-shape probe (tsc --noEmit --strict over the hook spec) reports zero diagnostics.

Round summary for the R5 review (sha ca150cb): the Critical is fixed and each Suggestion has a landed fix or a recorded disposition.

Fixed. The sticky terminal stop no longer masks the page's own action error — it renders as a sibling second alert element, keeping the first positional slot for the terminal reason (and the hook's transient error behind it), which also avoids the mirror image of a stale page error masking a later terminal reason. The phase-2 phase of the round-4 page spec now genuinely traverses the merge-clear path (fresh event id on the reconnect), and an expired credential is retryable everywhere by construction (getHeaders is re-per-request), while 404/410-class session-existence answers stay terminal and self-retiring.

Recorded disposition (not landed, round-5 posture). R5-1's retirement-rule debt — origin-tagged retirement (transcript-derived verdicts retired only by transcript reads, summary-derived only by summary reads, which also closes the loadOlder gap) plus a dispatch-sequence guard against a pre-verdict answer erasing a newer verdict — is real, but its worst observed shape is a banner flapping on a ≤30s self-healing cadence, not a fails-closed or masking path. It is recorded here as the follow-up to land as one coherent iteration of the stop/retire rule, with the conservative intermediate ("clear only at the Promise.all snapshot site") deliberately skipped because it makes verdicts unretireable in the recovery case the rule exists for.

Also acknowledged: the two deferred probes (liveness-clause counter anchoring for slow-to-fail backends; the shared constant) stay recorded-and-unacted, and the disclosed review gaps (CLI integration lane skipped; reverse audit cut at round 6) are noted — the corresponding local verification here ran the full components/managed suite (227/227) plus seven targeted mutants, but did not re-run the CLI integration lane.

Verification: managed suite 227/227; four mutants red exactly their target (masked single chain, alert-condition drop, per-event sticky clear, auth-exclusion removal); eslint/prettier/tsc --build clean.

Round summary for the R6 review (head eb6c54c): all three Criticals fixed on top of a non-trivial merge, each pinned by a spec that reds under its own mutation.

The merge. #13206 landed its resync rewrite (paged-history-preserving gap snapshots, stall guard, corrupt-frame skipping) into the same hook this branch had already restructured for failure health. The conflict was resolved as a semantic weave rather than a pick-a-side: gap resync merges through preserveLoadedPages; definite-4xx reads keep this branch's record-don't-kill policy with the snapshot's own failure ladder; the stall guard fires only when three consecutive resyncs fail to advance; the liveness/delivery reset and the two independent counters are unchanged. Both test suites coexist, normalized onto the shared reactHarness probe shape. M5a (#13167) landed mid-merge — the branch was merged onto it too, and the M5a worker/incarnation asserts verified present afterwards.

The three Criticals.

• R6-1: snapshot legs are tagged so a transcript-leg definite 4xx records stickily but keeps the bootstrap alive; only a session-leg definite answer is terminal. New spec: 'keeps bootstrapping when only the transcript leg is definitively gone'.
• R6-2: the summary poller records a definite 4xx and keeps backing off on its ladder instead of dying for the mount; the cadence spec now states this policy by name ('backs off and keeps polling after a definite summary answer instead of stopping'). Rung zero and the retirement-through-snapshot shape are untouched.
• R6-3: the clean-close summary read has its own try/catch — recorded, never a kill — matching the gap branch it sits next to. New spec: 'survives a definite session-leg answer from the clean-close summary read'.

Audit discipline. Every new pin was mutation-verified twice: once pre-merge and once again on the merged M5a base (each mutation reds exactly its spec, pristine revert byte-identical afterwards). Marker audit verified both sides' discriminating markers survived the auto-merges (fast-path merge, containment, managed-runtime-incarnation, failure counters, stoppedReason, failed()). Full verification on the final tree: web-shell managed 293/293, hook file 50/50, CLI managed suites 954/954 across 6 files, core managed-runtime 1930/1931 with the single failure being managed-session-authority.hook-scale's 15s timeout — a load flake that passes in isolation; tsc --build and eslint/prettier clean. One note: fixing the one rebuilt-splice in the hook spec file produced an order-dependent wall-clock race in the corrupt-run spec, stabilized with a single documented macrotask pump; it is a test-harness concern only.

Two red lanes, two different causes — one fixed in 07a9756, one investigated below with a rerun requested.

Lint & Static (Check VS Code companion notices are up-to-date) — my mistake, fixed. The merge commit had absorbed a NOTICES.txt regeneration produced from my local worktree, whose store resolves a few transitive versions differently from CI's clean frozen-lockfile env (is-fullwidth-code-point, fdir, picomatch). Restored to main's file in 07a9756 and re-pushed.

Hosted process fault gates / MySQL 8.4 — HostedWorkspaceToolTurnIT.packagedHarnessUsesSavedWorkspacesThroughRealBrokerWorkerAndSqlStore, expected: 0 but was: 1. Investigation so far, with the evidence for calling it not-this-PR:

1. Named-failure source is unreachable by this PR's diff. The driver state that fails the turn is only thrown at packages/cli/src/serve/hosted-workspace-tool-turn.ts:726 ("Hosted Workspace profile refused a tool call", on the undeclared-tool / duplicate-callId / wasOutputTruncated / hadIncompleteArguments guard). git diff --name-only $(git merge-base 4e6a02ad86 origin/main)..HEAD and the M5a-side diff contain neither that file nor its call sites. The files/rewind 409s right before the turn error are the undo side-effect of the already-failed turn, not the cause.
2. Cross-branch smoking gun. The identical IT, textbook-identical terminal signature (expected: 0 but was: 1, two turns each ending in the same refusal), fired at 10:26 on run 37115037789 on docs/h3-shell-monitor-design — a branch whose diff is docs-only and which does not contain M5a (checked git merge-base --is-ancestor) — 16 minutes before this PR's run. A docs-only branch cannot break a MySQL E2E, and the M5a theory is excluded by its absence there.
3. Lane history swings the same lane. The lane was green yesterday (nightly on the pre-M5a base) and at 19m03s on this branch's earlier head (run 36941665147); other branches hit the same test today within a narrow window, consistent with lane/infra (MySQL 8.4 self-hosted service + packaged harness) temperature rather than a code regression: the two runs fail deterministically only at the packaged case while every sibling FG class (FG6A/B/D/E/F) passes, including cases that drive packaged file-tool writes — which also clears this PR's one cli-side worker change (admitsDirectory containment) since the refusal is a different error class and a different throw site.
4. Honest limitation: I cannot reproduce locally — this MAC has no docker/podman CLI and no MySQL service (only brew MariaDB, un-bootstrapped), so no packaged MySQL E2E run was possible; attribution is from the lane logs and the cross-branch run-set, not a local rerun of the IT.

Criterion seeded for the rerun: green ⇒ lane-transient confirmed; same point red again ⇒ deterministic lane/main regression, and I will file the tracking issue (normalised title) with the packaged-turn logs attached. Rerunning now.

@qwen-code /resolve

Real-stack verification, round 5 — #13179 @ 1780afcd (macOS)

Follow-up to rounds 1, 2–3 and 4. This round covers the two autofix rounds (9eecbc5c0e, 1780afcd3c) and the current main 933dc0a614.

Verdict

1. Merge blocker — conflict with main. The PR no longer merges: managed-runtime-tool-executor.ts conflicts with feat(managed-agent): admit glob in new hosted-workspace /2 profiles #13166, merged into main today. feat(managed-agent): admit glob in new hosted-workspace /2 profiles #13166 adds a realpath-based containment in exactly the block item 1 changed, and it supersedes item 1. On the real stack, main's executor refuses all three read escapes from round 1, plus an absolute-path read that item 1 deliberately leaves to the Harness.
   • The resolution I validated: take main's side for the executor, then change the expected message in the PR's two containment tests (two lines). The cli plan suites then pass 935/935.
   • /resolve is already requested; this is the shape it should land.
2. Panel — the round-4 F1 fix does not take effect on this server. Autofix round 1 landed my round-4 F1 fix and the read_file test. Autofix round 2 (R11-1) then gated the proof-of-life expiry on a delivered frame.
   • Here, resuming an idle Session delivers no frame at all, only :keepalive comments, which the client drops. So on the real stack the expiry never fires: (c) 404, (c′) 502, a real outage and a 401 period all wait for the next event again, exactly like main.
   • This is not a regression against main. But the spec that claims "expires … on an error-free idle reconnect" models the idle reconnect with a replay frame this server never sends.
   • A small candidate counts keep-alives as the answer. It keeps R11-1's black-hole guarantee and clears the red line 20–28 s after recovery on the real server.
3. Fixed and holding:
   • (a) a 404 on a summary poll clears at 6.1 s; (b) a 404 on the bootstrap's session read loads at 3.1 s;
   • the bootstrap race: 20/20 pages stop at the first attempt;
   • (d) a failed "Older history" fetch is now cleared by the next streamed event (main's behaviour; 9439da72 kept it over the live turn);
   • the deleted-Session line stays up.

What ran

• Trees. I trial-merged 1780afcd into main 933dc0a614 locally, resolving the one conflict to main's side, so the executor is byte-identical to main. Everything else is the PR's 8 files.
• Rebuilt from that merge: the Spring jar and the packaged CLI, Harness and worker.
• Arms, all watching the same Session at the same time:
  • main;
  • the previous head 9439da72 (same tree, only use-managed-session.ts swapped back);
  • the head;
  • the head plus the keep-alive candidate.
• Static checks. Web-shell managed 332/332; tsc for cli and web-shell, eslint and prettier all clean. The cli plan suites pass 933/935: the 2 failures are the PR's containment tests, which still expect the old message (see §1).
• CI at 1780afcd. The test and build workflows passed (Qwen Code CI, SDK Java, Serve A/B, web-shell visuals, tui-parity). The two red label / authorize entries are cancelled runs from 2026-10-05 22:25.

1. Merge conflict: main's #13166 supersedes item 1

Containment matrix with main's executor (trial merge, real Spring + Broker + packaged worker):

Resolution. Take main's executor. Keep the PR's two tests but change the expected text to 'is not within the Session working directory' (conflict-resolution-test-messages.patch, 2 lines; it also applies to 1780afcd). With that, the cli plan suites pass 935/935. main's own suite already covers relative ../ reads and writes (managed-context-worker.test.ts, e.g. ../web/secret.txt, ../web/pwned.txt), so the PR's two tests can be kept with the new message or simply dropped.

Description. Item 1 should then be described as "superseded by #13166". The title's "worker path containment" half no longer corresponds to a code change in this PR.

2. Proof-of-life: the R11-1 gate never fires on this server

What the server sends. A raw capture of a 40 s idle resume (afterSequence = the Session head) shows no frame at all after the head, only :keepalive comments about every 15 s. java-managed-agent-client drops comments (if (!hasContent) return undefined; // heartbeat or comment), so on an idle Session delivered never becomes true and if (delivered) expireAnswered('stream') never runs.

Candidate — candidate-keepalive.patch; applies cleanly to 1780afcd.

• Change.
  • streamEvents takes an optional onAlive and calls it for each complete heartbeat or comment frame (not for a trailing fragment).
  • The provider passes onAlive through.
  • The hook's onAlive marks the attempt as delivered and, if the proof-of-life point has already passed, runs the expiry it was waiting for.
• Why R11-1 still holds. A black-holed connection never sends a keep-alive, so the gate and the catch-side restore are unchanged.
• Size. Source +26/−2 across client, provider and hook; tests +124:
  • one client spec: each keep-alive is reported, a trailing fragment is not;
  • two hook specs: a 502 and a 404 followed by a keep-alive-only idle reconnect, where the keep-alive lands after the 3 s point. All three fail on the head.
• Tests. Web-shell managed 335/335.
• Real stack. The rows above. The deleted-Session line still stays, because each reconnect answers 404 within milliseconds and never stays open long enough to receive a keep-alive.

3. Holding / notes

• Bootstrap race. 20/20 pages stop at the first attempt.
• Deleted Session (240 s, 2 panels per arm). The head made 33 / 30 requests per panel and main made 160. The head's ladder averages 16.8 s at the cap, matching the expected 16.5 s. An earlier single-panel run showed 42 requests; I re-ran it with two panels per arm side by side and attribute that to sampling.
• Duplicate ids. None in 326 transcript reads taken while Turns were streaming (2 340 across all rounds).
• PR body. Unchanged since round 4, and now also out of date on item 1.

Evidence — wenshao assets-pr13179 @ 12a7a523, under pr13179/r5/:

• the two figures and the two patches;
• results/: the trial-merge conflict log, the matrix with main's executor (including the absolute read), every (a)/(b)/(c)/(c′)/(d)/(e) / outage / 401 / deleted / unknown console, the raw SSE capture sse-idle-resume.raw, and static-check and candidate-suite logs;
• harness/: shape (e) and the absolute-read vector.

🤖 Addressed the latest review feedback (round 3/100). What changed, and what I pushed back on: · 已处理最新评审反馈（第 3/100 轮）。改动内容与我反驳保留之处如下：

Autofix round — PR #13179 (base-conflict resolution)

Feedback triage

feedback.md listed no new reviews, inline comments, issue-level comments, or failed checks — the only work this round was the requested merge of origin/main (the branch had last merged main at 69d5db2, before the managed-agent M5b/H3/glob wave and the #13342 R2 fixes landed). Merged as ae0f9f863f with three conflicted files resolved by reading both sides:

Conflict dispositions

1. packages/cli/src/serve/managed-runtime-tool-executor.ts — took main's side. Main's run() now contains the file arm's realpath + session-ownership containment and the glob arm (from feat(managed-agent): admit glob in new hosted-workspace /2 profiles #13166, feat(managed-agent): H3 background Shell and Monitor runtime #13265, feat(managed-agent): Make local Runtime tool outcomes durable (M5b) #13291), which strictly subsumes this branch's small lexical admitsDirectory check on resolved relative paths (the branch's only change to this file). The branch's two containment regression specs survive against main's stronger scheme; their expected message was updated to main's sanitized refusal (not within the Session working directory). The shell-directory admitsDirectory check both sides share is untouched, and its worker-level pins still pass.

2. packages/web-shell/client/components/managed/use-managed-session.ts — kept the branch's side. The branch replaces the single error field with per-answer-authority signals (session/transcript/stream legs, terminal-verdict monotonicity, proof-of-life gating), and the merged ManagedSessionsPage renders its stoppedReason/stoppedLeg contract, so main's errorOwnership writers model cannot satisfy the page. Main's hook delta was exclusively that writers model — the same concern the signals model already covers per-leg — so nothing from main's hook was lost.

3. packages/web-shell/client/components/managed/use-managed-session.test.tsx — union of both suites. Restored the createRoot/root scaffolding main's 24 new specs mount with (the branch had moved its own specs to the reactHarness helpers), then reconciled them with the branch's hook:

   • 7 specs passed unmodified (their pinned behaviors coincide with the signals model).
   • 13 specs retimed: they stepped the old fixed 3000ms poll/retry cadence, but the branch's failure ladder jitters rung 1 to 3000–5999ms; each post-failure recovery advance now steps 6000ms, which covers the whole rung. Assertions unchanged. The hook suite ran 5× green under real jitter.
   • 1 spec partially re-pointed: disarms the stall alert once the stream advances again — its mid-stall beat pinned main's persistent stall slot (a stream failure revealed the still-armed stall again after a clean pass). The branch books the stall in the stream leg's own slot, so the failure takes that slot and the clean pass expires it; the beat now asserts that, and the spec's re-arm beat still pins the stall lifecycle. Its two summary-blip beats were re-phased to the branch's leg semantics (a session-leg success retires the blip).
   • 3 specs dropped (recorded in test-weakening.json with surviving coverage named): ends a dropped stream's failure once the reconnect establishes and idles pins bare onEstablished clearing of a failure on an open-but-silent reconnect — the exact behavior this branch's HEAD commit (1780afc) deliberately gates on an answered attempt, with the same scenario pinned under the branch's polarity by keeps a transient stream failure standing through an unanswered reconnect and expires a transient stream failure on an error-free idle reconnect. reveals the stall alert ahead of booked stream and paging conditions and reveals a still-live stream failure ahead of a paging condition pin main's fixed reveal priority and persistent stall slot, which the branch's newest-live-condition display and per-leg stall re-assertion deliberately replace (surviving pins named in the JSON).

No inline threads existed this round, so no resolved-comments.txt and no comment-replies.json. Nothing was declined or escalated; the one genuinely contested semantic (establishment vs. answered-attempt as success evidence) was already decided and pinned by the branch's most recent commit, so the resolution follows it.

Verification

• COREPACK_HOME=/tmp/corepack-cache npm run build — passed (the sandbox denies corepack's default $HOME/.cache dir, so the cache was redirected; the build itself is clean)
• npm run typecheck — passed
• npm run lint — passed
• vitest packages/web-shell/client/components/managed/ — 389 passed (15 files), run again post-commit: green
• vitest packages/web-shell/client/components/managed/use-managed-session.test.tsx ×5 — 94/94 each run (flake check of the retimed specs under real jitter)
• vitest packages/web-shell (full) — 10899 passed (411 files)
• vitest packages/cli focused: managed-runtime-file-history, managed-runtime-tool-executor, managed-runtime-tool-worker, managed-runtime-provider-worker, managed-context-worker — 979 passed (5 files); file-history + executor re-run post-commit: 86 passed
• Mutation probe: no new guard or branch was added this round (a conflict merge; every retained behavior is witnessed by the union suite above), so there was nothing to probe — the three dropped specs are covered by the surviving pins named in test-weakening.json

🧪 Gate advisory — this round weakened or removed pre-existing tests (machine-measured, not agent-authored):

• packages/web-shell/client/components/managed/use-managed-session.test.tsx — net 14 assertion(s) removed

The round recorded evidence for each (below, agent-authored). Weakening is sound only when the pinned behaviour itself was wrong or the coverage demonstrably survives elsewhere — read each reason against the diff. · 本轮弱化或删除了既有测试（门自动测量，非 agent 文本）。下列理由由 agent 撰写：仅当被钉住的行为本身有误、或覆盖确有替代时才成立，请对照 diff 逐条审阅。

• packages/web-shell/client/components/managed/use-managed-session.test.tsx: Merge-resolution removal of three main-side specs that pin the replaced errorOwnership slot machine, which this PR deliberately supersedes with per-answer-authority signals. (1) 'ends a dropped stream's failure once the r

Base-conflict check · 基分支冲突检查: conflicted with main — resolved in this push. · 与 main 有冲突——已在本次推送中解决。

Re-review when you have a moment. After round 100 this bot stops and leaves the PR for a human. · 有空请复审；第 100 轮后本 bot 停止并将 PR 交给人工。

🧠 Handled by Qwen Code · model/模型 kimi-k3 · CLI 0.25.0

🩺 serve daemon A/B

Built the PR base vs this PR head 79d77b2, drove a fixed endpoint set against each, and diffed the JSON responses. Only fields that changed are shown.

✅ No response changes against the PR base across 12 scenario(s).

— Qwen Code · serve A/B

🤖 Addressed the latest review feedback (round 4/100). What changed, and what I pushed back on: · 已处理最新评审反馈（第 4/100 轮）。改动内容与我反驳保留之处如下：

Autofix round — PR #13179 @ f82bab116e

One commit this round: f82bab116e fix(web-shell): expire stream verdicts on heartbeat-answered idle reconnects (#13179).

Feedback disposition

[ic:6018332618] §1 — Merge conflict: main's #13166 supersedes item 1

Decision: already resolved; verified, no code change needed. The merge commit ae0f9f863f (landed before this round) resolved the conflict in exactly the shape the feedback validated:

• packages/cli/src/serve/managed-runtime-tool-executor.ts is byte-identical to main (git diff origin/main HEAD on that path is empty) — main's realpath/ownership containment was taken.
• The PR's two containment regression specs (packages/cli/src/serve/managed-runtime-file-history.test.ts:503,544) now assert main's 'is not within the Session working directory' message — the two-line change the feedback prescribed.
• That suite passes 33/33 (see Verification), and the PR's remaining diff vs the merge-base no longer touches the executor or its worker tests.

Open note for the maintainer (not actionable by this bot): the feedback also asks that the PR description/title be updated to describe item 1 as "superseded by #13166". PR metadata edits are a network write owned by the workflow; this bot has no GitHub credentials, so the stale description is flagged here rather than changed.

[ic:6018332618] §2 — Proof-of-life: the R11-1 gate never fires on this server

Decision: implemented the feedback's keep-alive candidate. Confirmed the mechanism in code before editing: on an idle-Session resume the server sends only :keepalive comment frames, which decodeFrame dropped (return undefined; // heartbeat or comment), so delivered never became true and the proof-of-life timer's expireAnswered('stream') never ran.

Changes (+28/−3 source, +180 tests across 7 files):

• java-managed-agent-client.ts — streamEvents takes an optional onAlive and calls it for each complete heartbeat/comment frame; a trailing fragment (mid-frame disconnect) is not reported.
• managed-agent-provider.ts — subscribeEvents options gain onAlive?(): void (optional; other implementers unaffected).
• java-managed-agent-provider.ts — passes request.onAlive through to streamEvents.
• use-managed-session.ts — the hook passes onAlive, which marks the attempt as delivered and, once the proof-of-life point has passed, lands the expiry the timer was holding. The catch-side verdict restore is unchanged, so a keep-alive-credited attempt that then fails still restores its terminal verdict.

Why R11-1's black-hole guarantee holds: a black-holed connection never sends a heartbeat, so onAlive never fires — the existing "keeps a … verdict standing through an unanswered reconnect" specs (unchanged) pin that. The deleted-Session banner also stays up: a deleted Session's reconnect answers 404 within milliseconds, before any keep-alive can arrive, and the deleted-Session specs pass unchanged. The stall warning is likewise unaffected — expireAnswered never expires stall entries, and "keeps the stall warning through an idle connection that never advances" passes unchanged.

New witnesses (all fail on the pre-round head, pass now):

• Client: each complete keep-alive is reported to onAlive; a trailing fragment is not.
• Provider: keep-alives are forwarded to the subscribe caller.
• Hook ×2: a 404 (terminal) and a 502 (transient) followed by a keep-alive-only idle reconnect, with the keep-alive landing after the 3 s proof-of-life point — the standing record expires when the keep-alive lands (t=7000), not at the proof-of-life point (t=6000).

Mutation probes performed (guard removed → focused suite red → restored → green):

1. Hook: dropped if (proofOfLifePassed) expireAnswered('stream') → both new hook specs failed; restored → green.
2. Client: dropped if (!trailing) onAlive?.() → the new client spec failed; restored → green.
3. Provider: dropped request.onAlive pass-through → the new provider spec failed; restored → green.

Verification

• npm run build (with COREPACK_HOME=/tmp/corepack-cache; the sandbox denies the default corepack cache dir with EACCES) — passed
• npm run typecheck — passed
• npm run lint — passed (first run flagged require-yield in the new 502 spec; fixed with the yield* []; idiom the sibling spec uses, re-linted clean)
• npx prettier --check on all 7 touched files — passed (after one --write on the provider spec)
• npx vitest run client/components/managed/ in packages/web-shell — 15 files, 393/393 passed
• npx vitest run src/serve/managed-runtime-file-history.test.ts in packages/cli (item-1 containment suite) — 33/33 passed
• Mutation probes 1–3 above — each failed red with the guard removed, green restored

Not run: real-stack E2E (requires the Spring/Broker/packaged-worker stack; the feedback's own real-stack rows for this candidate showed the red line clearing 20–28 s after recovery — CI and the next real-stack round remain the final gate).

Base-conflict check · 基分支冲突检查: no conflict with main. · 与 main 无冲突。

Re-review when you have a moment. After round 100 this bot stops and leaves the PR for a human. · 有空请复审；第 100 轮后本 bot 停止并将 PR 交给人工。

🧠 Handled by Qwen Code · model/模型 kimi-k3 · CLI 0.25.0

🖼️ web-shell visual preview

Rendered against a mock daemon (no real backend): the PR base vs this PR head 79d77b2. Only screenshots that changed are shown (flows below, if any, are head-only) — refreshes on every push.

Screenshots · before / after

ℹ️ No screenshot changed against the PR base — but this PR edits 1 render-shaping file:

• packages/web-shell/client/components/managed/ManagedSessionsPage.tsx

Either the change has no visual effect (logic, plumbing, a state the scenarios never reach), or no scenario renders this UI — in which case the preview cannot see it, and an empty result is a coverage gap rather than a clean bill of health. To make it visible, add a scenario to packages/web-shell/client/e2e/visuals/screenshots.spec.ts that seeds whatever state the UI is gated on; it then appears here as a head-only (NEW) capture.

_{Full-resolution recordings (.webm) are attached to the workflow run.}

— Qwen Code · web-shell visuals

🔀 Base updated: red check(s) [Test (ubuntu-latest, Node 22.x)] pass on current main — merged current main via update-branch; CI will re-run.

Qwen Code did not run conflict resolution for this request.

PR #13179 does not currently have merge conflicts with main.

Real-stack verification, round 6 — #13179 @ 2061be72 (macOS)

Follow-up to rounds 1, 2–3, 4 and 5. This round covers autofix rounds 3–4 (ae0f9f863f conflict merge, f82bab116e keep-alive) and the current main ac497aee.

Verdict: both round-5 items are resolved and hold on the real stack, and the PR now merges cleanly into main. One small new issue comes from how the keep-alive interacts with R11-1's restore; it has a one-line candidate, and I'd take it before merging. Nothing else blocks.

• Conflict. Resolved exactly as suggested: the executor is byte-identical to main (feat(managed-agent): admit glob in new hosted-workspace /2 profiles #13166), and the two containment tests assert main's message. Item 1 is now tests-only.
• Keep-alive. It works against the real server. After one 404 / one 502 on a stream reconnect, the red line clears at 21.1 / 20.8 s; after a real outage, 20.1 s after recovery. A 30 s black-holed reconnect still holds the line for the whole hole (R11-1 kept).
• New (g): suppose one reconnect gets a 404, and a keep-alive on the next, healthy connection then clears it. If that long-lived connection later drops with a network error, the old 404 comes back as a terminal stop. On the real server that means "The Session was not found." over a live Session, for about 18 s, until the next reconnect's keep-alive (2/2 runs).
• CI. The red Test (ubuntu-latest, Node 22.x) (2 tests in acp-integration/session/Session.test.ts) is inherited from main, not caused by this PR (see notes).

What ran

• Trees. A local trial merge of 2061be72 into main ac497aee merged cleanly. Its diff against main is the PR's 13 files; the executor diff against main is empty.
• Rebuilt from that merge: the Spring jar and the packaged CLI, Harness and worker.
• Arms, all watching the same Session at the same time:
  • main;
  • the previous head (same tree with use-managed-session.ts from 1780afcd, i.e. without the keep-alive commit);
  • the head;
  • the head plus the candidate.
• Static checks on the trial merge. cli plan suites 935/935, web-shell managed 402/402; tsc for cli and web-shell, eslint and prettier all clean.

1. Real stack

The keep-alive commit, before vs after. Same tree, only the hook differs:

• Before (1780afcd's hook): (c), (c′) and (e) all wait for the next event, at 40–70 s.
• After (the head): (c) clears at 21.1 s, (c′) at 20.8 s, and (e) at 50.7 s, with no gap during the hole.

Against main. Main now clears a stream failure on (re-)establishment (#13342's onEstablished). This server establishes the response on its first keep-alive, so main and the PR now clear at the same moments: (c), (c′), (e), the outage and the 401 case. (a), (b) and (d) are equivalent too.

What the PR still adds over main:

It also keeps the merge fast path, and the deleted-Session line stays up.

2. (g) A keep-alive-expired verdict is resurrected when the healthy connection later drops

Setup. One reconnect was answered 404. The next connection was healthy, and its keep-alive cleared the line at about 21 s. At 40 s that connection was dropped abruptly. To get a real network error into the browser, the page talked to the recording proxy directly, because vite's dev proxy turns an upstream drop into a hang.

Result, 2/2 runs:

• main and the candidate: a transient "network error" from 40.5 to 58.5 s, then cleared.
• the head: the 37-second-old 404 restored as a terminal stop over the same window.

Cause.

• The proof-of-life timer captures the standing terminal verdict (expiredVerdictMessage) for R11-1's restore.
• The keep-alive path lands the expiry but leaves that capture armed; only a genuinely new frame clears it.
• So when the keep-alive-certified connection fails later, the catch runs stop('stream', expiredVerdictMessage). The real network error is then recorded as transient, and the monotonicity guard keeps the restored terminal verdict standing.

Who sees it. Any panel whose stream once got a definite answer and whose next long-lived connection then ends by error: a server deploy, a load-balancer drain or a client network change.

Candidate — candidate-no-resurrect.patch; applies cleanly to 2061be72.

• Change. When a keep-alive lands the expiry, also drop the capture (expiredVerdictMessage = undefined). That is one statement, plus a comment. R11-1's slow-failing attempt never sends a keep-alive, so its restore still works.
• Unit witness. A 404, then a keep-alive at 8 s, then a network error at 68 s. On the head, stoppedReason comes back as 'session gone'; with the candidate it stays undefined and error is 'network error'.
• Tests. The managed suite passes 403/403 (402 + 1), including the R11-1 restore specs.

3. Notes

• The fix(web-shell): managed session UI correctness from the #12692 R2 review #13342 merge. Autofix round 3 kept the PR's per-leg hook and dropped three of fix(web-shell): managed session UI correctness from the #12692 R2 review #13342's hook specs; they are listed in test-weakening.json together with the coverage that replaces them. On the real stack, main and the merged head behave the same in every recovery shape above.

  • Left over: fix(web-shell): managed session UI correctness from the #12692 R2 review #13342's onEstablished plumbing (the streamEvents(…, onOpen, …) parameter, the provider pass-through, and the interface doc) has no caller in the merged tree, because the hook only uses onAlive. Either remove it or wire it.

• CI Test (ubuntu-latest). The two failures are routes tool_call through a hidden deferred tool in ACP: build error and accounts for delegated work when a tool_call tool result returns (validation_error), both on the bridged-validation message. The sequence:

  • fix(core): keep nested tool_call arguments open on Responses; name the target in bridged validation errors #12901 changed that message on main at 14:10.
  • The test expectations were only updated by feat(hosted): show captured inputs in native approval cards #13407 at 16:53.
  • This run (16:25) built 2061be72, whose main parent is from 16:22.

  Both tests pass locally on main ac497aee and on the trial merge. Another merge of main, or a re-run after update-branch, should clear it.

• PR body. Still not updated: it still describes a "hard stop" on a definite 4xx, and still lists item 1 as a code change.

• Inconclusive run, kept for the record. My first attempt at (g) used Playwright's offline mode, and Chromium does not break an established stream that way. That run is kept in results/ under a name that says so.

Evidence — wenshao assets-pr13179 @ 4e4cb558, under pr13179/r6/:

• the figures and candidate-no-resurrect.patch;
• results/: every (a)/(b)/(c)/(c′)/(d)/(e)/(g) / outage / 401 / deleted / unknown console, and the static-check, candidate-suite and duplicate-id logs (0 duplicates in 348 reads);
• harness/: u8-restore.mjs, plus the direct-to-proxy mode (CORS and abrupt drop).

CI attribution for the Test (ubuntu-latest, Node 22.x) failure on this PR (run 37495525515), verified byte-by-byte against the checkout the lane compiled.

Root cause: the lane compiled a stale merge ref whose upstream-main half was internally inconsistent on packages/cli/src/acp-integration/session/; the PR side touches none of the involved files.

• The failing pair — Session > accounts for delegated work when a tool_call tool result returns (validation_error) and routes tool_call through a hidden deferred tool in ACP: build error — compares a refusal string produced by Session.ts with literals in Session.test.ts. The merge ref's parent main was 07e905aa4b, whose Session.ts was already wired to describeBridgedArgumentError (the fix(core): keep nested tool_call arguments open on Responses; name the target in bridged validation errors #12901 "rejected the arguments …" wrapped form) while the same revision's test file still expected the pre-fix(core): keep nested tool_call arguments open on Responses; name the target in bridged validation errors #12901 shapes at exactly two spots (${PREFIX}invalid delegation arguments, and the un-prefixed Deferred tool … rejected the arguments …). Producer and expectation from the same upstream revision did not match, so both assertions red on any tree containing that pair — independent of this branch.
• Every involved file is untouched by this branch (git diff <merge-base>...HEAD --name-only over packages/cli/src/acp-integration/** and packages/core/src/tools/tool-call.ts is empty; #12901's producer change arrived entirely from upstream after this branch's base).
• Current origin/main (ac497aeed9) is consistent at both spots (producer wired at 2 call sites, both expectations in the wrapped form), so the failure shape is not constructible on a merge ref computed against it.

Action taken: the branch now merges current upstream (264823fcbc), which is exactly the exception case for updating a running PR's base — main moved the precise failing path. On the thrice-merged tree, both previously failing specs were run explicitly and are green (validation_error 1 passed; build error 1 passed), the web-shell managed suite is 402/402 across 15 files, the cli managed suites are 227/227, and the full build + repo typecheck are clean. This comment carries the evidence; the lane should go green on the rerun the push triggers.

🤖 Addressed the latest review feedback (round 5/100). What changed, and what I pushed back on: · 已处理最新评审反馈（第 5/100 轮）。改动内容与我反驳保留之处如下：

Autofix round — PR #13179

Commit d8cf0a0aca — fix(web-shell): never resurrect a heartbeat-expired stream verdict (#13179).
8 of 21 posted findings resolved (the Critical, 3 more behavior fixes, 4 coverage pins); the remaining 13 Suggestions are deferred to the next round per the ~8-findings batch cap, each with a recorded reason as a thread reply.

Resolved in code

• [Critical] R1-1 (use-managed-session.ts, rc:4202164933) — a keep-alive-expired stream verdict was resurrected when the certified connection later dropped. onAlive now disarms the attempt's verdict capture (expiredVerdictMessage = undefined) before the proof-of-life check, and the proof-of-life timer no longer arms the capture for a heartbeat-certified attempt (if (!alive)), which also closes the pre-point heartbeat variant. The restore itself stays: a replay-only attempt (old data, not proof of life) still restores the verdict when it fails past the proof-of-life point, and that branch is now pinned. This is the shape the maintainer's round-6 real-stack verification endorsed (candidate-no-resurrect.patch), extended to the pre-point shape. Witness: new spec does not restore a keep-alive-expired verdict when the certified connection later drops (404 → keep-alive at t=7s → TypeError('network error') at t=68s; asserts stoppedReason undefined, error = 'network error') — red on the pre-round head, green now.
• R1-18 (rc:4202164960) — a heartbeat no longer resets the stream reconnect ladder. onAlive now marks a separate alive flag (drives the proof-of-life expiry) instead of delivered (drives failures = 0), so a stream that heartbeats and then drops inside 3 s climbs the ladder (0, 4000, 10999, …) instead of retrying at the 3 s floor forever. Rung zero stays exactly BASE_RETRY_DELAY_MS. Witness: new spec keeps climbing the reconnect ladder when heartbeat-only attempts keep failing fast — red when delivered = true is restored to onAlive.
• R1-6 (ManagedSessionsPage.tsx, rc:4202164948) — the page no longer collapses the hook's stoppedReason/error channels with ||; they render as sibling alerts, so a failed 'Older history' click is shown beside a standing terminal verdict instead of being swallowed. Witness: new page spec shows a failed older-page fetch alongside a sticky terminal stop — red when the channels are collapsed.
• R1-17 (ManagedSessionsPage.tsx, rc:4202164952) — exact-repeat suppression across the three alert slots (error !== detail.stoppedReason && error !== detail.error), so one server condition is announced once while genuinely different messages keep their own slots (['Not found', 'Turn already active'] still passes). Witness: new page spec renders one alert when the action error repeats the standing verdict — red when the comparison is removed.

Resolved as coverage pins (behavior confirmed correct, now witnessed)

• R1-12 (rc:4202165052) — the catch-side verdict restore is pinned via the replay door: new spec restores a terminal stream verdict when a replay-only reconnect fails past the proof-of-life point goes red if the restore branch is disabled.
• R1-28 (rc:4202164971) — retires a definite stream verdict once the stream delivers again was retimed so the new frame lands after the attempt's proof-of-life point, then the attempt throws; goes red if the new-frame disarm (expiredVerdictMessage = undefined on a genuinely new frame) is removed.
• R1-21 (rc:4202164966) — the same retimed test now continues with a later attempt that parks past its own proof-of-life point and fails; goes red when the three streamVerdictMessageRef mirror resets are deleted together.
• R1-20 (rc:4202164975) — new spec expires a terminal stream verdict at the proof-of-life point when a keep-alive lands before it: a pre-point heartbeat does not expire early (pins the proofOfLifePassed gate), the timer lands the expiry (pins the heartbeat arm), and a later drop of the certified connection does not resurrect the verdict.

Deferred to the next round (batch cap ~8) — reason recorded on each thread

R1-4 (dead SnapshotLegError.code — should land with the R1-30 403-scope decision), R1-7 (poll failure clears bootstrap loading), R1-8 (paging failure masks a hung stream — needs the displayedLeg tie-break), R1-9 (transient failure evicts an armed stall), R1-10 (re-arm cooldown / no-wipe), R1-11 (inline rule → failed() — lands with R1-13), R1-13 (isAuthFailure pins — behind the R1-30 question), R1-14 (loadOlder clear-scope pin), R1-24 (both-reject drops the transcript answer), R1-25 (fulfilled session read never retires its leg — interacts with R1-10), R1-26 (signals type doc contradicts the new-frame path — a doc-vs-code decision tied to R1-24/25), R1-27 (snapshotFailures never decays), R1-31 (expireFinal → expireAnswered on a non-advancing resync).

Issue-level items

• The round-6 real-stack verification's item (g) is R1-1 — fixed here in the endorsed shape, with the pre-point variant closed as well.
• The noted onEstablished plumbing with no production caller (left over from the fix(web-shell): managed session UI correctness from the #12692 R2 review #13342 merge) is deferred to the next round: it spans the provider interface, the pass-through, and the client, and removing it should not ride along with the verdict fix.
• The stale PR body/title is the workflow's to refresh; not something this round can edit.
• The Test (ubuntu-latest) failure attribution comment is informational — already resolved by the main merge at 264823fcbc; the serve A/B activeWorkStaleMs 5→4 delta and the web-shell visuals note (no scenario reaches this UI) need no code change this round.

Mutation probes (guard deleted → focused test fails → restored → green)

1. expiredVerdictMessage = undefined removed from onAlive → keep-alive-drop spec fails. Restored, green.
2. if (!alive) guard removed from the proof-of-life timer → pre-point keep-alive spec fails. Restored, green.
3. Timer expiry reverted to if (delivered) → pre-point keep-alive spec fails at the expiry beat. Restored, green.
4. delivered = true restored to onAlive → heartbeat-only ladder spec fails (opens stay at the 3 s floor). Restored, green.
5. New-frame disarm removed → retimed retire spec fails. Restored, green.
6. All three streamVerdictMessageRef resets deleted → retimed retire spec fails at the later-attempt beat. Restored, green.
7. Catch-side restore disabled (if (false)) → replay-door restore spec fails. Restored, green.
8. if (proofOfLifePassed) gate removed from onAlive → pre-point keep-alive spec fails at the early-expiry beat. Restored, green.
9. Page alert channels collapsed back to || → failed-older-page-fetch spec fails. Restored, green.
10. Page duplicate suppression removed → single-alert spec fails. Restored, green.

Verification

• vitest run client/components/managed (packages/web-shell) — 15 files, 408/408 passed (402 pre-existing + 6 new), including the two near-miss keep-alive specs and the R11-1 restore spec
• npm run build — passed (with COREPACK_HOME=/tmp/corepack-cache; the runner's HOME is not writable for corepack's cache)
• npm run typecheck — passed
• npm run lint — passed (one require-yield error in a new test found and fixed with the file's yield* [] pattern, then re-run green)
• npx prettier --check on the four touched files — passed
• Focused vitest re-runs for each mutation probe above — failed as expected under the mutation, green after restore
• Not run: integration tests / npm run bundle — the touched behavior (hook + page rendering) is fully exercised by the vitest suites; no bundled-CLI-only path is involved

Base-conflict check · 基分支冲突检查: no conflict with main. · 与 main 无冲突。

🧵 Resolved all 8 selected review thread(s). · 已关闭全部选中的 8 条评审线程。

Re-review when you have a moment. After round 100 this bot stops and leaves the PR for a human. · 有空请复审；第 100 轮后本 bot 停止并将 PR 交给人工。

🧠 Handled by Qwen Code · model/模型 kimi-k3 · CLI 0.25.0

🤖 Addressed the latest review feedback (round 6/100). What changed, and what I pushed back on: · 已处理最新评审反馈（第 6/100 轮）。改动内容与我反驳保留之处如下：

Address-review round — PR #13179

Committed as 99dea2d678 fix(web-shell): tighten the signal-leg ledger and alert de-duplication (#13179) — 4 files, +468/−24. Nine of the eleven actionable inline findings are resolved in code; two are deferred to the next round under the per-round batch bound (replies posted on their threads, threads left open).

Addressed

1. R2-1 (rc:4204452346) — proof-of-life capture armed on the no-expiry branch. Fixed as suggested: the timer now returns early when the attempt answered nothing (if (!delivered && !alive) return;), so the catch can no longer re-stamp a verdict that was never removed with a fresh seq. The expiry gate itself is unchanged — the replay-armed path (delivered === true, alive === false) still captures and expires, pinned by the pre-existing restores a terminal stream verdict when a replay-only reconnect fails past the proof-of-life point. New witness: does not re-stamp a standing verdict when a silent reconnect fails past the proof-of-life point (attempt 1 books a terminal 404, a loadOlder() click then fails, attempt 2 parks silent past +3 s and throws — the paging record keeps the field). Probe: negating the guard turns it red with the exact reported defect (expected undefined to be 'page failed').

2. R2-2 (rc:4204452356) — no release for a transient stream record on an established-but-silent reconnect. Re-added an establishment signal that expires only transient stream records: onEstablished: () => expireTransient('stream'), where expireTransient deletes the leg's slot only when !entry.final && !entry.stall. No interface change — the plumbing was already declared, forwarded, and invoked. Three witnesses: expires a transient stream failure once the reconnect establishes and idles (cleared at establishment, still clear past the proof-of-life point), keeps a terminal stream verdict standing when the reconnect establishes and idles, and keeps the stall alert standing when a reconnect establishes and idles. Probes: removing the handler reds the first; widening the release to final reds the second; dropping the stall exemption reds the third.

3. R2-3 (rc:4204452369) — two alert de-duplication guards untested. Added renders one alert when the failed older-page fetch repeats the standing verdict (poll 404 verdict + paged fetch rejected with the same 404 message) and renders one alert when the action error repeats the standing stream failure (stream leg 502 + Send rejected with the same message). Both went red under the exact mutations named in the finding (deleting each !== term from the positional form), and both red again if the Set de-dup is removed from the keyed list that R1-17 introduced.

4. R2-4 (rc:4204452376) — per-attempt scope of alive unpinned. Added keeps a heartbeat-certified attempt's failure standing through a silent reconnect: attempt 2 heartbeats past the proof-of-life point and then drops (booking network error), attempt 3 stays silent — the record attempt 2 left still stands past attempt 3's +3 s point. Probe: hoisting let alive = false; above the while turns it red (expected undefined to be 'network error').

5. R1-17 (rc:4204452388) — render-time de-dup re-mounts the suppressed alert. Collapsed the three positional siblings into one keyed list over the distinct messages (insertion order preserves stoppedReason → detail.error → error). Extended renders one alert when the action error repeats the standing verdict with the recovery beat: after the duplicate Send, advancing past the poller's rung-1 delay retires the session leg, and the standing alert keeps its DOM node (toBe(alertBefore)) with texts still ['Not found']. Probe: reverting to positional siblings turns the identity assertion red; the ordered ['Not found', 'Turn already active'] assertion and the :1852 single-alert assertion stay green.

6. R1-9 (rc:4204452765) — a transient stream failure evicts a standing stall. Extended record()'s guard: if (previous?.stall && !final && !(error instanceof StreamStallError)) return current; — a stall now leaves only through a terminal verdict, its own re-assertion, or an advancing stream, matching the class doc. The two beats in disarms the stall alert once the stream advances again that pinned the old displacement (toBe('Failed to fetch') / toBeUndefined()) now assert /not advancing/ — same assertion count, no test deleted or disabled; the change is the finding's acceptance criterion (the old values pinned the defect). Probe: removing the guard reds that test with exactly the reported blast radius (expected 'Failed to fetch' to match /not advancing/, 1 test).

7. R1-25 + R1-24 (rc:4204453187, rc:4204453423) — fulfilled session read discarded by the resync's transcript-leg throw. Fixed in one pass as suggested: retire('session') immediately before throw new SnapshotLegError('transcript', …), symmetric with the mirror branch. The endedRef re-arm constraint is satisfied: snapshot() runs only from the bootstrap loop and the gap branch, and endedRef is set solely on the bootstrap's terminal path, which returns immediately — so the added retire is unreachable with the flag set. New witness: retires a standing session-leg verdict when a gap resync reads the session successfully (poll books a terminal 404, gap resync fulfils getSession and rejects getTranscript; the verdict leaves with the resync, a full poll rung before the poller could retire it). Red without the retire (expected 'session gone' to be undefined). Note on R1-24's stated mechanism: the session leg is not booked as failed today — both callers already classify by SnapshotLegError.leg (traced at head; the witness's assertions confirm no session-leg failure is booked). What was missing is the fulfilled read's retirement, which this fix adds — the exact change R1-24 asked for ("retire or record the session leg from sessionRead before throwing").

8. R1-8 (rc:4204452977) — reveal rule between two concurrent live conditions unpinned. Pinned the rule the PR's ledger model implements: between live records the newest booking wins (documented at the pick). The witness is reinstated in the deleted test's shape by extending reveals a still-live paging failure again once a poll blip clears with a dropped-then-silent stream leg: the stream record never outranks the newer paging record, the poll blip displaces and then re-reveals it. Probe: a stream-over-transcript reordering of the pick — the exact mutant the finding showed was uncaught — now goes red (expected 'Failed to fetch' to be 'Managed Agent request failed (410)'); the pre-existing :4869 blip assertion stays green.

Deferred to the next round (batch bound — 9 findings landed)

• R1-10 (rc:4204453702) — re-arm wipes paged history. The restart is intended and pinned; the fix is about what the revision bump preserves, and the finding itself notes the interplay with the still-open low-confidence cross-generation endedRef observation — the two should be resolved together.
• R1-31 (rc:4204453963) — replay guard conflates exact duplicate with strictly older frame. The repo's own contract tests model an overlapping/disordered tail as an identical replay, so distinguishing needs a decided handling for the out-of-order case (or a deliberate documentation-only resolution) — not a tail-of-batch call.

Notes

• Test-surface change disclosure: two assertion values changed in disarms the stall alert once the stream advances again (see item 6) — no test file deleted, no assertion statement removed, nothing skipped or disabled; the old values pinned the reported defect, and the finding names these beats as the ones that must change.
• Environment: the runner checkout had no built workspace dists (@qwen-code/sdk, @qwen-code/acp-bridge, @qwen-code/channel-*, @qwen-code/web-templates, @qwen-code/audio-capture), so root npm run typecheck failed identically on pristine HEAD (2324 error lines, verified via stash) — pre-existing, unrelated to this diff. Building those workspaces (all exit 0) made the full root typecheck clean.
• Diff growth: this round adds ~39 source and ~430 test lines net; every added test is a finding-demanded witness with a recorded mutation probe. The window's test budget will read over budget after this round — flagged here so the next round's audit has the reason up front.

Verification

• npm run build — passed (exit 0); plus per-workspace builds @qwen-code/sdk, @qwen-code/acp-bridge, @qwen-code/channel-* (12), @qwen-code/web-shell, @qwen-code/web-templates, @qwen-code/audio-capture — all exit 0.
• npm run typecheck (root, all workspaces + integration) — passed (exit 0, 0 errors).
• npm run lint (root ESLint, both passes) — passed (exit 0).
• npx vitest run client/components/managed/ (packages/web-shell) — 15 files, 416 passed (includes 106 hook + 59 page tests).
• npx vitest run (full packages/web-shell suite) — exit 0.
• Mutation probes (mutant → focused test result → restored): R2-1 guard negated → red (expected undefined to be 'page failed'); onEstablished removed → red; expireTransient widened to final → red; stall exemption dropped → red; alive hoisted → red (expected undefined to be 'network error'); stall guard removed → red (expected 'Failed to fetch' to match /not advancing/); resync retire('session') removed → red (expected 'session gone' to be undefined); positional alert siblings restored → node-identity assertion red; each positional !== term deleted → respective new test red; keyed-list Set de-dup removed → all three de-dup tests red; stream-over-transcript pick → red (expected 'Failed to fetch' to be 'Managed Agent request failed (410)'). All restored and re-verified green.
• Integration tests (npm run bundle + integration harness) — not applicable: the changed behavior is exercised through the web-shell jsdom suites, not the bundled CLI.

Deferred non-Critical feedback

Critical-only mode is active: 5 change-producing rounds are complete. The workflow excluded the non-Critical feedback below from this round's actionable sections; the items remain open for human follow-up. Maintainer feedback is deferred only after its author has used 2 regular feedback batches in this window's Critical-only tail; authors at that budget, if any, are named below. (@qwen-code /retry starts a fresh counting window.)

Base-conflict check · 基分支冲突检查: no conflict with main. · 与 main 无冲突。

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🧠 Handled by Qwen Code · model/模型 kimi-k3 · CLI 0.25.0

🤖 Addressed the latest review feedback (round 7/100). What changed, and what I pushed back on: · 已处理最新评审反馈（第 7/100 轮）。改动内容与我反驳保留之处如下：

Autofix round summary — PR #13179

Growth audit (required this window)

Verdict: sound (growth-audit.json in the workdir). KISS probe: I assumed the ledger is over-engineered and tried to prove it — the demonstrably simpler shape is the pre-PR single error field with a writer map, and that is exactly what produced the round-1/2 finding cluster this ledger resolves; every accumulated piece (per-leg slots, final monotonicity, stall flag, seq/newest, the four expiry strengths, the verdict mirror, the endedRef re-arm, SnapshotLegError, onAlive plumbing, isAuthFailure, the merge fast path) is load-bearing for a named finding or failure mode. Minimal-change probe: every changed file traces to the PR's original problem or an accepted finding (traced via git history), with one dead operand found and removed this round (SnapshotLegError.code). The window overage is test-side witness accretion the review itself demands; this round is net +222/−18 with the source side nearly flat after the subtractions.

Actionable feedback

1. [Critical] R3-1 — a frame landing past the proof-of-life point never lands the stream-leg expiry ([rc:4208617735]): Fixed. The frame path now mirrors the heartbeat path: after delivered = true, when the point has passed, the attempt lands the held expiry (expireAnswered('stream')) and disarms the restore capture — a replay counts, and the replay guard no longer swallows it. A stall record is never cleared (expireAnswered refuses entry.stall), and an expiry landed here is never restored by that connection's later drop, matching the onAlive precedent. Witness: new spec expires a terminal stream verdict when a replayed frame lands past the proof-of-life point. Mutation probe: with the added guard removed, the spec fails (expected 'session gone' to be undefined); restored, green.
2. [Suggestion] R3-2 — the stream-leg record in reveals a still-live paging failure again once a poll blip clears was never observed ([rc:4208617754]): Fixed. The spec gains a closing phase: the dead cursor recovers (pagingDown = false), a successful loadOlder() retires the transcript record, and the final assertion reads the still-booked stream record (error === 'Failed to fetch'). Existing assertions unchanged; the stub's reconnect still never calls onEstablished. Mutation probes: (a) adding request.onEstablished?.() to the stub's reconnect reddens the new assertion (expected undefined to be 'Failed to fetch'); (b) replacing newest with standing's specificity ordering reddens the spec. Both restore to green.
3. [Suggestion] R3-3 — the stall re-assertion operand is unpinned ([rc:4208617768]): Declined as stated; the operand is removed instead. I wrote the suggested discriminating spec as a probe: it is green both with and without !(error instanceof StreamStallError). Trace: every stall re-assertion runs only after the same gap pass's snapshot(true) succeeded, and that success retires the session and transcript legs before the re-assertion executes — so no competing record can be live when the re-stamp would land, and while resyncs keep failing the re-assertion never runs at all. The operand defends a race that cannot happen; removing it leaves the managed suites at 419/419. The full evidence is posted on the thread, which stays open in case a reachable counterexample exists.
4. [Suggestion] R1-17 — the node-identity assertion could not distinguish a message key from an index key ([rc:4208617776]): Fixed. shows a fresh action error alongside a sticky terminal stop now covers the 2→1 transition: after the alerts pair is captured, the second node is held, one poll rung retires the session leg, and the spec asserts the surviving alert is ['Turn already active'] and that its node is the captured one. Mutation probe: key={message} → key={index} reddens the identity assertion (node 0 is reused and its text rewritten, so the captured node is detached); restored, green.
5. [Suggestion] R1-24 — when both snapshot reads reject, the transcript leg's definite answer was dropped ([rc:4208617787]): Fixed. The both-reject branch now records the transcript leg's own answer (failed(transcriptRead.reason, 'transcript')) before throwing the session error — but only when the session leg is transient and the bootstrap will retry; a terminal session answer keeps owning the display, so gives the session leg the bootstrap decision regardless of settle order holds unchanged, and only the session branch may end the bootstrap. Witness: new spec records a definite transcript answer when both bootstrap reads reject and the session blip is transient (standing history pruned/transcript beside the session transient, bootstrap keeps retrying). Mutation probe: with the booking removed the spec fails (expected undefined to be 'history pruned'); restored, green.
6. [Suggestion] R1-10 — the endedRef re-arm had no cooldown or bound and reset both ladders ([rc:4208618393]): Fixed. A per-session budget (MAX_SESSION_REARMS = 3, rearmRef/rearmSessionRef) bounds the re-arm; the budget resets when a bootstrap actually completes and when the session changes, and past the bound the ended loops stay ended — the poll keeps the summary live and reload() is the way back. Rung zero is untouched. Witness: new spec bounds the session-leg re-arm count when the backend alternates definite and success — the alternating 404/success backend spends exactly 4 transcript reads over 30 s. Mutation probe: with the bound removed the spec fails (expected "spy" to be called 4 times, but got 11 times); restored, green.

Standing findings also resolved in this round

• R1-4 ([rc:4202164980]) — SnapshotLegError.code was written and never read: removed (verified by grep — no read site anywhere).
• R1-11 ([rc:4202165030]) — the bootstrap catch hand-inlined failed()'s terminality predicate: the transcript branch now calls failed(error, 'transcript'), and the predicate is shared via the extracted isTerminalAnswer (also used by the R1-24 gate).
• R1-26 ([rc:4202165039]) — the signals doc stated an authority rule the new-frame path contradicts: the doc now states the cross-leg exception the frame path implements.

Files changed

• packages/web-shell/client/components/managed/use-managed-session.ts — the R3-1 frame-path expiry, the R1-24 both-reject booking, the R1-10 re-arm bound, the R3-3 operand removal, the R1-4 dead-field removal, the R1-11 predicate dedup, the R1-26 doc correction.
• packages/web-shell/client/components/managed/use-managed-session.test.tsx — three new specs (R3-1, R1-24, R1-10) and the R3-2 observing phase.
• packages/web-shell/client/components/managed/ManagedSessionsPage.test.tsx — the R1-17 discriminating identity assertions.

No base-conflict resolution was needed (--conflict false). Integration tests were not run: the touched behavior (the web-shell session hook and the sessions page alert list) is not exercised through the bundled CLI or the integration harness; the managed Vitest suites are the focused coverage.

Verification

• npm run build — passed (exit 0). Note: this environment's corepack cache is read-only, so the build was run with COREPACK_HOME=/tmp/corepack; the first attempt without it failed with EACCES: permission denied, mkdir '.../.cache/node/corepack/v1', an environment limitation, not a code issue.
• npm run typecheck — passed (exit 0, 0 errors; same COREPACK_HOME override after building the workspace prerequisites the sandbox lacked).
• npm run lint — passed (exit 0).
• npx vitest run client/components/managed (packages/web-shell) — 15 files, 419 passed (includes the pre-existing managed-agent client/provider/messages suites).
• Mutation probes (each applied, run, then restored and re-run green): R3-1 guard removed → new spec red; R1-24 booking removed → new spec red; R1-10 bound removed → new spec red (11 vs 4 transcript reads); R3-2 (a) stub onEstablished → spec red, (b) newest→specificity ordering → spec red; R1-17 key={index} → identity assertion red; R3-3 operand removed → probe and full suite green both ways (the decline evidence).

Deferred non-Critical feedback

Critical-only mode is active: 5 change-producing rounds are complete and the PR's diff grew src 47 / test 735 net lines beyond this counting window's baseline (budgets: 400/400). The workflow excluded the non-Critical feedback below from this round's actionable sections; the items remain open for human follow-up. Maintainer feedback is deferred only after its author has used 2 regular feedback batches in this window's Critical-only tail; authors at that budget, if any, are named below. (@qwen-code /retry starts a fresh counting window.)

Base-conflict check · 基分支冲突检查: no conflict with main. · 与 main 无冲突。

🧵 Resolved all 8 selected review thread(s). · 已关闭全部选中的 8 条评审线程。

Re-review when you have a moment. After round 100 this bot stops and leaves the PR for a human. · 有空请复审；第 100 轮后本 bot 停止并将 PR 交给人工。

🧠 Handled by Qwen Code · model/模型 kimi-k3 · CLI 0.25.0

🤖 Addressed the latest review feedback (round 1/100). What changed, and what I pushed back on: · 已处理最新评审反馈（第 1/100 轮）。改动内容与我反驳保留之处如下：

Round summary — review round 4 (head 79d77b2)

This round addresses review round 4 (c25755dbc8): both Criticals and both Suggestions it posted, the three standing deferral-record items it re-confirmed (N2, N3, N11), and the matched items it re-derived on the R3-1 thread. One round-3 claim was refuted by a probe and is answered with evidence on its thread. One standing deferral (N4) is declined with evidence below.

Findings

• [Critical] R1-10 fix-induced (comment 4212995670) — fixed. retire() deleted the standing terminal verdict before checking the re-arm budget: once the budget was spent, the poll's next success deleted the verdict, refused the remount, and cleared endedRef, leaving a healthy-looking empty panel with no alert and no path back. Now, past the bound (endedRef set and rearmRef >= MAX_SESSION_REARMS), the session-leg retire skips the delete and keeps endedRef set, so the standing verdict survives every later poll success and reload() remains the way back. The bound's refusal is unchanged (getTranscript stays at 4, subscribeEvents is never called). The bound spec now also reads the rendered state — at t=12000, where the budget has just been spent, it asserts stoppedReason === 'session gone' (this also closes N11, the "spec never reads latest" gap on the same spec).
• [Critical] R4-1 (comment 4212995679) — fixed. The bootstrap catch's endedRef.current = true was the one cross-run shared-ref write not guarded by abort.signal.aborted; record() is internally guarded, but failed() still returns true on a superseded run, so a stale definite session answer could arm the live run's re-arm path and tear its effect down on the next poll success. The write is now guarded. New witness in the ignores a superseded run family: a parked session-1 bootstrap whose reads settle (definite 404) only after the switch to a healthy session-2 — the successor's transcript reads stay at 2 and its loaded events stay put, instead of the stale re-arm re-spending a third bootstrap read.
• [Suggestion] R4-2 (comment 4212995685) — fixed. record() now no-ops a final write over a standing final with the identical message, so a repeat terminal answer (e.g. the poll's every-rung 404) can no longer re-stamp its record with a fresh seq and suppress a newer live record on another leg. Not extended to non-final writes. New spec: a session-leg 404 at t=3000, a stream 502 at t=3500, then the identical 404 again at the poll's next rung (t=8999) — the stream's transient keeps the transient field (error === 'Bad gateway') while stoppedReason stays 'session gone'; removing the guard re-stamps and blanks error.
• [Suggestion] R4-3 (comment 4212995711) — fixed. The both-reads-reject spec's "bootstrap keeps retrying" claim now counts getTranscript (the bootstrap's own read) instead of getSession, which the poll loop also calls — under the mutant the spec was written against, the getSession count passed via the poll. Same beat, same window; the replacement is strictly stronger.
• R3-1 thread (comment 4208617735) — the round-4 matched items are fixed. The stale proof-of-life comment now names the late-frame disarm alongside the heartbeat's. The disarm rules are now witnessed on both sides: a replay inside the window arms the capture at the proof-of-life point, then a heartbeat (does not restore an armed verdict once a heartbeat certifies the connection) or a replay past the point (does not restore an armed verdict once a late replay lands the expiry) disarms it, and the connection's later drop restores nothing. A replay before the point with no later answer still restores (the existing restores a terminal stream verdict when a replay-only reconnect fails… spec is untouched and green), and replays still count as delivery for the reconnect ladder, as the maintainer confirmed earlier in this thread's history.
• R3-3 fixed ruling (comment 4212995966) — verified, no code change. record() carries no stall-operand; the guards are the monotonicity guard, the new identical-final guard, and the stall guard. Re-verified against the current tree.
• N2 (round-3 deferral, onAlive disarm unwitnessed) — fixed. The heartbeat-certifies-then-drop spec above reds when the expiredVerdictMessage reset in onAlive is deleted (probe B4 below).
• N3 (round-3 deferral, clearing assertions could not distinguish retire from escalate) — fixed. Both stall-clearing beats of disarms the stall alert once the stream advances again now also assert stoppedReason === undefined — an escalated (final) stall record would surface there while leaving error undefined (probe B6 below).
• N4 (round-2 deferral, stoppedLeg has no production read site) — declined with evidence. Confirmed: 1 write site in the hook, ~54 reads, all in tests, none in the page. Removing the export means deleting exactly the assertions that pin leg attribution and authority precedence — the witnesses the R7–R10 Critical fixes stand on (stoppedLeg is the only observable surface of which authority issued the standing verdict); that is a coverage loss, not a simplification. Wiring it into the page's render (different copy per leg) is a UI/product call no reviewer has specified. Recorded here for a maintainer who wants it gone or wired; the thread was the round-2 deferral record, so there is no inline thread to answer.
• Round-1 R1-1 (comment 4202164933) — fixed earlier (d8cf0a0aca), re-verified: the no-resurrect family plus this round's two new disarm witnesses are green, and probe B4/B6 mutants red them. Resolved.
• Round-3 R1-10 bound request (comment 4208618393) — the bound landed in c25755dbc8 and this round's fix closes the exhausted-budget hole its witness missed. Resolved.
• Round-3 R1-24 narrowed (comment 4208617787) — the both-reject recording landed in c25755dbc8; its spec is the one R4-3 hardened this round. Resolved.

Declined after probing (answered on its thread, left open)

• Comment 4208617776 (R1-17 node-identity) — the claim was that the keyed-alerts spec's node-identity assertion cannot distinguish a message key from an index key. Probe: switched the alert list to key={index} in ManagedSessionsPage.tsx and re-ran shows a fresh action error alongside a sticky terminal stop — it goes red at exactly that assertion (with index keys the surviving alert's node is unmounted and index 0's node is repurposed, so toBe(actionAlert) fails). The spec already pins message keying; no change made.

Not in this round (recorded, not silently dropped)

• Round 4's own deferred item (use-managed-session.test.tsx:4530, the 50 ms settle sleep) stays deferred — the reviewer marked it "not requested in this round" and it is a test-isolation question, not a defect.
• PR body/title staleness (issue comments 6018332618, 6022424066): the "hard stop" sentence and the test counts describe older heads. Updating the PR body is a GitHub write, which this round cannot perform — flagging for the workflow/maintainer.
• The red Test (ubuntu-latest, Node 22.x) lane was attributed in comment 6024725225 as inherited from main (stale merge ref on packages/cli/src/acp-integration/); this branch already carries the merge of current main (264823fcbc) and the failing specs pass on this tree.

Mutation probes (each guard's witness)

Each probe mutated exactly one line of use-managed-session.ts, ran the hook suite, and restored the file; the restored tree is 113/113 green.

Verification

• npx vitest run client/components/managed/use-managed-session.test.tsx (packages/web-shell) — 113 passed, 0 failed (109 baseline + 4 new specs)
• npx vitest run client/components/managed (packages/web-shell) — 15 files, 423 passed, 0 failed
• npm run build — passed
• npm run typecheck — passed
• npm run lint — passed
• npx eslint --max-warnings 0 on both touched files — passed (the pre-commit hook caught one require-yield in the new R4-2 spec's park-only generator; fixed with the house yield* [] pattern and re-verified)
• npx prettier --check on both touched files — passed
• Pre-round and mutation probes — table above; every new guard is red-witnessed
• Integration tests — not run: the touched behavior is the web-shell hook's failure lifecycle, fully exercised by the unit suite; nothing here is only reachable through the bundled CLI or the integration harness
• npm run generate:settings-schema — not applicable: no settings source changed