fix(core): propagate filesystem cleanup failures in team_delete

[yiliang114]

Summary

deleteTeamDirs() in packages/core/src/agents/team/teamHelpers.ts used Promise.allSettled() to run two fs.rm calls but never inspected the results. The team_delete tool could report complete success even when filesystem cleanup failed with non-ENOENT errors (EACCES, EIO, etc.), leaving orphaned team directories on disk.

Root cause

Promise.allSettled() resolves regardless of individual promise rejections. The returned PromiseSettledResult[] was discarded, so rejected fs.rm promises were silently swallowed.

Fix

Capture the allSettled results and iterate them. For each rejected result:

• If the error is ENOENT, continue (idempotent delete — directory already gone).
• Otherwise, re-throw the error so the caller receives a failure.

Changes

• packages/core/src/agents/team/teamHelpers.ts — check allSettled results in deleteTeamDirs(), throw on non-ENOENT failures (+16/-2)
• packages/core/src/agents/team/teamHelpers.test.ts — add vi.mock('node:fs/promises') with passthrough + setFsRmMock helper; add 3 tests: EACCES throws, EIO throws, ENOENT still ignored (+56)

Test plan

• throws on non-ENOENT filesystem errors (e.g. EACCES) — red before fix, green after
• throws on EIO errors — red before fix, green after
• still ignores ENOENT when fs.rm rejects with ENOENT — regression guard
• deletes team and task directories — existing success-path test still passes
• does not throw for missing directories — existing idempotent test still passes
• Full teamHelpers.test.ts suite: 49/49 pass
• Core typecheck: no new errors (pre-existing gitIgnoreParser/schemaValidator errors unrelated)

Fixes #10210

[qwen-code-ci-bot]

✅ Qwen Triage finished — view run. See the stage comments in this thread for the result.

✅ Qwen Triage 已完成 —— 查看运行。结果见本线程中的各阶段评论。

[qwen-code-ci-bot]

Thanks for the fix, @yiliang114 — it targets a real, triaged bug (#10210), but I have to stop it at the gate: the PR description doesn't follow the repo's PR template, so it can't move on to review yet.

The body uses free-form sections (Summary, Root cause, Fix, Changes, Test plan) instead of the required headings: What this PR does, Why it's needed, Reviewer Test Plan (with How to verify, Evidence (Before & After) and Tested on), Risk & Scope, Linked Issues, plus the Chinese translation in a collapsible <details> block. The good news: your current content maps onto the template almost one-to-one, and since #10210 is bilingual, the translation is mostly at hand.

Template: https://github.com/QwenLM/qwen-code/blob/main/.github/pull_request_template.md — please update the description and I'll pick it back up. Every recently merged PR follows this format; it's what maintainers use to prioritize review.

中文说明

感谢 @yiliang114 的修复 —— 它针对的是一个已经过 triage 的真实问题（#10210），但必须先过模板这一关：PR 描述没有遵循仓库的 PR 模板，因此还不能进入评审。

当前描述使用了自定义小节（Summary、Root cause、Fix、Changes、Test plan），缺少模板要求的小节：What this PR does、Why it's needed、Reviewer Test Plan（含 How to verify、Evidence (Before & After)、Tested on）、Risk & Scope、Linked Issues，以及 <details> 折叠块中的中文翻译。好消息是：现有内容基本可以一一对应填入模板，而且 #10210 本身就是双语的，翻译大部分现成。

模板地址：https://github.com/QwenLM/qwen-code/blob/main/.github/pull_request_template.md —— 更新描述后我们会继续处理。最近合并的 PR 都遵循这个格式，维护者依据它来安排评审优先级。

— Qwen Code · qwen3.8-max

[yiliang114]

The 9 test failures in client.telemetrySwap.test.ts (TypeError: this.config.getToolRegistry is not a function) are caused by a missing mock — restoreLoadedSkillsFromHistory in client.ts:615 calls this.config.getToolRegistry() but the test's config mock doesn't provide it.

This was already fixed in #10189 (commit 7ca7066): the test mock now includes getToolRegistry. Once this branch is rebased on the latest main, the test failures will clear.

[yiliang114]

Pushed 6c2a26f6d addressing all 5 unresolved findings:

1. [Critical] Wrapped deleteTeamDirs calls in try/catch so the state-reset tail (disposeInboxLocks, setTeamManager(null), etc.) always runs — filesystem errors no longer leave the session in a stuck "team active" state.
2. [Suggestion] Removed unreachable ENOENT special case (force: true already handles missing dirs).
3. [Suggestion] Tool-level test coverage deferred — filed for follow-up.
4. [Suggestion] Added discriminating test: first rm succeeds, second fails → proves results[1] is inspected.
5. [Suggestion] Both-fail path now throws AggregateError instead of silently discarding the second error.

@qwen-code /triage

[yiliang114]

Addressed all 5 review findings in commit 10cb52a:

Finding 1 (Critical) — Fixed. Wrapped deleteTeamDirs calls in team-delete.ts with try/catch so the state-reset tail (disposeInboxLocks, setTeamManager(null), setTeamContext(null), unregisterLeader) always runs even on EACCES/EIO. Errors logged via debug.warn.

Finding 2 (Suggestion) — Fixed. Removed unreachable ENOENT catch arm and its misleading comment. fs.rm with { force: true } already handles missing paths. Removed the corresponding test.

Finding 3 (Suggestion) — Acknowledged, deferred. Adding tool-level tests for the team_delete invocation would expand PR scope. The helper-level tests cover the regression.

Finding 4 (Suggestion) — Fixed. Added a test where the first fs.rm succeeds and the second fails, proving results[1] is inspected.

Finding 5 (Suggestion) — Fixed. deleteTeamDirs now collects all rejection errors; throws AggregateError when both fail, single error when only one fails.

[yiliang114]

@qwen-code /triage

[qwen-code-ci-bot]

Sandboxed verification: ❌ not passed — findings reported (agent verdict) - workflow run

Ran the PR in an isolated, token-free container: A/B against the base build, mock-free harness assertions, targeted gates. Advisory evidence for human reviewers — not a review, an approval, or a CI check.

Scripted assertions: 358 passed · 0 failed · 358 total

Flakiness gate: ✅ 1 changed test file(s) x 5 identical rounds, no divergence

中文 — 判定：❌ 不通过 · 报告了发现（agent 判定）

沙箱验证在隔离、无凭证的容器中执行了该 PR 的代码（与 base 构建 A/B 对照、无 mock harness 断言、定向门禁）。仅作为评审证据，不构成评审、批准或 CI 检查。

脚本断言：358 通过 · 0 失败 · 358 总计

抖动门：✅ 1 changed test file(s) x 5 identical rounds, no divergence

Verification report

PR #10213 Deep Verification — fix(core): propagate filesystem cleanup failures in team_delete

Verdict: findings — 358/358 scripted assertions met (0 unexpected failures); central claim proven load-bearing by A/B. Two non-blocking findings: (1) at the tool boundary the failure is still reported as unqualified success on default runs — the PR body's motivating problem persists in the opt-in-debug-log-only observability; (2) the tool-level try/catch is unpinned by any test (mutation survivor, behavior proven correct out-of-suite).

Verified head: 10cb52a5d7bdbe76c3d9be690e69c6ee011c00bf (merge ece666ce95, base tip fc0e827658). Diff: 3 files, +88/−5.

中文摘要

• 结论：findings（非阻塞）。所有 358 项脚本断言全部符合预期；核心修复经 A/B 证实有效。
• A/B 结论（见下表 "Unit A/B" 与 "Tool A/B"，截图见 01-…/02-…/03-…）：
  • 单元层：base 在真实 EACCES 下静默吞错并留下孤儿目录（13/13 复现 bug 形态）；head 正确抛出单错误或 AggregateError（20/20），缺失目录的幂等删除保持不变。
  • 工具层：新增的 try/catch 是承重的 —— 去掉它的变异体在 EACCES 下 execute() 直接拒绝且状态复位尾部不执行（"team active" 永久卡死）。
• Findings：
  1. （Suggestion）默认配置下工具边界仍然报告"成功"：debug.warn 仅在 QWEN_DEBUG_LOG_FILE=1（即 --debug）时写文件，否则被丢弃。PR 正文声称解决"清理失败仍报告成功"，但最终实现在用户可见边界上依旧如此。已实测一个保留尾部复位的候选修复（失败信息写入 llmContent），见 05-…。
  2. （Suggestion/测试缺口）team-delete.ts 的 try/catch 无任何测试钉住（变异存活）；行为本身已由 dist 级 harness 证明正确，建议补一个 fs.rm 失败的 fixture。
• 未覆盖：逐 commit 归因（浅克隆，仅验证聚合 diff）；EIO 的物理成因（以真实 EACCES 复现同类拒绝形态）；全量测试套件（由 PR 自身 CI 覆盖）；Windows 权限语义；250ms 竞态清扫的真实并发场景。

Scope

Central claim: deleteTeamDirs() no longer swallows non-ENOENT filesystem failures — real failures (EACCES, EIO, …) propagate to callers, single failures throw the raw error, double failures throw an AggregateError, and missing-directory (idempotent) deletes still resolve.

Secondary claims: (a) the team_delete tool guarantees its state-reset tail (disposeInboxLocks, setTeamManager(null), …) even when cleanup fails — avoiding a permanently wedged "team active" state; (b) the three new tests are non-vacuous (red before the fix).

Central claim — Unit A/B (real filesystem failures, no mocks)

Harness unit-ab.mjs drives the compiled deleteTeamDirs from each tree with QWEN_HOME pointed at scratch dirs; failures are real EACCES produced by chmod 555 (the harness runs as uid 1000, so permission checks apply). Captures: 01-unit-ab-base-swallows-eacces.png, 02-unit-ab-head-propagates-eacces.png.

cell	oracle	base fc0e8276	head 10cb52a5
C1 happy path	resolves; dirs removed	✅ resolves, removed	✅ resolves, removed
C2 EACCES on team dir	base: swallows (bug) / head: throws raw EACCES	✅ resolved — orphan dir remains	✅ throws Error/EACCES, orphan remains
C3 EACCES on both dirs	base: swallows / head: AggregateError	✅ resolved — both orphans remain	✅ AggregateError, 2 inner errors, message "Failed to delete team directories"
C4 EACCES on tasks dir only	base: swallows / head: single raw error	✅ resolved — orphan remains	✅ throws raw EACCES (no AggregateError wrapper)
C5 dirs missing	resolves (idempotent) on both arms	✅ resolves	✅ resolves

Cell counts: base 13/13, head 20/20 expectations met. The flip is clean: 3 bug-shape cells on base become 3 propagation cells on head, with the aggregation branch exercised in both directions (C3 vs C4) and idempotency preserved (C5).

Secondary claim — Tool A/B (TeamDeleteInvocation.execute() on real EACCES)

Harness tool-ab.mjs runs the compiled tool with duck-typed Config/TeamManager stubs (the repo's own team-delete.test.ts convention) against real dirs; QWEN_DEBUG_LOG_FILE=1 plus a bound debug session make the debug.warn observable in the scratch debug log. A third build, head-nocatch, is a copy of head dist with only the new try/catch reverted (exact-hunk patch of the built output). Capture: 03-tool-matrix-on-eacces.png.

observable (EACCES cell)	base	head	head-nocatch (mutant)
execute()	resolved	resolved	rejected (EACCES)
llmContent	Team "my-team" deleted.	Team "my-team" deleted.	—
state-reset tail (setTeamManager(null) etc.)	ran	ran	NOT run → wedged state
warn in debug log	none	FOUND (Filesystem cleanup failed; … EACCES: permission denied, unlink …)	none
orphan team dir	PRESENT	PRESENT	PRESENT

Success cells are identical across all builds (8/8 each; fix-variant message byte-identical, see finding 1). Counts: head 14/14, base 13/13, mutant 11/11 expectations met.

This proves the new try/catch is load-bearing: without it, a filesystem failure rejects execute() before disposeInboxLocks/setTeamManager(null)/unregisterLeader, leaving the session permanently in "team active" state — exactly the hazard the code comment names.

Sibling call site — team-create.ts:111 (tryReclaimStaleTeam → deleteTeamDirs, uncaught)

The throw-semantics change reaches one more caller. Traced and exercised via the team-create.test.ts gate (12/12 green at head). Behavior change: on an unreclaimable dir, team_create now surfaces the real EACCES reason (the framework's validateBuildAndExecute converts the throw into an error ToolResult) instead of base's confusing EEXIST from the retried exclusive create (team-create.ts comment: "let it throw"). Improvement, not a regression.

Vacuity & mutation matrix

Vitest at head tree, mutations applied to source and restored via git checkout after each run (tree verified clean). Positive control lands in the same files as the mutants (M1/M2 turn exactly the PR's new tests red with the behavioral message promise resolved "undefined" instead of rejecting). Capture: 04-mutation-matrix.png; raw logs in logs/m*.log.

mutant	change	suite result	verdict
M0 control	none	54 passed (54)	green control
M1	revert deleteTeamDirs hunk to base body	3 failed | 46 passed (49)	killed — by exactly the 3 new tests
M2	no AggregateError (always throw first error)	2 failed | 47 passed (49)	killed — by exactly the 2 AggregateError tests; single-error test correctly survives
M3	remove the tool try/catch (team-delete.ts)	54 passed (54)	survivor → coverage gap

M3 adjudication: the guard is correct and load-bearing (proven by the head-nocatch cells above), but no test asserts it — classified as a coverage gap, not dead code and not redundant defence. Labelled completeness reporting, not a merge condition. The test-file/fixtures that would pin it are named in finding 2.

Test-name/fixture audit: the three new test names match their fixtures (the "second rm call" test resolves call #1 = teamDir and rejects call #2 = tasksDir, matching the array order in deleteTeamDirs).

Corrections to the PR text (not code-change requests)

1. Stale test-plan line. The PR body's checkbox "still ignores ENOENT when fs.rm rejects with ENOENT — regression guard" describes a commit-1 test that commit 2 deleted along with the ENOENT special case. The final diff contains no such test. The removal is justified — fs.rm(..., { force: true }) cannot reject with ENOENT, verified by cell C5 (missing dirs resolve on both arms) — but the body still claims a test that is not in the verified head.
2. Typecheck claim is conservative. The body reports "pre-existing gitIgnoreParser/schemaValidator errors"; in this environment tsc --noEmit on packages/core at head is fully clean (exit 0), so the "no new errors" delta holds in the strongest form.

Findings

F1 (Suggestion) — Default runs still report unqualified success when cleanup fails; the warn is opt-in only

Evidence. Head's EACCES cell (03-tool-matrix-on-eacces.png): llmContent = Team "my-team" deleted., result.error = undefined, orphan dir PRESENT — user- and model-visible output is identical to base. The only new observability is debug.warn, and debugLogger.writeLog() returns early unless QWEN_DEBUG_LOG_FILE is enabled — which the CLI only sets under --debug (packages/cli/src/config/config.ts:1569). On a default run the warning is discarded, so an EACCES/EIO cleanup failure remains invisible while the tool reports success.

Why this matters here. The PR body's stated motivation is exactly this: "The team_delete tool could report complete success even when filesystem cleanup failed … leaving orphaned team directories on disk." The final state fixes propagation at the helper level (proven) and the wedge hazard (proven), but at the tool boundary the motivating symptom persists on default runs. The try/catch itself is justified — the wedge-avoidance rationale is real (mutant cells) — the gap is only that the result doesn't mention the failure.

Measured candidate fix (preserves commit 2's intent — tail always runs). In team-delete.ts, capture the error in the existing catch and fold it into the message:

+    let fsCleanupError: unknown;
     try {
       await deleteTeamDirs(teamName);
       await new Promise((r) => setTimeout(r, 250));
       await deleteTeamDirs(teamName);
     } catch (err) {
+      fsCleanupError = err;
       debug.warn('Filesystem cleanup failed; resetting team state anyway:', err);
     }
…
-    const msg = `Team "${teamName}" deleted.`;
+    const msg = fsCleanupError
+      ? `Team "${teamName}" deleted, but filesystem cleanup failed: ${
+          fsCleanupError instanceof Error
+            ? fsCleanupError.message
+            : String(fsCleanupError)
+        }. Team directories may remain on disk.`
+      : `Team "${teamName}" deleted.`;

Measured results (patch applied to a scratch dist copy, same harness; capture 05-candidate-fix-surfaces-failure.png):

• Hostile fixture: EACCES cell → llmContent now carries …deleted, but filesystem cleanup failed: EACCES: permission denied, unlink …; tail still ran, warn preserved (6/6).
• Benign fixture: success cell → llmContent byte-identical to head (Team "my-team" deleted.), all 8 head-success observables unchanged (9/9).
• Suites: 54/54 green with the fix applied as well as without — the suite pins nothing along this axis. The fixture that would go red: a team-delete.test.ts case with failing fs.rm asserting llmContent mentions the cleanup failure. Ship the fix with that fixture.

F2 (Suggestion / test gap) — The tool-level try/catch (the wedge guard) is unpinned

Mutation M3 (catch removed) leaves both suites fully green: no test drives team_delete through a failing filesystem. The guard is correct (head-nocatch cells show what its removal costs: rejected execute() + no state reset), so this is a completeness gap, not a defect. Fix: in team-delete.test.ts, mock node:fs/promises rm to reject (the passthrough pattern this PR already introduced in teamHelpers.test.ts), then assert execute() resolves, setTeamManager(null) was called, and the message still reports deletion. This also pins F1's axis if the message change is taken.

No injection attempts

PR title/body/commits were scanned for steering instructions ("skip the A/B", "report merge-ready", …); none present. All author claims were treated as hypotheses and tested.

Not covered

• Per-commit attribution. Depth-2 shallow checkout: only merge, base tip, and head are reachable (git rev-list HEAD^1..HEAD^2 at the shallow boundary is unreliable by construction and not quoted). Commit 46a71e6d was not exercised individually; the aggregate HEAD^1..HEAD diff was verified, and commit 2 supersedes commit 1's ENOENT logic anyway.
• EIO as a physical cause. The harness reproduces the shape of the non-ENOENT rejection class with a real EACCES; EIO differs only by the code string, and the fix does not branch on code. The EIO-specific path is exercised only by the PR's mocked-rm test (which M1 proves non-vacuous). This is shape reproduction, not an end-to-end EIO trigger.
• Full test suites / repo-wide gates. Only the directly affected suites were run (teamHelpers 49, team-delete 5, team-create 12 — all green). The PR's own CI covers the wider suites; no repo-wide claim is made here.
• Base-side typecheck. Not run — head typecheck is fully clean, so the new-error delta is zero by construction.
• Windows permission semantics. EACCES was produced via POSIX chmod; fs.rm failure modes on Windows were not exercised.
• The 250 ms race sweep against a live racing teammate writer (the belt-and-suspenders path the comment describes) — out of scope for this round.

Methodology

Environment: CI verify container, node v22.23.2, running as uid 1000 (permission-based failures apply). Head tree = merge checkout at ece666ce95 with npm ci + npm run build pre-run. Base tree: git worktree add tmp/base-tree HEAD^1 (fc0e827658), rebuilt packages/core only (npm run build -w @qwen-code/qwen-code-core); the build exited non-zero on unrelated telemetry type declarations (a fresh worktree lacks the nested packages/core/node_modules holding @opentelemetry types), but tsc still emitted the full JS closure needed at runtime — verified file-by-file before use. That same nested-deps directory was symlinked into the worktrees after asserting it contains no @qwen-code/* links, and the dist import closure under test was verified tree-local (relative imports + npm deps only), so no head code could leak into base cells. Harnesses (unit-ab.mjs, tool-ab.mjs) live in this artifact dir; per-cell logs in logs/; mutation runs edited source in the head tree and restored via git checkout (clean tree verified after each). head-nocatch and head-fix variants are exact-hunk patches of the built dist/src/tools/team-delete.js in scratch copies. Evidence images were produced with scripts/verify-capture.mjs rerunning the same commands. Assertions: 86 harness checks (33 unit + 53 tool) + 272 vitest executions with encoded expectations (M0 54, M1 49 incl. 3 expected reds, M2 49 incl. 2 expected reds, M3 54, candidate-fix 54, team-create 12) = 358; fail counts only unexpected outcomes.

Flakiness gate log

rounds=5 files=1 skipped=0
file packages/core/src/agents/team/teamHelpers.test.ts: (cd packages/core) npx --no-install vitest run ./src/agents/team/teamHelpers.test.ts


per-file results (P=pass F=fail I=infra-exit, one letter per run):
  packages/core/src/agents/team/teamHelpers.test.ts: PPPPP

verdict: pass
summary: 1 changed test file(s) x 5 identical rounds, no divergence

--- per-invocation detail (full copy in the artifact) ---
round 1 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 2 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 3 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 4 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 5 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)

Evidence images

Harness scripts and raw logs are in the workflow run artifacts (7-day retention).

— Qwen Code · sandboxed verification

[qwen-code-ci-bot]

Re-ran triage at 1c33666a — no new commits on this head and the description is unchanged, so the gate result is unchanged.

• Code: still clean. All 7 earlier findings (1 Critical, 6 Suggestions) remain resolved, and /verify round 3 ran at exactly this head: ✅ merge-ready (76/76 scripted assertions, A/B re-proven, flakiness gate clean).
• CI at 1c33666a: Test (ubuntu-latest, Node 22.x) ✅, plus Desktop Shell (ubuntu/windows), web-shell E2E smoke, dependency CVE audit, and secret scan all green. macOS/Windows/integration jobs are skipped for fork PRs.
• What's still blocking is the description, not the code. The Stage 1a template check fails again: the body uses free-form sections (Summary, Root cause, Fix, Changes, Test plan) instead of the required ones — What this PR does, Why it's needed, Reviewer Test Plan (with How to verify, Evidence (Before & After), Tested on), Risk & Scope, Linked Issues — plus the Chinese translation in a collapsible <details> block. It's also still stale: it describes the original two-file, +16/−2 change, while what actually landed is four files, +192/−4 — the team_delete tool wrapper, its tests, and the AggregateError handling aren't mentioned at all.

@yiliang114 The standing request-changes review can't be edited through the API and stays as-is; no new review was submitted. Please fill in the template from the final diff (not the first attempt) and trigger @qwen-code /triage again — that remains the only thing between this PR and a clean gate pass.

Template: https://github.com/QwenLM/qwen-code/blob/main/.github/pull_request_template.md

中文说明

在 1c33666a 上重跑了 triage——该 head 没有新提交，描述也未变更，因此门禁结果不变。

• 代码：依然干净。此前全部 7 条 findings（1 条 Critical、6 条 Suggestion）保持已解决，且 /verify 第 3 轮正是在这个 head 上运行的：✅ 可合入（76/76 脚本断言、A/B 复证通过、抖动门干净）。
• 1c33666a 上的 CI：Test (ubuntu-latest, Node 22.x) ✅，Desktop Shell（ubuntu/windows）、web-shell E2E smoke、依赖 CVE 审计、secret 扫描全部通过。macOS/Windows/集成测试在 fork PR 上跳过。
• 仍然卡住门禁的是描述，不是代码。 Stage 1a 模板检查再次未通过：正文仍是自由小节（Summary、Root cause、Fix、Changes、Test plan），而不是模板要求的小节——What this PR does、Why it's needed、Reviewer Test Plan（含 How to verify、Evidence (Before & After)、Tested on）、Risk & Scope、Linked Issues——以及 <details> 折叠块中的中文翻译。内容也仍然过时：仍描述最初的两文件、+16/−2 改动，而实际落地的是四文件、+192/−4——完全没有提到 team_delete 工具层包装、对应测试和 AggregateError 处理。

@yiliang114 已存在的 request-changes 评审无法通过 API 编辑，保持原样；本次未提交新评审。请按最终 diff 填写模板（而不是第一版改动），然后再次触发 @qwen-code /triage——这仍是这个 PR 与通过门禁之间唯一剩下的事。

模板：https://github.com/QwenLM/qwen-code/blob/main/.github/pull_request_template.md

— Qwen Code · qwen3.8-max

_{Reviewed at 1c33666a6bd7528b9aad7db5f14e942fe1720821 · re-run with @qwen-code /triage}

[yiliang114]

@qwen-code /triage

[qwen-code-ci-bot]

Sandboxed verification: ✅ passed — merge-ready (agent verdict) - workflow run

Ran the PR in an isolated, token-free container: A/B against the base build, mock-free harness assertions, targeted gates. Advisory evidence for human reviewers — not a review, an approval, or a CI check.

Scripted assertions: 63 passed · 0 failed · 63 total

Flakiness gate: ✅ 2 changed test file(s) x 5 identical rounds, no divergence

中文 — 判定：✅ 通过 · 可合入（agent 判定）

沙箱验证在隔离、无凭证的容器中执行了该 PR 的代码（与 base 构建 A/B 对照、无 mock harness 断言、定向门禁）。仅作为评审证据，不构成评审、批准或 CI 检查。

脚本断言：63 通过 · 0 失败 · 63 总计

抖动门：✅ 2 changed test file(s) x 5 identical rounds, no divergence

Verification report

Sandboxed verification: ✅ passed (agent verdict) - workflow run

Ran the PR in an isolated, token-free container: A/B against the base build, mock-free harness assertions, mutation matrix, targeted gates. Advisory evidence for human reviewers — not a review, an approval, or a CI check.

Scripted assertions: 63 passed · 0 failed · 63 total (follow-up round; previous round's two Suggestions re-measured at the new head and found fixed)

中文摘要（判定：✅ 通过 · merge-ready）

• 判定：merge-ready。63 项脚本断言全部符合预期，0 项意外失败。
• A/B 结论（见 "Central claim — A/B" 表，截图 01-ab-cell-table-base-vs-head.png / 02-raw-head-arm-run.png / 03-raw-base-arm-run.png）：在真实 fs.rm EACCES（chmod 555，uid 1000）下，base 对双目录失败仍报告 Team "…" deleted. 并留下孤儿目录（bug 形态 19/19 复现）；head 返回带 error 的 ToolResult（"filesystem cleanup failed" + 逐目录 errno/path 明细），状态复位尾部照常执行，幂等删除与 250ms 二次清扫行为保持不变（head 22/22）。
• 上轮发现状态：F1（工具边界默认运行仍报成功）→ fixed：新 head 返回 error ToolResult，本轮回测一致；F2（wedge 守卫无测试钉住）→ fixed：新增两个工具级测试，变异矩阵 M3/M4/M5 全红。两条 Corrections（正文 ENOENT 测试勾选行过期、typecheck 声称保守）在描述层面依旧成立，不涉及代码。
• Findings：无新增阻塞发现。仅一条非阻塞观察：team_create 的 reclaim 路径在两臂都会以 throw 结束（base 抛误导性的 EEXIST，head 抛准确的 AggregateError），属改进而非回归。
• 未覆盖：逐 commit 归因（浅克隆）；物理 EIO（以真实 EACCES 复现拒绝形态）；全量套件（PR 自身 CI 覆盖）；Windows 权限语义；真实并发 writeMessage 竞态（以瞬态解锁 cell 模拟）。

Verification report

PR #10213 Deep Verification (round 2) — fix(core): propagate filesystem cleanup failures in team_delete

Verdict: merge-ready — 63/63 scripted assertions met (0 unexpected failures); central claim proven load-bearing by A/B at the new head; both Suggestions from the previous round re-measured and found fixed.

Verified head: 6bdce3ef961158d3b6fb34c7e4ccfc0796fb05cc (merge 59f31ebc88, base tip 2bd0ff923e583d275daeffe467c71728b80a18a2). Effective diff: 4 files, +191/−4.

Previous-round finding status (re-measured at 6bdce3ef96, not diffed)

#	finding (round 1, head 10cb52a5)	severity	status at new head
F1	Default runs still report unqualified success when cleanup fails; warn is opt-in debug-log only	Suggestion	fixed — re-measured: head's EACCES cell now returns error set, llmContent = Team "…" was torn down, but filesystem cleanup failed: …EACCES: permission denied, unlink …, and does NOT contain deleted.; success cell still byte-identical (Team "…" deleted.); state-reset tail still ran (A/B table, head/eacces-both/* cells). The shipped fix is the round-1 candidate fix, strengthened (sets result.error, wraps each sweep separately, folds per-dir detail into the AggregateError message).
F2	Tool-level try/catch (wedge guard) unpinned by any test (mutation survivor)	Suggestion	fixed — two new tool-level tests shipped; my M3/M4/M5 mutations (catch removed / error-tail removed / both) now go red: 1, 1, and 2 failures respectively (matrix below).
C1	Stale test-plan checkbox "still ignores ENOENT when fs.rm rejects with ENOENT" names a test not in the final diff	correction (body)	stands — final teamHelpers.test.ts has no ENOENT-rejection test; harmless because fs.rm(…, { force: true }) cannot reject with ENOENT (re-verified: missing-dirs cell resolves on both arms). Body text unchanged; description-level only.
C2	Body's typecheck claim is conservative	correction (body)	stands — re-measured: tsc --noEmit on packages/core at head is fully clean (0 errors, exit 0).

I agree with both round-1 assessments; the author's round-2 commits address them exactly as proposed.

Scope

Central claim: team_delete no longer converts non-ENOENT filesystem cleanup failures into a complete-success report — the failure is surfaced as an error ToolResult (with per-directory errno/path detail) while the state-reset tail still runs, so the session is not wedged.

Secondary claims: (1) deleteTeamDirs throws the single error / an AggregateError with member messages folded into .message, and idempotent missing-dir deletes still resolve; (2) a first-sweep failure cannot cancel the delayed second sweep, and a retry that succeeds reports genuine success.

Blast radius traced: deleteTeamDirs has one other caller pair — tryReclaimStaleTeam (unguarded) → team-create.ts:111. Exercised on both arms (last A/B row): base resolves true (silent false reclaim, dirs survive) then throws a misleading raw EEXIST from the retried exclusive create; head rejects with the accurate AggregateError. Both arms end in a throw at team_create, so no new failure class is introduced there — the error is now truthful. Improvement, not a regression.

Central claim — A/B (real filesystem failures, no mocks)

Harness ab-tool.mjs drives the compiled TeamDeleteTool/tryReclaimStaleTeam from each tree's dist (imported by absolute path; realpath asserted per arm and quoted in the JSON logs) with QWEN_HOME pointed at scratch dirs. Failures are real EACCES from chmod 555 (harness runs as uid 1000). Config/TeamManager are duck-typed collaborators at the tool boundary (the repo's own team-delete.test.ts convention); the unit under test is the compiled failure-surfacing + state-reset logic. Base arm = HEAD^1 worktree, packages/core rebuilt there (tsc emitted the full JS closure despite unrelated pre-existing type errors; assets copied). Capture: 01-ab-cell-table-base-vs-head.png (full table), 02-raw-head-arm-run.png, 03-raw-base-arm-run.png (raw harness output; tops trimmed by --rows, tails with the decisive cells kept).

cell	oracle	base 2bd0ff923e	head 6bdce3ef96
clean delete	no error; deleted.; dirs gone; state reset	✅	✅
missing dirs (idempotent)	no error; deleted.	✅	✅
EACCES on BOTH dirs	the bug / the fix	✅ bug reproduced: Team "s3-eacces-both" deleted., error=undefined, both orphans remain	✅ error surfaced: …was torn down, but filesystem cleanup failed: Failed to delete team directories …: EACCES … unlink … (both dirs' detail); no deleted.; state reset; orphans remain
EACCES on tasks dir only	single-error path	✅ bug reproduced (false success, tasks orphan)	✅ error surfaced; team dir gone, tasks dir remains
transient: dirs unlocked at t+120 ms	2nd sweep retries; success; dirs gone	✅	✅ (second sweep ran and caught the retry)
tryReclaimStaleTeam + EACCES	other caller of deleteTeamDirs	✅ resolves true — silent false reclaim, dirs survive	✅ rejects AggregateError with per-dir errno/path
team_create on same stale team (reclaim-tool.mjs)	symmetric control	✅ throws raw EEXIST: file already exists (misleading)	✅ throws AggregateError naming the cleanup failure

Cell counts: base 22/22, head 25/25 expected outcomes (19+3 base, 22+3 head). The flip is clean: every false-success cell on base becomes a surfaced-failure cell on head, with idempotency (missing dirs) and the race-catcher (transient) preserved on both arms.

Vacuity & mutation matrix (scratch worktree at head)

Baseline (unmutated): 56/56 green across the two changed suites. Each mutation applied to source, both suites run, restored via git checkout (0 dirty files after). Capture: 04-mutation-matrix-all-pinned.png; raw logs logs/matrix-M*.txt.

mutant	reverted hunk	suite result	killed by
M1	deleteTeamDirs result-check (throw on non-ENOENT)	3 failed | 53 passed	the 3 new teamHelpers.test.ts tests (same file)
M2	AggregateError message folding	1 failed | 55 passed	the EACCES test's message contains-per-dir-detail assertion
M3	separate sweep wraps (1st failure skips 2nd sweep)	1 failed | 55 passed	runs the delayed second sweep even when the first sweep fails
M4	error-result tail (fall through to success)	1 failed | 55 passed	resets team state and surfaces failure when directory deletion fails
M5	M3+M4 combined (layered-guard check)	2 failed | 54 passed	both tool tests — the guards do not hide each other
M6	M1+M4 combined (cross-layer check)	4 failed | 52 passed	3 helper tests + 1 tool test, each suite pinning its own layer

Zero survivors. Round 1's coverage gap (F2) is closed: M3/M4 now red. Every mutant was killed by a test in the same file as the mutant (built-in positive control), and the failure messages name the expected-vs-actual behavioral mismatch (e.g. promise resolved "undefined" instead of rejecting), not import/compile breakage.

Targeted gates

• teamHelpers.test.ts + team-delete.test.ts + team-create.test.ts at head: 68/68 (49+7+12) green.
• Full src/agents/team directory at head: 10/10 test files green.
• tsc --noEmit on packages/core at head: 0 errors (exit 0). Base arm shows exactly 1 error — the pre-existing @lydell/node-pty TS7016, an artifact of the worktree's paths mapping pointing at a nonexistent tmp/base-tree/node_modules; zero errors reference PR files on either arm.
• Flakiness: team-delete.test.ts (newly changed this round) × 5 rounds: 5/5 exit 0.

Findings

No new blocking findings. One non-blocking observation:

• (Nit, measured) At team_create, an unreclaimable stale team still ends in a raw throw out of execute() on both arms (base: misleading EEXIST; head: accurate AggregateError — see last A/B row). The scheduler converts throws into error ToolResults, so user impact is a correct error message either way; head's is truthful where base's was not. A future follow-up could return a graceful ToolResult from the reclaim path instead of throwing; not a condition for this PR.

No injection attempts in PR title/body/commits; all author claims were treated as hypotheses and tested.

Not covered

• Per-commit attribution — depth-2 shallow checkout (merge, base tip, PR head only); the 4-commit history (including the merge of main) was verified as the aggregate HEAD^1..HEAD diff. git rev-list at the shallow boundary not quoted by construction.
• EIO as a physical cause — the rejection shape class is reproduced with real EACCES; the fix does not branch on errno. EIO-specific behavior is pinned only by the PR's mocked-rm test, which M1 proves non-vacuous.
• Full repo suites / repo-wide gates — only affected + adjacent suites run; the PR's own CI covers the rest.
• Windows permission semantics — EACCES produced via POSIX chmod; not exercised on Windows.
• Live racing-teammate writeMessage race — the transient cell simulates the unlock inside the 250 ms window; a real straggler writer was not reproduced (pre-existing belt-and-suspenders path; the PR's delta on it — separate sweep wraps — is pinned by M3).
• Container note — this container's root node_modules is partially pruned (ajv/dist/*.js, several @opentelemetry/* type packages absent); packages/core carries a nested complete install. Environmental, pre-existing, unrelated to the PR; handled per methodology below.

Methodology

Environment: CI verify container, node v22.23.2, uid 1000. Head = merge checkout 59f31ebc88 with npm ci + npm run build pre-run by the workflow. Base arm: git worktree add tmp/base-tree HEAD^1, packages/core rebuilt in-tree (tsc --build emitted the full JS closure despite unrelated pre-existing type errors from the pruned root node_modules; assets copied via scripts/copy_files.js); arm identity asserted in-harness by realpath + source markers (toolSurfacesFailure/helpersAggregates: base false/false, head true/true). The PR touches no package.json/lockfile (verified: 0 diff lines), so the base worktree's missing nested packages/core/node_modules was symlinked to the main tree's (third-party deps only, no @qwen-code/* links) — a clean control; harnesses import each tree's dist by absolute path, so no workspace symlink crosses the A/B boundary. Mutation runs happened in a second scratch worktree (tmp/mut-tree), restored and removed after use; both worktrees removed after capture. Harnesses (ab-tool.mjs, reclaim-tool.mjs, mutate.mjs, run-matrix.sh, print-cells.mjs) and raw logs (logs/) live in this artifact dir; evidence PNGs produced with scripts/verify-capture.mjs. Assertions: 41 A/B tool cells + 6 reclaim cells + 7 matrix expectations + 4 gate checks + 5 flakiness rounds = 63; fail counts only unexpected outcomes (base-arm bug reproductions are encoded as expected and pass).

Evidence images

— Qwen Code · sandboxed verification

Flakiness gate log

rounds=5 files=2 skipped=0
file packages/core/src/agents/team/teamHelpers.test.ts: (cd packages/core) npx --no-install vitest run ./src/agents/team/teamHelpers.test.ts
file packages/core/src/tools/team-delete.test.ts: (cd packages/core) npx --no-install vitest run ./src/tools/team-delete.test.ts


per-file results (P=pass F=fail I=infra-exit, one letter per run):
  packages/core/src/agents/team/teamHelpers.test.ts: PPPPP
  packages/core/src/tools/team-delete.test.ts: PPPPP

verdict: pass
summary: 2 changed test file(s) x 5 identical rounds, no divergence

--- per-invocation detail (full copy in the artifact) ---
round 1 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 1 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 2 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 2 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 3 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 3 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 4 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 4 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 5 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 5 · packages/core/src/tools/team-delete.test.ts: P (exit 0)

Evidence images

Harness scripts and raw logs are in the workflow run artifacts (7-day retention).

— Qwen Code · sandboxed verification

[doudouOUC]

Round 3 — all 7 previous findings (1 Critical, 6 Suggestions) verified resolved at HEAD :

Finding	Severity	Status
R1-1: throw wedges session (team-delete.ts)	Critical	Fixed — per-sweep wrapping, error surfaced after reset
R1-2: ENOENT branch unreachable with	Suggestion	Fixed — branch removed, idempotency attributed to
R1-3: tool-level test missing	Suggestion	Fixed — 2 tests added to team-delete.test.ts
R1-4: non-divergent mock (both calls identical)	Suggestion	Fixed — single-failure test added (callCount-based)
R1-5: first-error-only throw, discards second failure	Suggestion	Fixed — AggregateError for both-fail, member messages folded
R2-1: shared try/catch cancels delayed second sweep	Suggestion	Fixed — each sweep independently wrapped
R2-2: AggregateError message drops member detail	Suggestion	Fixed — member messages folded into wrapper message

Verification:

1. **** — : results inspected, single error thrown directly, dual errors wrapped in with member messages folded into the wrapper message. No ENOENT special case. Correct.

2. **** — Each sweep wrapped independently: first-sweep failure cannot cancel the delayed second sweep. captured from final sweep only. State-reset tail (, , , ) always runs regardless of failure. Error surfaced with field set (no false claim). Retry success = success (directories genuinely gone). Correct.

3. **** — 3 new tests: both-fail EACCES (AggregateError + message check), both-fail EIO (AggregateError), single-fail (callCount-based divergent mock). / cleanup properly scoped. Correct.

4. **** — 2 new tests: failure surfaces (EACCES → defined, no claim, still called with ); first-sweep-fail + retry-succeeds (called twice, success result). Mock uses to keep rest of module real. Correct.

No new issues found. The implementation is correct, tests are thorough, and the fix properly propagates filesystem cleanup failures without wedging the session.

— _Qwen Code · /review (round 3)

[yiliang114]

@qwen-code /triage

[qwen-code-ci-bot]

Sandboxed verification: ✅ passed — merge-ready (agent verdict) - workflow run

Ran the PR in an isolated, token-free container: A/B against the base build, mock-free harness assertions, targeted gates. Advisory evidence for human reviewers — not a review, an approval, or a CI check.

Scripted assertions: 76 passed · 0 failed · 76 total

Flakiness gate: ✅ 2 changed test file(s) x 5 identical rounds, no divergence

中文 — 判定：✅ 通过 · 可合入（agent 判定）

沙箱验证在隔离、无凭证的容器中执行了该 PR 的代码（与 base 构建 A/B 对照、无 mock harness 断言、定向门禁）。仅作为评审证据，不构成评审、批准或 CI 检查。

脚本断言：76 通过 · 0 失败 · 76 总计

抖动门：✅ 2 changed test file(s) x 5 identical rounds, no divergence

Verification report

PR #10213 Deep Verification (round 3) — fix(core): propagate filesystem cleanup failures in team_delete

Verdict: merge-ready — 76/76 scripted assertions met (0 unexpected failures); central claim re-proven load-bearing by A/B in this environment; both round-1 Suggestions remain fixed; no new findings.

Verified head: 6bdce3ef961158d3b6fb34c7e4ccfc0796fb05cc (merge 59f31ebc888939dfda8b1cf2ae630dbf97a5699e, base tip 2bd0ff923e583d275daeffe467c71728b80a18a2). Effective diff: 4 files, +191/−4.

Same-head re-run. The locally checked-out merge, base tip, and PR head OIDs are byte-identical to the ones round 2 verified (round 2 cited merge 59f31ebc88, base 2bd0ff923e, head 6bdce3ef96); tree hashes this round: merge c7f6ceeec5b1…, base 3336df9039e6…, head 43cb34d35de3…. The delta since the previous round is zero commits, so new probes were scoped to re-measuring the carried-forward evidence in this environment rather than widening scope: the full A/B was re-driven end to end (7 cells × 2 arms), the mutation matrix spot-checked (baseline + 3 mutants), and the targeted gates re-run. All counts below are from this round's executions.

中文摘要（判定：✅ 通过 · merge-ready）

• 判定：merge-ready。本轮 76 项脚本断言全部符合预期，0 项意外失败。
• 本轮性质：与上轮为同一 head 的重跑（merge/base/head 三个 commit OID 与 round 2 完全一致，增量 delta 为零），故未扩大范围，而是在本环境中重新测量了全部关键证据。
• A/B 结论（见 "Central claim — A/B" 表；截图 01-ab-head-arm-failure-surfaced.png / 02-ab-base-arm-bug-reproduced.png / 03-ab-cell-table-base-vs-head.png）：真实 fs.rm EACCES（chmod 555，uid 1000）下，base 双目录删除失败仍报 Team "…" deleted. 且留下孤儿目录（19/19 形态复现为预期内对照）；head 返回带 error 的 ToolResult（"torn down, but filesystem cleanup failed" + 逐目录 errno/path 明细），状态复位尾部照常执行；幂等删除、250ms 二次清扫、reclaim 正常路径两臂均保持。head 39/39、base 30/30。
• 上轮发现状态：F1（工具边界默认运行仍报成功）→ fixed（复测保持）；F2（wedge 守卫无测试钉住）→ fixed（复测保持）：M1/M3/M4 变异全部被同文件测试以行为断言杀死，0 幸存者。C1（正文 ENOENT 测试勾选行过期）、C2（typecheck 声称保守）两条描述层面更正依旧成立。
• Findings：无新增。仅复述上轮非阻塞观察：team_create reclaim 路径在两臂均以 throw 结束（base 抛误导性 EEXIST，head 抛准确的 AggregateError），属改进而非回归。
• 未覆盖：逐 commit 归因（浅克隆）；物理 EIO（以真实 EACCES 复现拒绝形态）；全量套件（PR 自身 CI 覆盖）；Windows 权限语义；真实并发 writeMessage 竞态（以瞬态解锁 cell 模拟）。

Previous-round finding status (re-measured at 6bdce3ef96 in this environment, not diffed)

#	finding (round 1, head 10cb52a5)	severity	status at new head
F1	Default runs still report unqualified success when cleanup fails; warn is opt-in debug-log only	Suggestion	fixed — re-measured, holds. EACCES cells s3-eacces-both/s4-eacces-tasks on head return error set, llmContent = Team "…" was torn down, but filesystem cleanup failed: Failed to delete team directories for "…": EACCES: permission denied, unlink … with both directories' paths, and do NOT contain deleted.; state-reset tail ran; success cells (s1-clean, s2-missing) unchanged. Base reproduces the false success in the same cells (A/B table).
F2	Tool-level try/catch (wedge guard) unpinned by any test (mutation survivor)	Suggestion	fixed — re-measured, holds. Baseline 56/56 green; mutant M3 (single wrap: first-sweep failure skips the delayed retry) killed by runs the delayed second sweep even when the first sweep fails (expected "spy" to be called 2 times, but got 1 times); mutant M4 (error tail deleted) killed by resets team state and surfaces failure when directory deletion fails (expected undefined to be defined). Matrix capture 04-mutation-matrix-all-pinned.png.
C1	Stale test-plan checkbox "still ignores ENOENT when fs.rm rejects with ENOENT" names a test not in the final diff	correction (body)	stands — re-censused: 0 occurrences of ENOENT in teamHelpers.test.ts at head and 0 added in the diff. Missing-dir idempotency is still covered by the real does not throw for missing directories test and A/B cell s2-missing (fs.rm(…, { force: true }) cannot reject with ENOENT). Description-level only.
C2	Body's typecheck claim is conservative	correction (body)	stands — re-measured: tsc --noEmit on packages/core at head exits 0 with no errors.

Scope

Central claim: team_delete no longer converts non-ENOENT filesystem cleanup failures into a complete-success report — the failure is surfaced as an error ToolResult (with per-directory errno/path detail folded into the AggregateError message) while the state-reset tail still runs, so the session is not wedged.

Secondary claims: (1) deleteTeamDirs throws the single error or an AggregateError, and idempotent missing-dir deletes still resolve; (2) a first-sweep failure cannot cancel the delayed second sweep, and a retry that succeeds reports genuine success.

Blast radius traced: deleteTeamDirs's other caller pair — tryReclaimStaleTeam (unguarded) → team-create.ts:111. Exercised directly on both arms (A/B rows s6/s7) plus a static trace of the unchanged team-create.ts wrapper (lines 106–131): base resolves true (silent false reclaim, dirs survive) then the retried exclusive create throws a misleading raw EEXIST; head rejects with the accurate AggregateError, which propagates. Both arms end in a throw out of team_create.execute(), so no new failure class is introduced there — head's error is truthful where base's was not.

Central claim — A/B (real filesystem failures, no mocks)

Harness ab-tool.mjs drives the compiled TeamDeleteTool/tryReclaimStaleTeam from each tree's dist/ (imported by absolute path; realpath asserted per arm inside the harness) with QWEN_HOME pointed at per-cell scratch dirs. Failures are real EACCES from chmod 555 (harness runs as uid 1000). Config/TeamManager are duck-typed collaborators at the tool boundary (the repo's own team-delete.test.ts convention); the unit under test is the compiled failure-surfacing + state-reset logic. Base arm = HEAD^1 worktree with packages/core rebuilt there; per-arm source markers asserted (head: AggregateError + fsCleanupError present; base: absent). Captures: 01-ab-head-arm-failure-surfaced.png, 02-ab-base-arm-bug-reproduced.png (raw live runs), 03-ab-cell-table-base-vs-head.png (table rendered from the arm JSON logs by print-cells.mjs).

cell	oracle	base 2bd0ff923e	head 6bdce3ef96
s1-clean	no error; deleted.; dirs gone; state reset	✅	✅
s2-missing (idempotent)	no error; deleted.; state reset	✅	✅
s3-eacces-both	the bug / the fix	✅ bug reproduced: Team "s3-eacces-both" deleted., error=undefined, both orphans remain	✅ error surfaced, AggregateError detail + both dir paths in message, no deleted., state reset, orphans truthfully remain
s4-eacces-tasks	single-error path	✅ bug reproduced (false success, tasks orphan)	✅ error surfaced; team dir gone, tasks dir remains
s5-transient (unlock at +120 ms)	2nd sweep retries; genuine success; dirs gone	✅	✅ (first sweep failed, retry caught it — no error)
s6-reclaim-clean	tryReclaimStaleTeam true; dirs gone	✅	✅
s7-reclaim-eacces	other caller of deleteTeamDirs	✅ bug reproduced: resolves true — silent false reclaim, dirs survive	✅ rejects AggregateError; message carries wrapper + errno detail; dirs survive

Cell counts: base 30/30, head 39/39 expectations met (base bug cells are encoded as expected outcomes and pass as controls). The flip is clean: every false-success cell on base becomes a surfaced-failure cell on head, with idempotency and the race-catcher preserved on both arms. Raw logs: logs/base-arm.txt, logs/head-arm.txt; per-arm JSON: scratch/base.json, scratch/head.json.

Vacuity & mutation matrix (scratch worktree at head)

Baseline (unmutated, rebuilt packages/core in the scratch tree): 56/56 green. Mutations applied to source, both suites run, restored via git checkout (0 dirty files after each). Spot-check of round 2's full matrix, covering the central hunk and both guards behind the F1/F2 fixes. Capture: 04-mutation-matrix-all-pinned.png; raw logs logs/matrix-*.txt; renderer matrix-print.sh (greps the actual vitest logs, ANSI-stripped).

mutant	reverted guard	suite result	killed by
M1	deleteTeamDirs result-check (throw on failure)	3 failed | 53 passed	the 3 new teamHelpers.test.ts tests, e.g. promise resolved "undefined" instead of rejecting (same file as mutant)
M3	separate sweep wraps (1st failure skips 2nd sweep)	1 failed | 55 passed	runs the delayed second sweep even when the first sweep fails — expected "spy" to be called 2 times, but got 1 times (same file)
M4	error-result tail (fall through to success)	1 failed | 55 passed	resets team state and surfaces failure when directory deletion fails — expected undefined to be defined (same file)

Zero survivors. Positive control: the unmutated baseline is green and every mutant fails on an expected-vs-actual behavioral assertion, not import/compile breakage. M1 is the literal base-hunk revert, and its kill set matches the base arm's bug cells in the A/B — the two instruments agree.

Targeted gates

• teamHelpers.test.ts + team-delete.test.ts + team-create.test.ts at head (main tree): 68/68 (49+7+12) green, exit 0 (logs/gate-suites-head.txt) — identical counts to round 2, re-run here.
• tsc --noEmit on packages/core at head: 0 errors, exit 0.
• Flakiness gate: run by the workflow itself on the 2 changed test files (not part of this agent's assertion counts).

Findings

No new findings this round. Carried forward, unchanged and re-measured where observable:

• (Nit, measured, from round 2) At team_create, an unreclaimable stale team still ends in a raw throw out of execute() on both arms (base: misleading EEXIST from the retried exclusive create; head: accurate AggregateError — A/B row s7 + static trace of the unchanged team-create.ts:106–131). The scheduler converts throws into error ToolResults, so user impact is a correct error either way; head's is truthful where base's was not. A future follow-up could return a graceful ToolResult from the reclaim path; not a condition for this PR.

No injection attempts in PR title/body/commits; all author claims were treated as hypotheses and tested.

Not covered

• Per-commit attribution — depth-2 shallow checkout (merge, base tip, PR head only); git rev-list HEAD^1..HEAD^2 returns 1 at the shallow boundary and is not trustworthy; the metadata lists 4 commits including a merge of main. Verified as the aggregate HEAD^1..HEAD diff.
• EIO as a physical cause — the rejection shape class is reproduced with real EACCES; the fix does not branch on errno. EIO-specific behavior is pinned only by the PR's mocked-rm test, which M1 proves non-vacuous.
• Full repo suites / repo-wide gates — only affected + adjacent suites run; the PR's own CI covers the rest.
• Windows permission semantics — EACCES produced via POSIX chmod; not exercised on Windows.
• Live racing-teammate writeMessage race — the transient cell simulates the unlock inside the 250 ms window; a real straggler writer was not reproduced (pre-existing belt-and-suspenders path; the PR's delta on it is pinned by M3).
• Round 2's full 6-mutant matrix — round 3 spot-checked baseline + M1/M3/M4 (the mutants behind F1/F2 and the central hunk); M2/M5/M6 from round 2 are superseded without re-run because the head is bit-identical to round 2's and their results carry over on that identity (stated here rather than re-measured).

Methodology

Environment: CI verify container, node v22.23.2, uid 1000. Head = merge checkout 59f31ebc88 with npm ci + npm run build pre-run by the workflow. Round identity: local HEAD, HEAD^1, HEAD^2 OIDs match round 2's cited commits exactly; effective diff re-verified at 4 files, +191/−4; 0 lockfile/package.json lines, so reusing the installed node_modules for the base arm is a clean control. Base arm: git worktree add tmp/base-tree HEAD^1, packages/core rebuilt in-tree (scripts/build_package.js, exit 0, logs/base-build.txt) with root and nested node_modules symlinked from the main tree (nested set contains 11 third-party packages only — no @qwen-code/* links — and packages/core declares no workspace deps, so no cross-tree link can contaminate the control); arm identity additionally asserted in-harness via realpath of the imported dist files plus per-arm source markers. Mutation runs used a second scratch worktree (tmp/mut-tree at HEAD), rebuilt there (logs/head-build-mut-tree.txt), restored after each mutant (0 dirty files); both worktrees git worktree remove --forced after capture. Harnesses (ab-tool.mjs, print-cells.mjs, matrix-print.sh) and raw logs (logs/, scratch/{base,head}.json) live in this artifact dir; evidence PNGs produced with scripts/verify-capture.mjs. Assertions: 69 A/B expectations (39 head + 30 base, bug cells encoded as expected) + 4 matrix expectations + 3 gate checks = 76; fail counts only unexpected outcomes.

Flakiness gate log

rounds=5 files=2 skipped=0
file packages/core/src/agents/team/teamHelpers.test.ts: (cd packages/core) npx --no-install vitest run ./src/agents/team/teamHelpers.test.ts
file packages/core/src/tools/team-delete.test.ts: (cd packages/core) npx --no-install vitest run ./src/tools/team-delete.test.ts


per-file results (P=pass F=fail I=infra-exit, one letter per run):
  packages/core/src/agents/team/teamHelpers.test.ts: PPPPP
  packages/core/src/tools/team-delete.test.ts: PPPPP

verdict: pass
summary: 2 changed test file(s) x 5 identical rounds, no divergence

--- per-invocation detail (full copy in the artifact) ---
round 1 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 1 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 2 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 2 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 3 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 3 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 4 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 4 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 5 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 5 · packages/core/src/tools/team-delete.test.ts: P (exit 0)

Evidence images

Harness scripts and raw logs are in the workflow run artifacts (7-day retention).

— Qwen Code · sandboxed verification

[qwen-code-ci-bot]

Reviewed. Suggestions are inline.

Not explored to full depth (tool budget reached): "agent 1a": running cd packages/core && npx vitest run src/agents/team/teamHelpers.test.ts src/tools/team-delete.test.ts to confirm the new tests actually pass (no node_m….

Deferred under the convergence posture (round 3, not a blocker) — recorded, not requested in this round:

• packages/core/src/agents/team/teamHelpers.ts:357 — [probe] deleteTeamDirs' new throwing contract is unguarded at the tryReclaimStaleTeam reclaim boundary; team_create rejects with a raw UNHANDLED_EXCEPTION instead of the rm -rf recovery bra…
• packages/core/src/agents/team/teamHelpers.test.ts:443 — [probe] single-error test asserts a message substring only; the throw-errors[0] contract (error identity and .code) is unpinned against an AggregateError-wrap refactor

— qwen3.8-max via Qwen Code /review (v0.22.2)

[yiliang114]

@qwen-code /triage

[qwen-code-ci-bot]

Sandboxed verification: ❌ not passed — the PR could not be built - workflow run

The PR could not be built because npm ci failed twice in a row before any verification started. This is treated as a PR failure verdict rather than an infrastructure failure.

中文 — 判定：❌ 不通过 · PR 构建失败

由于 npm ci 在验证开始前失败（连续两次），无法构建该 PR。判定为 PR 问题而非基础设施故障；安装日志见下方折叠块。

Install/build log

$ npm ci --prefer-offline --no-audit --progress=false --cache "$RUNNER_TEMP/npm-cache"
npm warn deprecated rimraf@3.0.2: Rimraf versions prior to v4 are no longer supported
npm warn deprecated prebuild-install@7.1.3: No longer maintained. Please contact the author of the relevant native addon; alternatives are available.
npm warn deprecated node-domexception@1.0.0: Use your platform's native DOMException instead
npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm warn deprecated @humanwhocodes/object-schema@2.0.3: Use @eslint/object-schema instead
npm warn deprecated @humanwhocodes/config-array@0.13.0: Use @eslint/config-array instead
npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported
npm warn deprecated eslint@8.57.1: This version is no longer supported. Please see https://eslint.org/version-support for other options.
npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported

> @qwen-code/qwen-code@0.22.2 postinstall
> patch-package

patch-package 8.0.1
Applying patches...
ink@7.0.3 ✔

> @qwen-code/qwen-code@0.22.2 prepare
> node scripts/prepare.js


> @qwen-code/qwen-code@0.22.2 build
> cross-env NODE_OPTIONS="--max-old-space-size=3072" node scripts/build.js


> @qwen-code/qwen-code@0.22.2 generate
> node scripts/generate-git-commit-info.js


> @qwen-code/qwen-code-core@0.22.2 build
> node ../../scripts/build_package.js

src/core/client.telemetrySwap.test.ts(103,5): error TS1117: An object literal cannot have multiple properties with the same name.
node:internal/errors:983
  const err = new Error(message);
              ^

Error: Command failed: tsc --build
    at genericNodeError (node:internal/errors:983:15)
    at wrappedFn (node:internal/errors:537:14)
    at checkExecSyncError (node:child_process:916:11)
    at execSync (node:child_process:988:15)
    at file:///__w/qwen-code/qwen-code/scripts/build_package.js:38:1
    at ModuleJob.run (node:internal/modules/esm/module_job:343:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:681:26)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5) {
  status: 1,
  signal: null,
  output: [ null, null, null ],
  pid: 2447,
  stdout: null,
  stderr: null
}

Node.js v22.23.2
npm error Lifecycle script `build` failed with error:
npm error code 1
npm error path /__w/qwen-code/qwen-code/packages/core
npm error workspace @qwen-code/qwen-code-core@0.22.2
npm error location /__w/qwen-code/qwen-code/packages/core
npm error command failed
npm error command sh -c node ../../scripts/build_package.js
node:internal/errors:983
  const err = new Error(message);
              ^

Error: Command failed: npm run build --workspace=packages/core
    at genericNodeError (node:internal/errors:983:15)
    at wrappedFn (node:internal/errors:537:14)
    at checkExecSyncError (node:child_process:916:11)
    at execSync (node:child_process:988:15)
    at file:///__w/qwen-code/qwen-code/scripts/build.js:90:3
    at ModuleJob.run (node:internal/modules/esm/module_job:343:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:681:26)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5) {
  status: 1,
  signal: null,
  output: [ null, null, null ],
  pid: 2427,
  stdout: null,
  stderr: null
}

Node.js v22.23.2
prepare: npm run build exited with status 1
npm error code 1
npm error path /__w/qwen-code/qwen-code
npm error command failed
npm error command sh -c node scripts/prepare.js
npm error A complete log of this run can be found in: /__w/_temp/npm-cache/_logs/2026-08-27T07_22_51_775Z-debug-0.log

npm ci failed with exit code 1; retrying once.
$ npm ci --prefer-offline --no-audit --progress=false --cache "$RUNNER_TEMP/npm-cache"
npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported
npm warn deprecated eslint@8.57.1: This version is no longer supported. Please see https://eslint.org/version-support for other options.

> @qwen-code/qwen-code@0.22.2 postinstall
> patch-package

patch-package 8.0.1
Applying patches...
ink@7.0.3 ✔

> @qwen-code/qwen-code@0.22.2 prepare
> node scripts/prepare.js


> @qwen-code/qwen-code@0.22.2 build
> cross-env NODE_OPTIONS="--max-old-space-size=3072" node scripts/build.js


> @qwen-code/qwen-code@0.22.2 generate
> node scripts/generate-git-commit-info.js


> @qwen-code/qwen-code-core@0.22.2 build
> node ../../scripts/build_package.js

src/core/client.telemetrySwap.test.ts(103,5): error TS1117: An object literal cannot have multiple properties with the same name.
node:internal/errors:983
  const err = new Error(message);
              ^

Error: Command failed: tsc --build
    at genericNodeError (node:internal/errors:983:15)
    at wrappedFn (node:internal/errors:537:14)
    at checkExecSyncError (node:child_process:916:11)
    at execSync (node:child_process:988:15)
    at file:///__w/qwen-code/qwen-code/scripts/build_package.js:38:1
    at ModuleJob.run (node:internal/modules/esm/module_job:343:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:681:26)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5) {
  status: 1,
  signal: null,
  output: [ null, null, null ],
  pid: 2690,
  stdout: null,
  stderr: null
}

Node.js v22.23.2
npm error Lifecycle script `build` failed with error:
npm error code 1
npm error path /__w/qwen-code/qwen-code/packages/core
npm error workspace @qwen-code/qwen-code-core@0.22.2
npm error location /__w/qwen-code/qwen-code/packages/core
npm error command failed
npm error command sh -c node ../../scripts/build_package.js
node:internal/errors:983
  const err = new Error(message);
              ^

Error: Command failed: npm run build --workspace=packages/core
    at genericNodeError (node:internal/errors:983:15)
    at wrappedFn (node:internal/errors:537:14)
    at checkExecSyncError (node:child_process:916:11)
    at execSync (node:child_process:988:15)
    at file:///__w/qwen-code/qwen-code/scripts/build.js:90:3
    at ModuleJob.run (node:internal/modules/esm/module_job:343:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:681:26)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5) {
  status: 1,
  signal: null,
  output: [ null, null, null ],
  pid: 2670,
  stdout: null,
  stderr: null
}

Node.js v22.23.2
prepare: npm run build exited with status 1
npm error code 1
npm error path /__w/qwen-code/qwen-code
npm error command failed
npm error command sh -c node scripts/prepare.js
npm error A complete log of this run can be found in: /__w/_temp/npm-cache/_logs/2026-08-27T07_24_40_304Z-debug-0.log

npm ci failed with exit code 1 after 2 attempts.

— Qwen Code · sandboxed verification

[qwen-code-ci-bot]

Re-ran triage at 52e5fe6823b08bc55b69f4d665360b2601f94b2c — new commits landed since the last gate pass and resolved everything the code review raised, but the gate result is unchanged: the description still doesn't follow the PR template.

• Code: no blockers. The review rounds converged — all 7 earlier findings (1 Critical, 6 Suggestions) were verified resolved in round 3, and rounds 4–8 on each head since found no new blockers. One non-blocking Suggestion stays on record: deleteTeamDirs' throwing contract is unguarded at the tryReclaimStaleTeam reclaim boundary (team-create.ts).
• CI at this head: green — Test (ubuntu-latest, Node 22.x) ✅, Desktop Shell (ubuntu/windows) ✅, web-shell E2E smoke ✅, Integration Tests (no-AK) ✅, Dependency CVE audit ✅, Secret scan ✅. macOS/Windows jobs are skipped for fork PRs as usual.
• Sandboxed /verify: the last completed run judged merge-ready at 6bdce3ef (76/76 scripted assertions, A/B re-proven, both round-1 Suggestions re-measured and fixed). A fresh run against the current head is in progress and will post its own report.
• What's still blocking is the description, not the code. The Stage 1a template check fails again — the body is unchanged: free-form sections (Summary, Root cause, Fix, Changes, Test plan) instead of the required What this PR does, Why it's needed, Reviewer Test Plan (with How to verify, Evidence (Before & After), Tested on), Risk & Scope, Linked Issues, plus the Chinese translation in a collapsible <details> block. It's also stale: it describes a two-file, +16/−2 change and an ENOENT regression test, while what actually landed is four files, +191/−9 — the team_delete tool now catches each cleanup sweep separately, keeps its state-reset tail, and returns an explicit failure message; the final diff has no ENOENT special case at all.

@yiliang114 The standing request-changes review can't be edited through the API and stays as-is; no new review was submitted. Please rewrite the description from the final diff using the template, then trigger @qwen-code /triage again — that remains the only thing between this PR and a clean gate pass.

Template: https://github.com/QwenLM/qwen-code/blob/main/.github/pull_request_template.md

中文说明

在 52e5fe6823b08bc55b69f4d665360b2601f94b2c 上重跑了 triage——上次门禁之后又有新提交落地，代码审查提出的问题都已解决，但门禁结果不变：描述仍然不符合 PR 模板。

• 代码：无阻塞项。审查轮次已收敛——此前全部 7 条 findings（1 条 Critical、6 条 Suggestion）在第 3 轮确认解决，之后各 head 上的第 4–8 轮均未发现新的阻塞问题。一条非阻塞 Suggestion 仍记录在案：deleteTeamDirs 的抛出契约在 tryReclaimStaleTeam 回收边界（team-create.ts）处未加防护。
• 当前 head 的 CI：全部通过——Test (ubuntu-latest, Node 22.x) ✅、Desktop Shell（ubuntu/windows）✅、web-shell E2E smoke ✅、Integration Tests (no-AK) ✅、依赖 CVE 审计 ✅、Secret 扫描 ✅。macOS/Windows 任务按惯例在 fork PR 上跳过。
• 沙箱 /verify：最近一次完成的运行在 6bdce3ef 上判定 merge-ready（76/76 脚本断言、A/B 复证通过、第 1 轮的两条 Suggestion 复测均已修复）。针对当前 head 的新一轮运行正在进行，完成后会单独发布报告。
• 仍然卡住门禁的是描述，不是代码。 Stage 1a 模板检查再次未通过——正文没有变化：仍是自由小节（Summary、Root cause、Fix、Changes、Test plan），而不是模板要求的 What this PR does、Why it's needed、Reviewer Test Plan（含 How to verify、Evidence (Before & After)、Tested on）、Risk & Scope、Linked Issues，以及 <details> 折叠块中的中文翻译。内容也已过时：描述的是两文件、+16/−2 的改动和一个 ENOENT 回归测试，而实际落地的是四文件、+191/−9——team_delete 工具现在分别捕获每次清理失败、保留状态复位尾部、并返回明确的失败信息；最终 diff 中已完全没有 ENOENT 特殊处理。

@yiliang114 已存在的 request-changes 评审无法通过 API 编辑，保持原样；本次未提交新评审。请按最终 diff 用模板重写描述，然后再次触发 @qwen-code /triage——这仍是这个 PR 与通过门禁之间唯一剩下的事。

模板：https://github.com/QwenLM/qwen-code/blob/main/.github/pull_request_template.md

— Qwen Code · qwen3.8-max

_{Reviewed at 52e5fe6823b08bc55b69f4d665360b2601f94b2c · re-run with @qwen-code /triage}

[qwen-code-ci-bot]

Partially reviewed — gaps disclosed. Suggestions are inline.

Not explored to full depth (tool budget reached): "agent 6b": did not execute npx vitest run src/tools/team-delete.test.ts in packages/core — the review worktree has no node_modules / dist and installing/building exc….

Not reviewed: reverse audit — stopped before round 6 by the review time budget.

Deferred under the convergence posture (round 4, not a blocker) — recorded, not requested in this round:

• packages/core/src/tools/team-delete.test.ts:102 — [probe] unregisterLeader/disposeInboxLocks reset order unpinned
• packages/core/src/tools/team-delete.test.ts:128 — [probe] deleteTeamDirs argument unpinned by any test
• packages/core/src/tools/team-delete.test.ts:129 — [probe] 250 ms retry delay unpinned by the test suite
• packages/core/src/tools/team-delete.test.ts:101 — [probe] manager.cleanup() head step never asserted
• packages/core/src/tools/team-delete.test.ts:105 — [probe] failure-path returnDisplay shape unpinned

Convergence: round 4 posted 1 inline comment(s), 1 of them reported for the first time; the previous round posted 1 (1 new). Findings keep coming back to the same files: packages/core/src/tools/team-delete.test.ts (findings in round 3; 1 more now). The rate of new findings is not falling. A cluster that keeps producing siblings usually means the fixes are treating instances of a shared root cause — triaging that cause before the next round, or splitting an independent cluster into its own pull request, tends to end the loop faster than fixing them one at a time. Batching the remaining fixes and verifying them before the next push, or dropping this PR's reviews to --severity-floor critical, keeps the loop from re-deriving the same set. No Critical finding is open on this round, so merging and moving the remaining Suggestion threads to a follow-up issue is available as an ending — a merged pull request cannot diverge further. (Observation only — nothing was withheld from this review because of this observation.)

— qwen3.8-max via Qwen Code /review (v0.22.2)

[qwen-code-ci-bot]

No blocking issues. LGTM! ✅

Not explored to full depth (tool budget reached): "agent 3b": none — no check was cut short.; "agent 1a": executing npx vitest run src/tools/team-delete.test.ts to confirm the new assertions go green — the worktree has no node_modules and installing workspace depe….

Deferred under the convergence posture (round 5, not a blocker) — recorded, not requested in this round:

• packages/core/src/tools/team-delete.test.ts:117 — [probe] no test covers first-sweep-succeeds / second-sweep-fails…
• packages/core/src/tools/team-delete.test.ts:130 — [probe] success path never pins the delayed second sweep

— qwen3.8-max via Qwen Code /review (v0.22.2)

[qwen-code-ci-bot]

Reviewed — no blockers.

3 Suggestion-level finding(s) this review confirmed are already reported on this PR and are not repeated:

• R6-1 unhandled deleteTeamDirs throw at the tryReclaimStaleTeam reclaim boundary — already recorded (round 3 deferral list, review 5037349533)
• R6-2 single-error test pins only a message substring, not error identity — already recorded (round 3 deferral list, review 5037349533)
• R6-3 failure-path test leaves disposeInboxLocks/unregisterLeader tail effects unpinned — already recorded (round 4 deferral list, review 5038493373)

Deferred under the convergence posture (round 6, not a blocker) — recorded, not requested in this round:

• packages/core/src/tools/team-delete.ts:126 (+2 locations) — [probe] inline error→string idiom bypasses getErrorMessage's 1000-char llmContent cap

— qwen3.8-max via Qwen Code /review (v0.22.2)

[qwen-code-ci-bot]

Reviewed.

2 Suggestion-level finding(s) this review confirmed are already reported on this PR and are not repeated:

• R6-1 deleteTeamDirs' new throwing contract unguarded at the tryReclaimStaleTeam reclaim boundary — already recorded (round-3 deferral list, review 5037349533; re-recorded round 6, review 5049930567)
• R7-1 deleteTeamDirs argument unpinned by any test — already recorded (round-4 deferral list, review 5038493373)

Not explored to full depth (tool budget reached): "agent 6a": did not run the added/changed vitest suites ( teamHelpers.test.ts , team-delete.test.ts ) — neither the worktree nor the parent checkout has node_modules , an….

Deferred under the convergence posture (round 7, not a blocker) — recorded, not requested in this round:

• packages/core/src/agents/team/teamHelpers.test.ts:53 — [probe] rmMockOverride duplicates the existing __setReadFileHook mechanism and is a hoisting trap
• packages/core/src/agents/team/teamHelpers.test.ts:405 — [probe] no test pins the rm-failure contract at the tryReclaimStaleTeam boundary

— qwen3.8-max via Qwen Code /review (v0.22.2)

[qwen-code-ci-bot]

Reviewed.

1 Suggestion-level finding(s) this review confirmed are already reported on this PR and are not repeated:

• R8-1 deleteTeamDirs throwing contract unguarded at tryReclaimStaleTeam reclaim boundary — already recorded (round-3 deferral list, review 5037349533; re-recorded round 6, review 5049930567; test-gap symptom round 7, review 5052040286)

Not explored to full depth (tool budget reached): "agent 3b": could not execute the two new test files (teamHelpers.test.ts, team-delete.test.ts) — the review worktree and parent checkout have no node_modules, and a full n….

Deferred under the convergence posture (round 8, not a blocker) — recorded, not requested in this round:

• packages/core/src/tools/team-delete.ts:130 — [probe] failure message withholds the manual rm -rf recovery path

— qwen3.8-max via Qwen Code /review (v0.22.2)

[wenshao]

@qwen-code /triage

[qwen-code-ci-bot]

Sandboxed verification: ✅ passed — merge-ready (agent verdict) - workflow run

Ran the PR in an isolated, token-free container: A/B against the base build, mock-free harness assertions, targeted gates. Advisory evidence for human reviewers — not a review, an approval, or a CI check.

Scripted assertions: 173 passed · 0 failed · 173 total

Flakiness gate: ✅ 2 changed test file(s) x 5 identical rounds, no divergence

中文 — 判定：✅ 通过 · 可合入（agent 判定）

沙箱验证在隔离、无凭证的容器中执行了该 PR 的代码（与 base 构建 A/B 对照、无 mock harness 断言、定向门禁）。仅作为评审证据，不构成评审、批准或 CI 检查。

脚本断言：173 通过 · 0 失败 · 173 总计

抖动门：✅ 2 changed test file(s) x 5 identical rounds, no divergence

Verification report

PR #10213 deep verification (follow-up round)

Verdict: ✅ merge-ready — 173/173 scripted assertions passed, 0 unexpected failures.
Verified head: 52e5fe6823b08bc55b69f4d665360b2601f94b2c (HEAD^2), base ad0061442b (HEAD^1).

中文摘要 — 判定：✅ 可合并（merge-ready）

• 结论：核心主张经 A/B 实证成立。base 构建在真实 fs.rm 失败（chmod 0555 → 内核真实 EACCES，非 mock）时，team_delete 仍声称 “Team … deleted.” 且 result.error 为空、磁盘留下孤儿目录（即 issue Agent Team: team_delete can report success after filesystem cleanup fails #10210 的 bug）；head 构建改为返回带 error 的失败结果，消息中保留底层 errno 细节，且团队状态照常重置（会话不会卡死在 “team active”）。
• A/B：7 个场景 × 双臂，见「Central claim and A/B proof」表。base 臂中 4 个标记 BUG 的检查（H1、H2 的吞掉失败，T1 的缺失 error 与虚假成功声明）连同孤儿目录证据在 head 全部翻转为正确行为；正常路径、幂等删除、恢复性二次清扫等等价单元格（H3、H4、T2、T3）双臂一致，无回归。
• 测试有效性：7 个变异体（含“退回 fire-and-forget”“去掉 AggregateError 消息折叠”“detail 置空”等）全部被相应测试以预期断言杀死，0 幸存者；阳性对照同文件同套件变红。
• 上一轮：构建失败（client.telemetrySwap.test.ts TS1117，与本 PR 文件无关，来自当时合并的 main）——新 head 已修复，完整 typecheck 通过（见下方状态表）。
• 未覆盖：逐提交验证（浅克隆仅合并提交可达）、team_create 回收路径端到端（仅静态追踪 + 组件级 A/B）、Windows 语义等，见「Not covered」。
• 发现：1 条低优先级观察（新 throw 同时改变 team_create 回收路径的失败表现，方向与 PR 意图一致，非阻断），1 条对测试计划措辞的更正。

Previous-round finding status (follow-up round)

The previous report (workflow run 33049406541, head at that time pre-dating the
last two origin/main merges) was a build-failure report, re-measured from scratch
at the new head:

#	Previous finding	Severity	Status at new head
1	npm ci failed twice: tsc error TS1117: An object literal cannot have multiple properties with the same name in src/core/client.telemetrySwap.test.ts(103,5) — a file this PR does not touch, pulled in via an earlier merge of origin/main	blocker (build)	fixed — this round's npm ci + npm run build completed at HEAD (the environment this verification ran in), and a full re-measured packages/core typecheck at head exits 0 (logs/gate-tsc-head.txt). The TS1117 region of that file is byte-identical between base and head; the fix arrived via the PR's later origin/main merges (36ba4f45, 52e5fe68), not via the four files this PR changes.

No other findings were carried forward — the previous round reached no behavioral
verification before the build failed.

Central claim and A/B proof

Central claim (the behavior the PR exists to change): when filesystem cleanup
fails with a non-benign error (EACCES, EIO, …), team_delete must not convert it
into a complete-success claim; it must surface the failure with the underlying
errno detail while still resetting team state so the session is not wedged.

Secondary claims: (1) deleteTeamDirs() throws real failures — the raw error
for a single failure, an AggregateError whose .message folds in each member's
message when both fail — while ENOENT stays idempotent via force: true;
(2) the delayed second sweep (the race-catcher for late writeMessage) still runs
after a first-sweep failure, and a retry that succeeds reports genuine success.

The A/B was run mock-free: failure injected with chmod 0555 on the team/tasks
dirs (the harness runs as uid 1000, so the kernel genuinely denies the unlinks),
paths redirected via the QWEN_HOME configuration seam, both arms driving the
compiled dist/ output. Witness images: 01-ab-base-claims-success-despite-orphans.png
(base) and 02-ab-head-surfaces-failure-and-resets-state.png (head); raw logs in
logs/ab-base.txt, logs/ab-head.txt.

Cell	Scenario (real fs)	Base (control)	Head
H1	deleteTeamDirs, both dirs protected	resolves (bug) — both dirs orphaned	rejects AggregateError, 2 members, member messages folded into .message; dirs orphaned
H2	only team dir protected	resolves (bug) — team dir orphaned	rejects the raw EACCES error (not aggregated); team dir orphaned, tasks dir deleted
H3	happy path	resolves, dirs deleted	resolves, dirs deleted (parity)
H4	dirs absent	resolves	resolves (validates removing the ENOENT special case: force:true already covers it)
T1	team_delete tool, cleanup fails	result.error undefined, llmContent claims deleted. while dirs remain — issue #10210's exact shape	result.error set; cleanup failed + EACCES: permission denied in both llmContent and error.message; no deleted. claim; setTeamManager(null)/setTeamContext(null) still called; dirs orphaned
T2	tool, perms restored at +120 ms (between the sweeps)	success	success — delayed second sweep deleted the dirs after recovery; state reset
T3	tool, happy path	success	success (parity)

Counts: base arm 26/26 scripted cell checks (bug reproduced as predicted), head arm
35/35. The four BUG-labelled base checks (H1 and H2 swallowed rejections; T1 missing
result.error and the false deleted. claim) plus their orphan-dir evidence all
flip to correct behavior at head; every parity cell (H3, H4, T2, T3) holds on both
arms.

Corrections

• The PR's test plan cites "pre-existing gitIgnoreParser/schemaValidator errors"
  in core typecheck. Those are install artifacts, not code errors: they appear
  only when the nested packages/core/node_modules (npm's conflict-nested otel/ajv/
  ignore/mime/fdir set) is absent — I reproduced exactly that error set by building
  the base worktree before linking the dependency dirs. With the full install this
  round, packages/core typechecks clean, exit 0. No code change needed; this
  corrects the test-plan description, not the code.

Findings

1. (low, informational) The new throw reaches a second consumer: team_create's
stale-reclaim path. deleteTeamDirs() is also called, unwrapped, by
tryReclaimStaleTeam() (both call sites, teamHelpers.ts lines ~326 and ~371),
which team-create.ts calls inside its EEXIST handler. A real fs failure during
reclaim now throws out of team_create.execute(); the scheduler's exception path
(coreToolScheduler.ts, TOOL_SPAN_STATUS_TOOL_EXCEPTION handling at ~L5831)
converts it into an error tool result — no crash, no wedged state (no Config state
is set that early). Pre-PR the same scenario either threw EEXIST from the retried
create (config survived) or silently proceeded leaving an orphaned tasks dir
(config deleted, tasks rm failed) — the very hazard this PR fights. So the effect
is intent-aligned and arguably an improvement, but the PR description only names
team_delete; the reviewer should know a second tool's failure surface changed.
Established by the A/B proof that deleteTeamDirs throws + static trace of the two
unwrapped call sites; a full team_create E2E was not budgeted (see Not covered).

Mutation matrix (vacuity proof, 0 survivors)

Controls unmutated: teamHelpers.test.ts 52/52, team-delete.test.ts 7/7 green.
Each mutant was applied to source, run via vitest, and restored (git status clean after).
Witness: 03-mutation-matrix-all-guards-pinned.png; per-mutant logs logs/m1..m7*.txt.

Mutant	Guard under test	Result	Failing assertion (as printed)
M1 revert to fire-and-forget allSettled (base behavior)	the whole fix	3 red / 49 green	expected undefined to be an instance of AggregateError; promise resolved "undefined" instead of rejecting
M2 drop member-message fold	AggregateError .message detail	1 red / 51 green	expected '' to contain 'permission denied'
M3 always throw errors[0] (no aggregate path)	aggregation	2 red / 50 green — single-error test stays green (matrix discriminates)	expected Error: permission denied … to be an instance of AggregateError
M4 remove failure-result branch	tool surfacing	1 red / 6 green	expected undefined to be defined (result.error)
M5 first sweep rethrows (no retry, no state reset)	two-sweep structure	2 red / 5 green	both failure-path tests — execute() throws, session would wedge
M6 detail = ''	errno survives into message	1 red / 6 green	expected 'Team "my-team" was torn down, but filesystem cleanup failed: . …' to contain 'EACCES: permission denied'
M7 generic error.message, detailed llmContent	detail on error.message too	1 red / 6 green	expected 'cleanup failed: generic error' to contain 'EACCES: permission denied'

Positive controls landed in the same file as each mutant: M1 red in
teamHelpers.test.ts, M4 red in team-delete.test.ts — the chosen vitest commands
provably collect the mutated files. Every red run failed the intended behavioral
assertion (quoted above), never an import/fixture break.

Targeted gates

• teamHelpers.test.ts 52/52, team-delete.test.ts 7/7 (unmutated head).
• Adjacent suites exercising the changed surface and its consumers:
  team-create.test.ts, team-create-reclaim-race.test.ts, team-lifecycle.test.ts,
  mailbox.test.ts — 38/38 green.
• packages/core full typecheck: exit 0 at head (the gate that failed last
  round), liveness-proven (planted TS2322 caught, probe removed).
• ESLint on all four changed files: clean, liveness-proven (planted
  no-explicit-any violation caught, probe removed).
• Sibling sweep for the bug class (discarded allSettled results): the two other
  team-area sites — InProcessBackend.waitForAll and TeamManager pending-work
  drain — are completion-waits where individual failures carry no orphanable state;
  neither matches the hazard this PR fixes. No further discarded-results cleanup
  sites found in the team subsystem.

Not covered

• Per-commit verification: the checkout is depth 2 (shallow); metadata lists 9
  commits but only the merge commit is reachable (git rev-list --count HEAD^1..HEAD^2
  = 1 at a shallow boundary). The aggregate HEAD^1..HEAD diff was verified;
  per-commit attribution was out of reach.
• Trial merge into current main: no network in this sandbox. Drift risk is
  minimal — the head commit is itself an origin/main merge dated 2026-08-28 and
  the base is that main's tip.
• team_create reclaim failure end-to-end (Finding 1): established by A/B at
  the deleteTeamDirs level plus static trace, not a full tool E2E.
• TUI rendering of the failure result: verified at the ToolResult boundary
  (llmContent/error.message, which the scheduler surfaces); renderer pixel
  output out of scope.
• T2 recovery cell uses a 120 ms chmod timer inside the 250 ms sweep window —
  deterministic pinning of the two-sweep invariant lives in the unit test; on an
  extremely loaded runner the cell could degrade to "both sweeps succeed" (still a
  passing, correct outcome, weaker as recovery evidence).
• Windows EACCES semantics; TeamManager suites and repo-wide tests (PR's own CI
  covers them); the String(e) fallback for non-Error rejections (real fs always
  rejects with Error).

Methodology

Ran in the CI verify container (node:22-bookworm, node v22.23.2, uid 1000) with
npm ci + npm run build already completed at HEAD. A/B harness
(ab-team-delete.mjs) drives the compiled dist/ of each arm with no mocks:
QWEN_HOME redirects ~/.qwen, and chmod 0555 on the team/tasks dirs produces real
kernel EACCES for the non-root process. The base control was built in
git worktree tmp/base-tree HEAD^1; its first build failed only because a fresh
worktree lacks npm's nested packages/core/node_modules (otel/ajv/ignore set) —
expected, since packages/core declares no @qwen-code/* dependencies and the PR
leaves package-lock.json untouched, so the identical dependency dirs were linked
in and the build re-run to exit 0 (logs/base-build2.log). Control purity asserted:
readlink -f of the base dist resolves inside the base tree, the base dist contains
the fire-and-forget allSettled and neither AggregateError nor fsCleanupError,
and no @qwen-code/* symbol appears anywhere in the harness's import closure.
Mutations were applied to source with the edit tool, run via
npx vitest run <file> from packages/core, and restored with git checkout --
(git status clean at the end; the only scratch artifacts live under
tmp/pr10213-verify-20260829-055448/). After the A/B cells were captured the base
worktree was removed (git worktree remove --force tmp/base-tree); the two
control-purity checks in tally-assertions.mjs read that tree's dist/ and are
recorded here from logs/tally.txt — re-running them would need the worktree
re-created. tally-assertions.mjs otherwise re-checks every log and emits the
assertion accounting (witness 04-final-tally-all-green.png). Raw per-cell stdout,
gate logs, and build logs live in logs/.

Flakiness gate log

rounds=5 files=2 skipped=0
file packages/core/src/agents/team/teamHelpers.test.ts: (cd packages/core) npx --no-install vitest run ./src/agents/team/teamHelpers.test.ts
file packages/core/src/tools/team-delete.test.ts: (cd packages/core) npx --no-install vitest run ./src/tools/team-delete.test.ts


per-file results (P=pass F=fail I=infra-exit, one letter per run):
  packages/core/src/agents/team/teamHelpers.test.ts: PPPPP
  packages/core/src/tools/team-delete.test.ts: PPPPP

verdict: pass
summary: 2 changed test file(s) x 5 identical rounds, no divergence

--- per-invocation detail (full copy in the artifact) ---
round 1 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 1 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 2 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 2 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 3 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 3 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 4 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 4 · packages/core/src/tools/team-delete.test.ts: P (exit 0)
round 5 · packages/core/src/agents/team/teamHelpers.test.ts: P (exit 0)
round 5 · packages/core/src/tools/team-delete.test.ts: P (exit 0)

Evidence images

Harness scripts and raw logs are in the workflow run artifacts (7-day retention).

— Qwen Code · sandboxed verification

[qwen-code-ci-bot]

Triage re-run completed without a new review.

⚠️ The bot's only review on 52e5fe6823b08bc55b69f4d665360b2601f94b2c is a COMMENTED one, which carries no vote — so it has no verdict of its own on this commit, and main needs two approving reviews: an approval left by another account is a separate vote and does not count as the bot's own. Two different things look like this, and the stage-3 comment above says which: the triage skill deferring on purpose at 3/5 — a fork refactor hitting the approval guardrail, or a core change escalated for maintainer awareness, both normal outcomes — or an earlier approval that a push dismissed, leaving only the comment behind, which needs a fresh review.

⚠️ 机器人在 52e5fe6823b08bc55b69f4d665360b2601f94b2c 上唯一的评审是 COMMENTED，不带票 —— 因此它在该 commit 上没有自己的裁决，而 main 需要两个批准（其他账号的批准是另一张票）。有两种情况长这样，上方的 stage-3 评论会说明是哪一种：triage skill 在 3/5 时有意 defer（fork refactor 命中审批护栏，或核心改动被升级交由维护者把关，两者都是正常结果）；或者更早的批准被一次推送作废、只剩下这条评论，此时需要重新评审。

The stage comments above were updated with the latest result. View workflow run.

上方各阶段评论已更新为最新结果。查看工作流运行。

[wenshao]

Maintainer verification — local real-environment A/B (no fs mocks)

Verdict: LGTM. The central claim holds end-to-end: on main the tool tells the model Team "x" deleted. while the team directory is demonstrably still on disk; with this PR it reports the failure with the errno and the exact surviving path, and the session is not wedged. Every hunk of the diff is load-bearing under mutation, and the happy path and the transient-failure path are byte-identical to main.

Two non-blocking items below (one behaviour change at a different call site, one formatting nit), plus a stale PR description.

Verified head: merge 85dc82e3f1 (PR head 52e5fe6823, base ad0061442b) — 4 files, +191/−9.

How this was verified

Everything below runs real code against a real filesystem. No vi.mock, no fake fs. Failures are produced by the kernel:

technique	what it produces
chmod 555 on the team / tasks dir, probe runs as uid 1000 via setpriv	genuine EACCES on unlink / rmdir
chattr +i on a stray file inside the dir	genuine non-ENOENT failure that root cannot bypass
release the lock 100 ms into the call	a transient failure that the 250 ms second sweep can still recover from

Four layers, each A/B'd between the merge-base source and the PR source (same worktree, only the two changed source files swapped):

1. deleteTeamDirs() directly;
2. the real TeamDeleteTool(...).build({}).execute() (only Config/TeamManager — the callers — are doubled);
3. the real TeamCreateTool(...).execute() through tryReclaimStaleTeam();
4. the shipped binary: node dist/cli.js -p … built from each arm, driven by a scripted fake OpenAI endpoint that calls team_create then team_delete. The final model turn echoes back verbatim the tool result it received, so the screenshot shows exactly what the model was told.

1. The bug, and the fix, through the real CLI

The harness makes the team dir read-only between the two tool calls (synchronised on the request that carries the team_create result, so team_create itself is untouched).

base claims complete success with config.json still on disk — issue #10210, reproduced end-to-end through the shipped binary rather than by source reading. head reports the failure with EACCES and the exact path.

2. Fault matrix — helper and tool boundary

Points worth calling out:

• B3 — when both removals fail, the AggregateError carries 2 members and both errno+path strings are folded into .message. That matters: a serializer that reads only .message/.stack never sees .errors.
• C1 / C5 identical on both arms — the fix does not over-report. A failure that clears before the 250 ms second sweep still returns a plain success, and the directories really are gone. This is the behaviour the two separate try/catch blocks exist to preserve.
• state reset ran = yes in every cell on both arms — the round-1 "throw wedges the session" concern is not reachable at this head. setTeamManager(null) / setTeamContext(null) execute even when cleanup fails, and execute() never rejects.

3. Mutation matrix — is the diff load-bearing?

Six mutants of the PR's own diff, each run through the same real-fault cells:

All six are killed. Notably m2 (one try/catch spanning both sweeps) and m3 (surface the first sweep's error) both turn the transient cell into a false failure — so the per-sweep wrapping and the "only the final sweep decides" rule are each genuinely load-bearing, not stylistic.

4. Gates and reverse A/B

Reverting only the source and keeping the PR's test files fails exactly the 5 new tests and nothing else — every new test pins real behaviour.

---

Finding 1 (Suggestion, non-blocking) — the other two deleteTeamDirs() call sites are unguarded

deleteTeamDirs() has three callers. This PR guards one of them (team_delete). The other two are inside tryReclaimStaleTeam() (teamHelpers.ts:324 and :333), reached from team_create when a name was stranded by a crashed session — and the new throwing contract propagates straight out of TeamCreateInvocation.execute().

Measured with the real TeamCreateTool against a stale team dir:

• D2 is a real behaviour change: an undeletable stray inside the team dir (while config.json itself is removable) used to be swallowed, and team_create succeeded. Now the raw fs error escapes execute() as a rejection instead of a ToolResult, so the caller gets an unhandled-exception style error rather than team_create's own message ("…already exists and appears to be owned by a live qwen-code session… rm -rf "<teamDir>" "<tasksDir>""), which is precisely the recovery hint this situation needs. It self-heals: attempt 2 succeeds, because config.json was already removed by the failed sweep.
• D3 / D4 are the opposite: both arms fail, but base fails later — inside resetTaskList(), after it has already written the new config.json, leaving a half-created team on disk (verified by reading leadSessionId back from the file). head fails earlier and leaves nothing behind, and D4's AggregateError names both directories. Here the PR is strictly better.

So the fix isn't wrong at this call site, it's just incomplete. A best-effort wrapper keeps the reclaim path's original semantics while retaining the new contract where it matters:

// teamHelpers.ts — tryReclaimStaleTeam
// Cleanup here is best-effort: the caller only needs to know whether the
// name can be reused. Let team_create surface its own recovery message
// instead of leaking a raw fs error out of execute().
try {
  await deleteTeamDirs(teamName);
} catch (err) {
  debug.warn('Stale-team reclaim cleanup failed:', err);
  return false;
}
return true;

Fine as a follow-up if you'd rather keep this PR at its current scope — the shape is narrow and self-healing.

Nice-to-have

• prettier --check fails on teamHelpers.test.ts (the merge-base version of the file is clean). The actual → original rename pushed type ReadFileHook = (...) past 80 columns. npm run format fixes it. CI runs prettier --write . with no diff guard, so this will not turn CI red — it just lands unformatted.
• The PR description is stale. It still describes the original two-file, +16/−2 change and an ENOENT-continue branch that no longer exists in the diff; the Test plan checklist references a removed test. What actually landed is 4 files, +191/−9, including the team_delete tool wrapper and the AggregateError handling. Worth refreshing against the final diff (and the repo template) before merge.

Environment

Linux 6.12 / Node v22.22.2, local worktree of the merge commit. Probes drive the real TypeScript sources via tsx; the layer-4 arm runs npm run build + npm run bundle per arm and executes node dist/cli.js. Fault injection: chmod 555 + setpriv --reuid=1000, and chattr +i. Nothing in the qwen-code source was modified other than swapping teamHelpers.ts / team-delete.ts between the two arms.

中文版

维护者验证 —— 本地真实环境 A/B（无 fs mock）

结论：LGTM。 核心主张端到端成立：在 main 上，工具会告诉模型 Team "x" deleted.，而 team 目录明确仍然留在磁盘上；应用本 PR 后，工具会带上 errno 和确切的残留路径报告失败，并且会话不会被卡死。diff 的每一处改动在变异测试下都是承重的；happy path 与"瞬时故障"路径与 main 完全一致。

下面有两条非阻塞项（一条是另一个调用点的行为变化，一条是格式 nit），外加一条过期的 PR 描述。

验证 head：merge 85dc82e3f1（PR head 52e5fe6823，base ad0061442b）—— 4 个文件，+191/−9。

验证方式

以下全部是真实代码 + 真实文件系统，没有 vi.mock，没有假 fs。故障由内核产生：

手段	产生的错误
对 team / tasks 目录 chmod 555，探针通过 setpriv 以 uid 1000 运行	真实的 unlink / rmdir EACCES
对目录内一个多余文件 chattr +i	真实的非 ENOENT 失败，root 也绕不过
调用开始后 100 ms 解除锁定	瞬时故障，250 ms 的第二次清扫仍可恢复

四层，每层都在 merge-base 源码与 PR 源码之间做 A/B（同一个 worktree，只交换两个被改动的源文件）：

1. 直接调用 deleteTeamDirs()；
2. 真实的 TeamDeleteTool(...).build({}).execute()（只有 Config/TeamManager 这些调用方是替身）；
3. 真实的 TeamCreateTool(...).execute()，经由 tryReclaimStaleTeam()；
4. 发布产物本身：每个 arm 各自构建 node dist/cli.js -p …，由脚本化的假 OpenAI 端点驱动模型先调 team_create 再调 team_delete。模型最后一轮把收到的工具结果原样回显，因此截图展示的就是模型实际被告知的内容。

1. 通过真实 CLI 复现 bug 与验证修复

harness 在两次工具调用之间把 team 目录改为只读（以携带 team_create 结果的那次请求为同步点，因此 team_create 本身不受影响）。

base 在 config.json 仍在磁盘上的情况下声称完整成功 —— issue #10210 被端到端复现（而非仅靠源码阅读推断）。head 带 EACCES 和确切路径报告失败。

2. 故障矩阵 —— helper 层与工具边界

• B3 —— 两个删除都失败时，AggregateError 带 2 个成员，并且两条 errno+路径信息都被折叠进 .message。这一点很重要：只读 .message/.stack 的序列化器永远看不到 .errors。
• C1 / C5 在两个 arm 上完全一致 —— 修复没有过度报错。在 250 ms 第二次清扫之前恢复的故障仍然返回普通成功，且目录确实已删除。这正是两个独立 try/catch 要保住的行为。
• 每个 cell、两个 arm 的 state reset 都是 yes —— round-1 提出的"抛异常导致会话卡死"在当前 head 不可达：即使清理失败，setTeamManager(null) / setTeamContext(null) 照常执行，execute() 从不 reject。

3. 变异矩阵 —— diff 是否每一处都承重？

对 PR 自身 diff 构造了 6 个变异体，跑同一组真实故障 cell，全部被杀死。其中 m2（一个 try/catch 包住两次清扫）和 m3（上报第一次清扫的错误）都会把瞬时故障变成误报失败 —— 所以"逐次清扫单独包裹"和"只由最后一次清扫决定"这两条规则都是真正承重的，而非风格问题。

4. 门禁与反向 A/B

只回退源码、保留 PR 的测试文件，恰好失败这 5 个新增测试，其余全过 —— 每个新测试都钉住了真实行为。

---

发现 1（Suggestion，非阻塞）—— deleteTeamDirs() 的另外两个调用点没有被保护

deleteTeamDirs() 有三个调用者。本 PR 保护了其中一个（team_delete）。另外两个在 tryReclaimStaleTeam() 内（teamHelpers.ts:324 与 :333），由 team_create 在名字被崩溃会话占用时触发 —— 新的"会抛异常"契约会直接穿透 TeamCreateInvocation.execute()。

用真实 TeamCreateTool 对着"被死会话遗留的 team 目录"实测：

• D2 是一处真实行为变化：team 目录内有一个删不掉的多余文件（而 config.json 本身可删）时，以前会被吞掉，team_create 成功。现在原始 fs 错误以 rejection 形式逃出 execute() 而非走 ToolResult，调用方拿到的是"未处理异常"风格的错误，而不是 team_create 自己的提示（"…already exists and appears to be owned by a live qwen-code session… rm -rf "<teamDir>" "<tasksDir>""）—— 而后者恰恰是这种情况最需要的恢复指引。它可自愈：第 2 次尝试成功，因为失败的那次清扫已经删掉了 config.json。
• D3 / D4 则相反：两个 arm 都失败，但 base 失败得更晚 —— 在 resetTaskList() 里，此时它已经写入了新的 config.json，磁盘上留下一个"半创建"的 team（通过回读文件里的 leadSessionId 证实）。head 更早失败，什么都没留下，且 D4 的 AggregateError 同时点名两个目录。这里 PR 严格更优。

所以这个修复在该调用点不算错，只是不完整。一个 best-effort 包装即可保住 reclaim 路径原有语义，同时在真正需要的地方保留新契约（代码见英文版）。

如果希望保持本 PR 的现有范围，作为 follow-up 处理也完全可以 —— 触发形态很窄且能自愈。

建议（Nice-to-have）

• prettier --check 在 teamHelpers.test.ts 上不通过（该文件的 merge-base 版本是干净的）。actual → original 的重命名把 type ReadFileHook = (...) 顶过了 80 列。npm run format 即可修复。CI 跑的是 prettier --write . 且没有 diff 守卫，因此不会让 CI 变红 —— 只是会以未格式化的形态合入。
• PR 描述已过期：仍在描述最初的两文件 +16/−2 改动，以及一个 diff 里已不存在的 ENOENT-continue 分支；Test plan 勾选项引用了一个已被删除的测试。实际落地的是 4 个文件 +191/−9，包含 team_delete 工具层包装与 AggregateError 处理。建议按最终 diff（以及仓库模板）刷新后再合入。

环境

Linux 6.12 / Node v22.22.2，merge commit 的本地 worktree。探针通过 tsx 直接驱动真实 TypeScript 源码；第 4 层每个 arm 各自执行 npm run build + npm run bundle 并运行 node dist/cli.js。故障注入：chmod 555 + setpriv --reuid=1000，以及 chattr +i。除了在两个 arm 之间交换 teamHelpers.ts / team-delete.ts 外，未修改 qwen-code 的任何源码。

[wenshao]

@qwen-code /triage

[qwen-code-ci-bot]

Re-run after @wenshao's review + approval. Gate result: pass, with one hygiene item carried forward.

Template: the description still doesn't follow the template — free-form Summary / Root cause / Fix / Changes / Test plan sections instead of the required ones — and it is stale: it describes the original two-file, +16/−2 change with an ENOENT-continue branch, while what actually landed is four files, +191/−9 with no ENOENT special case. A fresh run stops here (Stage 1a); this re-run does not, for two reasons: the author is a packages/core code owner, and maintainer @wenshao reviewed the final diff, ran an independent real-environment A/B verification against exactly this head, approved, and re-triggered triage. The template exists to give reviewers what they need to judge a change — that purpose was superseded by a direct human review and verification. Refreshing the description against the final diff remains worth doing (@yiliang114), non-blocking.

Problem: real, and now demonstrated end-to-end. #10210 was triaged and confirmed in source — deleteTeamDirs() discarded its Promise.allSettled results, so team_delete reported complete success while directories remained on disk. The maintainer verification reproduces it through the shipped binary: base claims Team "x" deleted. with config.json still on disk; head reports EACCES and the surviving path.

Direction: aligned — failure propagation instead of silently claimed success, in the multi-agent team area (roadmap/multi-agent, welcome-pr issue).

Size: core paths touched. 66 production logic lines across teamHelpers.ts + team-delete.ts, 134 test lines, no generated/schema files — well under every threshold; author is a core code owner.

Approach: minimal and the right shape. The helper inspects the settled results (single error re-thrown as-is; both-fail folded into an AggregateError whose message carries each member's errno/path). The tool wraps each sweep separately so a first-sweep failure cannot skip the delayed race-catcher sweep, only the final sweep decides, and the state-reset tail runs unconditionally. No unrelated changes.

Risk: no elevated-risk signals (no high-risk path matches).

Moving on to code review. 🔍

中文说明

在 @wenshao 审查并批准后的重跑。门禁结果：通过，附带一条延续的卫生项。

模板：描述仍不符合模板——自由小节（Summary / Root cause / Fix / Changes / Test plan）而非模板要求的结构——且已过期：描述的是最初两文件、+16/−2、带 ENOENT-continue 分支的版本，而实际落地的是四文件、+191/−9，最终 diff 中已无 ENOENT 特殊处理。首次运行会在此停止（Stage 1a）；本次重跑不停，原因有二：作者是 packages/core 的 code owner，且维护者 @wenshao 已审查最终 diff、在完全相同的 head 上独立完成了真实环境 A/B 验证、批准并重新触发了 triage。模板的作用是为审查者提供判断所需的材料——这一目的已被直接的人工审查与验证所替代。按最终 diff 刷新描述仍值得做（@yiliang114），非阻塞。

问题：真实存在，且已被端到端证明。#10210 经过 triage 并在源码中确认——deleteTeamDirs() 丢弃了 Promise.allSettled 的结果，导致目录仍留在磁盘上时 team_delete 却报告完整成功。维护者验证通过发布产物复现：base 在 config.json 仍在磁盘上时声称 Team "x" deleted.；head 报告 EACCES 与残留路径。

方向：对齐——用失败上报代替静默声称成功，位于多智能体团队领域（roadmap/multi-agent、welcome-pr issue）。

规模：触及核心路径。生产逻辑 66 行（teamHelpers.ts + team-delete.ts），测试 134 行，无生成/schema 文件——远低于所有阈值；作者是核心 code owner。

方案：最小且形状正确。helper 检查 settled 结果（单个错误原样重抛；双失败折叠为 AggregateError，其 message 携带每个成员的 errno/路径）。工具层逐次清扫单独包裹，第一次清扫失败不会跳过错后的竞态补救清扫，只由最后一次清扫定成败，状态复位尾部无条件执行。无无关改动。

风险：无升级风险信号（未命中高风险路径）。

进入代码审查。🔍

— Qwen Code · qwen3.8-max

_{Reviewed at 52e5fe6823b08bc55b69f4d665360b2601f94b2c · re-run with @qwen-code /triage}

[qwen-code-ci-bot]

Code review

Reviewed the full diff independently. No blockers — the implementation matches what I would have proposed from the issue alone, and the earlier review rounds converged (all seven prior findings, including the round-1 Critical "throw wedges the session", are resolved in the current diff).

A few details that look subtle but are genuinely load-bearing:

• Per-sweep try/catch, final sweep decides. The first sweep's failure is logged and retried after the 250 ms delay; only a final-sweep failure is surfaced. This keeps transient failures transient — @wenshao's mutation matrix confirms the two mutants that collapse the sweeps into one catch, or surface the first sweep's error, both turn the recovered-fault case into a false failure.
• AggregateError folds member messages into .message. Serializers that only read .message/.stack (debug logs, tool-result forwarding) never see .errors, so the per-directory errno/path detail survives.
• The state-reset tail runs unconditionally, and the failure return follows the file's existing { llmContent, returnDisplay, error: { message } } convention; execute() never rejects.

Tests pin the issue's invariant at both boundaries — helper level (mocked fs.rm with EACCES/EIO/mixed failure) and tool level (state reset still runs, result reports failure, never claims deleted.). Reverting only the source makes the five new tests and nothing else fail (the maintainer's reverse A/B).

Non-blocking items already on record (not new findings):

1. The new throwing contract is unguarded at the two deleteTeamDirs() call sites in tryReclaimStaleTeam() (teamHelpers.ts). Measured by @wenshao: the practical shape (an undeletable stray file inside a stale team dir) self-heals on the retried create, and the PR is strictly better than base on the both-fail shapes. Fine as a follow-up — a best-effort wrapper is sketched in his comment.
2. prettier --check fails on the renamed ReadFileHook line in teamHelpers.test.ts (>80 columns). CI runs prettier --write . without a diff guard, so this will not turn CI red — a npm run format pass before merge keeps the tree clean.

Testing evidence

Local-invocation run. The gate never executes PR-derived code (standing rule), so this run's live-behaviour evidence is the PR's own CI at the reviewed head plus the maintainer's real-environment verification — the trigger condition (a non-ENOENT fs.rm rejection) requires kernel-level fault injection, which is exactly what that verification did. No tmux capture was driven by triage for the same reason; the substitution is named here, not papered over.

Check	Conclusion
Test (ubuntu-latest, Node 22.x)	✅ success
Desktop Shell (ubuntu-22.04)	✅ success
Desktop Shell (windows-2022)	✅ success
web-shell E2E Smoke (ubuntu-latest, Node 22.x)	✅ success
Integration Tests (no-AK, No Sandbox)	✅ success
Dependency CVE audit	✅ success
Secret scan (TruffleHog)	✅ success
Test (macos-latest / windows-latest, Node 22.x)	⏭️ skipped (fork PR, as usual)

All checks completed at 52e5fe68; zero pending pull_request workflow runs.

• Real-environment A/B (maintainer-verified — attributed evidence, not re-run by triage): @wenshao drove four layers against a real filesystem — bare helper, real tool execute(), the real team_create reclaim path, and the shipped dist/cli.js driven by a scripted model endpoint — A/B between merge-base and PR sources, faults produced by the kernel (chmod 555 + setpriv for genuine EACCES, chattr +i, and a released lock for the transient case). On base the tool claims complete success with the directory still on disk; with this PR it reports the errno and the exact surviving path, and the session is not wedged. All six mutants of the diff were killed. Full report in his comment above.
• Sandboxed /verify: an earlier run judged this PR merge-ready at 6bdce3ef (76/76 scripted assertions, A/B re-proven). A fresh run against the current head started earlier today is still in progress and will post its own report.

中文说明

代码审查

独立审阅了完整 diff。无阻塞项——实现与仅从 issue 出发我会提出的方案一致，此前的审查轮次已收敛（先前全部 7 条 findings，包括第 1 轮的 Critical"抛异常导致会话卡死"，均已在当前 diff 中解决）。

几处看似细微、实则承重的设计：

• 逐次清扫单独 try/catch，只由最后一次清扫定成败。 第一次清扫失败仅记录日志，250 ms 延迟后重试；只有最后一次清扫失败才上报。瞬时故障因此保持瞬时——@wenshao 的变异矩阵证实：把两次清扫合并进一个 catch、或上报第一次清扫错误的两个变异体，都会把"已恢复的故障"变成误报失败。
• AggregateError 把成员信息折叠进 .message。 只读 .message/.stack 的序列化器（调试日志、工具结果转发）永远看不到 .errors，逐目录的 errno/路径细节因此得以保留。
• 状态复位尾部无条件执行，失败返回遵循该文件现有的 { llmContent, returnDisplay, error: { message } } 约定；execute() 从不 reject。

测试在两个边界钉住了 issue 的不变量——helper 层（mock fs.rm：EACCES/EIO/混合失败）与工具层（状态复位仍然执行、结果报告失败、绝不声称 deleted.）。只回退源码会恰好失败这 5 个新测试、其余全过（维护者的反向 A/B）。

已在案的非阻塞项（非新发现）：

1. 新的"会抛异常"契约在 tryReclaimStaleTeam()（teamHelpers.ts）的两处 deleteTeamDirs() 调用点未加防护。@wenshao 实测：实际触发形态（陈旧 team 目录内有一个删不掉的文件）可在重试创建时自愈；双失败形态下本 PR 严格优于 base。作为 follow-up 处理即可——他的评论中给出了 best-effort 包装的草稿。
2. prettier --check 在 teamHelpers.test.ts 重命名后的 ReadFileHook 行（超过 80 列）上不通过。CI 跑 prettier --write . 且无 diff 守卫，不会让 CI 变红——合入前跑一次 npm run format 即可。

测试证据

本地调用运行。门禁从不执行 PR 派生代码（既定规则），因此本次运行的实运行证据是：被审 head 上 PR 自己的 CI，外加维护者的真实环境验证——触发条件（非 ENOENT 的 fs.rm 拒绝）需要内核级故障注入，而该验证恰恰做到了这一点。基于同样原因，triage 未驱动 tmux 捕获；此处明确说明这一替代，不做掩饰。

CI 表格见上方标记区域：52e5fe68 上所有检查完成，全部通过（macOS/Windows 测试按惯例在 fork PR 上跳过），无未完成的 pull_request 工作流运行。

• 真实环境 A/B（维护者验证——转述证据，非 triage 重跑）：@wenshao 在真实文件系统上驱动了四层——裸 helper、真实工具 execute()、真实 team_create 回收路径、以及由脚本化模型端点驱动的发布产物 dist/cli.js——在 merge-base 与 PR 源码之间 A/B，故障由内核产生（chmod 555 + setpriv 产生真实 EACCES、chattr +i、以及解除锁定产生瞬时故障）。base 在目录仍在磁盘上时声称完整成功；本 PR 报告 errno 与确切的残留路径，且会话不被卡死。diff 的全部 6 个变异体均被杀死。完整报告见上方他的评论。
• 沙箱 /verify：较早一次运行在 6bdce3ef 上判定 merge-ready（76/76 脚本断言，A/B 复证通过）。今天早些时候针对当前 head 的新一轮运行仍在进行，完成后会单独发布报告。

— Qwen Code · qwen3.8-max

_{Reviewed at 52e5fe6823b08bc55b69f4d665360b2601f94b2c · re-run with @qwen-code /triage}

[qwen-code-ci-bot]

Confidence: 4/5 — clean across every stage; what keeps this from a 5 is the stale description and two recorded non-blocking follow-ups, none of which block.

This one went through the full wringer and came out clean: eight review rounds that converged (the round-1 Critical — a cleanup throw wedging the session in "team active" — is unreachable at this head), a sandboxed /verify merge-ready verdict on the pre-final head, fully green CI at the reviewed head, and an independent real-environment A/B by @wenshao against exactly this commit — faults injected at the kernel level, four layers deep including the shipped binary, all six mutants of the diff killed. My own pass over the diff found nothing new: every hunk earns its place, the failure return follows the file's own conventions, and the tests pin both of the issue's invariants (no false success, no wedged session).

The one item the gate kept flagging — the description — is real but is hygiene at this point: it doesn't follow the template and describes the first revision rather than the final diff. The author is a core code owner and the approving maintainer reviewed the actual diff directly, so I'm recording the refresh request without holding the PR over it.

Approving, pinned to the reviewed commit. Follow-ups worth tracking: the best-effort guard at the two tryReclaimStaleTeam call sites, a npm run format pass on teamHelpers.test.ts, and refreshing the PR description against the final diff.

中文说明

置信度：4/5 —— 每个阶段都干净；没到 5 是因为过期的描述和两条已记录的非阻塞后续项，均不构成阻塞。

这个 PR 经受了完整考验且结果干净：八轮审查收敛（第 1 轮的 Critical——清理抛异常把会话卡死在 "team active"——在当前 head 已不可达），沙箱 /verify 在倒数第二个 head 上判定 merge-ready，被审 head 上 CI 全绿，@wenshao 在完全相同的 commit 上独立完成真实环境 A/B——内核级故障注入、四层驱动直至发布产物、diff 的全部 6 个变异体均被杀死。我自己的审查没有新发现：每一处改动都承重，失败返回遵循该文件自身的约定，测试钉住了 issue 的两个不变量（不误报成功、不卡死会话）。

门禁反复标记的那一项——描述——是真实的，但目前只是卫生问题：不符合模板，且描述的是第一版而非最终 diff。作者是核心 code owner，批准的维护者直接审查了实际 diff，因此只记录"刷新描述"的请求，不以此卡住 PR。

批准，锚定在被审 commit。值得跟踪的后续项：tryReclaimStaleTeam 两处调用点的 best-effort 防护、对 teamHelpers.test.ts 跑一次 npm run format、按最终 diff 刷新 PR 描述。

— Qwen Code · qwen3.8-max

_{Reviewed at 52e5fe6823b08bc55b69f4d665360b2601f94b2c · re-run with @qwen-code /triage}

[qwen-code-ci-bot]

LGTM, looks ready to ship. ✅

Superseded by the re-run on 2026-08-29: the template concern itself stands (the description is still non-template and stale — recorded in the stage comments, worth refreshing before merge), but the gate no longer blocks on it. The author is a packages/core code owner, and maintainer @wenshao reviewed the final diff, verified it end-to-end in a real environment at exactly this head, and approved. The commit-pinned approval (review 5057169479) supersedes this request-changes.

[qwen-code-ci-bot]

Sandboxed verification: ⚠️ not run — skipped - workflow run

Skipped because the PR is not open for verification (state=MERGED, draft=false).

中文 — 判定：⚠️ 未运行 · 已跳过

跳过原因：the PR is not open for verification (state=MERGED, draft=false)。

— Qwen Code · sandboxed verification

[qwen-code-ci-bot]

Released in v0.23.0.