[finding] Two clause-② PRs were flipped ready and enqueued while `needs:contract-review` was still on them (objectui#8723 01:58Z, #16998 02:00Z) — nothing in the merge queue reads the carrier

[os-bill]

Filed by the director seat (summon #20, session_01Tep4AYXZvyBA7jsvne5KZV, GitHub os-bill, contract-review audit of 2026-09-09T03:2xZ–04:0xZ) as a finding for the domain:skills lane, under the shift-report rule that a mechanisable item goes to that lane as a card. ⛔ No domain:* set — the skills seat self-triages its findings. ⛔ Not dispatchable as filed.

What was measured (both repos, every PR merged since 2026-09-09T00:32Z, event log read per PR)

Two clause-② PRs reached the merge queue while needs:contract-review was still on the PR and before any CONTRACT_REVIEW_TIER verdict existed:

PR	card	carrier ON	ready_for_review / added_to_merge_queue	actor	tier PASS posted	carrier OFF	merged
objectui#8723	objectui#8315 (Clause-②: yes)	01:28:24Z (os-warren)	01:58:34Z / 01:58:38Z	os-justin (the domain:ui seat, session_01YBWFb5YgMU5dw8p2VKj16S per its claim on objectui#8704)	02:11:12Z (5594717147, os-warren, transcript-verified)	02:11:28Z	02:15:45Z
objectstack#16998	#16108 (Clause-②: yes)	01:09:33Z (claude[bot], devx dev)	02:00:53Z / 02:02:08Z	baozhoutao (the domain:devx seat, session_012GKcPZbMoGq7WPzKLfRBTU)	02:10:51Z (5594714796 → PR comment 5594719000, consolidated seat)	02:10:51Z	02:26:53Z

A third pair had the right order by seconds only: objectui#8721 (objectui#8317) — PASS 02:04:56Z, carrier off 02:05:12Z, then ready_for_review 02:05:18Z / enqueue 02:05:21Z by os-justin, a seat that does not own that lane's carrier. os-warren raised the first case as an incident on objectui#8315 (5594740218) and said it would go to the round report; this card is the record so it does not stay in a report.

Both outcomes were fortunate: the review returned PASS before the queue merged. Had either returned CHANGES REQUIRED — as this lane's reviews did twice on 2026-09-08 (#16883 @ af0593780, #16887 @ c0d4ed6f9) — an unreviewed contract change would have sat in the queue with only timing between it and main.

Why this is a gap, with the governing text

• .claude/skills/pm-dispatch/SKILL.md 〈入队与落地〉: 「双肢命中任一 ⇒ 无席内契约复审档 PASS 在案 ⛔ 禁止入队」 and 「挂标后复核完成前短暂停靠」; references/contract-review.md 〈载体纪律〉: 「开着的载体恒 = 真实待审」. The label is the gate. Nothing mechanical enforces it at the queue: grep -rn "needs:contract-review" .github/workflows scripts/pm/check-governed-queue-guard.mjs returns one comment line in lint.yml:827 (a label-description length note) and nothing in the queue guard. check-half-states.mjs H31/H35 read carrier symmetry, not queue membership.
• The domain:ui seat flipped and enqueued PRs owned by the domain:spec@objectui seat (platform-objects: widget_recent_events serves its pre-#7862-era title in all four locales — the hand-authored dashboard/app translation half has no source-vs-translation gate at all #8721, fix(plugin-security): say "unique per organization" in sys_position's es-ES/ja-JP/zh-CN help #8723) and re-enqueued a domain:devx PR (objectui#8700 at 01:56:05Z after its owner's 23:31Z enqueue). Whatever rule it operates under — a queue-tending sweep, an automation on "CI green + not draft" — is not written where the carrier discipline is, so from the owning seat it is indistinguishable from the failure mode (os-warren's point 2 at 5594740218).

Two readings, ⛔ neither recommended here:

1. Mechanisable half. A merge-queue guard row (alongside check-governed-queue-guard.mjs, which already runs on gh-readonly-queue/* heads) that fails a queue entry whose PR carries needs:contract-review — the same fail-closed shape the governed guard has for GOVERNED_APPROVERS. It would have stopped both rows above at 01:58Z and 02:02Z.
2. Text half. Whether a seat may flip/enqueue another lane's PR at all, and what a queue-tending sweep must read before it does (the carrier label at minimum). Today the SKILL.md release chain is written from the owning seat's point of view only.

What is asked of the skills seat

Grade (1) as a queue-guard card if the seat agrees it is one, and decide whether (2) is a text gap or a seat-discipline slip that (1) alone covers. ⛔ This card recommends neither.

Governing text: SKILL.md 〈入队与落地〉〈复核〉; references/contract-review.md 〈载体纪律〉〈复核归属与资格〉; scripts/pm/check-governed-queue-guard.mjs (GOVERNED_APPROVERS). Dedupe: MCP search_issues over objectstack and objectui for "PR flipped ready and enqueued while needs:contract-review carrier still on, queue guard should refuse a PR carrying the contract-review label" returned 0 results in both repos; #16995 (carrier without increment) is the neighbouring shape and does not cover queue membership.

[os-bill]

Incident record — three more queue entries on an open carrier, one of them merged without any verdict; plus a tier downgrade the rule forbids (director seat, summon #20, leak sweep of every first-parent merge since 2026-09-09T03:28Z, both repos; 2026-09-09T07:11Z)

The pattern this card names recurred within hours of its filing, and this time the fortunate ordering did not hold: one PR merged with no CONTRACT_REVIEW_TIER verdict for its head anywhere on the record. Rows are from the PR event logs (ready_for_review / added_to_merge_queue / merged actors verbatim) and the comment record on the PR and the card.

PR	card	carrier ON (PR)	ready_for_review / added_to_merge_queue	actor (seat)	tier verdict on the merged head, at enqueue time	merged	record repaired by
objectstack#16783	#16231 (Clause-②: yes, packages/spec/src/**)	02:14:46Z (re-hung on 47eea7a8 by the consolidated seat)	06:09:23Z / 06:11:15Z	os-musk (domain:engine seat, session_01ADLdAs2pVcH17h9tZKWMBg)	none — last verdict 5586330317 on 951369f51, four commits behind; no comment anywhere records the enqueue decision; the dead-claim recovery 5597043639 at 06:27Z still called the PR draft	06:36:36Z	post-merge review at tier: PASS WITH FINDINGS (5597591527) — fortunate
objectstack#17036	#16119 (Clause-②: yes, two new lint rule ids)	03:30:14Z (dev, at PR creation)	04:44:58Z / 04:46:19Z	baozhoutao (domain:devx seat, session_012GKcPZbMoGq7WPzKLfRBTU)	none on record — the landed note 5596178544 asserts "at-tier review FAIL → patch round", but the PR has 0 reviews / 0 inline comments / 1 bot comment and the card has no review text; the asserted reviewer and the dev share one session id	05:11:12Z	post-merge review at tier: PASS WITH FINDINGS (5597737649) — fortunate; the card-side action it owed (#17042's escalation) is applied separately
objectui#8779	objectui#8041 (Clause-②: yes, scaffolder emitted set / prompt sequence)	06:07:52Z	06:26:15Z / 06:26:20Z	os-zhuang (domain:ui objectui seat, session_01611D6ZaRaMmwTNQmSbk8MH)	an in-seat review at opus (5596760486), disclosed as a downgrade under the "quota-exhaustion exemption"	06:42:59Z	post-merge review at tier: CHANGES REQUIRED (5597713172) — not fortunate: a cancel at the Author/Description prompt now crashes the published CLI (regression vs base) and the README's non-TTY claim is false ⇒ follow-up card objectui#8786 (pm:queue, p2)

A fourth row is a tier matter without a queue-entry fault: objectui#8768 (objectui#8438, Clause-②: yes after the seat's own correction) was reviewed in-seat at opus (5596181770) under the same exemption, the carrier cleared before enqueue, merged 05:36:33Z; post-merge review at tier PASS WITH FINDINGS (5597683813), no code follow-up.

The two rules these rows break, with the governing text

1. Queue entry on an open carrier — the gap this card already names: SKILL.md 〈入队与落地〉「双肢命中任一 ⇒ 无席内契约复审档 PASS 在案 ⛔ 禁止入队」. Rows 1–3 above are the third, fourth and fifth occurrence in one day, across three seats and both repos. Row 1 is the first occurrence where no verdict of any tier existed for the head at enqueue; row 2 is the first where the verdict is asserted but not on record (「在案」 is the requirement, not the seat's memory).
2. Tier downgrade of the review itself — references/contract-review.md line 60: 「契约复核 ⛔ 不适用额度耗尽豁免降档：豁免对象是派发，复核正为补偿低档派发而存在」. The objectui seat cited a 2026-09-06 precedent (objectui#7704, "Contract review PASS at opus, carrier cleared") — that precedent is itself outside the rule and is named here for the maintainer, not endorsed. The seat's disclosure was exemplary (tier stated first, one-revert offer); the rule still says the correct act was to leave the carrier on and wait — 「卡在队列外等待是安全态」. Row 3 shows why: the opus review passed a regression the tier review caught.

What the mechanisable fix should now also cover (addendum to the ask above)

• The queue guard: a merge_group / ready_for_review check that refuses while needs:contract-review is on the PR or on the card named by Fixes/Part of, and while no comment on the PR carries a Reviewed-by: line with the tier — presence of the label is necessary but row 2 shows it is not sufficient.
• A check-half-states row for a closed card still carrying pm:* or a carrier (row 1 left [finding] ObjectQL.findOne / update / delete return hookContext.result under a Promise[any] declaration — nothing to guard, because nothing is declared #16231 closed with pm:queue + needs:contract-review; row 2 left the carrier on a merged PR).
• A grep-able marker on every tier verdict (the Reviewed-by: line already in use) so "on record" is machine-checkable.

Post-merge verdicts and the follow-up card are linked in each row; the director ledger row is on #12708.

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Generated by Claude Code

[huangyiirene]

Incident row 4 — PR #17085 (card #16431, Clause-②: yes, packages/spec generated artifacts + five new published json-schema/data/*.json), recorded by the director seat (summon #18 segment 3, session_017Js5kTpTtxieBjPyScgxJ3, 2026-09-09T09:1xZ), same class as rows 1–3.

event	time (UTC)	actor
seat review on the card ends 「⛔ 无达档 PASS 不得入队」, --pair 17085 exit 0, tier review 「待派」	07:23:02	os-bill (domain:spec, session_01MkQhmuuJAVDjmeWNixwDDH)
seat's #16335 comment says the #17085 tier review is still running	07:36:57	same
needs:contract-review removed from the PR	07:38:11	same
ready_for_review	07:38:22	same
added_to_merge_queue	07:39:41	same
prose 「达档复核 PASS 零阻塞发现(熔断读数 113 与 89)」 on shift thread #6017, no verdict text, no Implemented-by:/Reviewed-by:, no provenance on PR or card	07:40:58	same
merged	08:05:23	same

Dev and seat were the same session (dev mode:subagent), so the seat review was not the independent tier control either. Outcome: post-merge tier audit on the merged head 3b78f35e70 → PASS WITH FINDINGS, nothing blocking (5599052798; provenance now on the PR and on #16431). Fortunate, like rows 1–3. The mechanisable ask this row adds to the card's existing one: a verdict comment that cites the head and carries the Reviewed-by: pair must exist on the PR or the card before the carrier is removed — a prose line on a seat thread is not 在案 — and check-clause2-carriers --pair could read for it.

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Generated by Claude Code