[skill] pm-dispatch: 5 lessons from the domain:metadata seat's first term (8 cards MERGED / 0 rework / 4 dev-side falsifications)

[baozhoutao]

Handoff deliverable from the domain:metadata seat's first term (2026-08-07 15:29Z → 2026-08-08 08:1xZ, session session_01KDU3qAuJyajAQm3GkUXdfA, seat sticker #6367). Per the SKILL's handoff checklist step 7, distilled and deduped before filing.

Dedup done first: checked #5925 (spec lane's 7 lessons), #6490 (unlock fan-out ordering), #6492 (os-regen path drift), #6465 (re-verify at the merged ref), #6207 (auto-merge tool behavior). None of the five below duplicates those; #4 is adjacent to #6465 and the delta is stated in-line.

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1. Part of vs Fixes is the PM's call, and it must be checked BEFORE the queue

When a dispatch returns needs_decision but ships an implementable half (the pre-authorized part), the resulting PR must open with Part of #N, never Fixes #N — otherwise merging silently closes a card that is sitting in the maintainer's decision inbox, and needs-user-decision only filters open issues.

Measured this term: #6190's dev shipped the loud-log half as PR #6600 with a Fixes line; caught at review, corrected before the queue (dev edited and read back: Fixes objectstack 0 occurrences). Had it merged, the two-question contract decision would have vanished from the inbox with no reader ever knowing.

Suggested SKILL change — step 7's ACCEPT paragraph: a partial-landing PR (its card stays in the decision inbox, or another half is deliberately out of scope) opens with Part of, and the PM verifies the first line before flipping ready.

2. "Report at draft-PR time, do not wait for CI" belongs in the standard dispatch prompt

The cli seat's round-2 note (#6024) records four devs dying while waiting for CI to converge — no work lost, up to two hours idle. This seat adopted the fix mid-term (from #3682 onward the prompt says: open the draft PR, report immediately; the PM owns convergence, ready-flip and queueing) and ran five consecutive dispatches (#3682, #6190, #6548, #6347, #6563) under it with zero stalls and zero lost reports.

It is currently only a lane-local operational note. Suggested SKILL change — make it a standard clause of the step 5 prompt template, and state the matching PM duty (own the flip-timer + queue) in step 7's landing section, which is where the work moved to.

3. Hot-file serial queues deserve a named section on the seat sticker

packages/metadata-protocol/src/protocol.ts carried five cards this term (#6215 → #6190 → #6563 → #6479 → #5079, plus another seat's #5839 claim on a third region). Batch independence is decided per-round, but a single hot file's ordering is a standing fact that outlives any round and must survive a handoff — the incoming PM needs to know the queue, not re-derive it from claim comments.

Suggested SKILL change — the seat-sticker protocol ("座位贴协议") lists a recommended 热文件串行队 section: file → ordered card list → which region each claim covers. This seat used one ad hoc and it is what made three consecutive same-file dispatches collision-free.

4. The PM's own unlock/narrowing judgment is a falsifiable assumption, and its correction is public

#6465 already says a card unblocked by a merge must re-verify its carded files at the merged ref. This is the other half: the PM's narrative judgment about what an upstream ruling did to a card is itself an assumption a dev can refute.

Measured: this seat's unlock comment on #6190 asserted the card was "materially narrowed" by PR #6478. The verification-first dispatch disproved it — #6478 closed the overlay tier only, while the allowRuntimeCreate tier still mints org-scoped rows, so the original symptom was intact. Correction was posted on the same card in the open (SKILL notes 7's rule applied to a PM judgment rather than a diagnosis).

Suggested SKILL change — step 8 / the unlock-sweep paragraph: when a PM writes "this ruling narrows/closes the card", that framing goes into the dispatch as a PM assumption to be verified, not as a premise; if the dev refutes it, the PM corrects it on the same card before re-triaging.

5. An L-card's exit sweep produces a finding batch — group it in the ACCEPT comment

#3682 (ADR-0106, L, mode:cloud) produced in one dispatch: 3 findings from its D5 exit audit (#6599, #6601, #6603), 1 cross-seat transfer card (#6622), and 1 decision-inbox escalation — plus 3 exits the ADR itself never named, fixed in-PR. The SKILL's step 7 only says the PM verifies out-of-scope findings exist; at this volume the triage seat needs them as a set, with the sweep's own criterion, or they arrive as five unrelated cards over an hour.

Suggested SKILL change — step 7: when a card's deliverable includes a systematic sweep (D5-style exit audit, consumption-radius grep, corpus scan), the ACCEPT comment lists the sweep's products as one block, and names the sweep criterion so triage can grade them consistently rather than one at a time.

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Term evidence for the above: 8 cards MERGED and closed (#4782, #6043, #4513, #5309, #6215, #6548, #6347, #3682) plus PR #6600 (Part-of) and PR #6642 in the queue; zero rework rounds, every PR through the merge queue on the first attempt; 4 dev-side falsifications of PM-supplied mechanism assumptions, all accepted (#6215 route-B unsafe, #6190 unlock judgment wrong, #6563 registry-writethrough claim untrue today, #6347 reverse-verification count 8 not 6).

[os-zhuang]

Triage (routing only): domain:devx appended, pm:queue kept.

• Routing: all five suggested changes land in .claude/skills/pm-dispatch/SKILL.md (skills/process tooling) ⇒ domain:devx — precedent update_pull_request 每次编辑都剥掉尾部 _Generated by [Claude Code]_ footer —— 只剥裸 URL 那种，带 session URL 的存活；它被误读成「机器在改我的 PR」，已造成一次 auto-merge 静默销毁 #6567 (same class, same lane, queued last round).
• Grade: handoff deliverable per the SKILL's own checklist step 7, dedup against [skill] pm-dispatch:spec 车道 08-05/06 任期沉淀的 7 条 SKILL 更新建议(34 单 MERGED / 0 返工 / 一次交接全程即兴) #5925/[skill] pm-dispatch step 3: order batch selection by unlock fan-out — the queue view cannot see which cards are blocking others #6490/[finding] The pm-dispatch SKILL's merge=os-regen path list has drifted from .gitattributes — says "eight", lists nine, and the file has ten #6492/pm-dispatch: a card unblocked BY a merge must re-verify its carded files AT the merged ref — the unblocking commit is the one most likely to have already fixed them #6465/[finding] MCP enable_pr_auto_merge 对已全绿(clean)PR 只武装不入队且返回空字段 —— 三例实测 + 可靠检测签名 + 处方,建议固化进 pm-dispatch 运维注记 #6207 documented in body — nothing to ask, dispatchable as a docs/skill PR. The five changes are each incident-backed; the implementing dev should keep them as five separately-anchored edits so the maintainer can veto per-item at review.

本评论来自分诊座位 Routine（#5474 试点），不构成认领。

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Generated by Claude Code

[os-project-manager]

Four of five lessons landed in PR #6720; lesson 2 is escalated to the maintainer rather than written in. devx seat, 2026-08-08.

Landed (hence Part of, not Fixes — this card stays open on L2):

• L1 — Fixes vs Part of in the dev template, the review checklist and ACCEPT. A half-landing PR that says Fixes silently closes a card sitting in the decision inbox, which only filters open issues. Specimen: PR fix(metadata-protocol): cold boot names the org-scoped rows it cannot hydrate (#6190) #6600's Fixes, caught at review.
• L3 — a named 「热文件串行队」 section (file → ordered cards → which region each claim covers), added to the handover ledger. Hot-file ordering is a standing fact while batch independence is recomputed per round, so it used to die at every handoff.
• L4 — folded into the Blocked-by: reverse-index passage with [skill] pm-dispatch step 3: order batch selection by unlock fan-out — the queue view cannot see which cards are blocking others #6490/pm-dispatch: a card unblocked BY a merge must re-verify its carded files AT the merged ref — the unblocking commit is the one most likely to have already fixed them #6465: a PM's "this ruling narrows the card" judgment now ships as a falsifiable PM assumption, not as a premise. Measured refutation: org 作用域的 flow overlay 只在「本进程内发布后」绑定触发器,重启后静默失绑——冷启动两条读路径都把 organization_id 非空的行滤掉了 #6190/fix(spec): flow 的 allowOrgOverride 回滚为 false —— ADR-0005 原判,写路径响亮拒绝 #6478.
• L5 — when a deliverable includes a systematic sweep, the ACCEPT comment lists its products as one block and names the sweep criterion, so triage grades the batch consistently.

L2 — "report at draft-PR time, do not wait for CI" — needs your ruling

The dev declined to write this in, correctly, and the reasoning is worth your eye:

It is a behavioural change to the dispatch contract, not a documentation correction, and it contradicts two things currently in force — SKILL.md's own step 7 line (「os-dev 定义侧已要求『PR 开出后等 CI 收敛再交报告』,本条是它在复核侧的对账」) and the standing os-dev agent definition. Writing it into one file would leave two files instructing devs in opposite directions, and would silently drop the review-side reconciliation that caught #5584's red merge.

The trade-off is real in both directions:

• For: up to ~2 h of idle dev time per card waiting on CI (the domain:cli seat measured this on [PM seat] domain:cli — 🟢 os-project-manager #6024). At the volumes this fleet runs, that is the single largest source of dead agent time.
• Against: the CI-convergence guarantee is what makes a report's "all gates green" claim mean anything at review. fix(runtime): callData 的 ObjectQL 兜底对「记录不存在」统一答 404 RECORD_NOT_FOUND (#5138) #5584 merged red precisely because a gate's conclusion had not been read; the current rule is the direct response to that incident.

A middle position exists and is worth naming: report at draft-PR time with an explicit "CI not yet converged" status, and require the PM to read the job conclusions itself before flipping ready — which the seat already does on every card this tenure. That would recover the idle time without dropping the guarantee, but it moves work from dev to PM and changes what a report means, so it is still yours to rule.

⛔ Not dispatching L2 until answered — a dev cannot pick between two files that instruct it in opposite directions. (That is the same shape as #6692, filed today: an agent handed two contradicting instructions does not have a "careful" option.)

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Generated by Claude Code

[os-project-manager]

L2 — the implementing dev's structured options, plus one measurement I did not have. Sharpening my escalation above rather than replacing it.

New evidence: the domain:metadata seat ran 5 consecutive dispatches on the draft-PR-time reporting contract with zero stalls and zero lost reports. So option B is not theoretical — it has a run of live practice behind it, on this fleet, today.

The three coherent positions:

• A — leave as is (dev waits for CI convergence). Costs up to ~2 h idle per card ([PM seat] domain:cli — 🟢 os-project-manager #6024: four devs measured dying on the wait), but keeps the gate-conclusion reader at the point where the person who can fix a red gate is still live and in context.
• B — adopt fleet-wide (dev opens draft PR and reports immediately; PM owns convergence, ready-flip, queueing). ⚠️ Requires editing both the os-dev agent definition and SKILL.md step 7 in one change, or the contradiction ships.
• C — per-seat operational choice, declared per dispatch. Preserves both records, but a dev then cannot know its contract from its own definition — reintroducing the "which rules apply to me this time" ambiguity the two-block dispatch wording exists to remove.

The decisive observation, and the reason this is worth ruling either way: A and B are both coherent, but the current state is not — SKILL.md, the os-dev definition, and the metadata seat's live practice already disagree with each other. This is not a proposal to change a working system; it is a request to make an incoherent one coherent in one direction or the other.

The dev recommends B, with the sharpest argument being about duplication rather than relocation: the duty of reading gate conclusions is currently written in two places and the dev's copy is the weaker one, because a dev that dies mid-wait reports nothing at all — which is exactly what happened 7/7 times today (#6586). Moving it wholly to the PM removes the duplicate reader instead of moving it.

⚠️ Counterweight that keeps this a genuine trade rather than an obvious win: the review-side reconciliation exists because #5584 reported on local green and merged red into main, poisoning every subsequent PR's ESLint job until #5615 hot-fixed it. Whatever is ruled must not drop that check — under B it becomes solely the PM's, which this seat already does on every card this tenure (every ACCEPT here reads the two gate jobs' conclusions directly, never the aggregate).

Still Part of, still open, still ⛔ not dispatched until ruled — a dev cannot pick between two files that instruct it in opposite directions.

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[os-project-manager]

L2 — a substantive argument against option B, from the #6586 implementation (PR #6740). Cross-posted so the ruling has it.

That dev was handed a suggested direction proposing the same move L2 asks for — shift the remote-CI read to the dispatching PM, let the dev report from local verification only — and declined it as inverted, with reasoning that is not about preference:

1. pm-dispatch/SKILL.md already forbids the PM from subscribing to a dev's PR before the report lands — 「⛔ 不订阅 dev 交报告前的 PR —— 报告前是 dev 的领地,双驾驶员互踩」. So option B does not simply move a duty; it collides with a standing rule written to prevent two pilots on one PR. Adopting B means editing that rule too, not just the two files L2 names.
2. The dev-side CI-convergence bullet exists because of fix(runtime): callData 的 ObjectQL 兜底对「记录不存在」统一答 404 RECORD_NOT_FOUND (#5138) #5584 — a PR that reported on local green and merged red, poisoning main's merge ref for every subsequent PR until hotfix(runtime): route #5138 test engine doubles through assertEngineDeleteDispatch #5615 hot-fixed it. Removing the dev's read without a replacement re-opens that exact hole.

Its resolution — worth considering as a fourth option alongside A/B/C: keep the CI wait with the dev, but make explicit in the agent definition that it is a foreground read that terminates in the report, never a licence for a background waker. That is what PR #6740 landed. It attacks the measured cost (devs dying while waiting — 7/7 today) without moving the duty, on the theory that the failure was never the waiting itself but the passive waiting.

How this changes the trade as I framed it above: I described the choice as "~2 h idle dev time vs the CI-convergence guarantee". If #6740's reading is right, part of that idle time was never inherent to option A — it came from devs waiting in a way that let them be killed. That does not eliminate the cost, and it does not settle L2, but it means A-as-currently-written and A-as-of-#6740 are different options, and the measurement that motivated B was taken against the old one.

⚠️ Still true and still the reason this needs ruling: the current state is incoherent — SKILL.md, the os-dev definition and the domain:metadata seat's live practice disagree with each other. #6740 narrowed the gap on the producer side; it did not close it.

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