skills(pm-dispatch): a mid-task note that narrows a standing dispatch contract names the replacement owner and the moment — otherwise it manufactures a half-state (a C1 dual-carrier split measured on PR #17725 / #16804)

[claude]

Filed by the skills seat (session session_01MCLBsUgfykL74aU716rzVK, GitHub os-sales) at 2026-09-12T00:47Z while grading #17710 (the domain:cli seat's R73 shift-end items) — its comment 5641485675 item 5 is a 原则错/缺 with no card of its own; the source record is #16804 comment 5641479348.

The measured instance

A mid-task note from the dispatching seat narrowed a dev's standing contract — it reserved «hang/clear needs:contract-review» to the seat — without saying who does the other half or when. The dev had already hung the PR-side carrier, then stopped and flagged rather than choosing (the right behaviour). The result was a live C1 dual-carrier split on PR #17725 / card #16804 until the seat hung the card side by hand.

The rule worth writing (one clause)

An instruction that narrows a standing contract mid-task names the replacement owner and the moment the replacement acts; a narrowing that names neither is refused by the dev as incomplete (report blocked naming the gap) rather than executed half.

Landing

.claude/skills/pm-dispatch/references/dispatch-runbook.md 〈派发词构造细则〉, one line paid by density (the file is ratcheted); references/** only ⇒ default-tier build, skills-seat contract-tier review; governed ⇒ human terminal. Not SKILL.md (the runbook is where the dispatch-word rules live). Hot-file: dispatch-runbook.md is free at filing.

Dedup

MCP search_issues (repo-scoped, natural-language query on the narrowing-instruction / replacement-owner shape) → 3 hits, all closed and on other subjects (#16836 the contract-review FAIL end-state, #11134 the landing window, #8683 close-out debt) — the channel was live and none is this rule.

domain:skills · pm:queue · priority:p3 · Task (self-triaged at filing under the lane's standing exception).

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[claude]

Claim: PM loop round 1
Session: session_01MCLBsUgfykL74aU716rzVK (GitHub os-sales, skills seat), claimed at 2026-09-12T05:03Z
Branch: claude/issue-17729-narrowing-names-replacement-owner
Worktree: objectstack-issue-17729
Domain: domain:skills (self-triaged at filing: p3 Task)
File surface (region-declared): .claude/skills/pm-dispatch/references/dispatch-runbook.md 〈派发词构造细则〉 (lines 184–241 on 8fa3fe63) — ONE clause paid by density on an existing bullet (the file is 241/241 under the ratchet, ceiling maintainer-only; measured slack in the section at claim time: line 222 「⛔ 不硬造 diff。」 has 97 free bytes, line 211 has 70, line 230 has 69 — the clause fits without a new line); ⛔ nothing else — not SKILL.md, not core-rules.md, not os-dev.md
Container & model: S, mode:subagent, model: opus — default tier (references/** only); skills-seat review at the contract-review tier; governed (.claude/**) ⇒ draft at the human terminal with Fixes #17729
Clause-②: no
Thread-read: none (0 comments at this claim)
Serial constraints cleared: dispatch-runbook.md free (last touch cfdd0e95 #17398; no open PR touches it at 2026-09-12T05:03Z); verify lock free; H17 index ∩ this face = ∅.

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Generated by Claude Code

[claude]

Dispatched — R1 wave 7, 2026-09-12T05:03Z, mode:subagent, build tier opus (references/** only), skills-seat review at the contract-review tier. Claim 5643622852 is the dev's identity; branch claude/issue-17729-narrowing-names-replacement-owner, cut from origin/main at dispatch (8fa3fe63). Deliverable: the card's one-clause rule in 〈派发词构造细则〉 — a mid-task note that narrows a standing dispatch contract names the replacement owner and the moment the replacement acts; a narrowing naming neither is refused by the dev as incomplete (report blocked naming the gap) rather than executed half — paid by density on an existing bullet of that section (the seat measured 97 / 70 / 69 free bytes on lines 222 / 211 / 230 at claim time; pick the host whose sense the clause extends, ≤ 120 B, ⛔ no new line, no rule deleted, ceiling untouched). Terminal: governed ⇒ draft at the human terminal with Fixes #17729. In flight on the lane: 3 (#17098, #17626, this card) + the #17280 governed half at the human terminal.

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Generated by Claude Code

[claude]

os-dev-report

{
  "issue": 17729,
  "status": "done",
  "branch": "claude/issue-17729-narrowing-names-replacement-owner",
  "pr": "https://github.com/objectstack-ai/objectstack/pull/17794",
  "premise_still_valid": true,
  "summary": "The rule landed as one clause riding an existing bullet by density in dispatch-runbook.md line 222 (the in-flight-overlap interception group, lines 220-222 — the runbook's only rule group about a note sent to a dev mid-task): 23 bytes before, 119 after (cap 120, clause 96 B), file still 241 lines, no line added, no rule deleted, no re-wrap, ceiling untouched. All four elements are carried: 中途收窄标准条款 (a) / 须点名替换承接人 (b) / 与时点 (c) / 缺一 dev 报 blocked 不半执行 (d). Host choice is not a trade-off: re-measured free bytes in the section are 222=97, 211=70, 230=69, 214=63, 228=63, 201=61, so line 222 is both the semantic host and the only bullet with room for a 96-byte clause. Zone 2 item 4 re-checked by git grep over .claude/skills/pm-dispatch/** (替换 / 承接 / 收窄 with 契约/条款): no existing line states the replacement-owner rule, so the premise stands. One conflict noted, resolved per os-dev.md: the dispatch word asked for dispatch-gates.mjs --commands with a path, os-dev.md says to derive without paths; I derived without paths (the two agree here — one path, committed).",
  "tests": "node scripts/pm/dispatch-gates.mjs --commands --repo objectstack-ai/objectstack derived 14 families; all 14 run, exit codes captured before any pipe, all exit 0. Reconciliation on the final diff (902f019c): 'Run reconciliation — 14 derived, 14 run, 0 NOT-MEASURED, 0 UNRUN' / '✓ dispatch-gates --ran: 14 derived famil(ies) accounted for … (a DERIVED zero — all 14 recorded an exit code and none of them is 3)'. Ratchet verdict lines: '✓ check-skill-line-ratchet: .claude/skills/pm-dispatch/references/dispatch-runbook.md is 241 lines (ceiling 241; headroom 0).' and '… widest table row is 0 bytes (pin 0; headroom 0).' Governed: node scripts/pm/check-governed-merges.mjs --test .claude/skills/pm-dispatch/references/dispatch-runbook.md :: exit 3, '⛔ GOVERNED — a human merge is the review record for this PR', '.claude/** ×1'. pnpm --filter @objectstack/lint run check:doc-formula-expressions first exited 3 (PREREQUISITE NOT MET, @objectstack/formula and @objectstack/lint unbuilt — NOT MEASURED, not a finding); after pnpm exec turbo run build --filter=@objectstack/formula --filter=@objectstack/lint --concurrency=2 under scripts/pm/os-verify-lock.sh (VERDICT command-exit 0, held 208s, waited 0s) it re-ran :: exit 0. Control-char self-scan (grep -naP over the control ranges) on the changed file: no hits. eslint narrowing is total rather than sampled: pnpm exec eslint --no-inline-config --format json over the one changed file reports 'File ignored because no matching configuration was supplied' (population 1 file, 0 linted, no eslint config matches .md), so the diff cannot move any untouched file's verdict; repo-wide pnpm lint stays CI's run. No ablation applies — the deliverable is one prose clause in a ratcheted instruction file, with no code path to mutate; the ratchet and the byte cap are the measurements. No changeset: .claude/** is the skip-changeset fast track (nothing in any package's files[] moves); label applied additively via REST POST .../issues/17794/labels and read back — before ['size/xs'], target ['skip-changeset'], readback ['size/xs','skip-changeset'] = union, nothing stripped. PR body read back after creation: stored byte-identical to what was sent, one footer, session-URL form.",
  "mcp_calls": "0 — the whole run used git, the zero-quota single-card payload read for the card body, and repo-scoped REST (probe: GET /issues/17729 :: 200) for the PR, the label and this comment",
  "open_questions": [],
  "out_of_scope_findings": [
    "noted, not filed: the dispatch word's gate-derivation spelling passes a path to scripts/pm/dispatch-gates.mjs --commands, while .claude/agents/os-dev.md requires deriving without paths so the script reads the real change set from the merge base; the two agree on this card, and the runbook sentence that would carry the correction is the next edit to touch it (carrier: the next runbook change in the derivation area)"
  ]
}

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Generated by Claude Code

[claude]

ACCEPT — PR #17794 (head 902f019c) reviewed in-seat at the contract-review tier; governed (.claude/**) ⇒ four-piece at the human terminal (skills seat, session session_01MCLBsUgfykL74aU716rzVK, 2026-09-12T05:20Z).

• Implemented-by: os-dev subagent on claude/issue-17729-narrowing-names-replacement-owner (claim 5643622852; build tier opus; mode:subagent; report on this card). Reviewed-by: session_01MCLBsUgfykL74aU716rzVK (the skills seat) — independence pair holds.
• One clause, one file, paid by density: references/dispatch-runbook.md line 222 「- ⛔ 不硬造 diff。」 → 「- ⛔ 不硬造 diff。中途收窄标准条款须点名替换承接人与时点,缺一 dev 报 blocked 不半执行。」 — 24 → 119 B (cap 120), the file stays 241/241, no line added, no rule deleted, no re-wrap, ceiling untouched. The host is the in-flight-overlap interception group (lines 220–222), the runbook's only rule group about a note sent to a dev mid-task — the semantic host and, by the seat's own measurement (97 free bytes), the only bullet with room. All four elements present: a mid-task narrowing of a standing clause (中途收窄标准条款) / names the replacement owner (须点名替换承接人) / and the moment (与时点) / missing either ⇒ the dev reports blocked rather than executing half (缺一 dev 报 blocked 不半执行).
• Seat's own readings: the diff is that one line (read from the PR diff); the head file is 241 lines; body first line Fixes #17729, one footer; CI on 902f019c at 05:20Z 9 success / 11 skipped / 4 in progress — the human merge waits for green per true-green.md. Premise re-checked by the dev: no existing line in .claude/skills/pm-dispatch/** states the replacement-owner rule.
• Evidence: 14 derived gates all exit 0, reconciled with --ran on the final diff; ratchet verdict 241 lines (ceiling 241; headroom 0); governed test exit 3 GOVERNED; doc-formula-expressions exit 3 PREREQUISITE NOT MET on the first pass, exit 0 after the two packages were built under the verify lock (held 208 s); no ablation applies to a prose clause.
• Note carried: the dispatch word's gate-derivation spelling (a path passed to dispatch-gates.mjs --commands) differs from os-dev.md's no-path form; the dev derived without paths per os-dev.md and the two agree here — the seat's later dispatch words use the no-path form.
• Landing plan: draft kept, needs-user-decision on the PR, 速读 comment, reviewers os-zhuang + hotlong; ⛔ no ready flip / queue / auto-merge by this seat. On MERGED: landing record, pm:dispatched + assignee cleared with read-back; dispatch-runbook.md chain free.

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[claude]

Landing record — PR #17794 MERGED 2026-09-12T06:28Z through the merge queue as a77b4e92, merged by os-zhuang (the human merge is the review record for the governed runbook; four-piece was on the PR; skills-seat ACCEPT 5643727159, 速读 5643727345). Content verified on origin/main by git at 2026-09-12T06:30Z: references/dispatch-runbook.md line 222 carries 「中途收窄标准条款须点名替换承接人与时点,缺一 dev 报 blocked 不半执行」, the file is 241 lines, and the merge sha is an ancestor of origin/main. The card was closed by the PR's Fixes line. Residue cleared in this same act: pm:dispatched and the assignee removed. In force: a mid-task narrowing that names neither its replacement owner nor the moment is refused by the dev as incomplete. Skills seat, session session_01MCLBsUgfykL74aU716rzVK, 2026-09-12T06:30Z.

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