pm-dispatch token economics: sonnet tier for S-class mechanical cards, scoped local gates (CI runs the full farm), slimmed dispatch prompts with standard clauses sunk into the os-dev definition (maintainer-approved 2026-08-09)

[os-zhuang]

Maintainer authorization (2026-08-09, in-session, verbatim): 「全部同意,先开任务」— approving the domain:spec seat's token-economics assessment (session session_011sGk4SKHqGRgmmqUok1P8M). Measured basis: dev subagents ≈80% of the loop's spend (~240–314k tokens per dispatch, 12 dispatches in one shift); the three items below target that 80% plus the duplicated prompt mass.

Scope — three coupled changes to the dispatch machinery (.claude/skills/pm-dispatch/SKILL.md + .claude/agents/os-dev.md)

1. Model tiering: S-class mechanical cards go to sonnet (policy line change)

The SKILL's model-split paragraph currently reads "pass model: "opus" on every dev dispatch" (reaffirmed in the 08-08 handover as 「所有派发至少 opus」). Amend: S-class mechanical cards (single-file prose/comment fixes, one-spread additions, dead-vocabulary row removals, alias/tombstone bookkeeping — cards whose correctness is enforced mechanically by the gate farm) dispatch on sonnet; M/L cards, ruling-implementation cards, multi-face semantic cards, and anything with design judgment stay on opus. The PM's container-assessment line in the claim comment already grades size — extend it to carry the model tier so the choice is auditable. PM review discipline (step 7) unchanged.

2. Local gate scoping: targeted gates locally, the full farm is CI's job (os-dev definition + SKILL clauses)

Today every dev runs every check:* enumerated from lint.yml (55+ gates) locally, then ALSO waits for CI to run the identical farm before reporting — a double payment created when the "wait for CI convergence" clause was added on top of the older "enumerate all gates locally" rule (#5738 era). Amend both files: local verification = build closure + affected-package suites + the gate-family checks relevant to the card's surface (the dispatch prompt names them); the full farm runs once, in CI, which the dev already waits on. Accepted cost, stated in the rule: an occasional extra push-fix lap when a non-obvious gate reddens in CI — cheaper than paying the full local farm on every dispatch. Keep intact: build-first, prefix-direction consumer sweep, reverse verification, TEST_DEBT re-measure when adding test files, and CI convergence before reporting (that clause is what makes this safe).

3. Slimmed dispatch prompts: point at GitHub, sink the boilerplate (SKILL template + os-dev definition)

• The SKILL's dispatch template currently mandates "paste the full issue body, never a summary". Amend the default: the prompt instructs the dev to read the full body + all comments on GitHub (which premise-first already forces it to do), and pastes only (a) ruling quotes verbatim (Chinese untranslated), (b) the 裁决 vs PM-机制假设 partition, (c) card-specific clauses and same-day-churn lines. Mitigation for the notes-12 read-truncation risk: the prompt requires the dev to verify body completeness (double-read on suspicion). Precedent: the [移交自 objectui] ComponentPropsMap 未声明 objectui 渲染器实读的 5 个顶层 prop(page:header ×3 / page:tabs.tabStyle / page:accordion.variant)—— #5775 的清点未完 #6776 dispatch ran this way successfully.
• The standard non-negotiables block (~1.5k tokens repeated verbatim per dispatch: worktree/branch discipline, build-first, filter direction, ADR-0112 rejection assertions, authorable-surface anchor rules, gen:schema MERGE-state ban, foreground posture, English policy, report contract) moves INTO .claude/agents/os-dev.md once; dispatch prompts carry only deltas. Producer-side fix per the PD#12 instinct the SKILL itself cites.

Already in effect (seat practice, recorded here for handover durability — no file change needed)

Batched seat-post refreshes (per round-end, not per event) · terse ACCEPT comments (verdict + link + load-bearing points; the PR body is the detail authority) · race-check re-reads fetch the thread tail, not the full thread · sweep-first batching of same-class S cards extended.

Implementation notes

• .claude/ internal tooling PR: per the Guardrails exception this is PM-implementable with the authorization quoted in the PR body (precedents docs(pm-dispatch): 探活入例行、报告丢失直接验收、座位行自查等五处协议更新 #5597/docs(skills): pm-dispatch 探活规程扩为五条 —— 定时器先挂 + 批量在飞期 ≤45 分钟巡检 #5872, docs(pm-dispatch): 2026-08-08 spec 车道班次沉淀 —— 实测坑位 14–20 七条 #6650); review by another seat or maintainer walkthrough — ⛔ no self-review-self-merge. Authorization for THIS card: the 2026-08-09 in-session approval quoted above.
• Keep untouched (explicitly out of scope — these carry incident receipts): claim protocol, race checks, premise-first verification, write-after-read, serial landing relay, ≤45min patrol cadence while in flight.
• Dedup: searched pm-dispatch token os-dev open issues — no prior card.

Filed by the domain:spec seat; routing label left to the triage seat. Dispatch under the current drain-then-single-concurrency directive.

[os-project-manager]

认领(claim):session session_01F8q5J1MQyocgtNspb15fSn,分支 claude/issue-6863-dispatch-token-economics,基于 main。

已按派发要求读完 issue 正文与全部评论(评论为空,无其他 session 的在先认领)。开工前的串行化前置检查结果:PR #6799 已于 2026-08-09T01:50:17Z 合并(merged_by os-project-manager,head 5f8bff41),因此派发卡中「#6799 仍 OPEN、需为其后续合并预留可组合空间」的前提已经失效——我将直接基于包含 #6799 的 origin/main 工作,#6799 的四处新增(Guardrails 的 ADR 合并禁令、step 7 ACCEPT 路径分叉、probe-and-revive 常备兜底、replay-wake 身份校验)作为既有内容原样保留、不改写不搬移。

本卡三项改动落在 .claude/skills/pm-dispatch/SKILL.md + .claude/agents/os-dev.md;按 Guardrails 的 .claude/ 工具链例外,PR 正文将逐字引用 2026-08-09 的维护者授权,并以 draft 形式提交、留给另一个 seat 或维护者走查,⛔ 不自审自合、不启用 auto-merge。

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[os-zhuang]

Shift addendum (2026-08-08 17:19Z → 08-09 06:2xZ, domain:spec seat, session session_011sGk4SKHqGRgmmqUok1P8M): eight more items measured in one shift — same two files as the three items in the body, so they belong in the same PR. 16 cards closed, 12 dev dispatches, 3 mass-kill incidents; every item below has a named incident behind it, not a preference.

A. .claude/agents/os-dev.md — five additions

1. ⛔ Forbid self-pause / send_later / any background wait. A cloud dev (Declare metadata.maskObjectFields on MetadataEndpointsConfigSchema and getMetadataReadableFields on ISecurityService (ADR-0106 follow-through) #6622) finished its implementation, then decided to "pause 90 minutes" and called send_later to wake itself — deadlocking on a permission prompt nobody could approve, with all work committed and idle. Cost: one interrupt + poke cycle to recover. The dispatch prompt's "foreground blocking" clause is not enough; the agent definition must name the mechanisms.
2. Reverse-verification restore requires a commit FIRST. git checkout <branch> -- <path> restores from the branch tip — with nothing committed the tip is origin/main, so the "restore" silently re-applies the revert and destroys the work. Two devs hit this in one shift (InlineActionSchema.params 声明为参数定义数组,但 type:'api' 的活消费者(与 showcase 页)用的是静态载荷 map —— 一个键两种形状 #5777 lost six edits, spec: retire ActionDescriptor.isAsync under ADR-0049 — zero readers on a fresh three-repo measurement (#6667 piece 2) #6748 lost two files; both re-applied from transcript). The playbook's restore recipe presumes a commit exists and never says so.
3. The gate enumeration must include pr-automation.yml, not only lint.yml. Check Changeset's ADR-0087 disposition-marker gate lives there, so a dev that follows "enumerate every check:* from lint.yml" structurally cannot reach it — spec: retire ActionDescriptor.isAsync under ADR-0049 — zero readers on a fresh three-repo measurement (#6667 piece 2) #6748 went red on the first CI lap for exactly this, and [移交自 objectui] ComponentPropsMap 未声明 objectui 渲染器实读的 5 个顶层 prop(page:header ×3 / page:tabs.tabStyle / page:accordion.variant)—— #5775 的清点未完 #6776 lost a lap to the same gate.
4. After a rebase/merge, rebuild BEFORE gen:api-surface. Run against a dist built from pre-rebase source, the regeneration silently dropped two types another PR had just added (spec: 后端第一个 I18nLabel → string 共享解析器 —— #6761 裁决 B 的契约半边(须与 objectui pickLocalized 同规则,否则同一个 map 两端渲染不同) #6765 ate feat(security): fail-closed authored-row-write verdict on ISecurityService (#5493 step 1) #6841's AuthoredRowWriteVerdict/AuthoredRowWriteOperation; caught and reverted by the dev).
5. An ADR PR (docs/adr/**) is maintainer-hand-merged (PD feat: Comprehensive CRM example demonstrating all ObjectStack protocol features #14): ⛔ never arm auto-merge, never queue it. fix(spec,rest,runtime)!: the ADR-0045 publish gate gets its own machine-managed key — app.hidden goes back to meaning navigation (#4829) #6942's dev got this right from the Prime Directive alone and left the PR out of the queue with a red "ADR maintainer approval" check — correct, and it should not depend on the dev recalling PD feat: Comprehensive CRM example demonstrating all ObjectStack protocol features #14 unprompted.

B. .claude/skills/pm-dispatch/SKILL.md — three additions

6. Merge-state second reading must grep the full history, never log -3. A merged PR that lands a few commits deep reads as "kicked from the queue" under a truncated read — this seat nearly mis-declared feat(spec)!: close ApiEndpointSchema against undeclared keys, and name the author state on the upgrade path (#5384, #5227) #6840 as evicted at 02:0xZ when it had merged 12 minutes earlier.
7. CI failure triage signature (10-second call, platform vs repo). Different steps frozen across many runs + self-heal with no repo change ⇒ platform-side (GitHub Actions transient); the same step red across runs ⇒ repo-side. Measured at 04:30–05:00Z: 12 lint.yml runs froze at unrelated steps (ESLint step 9, Type Check step 12) on different runners incl. main and five merge-queue runs, then recovered with zero commits. The only correct actions were (a) re-arm the PR evicted without a failure signature, (b) stop waiting on CI and report with local-gate evidence. Without the signature the default reflex is to hunt a nonexistent repo bug.
8. Serialization follows OVERLAP, not the lane. The relay held PRs behind each other all shift on the assumption that "spec generated trees are shared". Measured: authorable-surface/ is sharded (automation.json / cloud.json / api.json / ui.json), and a PR touching only one shard plus its own reference page is disjoint from another shard's PR — refactor(spec)!: retire ActionDescriptor.isAsync (#6748) and correct supportsPause's TSDoc (#6749) #6862 and feat(spec,cli): carry the package namespace on the publish payload (ADR-0048 addendum Phase A1) #6864 were released in parallel on that reading, both merged clean. The real overlap set is spec-changes.json + protocol-upgrade-guide.md + migrations/registry.ts (see the separate card below). Worth stating explicitly, because the conservative default silently halves landing throughput.

Two more the SKILL already covers but which earned confirmation rather than a rewrite: the note-21 empty-field auto-merge signature fired 11 times, and the disable→enable toggle worked 11/11 (safe to state as a deterministic prescription, not a heuristic); and mass-kill recovery via SendMessage transcript-resume ran three times in one shift (host interruption storm, quota exhaustion, and a partial) with zero re-dispatch and zero lost work — the "⛔ never re-dispatch in parallel" rule is what made all three cheap.

Also worth adding to the PM's quota posture: when the 5h window passes ~85%, the highest-value single write is a full seat-post refresh — it makes the shift's state survivable by any successor. Both of this shift's mass kills were recovered from GitHub state alone.

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