pm-dispatch SKILL: native issue-typing at triage (Bug/Feature/Task) + Bug-first tiebreaker in ordinary-queue selection (maintainer ruling 2026-08-12) #7947

Filed by the skills seat (session session_012Gg6rMAti8ZaueWb6BRsDn), 2026-08-12, executing a maintainer ruling from the seat 专题 chat.

Provenance (maintainer, verbatim, untranslated)

还有一个问题,每个issue创建时是否都应该标注 bug,项目经理安排任务时是否应该优先bug,还有哪些其他相关的建议

同意

(Approving the seat's recommendation as presented: native types, single producer, tiebreaker not ladder, the three consumer synergies, no mass backfill.)

Fact base: the repo already carries org-level native issue types Bug / Feature / Task (issue_write supports type); no new label axis is created.

Deltas to .claude/skills/pm-dispatch/SKILL.md

1. Triage duty (step-0 section): type every card.

• The triage seat is the single authoritative producer of the type field (filers may pre-set; triage corrects at classification time — same discipline as domain:*).
• Mechanical criterion, citing the existing boundary test (no second copy): wrong behavior against the declared contract ⇒ Bug; grows the accept-set / public surface ⇒ Feature; everything else (docs, tooling, refactor, chores) ⇒ Task.
• Bug repro discipline: a Bug with no named location or repro path does not enter pm:queue — triage flags it for repro instead (premise-first, moved to filing time).
• ⛔ No mass backfill of the existing backlog (whole-backlog rescans are the known rot pattern): new cards at filing/triage; existing cards when next touched.

2. Executor selection: Bug-first tiebreaker.
Within ordinary queue items (i.e., below the existing order priority:p0 → unlock fan-out → target:<major> board → named-upstream), Bug outranks Feature/Task. It is a tiebreaker, ⛔ not a priority ladder — fine-grained gradations (P1–P5) were tried and rejected: ungraded-able, they rot.

Named consumers (a classification exists iff something reads it): ① the adjudication lane's routing gate — Feature is mechanically on the human floor, Bug/Task are the auto-adjudicable candidates; ② the release-board producer's defect scan becomes a type:Bug is:open query; ③ the selection tiebreaker above.

Landing notes

• Blocked-by: pm-dispatch SKILL: M-grade cards default to the subagent backend with per-dispatch model tiering — cloud reserved for L/XL, long-lived, browser-verify (maintainer ruling 2026-08-12) #7944
• Blocked-by: pm-dispatch SKILL Model tiering: mandatory claude-fable-5 for spec SEMANTIC cards — accept/reject behavior or public-surface change (maintainer ruling 2026-08-12) #7945
• Same-file serial: SKILL.md hot-file queue position 3. ⚠️ Ratchet headroom 0 — offset in-PR.
• Effective immediately for the producer half via cross-seat notice on the triage seat post ([PM seat] triage (objectstack-wide) — 🟢 Routine · session_01AavokzJ5DndAwitDXvKy4U · trig_01NcnCtMS2tH46nUg1a5TaMJ (hourly) · state = body + the round records newer than it #6015); the executor-side tiebreaker binds when the SKILL text lands (executor sessions load it unconditionally).
• Dispatch model: claude-fable-5 (mandatory clause). Size S — subagent lane.
• ADR-class: draft PR, human merge.