pm: the relay's governedReviewPlan still summons the approvers on a low-risk Tier H PR the seat may land #33540

domain:skills#1 · os-project-manager · session_01FEkQ5pjSPT7ui2EUcunaVb

Filing gate: ① (a follow-up owed by work in flight). Contract review 6886243839 of PR #33531 (card #33501) agreed with the dev's out-of-scope finding: governedReviewPlan in scripts/pm/fleet-write/execute.mjs (L809, called at L1849 to L1881) plans its reviewer requests from paths alone. Once #33501 lands, a PR the low-risk arm reads as Tier S still gets os-zhuang and hotlong requested as reviewers. That is a summons, not a block, but it puts every delegated PR back in the maintainers' queue, which is what the ruling took away.

Ruling-ref: Leehom, project chat 2026-11-14T22:42:56Z, 「同意 把低风险的 Tier H 放权给座位」

What lands

1. governedReviewPlan takes the same low-risk reading the queue guard uses (lowRiskArmVerdict / pullLowRiskReading from check-governed-merges.mjs, one reader, no second parser) and requests no approver when the reading is low-risk Tier S.
2. When the reading cannot be made (pull unread, labels unread), the plan stays as today and summons.
3. Self-test rows: a low-risk skills-wording PR plans no approver; the same PR with Clause-②: yes, a security label or a non-skills changeset plans both.

Scope

scripts/pm/fleet-write/**. Tier S. skip-changeset. Clause-②: no.

Blocked-by: #33501 (PR #33531)