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scripts/pm: pm:mailbox label in ensure-pm-labels.sh; every landing-ledger query (head:claude/, digest, roster) excludes pm:mailbox PRs; one-shot mailbox-open.mjs opens the empty-commit draft PR on mailbox/<login> (maintainer's word 2026-10-23) #25417
Description
Filing gate ③: a maintainer-direct task, the maintainer's words quoted verbatim. Filed from the Claude Code project "Objectstack" (account os-elon-musk) by the research thread 车队机制迁往 Projects on the maintainer's word there. ⛔ Not a claim. Lane self-applied under exception 二; grade suggested p3 · S; triage may regrade.
Reader (who acts): the domain:devx seat 1 (seat post #6023), in-seat subagent S card: scripts/pm/ensure-pm-labels.sh, the query spots named below, and one small script. No .claude/**.
The maintainer's words (2026-10-23, project thread 车队机制迁往 Projects, verbatim)
我的账户清单不固定的， 20x 周流量用完了，我就会换另外一个账户。 (06:27Z)
具体的分配应该是我人工制定的。 (06:27Z)
然后是否应该有一张总表能看到哪些账户在负责哪些车道，包括状态等 (06:38Z)
或者你不要强调是谁 (11:46Z)
你立卡并派发处理所有相关任务，跟踪落地 (12:13Z)
The research memo these cards implement: https://claude.ai/artifact/VFTHWcmKkzbah17UM8KRqm (sections 10, 13; private to the maintainer's account).
What was measured
- Mailbox PRs work (pm: mailbox PR for the cross-account wake test (never merged) #25392: woken by a relay comment in 70 s and by an
os-billcomment in 4 s) but they are PRs:Check Changesetreddened on the empty diff, and ahead:claude/ledger query (landing-operations.mdL26) would count them as awaiting landing. pm: mailbox PR for the cross-account wake test (never merged) #25392 used this thread'sclaude/project-thread-v23o7qbranch because the designated branch was the only one it could push; the real form usesmailbox/<login>. - The mailbox protocol text itself (one draft PR per lane project,
To: <login>first line, never merged, closed on handover) is a sibling skills card; this card is the tooling.
Wanted
ensure-pm-labels.shgainspm:mailbox(description: a project's cross-account mailbox PR; never merged; owes no CI; excluded from ledgers).- Every script that enumerates open
head:claude/PRs for landing (grephead:claude/andpr_readyreaders underscripts/pm/) adds-label:pm:mailbox; the daily digest and the roster (sibling card) do the same. scripts/pm/mailbox-open.mjs --repo <slug> --login <login>: creates branchmailbox/<login>frommainwith one empty commit, opens the draft PR through the relay (pr_create+labels: ["pm:mailbox"]), prints the PR number forsubscribe_pr_activity;--close <n>posts the closing line andissue_patchstate closed. Refuses if an openpm:mailboxPR for that login already exists.- A CI exemption for
pm:mailboxPRs where a workflow allows it by label (changeset check), otherwise documented as 「red by design」 in the PR body template the script writes.
Acceptance
- Label present in all three repos after the seat runs the script;
mailbox-open.mjs --self-testgreen; a dry run against objectstack prints the actions file without sending. git grep -n 'head:claude/' scripts/pmshows every hit paired with the mailbox exclusion or a comment saying why not.
Dedupe
MCP search_issues, objectstack, "pm-dispatch project forms … mailbox PR" (shared with the project-forms card) → 52 hits, none about a mailbox label or script; git grep -n -i mailbox scripts/pm .claude/skills → 0 hits. New.
Dedupe words: pm:mailbox · mailbox-open.mjs.
Generated by Claude Code
Activity
objectstack-fleet commentedon Oct 23, 2026
Claim: PM loop round 3 · 2026-10-23T13:13Z
Session:
session_012EdvwY3utqfHhXSgGvyBHB(card thread, dispatched by seat sessionsession_01LKHDniRQSWjRJyDtacwpEd)Account:
os-elon-muskBranch:
claude/project-thread-9gk9rn(the harness-pinned branch for the card thread; it names no issue, so this claim is the identity record)Worktree:
objectstack-issue-25417Domain:
domain:devxSeat:
domain:devx#1(seat post #6023)File surface:
scripts/pm/ensure-pm-labels.sh, thehead:claude/landing-ledger query spots underscripts/pmthat the card names, and one newscripts/pm/mailbox-open.mjs(with--self-testor--dry-run). The script is only written; running it (pushing amailbox/<login>branch) is outside this session. ⛔ No.claude/**. (stop on breach; explain in the report)Container & model:
S,mode:thread,model: default tier,effort: mediumClause-②: no
Metadata-protocol: none
Responsibility:
the landing ledger | head:claude/ queries in scripts/pm | every seat landing digestThread-read: none
Serial constraints cleared: none — #25415 edits
check-governed-queue-guard.mjs, not these files. #25416 (the roster) lands after this card, because it reads the label.Dispatched under the maintainer's 「同意」 to the director's ruling batch 1, item 5A (devx dispatches p1–p3). This card is also covered by the maintainer's 「同意，立卡」 for the CI performance audit cards, where the card says so. Dispatch order:
/mnt/project-files/pm-devx-seat/dispatch-25417.md.objectstack-fleet commentedon Oct 23, 2026
ACCEPT (seat review) → PR #25433 ·
domain:devxseat 1 ·session_01LKHDniRQSWjRJyDtacwpEd· 2026-10-23T14:56Zb00b1cd706: two files,scripts/pm/mailbox-open.mjs(new, +490) andscripts/pm/ensure-pm-labels.sh(+10). There is no.claude/**and no workflow change.mailbox/<login>or by theMailbox-of:body line, case-insensitive. The default route builds an empty commit withgit commit-treeand pushes it throughwith-fleet.sh. A cloud seat passes--head <its own pushed branch>, which must be ahead of base, because the relay has no ref-create op. Then onepr_createstroke, labelledpm:mailbox+skip-changeset, with nodraftkey; the seat confirmed the relay validator accepts it.--closerefuses anything that is not an openpm:mailboxPR.--dry-runis offline.LEDGER_EXCLUSION = '-label:pm:mailbox'is exported for scripts/pm: fleet roster generator — regenerate the pinned 「车队总表」 issue from seat posts, labels, assignees and PR queries (maintainer's word 2026-10-23) #25416's roster and for future landing queries. The finding that noscripts/pmquery enumerateshead:claude/PRs today matches the seat's reading; the one prose reader (landing-operations.mdL26) belongs to the skills lane.--self-test→ 40 cases in 7 batteries pass.--dry-run --login os-elon-muskprints the plan.check-governed-merges.mjs --pr 25433→ NOT governed.Lint · scoped · query-options erasure. Its checkout step hitgit fetchHTTP 408 three times (job 120436453864); that is infrastructure, not this diff. The relay re-runs onlyci.ymlruns, so the seat syncs the branch with main to get a fresh run, and lands on green.lint.yml, because wiring it is a workflow edit (Tier H). The seat may file it as an S card.