cross-repo-issue-closer.yml here is the pre-hardening vintage of framework's copy: it closes a foreign PULL REQUEST, reports refusals as green, and has no harness

[os-steve]

Filed unassigned by the domain:devx os-dev seat while landing objectstack-ai/objectstack#9711 (which fixes the first item below in the framework repo's copy of this same workflow). Recording, not claiming. Dedup-searched over the 229 open issues in this repo (workflow name, "closing keyword", the Chinese phrasing): no card covers this.

What is here

.github/workflows/cross-repo-issue-closer.yml in this repo is a copy of the framework repo's workflow, forked before four rounds of hardening landed there. Its per-target loop today is:

const { data: issue } = await github.rest.issues.get({
 owner: t.owner, repo: t.repo, issue_number: t.number,
});
if (issue.state === 'closed') {
 core.info(`${key} is already closed — skipping.`);
 continue;
}
await github.rest.issues.createComment({ ... }); // the backlink
await github.rest.issues.update({ ... state: 'closed', state_reason: 'completed' });

Four defects, in descending severity. The first is the one being fixed in the framework repo right now, and it is the reason this card exists rather than a note in that PR — the fix has to land in the repo that owns the file.

1. A closing keyword aimed at a foreign PULL REQUEST closes that PR. Every pull request is also an issue to this endpoint: GET /repos/{owner}/{repo}/issues/{N} answers for a PR number with state, state_reason and the rest, plus a pull_request key nothing here reads. Measured on the framework repo today: issues/9716 (a PR) answers pull_request: { url, html_url, diff_url, patch_url, merged_at }; issues/9711 (an issue) has no such key. Since this workflow's thisRepo is objectstack-ai/objectui, the targets it acts on are in framework — so a merged PR here whose body says Fixes objectstack-ai/objectstack#9716 would comment on that pull request and close it. GitHub's own closing-keyword parser never closes a pull request, and a wrongly-closed PR loses its merge-queue membership and any armed auto-merge in the same step; neither comes back by itself.
2. A refused close reports green. The catch is a bare core.warning, so an expired or under-scoped CROSS_REPO_ISSUE_TOKEN leaves every target open and hands the run the same conclusion as a run with nothing to do. (Fixed in framework by cross-repo-issue-closer.yml: a refused close in the per-target loop leaves the foreign issue open and the job green objectstack#9595 / PR fix(ci): a refused cross-repo close fails the job instead of passing as a warning objectstack#9645: record the failures, setFailed after the loop, keep the isolation.)
3. An already-closed target is skipped whole, so it never gets the backlink — the half of the deliverable that is not redundant. (Fixed in framework by cross-repo-issue-closer.yml: an already-closed foreign issue is skipped whole, so it never gets the backlink the workflow exists to leave objectstack#9643 / PR fix(ci): an already-closed cross-repo issue gets the PR backlink instead of being skipped whole objectstack#9716, together with state_reason handling and a per-PR marker for re-run idempotency.)
4. Nothing here has ever been executed under test. framework has scripts/check-cross-repo-closer-outcome.mjs, which extracts the inline script out of the YAML and drives it under doubles, plus a --self-test that mutates the script and requires the battery to go red. This repo has no equivalent, and the inline script is around 100 lines of code that only runs after a merge.

Severity, measured rather than assumed

Low so far, and worth stating plainly: this branch may never have had a target. In the framework repo the equivalent measurement is 0 qualified foreign closing keywords across three independent windows of the 1176 most recently merged PRs, and 0 of 1129 distinct bare-form closing-keyword targets naming a pull request number. The same measurement has not been run over this repo's merged PRs — doing that is the first step of whoever takes this card, because it decides whether item 1 is urgent or merely wrong.

Suggested shape

Port the framework file rather than re-deriving it: the guard is if (issue.pull_request) { announce and refuse } placed before the state === 'closed' branch (a merged PR reads as state: 'closed' with state_reason: null, so a guard after it still comments on someone else's pull request), and the harness comes with the scenarios that pin it. Whether this repo wants the whole family or only item 1 is a triage decision.

Ref: objectstack-ai/objectstack#9711 · objectstack-ai/objectstack#9643 · objectstack-ai/objectstack#9595 · objectstack-ai/objectstack#9575

[os-support-ai]

Triage: pm:queue · Task · tooling. Port the framework-hardened cross-repo-issue-closer.yml family rather than re-deriving it: PR-guard placed before the already-closed branch, refusal accounting (setFailed after the loop), backlink-on-closed with state_reason handling and re-run idempotency, and the extracted-script harness with --self-test. First deliverable is the measurement over THIS repo's merged PRs (it decides whether item 1 is urgent or merely wrong), as the card states. Serial note for the claimer: objectstack#9711 is in flight on the framework copy — port the post-#9711 vintage, and name that PR in the claim's serial-constraints line.

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