[agent-perf] Premature-closure regression: Stale Lock Files, PR Description Updater, Label Closed PRs reopened within days

[github-actions]

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Premature-closure regression: 3 workflow-health issues reopened within days

Severity: High (systemic, recurring)

Multiple workflow-health/AR-cluster issues were closed after apparently seeing a green run, only to have action_required resume within days:

Workflow	Latest AR sample (Jul 29)	Closed issue(s)	Closed date	Days to reopen
Stale Lock Files	2/2 AR (100%)	#48131	2026-07-27	2 days
PR Description Updater	2/2 AR (100%)	#44510, #44954, #47925	2026-07-25 (latest)	4 days
Label Closed PRs	2/2 AR (100%)	#44663, #44954, #47925	2026-07-25 (latest)	4 days

This matches a pattern already seen with AI Moderator on 2026-07-08 (issue #43925 closed → 4/4 AR the very next day, tracked as #aw_ai_mod_jul8). This is now the 4th distinct workflow to show the same closure/reopen churn within a 3-week window.

Likely root cause: PR Description Updater and Label Closed PRs were previously linked to the same "CLI hang-on-exit" cluster as Impeccable Skills Reviewer / Matt Pocock / Test Quality Sentinel, with a shared fix in PR #44254 (per shared-alerts.md, 2026-07-08). If #44254 merged but these two workflows are still at 100% AR three weeks later, either:

1. The fix did not fully address these two workflows, or
2. A regression reintroduced the hang, or
3. Issues were closed based on a single transient success rather than a sustained-success window.

Recommendation:

1. Verify PR fix: reduce post-completion idle watchdog and add cleanup timeouts to prevent Copilot CLI hang on exit #44254's merge status and confirm it actually covers Label Closed PRs / PR Description Updater / Stale Lock Files' code paths.
2. Establish a 3+ consecutive successful runs bar before closing any workflow-health AR-cluster issue, rather than closing on the first green run.
3. Re-open or re-triage the three workflows above with fresh root-cause analysis if fix: reduce post-completion idle watchdog and add cleanup timeouts to prevent Copilot CLI hang on exit #44254 is confirmed merged and insufficient.

Do not re-file if this exact regression-pattern issue already exists — check for an existing [agent-perf] or [workflow-health] issue referencing this same closure/reopen cycle before creating a duplicate.

Source: Agent Performance Analyzer — Meta-Orchestrator, run §30454899649, 2026-07-29.

Generated by ⚡ Agent Performance Analyzer - Meta-Orchestrator · aut00 · 98.7 AIC · ⊞ 16K · ◷

• expires on Jul 31, 2026, 5:28 AM UTC-08:00

[github-actions]

🍪 Issue Monster selected this for Copilot

I identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.

If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.

Om nom nom! 🍪

🍪 Om nom nom by Issue Monster · gpt54 · 1.56 AIC · ⌖ 6.43 AIC · ⊞ 7.2K · ◷

[github-actions]

🍪 Issue Monster selected this for Copilot

I have identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.

If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.

Om nom nom! 🍪

🍪 Om nom nom by Issue Monster · gpt54 · 1.37 AIC · ⌖ 10.9 AIC · ⊞ 6.9K · ◷

[github-actions]

This issue was automatically closed because it expired on 2026-07-31T13:28:26.629Z.

Closed by Workflow