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[deep-report] Add failure-cascade detection to autotriage when >10 [aw] X failed issues fire within 60 min #34056

Description

@github-actions

Context

On 2026-05-22 between 03:00 and 15:30 UTC, ~27 [aw] X failed issues were filed by the workflow failure-detector — vs typical 3-5/day. Affected workflows include: Daily News, Daily Fact, Smoke Codex, Smoke Pi, Smoke Claude, Smoke Copilot, Smoke CI, AI Moderator (3×), PR Sous Chef, Dead Code Removal, Architecture Guardian, Design Decision Gate, Package Spec Librarian, Duplicate Code Detector, Sergo, DataFlow Builder, Docs Noob Tester, Daily Firewall Logs Collector, Daily AW Cross-Repo Compile Check, Draft PR Cleanup, Go Logger Enhancement, Dev, Agent Perf Analyzer, Daily Issues Report Generator, Daily Agent of the Day Blog Writer.

Probable common cause: lockfile drift (auto-filed as #34028) + persistent Codex outage (#33766) + AI Moderator action_required loop. Each cascade-related issue is noisy and crowds out genuine signal.

Proposed Quick Win

Add a window aggregator to the failure-detector workflow (or to auto-triage-issues):

  1. When ≥10 [aw] X failed issues are filed by the bot within 60 minutes, write a single rollup issue with the list of affected workflows.
  2. Add the cascade-suspected label to each individual [aw] X failed issue from the window so they can be batch-closed once root cause is patched.
  3. Optionally: skip filing new [aw] X failed issues while a cascade is active (cooldown), to prevent issue-storm.

Suggested Agent

Copilot coding agent. Likely lives in .github/workflows/ MD spec for the failure-detector or auto-triage-issues workflow.

Estimated Effort

< 2 hours of agent time.

Acceptance

  • Next cascade produces 1 rollup + labeled individual issues, not 27 unlabeled
  • Existing single-failure path unchanged

Referenced from DeepReport Intelligence Briefing — 2026-05-22.

Generated by 🔬 DeepReport - Intelligence Gathering Agent · ● 18.7M ·

  • expires on May 24, 2026, 3:50 PM UTC

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