happier-ci-stabilize

# Happier CI Stabilization Drive a failing CI or release run to an evidence-backed terminal result with the fewest expensive reruns. This skill owns failure collection, failure clustering, stabilization sequencing, CI cleanup decisions, monitoring, and recovery selection. It does not grant release authority or replace the test-quality rules in `.agents/skills/happier-testing`. ## Use the existing owners - Read and apply `.agents/skills/happier-testing/SKILL.md` before changing tests, fixtures, mocks, testkits, timeouts, or lane selection. - Use `.agents/skills/happier-implement/SKILL.md` for repository corrections and its RED -> GREEN requirement for behavior changes. - Resolve privileged publication through `.agents/skills/happier-release/SKILL.md`; this skill never invents release authority. - After a coherent validated 0.2 correction, use `.agents/skills/happier-port-0-2-to-0-3/SKILL.md` once for an evidence-backed 0.3 disposition. Read [failure-collection.md](references/failure-collection.md) for a failing run, [ci-cleanup.md](references/ci-cleanup.md) before simplifying CI/tests, and [nightly-recovery.md](references/nightly-recovery.md) before rerunning or resuming a release. ## One stabilization loop 1. **Bind the attempt.** Record repository, workflow, run ID, attempt, event, head SHA, branch, and status. Never diagnose “latest” after a branch moves. 2. **Collect once.** Let independent safe jobs reach terminal state. Then run `scripts/collect-actions-failures.mj...