ci-failure-triage

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name: ci-failure-triage description: Triage a failing CI job. Use when a pipeline run fails and you need to tell a real regression from a flaky test or an infra problem.

CI failure triage

1. Open the failing job log and find the first error, not the last one.
2. Re-run only the failing job once. If it passes, mark the test as flaky and link the two run IDs in the PR.
3. If it fails again, check whether main fails the same way. If it does, the break is not from this PR.
4. Otherwise, bisect the PR's commits and name the commit that breaks the job.