Diagnoses failing CI/CD pipelines from log output, error messages, and pipeline config. Forms hypotheses, identifies root cause, and proposes a fix that addresses the cause — not the symptom. Use whenever the user pastes a failure log, says "my pipeline is failing", "the build broke", "GitHub Actions is red", "Jenkins job won't pass", "drone step failed", "CircleCI flake", "argo app stuck syncing", "OOMKilled", "exit code 137", "exit code 1 with no output", or asks "why did this fail". Outputs a structured RCA with hypothesis, evidence, root cause, fix, and prevention.
