Debug

When to use

Use for failures, flakes, wrong outputs, crashes, and regressions.

Non-goals

• Do not jump to a fix before reproduction/localization when the bug is unclear.
• Do not treat “run all tests” as debugging by default.

Workflow

1. Reproduce or gather the strongest available failure signal.
2. Minimize the case.
3. Localize to component/file/line.
4. State root cause vs symptoms.
5. Fix only when authorized; otherwise hand back a diagnosis with evidence.