Debug Error Skill

Degree of freedom: MIXED. Root-cause judgment [HIGH freedom]; the red feedback loop and verify-green re-run [LOW freedom — run exactly].

Systematic approach to debugging errors and unexpected behavior. Works with any project.

This skill vs neighbors

Skill	Owns
debug-error (this)	Diagnose one bug with hypotheses and runtime evidence before fixing
`debug-fe-be-integration`	Frontend-backend contract failures traced on both sides: 4xx/5xx, mismatched payloads
`workflow-fix-and-ship`	One bug-fix lifecycle: triage, reproduce, debug, regression test, fix, PR
`debug-sentry-monitor`	Operate Sentry: triage unresolved issues, cut noise, monitor after deploy