Quality
Use skill when reliability = main concern: prevent defects before ship or understand why something broke.
Use skills/verification/SKILL.md for selecting and reporting format, lint,
type/LSP, test, build, and security gates. This skill is for test strategy,
regression thinking, and root cause analysis.
Pick the Mode
| Situation | Read |
|---|---|
| write tests before code, drive design | references/tdd.md |
| incident analysis or recurring failures | references/rca.md |
| fix already failed once | references/rca.md, then references/tdd.md |
Shared Rules
- make failures explicit, don't mask them
- don't guess when evidence can be gathered
- small verified steps beat broad speculative changes
- always close loop with guardrail -- regression test or clearer boundary
Workflow
- decide: preventive or investigative
- load only matching reference
- work in small verified steps
- close loop with regression test or clearer guardrail