good-test-skilllisted

# Good Test Skill A skill that does one thing well. ## Trigger Use when user asks to do X. NOT for Y or Z. ## Iron Law Never write code without a failing test first. Write code before test? Delete it. ## Process 1. Write test 2. Watch it fail 3. Write minimal code 4. Verify it passes ```bash npm test ``` 5. Refactor ## Rationalizations | Excuse | Reality | |--------|---------| | "Too simple" | Simple breaks. Test takes 30s. | | "I'll test after" | Tests after prove nothing. | ## When Stuck | Problem | Solution | |---------|----------| | Don't know | Ask |