Fix the cause of bugs, not just the symptoms.
Guides debugging toward root-cause fixes backed by tests and verification.
When to use it
Use for technical problems including test failures, production bugs, unexpected behavior, performance issues, build failures, and integration problems.
It changes how the agent debugs project failures by requiring root-cause investigation, pattern analysis, hypothesis testing, and verified implementation.
What you provide
Instructs the agent to use this skill to write the failing test required before implementing a fix.
Requires using this skill before declaring the fix successful.
No additional actions listed.