Fix bugs with tests that prove what changed.
Guides bug fixes with focused regression checks that demonstrate the failure before the fix and success afterward.
When to use it
Use when the user explicitly requests TDD, a failing test, or a regression test, or a bug has an obvious cheap local test target; skip unclear, expensive, or integration-heavy test paths.
It changes how the agent fixes bugs by making broken behavior executable before changing production code when a clear, cheap test path exists.
What you provide
No setup requirements listed.
No additional actions listed.