Build behavior one failing test at a time.
software testing
Guides test-first feature and bug work through red-green cycles that produce maintainable behavioral tests.
When to use it
Use when building features or fixing bugs test-first, following red-green-refactor, or adding integration tests.
It changes how the agent implements project changes by requiring one failing behavioral test and one minimal implementation per cycle.
What you provide
No additional actions listed in the analysis.
Consults codebase-design when the public interface or placement of a test seam is in question.