Provides a concise Test-Driven Development workflow document for agents that write code. It prescribes the red–green–refactor cycle, test structure (arrange/act/assert), and rules to keep tests fast, independent, and meaningful.
Use this skill whenever an agent is asked to implement code, add features, or improve reliability — especially for maintainable software engineering tasks where tests should guide development. Suitable for feature work, bug fixes, and when enforcing test coverage.
Agents that generate or run tests and code — builder-style code agents, local CI runners, and any agent integrated with testing frameworks.
This skill has not been reviewed by our automated audit pipeline yet.
