This skill brings solid automated-testing practices to Claude Code.
It starts from the idea of testing behavior rather than implementation details.
In practice it follows the TDD cycle: write the failing test first, make it pass, then refactor.
It also uses factories like getMockX to generate test data and mocking strategies that keep tests clean and easy to maintain.
When to use
- When writing unit tests for a new function or module.
- To create factories and cut repetition across tests.
- When you want to follow the red-green-refactor TDD loop.
How to use
Ask “write the tests for this function following TDD and the testing patterns”.