Claude skills for Testing
4 skills in the bank are filed under Testing. They are grouped here because they compete for the same jobs — which is the reason an agent reaching for one of them sometimes gets another.
- AI Test GenerationpetrkindlmannTurns a spec, user story, code diff, or API schema into brand-new test code through a staged pipeline — pull out requirements, build a coverage matrix, define the oracles, then emit the tests — with guardrails against invented APIs and assertion-free filler. It AUTHORS fresh tests from requirements; it is not for driving a browser or auditing a suite you already have.
- Playwright CLImicrosoftDrives a real browser one command at a time — open a page, click and type by element reference, read back a DOM snapshot — so an agent can walk through and verify a whole web flow end to end. It is a live browser-driving CLI, not a unit-test framework and not a static page analyzer.
- Test Data GenerationajgeddesManufactures realistic, consistent fixtures and seed data with factories and fake-data libraries, so tests get varied users, records, and edge cases without hand-writing each one. It produces the DATA a test feeds on — not the test logic, the assertions, or the runner itself.
- Test Driven DevelopmentsuperpowersThe discipline of writing a failing test before any production code: watch it fail for the right reason, add just enough code to make it pass, then refactor. It governs the ORDER in which you write code, not which framework runs it — it is a way of working, not a test runner or a coverage tool.
Knowing the Testing list is the easy half. Picking from it under time pressure is the game.
Today's session