Testing Strategist

This one teaches Claude the testing pyramid philosophy: 70% unit tests, 20% integration, 10% end-to-end. It pushes five core principles (fast, isolated, repeatable, self-checking, timely) and aims to help you write tests at the right level of abstraction. If you've ever caught yourself writing too many brittle E2E tests or skipping unit tests entirely, this gives Claude a framework to push back and suggest better coverage strategies. It's opinionated in a good way, the kind of testing discipline that prevents "works on my machine" situations. Comes from daffy0208's ai-dev-standards repo, so it's meant to keep standards consistent across a codebase.