Test driven development (TDD) is a way to write software by first writing a test and then making it pass. You use the red-green-refactor loop. This method helps you build features or fix bugs with confidence. It focuses on what the system does, not how it does it.
You write tests through public interfaces only. Good tests describe behavior and survive internal changes. Bad tests break when you refactor code. This skill teaches you to avoid those mistakes.
Developers who want clean, reliable code will benefit. It also helps when you need integration tests or want to follow a test first approach. Follow the vertical slice workflow to stay on track.
Global
mkdir -p ~/.claude/skills/tddProject
mkdir -p .claude/skills/tddSource Repository
Grill Memattpocock/skills
Stress-test your plan with relentless questions until we both understand
Tddmattpocock/skills
Write one test at a time then code to make it pass
Test Driven Developmentobra/superpowers
Write a failing test first then code just enough to pass
Qamattpocock/skills
Turn bug reports into GitHub issues through natural conversation without technical fuss
Migrate To Shoehornmattpocock/skills
Replace unsafe as assertions with type-safe partial test data easily
Webapp Testinganthropics/skills
Test your local web apps quickly with Playwright automation and screenshots
Playwright Best Practicescurrents-dev/playwright-best-practices-skill
Master Playwright testing with best practices for reliable and fast tests
Google Agents Cli Evalgoogle/agents-cli
Run evaluations on your AI agent, find failures, and improve its quality step by step