Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLIAbout this skill
Test-Driven Development and Behavior-Driven Development as design tools, not just verification. Use when shipping changes that "worked locally" but break in CI, when refactors are terrifying because no one trusts the test suite, when bug fixes keep regressing, when stack traces point at code with no covering test, when product and engineering disagree on what "done" means, when mocks have grown so deep that tests pass while production crashes, or when coverage is 90% but defects per release keep climbing. Covers red-green-refactor, classicist (Detroit) vs mockist (London) schools, Given/When/Then specs, when TDD pays back vs when it's overhead, and the most common ways teams botch it.
Quick start
- Copy the install prompt. Use the green button above this README.
- Send it to your agent. Paste it into your coding agent’s chat and send.
- Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.
Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.
0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1
Content SHA-256: 90c4b188938db7e95b441532045b38e430411cd44b3777f987b199b0aa9fa943
About this listing
- Category
- Engineering
- Reported license
- Not specified
- Listing language (estimated)
- English
- Review status
- Not individually reviewed
- Agent compatibility
- Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.