Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLIAbout this skill
Test-driven development substrate for solo + small-team builds. Iron-law red-green-refactor with dual-runtime examples (Vitest for TypeScript/Next.js, pytest for Python/FastAPI), regression-test-for-every-bug pattern, property-based testing for invariants, bilingual test-fixture handling, and best-of-best-aware "pick the test design and ship" stance. Use when the user says /tdd, "write tests first", "red-green-refactor", "regression test for X", or is about to add a feature or fix a bug on any code path. Covers JavaScript/TypeScript + Python; not strictly enforced for Bash, Rust, or Go (defer to runtime-native test discipline there).
Quick start
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Review, license & listing details
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About scan coverage and limitationsAbout this listing
- Category
- Engineering
- Reported license
- MIT
- 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.