Individual skill
tdd-guide
Test-first development route for TDD, writing failing tests first, RED -> GREEN -> REFACTOR, and behavior-changing feature/bug/refactor work. Do not use for already-failing test root-cause debugging, test-report packaging, or final completion evidence.
bundled/skills/tdd-guide/SKILL.md
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- Last checked
- Nov 11, 2026
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- Nov 9, 2026
- License
- Apache-2.0
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SKILL.mdcore · 1,820 bytes
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# tdd-guide (Codex Compatibility)
Use this skill for all feature work, bug fixes, and refactors that change behavior.
## Routing Boundary
Use this skill when the user wants to build or change behavior through tests:
- TDD / test-driven development
- write failing tests first
- test-first implementation
- RED -> GREEN -> REFACTOR
Do not use it when tests are already failing and the user wants root cause; route that to `systematic-debugging`. Do not use it when the user only wants a test/coverage report; route that to `generating-test-reports`.
