Drives behavior changes through tests or explicit focused checks before implementation. Use when implementing new logic, fixing a bug, changing behavior, adding edge-case handling, modifying validation, refactoring behavior-sensitive code, or after debugging identifies a root cause that needs a regression guard. Also use when Codex is about to say a bug is fixed or behavior works but no proof exists yet.
How to install test-driven-development?
pimenov/codex-first-skills-pack/test-driven-development
$npx -y skills add pimenov/codex-first-skills-pack --skill test-driven-developmentInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/pimenov/codex-first-skills-pack" --skill "pimenov/codex-first-skills-pack/test-driven-development"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/pimenov/codex-first-skills-pack" that are relevant to the current task. Run `npx skills add "https://github.com/pimenov/codex-first-skills-pack"` and select the relevant skills, then follow their instructions.
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