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.
Install
npx skills add foryourhealth111-pixel/Vibe-Skills --skill tdd-guidenpx skills add foryourhealth111-pixel/Vibe-Skills --skill tdd-guide -a claude-code -gnpx skills add foryourhealth111-pixel/Vibe-Skills --skill tdd-guide -a codex -ggemini skills install https://github.com/foryourhealth111-pixel/Vibe-Skills.git --path bundled/skills/tdd-guidegh skill install foryourhealth111-pixel/Vibe-Skills tdd-guidegit clone --depth 1 https://github.com/foryourhealth111-pixel/Vibe-Skills /tmp/foryourhealth111-pixel__Vibe-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/foryourhealth111-pixel__Vibe-Skills/bundled/skills/tdd-guide ~/.claude/skills/tdd-guide # Claude Code
cp -R /tmp/foryourhealth111-pixel__Vibe-Skills/bundled/skills/tdd-guide ~/.agents/skills/tdd-guide # Codex, Cursor, Gemini CLI, Copilot, OpenCode