Use when implementing any feature or bugfix, before writing implementation code - write the test first, watch it fail, write minimal code to pass; ensures tests actually verify behavior by requiring failure first
Install
npx skills add NeoLabHQ/context-engineering-kit --skill test-driven-developmentnpx skills add NeoLabHQ/context-engineering-kit --skill test-driven-development -a claude-code -gnpx skills add NeoLabHQ/context-engineering-kit --skill test-driven-development -a codex -ggemini skills install https://github.com/NeoLabHQ/context-engineering-kit.git --path skills/test-driven-developmentgh skill install NeoLabHQ/context-engineering-kit test-driven-developmentgit clone --depth 1 https://github.com/NeoLabHQ/context-engineering-kit /tmp/NeoLabHQ__context-engineering-kit
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/NeoLabHQ__context-engineering-kit/skills/test-driven-development ~/.claude/skills/test-driven-development # Claude Code
cp -R /tmp/NeoLabHQ__context-engineering-kit/skills/test-driven-development ~/.agents/skills/test-driven-development # Codex, Cursor, Gemini CLI, Copilot, OpenCode