Mistake-proof code so misuse cannot be expressed, rather than warning against it. Use when designing an interface, schema, or state machine and the user wants it hard to get wrong ("make invalid states unrepresentable", "so callers cannot screw it up", "type-safe API", "pit of success"); when auditing existing code for footguns ("what could bite us here", "what is easy to misuse", "poka-yoke…
Install
npx skills add github/awesome-copilot --skill poka-yokenpx skills add github/awesome-copilot --skill poka-yoke -a claude-code -gnpx skills add github/awesome-copilot --skill poka-yoke -a codex -ggemini skills install https://github.com/github/awesome-copilot.git --path skills/poka-yokegh skill install github/awesome-copilot poka-yokegit clone --depth 1 https://github.com/github/awesome-copilot /tmp/github__awesome-copilot
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/github__awesome-copilot/skills/poka-yoke ~/.claude/skills/poka-yoke # Claude Code
cp -R /tmp/github__awesome-copilot/skills/poka-yoke ~/.agents/skills/poka-yoke # Codex, Cursor, Gemini CLI, Copilot, OpenCode