Apply mental models — your own, or 21 sourced ones — to any problem. Use when user requests decision analysis, says "help me think", "apply mental model", mentions model names (inversion, bottlenecks, second-order thinking), or needs structured thinking frameworks.
Install
npx skills add cyperx84/claude-skills-mental-models --skill mental-modelsnpx skills add cyperx84/claude-skills-mental-models --skill mental-models -a claude-code -gnpx skills add cyperx84/claude-skills-mental-models --skill mental-models -a codex -ggemini skills install https://github.com/cyperx84/claude-skills-mental-models.git --path skills/mental-modelsgh skill install cyperx84/claude-skills-mental-models mental-modelsgit clone --depth 1 https://github.com/cyperx84/claude-skills-mental-models /tmp/cyperx84__claude-skills-mental-models
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/cyperx84__claude-skills-mental-models/skills/mental-models ~/.claude/skills/mental-models # Claude Code
cp -R /tmp/cyperx84__claude-skills-mental-models/skills/mental-models ~/.agents/skills/mental-models # Codex, Cursor, Gemini CLI, Copilot, OpenCode