Restructure code while preserving behavior. Use for extraction, consolidation, ownership moves, or cleanup where verification must bracket structural edits.
Install
npx skills add JuliusBrussee/caveman --skill safe-refactornpx skills add JuliusBrussee/caveman --skill safe-refactor -a claude-code -gnpx skills add JuliusBrussee/caveman --skill safe-refactor -a codex -ggemini skills install https://github.com/JuliusBrussee/caveman.git --path skills/safe-refactorgh skill install JuliusBrussee/caveman safe-refactorgit clone --depth 1 https://github.com/JuliusBrussee/caveman /tmp/JuliusBrussee__caveman
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/JuliusBrussee__caveman/skills/safe-refactor ~/.claude/skills/safe-refactor # Claude Code
cp -R /tmp/JuliusBrussee__caveman/skills/safe-refactor ~/.agents/skills/safe-refactor # Codex, Cursor, Gemini CLI, Copilot, OpenCode