scan disks, folders, mounted paths, or uploaded file manifests to find redundant duplicate files and duplicate directory copies. use when the user wants file deduplication, directory-first duplicate detection, storage cleanup, canonical-copy selection, duplicate-to-canonical reference mapping, hardlink or symlink plans, dry-run reports, or storage space saving analysis.
Install
npx skills add host452b/polish --skill file-singlifynpx skills add host452b/polish --skill file-singlify -a claude-code -gnpx skills add host452b/polish --skill file-singlify -a codex -ggemini skills install https://github.com/host452b/polish.git --path skills/file-singlifygh skill install host452b/polish file-singlifygit clone --depth 1 https://github.com/host452b/polish /tmp/host452b__polish
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/host452b__polish/skills/file-singlify ~/.claude/skills/file-singlify # Claude Code
cp -R /tmp/host452b__polish/skills/file-singlify ~/.agents/skills/file-singlify # Codex, Cursor, Gemini CLI, Copilot, OpenCode