Edit videos locally using ffmpeg. Trim, concat, resize, speed, overlay, extract audio, compress, and convert. Use when: (1) Trimming or cutting video segments, (2) Concatenating multiple clips, (3) Resizing video for social platforms, (4) Extracting or replacing audio, (5) Compressing video, (6) Converting video formats, (7) Getting video info.
Install
npx skills add calesthio/OpenMontage --skill video-editnpx skills add calesthio/OpenMontage --skill video-edit -a claude-code -gnpx skills add calesthio/OpenMontage --skill video-edit -a codex -ggemini skills install https://github.com/calesthio/OpenMontage.git --path .agents/skills/video-editgh skill install calesthio/OpenMontage video-editgit clone --depth 1 https://github.com/calesthio/OpenMontage /tmp/calesthio__OpenMontage
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/calesthio__OpenMontage/.agents/skills/video-edit ~/.claude/skills/video-edit # Claude Code
cp -R /tmp/calesthio__OpenMontage/.agents/skills/video-edit ~/.agents/skills/video-edit # Codex, Cursor, Gemini CLI, Copilot, OpenCode