Trigger when: (1) User wants to create an educational/explainer video, (2) User has a vague concept they want visualized, (3) User mentions "3b1b style" or "explain like 3Blue1Brown", (4) User wants to plan a Manim video or animation sequence, (5) User asks to "compose" or "plan" a math/science visualization. Transforms vague video ideas into detailed scene-by-scene plans (scenes.md).
Install
npx skills add calesthio/OpenMontage --skill manim-composernpx skills add calesthio/OpenMontage --skill manim-composer -a claude-code -gnpx skills add calesthio/OpenMontage --skill manim-composer -a codex -ggemini skills install https://github.com/calesthio/OpenMontage.git --path .agents/skills/manim-composergh skill install calesthio/OpenMontage manim-composergit clone --depth 1 https://github.com/calesthio/OpenMontage /tmp/calesthio__OpenMontage
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/calesthio__OpenMontage/.agents/skills/manim-composer ~/.claude/skills/manim-composer # Claude Code
cp -R /tmp/calesthio__OpenMontage/.agents/skills/manim-composer ~/.agents/skills/manim-composer # Codex, Cursor, Gemini CLI, Copilot, OpenCode