← All skills
Math Explainer
A result derived on screen, one step you can follow at a time.
Math Explainer: its example films and styles →
How it works
- 1Copy the install prompt and paste it into your agent.
- 2Your agent runs mo doctor to check Node.js, FFmpeg and Chrome, and tells you how to install anything missing.
- 3Give it your material. It renders an MP4 on your computer, and you ask for changes in plain words.
Paste into Claude Code, Codex, Cursor or any agent that supports skills.
Films it made
All it takes
No API keyThis is all it needs
- A document, article or script
Dependencies
Node.js 22+, FFmpeg, Chrome. No API keys.
Before it starts, your agent runs mo doctor to check Node.js, FFmpeg and Chrome and tells you how to install anything missing; if this skill needs more (such as whisper for captions), its instructions say so.
Example prompt
Use the math-director skill to make a 1-minute film proving why 1 + 2 + … + n = n(n + 1)/2.
Style prompt (Claude Motion or Opus 5.5)
Make a 1-minute 16:9 math explainer for [viewers] that shows why [result] is true for [who will watch, e.g. students meeting this for the first time]. Use a proof a newcomer can follow from [textbook or source]; write every line of working, slide terms or shapes that carry over instead of redrawing them, check it on a small case with real numbers, and state the condition the result needs. Use only the argument in the textbook I give below; don't change a word or number. End on the result with its condition, held for 3 seconds.
Nothing to install: paste this into Claude Motion (Team or Enterprise) or give it to Opus 5.5 for a similar look. The result changes from run to run; the skill works from your own material and renders on your computer.