Extreme Motion Design

A motion design skill for coding agents (Claude, Claude Code, Codex and anything that reads SKILL.md). The agent writes the video as code with Remotion and React, with voice, licensed music and synced sound effects, and it is not allowed to deliver until the frames have been measured.

Leia em português

The film above is the 2.0 presentation, made with the skill. Every number on screen was measured and the imagery is public domain or CC0 (NASA, USGS, NPS and The Met), fetched by the skill with the licence checked per file.

What is new in 2.0

• Reference mode. Hand it a video and reference.py breaks it into measured structure (shots, camera moves, palette, where the visual mass sits, audio), writes a script skeleton with the same timings, and scores the new piece from 0 to 100 against the reference. Calibration: the piece against itself scores 100, using the score boundaries as cuts 86, a reel made from the same request without the reference 38, unrelated videos 23 and 24. It copies structure, rhythm and technique. It never copies frames, assets, text or sound.
• A design meter. design.py counts the signals of the frame a model produces with no direction: near black with one accent, a giant condensed face on the left margin, decorative mono, everything in caps, the same composition in every scene. It flagged my own 1.3 reel (4 signals) and the template example (3). The 2.0 film scores 0.
• A design reference. references/design.md covers composition, type, colour, texture, real imagery and launch film structure, each rule with its source, plus six named art directions to propose from.
• Real imagery with the licence checked. stock.py fetches photo and video from Wikimedia Commons (CC0 and public domain only), NASA, Openverse and The Met, and records the evidence read from the API for every file.
• Face and hand tracking in track.py, for graphics pinned to a body.

Why it exists

An agent writing video code cannot see what it renders. Left alone it ships text cut by the frame edge, captions over a face, the same card sliding into every scene, and audio that clips. I built the skill around that blind spot:

• The audio is the clock. One roteiro.json produces the voice phrase by phrase, the score and the named cues. No scene holds a hand typed frame number.
• The direction is a contract. Before any scene exists the piece declares its concept, its visual law, its motif and the layout and entrance of every scene. The lint rejects a project without it, and rejects one where every scene is laid out the same way.
• The text is measured, not eyeballed. A probe reads every text box from the DOM of each still and the background from the pixels. Cut off, overlapping, too small, low contrast or outside the safe area fails.
• Someone else reviews. The contact sheet goes to a reviewer with a clean context that never saw the code.
• The final file passes a numeric gate. Codec, loudness, true peak, flashes per second, one frame pops, loop seam, contrast against the stills.

What the gates caught while making this reel and a second one built on phone footage

These are real lines from the session, not examples I wrote for the README.

Every one of them was fixed before delivery, and four of them became fixes in the skill itself.

The same request without the skill

I ran the same request through the same model with the skill forbidden, plain Remotion only, and no paid voice. It is the honest comparison, so here it is with what I measured.

What I take from it: a good model already makes a good looking frame without help. The skill does not buy taste. It buys sound, a clock, measured text, true numbers and a second pair of eyes, and it costs time.

Gallery

Install

Claude Code (plugin)

/plugin marketplace add dev-isaacmello/extreme-motion-design
/plugin install extreme-motion-design@extreme-motion-design

Claude Code, Codex, Cursor and others (skills CLI)

npx skills add dev-isaacmello/extreme-motion-design

Claude (claude.ai and the desktop app)

git clone https://github.com/dev-isaacmello/extreme-motion-design
cd extreme-motion-design/skills
zip -r extreme-motion-design.zip extreme-motion-design/

Upload the zip in Customize > Skills. The zip must have the extreme-motion-design/ folder at the top.

Updating

• Plugin: claude plugin update extreme-motion-design@extreme-motion-design and restart.
• skills CLI: run npx skills add again.
• claude.ai: remove the old skill and upload the new zip.

Use

Ask in plain language. The skill instructions are written in Portuguese and the agent follows them in any language.

a 20 second 16:9 video with a calm pt-BR narration presenting our annual plan launch

a 9:16 reel from this phone video, with the caption following my hand

animate this logo in 4 seconds and loop it seamlessly

How a video is made