Heptareel — Development skill for Claude Code

heptareel

**Seven motion-reel styles, one prompt each, zero keyframes.**

An agent skill that turns Claude Code into a motion designer for vertical reels. You pick a style (or describe your own) and it:

1. storyboards the reel as a beat map + 4 key stills,
2. stops for your approval,
3. builds it as one HTML canvas file where every frame is seek(t), a pure function of time,
4. synthesizes the music and every sound effect in code,
5. renders an MP4 (1080×1920, 30 fps, −14 LUFS), reviews its own contact sheet, fixes what's weak, and hands you the final.

No After Effects, no keyframes, nothing to license.

Based on the free tutorial **"Claude motion videos, step by step"** by **@janustiu**. Its seven prompts and its base block are included verbatim with credit (see [NOTICE.md](NOTICE.md)). This repo adds the render tooling, a starter composition, and build notes for implementing each style correctly.

The seven styles

#	Style	Motion feel	Sound	Level
01	One-line graph: one pen stroke that never lifts	Continuous	Marimba, pen scratch	Medium
02	One-ball showreel: five techniques, one red ball	Hard snaps, short holds	128 BPM electronic	Easy
03	ASCII terminal: a 3D head made of characters	Smooth 3D in a rigid grid	Minimal techno, key clicks	Medium
04	Pixel dither: Game Boy palette, Bayer dithering	Stepped, on twos	8-bit chiptune	Easy
05	Risograph cutout: two-ink paper stop motion	Stop motion on threes	Toy piano, paper foley	Medium
06	Renaissance codex: a quill-drawn machine takes flight	Hand rhythm, one fast flight	Lute, quill scratch	Hard
07	Ink in water: 30,000 particles bloom into a word	Slow motion, organic	Ambient piano, no drums	Hard

Start with **pixel dither** or the **one-ball showreel**; they usually land in one or two rounds.

Install

Claude Code, personal skill:

git clone https://github.com/baguskto/heptareel ~/.claude/skil