What they did
GitHub user Vincentwei1021 wrote one prompt per style, from frame-by-frame cel animation and isometric 2.5D to a cyberpunk HUD and a 9:16 variety-show edit, and gave each to Claude Opus 5.5 in a coding assistant. The agent wrote every film as a web page that can draw any moment in time, rendered the frames in headless Chrome, synthesised the music and sound effects in an audio.py script from a library of 103 instrument samples, and muxed a 10-second MP4 with ffmpeg. The 3D film was rendered in Blender with a web page adding type and grain. After each first cut, a second AI reviewed the film against a written rubric and the agent revised it, for two rounds. The repository publishes the films, the full prompts and all source, with a renderer and a prompt template for making new styles.
How it went
Fifteen finished films exist and play on the project's GitHub Pages site, with the AI jury's final scores running from 7.57 to 8.21 out of 10. Seven of the films had to be re-encoded under 28 Mb/s because the originals were too heavy to stream. The author gives no figures for time spent, tokens or cost, and no human review scores. The repository reached about 840 stars within two weeks.
Worth knowing
The quality judge was another AI, not an audience. The README names the model (Opus 5.5) but not the harness beyond suggesting Claude Code for anyone reproducing it; the fonts are not in the repository, and you need Node, Chrome, ffmpeg and Python, plus Blender for the 3D style. The point of the repository is that the prompts are reusable: swap the creative seed and keep the style's signature features.