Zero code, one Claude Code agent: a 6-minute animated short with script, engine, voices and mixing

Greedy-Giraffe-4269 · reddit · 2026-09-24

A Redditor built a 6m36s animated short, The Octopus Who Sued the Moon (Victorian paper toy-theatre style), entirely with Claude Code — writing no code and making no art himself.

What Claude Code did: turned a joke show-listing into a script and production bible; wrote every prompt for the other models (33 art briefs, 11 voice directions, music/lyrics — Gemini, gpt-audio and Lyria only produced raw media); built OpenRouter-calling Python scripts and green-screen keying tools; wrote a 1,400-line JS canvas animation engine where every frame is a pure function of time (lip-sync by loudness, camera, paper wobble); synthesized all sound effects in code with offline Web Audio mixing; rendered via headless Chrome + ffmpeg; and QA'd its own work — using Whisper to catch a real bug where music ducked back up under dialogue.

The author shares his prompts verbatim, showing how pushes like "quality is [the constraint], push it to the max" grew a 3m37s first cut into the final film. Every asset is versioned with checksums for free re-cutting and re-rendering.

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