Posecode is a tiny language an LLM can write, designed for physiotherapy, mobility, posture, yoga, and training, that renders to an animated 3D figure in the browser. Every joint is clamped to a safe range of motion, so the result is always anatomically plausible.
Agent skill for browser motion graphics — openers, promos, bumpers, kinetic typography, and five explainer styles that move like video, not slides. Single index.html output. Works with Claude Code, Codex, Gemini CLI, Cursor.