Isometric Stack Build
Build a short 2.5D isometric explainer from one JSON sheet — shaded boxes assemble bottom-up on a parallel-projected grid, open into an exploded view so every layer reads, then seat back. Each piece drops with overshoot, a landing squash and a dust ring; leader-line tags name the layers; the camera only drifts. Silent, deterministic, 16:9.
How it works
npm install inside the Skill folder, then build.mjs → validate + assemble the page
stills.mjs for the build / explode / closed moments; iterate until layers read apart
render.mjs → film.mp4, verified by ffprobe + full decode