Inspect a 3D model

Code that loads a model depends on facts only the file knows: node names, clip names, bone names, scale, required decoders. Guessed names fail silently (getObjectByName returns undefined, a missing clip plays nothing), so read the file before writing code against it.

Paths: <this-skill-dir> is the directory containing this SKILL.md. Replace it with that absolute path, quote paths in commands, and keep the working directory in the user's project. Bundled scripts need only Node 22+; render.mjs also needs a Chrome-family browser.

Process

1. If the model is not .glb or .gltf (FBX, OBJ, USDZ, STL, DAE, PLY), read references/converting.md and convert it first. Everything downstream assumes glTF.
2. Run the bundled script. It has no dependencies and never decodes geometry, so it is fast on any file, compressed or not: