Check a three.js page's model files

model_audit needs no page open: path is one file or a folder (the whole project when left out), read from the file itself with no decoder. Each file gets its megabytes, triangles, materials, each texture's size and format, and whether it uses Draco, meshopt and KTX2, then a verdict against target: site (the default: 4 MB of assets, 200,000 triangles, 2048 px textures) or shopify (a GLB of about 4 MB, textures at most 2048 px on a side).

A failing file's reply ends with the shrink call that fixes it: shrink: { textures: 2048 } caps each texture at that size as WebP, textures: false drops them; every triangle is kept. With the page open, look { save: "before" } first, then shrink, point the page at the new file and look { compare: "before" } (../threejs-game/references/assets.md).

If model_audit is not among your tools, the paprika3d MCP server is not installed: it runs as npx -y paprika3d serve (stdio), and https://paprika3d.com/docs/install has each agent's line.