world-builder

Describe the world in concrete terms, such as roads, rivers, and fields, and the Skill produces a single world/index.html file. The output is a walkable first-person scene with block placing, breaking, and a day/night cycle that runs entirely offline.

The Skill inlines three.js and audio directly into one HTML file so no CDN or build step is needed at runtime. It generates seeded terrain, pointer-lock first-person controls, a crosshair with block editing, and a five-slot hotbar.

Yes, all three.js code and audio are inlined into the single HTML file, so it runs entirely offline. The file can be loaded directly by a web-viewer pane or any browser without network access.

Yes, terrain is generated from a seeded noise function, so the same description and seed produce the same world every time. The Skill also supports running node tools/check.mjs with repeated seeds to verify model invariants.

Flat output happens when materials are not procedurally textured. The Skill requires noise-based texturing with multiple tones for grass, dirt, stone, and wood so the world reads as real voxels rather than colored cubes.

The world must stay small, a few dozen blocks per axis, to remain walkable and performant in one file. Large-scale infinite terrain, multiplayer, and external asset loading are outside the scope of this single-file approach.