A town an AI agent built

The town renders from the project's own entry file with no console errors, and every documented check passed. Final report follows.

Report

Website pages used: /docs (overview), /docs/quickstart, /docs/threejs, /docs/customize (including the variants section), /docs/capabilities, /docs/claude-code, /docs/troubleshooting. The MCP server supplied the kit index, the capabilities of house-01, cafe-01, townhall-01, bench-01 and street-lamp-01, and the Three.js integration guide.

Installed: stylized-town@0.4.0 (256 files, CANDIDATE_UNRELEASED, evaluation licence) into public/assets/stylized-town with the local CLI, pinned in assets.lock.json. SDK stays at the pre-installed 0.5.0 packages (runtime-three, asset-cli, contracts, customization, runtime-r3f) with three 0.186.1. The token was read from the environment only. A scan of every project file for the token value found nothing.

Scene src/scenes/town.scene.json (schema 1.1.0, 25 instances of 12 assets, 24 snapped). Only the first road tile has coordinates. Everything else uses attach_to:

• Street: four straight road tiles and one crosswalk tile chained east to west by their road connectors.
• Furniture on sidewalk sockets: four street lamps, three benches (walnut, blue without armrests, one at 0.9 scale), two litter bins, a mailbox, a street tree and a conifer.
• Two variants of the same asset, house-01@0.2.0, snapped by their lot fronts to the road sides. House A: glazed door, shuttered windows, hip roof, paving walls, curb-stone roof, chimney. House B: panelled door, framed windows, gable roof, leaf walls, terracotta roof, no chimney.
• Cafe-01 with terrace and awning visible, panelled door, lantern-glow walls.
• Townhall-01 with its flag shown and curb-stone walls, facing the street from the south side.
• Two lawn tiles snapped to the road sides as a small park, with a tree and a light-oak bench on their sockets.

src/main.ts imports the scene, loads the kit with AssetLibrary.fromKit and assembles it with the optimize option on, so repeated meshes are GPU-instanced as the town grows. The status bar reports 87 draw calls instead of 174. OrbitControls were added for navigation.

Could not be done:

• Flat roof on a house. The roof slot allows only the gable and hip roof parts. The CLI dry run refused it with INCOMPATIBLE_PART / PART_NOT_ALLOWED. Documented alternatives: pick roof-gable-01 or roof-hip-01, or use a different building model for a flat parapet roof (cafe-01 or shop-01). A new roof shape is L4 geometry authoring, which this kit does not include.
• Three-storey town hall. The town hall declares only flag and wall-color. The dry run refused storeys with UNSUPPORTED_OPERATION / UNKNOWN_CAPABILITY. No building in the kit has more than two storeys, and no geometry operation exists. The documented alternative is another asset or L4 authoring outside the SDK. The town hall stays at its authored two storeys with the flag.

Validation results:

• agent-ready-assets verify: PASS, 256 files match the lockfile.
• scene validate --resolve: PASS, all 24 snaps mate at 0.000 mm. A first draft failed with INSTANCES_OVERLAP because tree canopies reached neighbouring props on the lawn tiles. The park was thinned to fix it.
• verify-project --browser chromium: LOCALLY_VALIDATED, 25/25 instances placed, ground contact and snaps PASS, screenshot and report in .agent-ready-assets/verify/.
• tsc --noEmit: clean. pnpm build: succeeded, with only Vite's documented chunk-size warning.
• Extra check: the production build served with vite preview rendered the town in Playwright's Chromium with no errors. Screenshot at .agent-ready-assets/main-ts-preview.png.

Package scripts typecheck, kit:add, validate and verify-project were added so the checks can be repeated. The build copies the kit into dist/, which the evaluation licence does not allow to be published.