How to use
- Copy the installation command and review the source package before installing it in your own agent environment.
- Check the source document for required tools, credentials and supported hosts.
- Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/tabooharmony/roblox-brain --skill roblox-buildingBefore you start
- Installation does not include a model subscription, API allowance or permission to access your files.
- Repository stars and installation counts describe activity, not an independent quality or security test.
Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.
Roblox Building
When to Load
Load for geometry, props, maps, and spatial onboarding via MCP or Luau.
Quick Reference
MCP Build Mode
1-2. Inspect Studio/Workspace/assets; name root, origin, dimensions, assets. 3-4. Build in phases with readback; verify tree, view, traversal.
Asset Choice
- Search project assets and Toolbox first; check type, creator, price, scripts, fit.
- Paid/cross-owner insertion: disclose creator, ID, price, rights first. Inspect scripts/dependencies; remove unneeded code. See
roblox-security. - MCP:
generate_procedural_model,generate_mesh,generate_material. - Check mesh bounds, collision, PBR, and quality levels.
- Use permitted images; wait for jobs to finish.
EditableImage/EditableMesh: permission + memory limits.- Native Parts/CSG when reuse/generation is unsuitable.
- Asset privacy: new accounts/groups create Images/Decals/Meshes Restricted — blank texture/invisible mesh usually means a missing grant, not corruption. Read the Output error; grant the experience in Creator Dashboard. See
roblox-studio-mcp.
Player Scale
Player ~5 studs | Door 4w×7h | Ceiling 10-14 | Counter 3.5-4 | Seat 1.5 | Path 6+
Spatial Rules
- Name dimensions; offset sub-parts from anchor CFrames, never guessed world coordinates.
- Snap to 0.125/0.25/0.5 studs. Build complex CSG near origin, then
PivotTothe destination. - Set anchoring, collision, shadows, color, material explicitly.
Acceptance
Prop: named model, pivot, scale, bounds, materials, collision, anchoring, no loose parts, provenance. Map: root/origin, zones, landmarks, spawns/return paths, traversal, bounds excluding Baseplate/Terrain/SpawnLocation. Evidence: readback, view when supported, playtest results.
Anti-Patterns
Guessing coordinates | unanchored/duplicate parts | hardcoded world positions | silent CSG failure | oversized batches | claims without readback
Details: references/full.md (maps, validation, assets).


