# plat-trunk — Browser CAD on Cloudflare Workers

> Browser-based B-Rep CAD on Cloudflare Workers. Rust/WASM kernel (truck), WebGPU rendering, Automerge CRDT collaboration. 29 MCP tools. No auth required.

## Tool Catalog (42 tools)

### cad_add_cube

Add a cube primitive

Parameters:
- `size` (number): 
- `modelId` (string): Target model ID

### cad_add_cylinder

Add a cylinder primitive

Parameters:
- `height` (number): 
- `radius` (number): 
- `modelId` (string): Target model ID

### cad_add_sphere

Add a sphere primitive

Parameters:
- `radius` (number): 
- `modelId` (string): Target model ID

### cad_add_torus

Add a torus primitive

Parameters:
- `majorRadius` (number): 
- `minorRadius` (number): 
- `modelId` (string): Target model ID

### cad_boolean_intersect

Intersect two objects (A & B)

Parameters:
- `idA` (string): 
- `idB` (string): 
- `modelId` (string): Target model ID

### cad_boolean_subtract

Subtract B from A

Parameters:
- `idA` (string): 
- `idB` (string): 
- `modelId` (string): Target model ID

### cad_boolean_union

Union two objects (A + B)

Parameters:
- `idA` (string): 
- `idB` (string): 
- `modelId` (string): Target model ID

### cad_clear

Clear all objects from the scene

Parameters:
- `modelId` (string): Target model ID

### cad_delete

Delete an object by ID

Parameters:
- `objectId` (string): 
- `modelId` (string): Target model ID

### cad_duplicate

Duplicate an object

Parameters:
- `objectId` (string): 
- `modelId` (string): Target model ID

### cad_import_ifc

Import BIM data from IFC string

Parameters:
- `data` (string): 
- `modelId` (string): Target model ID

### cad_import_scene

Import scene from JSON string

Parameters:
- `json` (string): 
- `modelId` (string): Target model ID

### cad_import_step

Import B-Rep data from STEP string

Parameters:
- `data` (string): 
- `modelId` (string): Target model ID

### cad_quick_rect_extrude

Create a rectangular sketch and extrude it to 3D in one step

Parameters:
- `depth` (number): 
- `height` (number): 
- `plane` (string,null): Sketch plane: "xy", "xz", or "yz" (default: "xy")
- `width` (number): 
- `modelId` (string): Target model ID

### cad_rename

Rename an object

Parameters:
- `name` (string): 
- `objectId` (string): 
- `modelId` (string): Target model ID

### cad_rotate

Rotate an object around an axis

Parameters:
- `angleDeg` (number): 
- `axisX` (number): 
- `axisY` (number): 
- `axisZ` (number): 
- `objectId` (string): 
- `modelId` (string): Target model ID

### cad_scale

Scale an object by sx/sy/sz

Parameters:
- `objectId` (string): 
- `sx` (number): 
- `sy` (number): 
- `sz` (number): 
- `modelId` (string): Target model ID

### cad_set_color

Set object color (RGBA)

Parameters:
- `a` (number): 
- `b` (number): 
- `g` (number): 
- `objectId` (string): 
- `r` (number): 
- `modelId` (string): Target model ID

### cad_set_style

Set object material style

Parameters:
- `objectId` (string): 
- `style` (any): 
- `modelId` (string): Target model ID

### cad_sketch_extrude

Extrude a 2D sketch to 3D

Parameters:
- `height` (number): 
- `sketchJson` (string): 
- `modelId` (string): Target model ID

### cad_translate

Move an object by dx/dy/dz

Parameters:
- `dx` (number): 
- `dy` (number): 
- `dz` (number): 
- `objectId` (string): 
- `modelId` (string): Target model ID

### cad_clear_data

[Control Plane] Wipe all local data (IndexedDB, localStorage). Requires user confirmation in GUI. Cannot be undone.

Parameters:
- `modelId` (string): Target model ID

### cad_create_model

[Control Plane] Create a new document, reset the scene

Parameters:
- `name` (string): Optional model name
- `modelId` (string): Target model ID

### cad_delete_model

[Control Plane] Delete a model from cloud storage

Parameters:
- `id` (string): Model ID to delete
- `modelId` (string): Target model ID

### cad_get_status

[Control Plane] Get system status: mode, sync state, object count

Parameters:
- `modelId` (string): Target model ID

### cad_redo

[Control Plane] Redo the last undone operation

Parameters:
- `modelId` (string): Target model ID

### cad_save_cloud

[Control Plane] Save the current scene to cloud storage with thumbnail

Parameters:
- `name` (string): Model name
- `modelId` (string): Target model ID

### cad_set_automerge

[Control Plane] Enable or disable Automerge sync

Parameters:
- `enabled` (boolean): Whether Automerge sync is enabled
- `modelId` (string): Target model ID

### cad_set_mode

[Control Plane] Switch between local (offline) and online (Worker relay) mode

Parameters:
- `mode` (string): Target mode
- `modelId` (string): Target model ID

### cad_share_model

[Control Plane] Copy a shareable URL for the current model to clipboard

Parameters:
- `modelId` (string): Target model ID

### cad_undo

[Control Plane] Undo the last operation

Parameters:
- `modelId` (string): Target model ID

### cad_health

Check CAD server and browser connectivity

### cad_schema

Get full CAD command schema

### cad_wasm_health

Test headless WASM geometry kernel

### cad_docs_index

List available documentation sections

### cad_docs_search

Search documentation by keyword

Parameters:
- `query` (string): 

### cad_docs_read

Read a documentation page

Parameters:
- `section` (string): 

### cad_docs_reference

Get third-party library reference docs

Parameters:
- `library` (string): 

### cad_model_save

Save current model to cloud storage

Parameters:
- `name` (string): 
- `description` (string): 
- `modelId` (string): 

### cad_model_load

Load a saved model from cloud storage

Parameters:
- `id` (string): 
- `modelId` (string): 

### cad_model_list

List all saved models

### cad_model_delete

Delete a saved model

Parameters:
- `id` (string):