get_data_model

Returns a reference for DEON canvas items: item types, the coordinate system, per-type fields and value shapes, and the full list of shape names. An agent should call this when unsure how to create or update an item.

Tool name: get_data_model

Parameters

None.

Returns

A JSON reference document. The key sections:

• overview — the coordinate system: world units, position = top-left {x,y}, size = {width,height}, angle in degrees (0–360), colors as CSS strings.
• itemTypes — the eight item types (label, sticky-note, shape, connector, image, web, svg, document) and which tool creates each.
• commonFields — position, size, scale, angle with their value shapes and defaults.
• label, shape, connector, image — per-type fields and constraints (e.g. label auto-size rules, connector start/end points).
• updateItemProperty — example property names and value shapes for update_item_property.
• shapes — the full list of shape names accepted by create_shape.

Excerpt:

{
  "overview": "A DEON project is a map of items on an infinite 2D canvas. ...",
  "itemTypes": {
    "label": "auto-sized text (create_item kind=\"label\")",
    "sticky-note": "preset note with background (create_item kind=\"sticky\")",
    "shape": "geometric shape (create_shape)",
    "connector": "line/arrow between items (connect_items)",
    "image": "raster image (upload_image)",
    "web": "embedded web page",
    "svg": "vector image",
    "document": "document file (PDF/Word/PowerPoint)"
  },
  "commonFields": {
    "position": "{ x: number, y: number } — top-left in world units (default 0,0)",
    "size": "{ width: number, height: number } — min 5 per dimension",
    "scale": "number > 0 (default 1)",
    "angle": "number 0–360 degrees (default 0)"
  },
  "shapes": ["Rectangle", "RoundedRectangle", "…"]
}

Example

Called automatically by an agent before an unfamiliar update_item_property call.

{}