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live Unverified (seed import) AI & Agents 8 tools imperative implementation

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Speak naturally and watch your ideas become clear visual diagrams.

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 2 · Act 6 · Transact 0 · Score: Not yet scored

Tool inspector

addNode

act imperative

Add one labeled node to the current diagram. The renderer uses a native Excalidraw circle for every node; use the label and color to communicate whether it is a process, entity, decision, or outcome.

Input schema

Property	Type	Required	Description
`id`	string	yes	—
`shape`	string	yes	—
`label`	string	yes	—
`color`	string	no	Optional semantic color for the circle.
`image`	object	no	—

Raw JSON schema

{
  "type": "object",
  "additionalProperties": false,
  "required": [
    "id",
    "shape",
    "label"
  ],
  "properties": {
    "id": {
      "type": "string",
      "minLength": 1,
      "pattern": "^[a-zA-Z0-9_-]+$",
      "maxLength": 48
    },
    "shape": {
      "type": "string",
      "enum": [
        "rectangle",
        "circle",
        "diamond"
      ]
    },
    "label": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80
    },
    "color": {
      "type": "string",
      "maxLength": 32,
      "description": "Optional semantic color for the circle."
    },
    "image": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "src"
      ],
      "properties": {
        "src": {
          "type": "string",
          "minLength": 1,
          "maxLength": 2000000,
          "description": "Public HTTPS image URL or data:image/* URL."
        },
        "alt": {
          "type": "string",
          "minLength": 1,
          "maxLength": 140,
          "description": "Short accessibility description."
        },
        "caption": {
          "type": "string",
          "minLength": 1,
          "maxLength": 140,
          "description": "Optional teaching caption shown below the image."
        }
      }
    }
  }
}