easels.dev WebMCP Tools, Schemas & Agent Capabilities

easels.dev

live Unverified (seed import) AI & Agents 30 tools imperative implementation

A design canvas where you and your agent edit the same HTML, in the page. Agents read and write the nodes through WebMCP tools. No plugin, no desktop app.

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

Answer 7 · Act 22 · Transact 1 · Score: Not yet scored

Tool inspector

generate_image

act imperative

Generate an image from a text prompt and place it on the canvas. It comes back as a data URI embedded in the document, so the export carries the picture rather than a link to it. Prefer set_image if you can make the image yourself — you will get a better one. Same prompt and seed gives the same image, so a retry is only different if you change something.

Input schema

Property	Type	Required	Description
`prompt`	string	yes	What the image should show.
`id`	string	no	An existing image node to fill.
`parentId`	string	no	Create a new image here instead.
`ratio`	string	no	Aspect ratio. Defaults to 1:1.
`w`	number	no	Node width in px. Defaults to the ratio.
`h`	number	no	Node height in px. Defaults to the ratio.
`x`	number	no	Offset inside the parent. Defaults to 24.
`y`	number	no	—
`seed`	number	no	—

Raw JSON schema

{
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string",
      "description": "What the image should show."
    },
    "id": {
      "type": "string",
      "description": "An existing image node to fill."
    },
    "parentId": {
      "type": "string",
      "description": "Create a new image here instead."
    },
    "ratio": {
      "type": "string",
      "enum": [
        "1:1",
        "3:2",
        "2:3",
        "16:9",
        "9:16",
        "4:3",
        "3:4"
      ],
      "description": "Aspect ratio. Defaults to 1:1."
    },
    "w": {
      "type": "number",
      "description": "Node width in px. Defaults to the ratio."
    },
    "h": {
      "type": "number",
      "description": "Node height in px. Defaults to the ratio."
    },
    "x": {
      "type": "number",
      "description": "Offset inside the parent. Defaults to 24."
    },
    "y": {
      "type": "number"
    },
    "seed": {
      "type": "number"
    }
  },
  "required": [
    "prompt"
  ]
}