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sigma-studio-webmcp-demo.choco954303.chatgpt.site

sigma-studio-webmcp-demo.choco954303.chatgpt.site

live Unverified (seed import) Health & Education 26 tools imperative implementation

Sigma Studio

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

Answer 6 · Act 19 · Transact 1 · Score: Not yet scored

Tool inspector

create_overlay

act imperative

Create one drawable overlay shape, text object, or callout. kind:"text" accepts markdown for multi-paragraph rich text (headings, lists, $math$). Tables and graphs use their dedicated insert tools. Use semantic placement relative to a block when possible; use absolute page coordinates only for deliberate composition. Before the first edit, call get_agent_instructions and inspect_document. This appends to the one pending human-reviewed draft and never applies changes automatically.

Page: /sigma/

Input schema

PropertyTypeRequiredDescription
expectedRevision integer yes Revision returned by inspect_document. Required for every write.
targetId string no Anchor block ID, END_OF_DOCUMENT is not valid for overlays. Use "CANVAS" on a whiteboard document together with absolute x/y.
area string no —
id string no —
kind string yes —
x number no Absolute page X coordinate in pixels.
y number no Absolute page Y coordinate in pixels.
placement object no —
w number no —
h number no —
rotationDeg number no Clockwise rotation in degrees.
label string no —
text string no —
tex string no —
markdown string no Multi-paragraph rich text for kind:"text" only. Same Markdown rules as insert_markdown (paragraphs, headings, nested lists, fenced code, bold, italic, $...$ and $$...$$ math, \$ for a literal dollar). Mutually exclusive with text/tex/label.
points array no —
start object no —
end object no —
closed boolean no —
color string no —
fill string no —
fillColor string no —
fillOpacity number no —
strokeOpacity number no —
opacity number no —
dash string no —
size string no —
fontSize number no —
arrowheadStart string no —
arrowheadEnd string no —
tailBaseStart object no —
tailBaseEnd object no —
tailTip object no —
cornerRadius number no —
startAngleDeg number no —
endAngleDeg number no —
r number no —
rx number no —
ry number no —
stackLayer string no —
reserveSpace boolean no —
Raw JSON schema
{
  "type": "object",
  "properties": {
    "expectedRevision": {
      "type": "integer",
      "minimum": 0,
      "description": "Revision returned by inspect_document. Required for every write."
    },
    "targetId": {
      "type": "string",
      "description": "Anchor block ID, END_OF_DOCUMENT is not valid for overlays. Use \"CANVAS\" on a whiteboard document together with absolute x/y."
    },
    "area": {
      "type": "string",
      "enum": [
        "lead",
        "prompt",
        "solution",
        "hints"
      ]
    },
    "id": {
      "type": "string"
    },
    "kind": {
      "type": "string",
      "enum": [
        "rectangle",
        "circle",
        "ellipse",
        "triangle",
        "diamond",
        "pentagon",
        "blockArrow",
        "arc",
        "sector",
        "arrow",
        "line",
        "polyline",
        "curve",
        "freehand",
        "highlight",
        "text",
        "callout"
      ]
    },
    "x": {
      "type": "number",
      "description": "Absolute page X coordinate in pixels."
    },
    "y": {
      "type": "number",
      "description": "Absolute page Y coordinate in pixels."
    },
    "placement": {
      "type": "object",
      "properties": {
        "anchorBlockId": {
          "type": "string"
        },
        "position": {
          "type": "string",
          "enum": [
            "below",
            "above",
            "rightOf",
            "leftOf"
          ]
        },
        "offsetX": {
          "type": "number"
        },
        "offsetY": {
          "type": "number"
        }
      },
      "required": [
        "anchorBlockId",
        "position"
      ],
      "additionalProperties": false
    },
    "w": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "h": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "rotationDeg": {
      "type": "number",
      "description": "Clockwise rotation in degrees."
    },
    "label": {
      "type": "string"
    },
    "text": {
      "type": "string"
    },
    "tex": {
      "type": "string"
    },
    "markdown": {
      "type": "string",
      "description": "Multi-paragraph rich text for kind:\"text\" only. Same Markdown rules as insert_markdown (paragraphs, headings, nested lists, fenced code, bold, italic, $...$ and $$...$$ math, \\$ for a literal dollar). Mutually exclusive with text/tex/label."
    },
    "points": {
      "type": "array",
      "minItems": 2,
      "maxItems": 256,
      "items": {
        "type": "object",
        "properties": {
          "x": {
            "type": "number"
          },
          "y": {
            "type": "number"
          }
        },
        "required": [
          "x",
          "y"
        ],
        "additionalProperties": false
      }
    },
    "start": {
      "type": "object",
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y"
      ],
      "additionalProperties": false
    },
    "end": {
      "type": "object",
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y"
      ],
      "additionalProperties": false
    },
    "closed": {
      "type": "boolean"
    },
    "color": {
      "type": "string"
    },
    "fill": {
      "type": "string",
      "enum": [
        "none",
        "solid"
      ]
    },
    "fillColor": {
      "type": "string"
    },
    "fillOpacity": {
      "type": "number",
      "minimum": 0,
      "maximum": 1
    },
    "strokeOpacity": {
      "type": "number",
      "minimum": 0,
      "maximum": 1
    },
    "opacity": {
      "type": "number",
      "minimum": 0,
      "maximum": 1
    },
    "dash": {
      "type": "string",
      "enum": [
        "solid",
        "dashed",
        "dotted"
      ]
    },
    "size": {
      "type": "string",
      "enum": [
        "s",
        "m",
        "l",
        "xl"
      ]
    },
    "fontSize": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "arrowheadStart": {
      "type": "string"
    },
    "arrowheadEnd": {
      "type": "string"
    },
    "tailBaseStart": {
      "type": "object",
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y"
      ],
      "additionalProperties": false
    },
    "tailBaseEnd": {
      "type": "object",
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y"
      ],
      "additionalProperties": false
    },
    "tailTip": {
      "type": "object",
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y"
      ],
      "additionalProperties": false
    },
    "cornerRadius": {
      "type": "number",
      "minimum": 0
    },
    "startAngleDeg": {
      "type": "number"
    },
    "endAngleDeg": {
      "type": "number"
    },
    "r": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "rx": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "ry": {
      "type": "number",
      "exclusiveMinimum": 0
    },
    "stackLayer": {
      "type": "string",
      "enum": [
        "foreground",
        "background"
      ]
    },
    "reserveSpace": {
      "type": "boolean"
    }
  },
  "required": [
    "expectedRevision",
    "kind"
  ],
  "additionalProperties": false
}

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