excalidraw

excalidraw diagram (uml-mcp)

diagram_type: excalidraw
Backend: excalidraw
Output formats: svg

Excalidraw whiteboard-style diagrams

Load the workflow skill uml-mcp-diagrams for URL-first replies, progressive discovery, and which MCP tool to call. This file is notation only; it does not add an MCP tool.

Styling

• Hand-drawn look is built-in; keep stroke colors high-contrast.
• No MCP theme param.

Starter template

{"type":"excalidraw","version":2,"source":"kroki","elements":[{"id":"r1","type":"rectangle","x":50,"y":50,"width":150,"height":80,"angle":0,"strokeColor":"#000","backgroundColor":"#fff","fillStyle":"solid"},{"id":"t1","type":"text","x":80,"y":78,"text":"Label","fontSize":20}],"appState":{"viewBackgroundColor":"#fff"},"files":{}}

Example

{"type":"excalidraw","version":2,"source":"kroki","elements":[{"id":"rect","type":"rectangle","x":100,"y":100,"width":200,"height":100,"angle":0,"strokeColor":"#000","backgroundColor":"#fff","fillStyle":"solid"},{"id":"text","type":"text","x":150,"y":130,"text":"Hello","fontSize":20}],"appState":{"viewBackgroundColor":"#fff"},"files":{}}

Render with uml-mcp

1. Set diagram_type to excalidraw exactly.
2. Call validate_uml when the source is untrusted (prefer strict: true for Mermaid sequence).
3. Call generate_uml, generate_uml_image (chat PNG), or generate_uml_batch.
4. Pass theme when this skill's Themes section lists supported values.
5. Surface the returned url / playground (see the workflow skill).

Confirm formats with uml://formats or list_diagram_types when unsure.