OpenClaw skill
ec-excalidraw
An OpenClaw skill that embeds an Excalidraw canvas directly into conversations. It enables users and AI agents to collaboratively draw, edit, and interact with diagrams in real-time. Diagrams can be exported in PNG or SVG format.
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How this skill works
- Generates Excalidraw diagrams (.excalidraw files) from natural language descriptions
- Uses the Excalidraw+ AI generation feature via their API
- Returns a JSON object with type 'excalidraw' and data as base64 encoded .excalidraw file
When to use it
- When an agent needs to generate an Excalidraw diagram from a natural language prompt
- When an agent needs to embed the generated Excalidraw diagram in a Markdown response
Best practices
- Self-host a collab server and set EXCALIDRAW_COLLAB_SERVER_BASE for privacy
- Ensure OpenClaw instance allows embedding external iframes
- Provide roomLink to load existing canvases
Example use cases
- Creating new Excalidraw diagrams from text prompts: Uses the create_excalidraw tool to generate a new interactive Excalidraw canvas based on a natural language description of the desired diagram.
- Embedding Excalidraw diagrams in chat: Uses the get_excalidraw_embed tool to obtain and display an embeddable iframe of an Excalidraw diagram directly in the conversation.
- Updating existing Excalidraw diagrams: Uses the update_excalidraw tool to modify an existing diagram's scene based on new instructions, enabling iterative refinements.
- Listing available Excalidraw diagrams: Uses the list_excalidraws tool to retrieve a list of all user-owned Excalidraw canvases with their IDs and titles.
FAQs
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