Auto-Diagram: Zero-Config Codebase Visualization

Analyze ANY codebase and generate a complete architecture diagram automatically. No description needed — you read the code and figure out what to draw.

Prerequisite Check

Before starting analysis, verify the Excalidraw MCP server is available:

mcp__excalidraw__read_diagram_guide()

If this fails, tell the user:

"The Excalidraw MCP server isn't running. Start the canvas server first: npx excalidraw-toolkit start The default port is 3000. To use a different port, re-init and start with the same port: PORT=3001 npx excalidraw-toolkit init && PORT=3001 npx excalidraw-toolkit start Then open http://localhost:3000 (or your configured port) and try again."