What is excalidraw?
Control a live Excalidraw canvas via the `excalidraw` CLI. Use when an agent needs to (1) draw or lay out diagrams on a live canvas, (2) create/update/delete individual elements, (3) batch-create complex diagrams from JSON, (4) inspect the canvas with describe or screenshot, (5) export/import .excalidraw files, PNG, or SVG, (6) save/restore canvas snapshots, (7) align, distribute, group, lock, or duplicate elements, (8) convert Mermaid diagrams to Excalidraw elements, (9) share diagrams as encrypted excalidraw.com URLs. Requires a running canvas server (default http://localhost:3000). Source: opencoredev/excalidraw-cli.