What problem does it solve? Creating diagrams programmatically and confirming they rendered correctly usually requires manual canvas work and visual checking. This Skill lets you build Excalidraw diagrams through a local canvas server API and verify the result with automated screenshots. ## Core Features & Use Cases - Programmatic Diagram Creation: Create rectangles, ellipses, diamonds, text, arrows, and lines via the canvas server's REST API with a consistent color palette. - Mermaid Conversion: Convert Mermaid diagram definitions into Excalidraw elements through the /api/elements/from-mermaid endpoint. - Visual Verification: Capture headless-browser screenshots of the canvas with Playwright to confirm the diagram rendered as intended. - Use Case: Ask for a flowchart of a deployment pipeline; the Skill posts the elements to the local canvas server, screenshots the result, and shows you the rendered diagram for confirmation. ## Quick Start Use the excalidraw-diagrams skill to draw a vertical flowchart with start, process, and end nodes on the local canvas and show me a screenshot of the result.