Excalidraw Diagram

Most diagramming tools just give you boxes and arrows. This one has opinions about what makes a diagram actually useful. It generates Excalidraw JSON files with a built-in philosophy: diagrams should argue, not just display. For technical diagrams, it pushes you to include evidence artifacts like real API payloads, actual event names from specs, and code snippets that prove accuracy. It distinguishes between simple conceptual diagrams and comprehensive technical ones, and has specific guidance on when to use containers versus free-floating text. The whole approach is built around an isomorphism test: if you stripped all the text, would the structure alone communicate the concept? Good for architecture diagrams, protocol explanations, anything where the visual structure needs to mirror the conceptual structure.

Install to Claude Code

npx -y skills add coleam00/excalidraw-diagram-skill --skill excalidraw-diagram --agent claude-code