Excalidraw Diagram Generator

Generate professional diagrams as valid Excalidraw JSON. Every request flows through four phases — Understand, Propose, Generate, Validate — before the file is written. The body stays lean to respect the agent's context budget; depth lives in references/.

Part of the diagram-generator suite. For precise, editable-in-draw.io output, use drawio-generator instead; the diagram-generator umbrella routes between the two.

When to Use

The frontmatter description sets triggers and exclusions. Output: a .excalidraw file, plus a companion .md only on request.

Environment Check

If the Agent tool is available, use subagents per Subagent Architecture for large diagrams; fresh-context validation avoids single-pass context overflow. Without it (e.g., Claude.ai), run every phase inline and self-review against the 10 checks.

Repo Sync Before Edits (mandatory)

Run this once: before reading an existing .excalidraw file (Iteration), otherwise before the Phase 4 write. The sync target is the output file's directory.