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Software & DevOpsAny

Run a coding agent on a live Excalidraw canvas

Drawgent is a coding agent that works on a live Excalidraw canvas.

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Time saved
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Setup time
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Running cost
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Use case overview

Drawgent is a coding agent that works on a live Excalidraw canvas.

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Reported experience

  1. What they did

    drawgent is a single binary that connects your own Claude Code, Codex or opencode install to an Excalidraw board. It gives the agent canvas tools over MCP. You ask in a chat panel, write AGENT: notes on the canvas, or point with the laser. The agent reads the scene and a screenshot, edits live, and links each box to code.

  2. How it went

    The source gives no benchmark numbers. It lists limits: macOS builds are untested on a real Mac, Codex live attach is untested, rooms mirror one board, and images aren't synced.

  3. Worth knowing

    You need one agent already installed and logged in. Rendering needs Chrome or Chromium, and setup finds or installs one. Claude --attach forks the session instead of joining it.

Example prompts

Try with Cursor
Help me set up a workflow where a coding agent can read and edit a diagram in [Excalidraw file path or URL] as part of working on [project]. Start by generating an architecture diagram of the code in this repo, then update it when I describe a change like [example change]. Done means the diagram file is saved in the repo and matches the code, and ask me before overwriting any existing file.

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