mcp_excalidraw

Why we included this project

Architecture diagrams tend to drift from the code they describe, especially when a coding agent draws them once and moves on. This project keeps that from happening by giving the agent a live Excalidraw canvas it can draw on, screenshot to check its own layout, and adjust element by element until labels fit and arrows route cleanly, then export as a .excalidraw file you can commit next to your source. It works as an MCP server with 26 tools, a zero-config CLI, or a REST API, so it fits into most agent setups without API keys or external services. The self-correction loop is the part that matters: the agent sees its own work, catches spacing problems, overlaps, or missing labels, and fixes them before you ever look at the result. If you want diagrams that live in your repo and get refreshed when the code changes, this is a solid choice for agent-driven documentation.