Open-Source Codex Skill Converts Text Descriptions Into Editable Draw.io Diagrams

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A developer has released drawio-mxgraph, an open-source Codex Skill that generates fully editable Draw.io files from plain-language architecture or process descriptions. Unlike typical AI diagram tools that output static images, the skill produces mxGraph XML that opens directly in Draw.io and supports node editing, connector routing, icon embedding, and layout changes. A stable node ID system allows incremental updates, meaning small edits modify only the affected elements without redrawing the entire diagram. A built-in validator checks the XML for issues such as duplicate IDs, broken edge references, and missing geometry before the file is delivered. The project is publicly available on GitHub and the developer is seeking feedback on connector routing and icon library support for AWS, Azure, and GCP styles.

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