What is visio-skill?

Visio Skill is a plugin for AI coding assistants that lets them generate real, editable Microsoft Visio diagram files (.vsdx) directly on your Windows computer. The README is written in Chinese, but the project itself works in English as well. Instead of producing static images, it creates proper Visio files you can open and keep editing in Microsoft Visio. The way it works: when you ask a supported AI tool (such as Cursor or a similar agent) to draw a diagram, the AI reads the skill's instruction file, translates your request into a structured JSON description of pages, nodes, and connections, then runs a PowerShell script that calls the Visio COM interface to render the file. The whole process happens in the background without you needing to write any JSON or run any scripts yourself. The skill supports several diagram types: flowcharts, architecture diagrams, swimlane diagrams, network topology diagrams, and UML sequence diagrams. For sequence diagrams, it can automatically position lifelines, activation boxes, and message arrows, and it handles synchronous calls, asynchronous calls, and return messages. Coordinates in the JSON use explicit inch-based values so layouts come out consistent. To install it, you clone the repository into the skills directory of your AI tool, such as the folder where Cursor or a similar assistant looks for skills. After that, you just describe what you want in the chat and the AI handles the rest. Requirements are Windows, a licensed copy of Microsoft Visio installed locally (so the COM interface is available), and PowerShell. There is no web service or cloud component, the diagram generation happens entirely on your machine through Visio's automation layer.