What is codex-visio-replica-workflow?

This is a skill for Codex, an AI coding assistant from OpenAI, that takes a reference image of a diagram and recreates it as an editable Microsoft Visio file. The kinds of diagrams it handles include screenshots, whiteboard photos, architecture diagrams, flowcharts, and business process diagrams. The output is a .vsdx file, which is Visio's standard format and can be opened and modified in Microsoft Visio like any diagram you built by hand. The workflow works by having Codex analyze the reference image and produce a structured JSON plan describing the shapes, connections, labels, and layout. A PowerShell script then reads that plan and uses Visio's built-in automation interface to assemble the diagram programmatically. A second script checks whether Visio is installed and the environment is set up correctly before you begin. Installation means copying the skill folder into Codex's skills directory on your machine, then restarting Codex. The skill is designed for Windows only because it depends on PowerShell and Visio's COM automation layer, which are Windows-specific. No Visio license is included, you need an existing Visio installation. The README is brief and does not cover what diagram complexity the skill handles well or what its limitations are.