A Plantuml Claude Skill that can generate images and help you create Plantuml digrams from source code. It can also extract plantuml diagrams from a markdown file and then generate each of those to images and create a new markdown file with image links to those diagrams.
UML-MCP Server is a UML diagram generation tool based on MCP (Model Context Protocol), which can help users generate various types of UML diagrams through natural language description or directly writing PlantUML and Mermaid and Kroki https://uml-mcp.vercel.app/mcp