The plantuml-ascii skill generates text-based ASCII and Unicode diagrams from PlantUML notation, enabling developers and technical writers to create sequence diagrams, class diagrams, flowcharts, and other visualizations in terminal-friendly formats. It solves the problem of embedding diagrams in version-controlled documentation, terminal environments, and systems where graphical outputs aren't supported. The skill supports both pure ASCII output and Unicode-enhanced variants for improved readability.
npx skills add https://github.com/github/awesome-copilot --skill plantuml-ascii