This lets Claude generate diagrams using Mermaid.js v11's text-based syntax, covering all 24+ diagram types from flowcharts and sequence diagrams to Gantt charts and ER diagrams. It includes the CLI commands for rendering to SVG/PNG/PDF, JavaScript integration patterns, and configuration options for themes and styling. Honestly, the skill is more of a reference manual than anything clever. Use it when you need Claude to output properly formatted Mermaid syntax for documentation or when you want it to help convert diagrams to images via the CLI. The examples and syntax references make it actually useful instead of Claude guessing at Mermaid formatting.
npx skills add https://github.com/mrgoonie/claudekit-skills --skill mermaidjs-v11