Mermaid Diagram

This generates Mermaid diagrams from natural language descriptions, supporting 20+ diagram types from flowcharts to ER diagrams to Gantt charts. What's smart here is the verification loop: it actually renders the diagram with the Mermaid CLI, reads the PNG output, and does a strict visual review checking that arrows point to the right targets and blocks contain the right labels. If something's off, it fixes and re-renders up to three times. You get three files out: the raw .mmd source, a markdown wrapper for GitHub previews, and a rendered PNG. The workflow is thorough, maybe even rigid, but that's the point when you need diagrams that are actually correct instead of plausible looking.

Install to Claude Code

npx -y skills add wanshuiyin/auto-claude-code-research-in-sleep --skill mermaid-diagram --agent claude-code