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Generate flowcharts, sequence diagrams, ERDs and other visuals from text using the Mermaid CLI (mmdc).
Expert skill for converting Markdown-like diagram syntax into production-ready diagrams using Mermaid CLI (mmdc). Supports flowcharts, sequence diagrams, class diagrams, ERDs, state machines, Gantt, pie and git graphs, and exports to SVG/PNG/PDF. Includes practical commands, theming, sizing and Docker options for headless rendering.
Use this skill when you need to generate diagrams from text in documentation, READMEs, wikis, or automated docs pipelines. Good for quick flowcharts, sequence visualizations, and batch exports (CI/CD or docs builds). Not ideal for heavy icon-based architecture diagrams where tools like D2 may be better.
Best used by agents that can run shell commands or invoke CLIs (Copilot/Codex/GitHub Actions/Claude Code) where the agent has access to npm/npx or Docker to run mmdc.
Comprehensive Mermaid CLI reference skill covering flowcharts, sequence diagrams, ERDs, class diagrams, state machines, Gantt charts, and more. No bundled scripts — purely instructional. Well-organized with clear when-to-use guidance, diagram type examples, styling options, Docker usage, and troubleshooting. The --no-sandbox tip for Linux Puppeteer is noted without strong security caveats.
No scripts to execute. Static analysis only. Skill is a thorough reference document for Mermaid CLI usage. Minor security note: suggests --no-sandbox for Puppeteer on Linux without emphasizing that this reduces security and should only be used in trusted environments.
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