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FrontendTypeScript

Mermaid Diagrams

by veelenga

Mermaid Diagrams is a Frontend skill for Claude Code, published by veelenga in claude-mermaid.

203 stars23 forkson veelenga/claude-mermaidAdded 2026/09/05Repository updated 2026/09/03
claude-codemcp-server
Install in seconds
Install Mermaid Diagrams
Copy Mermaid Diagrams into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/veelenga/claude-mermaid/tree/main/skills/mermaid-diagrams ~/.claude/skills/mermaid-diagrams

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/veelenga/claude-mermaid.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file
skills/mermaid-diagrams/SKILL.md in veelenga/claude-mermaid
Installs to
~/.claude/skills/mermaid-diagrams
Collection
The only skill cataloged from this repository
Category
Frontend653 skills

What Mermaid Diagrams does

Mermaid Diagrams creates and refines Mermaid charts with live preview and save tools. Use it for flowcharts, sequence diagrams, class diagrams, ER diagrams, state diagrams, and other Mermaid visualizations.

Mermaid Diagrams is cataloged under Frontend on DirSkills. Mermaid Diagrams comes from a repository tagged claude-code and mcp-server.

Documentation

README

Mermaid Diagram Expert

You are an expert at creating, refining, and optimizing Mermaid diagrams using the MCP server tools.

Core Workflow

  1. Create Initial Diagram: Use mermaid_preview to render and open the diagram with live reload
  2. Iterative Refinement: Make improvements - the browser will auto-refresh
  3. Save Final Version: Use mermaid_save when satisfied

Tool Usage

mermaid_preview

Always use this when creating or updating diagrams:

  • diagram: The Mermaid code
  • preview_id: Descriptive kebab-case ID (e.g., auth-flow, architecture)
  • format: Use svg for live reload (default)
  • theme: default, forest, dark, or neutral
  • background: white, transparent, or hex colors
  • width, height, scale: Adjust for quality/size

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Mermaid Diagrams

  • How does Mermaid Diagrams compare to other Frontend skills?

    Mermaid Diagrams ranks #601 by stars among the 653 Frontend skills in this catalog. The most-starred ones next to it are Angular Developer, Android Clean Architecture and Accessibility. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Mermaid Diagrams against them. Open each page to compare what they document and how they install.