mermaid

Render Mermaid diagrams from fenced code blocks in Markdown documents.

2|Updated Mar 25, 2026

Search Tags:#architecture #markdown #mermaid #diagrams #flowcharts #sequence-diagrams #er-diagrams

Ready to run

npx skills add https://github.com/slabgorb/sidequest --skill mermaid-slabgorb

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: mermaid
Source: https://github.com/slabgorb/sidequest/tree/main/.pennyfarthing/skills/pf-mermaid
Command: npx skills add https://github.com/slabgorb/sidequest --skill mermaid-slabgorb

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Mermaid diagrams let you render architecture, sequence, ER, and flowcharts directly from code blocks in Markdown, eliminating the need for separate diagram tools in quick documentation.

Core Features & Use Cases

Diagram types: flowcharts, sequences, ERs, class, and state diagrams from Mermaid syntax.
Markdown-first: embed diagrams in docs and wikis without external tools.
Use Case: visualize system architecture or API flows in project READMEs and docs.

Quick Start

Wrap diagrams in triple backticks with mermaid as the language identifier and render them in supported markdown viewers.

Frequently Asked Questions about mermaid

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I generate diagrams from Mermaid syntax in Markdown?▼

To generate diagrams from Mermaid syntax in Markdown, wrap your diagram code in triple backticks with mermaid as the language identifier. This renders architecture, sequence, and ER diagrams directly in supported viewers without external tools.

What types of diagrams can I create using Mermaid in Markdown?▼

Mermaid in Markdown supports creating flowcharts, sequence diagrams, ER models, class diagrams, and state diagrams. You can visualize system architecture or API flows directly within your project documentation and wikis.

Do I need additional setup to render Mermaid diagrams in GitHub or GitLab?▼

You do not need additional setup to render Mermaid diagrams in GitHub or GitLab. Using fenced code blocks with the mermaid language identifier ensures native rendering across these compatible markdown editors.

Why use Mermaid syntax instead of separate diagram tools for documentation?▼

Mermaid syntax eliminates the need for separate diagram tools in quick documentation by allowing you to embed flowcharts and ER models directly in Markdown. This keeps architecture and sequence flows version-controlled alongside your code.