mermaid

Name: mermaid
Availability: InStock
Author: nist0

Create, verify, and render Mermaid diagrams in GitHub Markdown files.

Updated Apr 9, 2026

Search Tags:#markdown #mermaid #github #diagram #markdown rendering

Ready to run

npx skills add https://github.com/nist0/CoDev --skill mermaid-nist0

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: mermaid
Source: https://github.com/nist0/CoDev/tree/main/.github/skills/mermaid
Command: npx skills add https://github.com/nist0/CoDev --skill mermaid-nist0

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires mermaid, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This skill addresses the challenge of creating, reviewing, and validating Mermaid diagrams within Markdown content, particularly for documentation in GitHub repositories.

Core Features & Use Cases

Markdown Integration: Seamlessly embed Mermaid diagrams in GitHub Markdown files.
Syntax Verification: Checks for errors in Mermaid snippets.
Best Practices: Promotes the use of standard Mermaid variants and labels for clarity.
GitHub Rendering: Validates rendering on GitHub's platform.
Accessibility and CI Validation: Encourages proper usage and ensures diagrams are accessible and validated in continuous integration processes.

Quick Start

To create a flowchart, use the mermaid skill by typing: !mermaid flowchart LR A --> B

Frequently Asked Questions about mermaid

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

FAQPage Schema

How do I add Mermaid diagrams in GitHub Markdown?▼

This skill helps create and verify Mermaid diagrams within GitHub Markdown files. It validates syntax and applies best practices to ensure your flowcharts, sequence diagrams, and entity-relationship diagrams render correctly on GitHub.

Why does my Mermaid diagram not render on GitHub?▼

Mermaid diagrams fail to render on GitHub due to invalid syntax. This skill provides syntax verification to catch snippet errors and enforces standard Mermaid variants and labels, ensuring your diagrams display properly.

Can I validate Mermaid syntax in continuous integration?▼

Yes, you can validate Mermaid syntax in continuous integration. This skill ensures diagrams are accessible and validated within CI processes by checking snippet errors and promoting proper usage before changes are merged.

Does this tool support creating sequence diagrams and flowcharts?▼

Yes, this tool supports creating sequence diagrams and flowcharts. It assists in generating these diagram types along with entity-relationship diagrams, applying standard Mermaid variants for clarity and proper rendering.

Do I need the Mermaid library to render diagrams in Markdown?▼

You need the Mermaid library for rendering and validation. This skill employs Mermaid rendering on GitHub and uses the library to verify syntax and ensure your diagrams follow best practices.