mermaid-diagrams

Generate class, sequence, flowchart, ERD, and C4 diagrams from Mermaid syntax.

1|Updated Feb 27, 2026
One-click install
npx skills add https://github.com/gatieme/agent-toolkit --skill mermaid-diagrams-gatieme
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mermaid-diagrams
Source: https://github.com/gatieme/agent-toolkit/tree/main/skills/mermaid-diagrams
Command: npx skills add https://github.com/gatieme/agent-toolkit --skill mermaid-diagrams-gatieme

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill transforms complex technical concepts into clear, maintainable diagrams using Mermaid's text-based syntax, making visualization and documentation effortless.

Core Features & Use Cases

  • Diagram Generation: Create various diagram types (Class, Sequence, Flowchart, ERD, C4, etc.) from simple text descriptions.
  • Documentation Enhancement: Visualize architecture, data models, code structure, and processes directly within your documentation.
  • Use Case: You need to document the interaction flow between your frontend, backend API, and database for a new feature. Use this Skill to generate a sequence diagram illustrating the API calls and responses.

Quick Start

Use the mermaid-diagrams skill to create a flowchart showing the user registration process.

Frequently Asked Questions about mermaid-diagrams

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

FAQPage Schema
How do I generate sequence diagrams for API documentation?

Sequence diagrams for API documentation are generated using Mermaid syntax to illustrate application flows and API interactions. You provide a text description of the frontend, backend, and database interactions, and the Skill outputs the corresponding visual sequence diagram.

Can I create C4 architecture diagrams and ERDs using text descriptions?

Yes, C4 architecture diagrams and ERDs for database schemas can be created directly from text descriptions. The Skill translates your text-based input into standard Mermaid syntax to visualize system architecture and database design.

What is the best way to visualize code structure in documentation?

The best way to visualize code structure in documentation is by generating class diagrams for domain modeling using Mermaid syntax. This approach transforms complex technical concepts into clear, maintainable text-based diagrams directly within your docs.

How do I draw flowcharts for processes like user registration?

Flowcharts for processes like user registration are drawn by providing a simple text description of the workflow. The Skill then generates the corresponding Mermaid flowchart, making visualization and documentation effortless.

Do I need any specific diagramming software to render these visualizations?

No specific external diagramming software is required as there are no dependencies. The Skill generates diagrams using Mermaid's text-based syntax, which can be rendered directly within compatible markdown documentation environments.