mermaid-diagrams

Generate flowcharts, sequence diagrams, ERDs, class diagrams, and Gantt charts using Mermaid syntax.

14|5|Updated Jan 29, 2026

Search Tags:#architecture #documentation #mermaid #flowchart #visualization #diagrams

Ready to run

npx skills add https://github.com/oakoss/agent-skills --skill mermaid-diagrams-oakoss

💬 Prompt for ChatGPT / Claude Chat▼

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

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you create and understand complex diagrams directly within your documentation, making it easier to visualize code, architecture, and workflows.

Core Features & Use Cases

Diagram Generation: Create flowcharts, sequence diagrams, ERDs, class diagrams, Gantt charts, and more using simple text-based syntax.
Documentation Enhancement: Embed rich visual aids directly into Markdown files for better comprehension.
Use Case: You need to document the user authentication flow for a new feature. Use this Skill to generate a sequence diagram illustrating the request/response cycle between the frontend, backend, and database.

Quick Start

Use the mermaid-diagrams skill to generate a flowchart for a simple user login 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 flowcharts and sequence diagrams directly in Markdown documentation?▼

To generate flowcharts and sequence diagrams in Markdown, you write declarative Mermaid syntax for nodes, edges, and subgraphs. This produces text-based visualizations of system architecture and process flows directly within your documentation files.

What types of diagrams can I create using Mermaid syntax?▼

Using Mermaid syntax, you can create flowcharts, sequence diagrams, ERDs, class diagrams, and Gantt charts. These text-based diagrams help visualize data models, system architecture, and process workflows directly in Markdown environments.

Do I need prior knowledge of Mermaid syntax to visualize architecture and data models?▼

Yes, understanding Mermaid's declarative syntax for nodes, edges, subgraphs, and specific diagram types is required. This knowledge allows you to effectively generate text-based visualizations for system architecture and data models.

What is the best way to document a user authentication flow using text-based diagrams?▼

The best way to document an authentication flow is by generating a Mermaid sequence diagram illustrating the request and response cycle. This text-based approach visualizes interactions between the frontend, backend, and database directly in Markdown.

Can I use Mermaid diagrams to visualize complex code structures and workflows?▼

Yes, you can use Mermaid to visualize complex code structures and workflows. By generating class diagrams for data models and flowcharts for process flows, you embed rich text-based visual aids directly into your Markdown documentation for better comprehension.