mermaid-diagrams

Generate Mermaid diagrams for class, sequence, flowchart, ERD, and C4 architecture.

Updated Mar 16, 2026
One-click install
npx skills add https://github.com/Likas07/t3code-skills --skill mermaid-diagrams-likas07
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mermaid-diagrams
Source: https://github.com/Likas07/t3code-skills/tree/main/skills/mermaid-diagrams
Command: npx skills add https://github.com/Likas07/t3code-skills --skill mermaid-diagrams-likas07

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill helps you create, visualize, and document software architecture and processes using text-based diagrams, making complex systems easier to understand and maintain.

Core Features & Use Cases

  • Diagram Generation: Create various diagrams like class, sequence, flowchart, ERD, and C4 architecture diagrams from simple text descriptions.
  • Architecture Visualization: Document system context, containers, components, and deployment infrastructure using the C4 model.
  • Use Case: You need to explain the flow of a user login process to a new team member. Use this Skill to generate a sequence diagram that visually maps out each step and interaction between the frontend, API, and database.

Quick Start

Generate a Mermaid class diagram for a simple e-commerce domain model.

Frequently Asked Questions about mermaid-diagrams

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

FAQPage Schema
How do I generate a sequence diagram for visualizing user login flows and API interactions?

You can generate sequence diagrams using Mermaid syntax to visually map out user login flows, mapping each step and interaction between the frontend, API, and database. This helps explain processes to new team members.

How do I document software architecture using the C4 model?

You can document software architecture using the C4 model by generating Mermaid diagrams for Context, Container, Component, and Deployment levels. This visualizes system boundaries, infrastructure, and component interactions in text format.

Can I create flowcharts and ERDs to visualize algorithms and database schemas?

Yes, you can create flowcharts to visualize processes and algorithms, as well as Entity Relationship Diagrams (ERDs) to map database schemas. Both are generated using text-based Mermaid syntax.

What is the best way to create text-based class diagrams for a domain model?

The best way to create text-based class diagrams is by using Mermaid syntax to define domain models, such as an e-commerce domain. This approach makes complex systems easier to understand, maintain, and document directly from text descriptions.

Do I need any external dependencies to model system architecture and data flows with Mermaid?

No external dependencies are required to model system architecture and data flows. The Skill operates standalone to generate various diagram types, including flowcharts and C4 architecture diagrams, directly from your text descriptions.

When should I use Mermaid diagrams instead of manual diagramming tools?

You should use Mermaid diagrams when you need to make complex software architecture and processes easier to understand and maintain through text-based visualization, rather than manually dragging elements in visual editors.