mermaid-diagrams

Convert plain-text descriptions into Mermaid diagrams for software architectures.

Updated Feb 17, 2026
One-click install
npx skills add https://github.com/sergical/repo-architect --skill mermaid-diagrams-sergical
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mermaid-diagrams
Source: https://github.com/sergical/repo-architect/tree/main/.agents/skills/mermaid-diagrams
Command: npx skills add https://github.com/sergical/repo-architect --skill mermaid-diagrams-sergical

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Convert plain-text descriptions into Mermaid diagrams to visualize software architectures, data flows, and system interactions, enabling living, version-controlled documentation that stays in sync with code.

Core Features & Use Cases

  • Supports multiple Mermaid diagram types (class, sequence, flowchart, ERD, C4, state, Git graphs, Gantt, pie charts) for comprehensive documentation
  • Provides frontmatter-driven configuration guidance (themes, layouts, exports) to standardize diagram visuals
  • Serves as a practical reference and quick-start guide for engineers, architects, and analysts documenting systems and workflows

Quick Start

Start by selecting a diagram type and write a Mermaid diagram in plain text using the examples and guidelines in this guide.

Frequently Asked Questions about mermaid-diagrams

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

FAQPage Schema
How do I create Mermaid diagrams from plain text?

You create Mermaid diagrams by writing plain-text descriptions using Mermaid syntax. This approach converts text into visual diagrams for software architectures and workflows, enabling version-controlled documentation that stays in sync with code.

What types of Mermaid diagrams can I use for software architecture?

Mermaid diagrams for software architecture support class, sequence, flowchart, ERD, C4, state, Git graphs, Gantt, and pie charts. These diagram types cover comprehensive documentation needs for visualizing complex flows and system interactions.

How do I standardize diagram visuals using frontmatter configuration?

You standardize diagram visuals by applying frontmatter-driven configuration. This mechanism provides guidance on selecting diagram themes, layouts, and exports, ensuring teams maintain consistent visual standards across all generated Mermaid diagrams.

Can I generate ERD and class diagrams for living documentation?

Yes, you can generate ERD and class diagrams for living documentation. This approach helps software teams document data models and code architectures in a consistent, text-based format that stays synchronized with the codebase.

What is the best way to visualize software architectures as text-based diagrams?

The best way to visualize software architectures as text-based diagrams is using Mermaid syntax. It enables teams to quickly map complex system interactions and data flows in a consistent format that integrates directly into version-controlled documentation.

Are there limitations when using Mermaid for sequence and flowchart diagrams?

Mermaid enforces specific syntax guidelines for sequence and flowchart diagrams to ensure valid rendering. Users must adhere to these syntax rules when mapping system interactions and workflows to prevent formatting errors during export.