diagramming

Convert textual system descriptions into Mermaid diagrams.

53|1|Updated Dec 18, 2025

Search Tags:#architecture #mermaid #flowchart #ERD #sequence #diagram

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npx skills add https://github.com/cosmix/claude-code-setup --skill diagramming-cosmix

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: diagramming
Source: https://github.com/cosmix/claude-code-setup/tree/main/skills/diagramming
Command: npx skills add https://github.com/cosmix/claude-code-setup --skill diagramming-cosmix

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Mermaid diagrams provide a quick, readable way to visualize architecture, sequences, ERDs, and flows without heavy tools.

Core Features & Use Cases

Mermaid diagrams: Architecture, sequence, ERD, flowchart, and state diagrams.
Readable diagrams: Clear labels and consistent naming.
Use Case: Document a system context with a mermaid C4 context diagram.

Quick Start

Write a Mermaid diagram snippet and render it with your preferred tool or viewer.

Frequently Asked Questions about diagramming

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

FAQPage Schema

How do I convert system descriptions into Mermaid diagrams?▼

Mermaid diagrams convert textual system descriptions into visual architecture, sequence, ERD, flowchart, and state diagrams. Write your system details as text, then use Mermaid syntax to generate readable diagrams with labeled relationships and consistent naming for documentation and design reviews.

What types of diagrams can Mermaid create?▼

Mermaid supports architecture diagrams, sequence diagrams, entity-relationship diagrams (ERDs), flowcharts, and state diagrams. Each diagram type documents different aspects: architecture shows system structure, sequences show interactions over time, ERDs show data relationships, flowcharts show processes, and state diagrams show system state transitions.

When should I use Mermaid for documentation instead of other diagramming tools?▼

Use Mermaid when you need quick, text-based diagramming without heavy tools. Mermaid excels at version-controlled, readable diagrams for design reviews, onboarding, and system maintenance. It's ideal when diagram-as-code fits your workflow and you prioritize simplicity over visual polish.

How do I ensure Mermaid diagrams are readable and maintainable?▼

Mermaid diagrams achieve readability through consistent naming conventions, clear labeled relationships, and modularization for scalability. Apply consistent naming across components, label every connection explicitly, and break complex diagrams into smaller, focused modules to maintain clarity as systems grow.

Can I use Mermaid to document data flows and system architecture together?▼

Yes. Mermaid supports both architecture diagrams for system structure and sequence or flowchart diagrams for data flows. Use C4 context diagrams for architecture overview, sequence diagrams to show data movement between components, and flowcharts to document process steps and decision logic.