c4-modeling

Generate standardized C4 architecture diagrams using Mermaid syntax.

8|1|Updated Jul 11, 2025

Search Tags:#documentation #mermaid #diagramming #system-architecture #architecture-diagrams #c4-modeling

Ready to run

npx skills add https://github.com/Consiliency/treesitter-chunker --skill c4-modeling

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: c4-modeling
Source: https://github.com/Consiliency/treesitter-chunker/tree/main/.ai-dev-kit/skills/c4-modeling
Command: npx skills add https://github.com/Consiliency/treesitter-chunker --skill c4-modeling

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

The C4 modeling skill provides a consistent approach to documenting software architecture using four abstraction levels and Mermaid syntax, eliminating ambiguity in architecture diagrams.

Core Features & Use Cases

Generate Level 1-4 C4 diagrams with clear boundaries and labeled relationships.
Provide Mermaid-based diagrams with technology annotations and boundaries for stakeholder communication.
Use in architecture planning, design reviews, and system documentation to align teams.

Quick Start

Use the c4-modeling skill to create a Level 1 Context diagram for a given system, then zoom into a Container and Component view as needed.

Frequently Asked Questions about c4-modeling

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

FAQPage Schema

How do I create C4 diagrams for system architecture documentation?▼

C4 diagrams provide a standardized four-level approach to documenting software architecture: Context (system scope), Container (high-level technology), Component (internal structure), and Code (detailed implementation). Use Mermaid syntax to generate each level with clear boundaries and labeled relationships for stakeholder communication and design reviews.

What's the difference between C4 modeling levels and when do I use each one?▼

Level 1 Context shows the system and external dependencies; Level 2 Container breaks down technology boundaries; Level 3 Component zooms into internal structure; Level 4 Code depicts class or function details. Start with Context, then zoom into Container and Component views based on audience and documentation needs.

Can I use Mermaid syntax to generate C4 architecture diagrams?▼

Yes. C4 modeling with Mermaid syntax enables you to create standardized architecture diagrams with technology annotations, labeled relationships, and clear system boundaries, making diagrams version-controllable and easy to update alongside your codebase.

How do I document system architecture for stakeholder reviews and alignment?▼

C4 diagrams eliminate ambiguity in architecture documentation by providing consistent abstraction levels and labeled relationships. Use Context and Container diagrams for executive stakeholders, Component diagrams for technical teams, and include technology notes to align teams on design decisions.

What information should I include in architecture diagrams for consistency?▼

Consistent C4 diagrams require clear level boundaries between systems and containers, labeled relationships showing how components interact, technology annotations identifying frameworks and platforms, and reference guidance on Mermaid syntax to ensure all team members follow the same modeling approach.