c4-modeling

Model software systems with Mermaid-based C4 diagrams.

9|3|Updated Oct 26, 2019
One-click install
npx skills add https://github.com/Hack23/homepage --skill c4-modeling-hack23
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: c4-modeling
Source: https://github.com/Hack23/homepage/tree/main/.github/skills/architecture/c4-modeling
Command: npx skills add https://github.com/Hack23/homepage --skill c4-modeling-hack23

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Architecture documentation is often inconsistent and hard to maintain. This skill provides a streamlined way to create C4 model diagrams (Context, Container, Component, Code) in Mermaid syntax, improving clarity and traceability.

Core Features & Use Cases

  • Mermaid-based C4 diagrams across multiple levels (System Context, Container, Component, Code) for architecture documentation.
  • Enforces consistent notation and templates to support onboarding, reviews, and governance.
  • Useful for design reviews, system migrations, and documentation repositories to visualize architecture decisions.

Quick Start

Write a Mermaid C4 snippet for your system (System Context, Container, or Component) and embed it in ARCHITECTURE.md using the C4 directives to generate diagrams.

Frequently Asked Questions about c4-modeling

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

FAQPage Schema
How do I generate C4 diagrams using Mermaid for architecture documentation?

You generate C4 diagrams by writing Mermaid snippets for System Context, Container, Component, or Code levels and embedding them in your documentation using C4 directives. This approach enforces consistent notation and templates for visualizing software architecture.

What is the best way to maintain consistent C4 model diagrams across complex projects?

Using Mermaid-based C4 diagrams enforces consistent notation and structured templates across projects of varying complexity. This streamlined approach improves clarity and traceability for system migrations, design reviews, and documentation repositories.

Can I document both current and future state architecture using C4 diagrams in Mermaid?

Yes, you can document both current and future state architecture using Mermaid C4 diagrams. The skill supports structured templates applicable across System Context, Container, Component, and Code levels to visualize architecture decisions over time.

Does the C4 modeling approach work for small services as well as large platforms?

Yes, C4 diagrams in Mermaid are applicable to projects of varying complexity, from small services to large platforms. They provide a scalable way to model software systems for onboarding, reviews, and governance.

Why use Mermaid syntax for C4 diagrams instead of other architecture diagram tools?

Mermaid syntax for C4 diagrams provides a streamlined, text-based way to create architecture documentation that is easy to maintain and version control. It enforces consistent notation across System Context, Container, Component, and Code levels.

When do I need to use the different C4 diagram levels for software modeling?

You use System Context for high-level interactions, Container for deployment units, Component for internal modules, and Code for detailed implementation. These C4 levels structure your Mermaid diagrams to support onboarding and design reviews.