What is the C4 model used for in this skill?

The C4 model is a hierarchical framework used to visualize software architecture at four levels of abstraction: System Context, Containers, Components, and Code.

How does the skill ensure diagram accuracy?

It includes built-in data validation checkpoints to verify that Mermaid syntax is valid and that the level of detail matches the intended audience before finalizing.

Can I use this for standard flowcharts or ERDs?

While this skill is specialized for C4 architecture, for general-purpose diagrams like flowcharts or sequence diagrams, you should use the mermaid-diagrams skill.

Where does Claude save the generated architecture files?

The skill is configured to write all documentation and diagrams to the docs/architecture/ directory in your project.

Does this skill support Mermaid diagram syntax?

Yes, the skill specifically generates architecture diagrams using valid Mermaid C4 syntax, including C4Context, C4Container, and C4Deployment.

C4 Model Architecture

Name: C4 Model Architecture
Author: hjemmesidekongen

byhjemmesidekongen

0•

Learning & Documentation

Generates hierarchical C4 model architecture documentation using Mermaid diagrams to visualize systems at multiple levels of abstraction.

The C4 Architecture skill empowers developers to document complex software systems using the industry-standard C4 model framework directly within Claude Code. It automates the creation of Mermaid diagrams across four distinct levels—System Context, Container, Component, and Deployment—ensuring that architecture views are perfectly tailored to their intended audience. By analyzing your codebase and project structure, the skill generates valid syntax and narrative documentation, providing a clear visual map of system interactions, infrastructure topology, and internal logic that stays in sync with your development.

Key Features

01Automatic Mermaid syntax validation for architectural diagrams

020 GitHub stars

03Automated codebase analysis to identify system boundaries and dependencies

04Multi-level C4 diagram generation (Context, Container, Component, Deployment)

05Stakeholder-specific documentation catering to both technical and non-technical audiences

06Standardized documentation output to structured markdown files

Use Cases

01Mapping physical deployment topology and infrastructure nodes for DevOps and operations teams

02Documenting the internal component structure of a specific application for team onboarding

03Visualizing how a new microservice interacts with existing enterprise systems and external APIs

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hjemmesidekongen/ai c4-architecture

For use in Claude.ai and ChatGPT

Key Features

01Automatic Mermaid syntax validation for architectural diagrams

020 GitHub stars

03Automated codebase analysis to identify system boundaries and dependencies

04Multi-level C4 diagram generation (Context, Container, Component, Deployment)

05Stakeholder-specific documentation catering to both technical and non-technical audiences

06Standardized documentation output to structured markdown files

Use Cases

01Mapping physical deployment topology and infrastructure nodes for DevOps and operations teams

02Documenting the internal component structure of a specific application for team onboarding

03Visualizing how a new microservice interacts with existing enterprise systems and external APIs