Can I use this for existing codebases?

Yes, the skill can analyze existing folder structures and code to generate container and component-level diagrams that reflect the actual implementation.

Which diagram formats does this skill support?

This skill is designed to support Mermaid, PlantUML C4 extensions, and Structurizr DSL for flexible integration into various documentation tools.

What is the C4 model for architecture?

The C4 model is a lean graphical notation technique for modelling the architecture of software systems across four levels: Context, Containers, Components, and Code.

How does this skill help with system design?

It automates the creation of visual maps, helping architects and developers identify bottlenecks, clarify boundaries, and communicate system structure effectively.

C4 Model Architecture Diagrams

Name: C4 Model Architecture Diagrams
Author: Agentient

byAgentient

0•

Learning & Documentation

Generates structured C4 model diagrams to visualize software architecture across context, container, component, and code layers.

C4 Model Architecture Diagrams is a specialized skill designed to help engineers and architects map out complex software systems using the hierarchical C4 modeling approach. It enables the creation of visual representations ranging from high-level system landscapes and external dependencies down to the granular details of components and classes. By supporting industry-standard formats like Mermaid and PlantUML, this skill simplifies the process of creating maintainable, architecture-as-code documentation that stays in sync with actual implementation, making it an essential tool for system design, stakeholder communication, and technical onboarding.

Key Features

01Support for Mermaid, PlantUML C4, and Structurizr DSL

02Automated documentation of internal component structures

03Mapping of microservices, data stores, and container interactions

04Visualization of system boundaries and external actor relationships

050 GitHub stars

06Hierarchical mapping from System Context (C1) to Code (C4)

Use Cases

01Visualizing complex microservice relationships and data flows in a distributed system

02Mapping legacy system structures during modernization or cloud migration planning

03Creating architecture-as-code documentation for project READMEs and wikis

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add agentient/vibekit c4-model-architecture-diagrams

For use in Claude.ai and ChatGPT

Download Skill