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c4-architecture-c4-architecture

Generate C4 architecture documentation from codebase analysis with Mermaid diagrams.

10|5|Updated Jan 29, 2026
Search Tags:#code analysis#system design#mermaid#c4 model#architecture documentation#diagram generation
One-click install
npx skills add https://github.com/Claude-Code-Community-Ireland/claude-code-resources --skill c4-architecture-c4-architecture
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: c4-architecture-c4-architecture
Source: https://github.com/Claude-Code-Community-Ireland/claude-code-resources/tree/main/skills/general/c4-architecture-c4-architecture
Command: npx skills add https://github.com/Claude-Code-Community-Ireland/claude-code-resources --skill c4-architecture-c4-architecture

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill automates the creation of comprehensive C4 architecture documentation for a codebase, transforming raw code into understandable architectural diagrams and descriptions.

Core Features & Use Cases

  • Bottom-Up Analysis: Analyzes code from the deepest directories upwards to ensure complete coverage.
  • Multi-Level Documentation: Generates documentation for Code, Component, Container, and Context levels.
  • Automated Diagrams: Creates Mermaid diagrams for visualizing architecture at different levels.
  • Use Case: When onboarding a new developer to a complex project, use this Skill to quickly generate a clear architectural overview that explains the system's structure, components, and external interactions.

Quick Start

Use the c4-architecture skill to generate C4 documentation for the current repository.

Frequently Asked Questions about c4-architecture-c4-architecture

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

FAQPage Schema
How do I generate C4 architecture documentation from an existing codebase?▼

Generate C4 architecture documentation by performing a bottom-up analysis of your codebase, synthesizing code-level details from the deepest directories upwards into structured context, container, and component diagrams with descriptions.

Can I automate Mermaid diagram generation for system design documentation?▼

Automate Mermaid diagram generation for system design by analyzing code structure to produce visual C4 architecture diagrams, mapping out components, containers, and external system interactions automatically.

What is the best way to visualize software architecture for developer onboarding?▼

Visualize software architecture for onboarding by generating C4 model diagrams that explain system structure, component relationships, and external interactions through multi-level documentation and automated Mermaid visuals.

Does C4 architecture documentation require analyzing the entire codebase structure?▼

C4 architecture documentation requires complete codebase analysis, processing code from the deepest directories upwards to ensure full coverage of code, component, container, and context levels.

How does bottom-up code analysis work for architecture diagram generation?▼

Bottom-up code analysis for architecture diagrams works by examining code-level details first, then synthesizing them upward into component, container, and context levels to produce comprehensive architectural documentation.

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