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c4-code

Document code-level structure and dependencies for a source directory.

Updated May 5, 2026
Search Tags:#mermaid diagrams#code documentation#dependency mapping#module analysis#class analysis#c4
One-click install
npx skills add https://github.com/Movchanets/Microservices_Learning --skill c4-code-movchanets
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: c4-code
Source: https://github.com/Movchanets/Microservices_Learning/tree/main/.agents/skills/c4-code
Command: npx skills add https://github.com/Movchanets/Microservices_Learning --skill c4-code-movchanets

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill turns a source directory into clear C4 code-level documentation, helping teams understand functions, classes, modules, and dependencies without reading every file manually.

Core Features & Use Cases

  • Code Element Inventory: Captures function signatures, class responsibilities, module boundaries, and where each item lives in the codebase.
  • Dependency Mapping: Identifies internal relationships and external libraries so architecture and coupling are easy to review.
  • Diagram Support: Produces Mermaid diagrams for object-oriented, functional, procedural, or mixed code structures when the design is complex.
  • Use Case: A developer asks for documentation of a service folder and gets a structured C4-style breakdown with dependencies and a diagram-ready overview.

Quick Start

Use this skill to analyze the target code directory and produce C4 code-level documentation with functions, classes, dependencies, and diagrams as needed.

Frequently Asked Questions about c4-code

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

FAQPage Schema
How do I generate code documentation with function inventories and dependency mapping for a source directory?▼

C4 code documentation structures a source directory by capturing function signatures, class responsibilities, module boundaries, and internal and external dependency lists so teams can review architecture and coupling without reading every file manually.

Can I generate Mermaid diagrams for complex module analysis and class structures in my codebase?▼

Yes, you can generate Mermaid diagrams for complex module analysis and class structures. The documentation process produces diagram-ready overviews for object-oriented, functional, procedural, or mixed codebases when the design is too complex for text alone.

Does C4 code documentation work with functional and procedural codebases or only object-oriented ones?▼

C4 code documentation works with object-oriented, functional, procedural, and mixed codebases. It captures complete signatures and file locations for all code elements regardless of the underlying programming paradigm.

What is the best way to map internal dependencies and external libraries across a service folder?▼

The best way to map internal dependencies and external libraries across a service folder is to perform a structured C4-style breakdown that identifies relationships between modules and external packages for easy architecture review.

When should I avoid using automated code structure documentation for my project?▼

You should avoid automated code structure documentation when a source directory lacks clear module boundaries or when the codebase is too small to require formal dependency mapping and class analysis, making manual review more efficient.

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