c4-architecture-c4-architecture

To generate C4 architecture documentation, this skill analyzes all repository subdirectories using a bottom-up approach to produce code, component, container, and context diagrams, saving outputs under a dedicated documentation directory.

A bottom-up approach to system design documentation starts by analyzing individual code-level subdirectories to discover components, then synthesizes findings upward into container and context diagrams following the official C4 model.

Yes, you can automatically create OpenAPI specs from your repository's architecture. The skill identifies container APIs during analysis and includes the corresponding OpenAPI specifications within the generated C4 documentation outputs.

Yes, this C4 model documentation tool works with repositories that have no dependencies. It requires no external components or prerequisites, directly analyzing your existing codebase structure to automate the architecture documentation process.

The best way to document system architecture across multiple subdirectories is using automated bottom-up code analysis. This ensures complete coverage of your codebase and synthesizes findings into structured C4 context, container, and component diagrams.

You need architecture documentation automation when you want to systematically map an existing codebase into C4 diagrams. It eliminates manual diagramming by discovering code-level structures and organizing them into a comprehensive documentation directory.