C4 Model Codebase Documentation Skill

Purpose

This skill helps an agent inspect a codebase and produce useful C4-style architecture documentation. It should combine evidence from the repository with targeted follow-up questions whenever code inspection alone is not enough to determine system boundaries, responsibilities, runtime topology, or business intent.

The skill should be pragmatic rather than dogmatic. The goal is not to force every repository into a perfect set of four diagrams, but to produce the clearest possible architecture view at the right level of detail.

When to use this skill

Use this skill when the user wants to: