Generate Automated Code Documentation

Covers five documentation categories: API documentation (extracting endpoint definitions, parameters, and responses from code, generating OpenAPI or Swagger specs, building interactive docs with Swagger UI or Redoc, and documenting authentication, rate limiting, and error handling), architecture documentation (system architecture diagrams via Mermaid or PlantUML, component relationships, data flows, service dependencies, and scalability and reliability notes), code documentation (inline docstrings, README files with setup, usage, and contribution sections, configuration and environment-variable documentation, and troubleshooting guides), user documentation (step-by-step guides, getting-started tutorials, common workflows, accessibility and localization notes), and documentation automation with named quality standards. Ships nine worked reference examples: code analysis for documentation, OpenAPI specification generation, architecture diagrams, README generation (a full template with Features, Installation via pip or from source, Quick Start, Configuration, Development setup, Testing, Contributing, and License sections), a function documentation generator, a user-guide template, an interactive API playground, documentation CI/CD, and documentation coverage validation. States explicit limits on what its AST-based extractors can do: they cannot resolve arbitrary decorators, imported types, Pydantic factories, or framework runtime routing; the parameter sketch marks arguments required without resolving defaults; docstring coverage reports presence only, not accuracy, so zero applicable functions is not the same as 100% quality; and generated snippets with placeholders must stay labeled until replaced and tested, with a hard rule against importing untrusted project modules just to inspect them since imports can execute code.

Use it when generating API specs, architecture diagrams, code documentation, or user guides, or when automating documentation as part of CI/CD. Skip it for anything unrelated to documentation generation or outside this scope.

Input is a codebase or API surface to document; output is the matching artifact - an OpenAPI spec, an architecture diagram, a populated README, a docstring coverage report, or a user guide - each labeled with the extractor's known limits rather than presented as verified-accurate.

Mermaid or PlantUML for architecture diagrams, Swagger UI or Redoc for interactive API docs, OpenAPI and Swagger for API specification, and CI/CD pipelines for automated documentation coverage checks.

Engineers and technical writers generating or automating documentation who need concrete templates and honest limits on what AST-based extraction can and cannot verify, rather than documentation that silently overstates its own accuracy. Also covers building a documentation pipeline that extracts API endpoints straight from code via AST parsing, and standardizing doc formats across a repository.