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SpringBootAI

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How I automated Spring Boot documentation with reverse engineering

The problem

If you've worked with Spring Boot for a while, you've probably experienced this:

You join a project and there is:

  • no architecture documentation
  • no clear understanding of security
  • no overview of how components interact
  • incomplete or missing API docs

You spend days reading code just to understand what’s going on.

I ran into this constantly.


Why existing tools didn’t solve it

Swagger / OpenAPI helps — but only if:

  • the code is already annotated
  • or someone manually defines the spec

In many real-world projects, that’s not the case.

I also tried using AI tools, but:

  • they don’t run locally
  • they don’t understand full project context
  • and they don’t generate structured documentation

What I built

I built a CLI tool that analyzes an existing Spring Boot repository and generates a complete technical documentation package automatically.

It runs locally inside your project.

Your code never leaves your machine.


What it generates

From an existing repo, it produces:

  • Architecture documentation (layers, components, relationships)
  • Security matrix (endpoints, HTTP methods, roles)
  • UML diagrams (use cases, logical architecture, layered view)
  • OpenAPI/Swagger annotations injected into the code
  • Javadoc at method level
  • Onboarding guide for new developers
  • Traceability from requirements to implementation
  • Payload documentation

How it works

You run it directly in your project:

springbootai analyze
https://www.youtube.com/watch?v=bI6FCiniWqU
👉 https://springbootai.com

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