Show HN: Instantly extract tribal knowledge embedded in any codebase

Hi HN!

GitSummarize is an open-source devtool that I made this weekend.

Given any public GitHub repository it generates high-quality documentation from the codebase using Gemini 2.5 Pro. Specifically, it tries to extract the tribal knowledge, business logic/rules embedded within codebases.

Pro Tip: You can replace "hub" with "summarize" in any repository URL to access its documentation.

I created this because there was a steep learning curve to understanding some of the open-source codebases out there while getting started with contributing. Having detailed documentation would be immensely helpful in those situations.

This project was heavily inspired by GitIngest and GitDiagram so make sure to check those out as well!

Hopefully this tool can help you when working with repos without any documentation. Give it a try and I would appreciate any feedback!