Granted, this example (and others) have plenty of inline documentation. And, public documentation is likely in the training data for LLMs.

But, this is more than just a prompt. The tool generates really nicely structured and readable tutorials that let you understand codebases at a conceptual level easier than reading docstrings and code.

Even if it's only useful for public repos with documentation, that's still useful, and flippant dismissals are counterproductive.

I am keen to try this with one of my own (private, badly documented) codebases and see how it fares. I've actually found LLMs quite useful at explaining code, so I have high hopes.