Ask HN: How do you guys stay on top of the code that is generated?

I have been working on a new service from scratch and AI has spat out 1000s of LOC and while I leveraged on it quite a bit for the design of the service, I need to know exactly what is happening in every single line of code. This has increasingly become a problem for me, especially when working on something new from scratch, is there any plugin, skill, prompt that makes it easier to understand a codebase in-depth?