Having the humans document the code seems backward (maybe that's not what they're doing, but "make everything ready for ai" sound manual). And hopefully there aren't that many scary surprises that humans need to manually document.

One of the best parts of LLMs is that you can use them to bootstrap your documentation, or scan for outdated things, etc, far more quickly than ever before.

Don't just throw a mountain at it and ask it to get it right, but use a targeted process to identify inconsistencies, duplicates, etc, and then resolve those.

And then you have better onboarding material for the next human OR llm...