I think this highlights some problems with software development in general. i.e. the code isn't enough - you need to have domain knowledge too and a lot of knowledge about how and why the company needs things done in some way or another. You might imagine that dumping the contents of your wiki and all your chat channels into some sort of context might do it but that would miss the 100s of verbal conversations between people in the company. It would also fall foul of the way everything tends to work in any way you can imagine except what the wiki says.

Even if you transcribed all the voice chats and meetings and added it in, it challenges a human to work out what is going on. No-context human developers are pretty useless too.