Every engineering team has a wiki. Nobody writes in it, and the one page that does exist was last touched by someone who left in 2022. So the real reasons behind your codebase live in old Slack threads, closed issues and the heads of whoever's been around longest. Prodigent pulls that knowledge out of the places your team already works, like PRs, issues and commits, so it still knows why things are built the way they are, even though nobody wrote any docs.
Where that pays off is code review. Prodigent walks the reviewer through a PR and shows whether the change fits how the team actually builds: the decisions you've already made, the conventions you follow, and the incidents you'd rather not repeat. A human still makes the call, because a bot that approves its own homework isn't a review. When it finds a gap in what it knows, it asks the right dev a quick question at the right moment, so the knowledge base fills itself in without anyone being told to "please update the docs."