My guess is it’s an email filter.
> million lines of code
> written 100% by agents
Yeah, probably an email filter. Or maybe a JS menu for a departmental wiki that basically recreates jquery using MS JScript and transpiles it into JS 5.
It may also be an email generator.
The email filter team is trying to match the pace of innovation of the email generation team. At stakes is the ability for the employees to process the billions of mission-critical generated emails each of them receives each day.
Probably because you smoked too much weed in school.
Remember, this is the tech industry! An abject lack of knowledge is no impediment for people with boundless confidence in their assumptions!