Having worked at a company with thousands of microservices, I feel like most of it is just a bunch of boilerplate riddled with tons of ridiculous business logic, security and otherwise bugs. It seems like people were historically more concerned about Java inheritance and spreading everything around different files and directory hierarchies, while ignoring common sense business requirements completely. With each service being on separate older version, many being very difficult to start up locally, I don't see how LLMs could do worse than that, and that is a profitable, working business.

Funnily enough AI is the one discovering all those glaring issues now, and everyone is overwhelmed with getting it fixed. You could allow AI to attempt fixing it, but even though all of it was human written it is still hard to review, and even locally spin up or test because no one any more knows the true business requirements as people have rotated etc, so it's a nightmare.

The code on the first sight looks good, but what could be a simple config map, is spread out abstraction that is impossible to understand. Think just massive amounts of boilerplate to make a proxy call to another microservice etc.