Comment by zmmmmm

It's an interesting question how AI influences this. If it scales up the scope of what an individual engineer can do, and if the primary driver of microservice scope is Conway's law, then in theory microservices should get "fatter".

However I go the other way than you: I have found AI needs as much context as possible and that means it understands monoliths (or fatter architectures) better. At least, the agentic style approach where it has access to the whole git tree / source repository. I find things break down a lot when changes are needed across source repositories.