I hear everyone say "the LLM lets me focus on the broader context and architecture", but in my experience the architecture is made of the small decisions in the individual components. If I'm writing a complex system part of getting the primitives and interfaces right is experiencing the friction of using them. If code is "free" I can write a bad system because I don't experience using it, the LLM abstracts away the rough edges.

I'm working with a team that was an early adopter of LLMs and their architecture is full of unknown-unknowns that they would have thought through if they actually wrote the code themselves. There are impedance mismatches everywhere but they can just produce more code to wrap the old code. It makes the system brittle and hard-to-maintain.

It's not a new problem, I've worked at places where people made these mistakes before. But as time goes on it seems like _most_ systems will accumulate multiple layers of slop because it's increasingly cheap to just add more mud to the ball of mud.