Yeah. Its kind of strange - claude is great at some tasks, but it seems really rubbish at coming up with good abstractions a lot of the time. I've often caught it making a conceptual mistake (like "X cannot do Y") - then spending hundreds of lines working around an issue that doesn't actually exist.

Its also really bad at inventing and leaning on invariants. I make rules in my code all the time - "by the time we get to path X, we know Y and Z are true.". In aggregate, these invariants make code simpler and easier to reason about. But claude doesn't do that. It just kind of - slops through and adds bespoke "just in case" workarounds all over the place. Every time I read through code its written - without fail - I find bad design / architectural choices.

Maybe mythos will change this. But for now I've slowed way down on my claude code usage. You can't build a skyscraper on a foundation of mud.