Let me preface my comment by saying I also still write a lot of code by hand - especially when it's something I know I need to understand in depth, and in some cases defend.

With that said, this caught my eye:

> AI gravitates toward single-struct-holds-everything because it satisfies the immediate prompt with minimal ceremony.

This is too general. "AI" is used here as a catch-all, but in fact, it was the specific model under the specific conditions you ran your prompt, including harness, markdowns, PRDs, etc. So it's not fair to say "AI does X!" in this case.

It's also very much up to you. It's very common to have a frontier model plan an architecture before you have another model implement code. If you're just one-shotting an LLM to do everything you get mediocre, more brittle code.

This stuff is still being figured out by a lot of people. But I feel the core of the issue is not using AI well. Scoping, task alignment, validation, are crucial.