I 100% whole heartily agree with this. Anyone saying the models made a huge leap in fall 2025 / spring 2026 still aren't looking at whats going on. Just this weekend I thought I had a solid plan and evals/tests to let 5.6 sol work unsupervised over night while I slept and it made an absolute mess. Somewhere in the loop it had to make a decision and it made a wrong one. Making everything beyond that trash. The code 'worked' but it had the wrong system design and wrote the most brittle tests around its assumption, validating its own decision. It turned into a nasty feedback loop for the model. This is 5.6 sol high.

The models write good/great code. I'm very happy to never write code again but models are no where near good enough to run off on their own without a human in the loop. Models LOVE to cheat. Just peek at the tests they write.

And before you come at me, I have built 7 products in the past 1.5/2 years with agentic engineering, all with users. One of those projects is _dead_ because I let the vibe go too hard at the same time Anthropic decided to nerf both their harness and their models silently. If you care to look at the source: https://github.com/Robdel12/OrbitDock I spent a week or so and like a billion+ tokens trying to refactor and save it. It just wasn't worth it.

I wish people would be pragmatic about this. I get the dream is to let it do everything and not to be in the loop, because being in the loop is exhausting. But if you want to make whatever you're building be robust and survive more than 6 months, you have to. I don't care how good your tests, plans, skills, etc are. At some point the model will have to decide something and it'll be the wrong one. Compounding the slop from there forward.