The experience still matters.
I have had experiences out of my technical depth where I’ve instructed an agent to do something technically nonsensical. The agent tried to do it, creating a mess. Nothing works, I get frustrated, only to realize I have a fundamental misunderstanding of something technical.
A similar thing happens when you ask for something, but the complexity for the perfect solution is 10 x the complexity of a simpler, 90% solution. And sometimes you only realize that looking at code (or feeling lots of brittleness)
Fwiw, that's not what the parent was talking about.
You're trying to middle road it. He was talking about actually treating it as a black box, so just give the model your expectations and goals it needs to meet, not tell it a rough solution for it to apply in detail.
The expectation/goal approach in a ai edited project works better then the middle road since opus5.5 ime. Depending on your project structure, it may not be viable however without large refactorings