So you either need lots of extra text to remove the ambiguity of natural language if you use AI or you need a special precise subset to communicate with AI and that’s just programming with extra steps.
Real projects don't require an infinitely detailed specification either, you usually stop where it no longer meaningfully moves you towards the goal.
The whole premise of AI developer automation, IMO, is that if a human can develop a thing, then AI should be able too, given the same input.
If you use cline with any large context model the results can be pretty amazing. It's not close to self guiding, You still need to break down and analyze the problem and provide clear and relevant instructions. IE you need to be a great architect. Once you are stable on the direction, its awe inspiring to watch it do the bulk if the implementation.
I do agree that there is space to improve over embedded chat windows in IDEs. Solutions will come in time.