I like your content very much, let me point this out first.
I'm not sure all aspects are covered in the approach.
For instance, controlling the agents takes a big chunk of the interest. The agentic system architecture is also big in view.
But, the way I see, more important staff is: project structure, coding best practices, testing strategies. All still deterministic. All still very tough to get agentic to do it right.
I think agentic should just be means to an end: project quality and project ease of management. If not, it's just an indulgence that costs money.