I find these agents incredibly useful for eliminating time spent on writing utility scripts for data analysis or data transformation. But... I like coding, getting relegated to being a manager 100%? Sounds like a prison to me not freedom.
That they are so good at the things I like to do the least and still terrible at the things at which I excel. That's just gravy.
But I guess this is in line with how most engineers transition to management sometime in their 30s.