Overview
Delegating more coding creates more review work. There is no demonstrated mechanism that removes this cost. Teams should expect code review to become a larger share of engineering time.
Small pull requests and high-throughput autonomous loops can conflict. A long loop produces more code than a human can comfortably review at once. The practical controls are task size, loop length, branch separation, and disciplined issue boundaries, but these do not eliminate the tension.
Manual QA is slow and cannot cover every state. Its role is different from automated testing: it applies human judgment to integrated behavior and catches failures that the available feedback loops did not represent.