I don't understand what kind of evidence you expect to receive.
There are plenty of examples from talented individuals, like Antirez or Simonw, and an ocean of examples from random individuals online.
I can say to you that some tasks that would take me a day to complete are done in 2h of agentic coding and 1h of code review, with the additional feature that during the 2h of agenti coding I can do something else. Is this the kind of evidence you are looking for?
There are plenty of examples from talented individuals, like Antirez or Simonw, and an ocean of examples from random individuals online.
I can say to you that some tasks that would take me a day to complete are done in 2h of agentic coding and 1h of code review, with the additional feature that during the 2h of agenti coding I can do something else. Is this the kind of evidence you are looking for?