I stated plainly: "we have no data about this". Vibes is all we have.
It's not just me though. Loads of people subjectively perceiving a decrease in quality of engineering when relying on agents. You'll find thousands of examples on this site alone.
Re:Why I don't think AGI is imminent
by reactordev on Tuesday February 17, 2026 @10:51AM
(#47048829)
I have yet to find an agent that writes as succinctly as I do. That said, I have found agents more than capable of doing something.
In mine it is the case. Anecdata.
But for me, this was over two decades in an underpaid job at an S&P500 writing government software, so maybe you had better peers.