"Using coding agents well is taking every inch of my 25 years of experience as a software engineer, and it is mentally exhausting.
— Lenny Rachitsky (@lennysan) 2 avril 2026
I can fire up four agents in parallel and have them work on four different problems, and by 11am I am wiped out for the day.
There is a limit on… https://t.co/LWQPeaxml9 pic.twitter.com/lPcKm9Lqoy
"Using coding agents well is taking every inch of my 25 years of experience as a software engineer, and it is mentally exhausting. I can fire up four agents in parallel and have them work on four different problems, and by 11am I am wiped out for the day. There is a limit on