The shift from prompt engineering to loop engineering. How Karpathy, Steipete, and Boris Cherny design systems that prompt their agents.

Originally published at dragosroua.com. There's a line from Boris Cherny, the head of Claude Code,...

a quiet day lets us highlight a great concept from Peter Steinberger, Boris Cherny, and Andrej Karpathy

Published June 15, 2026 by gyorgy The current discourse says you should stop prompting coding agents...

The shift from prompt engineering to loop engineering. How Karpathy, Steipete, and Boris Cherny design systems that prompt their agents.