Agree to Disagree in Agent Land

I recently wrote some code for our internal agent harness and system architecture that I was particularly happy with. With the new Opus 4.6 release last week, I wanted to see if it could one-shot the same task. So decided to run this small experiment on the weekend afternoon. Asked Opus 4.6 and Codex 5.2 (no access to 5.3 at the time) the same assignment with the necessary modules and a prompt…