With Codex it only happened to me once in my 4.5hr session here: https://simonwillison.net/2025/Dec/15/porting-justhtml/
Claude Code is a whole lot less generous though.
For sure. On one project I kept using codex just to see where the wall was. Took a long time.
This is useful info.
I havent tried agentic coding as I havent set it up in a container yet, and not going to yolo my system (doing stuff via chat and a utility to copy and paste directories and files got me pretty far over the last year and a half).