Codex

On Windows you must spell out the OS and PowerShell version in AGENTS.md, otherwise it mixes syntax from different versions in its commands and you get a pile of errors. I also added a rule: use Python whenever possible, which is much more stable across environments.

When the desktop app runs tasks, the whole computer crawls: the browser barely opens and typing in a document lags. Switching back to the CLI fixed it at once, so the problem must be the app itself.

I don't just hand it the keys. First I set up guardrails (tests, permissions and rollback) to keep the blast radius of mistakes small enough, and only then let it build, debug and deploy on its own in the dev environment. With those in place, that part really can be handed off.

I used to run five CLI sessions at once without hitting limits. After the update, ten or twenty prompts and it's empty. High-reasoning mode, long sessions, Skills and MCP all eat quota, so now I have to watch for when to switch to a cheaper model.

After a few months it's almost unrecognizable. Since the CLI's engineering ability improved, I've been alternating between it and Claude Code, splitting projects between them, and I can no longer tell which is clearly stronger. The early version was rough; reviews from a year ago can basically be ignored.