I've been experimenting with Codex CLI lately, and it feels like we're moving from "AI autocomplete" to "AI teammate."
OpenAI Developer Community
June 12, 2026
The interesting part isn’t that Codex can write code.
It’s that it can:
* Understand an existing codebase
* Make multi-file changes
* Run commands
* Work directly from the terminal
That said, I’m curious how people are using it in real projects.
Are you treating Codex CLI as:
1. A coding assistant?
2. A code reviewer?
3. A debugging partner?
4. An autonomous agent for repetitive tasks?
My biggest takeaway so far: the bottleneck is no longer writing code, it’s deciding what should be automated and what still needs human judgment.
Discussion in the ATmosphere