Set up Codex on Mac
Codex CLI signed in with project instructions and safe sandbox defaults.
First win
Codex prints its version and login status.
Best for
Codex starters
Needs
Mac, ChatGPT or API access, Node or Homebrew
Example outcome
Codex is installed, signed in, and ready.
The useful setup outcome is a clear terminal receipt: Codex responds, auth is verified, and the next task can start in a real repo.
% codex --version
Codex installed
% codex
Reading AGENTS.md and repository context...
codex> Inspect this project and propose one safe first task.
Plan ready • no files changed yet