Codex CLI

OpenAI's terminal coding agent. Reads, edits, and runs code locally with configurable sandbox and approval controls. Built in Rust, open source.

Quick Reference

```bash

Interactive session

codex "your prompt here"

Non-interactive (scripting/CI)

codex exec "your prompt here" codex exec --json "prompt" # JSONL output codex exec -o result.txt "prompt" # Save last message