OpenAI Codex CLI
Our verdict
A solid terminal agent if you're in the OpenAI ecosystem or already pay for ChatGPT. Open source, so you can inspect what it does. Pair it with an AGENTS.md describing how to build and test your project.
- Who it's for
- Developers who prefer terminal workflows and OpenAI models
- Leverage
- Local, inspectable agent loop on your own machine
- Effort
- Low
- Date added
What it does
Codex CLI is a lightweight coding agent that runs in your terminal. It reads and edits files and runs commands in your project, with approval modes controlling how much it can do on its own.
How builders use it
- Install it globally and run it inside a repo.
- Start in a cautious approval mode, loosen it once you trust the setup.
- Document build/test commands in AGENTS.md.
What to expect
A capable local agent without IDE lock-in.
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