OpenAI Codex
OpenAI’s coding agent, in the cloud and the terminal
Verdict
Built for delegating: hand a task to Codex cloud, let it work in its own environment, then review the changes and open a pull request. Also runs locally as the Codex CLI, in IDEs and as a desktop app. Reads AGENTS.md. A good fit for well-specified tickets you want to run in parallel, while the review load stays with you.
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