Codex

Codex is OpenAI’s coding agent. In local mode it works from a terminal or IDE, reads the repository, edits files, runs commands, and helps with tasks such as building features, fixing bugs, and reviewing unfamiliar code.

Codex can also run delegated tasks in a cloud environment, where it works in an isolated copy of a repository and returns changes for review. That is useful when the task is clear enough to hand off, but still needs a human to inspect the result.

For day-to-day work, treat Codex like a fast pair programmer with tools. It can get a lot done, but the responsibility for what lands in the repo stays with the person reviewing and committing the change.