Codex Manual

Your First Task

Start with understanding, then ask Codex to make one small verified change.

Open a project:

cd your-project
codex

First prompt:

Do not edit files yet. Explain this repository structure, how to run it, and how to test it.

Then try a small task:

Find one small improvement, explain the plan first, and wait for my confirmation before editing.

After confirmation:

Apply the plan, run the relevant tests, and summarize the changed files.

A good task includes a goal, scope, constraints, and verification method.