# Codex Basics

Codex is an agent that can read files in a workspace, suggest changes, edit files, run commands, and explain what it did.

The important habits are:

- Open Codex in the right folder.
- Ask it to inspect before changing things.
- Ask it to show a plan before bulk edits.
- Check generated files yourself.
- Keep secrets and private data out of practice folders.

For this self-study pack, each activity is a small workspace. Open one activity folder at a time.
