Usage Overview

The Usage section explains how to continue the Codex work you normally run on the Mac from the iPhone. It assumes pairing is already complete, Bridge is ready, and you can open Projects from the iPhone.

The mental model is simple: the real work continues on the Mac, while the iPhone lets you quickly check what is happening, send the next instruction, and switch context when needed.

Find the right page fast

If you want to...	Read this page
understand the big picture with Codex App first	Use It with Codex App
start from opening a project	Open a Project
learn how to read and resume threads	Check a Thread
go deeper on sending requests with Composer	Send with Composer
choose between branches, skills, and Exec	Use Branches, Skills, and Exec
troubleshoot missing projects before you can start	Cannot See Projects

Core flow to remember

1. Open the target workspace from Home or Projects.
2. Resume an existing Thread or start New Thread.
3. Send a request or follow-up from the Composer at the bottom.
4. Use branch switching, Skills, or Exec when needed.
5. Read the Work Log and Answer, then send the next instruction if needed.

How to read this section

• If you use the Mac Codex App too, start with Use It with Codex App for the big picture.
• If you want the everyday entry points first, read Open a Project and Check a Thread.
• For sending requests and fine-grained controls, read Send with Composer.
• If you want to choose between branches, skills, and one-shot execution, read Use Branches, Skills, and Exec.

What each screen is for

• Home Best when you want to resume quickly from the default Host, recent projects, or favorites.
• Projects Best when you want the full list or need to add or edit a Project.
• Thread The main screen for continuing the conversation while reading the Work Log and Answer.
• Composer Where you send new requests, follow-up instructions, images, and commands.

What you can do from the iPhone

• check and resume existing Threads
• start new Threads
• send follow-up turns
• switch branches
• use Skills and Exec

Even if the live connection on the iPhone drops, the work on the Mac often keeps going. When you are away from the desk, it helps to think of the iPhone as the window for progress checks and follow-up instructions.