You choose the examples
Paste or upload a few replies that sound like you. Remove private details first.
The easiest useful way to start with Codex
Download one file and put it in the folder you open with Codex. From there, Codex gives you one clear action at a time and waits until you are ready to continue.
No code. No giant setup checklist. No email gets sent or changed without your clear approval.
YOUR FIRST CONVERSATION
Built for beginners
The included AGENTS.md tells Codex to slow down, explain plain English,
show only the next action, and wait for you to finish before moving on.
Start here
Download the official ChatGPT desktop app and install it like any other app.
Sign in, then choose Codex. If the exact button looks different, look for Codex in the app switcher.
Name it My Codex Workspace. Download the onboarding file into it.
Open My Codex Workspace in Codex. Start a new task and type:
What happens next
Codex explains where you are, asks one simple question, and waits. If you get stuck, it makes the current step smaller instead of dumping more instructions.
Download AGENTS.mdIt explains what it can do and promises to wait after each step.
Connect Gmail now, or practice first with examples you provide.
You handle sign-in. Codex asks before reading even a small email sample.
A short inbox brief appears. Nothing is sent, moved, or marked read.
Teach your voice
Paste or upload a few replies that sound like you. Remove private details first.
If you prefer Sent mail, Codex asks what it may read and waits for a clear yes.
Codex shows a short summary of your tone, structure, greetings, and sign-offs.
You correct one sample. Codex updates the guide only after you approve it.
Your first useful win
Codex starts with a small read-only inbox sample and shows what needs attention. Only after you call it useful does Codex ask whether you want the same brief on a schedule.
REPLY TODAY 2 messages need your decision CAN WAIT 3 messages have no deadline today FOR YOUR INFORMATION 4 messages need no reply Nothing was sent, moved, labeled, or marked read.
If you approve recurring triage, Codex shows you the exact schedule and instructions before creating it. Scheduled runs appear in Scheduled.
The line that matters
This starter is designed for search, read, summarize, and draft-in-output workflows. Sending email, creating Gmail drafts, archiving, deleting, relabeling, marking read, or changing external data requires a separate, explicit instruction from you. The automation does none of those things.
Quick answers
No. Install the app, put one downloaded file in a folder, open that folder, and type “Onboard me.” Codex handles the explanation from there.
Type exactly: Onboard me. The file tells Codex to respond with one small step and wait for you.
Install the official ChatGPT desktop app, then choose Codex inside it. Advanced users can also use the Codex CLI, but this starter does not require a terminal.
No. Install the Gmail plugin and complete Google’s authorization flow yourself. Never paste a password, API key, recovery code, or session token into Codex.
No. The included rules prohibit sending or modifying Gmail. Suggested replies stay in the task output until you review them and give a separate explicit instruction.
Yes, when a scheduled task needs files in your local workspace. The computer must be powered on, the workspace must still be available, and the desktop app must be running.
Plugin availability can vary by plan, account, region, and workspace policy. Use a sanitized email export for the voice exercise, or ask your workspace admin about connector access. Do not work around an admin restriction.
Your entire first prompt
Product details checked July 24, 2026.