Email scheduled project summaries with Codex
Codex can send Gmail summaries on a schedule with no manual input. Task: Codex can send Gmail summaries on a schedule with no manual input. Here's how to set up Automations and the Gmail plugin step by step. Your Friday Report Writes Itself: Codex Automations and the Gmail Plugin Codex Automations — accessible via sidebar > automations > new automation — can send a Gmail summary of your project folder’s activity every Friday morning without you touching a keyboard. That’s the outcome. Everything below is how you get there. Most people who discover Codex treat it as a faster way to write code or generate a document. That’s underselling it by roughly half. The Automations feature combined with the Gmail plugin turns Codex into something closer to a scheduled agent: it wakes up on a cadence you define, reads files in a folder, synthesizes them, and emails the result to whoever needs it. No cron jobs. No API keys. No Python script running on a server somewhere. If you’ve ever spent twenty minutes on a Friday afternoon assembling a status update that could have been assembled by a machine, this is the feature you’ve been waiting for. What You’re Actually Building Here Before the steps, a concrete picture of the end state. You will have a Codex automation that runs on a schedule — daily, weekly, whatever you choose. It reads files inside a project folder you’ve designated. It synthesizes those files into a summary. Then it uses the Gmail plugin to send that summary to an email address you specify. The demo that illustrates this most clearly: a “marketing email automation” that reads transcript files from a working folder, summarizes the video topics covered that week, and sends the result via Gmail to a specified recipient. The whole setup takes under ten minutes. The automation then runs without any further input. There are two distinct capabilities being combined here. Automations handle scheduling and task definition. The Gmail plugin handles the email delivery leg. They’re configured separately and then composed together in a single automation prompt. Understanding that separation makes the setup much less confusing. One thing worth flagging early: Codex runs on GPT-5.5, and the agent burns through tokens while working. A weekly summary automation on a small folder is cheap. An automation that reads hundreds of large files daily is not. You’ll want to check your usage before setting aggressive schedules — more on that in the troubleshooting section. What You Need Before Starting A Codex subscription with sufficient credits. Automations consume tokens every time they run. Check your current balance at File > Settings > Usage tab before you build anything scheduled. Running an automation against a large folder on high reasoning could drain credits faster than you expect. A Gmail account you’re willing to connect. The Gmail plugin uses OAuth. You’ll authorize Codex to read and send email on behalf of that account. Use an account you actually control and monitor — not a shared team inbox unless you’ve thought through the access implications. A project folder with files in it. Automations that summarize work need something to summarize. Create a folder on your local machine, put relevant files in it (transcripts, notes, drafts, reports — whatever represents your working output), and know its path. The demo used a folder called “Codex demo” containing two transcript text files. Basic familiarity with Codex’s interface. If you’ve never opened Codex before, spend fifteen minutes with it first. The sidebar, the project folder selector, and the chat interface are all things you’ll navigate during this setup. Setting Up the Gmail Plugin Step 1: Install the Plugin Open Codex. Toggle the sidebar open. Navigate to the plugins tab. Find Gmail in the list and click “install plugin.” Codex will open your browser to an OAuth authorization screen. Sign in with the Gmail account you want to connect. Grant the requested permissions — Codex needs to be able to read your email and send on your behalf for the automation to work. Return to Codex. You should see Gmail listed as connected in the plugins tab. Now you have a Gmail-connected Codex instance. You can verify it works by opening a new chat and asking something like “what’s the latest unread email in my inbox?” If it returns real email data, the plugin is live. Step 2: Verify the Connection Does What You Expect; tools: Codex. Human role: The original post does not say how a person stayed involved.; limitations: Requires a Codex subscription with sufficient credits, as automations consume tokens per run. Gmail plugin needs OAuth authorization for read/send permissions. 'Full access' permission mode is necessary for unattended execution, which poses security risks if the folder contains sensitive data or the email account is critical. Token costs may escalate with large folders or high reasoning levels..
Tools
Published on Agent Work Atlas:
Overview
Codex can send Gmail summaries on a schedule with no manual input.
Workflow
Codex can send Gmail summaries on a schedule with no manual input. Here's how to set up Automations and the Gmail plugin step by step. Your Friday Report Writes Itself: Codex Automations and the Gmail Plugin Codex Automations — accessible via sidebar > automations > new automation — can send a Gmail summary of your project folder’s activity every Friday morning without you touching a keyboard. That’s the outcome. Everything below is how you get there. Most people who discover Codex treat it as a faster way to write code or generate a document. That’s underselling it by roughly half. The Automations feature combined with the Gmail plugin turns Codex into something closer to a scheduled agent: it wakes up on a cadence you define, reads files in a folder, synthesizes them, and emails the result to whoever needs it. No cron jobs. No API keys. No Python script running on a server somewhere. If you’ve ever spent twenty minutes on a Friday afternoon assembling a status update that could have been assembled by a machine, this is the feature you’ve been waiting for. What You’re Actually Building Here Before the steps, a concrete picture of the end state. You will have a Codex automation that runs on a schedule — daily, weekly, whatever you choose. It reads files inside a project folder you’ve designated. It synthesizes those files into a summary. Then it uses the Gmail plugin to send that summary to an email address you specify. The demo that illustrates this most clearly: a “marketing email automation” that reads transcript files from a working folder, summarizes the video topics covered that week, and sends the result via Gmail to a specified recipient. The whole setup takes under ten minutes. The automation then runs without any further input. There are two distinct capabilities being combined here. Automations handle scheduling and task definition. The Gmail plugin handles the email delivery leg. They’re configured separately and then composed together in a single automation prompt. Understanding that separation makes the setup much less confusing. One thing worth flagging early: Codex runs on GPT-5.5, and the agent burns through tokens while working. A weekly summary automation on a small folder is cheap. An automation that reads hundreds of large files daily is not. You’ll want to check your usage before setting aggressive schedules — more on that in the troubleshooting section. What You Need Before Starting A Codex subscription with sufficient credits. Automations consume tokens every time they run. Check your current balance at File > Settings > Usage tab before you build anything scheduled. Running an automation against a large folder on high reasoning could drain credits faster than you expect. A Gmail account you’re willing to connect. The Gmail plugin uses OAuth. You’ll authorize Codex to read and send email on behalf of that account. Use an account you actually control and monitor — not a shared team inbox unless you’ve thought through the access implications. A project folder with files in it. Automations that summarize work need something to summarize. Create a folder on your local machine, put relevant files in it (transcripts, notes, drafts, reports — whatever represents your working output), and know its path. The demo used a folder called “Codex demo” containing two transcript text files. Basic familiarity with Codex’s interface. If you’ve never opened Codex before, spend fifteen minutes with it first. The sidebar, the project folder selector, and the chat interface are all things you’ll navigate during this setup. Setting Up the Gmail Plugin Step 1: Install the Plugin Open Codex. Toggle the sidebar open. Navigate to the plugins tab. Find Gmail in the list and click “install plugin.” Codex will open your browser to an OAuth authorization screen. Sign in with the Gmail account you want to connect. Grant the requested permissions — Codex needs to be able to read your email and send on your behalf for the automation to work. Return to Codex. You should see Gmail listed as connected in the plugins tab. Now you have a Gmail-connected Codex instance. You can verify it works by opening a new chat and asking something like “what’s the latest unread email in my inbox?” If it returns real email data, the plugin is live. Step 2: Verify the Connection Does What You Expect
Reported result
The source describes the intended outcome of automated weekly summaries but provides no measured results, success rates, or specific business impact data. It claims setup takes under ten minutes and runs without further input, but these are unverified assertions. No evidence proves actual execution or sustained performance in a real business context.
Human role
The original post does not say how a person stayed involved.
Limitations
Requires a Codex subscription with sufficient credits, as automations consume tokens per run. Gmail plugin needs OAuth authorization for read/send permissions. 'Full access' permission mode is necessary for unattended execution, which poses security risks if the folder contains sensitive data or the email account is critical. Token costs may escalate with large folders or high reasoning levels.
Try it
I want to set up a Codex automation to send weekly project summaries via Gmail. First, verify I have a Codex subscription and a Gmail account. Install the Gmail plugin in Codex via the sidebar > plugins tab, completing OAuth authorization. Create a new automation in sidebar > automations > new automation. Name it 'Weekly Project Summary'. Attach my local project folder [replaceable input: path to project folder]. Write the prompt: 'Summarize files in this folder, identify main topics and incomplete items, then use @Gmail to send to [replaceable input: recipient email] with subject Weekly Summary.' Set schedule to [replaceable input: day/time]. Set permissions to 'full access'. Before enabling the schedule, run a manual test: ask Codex to draft and send a test email to my own address to verify plugin connectivity. Review the test email content for accuracy. Only after confirming the test email arrives and the summary is correct, enable the automation. Monitor credit usage in File > Settings > Usage after the first run. If credits drain too fast, reduce reasoning level or folder size. If email fails, check OAuth token expiration.
Source reports are not independently verified. Publication date is the catalog publication date, not the original article date.