Manage calendar and email

From the linked report, custom agent shows up in a write-up about manage calendar and email. The linked post is the primary source for steps and outcomes.

Agent or tool

Custom agent

Topic

Email & Inbox

Reported on

Reddit

Added

2026-10-15

Why it matters

Email is where a lot of admin quietly piles up. An agent that can read, sort, draft and follow up turns an inbox from a to-do list into something closer to a summary. It is one of 106 sightings filed under Email & Inbox on Agent Sightings (number 89 by interest), and one of 182 involving Custom agent.

How you could try it

Here is a reusable prompt, written by us in our own words, that captures the task. Paste it into your own agent or any similar agent and adjust the details to your situation.

Go through my mail for this goal: manage calendar and email. Propose labels, drafts, and unsubscribes as a checklist; change nothing until I approve.

Copy prompt

Source

Read the original first-hand account on Reddit: https://www.reddit.com/r/ChatGPT/comments/1sle6ui/i_gave_an_ai_agent_acess_to_m…. Our summary is a paraphrase; details are in the source.

Related sightings

• Schedule meetings by email and update the calendar · Custom agent · Email & Inbox
  From the linked report, the poster assembled a background agent that scans their inbox for meeting requests, pulls the proposed date and time from…
• Send a 7am daily brief from email, calendar and Todoist · Custom agent · Email & Inbox
  Community report: the poster assembled a personal agent that runs at 7am, reads their email, calendar, and Todoist, then sends one email with a…
• Check supplier invoices for duplicates and missing GST · Custom agent · Email & Inbox
  Community report: supplier invoices land in a shared inbox, an AP tool captures the invoice data, and an agent compares each one with prior…
• Cancel and refund subscriptions by searching email and calling · Grok Bot · Email & Inbox
  Case study takeaway: grok Bot shows up in a write-up about cancel and refund subscriptions by searching email and calling. The linked post is the…
• Rebook a work flight to save money · Custom agent · Travel & Booking
  A published walkthrough shows arden monitored Someone's booked Zurich work flight. It sent a text proposing a rebook that would save $7,750 and…
• Get a billing dispute refunded by a support agent · Custom agent · Finance
  Case study takeaway: the company's AI agent produced and issued a refund to a customer who had a dispute with an incorrect Vercel bill.

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