Find a list of missing invoices across work and personal email with ChatGPT agent

Posted

Aug 5, 2025 by Dawid Naude (LinkedIn)

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Last checked

Oct 17, 2026

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Method:

How we verify

Evidence: Described by posterThe person describes what happened in words, without screenshots or video.

Outcome

Testing ChatGPT agent, a poster gave it a list of invoices he owed his operations assistant, and he says it found all of them in his personal and work email. He also notes it booked accommodation successfully (they had to contact the hotel to cancel the test booking) and estimates about a 40% end-to-end completion rate on complex tasks for now.

Agent

ChatGPT agent

The source didn't share its exact prompt, so we wrote this from what it describes.

Run this task now, exactly as written below. Everything you need is here, so start straight away and only stop if something required is missing or a rule below tells you to.

Goal: Find every invoice on my list in my email accounts and gather them in one place.

Fill in before running:
- The list of invoices (supplier, date, amount): [LIST]
- Email accounts connected: [ACCOUNTS]
- Where to save them: [FOLDER]

Rules:
- Search each account for every item; match on supplier, amount and date.
- Mark each line found or not found, with the email date and subject.
- Don't reply to, forward or delete anything.
- Ask before booking or paying anything; this is search only.
- If a site asks for a login, a CAPTCHA or payment details, stop and hand control back to me.
- Ask for my OK before you pay, book, send, submit or cancel anything.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.

Output: A table of found and missing invoices with links to the emails.

You'll know it worked when: every invoice on the list is marked found or missing, with nothing changed in my inbox.

Run this task now, exactly as written below. Everything you need is here, so start straight away and only stop if something required is missing or a rule below tells you to.

Goal: Find every invoice on my list in my email accounts and gather them in one place.

Fill in before running:
- The list of invoices (supplier, date, amount): [LIST]
- Email accounts connected: [ACCOUNTS]
- Where to save them: [FOLDER]

Rules:
- Search each account for every item; match on supplier, amount and date.
- Mark each line found or not found, with the email date and subject.
- Don't reply to, forward or delete anything.
- Ask before booking or paying anything; this is search only.
- If a site asks for a login, a CAPTCHA or payment details, stop and hand control back to me.
- Ask for my OK before you pay, book, send, submit or cancel anything.
- Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify.
- For anything marked missing, suggest a search I can try myself before asking the supplier.

Output: A table of found and missing invoices with links to the emails.

You'll know it worked when: every invoice on the list is marked found or missing, with nothing changed in my inbox.

Before you finish: re-read my goal and constraints, check your answer against each one, and list anything you assumed or couldn't confirm.

Source

https://www.linkedin.com/posts/dawidnaude_weve-been-testing-chatgpt-agent-since-its-activity-7358371337981026305-Nk4h