# Let your personal agent watch for a good find.

One example in the guide monitors Facebook Marketplace and Craigslist for espresso machines.

URL: https://openyouragent.com/cases/marketplace-watch/
Curated by: zhoumo (https://x.com/thiszhoumo)
Published: 2026-10-05
Updated: 2026-10-05

Original creator: Matt Palmer
Source: https://x.com/mattyp/status/2092286281266962681
Evidence: https://x.ai/bot/guides/grok-bot-101
Sources checked: 2026-10-05
Review status: Source-reviewed; not independently tested.

## Curator’s note
A recurring search can be useful when the right item appears infrequently.

## Before you try it
Specify your location, budget and selection criteria; keep purchasing as a separate decision.

## Suggested approach
1. Describe exactly what you are looking for.
2. Ask for a short comparison with original listing links.
3. Choose which listing, if any, to follow up on.

## Suggested prompt
Help me compare these listings against my criteria. Include source links and flag anything uncertain. Do not contact sellers or buy anything.