A Facebook Marketplace Watcher That Asks Your Chief of Staff Bot When It Needs a Judgment Call: Grok Bot 101

Level Beginner
Setup~30 min (estimated)
Evidence Anecdotal
CostNot stated in source
No-codeYes

Grok BotSource-linkedBeginner-friendly

What they did

In xAI's Grok Bot 101 guide, the author describes a Marketplace bot that watches Facebook Marketplace and Craigslist for espresso machines (and searches Marketplace for a variegated Monstera Albo plant), using the Facebook login already on the bot's computer. When a listing needs a judgment call, it asks his Chief of Staff bot. The guide also describes having a bot add items to Costco and Amazon carts and compare prices, delivery charges and times.

How it went

xAI guide Grok Bot 101 by Matt Palmer (Sep 11, 2026): Marketplace bot watches Facebook Marketplace and Craigslist for espresso machines and asks a Chief of Staff bot for judgment calls; no results given. Marketplace sites may limit automated browsing. Keep message sending manual

Worth knowing

xAI guide Grok Bot 101 by Matt Palmer (Sep 11, 2026): Marketplace bot watches Facebook Marketplace and Craigslist for espresso machines and asks a Chief of Staff bot for judgment calls; no results given.
Marketplace sites may limit automated browsing. Keep message sending manual.

Prompt

Cleaned version rewritten from the source — not a direct quote.

Watch [Facebook Marketplace and Craigslist] near [location] for [item] with [must-haves] under [price]. Check [twice a day]. For each new match, send me the price, condition, distance and link, and say whether it's a good deal compared with recent listings. If you're unsure whether something fits, ask [my other bot/me] before flagging it. Never message a seller or agree to buy without my OK.

Recommended

Try it in Grok Bot

Copy the prompt (button below).
Open Grok Bot chat and paste it. Replace any [bracketed] placeholders.
Connect the listed tools (as needed) as connectors when Grok Bot asks.
If the task repeats, ask: "Make this a daily routine."

Alternatives: the same prompt works in Claude, ChatGPT Agent, OpenClaw.

Set it up

Stack: Grok Bot

Read the original source for full context.
Connect the tools your agent needs.
Paste the prompt and replace [bracketed] placeholders.
Run once manually and check the output before scheduling it.

Generic suggested steps, not from the source.

Evidence

Source: Web · 2026-09-11 · Verified by us: not yet · Report broken or outdated

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