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Photo of a shopping list in, Costco cart out, and it never checks out without your yes

Building a grocery order from a scribbled list means an hour in the app.

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What hurt

BowTiedFrog (@BowTiedFrog) sends a photo of his Costco list; his main bot reads it and hands it to a bot whose only job is Costco Same-Day, which builds the cart from his Buy It Again history. Not affiliated with xAI.

What to install or create

The Costco bot logs into Same-Day in its own browser, matches items to his past purchases with sizes and prices, reports out-of-stock items with a substitute, turns anything marked "?" into priced options, and adjusts the cart by text. It remembers preferences like standard delivery.

Bots

  • Main bot

    Reads the list photo and hands it off.

  • Costco

    Builds the Same-Day cart and stops before checkout.

Plugins

  • Browser

    Required

Routines

  • None on the first run. Watch one manual pass first.

The prompt

His Costco bot's rules (author-quoted)

Quoted from @BowTiedFrog — as published. Do not invent a second system prompt.

Its rules, set once:
🍌 organic fruit when they have it
🏷️ Kirkland when it matches
🚚 never pay for priority
💳 card on file
🛑 never check out without my yes

First run

  1. 1Read https://x.com/BowTiedFrog/status/2108608298320843021 (credit @BowTiedFrog).
  2. 2Create a bot named for your store whose job is: build my cart, stop before checkout.
  3. 3Log into the store once in its browser.
  4. 4Do one order together, correcting picks and sizes as you go.
  5. 5Write your preferences into its rules, ending with: never check out without my yes.

Approval fence

It builds the cart and asks "Place it?"; nothing is ordered until he says yes.

What to tweak

Do one order together first, then lock in your preferences and keep the stop before checkout.

Source

BowTiedFrog @BowTiedFrog · Original post

Not affiliated with xAI. We did not write this prompt. Third-party template terms still apply.

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