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Let ChatGPT agent fill a taco night grocery cart (Walmart blocked it)

PartialEvidence: Described by posterPosted Last checked

ChatGPT agent built Kiri Masters a correct taco cart for four on Instacart, but Walmart and Amazon Fresh blocked it.

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Prompt

Improved prompt

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Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Fill an online grocery cart for one meal tonight without checking out.

Questions to ask me first:
- Which store do you want me to use, and are you signed in there?
- How many people, and any dislikes or allergies?
- What do you already have at home?

Inputs (fill in or confirm):
- Meal: [MEAL, e.g. tacos]
- People: [NUMBER]
- Store: [STORE / ANY STORE THAT WORKS]
- Already have: [ITEMS]
- Budget: [AMOUNT]

Rules:
- Add items to the cart only; don't check out or pay.
- If a store blocks you or asks for sign-in or verification, stop and tell me instead of trying to get around it.
- Pick sensible sizes for the number of people.
- Tell me which store you used and why.

Checkpoint: Show me the shopping list before adding anything to a cart.

If you get stuck: If the first store fails, ask me before switching stores.

Verify before you finish: List every item in the cart with size and price, and flag anything missing or substituted.

Output: A cart summary with items, prices and the total.

Done when: The cart has everything for the meal and is ready for me to review and check out.

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The prompt they actually used

The exact prompt from the source.

Buy me ingredients for tacos for 4 people tonight

AI tool

ChatGPT agent

Outcome

Kiri Masters, who writes about retail e-commerce, asked ChatGPT agent to buy ingredients for tacos for four people that night. After some trial and error it built a correct cart, on Instacart. ChatGPT explained that it had tried Amazon Fresh and Walmart first, but both returned errors or asked for sign-in or verification steps that blocked it. When Masters asked it to try Walmart.com specifically, it was blocked again, twice.

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

Known limitations

PartialThe source says it only partly worked, or had a significant problem a person had to deal with.

What went wrong: It got a correct cart on Instacart after trial and error, but Amazon Fresh and Walmart blocked it or returned errors.

Source

Posted
by Kiri Masters (LinkedIn)
Last checked
Method:
How we verify

https://www.linkedin.com/posts/kiri-masters_i-tried-to-let-ai-buy-my-groceries-last-night-activity-7376640235943723008-3dLM

Context: Original prompt: quoted in the post. Improved prompt: our fuller version, not tested. The post date is estimated from the LinkedIn post ID. Masters is a retail e-commerce commentator.

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