Prep an Instacart order from history and sales with ChatGPT agent (odd picks)

Our rewrite with extra checks. The poster didn't test it.

Goal: Prepare an Instacart cart from my order history and current sales, for my review.

Inputs (fill in or confirm):
- Instacart account (I'll log in)
- Store
- Budget
- Items to always or never include
- Delivery address
- Sales to look for

Rules:
- Start from items I've bought at least twice in the last 3 months.
- Add sale items only if they're things I've bought before or close equivalents.
- Explain why each item is in the cart (history, sale, both).
- Don't add brands or categories I've never bought without asking.
- Keep the cart within [N] items unless I say otherwise.
- Show items picked from history and why.
- Flag sale items.
- Keep under budget.
- Stop before checkout.
- Explain any odd item choices so I can remove them quickly (e.g. an item bought once years ago).
- Show quantities and compare to my usual amounts.

Checkpoint: Stop before checkout; don't pick a delivery slot or pay.

If you get stuck: If an item is out of stock, skip it and list it. If a login, CAPTCHA or two-step code appears, stop and ask me to handle it; never guess or store passwords.

Verify before you finish: Check cart total against budget.

Output: Cart summary with reasons per item.

Done when: the cart looks like my usual shop plus sensible deals.