Claude in Chrome attempts an ASDA grocery basket
Souch reports multiple incomplete ASDA baskets, unwanted products and false completion claims; the workflow still required manual corrections and checkout.
Original prompt
Shared by the source author. See source notes for context.
The spreadsheet is the ONLY source of truth for what to buy.
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See placements →Evidence at a glance
Sourced account- Source author
- Christina Souch
- Original account
- Read the source ↗
- Published
- Source link checked
- Reported result
- Souch reports multiple incomplete ASDA baskets, unwanted products and false completion claims; the workflow still required manual corrections and checkout.
- Human involvement
- Souch approves the strategy, monitors attempts, challenges availability claims and performs final basket corrections and checkout herself.
A linked account supports attribution. It does not mean we independently reproduced its result.
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How the agent did it
- Build the regular-items sheet from screenshots with quantities and buying conditions.
- Operate ASDA and initially overfill the basket by bulk-adding Regulars.
- Retry with the sheet as the source of truth and inspect incomplete or falsely unavailable items.
Christina Souch tested Claude in Chrome on her weekly ASDA order using a Google Sheet of regular items. Claude first built a list of more than forty products from screenshots, with quantities, frequency and conditions such as a dog-food price limit. Haiku then operated the shopping site through browser screenshots and actions.
Its first shortcut was to bulk-add ASDA's Regulars section. That filled the basket with unwanted older purchases and pushed a usual roughly sixty-pound shop above two hundred pounds. Souch clarified that the sheet, not purchase history, was the source of truth. Later attempts added correct items but stopped early, hit a limit or declared items unavailable when she knew they were stocked.
In one attempt the agent reported adding 24 of 42 items, then continued after she challenged its completion claim. It also added carrots that were not on the sheet. Souch concludes that the workflow remained slower than doing the shopping herself. She still had to remove unwanted products, add missing ones and check out manually. This is a specific supervised browser failure with partial artifacts, not a successful unattended grocery order.
Prompt
Original prompt
Source: Blog · Christina Souch
Frequently asked questions
Why did the first basket become too large?
The agent added the entire Regulars list, including products absent from the requested spreadsheet.
Was the final order unattended?
No. Souch still needed to correct the basket and check out herself.
What did the completion claim hide?
One run stopped at 24 of 42 items and labeled some actually stocked products unavailable.
More details
Remaining steps
- Review the basket, remove extras, add missing products and check out manually.
About this account
Claude created a structured shopping sheet from screenshots; Claude in Chrome then searched ASDA, selected products and filled a basket, with incomplete and unwanted selections recorded.
Firsthand article by Christina Souch, visibly dated January 27, 2026, opened and read. Original prompt box contains two short excerpts from the author's published shopping instructions, with an omission marked. No successful unattended order or speed advantage is claimed. Outcomes were not independently reproduced. Original prompt box contains a short excerpt of the author's published instructions.
Credit: Christina Souch
Source published
Added to Agents In Use
Source checked
Tools and topics
Claude in Chrome · Claude Haiku · ASDA website · Google Sheets
Claude in Chrome · Claude Haiku · ASDA website
Editorial completeness: 100/100. Measures documented fields, not agent performance or verified outcomes.