Optimize my family's weekly basket by unit price, cart stays mine
A father of two wired the AI to a grocery MCP connector and runs his real 20-item family basket through constraint prompts (household of four, $150 budget, peanut-free, one vegetarian meal a day): The AI returns per-item unit prices, promotions, cheaper substitutes and buy/sale/skip verdicts, catching traps like a 64 oz club jar costing more per ounce than the 32 oz jar. Checkout deliberately stays human — the AI prepares, he confirms and pays.
This only partly worked. Read what happened before you try it.
How it works
- Authorize a grocery MCP connector and verify one item's price against the store app
- Paste the 20-item family basket with a parameters block (budget, household size, dietary rules, substitution rules)
- The AI computes unit prices and ranks options
- The AI flags promotions and BOGO traps
- The AI returns buy, only-if-on-sale or skip per item with an estimated total
- He reviews, confirms the cart and pays himself
Why it’s worth knowing
The agent does the per-ounce math across the whole basket and tells him to skip deals that would raise his total.
Where it’s from
Summarized from a public post on docs.bswen.com. See the original ↗