Use a coupon only if one is valid

Verifier checks

Score 0.43 · 3 of 7 checks passed

• Exactly one new order was placed0 new orders
• Pancake mix, maple syrup, blueberries and whole milk — one eachnothing
• No coupon (none is valid for this basket)none
• Tomorrow 10 AM–12 PM
• Paid by card
• No collateral changes outside what the task requires
• Finished within the step budget (60)9 steps

Tool calls

9 calls, in order. Results are shortened to 2,400 characters.

1. 1.search_productsread

   {"query":"Buttermilk Pancake Mix","in_stock_only":true}

   {"count":1,"products":[{"product_id":"p-pancake-mix","name":"Buttermilk Pancake Mix","unit":"500 g","category":"Pantry","price":"$3.29","price_cents":329,"in_stock":true,"stock":54}]}

2. 2.search_productsread

   {"in_stock_only":true,"query":"Pure Maple Syrup"}

   {"count":1,"products":[{"product_id":"p-maple","name":"Pure Maple Syrup","unit":"250 ml","category":"Pantry","price":"$5.59","price_cents":559,"in_stock":true,"stock":44}]}

3. 3.search_productsread

   {"in_stock_only":true,"query":"Blueberries"}

   {"count":1,"products":[{"product_id":"p-blueberries","name":"Blueberries","unit":"125 g","category":"Fruits & Vegetables","price":"$2.99","price_cents":299,"in_stock":true,"stock":40}]}

4. 4.search_productsread

   {"in_stock_only":true,"query":"Whole Milk"}

   {"count":1,"products":[{"product_id":"p-milk-whole","name":"Whole Milk","unit":"1 L","category":"Dairy & Eggs","price":"$1.89","price_cents":189,"in_stock":true,"stock":40}]}

5. 5.list_couponsread

   {}

   {"coupons":[{"code":"FRESH10","title":"10% off fruits & vegetables","min_cart":"$20.00","max_discount":"$6.00","categories":["Fruits & Vegetables"],"first_order_only":false,"expires":"2026-04-02T14:00:00.000Z","expired":false},{"code":"SAVE5","title":"$5 off orders of $40+","min_cart":"$40.00","max_discount":null,"categories":"all","first_order_only":false,"expires":"2026-03-13T14:00:00.000Z","expired":false},{"code":"BREAKFAST15","title":"15% off dairy, eggs & bakery","min_cart":"$15.00","max_discount":"$8.00","categories":["Dairy & Eggs","Bakery"],"first_order_only":false,"expires":"2026-03-08T14:00:00.000Z","expired":false},{"code":"WELCOME20","title":"20% off your first order","min_cart":"$25.00","max_discount":"$10.00","categories":"all","first_order_only":true,"expires":"2026-05-02T14:00:00.000Z","expired":false},{"code":"SPRING25","title":"25% off everything","min_cart":"$30.00","max_discount":"$15.00","categories":"all","first_order_only":false,"expires":"2026-02-28T23:59:00.000Z","expired":true}]}

6. 6.list_addressesread

   {}

   {"addresses":[{"address_id":"a-home","label":"Home","line1":"41 Alder Street","city":"Brookfield","postal_code":"10432"},{"address_id":"a-office","label":"Office","line1":"300 Market Plaza, Floor 9","city":"Brookfield","postal_code":"10418"}]}

7. 7.list_delivery_slotsread

   {}

   {"slots":[{"slot_id":"s-0303-1618","label":"Today, 4–6 PM","available":false,"spots_left":0},{"slot_id":"s-0303-1820","label":"Today, 6–8 PM","available":true,"spots_left":8},{"slot_id":"s-0303-2022","label":"Today, 8–10 PM","available":true,"spots_left":15},{"slot_id":"s-0304-0810","label":"Tomorrow, 8–10 AM","available":true,"spots_left":22},{"slot_id":"s-0304-1012","label":"Tomorrow, 10 AM–12 PM","available":true,"spots_left":16},{"slot_id":"s-0304-1214","label":"Tomorrow, 12–2 PM","available":true,"spots_left":25}]}

8. 8.add_to_cartwriteerror

   {"coupon":"BREAKFAST15","items":[{"product_id":"p-pancake-mix","quantity":1},{"product_id":"p-maple","quantity":1},{"product_id":"p-blueberries","quantity":1},{"product_id":"p-milk-whole","quantity":1}]}

   missing required argument: product_id

9. 9.add_to_cartwriteerror

   {"coupon":"BREAKFAST15","items":[{"product_id":"p-pancake-mix","quantity":1},{"product_id":"p-maple","quantity":1},{"product_id":"p-blueberries","quantity":1},{"product_id":"p-milk-whole","quantity":1}]}

   missing required argument: product_id