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Use a coupon only if one is valid

The user asked

Order what I need for pancakes: 1 Buttermilk Pancake Mix, 1 Pure Maple Syrup, 1 pack of Blueberries and 1 carton of Whole Milk. Use whichever coupon saves the most if any is valid, deliver to Home tomorrow between 10 AM and 12 PM, and pay by card.

The model's last message

Your order for pancakes is placed successfully! 🥞 The delivery slot is tomorrow between 10 AM and 12 PM to your Home address (41 Alder Street, Brookfield). Total due: $16.75 (paid by card). Order ID: QB-10501. Enjoy your pancakes!

15 model turns · 95,649 input / 7,714 output tokens · 460.4s · stopped: end

Verifier checks

Score 1.00 · 7 of 7 checks passed

  • Exactly one new order was placed1 new orders
  • Pancake mix, maple syrup, blueberries and whole milk — one eachp-blueberries×1, p-maple×1, p-milk-whole×1, p-pancake-mix×1
  • No coupon (none is valid for this basket)none
  • Tomorrow 10 AM–12 PMTomorrow, 10 AM–12 PM
  • Paid by card
  • No collateral changes outside what the task requires
  • Finished within the step budget (60)14 steps

Tool calls

14 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.add_to_cartwrite
    {"quantity":1,"product_id":"p-pancake-mix"}
    {"lines":[{"product_id":"p-pancake-mix","name":"Buttermilk Pancake Mix (500 g)","quantity":1,"unit_price":"$3.29","line_total":"$3.29"}],"coupon":null,"subtotal":"$3.29","discount":"$0.00","delivery_fee":"$2.99","total":"$6.28","total_cents":628}
  6. 6.add_to_cartwrite
    {"product_id":"p-maple","quantity":1}
    {"lines":[{"product_id":"p-pancake-mix","name":"Buttermilk Pancake Mix (500 g)","quantity":1,"unit_price":"$3.29","line_total":"$3.29"},{"product_id":"p-maple","name":"Pure Maple Syrup (250 ml)","quantity":1,"unit_price":"$5.59","line_total":"$5.59"}],"coupon":null,"subtotal":"$8.88","discount":"$0.00","delivery_fee":"$2.99","total":"$11.87","total_cents":1187}
  7. 7.add_to_cartwrite
    {"product_id":"p-blueberries","quantity":1}
    {"lines":[{"product_id":"p-pancake-mix","name":"Buttermilk Pancake Mix (500 g)","quantity":1,"unit_price":"$3.29","line_total":"$3.29"},{"product_id":"p-maple","name":"Pure Maple Syrup (250 ml)","quantity":1,"unit_price":"$5.59","line_total":"$5.59"},{"product_id":"p-blueberries","name":"Blueberries (125 g)","quantity":1,"unit_price":"$2.99","line_total":"$2.99"}],"coupon":null,"subtotal":"$11.87","discount":"$0.00","delivery_fee":"$2.99","total":"$14.86","total_cents":1486}
  8. 8.add_to_cartwrite
    {"product_id":"p-milk-whole","quantity":1}
    {"lines":[{"product_id":"p-pancake-mix","name":"Buttermilk Pancake Mix (500 g)","quantity":1,"unit_price":"$3.29","line_total":"$3.29"},{"product_id":"p-maple","name":"Pure Maple Syrup (250 ml)","quantity":1,"unit_price":"$5.59","line_total":"$5.59"},{"product_id":"p-blueberries","name":"Blueberries (125 g)","quantity":1,"unit_price":"$2.99","line_total":"$2.99"},{"product_id":"p-milk-whole","name":"Whole Milk (1 L)","quantity":1,"unit_price":"$1.89","line_total":"$1.89"}],"coupon":null,"subtotal":"$13.76","discount":"$0.00","delivery_fee":"$2.99","total":"$16.75","total_cents":1675}
  9. 9.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}]}
  10. 10.apply_couponwriteerror
    {"code":"BREAKFAST15"}

    Coupon BREAKFAST15 needs a cart of at least $15.00

  11. 11.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}]}
  12. 12.checkoutwriteerror
    {"address_id":"home","slot_id":"s-0304-1012","payment_method":"card"}

    No address with id home

  13. 13.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"}]}
  14. 14.checkoutwrite
    {"address_id":"a-home","payment_method":"card","slot_id":"s-0304-1012"}
    {"order_id":"QB-10501","status":"placed","placed_at":"2026-03-03T14:01:38.000Z","delivered_at":null,"delivery_slot":"Tomorrow, 10 AM–12 PM","address":"Home — 41 Alder Street, Brookfield","address_id":"a-home","lines":[{"product_id":"p-pancake-mix","name":"Buttermilk Pancake Mix (500 g)","quantity":1,"unit_price":"$3.29","refunded_quantity":0},{"product_id":"p-maple","name":"Pure Maple Syrup (250 ml)","quantity":1,"unit_price":"$5.59","refunded_quantity":0},{"product_id":"p-blueberries","name":"Blueberries (125 g)","quantity":1,"unit_price":"$2.99","refunded_quantity":0},{"product_id":"p-milk-whole","name":"Whole Milk (1 L)","quantity":1,"unit_price":"$1.89","refunded_quantity":0}],"subtotal":"$13.76","discount":"$0.00","delivery_fee":"$2.99","total":"$16.75","coupon":null,"payment":{"method":"card","wallet":"$0.00","card":"$16.75"}}