UCP Playground/Shared Session
Try it yourself
Storeavocadogreenmattress.com
ModelGemini 3.6 Flash
OutcomeCart Created
DateSep 20, 2026, 11:03 PM
Tokens56,142 (54,617p / 1,525c)
Duration10.6s
Turns3
StepsSearch ProductsView DetailsAdd to CartCheckout URL
Connected withSnapshot at session start
Negotiationv2026-08-25 · 7/8 active · shopping
  1. DiscoverRead /.well-known/ucp (declares 2026-08-25)
  2. Select versionMerchant and platform both run 2026-08-25
  3. Intersect8 declared · 7 shared spec · 1 vendor · 0 excluded
  4. Resolve extensionsActive extension blocks: shopping.fulfillment, shopping.discount
  5. ActivateAgent runs the shopping prompt with 9 negotiated capabilities
7 shared · 1 vendor · 0 excludedprompt: shopping
  • dev.ucp.shopping.cartactive
    2026-08-25
    Shared spec capability at a version both sides run.
  • dev.ucp.shopping.catalog.lookupactive
    2026-08-25
    Shared spec capability at a version both sides run.
  • dev.ucp.shopping.catalog.searchactive
    2026-08-25
    Shared spec capability at a version both sides run.
  • dev.ucp.shopping.checkoutactive
    2026-08-25
    Shared spec capability at a version both sides run.
  • dev.ucp.shopping.discountactive
    2026-08-25
    Shared spec capability at a version both sides run.
  • dev.ucp.shopping.fulfillmentactive
    2026-08-25
    Shared spec capability at a version both sides run.
  • dev.ucp.shopping.orderactive
    2026-08-25
    Shared spec capability at a version both sides run.
  • dev.shopify.catalogvendor
    2026-08-25
    Vendor namespace, not protocol-governed; passed through as the merchant declares it.
Servicesdev.ucp.shoppingmcp · embedded

Profile-only: this reads what the merchant declares against what this platform (2026-08-25) implements. It does not call any tool.

Buyer contextCountryUSCurrencyUSDLanguageen

Conversation

Find a pillow for a side sleeper. Pick the best match yourself without asking me, add one to the cart, then read back the item name and the cart total. Do not check out.
Reasoning
**Selecting Best Pillow** I am now focusing on identifying the optimal pillow for side sleepers, aiming to make a selection and proceed with adding it to the cart. My current objective is to finalize this selection and move to the next step of the process. **Searching for Pillows** I'm currently exploring the catalog for suitable pillows, specifically focusing on options designed for side sleepers. My immediate next step is to utilize the `search_catalog` tool, ensuring I include an `in_stock` filter for relevant results.
create_cart484ms
Reasoning
**Refining Pillow Selection** I'm currently sifting through search data to pinpoint the most relevant pillow types. My focus is on understanding how specific designs, like molded latex or ergonomically curved options, cater to different sleeping positions.
Reasoning
**Adding Item to Cart** I've successfully added the "Avocado Green Pillow - Standard / Single / Side-Sleeper" to the cart, bringing the total to $139.00. I'm ready to proceed to checkout.
I've selected the Avocado Green Pillow - Standard / Single / Side-Sleeper as the best match for a side sleeper, as it features an ergonomically curved side-sleeper design for optimal neck support and spinal alignment.

Cart Details:
- Item: Avocado Green Pillow - Standard / Single / Side-Sleeper
- Quantity: 1
- Cart Total: $139.00

You can view or continue your order here: Continue to Cart