generated: '2026-08-26'
method: derived
source: mcp/rhone-apparel-mcp-tools.json
note: >-
  Entity graph derived from the JSON Schema inputSchemas of the 13 live UCP/MCP tools. No OpenAPI
  exists for this provider, so the MCP tool contract is the machine-readable source. Only entities
  and relationships that appear in those schemas are recorded.
identifier_scheme:
  format: "gid://shopify/<Type>/<id>"
  types_seen: [Checkout, Cart, Order, Product, ProductVariant]
entities:
  - name: Product
    tools: [search_catalog, lookup_catalog, get_product]
    description: A garment in Rhone's catalog, addressable by identifier or found by query/filters.
    relationships:
      - has_many: ProductVariant
        via: variants
  - name: ProductVariant
    tools: [lookup_catalog, get_product]
    description: A purchasable size/colour of a product; the unit added to a cart line item.
    relationships:
      - belongs_to: Product
  - name: Cart
    tools: [get_cart, create_cart, update_cart, cancel_cart]
    description: A mutable collection of line items before checkout.
    relationships:
      - has_many: LineItem
        via: line_items
  - name: LineItem
    tools: [create_cart, update_cart, create_checkout, update_checkout]
    description: A quantity of a product variant inside a cart or checkout.
    relationships:
      - belongs_to: Cart
      - belongs_to: Checkout
      - has_one: ProductVariant
  - name: Checkout
    tools: [get_checkout, create_checkout, update_checkout, complete_checkout, cancel_checkout]
    description: >-
      The purchase transaction - line items, totals, taxes, discounts, fulfillment and payment
      instruments. complete_checkout requires an idempotency key.
    relationships:
      - has_many: LineItem
      - has_one: PaymentInstrument
        via: payment.instruments
      - has_one: Address
        via: billing_address
      - becomes: Order
  - name: PaymentInstrument
    tools: [create_checkout, update_checkout]
    description: A tokenized payment method (card, Apple Pay token, Google Pay) supplied to a checkout.
    relationships:
      - belongs_to: Checkout
      - has_one: Address
        via: billing_address
  - name: Address
    tools: [create_checkout, update_checkout]
    fields: [street_address, extended_address, address_locality, address_region, postal_code, address_country, first_name]
  - name: Order
    tools: [get_order]
    description: A completed purchase, read-only over the agent surface.
    relationships:
      - belongs_to: Checkout
value_objects:
  - name: Money
    shape: '{ amount: <integer minor units>, currency: <ISO 4217> }'
  - name: BuyerContext
    fields: [address_country, address_region, postal_code, language, currency]
  - name: Pagination
    fields: [cursor, limit]
x-evidence:
  fetched: '2026-08-26'
  url: https://rhone.myshopify.com/api/ucp/mcp
  http_status: 200