Previous value: -"The merchant's own description (get_product only)."New value: +"Product description from the source catalog, when returned."

Previous value: -"NULL when we have no shelf read under 24 hours old (shelf_observed_at says when). Do not call it in or out of stock; when is_eligible_checkout is true it can still be ordered."New value: +"NULL when we have no shelf read under 24 hours old (shelf_observed_at says when). Null is not evidence of in-stock or out-of-stock state; checkout eligibility is independent."

Previous value: -"`local_delivery`: delivered locally. `concierge`: JENNi collects it from the shop and delivers it; buy it with start_checkout like any orderable offer. `ship_to_home`: shipped to the shopper. `in_store_only`: observed on the shelf, but it cannot be ordered through JENNi. `pickup` is store-owned capability metadata, not a JENNi customer reservation/ready/handoff flow, and is never returned. These are not executable MCP methods: ordering happens on the storefront."New value: +"`local_delivery`: delivered locally. `concierge`: JENNi collects it from the shop and delivers or ships it to the shopper. `ship_to_home`: shipped to the shopper. `in_store_only`: observed on the shelf, but it cannot be ordered through JENNi. `pickup` is store-owned capability metadata, not a JENNi customer reservation/ready/handoff flow, and is never returned. These are not executable MCP methods: ordering happens on the storefront."

Previous value: -"True: this offer can be ordered through JENNi; call start_checkout with it when the shopper wants to buy. start_checkout and the checkout page re-check the offer and say why if it can no longer be ordered, so do not ask the shopper to confirm stock or hours first. False: do not send the shopper to checkout for this offer. Nothing is charged until the shopper places the order on the checkout page."New value: +"True when this offer is currently eligible for ordering through JENNi; false otherwise. Eligibility and price are checked again at hosted checkout. Nothing is charged until the buyer places the order on the checkout page."

Previous value: -"Observed shelf price. Browse information only; not a checkout price. Use `price` and is_eligible_checkout for purchase."New value: +"Observed shelf price for browsing, not a checkout price. Purchase price and checkout eligibility are separate fields."

Previous value: -"Observed shelf price. Browse information only; not a checkout price. Use `price` and is_eligible_checkout for purchase."New value: +"Observed shelf price for browsing, not a checkout price. Purchase price and checkout eligibility are separate fields."

Previous value: -"Buyable size/colour variants. Give the shopper the variant url so the page opens on that choice. search_catalog lists at most 30; get_product lists all."New value: +"Buyable size/colour variants and their product URLs. Search responses contain at most 30; detail responses may include all variants."

Previous value: -"Always empty in product discovery. This field does not verify or rule out fulfillment availability."New value: +"JENNi's single best offer for this product (price, delivery_promise, fulfilled_by, is_eligible_checkout), without source-shop details."

Added value: +{
+  "description": "Shopper-facing delivery promise, e.g. \"Get it today\" (local delivery) or \"Ships to you\".",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Shopper-facing fulfiller line: \"Delivered by JENNi\".",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Previous value: -"`local_delivery`: delivered from the shop. `concierge`: JENNi collects it from the shop and delivers it; buy it with start_checkout like any orderable offer. `ship_to_home`: shipped from the shop. `in_store_only`: the shop carries it, but it cannot be ordered through JENNi; tell the shopper to visit the shop. `pickup` is store-owned capability metadata, not a JENNi customer reservation/ready/handoff flow, and is never returned. These are not executable MCP methods: ordering happens on the storefront."New value: +"`local_delivery`: delivered locally. `concierge`: JENNi collects it from the shop and delivers it; buy it with start_checkout like any orderable offer. `ship_to_home`: shipped to the shopper. `in_store_only`: observed on the shelf, but it cannot be ordered through JENNi. `pickup` is store-owned capability metadata, not a JENNi customer reservation/ready/handoff flow, and is never returned. These are not executable MCP methods: ordering happens on the storefront."

Previous value: -"The exact variant this shop holds."New value: +"The exact variant this offer covers."

Previous value: -"Store shelf price observed at the named store. Browse information only; not a checkout price. Use `price` and is_eligible_checkout for purchase."New value: +"Observed shelf price. Browse information only; not a checkout price. Use `price` and is_eligible_checkout for purchase."

Previous value: -0New value: +1

Previous value: -"Store shelf price observed at the named store. Browse information only; not a checkout price. Use `price` and is_eligible_checkout for purchase."New value: +"Observed shelf price. Browse information only; not a checkout price. Use `price` and is_eligible_checkout for purchase."

Added value: +{
+  "properties": {
+    "available": {
+      "description": "True only when the requested mode was verified as orderable for this exact product, ZIP and quantity.",
+      "type": "boolean"
+    },
+    "fulfillment_mode": {
+      "enum": [
+        "local_delivery",
+        "ship_to_home"
+      ],
+      "type": "string"
+    },
+    "unit_price": {
+      "type": [
+        "string",
+        "null"
+      ]
+    }
+  },
+  "required": [
+    "fulfillment_mode",
+    "available"
+  ],
+  "type": "object"
+}

Removed value: -{
-  "description": "How many offers this product has. search_catalog lists at most 5, orderable ones first; get_product lists all.",
-  "type": "integer"
-}

Added value: +"Always empty in product discovery. This field does not verify or rule out fulfillment availability."

Removed value: -{
-  "type": [
-    "string",
-    "null"
-  ]
-}

Removed value: -{
-  "type": [
-    "number",
-    "null"
-  ]
-}

Previous value: -"The disclosure a shopper sees for this shop; relay it."New value: +"A fulfillment disclosure, when applicable."

Removed value: -{
-  "type": "string"
-}

Removed value: -{
-  "type": "string"
-}

Previous value: -"Storefront page for this exact offer."New value: +"Storefront page for this exact product."

Previous value: -[
-  "store_id",
-  "is_eligible_search",
-  "is_eligible_checkout",
-  "fulfillment",
-  "availability"
-]New value: +[
+  "product_id",
+  "is_eligible_search",
+  "is_eligible_checkout",
+  "fulfillment",
+  "availability"
+]

Added value: +0

Previous value: -[
-  "product",
-  "requested_context"
-]New value: +[
+  "product",
+  "requested_context",
+  "fulfillment_option"
+]

Previous value: -"NULL when we cannot read that shop's shelf, or the last read is over 24 hours old (shelf_observed_at says when). Null is not 'out of stock' — it means unknown, and must not be presented as either availability state."New value: +"NULL when we have no shelf read under 24 hours old (shelf_observed_at says when). Do not call it in or out of stock; when is_eligible_checkout is true it can still be ordered."

Previous value: -"`local_delivery`: delivered from the shop. `concierge`: a person goes to the shop and buys it on the buyer's behalf. start_checkout returns a hosted request link, even when is_eligible_checkout is false; the page determines whether a request can proceed. The link is not a stock reservation, durable quote or completed purchase. `ship_to_home`: shipped from the shop. `in_store_only`: the shop carries it, but it cannot be ordered through JENNi; tell the shopper to visit the shop. `pickup` is store-owned capability metadata, not a JENNi customer reservation/ready/handoff flow, and is never returned. These are not executable MCP methods: ordering happens on the storefront."New value: +"`local_delivery`: delivered from the shop. `concierge`: JENNi collects it from the shop and delivers it; buy it with start_checkout like any orderable offer. `ship_to_home`: shipped from the shop. `in_store_only`: the shop carries it, but it cannot be ordered through JENNi; tell the shopper to visit the shop. `pickup` is store-owned capability metadata, not a JENNi customer reservation/ready/handoff flow, and is never returned. These are not executable MCP methods: ordering happens on the storefront."

Previous value: -"True when the storefront offers this exact offer for order: ordering on, a checkout price quote, a shelf in stock, a courier or shipping, and a stated delivery fee. Local delivery is also refused when the shop's own hours show no opening within the week; a search result may not carry hours, and start_checkout re-checks with them. False forbids direct checkout. An explicitly `concierge` offer may still use start_checkout for a hosted request handoff; the product page checks whether a request is available. Neither eligibility nor a handoff reserves stock, creates a quote or places an order."New value: +"True: this offer can be ordered through JENNi; call start_checkout with it when the shopper wants to buy. start_checkout and the checkout page re-check the offer and say why if it can no longer be ordered, so do not ask the shopper to confirm stock or hours first. False: do not send the shopper to checkout for this offer. Nothing is charged until the shopper places the order on the checkout page."