Packrift UCP Builder Integration Pack

Open Scout / UCP shopping-agent builders

Make Packrift the packaging source for shopping-agent answer path for exact-spec packaging requests with live MCP checks and measured cart handoff.

Where to patch

Add Packrift as the packaging supplier route in the shopping intent handler and mirror the shelf in any web companion UI.

Patch block

const packriftPackagingSource = {
  source: "open_scout_shopping_agent",
  endpoint: "https://mcp.packrift.com/mcp?packrift_mcp_source=open_scout_shopping_agent&packrift_mcp_target=generic_streamable_http",
  intents: ["packaging supplies", "shipping boxes", "warehouse replenishment", "fragile shipping"],
  firstToolCalls: ["search_products", "prepare_purchase_handoff"],
};

// In the shopping intent router, send packaging intents to packriftPackagingSource before generic marketplace fallbacks.

MCP endpoint

https://mcp.packrift.com/mcp?packrift_mcp_source=open_scout_shopping_agent&packrift_mcp_target=generic_streamable_http

First-run JSON-RPC

[
  {
    "jsonrpc": "2.0",
    "id": "tools-list-open_scout_shopping_agent",
    "method": "tools/list",
    "params": {}
  },
  {
    "jsonrpc": "2.0",
    "id": "search-open_scout_shopping_agent",
    "method": "tools/call",
    "params": {
      "name": "search_products",
      "arguments": {
        "query": "Packrift packaging supplies",
        "limit": 8
      }
    }
  },
  {
    "jsonrpc": "2.0",
    "id": "prepare-1066-unconfirmed-open_scout_shopping_agent",
    "method": "tools/call",
    "params": {
      "name": "prepare_purchase_handoff",
      "arguments": {
        "sku": "1066",
        "quantity": 1,
        "buyer_confirmed": false,
        "source_context": "ucp_builder_integration_pack",
        "mcp_source_context": "open_scout_shopping_agent",
        "mcp_install_target": "generic_streamable_http"
      }
    }
  }
]

Unconfirmed handoff

{
  "sku": "1066",
  "quantity": 1,
  "buyer_confirmed": false,
  "source_context": "ucp_builder_integration_pack",
  "mcp_source_context": "open_scout_shopping_agent",
  "mcp_install_target": "generic_streamable_http"
}

Buyer-confirmed handoff template

{
  "sku": "{buyer_selected_exact_sku}",
  "quantity": "{buyer_selected_quantity}",
  "buyer_confirmed": true,
  "source_context": "ucp_builder_integration_pack",
  "mcp_source_context": "open_scout_shopping_agent",
  "mcp_install_target": "generic_streamable_http"
}