{"type":"firestarter.listing","listing":{"id":"lst_xv7iDTSs","product_name":"Petite Martingale Lead (Nylon)","category":"Small Pet & Show","description":"This Leash and collar in one is designed for exercise, training, and show and field. A great alternative to the Slide and Loop Leads as the collar restricts tightening around your pet's neck. Overall length of lead is 48\".\nSizing Chart\n\nFine Weight:       1/8\" width\nMedium Weight: 1/4\" width\n","images":["https://cdn.shopify.com/s/files/1/1467/3912/products/457080.jpg?v=1718933320","https://cdn.shopify.com/s/files/1/1467/3912/products/457081.jpg?v=1718933320","https://cdn.shopify.com/s/files/1/1467/3912/products/457082.jpg?v=1718933320","https://cdn.shopify.com/s/files/1/1467/3912/products/457083.jpg?v=1577999485"],"price":11.49,"currency":"USD","in_stock":true,"inventory_qty":159984,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:26.498Z"},"share_url":"https://firestarter.network/l/lst_xv7iDTSs","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_xv7iDTSs' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Petite Martingale Lead (Nylon)' and a budget_max comfortably above $11.49 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}