{"type":"firestarter.listing","listing":{"id":"lst_1yMhhcMJ","product_name":"Sternum Strap","category":"Accessories","description":"This is a replacement sternum strap that can be attached and adjusted using the tri glides at either end. The buckle has a whistle incorporated into it. \nIt will fit any of our models of backpack, and any other pack that uses 15mm webbing\n \nCheck out our fitting guide here","images":["https://cdn.shopify.com/s/files/1/0275/4317/5261/files/Sturnum_strap_whistle_2025.jpg?v=1749808947","https://cdn.shopify.com/s/files/1/0275/4317/5261/files/Sturnum_strap_whistle_2025-4.jpg?v=1749808947","https://cdn.shopify.com/s/files/1/0275/4317/5261/files/Sturnum_strap_whistle_2025-2.jpg?v=1749808926","https://cdn.shopify.com/s/files/1/0275/4317/5261/files/Sturnum_strap_whistle_2025-3.jpg?v=1749808926"],"price":14,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:46.711Z"},"share_url":"https://firestarter.network/l/lst_1yMhhcMJ","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_1yMhhcMJ' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Sternum Strap' and a budget_max comfortably above $14.00 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."]}}