{"type":"firestarter.listing","listing":{"id":"lst_SqCyll9g","product_name":"Heavyweight Sweatshirt | Marine","category":null,"description":"Cut, sewn, and garment-dyed in the USA, our new Heavyweight Sweatshirts bring back the feel of vintage athletic wear: thick, sturdy, and made to last for decades. The cotton fleece traps warmth like the old ones did, with a soft brushed interior and dense outer knit that holds its shape. ","images":["https://cdn.shopify.com/s/files/1/2006/8681/files/YI2A1340_fac64cb8-eb45-4fc3-a1d8-8e66f7e0f69c.png?v=1765308530","https://cdn.shopify.com/s/files/1/2006/8681/files/YI2A1337_67cf35d1-fcfe-4998-9183-d2633f85a6c2.png?v=1765308581"],"price":145,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:09.695Z"},"share_url":"https://firestarter.network/l/lst_SqCyll9g","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_SqCyll9g' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Heavyweight Sweatshirt | Marine' and a budget_max comfortably above $145.00 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."]}}