{"type":"firestarter.listing","listing":{"id":"lst_HQZUo_15","product_name":"Mystery T","category":"Apparel","description":"Limit one (1) per order - All sales are final\nTrue surprises are rare these days. And sometimes it's just best not to know. So add some unknown to your order and pick up a Mystery T. We'll send you something brand new and awesome. Could be a t-shirt from the current collection. Could be a design that's been out of print for a while. Could be your new favorite shirt. Could be something that you immediately gift to someone else. (T-shirts also make excellent chain rags.) Do whatever you want with it!\nFINELY PRINTED T-SHIRTS• Limit one per order• 100% Cotton or 50/50 Cotton/Poly• All sales on these shirts are final• No returns or exchanges","images":["https://cdn.shopify.com/s/files/1/0883/2790/products/MysteryT.jpg?v=1584644050","https://cdn.shopify.com/s/files/1/0883/2790/products/MENS-SizingChart_c194be99-eae2-4726-927d-940f14066e3e.jpg?v=1584644056"],"price":11.96,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:40.925Z"},"share_url":"https://firestarter.network/l/lst_HQZUo_15","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_HQZUo_15' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Mystery T' and a budget_max comfortably above $11.96 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."]}}