{"type":"firestarter.listing","listing":{"id":"lst_3Y5-wv9h","product_name":"Tributary T-Shirt","category":"Merchandise","description":"Here in the Driftless, our waterways are born of trickles in bedrock. Then they converge and converge until they're big enough to shape the landscape. The Tributary T-Shirt celebrates the life-giving water we love around here.  \nMade and printed in the USA. 6.5oz garment dyed, 100% cotton.\n ","images":["https://cdn.shopify.com/s/files/1/1348/5769/files/Tributary-T-back_b5348015-aaed-4c49-8d58-7e1c53ff0330.png?v=1737644184","https://cdn.shopify.com/s/files/1/1348/5769/files/Tributary-T.png?v=1737644184","https://cdn.shopify.com/s/files/1/1348/5769/files/Tributary_T_Lifestyle_2.jpg?v=1737644184","https://cdn.shopify.com/s/files/1/1348/5769/files/Tributary_T_Lifestyle_1.jpg?v=1737644184"],"price":36,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:14.867Z"},"share_url":"https://firestarter.network/l/lst_3Y5-wv9h","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_3Y5-wv9h' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Tributary T-Shirt' and a budget_max comfortably above $36.00 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."]}}