{"type":"firestarter.listing","listing":{"id":"lst_MR2VJdac","product_name":"Santiago Short Sleeve Shirt Arnold Sand","category":"Shirts-Spring Archive 26","description":"New for Summer 25, the Santiago shirt is crafted from a soft and textural 100% ecological linen. Featuring a soft spread collar and a squared off hem, this short-sleeve style is super versatile and a breeze to style with summer chinos or shorts.","images":["https://cdn.shopify.com/s/files/1/0272/3338/6538/files/OSMS188-ARN01SANFRONT.jpg?v=1746791046","https://cdn.shopify.com/s/files/1/0272/3338/6538/files/OSMS188-ARN01SANDETAIL1.jpg?v=1746791046","https://cdn.shopify.com/s/files/1/0272/3338/6538/files/OSMS188-ARN01SANDETAIL2.jpg?v=1746791046","https://cdn.shopify.com/s/files/1/0272/3338/6538/files/OSMS188-ARN01SANDETAIL3.jpg?v=1746791046"],"price":135,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:28.740Z"},"share_url":"https://firestarter.network/l/lst_MR2VJdac","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_MR2VJdac' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Santiago Short Sleeve Shirt Arnold Sand' and a budget_max comfortably above $135.00 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."]}}