{"type":"firestarter.listing","listing":{"id":"lst_WekU9X-Q","product_name":"Vintage Tiffany & Co. Penguin Brooch","category":"Collar Pins","description":"Vintage 'Emperor penguin' figure posed in retrospect\n'Penguin' brooch setting measures 29mm long and up to 15.5mm at widest point\nPin fastened with rolling clasp closure\nBrooch set in 18k solid yellow gold\nMociun Found Note: Tiffany & Co. Signed. Circa 1990s.\n\nItem Details\nAntique or vintage items are final sale.","images":["https://cdn.shopify.com/s/files/1/0075/5004/2175/files/Antique_Vintage_CollarPins__Tiffany_Co.PenguinBrooch_01_OW052026-12210.jpg?v=1779307040","https://cdn.shopify.com/s/files/1/0075/5004/2175/files/Antique-_-Vintage_Collar-Pins__Vintage-Tiffany-_-Co.-Penguin-Brooch_02_OW052026-12210.jpg?v=1779820683","https://cdn.shopify.com/s/files/1/0075/5004/2175/files/Antique_Vintage_CollarPins__Tiffany_Co.PenguinBrooch_03_OW052026-12210.jpg?v=1779307040","https://cdn.shopify.com/s/files/1/0075/5004/2175/files/Antique-_-Vintage_Collar-Pins__Vintage-Tiffany-_-Co.-Penguin-Brooch_99sq_OW052026-12210.jpg?v=1779820683"],"price":5500,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:46.653Z"},"share_url":"https://firestarter.network/l/lst_WekU9X-Q","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 ","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_WekU9X-Q' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Vintage Tiffany & Co. Penguin Brooch' and a budget_max comfortably above $5500.00 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."]}}