{"type":"firestarter.listing","listing":{"id":"lst_fXWB_k3k","product_name":"Square Gray Diamond Ring","category":"Rings","description":"This lovely ring features a sparkling rose cut gray diamond, accented with two tiny white diamonds. The rose cut diamond is wrapped in 22k gold, with an 18k gold back and 1.3 mm hammered band. Matte finish.","images":["https://cdn.shopify.com/s/files/1/1479/9532/files/230412_AnandaKhalsa-044_1200.jpg?v=1757375485","https://cdn.shopify.com/s/files/1/1479/9532/files/230412_AnandaKhalsa-043_1200.jpg?v=1757375485"],"price":1805,"currency":"USD","in_stock":true,"inventory_qty":149985,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:27.969Z"},"share_url":"https://firestarter.network/l/lst_fXWB_k3k","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_fXWB_k3k' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Square Gray Diamond Ring' and a budget_max comfortably above $1805.00 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."]}}