{"type":"firestarter.listing","listing":{"id":"lst_JR5kGb4b","product_name":"1.50ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut ID, IGI Certified)","category":"diamond","description":"\n    Type: Lab Grown Diamond\nShape: Round\nCarat: 1.50\nColour: H\nClarity: VVS2\nCut: Ideal\nPolish: Excellent\nSymmetry: Excellent\nFluorescence: None\nMeasurements: 7.3x7.37x4.45mm\nL/W Ratio: 0.99\nTable: 59%\nDepth: 60.6%\nCertificate: IGI\nCertificate Number: LG758577767\nCertificate PDF: View\n\n  ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/1.50ct_Round_Lab_Grown_Diamond_Colour_H_Clarity_VVS2_Cut_ID_IGI_Certified.webp?v=1783823039"],"price":758,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-12T04:30:52.446Z"},"share_url":"https://firestarter.network/l/lst_JR5kGb4b","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_JR5kGb4b' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 1.50ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut ID, IGI Certified)' and a budget_max comfortably above $758.00 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."]}}