{"type":"firestarter.listing","listing":{"id":"lst_JsYh9Vhx","product_name":"1.33ct Oval Lab Grown Diamond (Colour Fancy Vivid Blue, Clarity VS1, Uncertified)","category":"diamond","description":"\n    Type: Lab Grown Diamond\nShape: Oval\nCarat: 1.33\nColour: Blue\nIntensity: Fancy Vivid\nClarity: VS1\nPolish: Very Good\nSymmetry: Very Good\nFluorescence: None\nMeasurements: 8.71x5.81x3.43mm\nL/W Ratio: 1.5\nTable: 68%\nDepth: 59.1%\nCertificate: Uncertified\nCertificate Number: 4D875559C2\n  ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/1.33ct_Oval_Lab_Grown_Diamond_Colour_Fancy_Vivid_Blue_Clarity_VS1_Uncertified.webp?v=1783439827"],"price":835,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-07T23:45:50.319Z"},"share_url":"https://firestarter.network/l/lst_JsYh9Vhx","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_JsYh9Vhx' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 1.33ct Oval Lab Grown Diamond (Colour Fancy Vivid Blue, Clarity VS1, Uncertified)' and a budget_max comfortably above $835.00 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."]}}