{"type":"firestarter.listing","listing":{"id":"lst_A0uF-3cL","product_name":"1.33ct Marquise Natural Ruby (Colour Red, Clarity Slightly Included, Cut Faceted)","category":"gemstone","description":"\n    Type: Natural\nVariety: Ruby\nShape: Marquise\nCarat: 1.33\nColour: Red\nClarity: Slightly Included\nCut: Faceted\nTreatment: Heated\nOrigin: Mozambique\nMeasurements: 10.08x5.08x3.01mm\nCertificate: GSI\nCertificate Number: 55022610114\nCertificate PDF: View\n\n  ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/1.33ct_Marquise_Natural_Ruby_Colour_Red_Clarity_Slightly_Included_Cut_Faceted.webp?v=1783805130"],"price":3342,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-12T04:30:52.465Z"},"share_url":"https://firestarter.network/l/lst_A0uF-3cL","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_A0uF-3cL' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 1.33ct Marquise Natural Ruby (Colour Red, Clarity Slightly Included, Cut Faceted)' and a budget_max comfortably above $3342.00 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."]}}