{"type":"firestarter.listing","listing":{"id":"lst_p0QNiE0D","product_name":"Perfumer H Rhubarb Jam","category":"Jams & Jellies","description":"This handcrafted rhubarb jam captures the seasonal charm and vivid tang of British rhubarb. Made using stems from a single grower in Wakefield, part of the famous Yorkshire Rhubarb Triangle, it boasts outrageously pink color and delicate flavor during the forced winter season, and a sharper, more vibrant taste from the outdoor spring variety. A hint of bergamot adds the distinctive Perfumer H twist, creating a bright, nuanced preserve.","images":["https://cdn.shopify.com/s/files/1/0720/5824/1345/files/Rhubarb.jpg?v=1776807752"],"price":30,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T16:16:26.452Z"},"share_url":"https://firestarter.network/l/lst_p0QNiE0D","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_p0QNiE0D' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Perfumer H Rhubarb Jam' and a budget_max comfortably above $30.00 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."]}}