{"type":"firestarter.listing","listing":{"id":"lst_MkLa9YB-","product_name":"Powerbuilt Standard Ignition  Spark Plug Guage - 648522","category":"Gauges","description":"For measuring and adjusting spark plug gaps. 6 wireloop blades include: 0.025, 0.030, 0.034, 0.035, 0.040,0.045. Tool includes 2 electrode adjusting tools.","images":["https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648522-01.jpg?v=1723124124","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648522-02.jpg?v=1723124124","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648522-03.jpg?v=1723124124","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648522-04.jpg?v=1723124124"],"price":10.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:27:13.295Z"},"share_url":"https://firestarter.network/l/lst_MkLa9YB-","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_MkLa9YB-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Powerbuilt Standard Ignition  Spark Plug Guage - 648522' and a budget_max comfortably above $10.95 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."]}}