{"type":"firestarter.listing","listing":{"id":"lst_O9S1ETzR","product_name":"Powerbuilt HEI Type Spark Plug Gap Gauge - 648397","category":"Gauges","description":"This compact, handy wire type spark plug gap gauge makes it quick and easy to accurately gap spark plugs for HEI and other type ignitions. It will set spark plug gaps from . 025\" thru .050\" (. 635mm thru 1.27mm). The tool includes a built-in electrode adjuster for added convenience","images":["https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648397-01.jpg?v=1777430217","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648397-02.jpg?v=1777430217","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648397-03.jpg?v=1777430217","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648397-04.jpg?v=1777430217","https://cdn.shopify.com/s/files/1/0443/2681/3852/files/648397-05.jpg?v=1777430217"],"price":10.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:27:14.390Z"},"share_url":"https://firestarter.network/l/lst_O9S1ETzR","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_O9S1ETzR' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Powerbuilt HEI Type Spark Plug Gap Gauge - 648397' 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."]}}