{"type":"firestarter.listing","listing":{"id":"lst_za5KEhbv","product_name":"Green Wave Mustard","category":"Vegetables","description":"This frilly green mustard is a must for those with a pungent loving palette. Grow as a baby leaf to add kick to salads, or let grow to full size for fuller, thicker leaves. Mustard is a standard addition to braising greens mixes, but can also be enjoyed on its own with garlic, chili flakes, sesame oil and plenty of salt and freshly cracked pepper. Be sure to sow some for a fall harvest. Green Wave is hearty and incredible after the first fall frost.","images":["https://cdn.shopify.com/s/files/1/0072/0909/1117/products/IMG_0459_1.jpg?v=1735579937","https://cdn.shopify.com/s/files/1/0072/0909/1117/products/3ACA7193-5DCF-4FF0-BEBC-4BE3F738F6C7.jpg?v=1735579937","https://cdn.shopify.com/s/files/1/0072/0909/1117/products/Green-Wave-Mustard-vendor-unknown-1630676610.jpg?v=1735579938"],"price":4.99,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:39.448Z"},"share_url":"https://firestarter.network/l/lst_za5KEhbv","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_za5KEhbv' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Green Wave Mustard' and a budget_max comfortably above $4.99 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."]}}