{"type":"firestarter.listing","listing":{"id":"lst_11NTx4vc","product_name":"Blackwing - Pearl (Set of 12)","category":"PENCIL","description":"The Blackwing Pearl features a pearl white finish, gold imprint, white eraser, and a balanced and smooth graphite core that is softer than the graphite found in the Blackwing 602, but firmer than the graphite found in the Blackwing. Every Blackwing Pearl pencil features the iconic square Blackwing ferrule. Blackwing Pearl pencils come in packs of 12.\nFeatures\n\nIconic ferrule design\nThick, matte black finish and crisp, gold imprint\nCedar casing that sharpens evenly and easily\nSpecially formulated graphite that writes smoothly\n\nMaterials\n\nGenuine Incense-cedar\nJapanese graphite\nAluminum ferrule\n\nMADE IN JAPAN","images":["https://cdn.shopify.com/s/files/1/1058/3278/files/Edited_Products-36.jpg?v=1738087636","https://cdn.shopify.com/s/files/1/1058/3278/files/Edited_Products-35.jpg?v=1738087636"],"price":32,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:43:32.052Z"},"share_url":"https://firestarter.network/l/lst_11NTx4vc","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_11NTx4vc' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Blackwing - Pearl (Set of 12)' and a budget_max comfortably above $32.00 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."]}}