{"type":"firestarter.listing","listing":{"id":"lst_zNXNrfjl","product_name":"Water-Soluble Pencil HB","category":"Pencil","description":"Faber-Castell Graphite Aquarelle HBWater-Soluble PencilWood from certified sustainable forestryMade in Germany\nA watercolor essential.  This pencil is perfect for sketching out your foundational drawing.  The harder graphite keeps the lines light, and the water-solubility means that the lines will begin to disappear as you paint (unlike traditional pencil lines which can remain stubbornly visible, even in a finished painting).  Keep in mind that if you press hard with this pencil, it will likely still be visible if only covered in a light wash.  It is still best to use a light touch!\n \n© Greenleaf & Blueberry 2020www.greenleafblueberry.com","images":["https://cdn.shopify.com/s/files/1/1696/5931/products/IMG_2404.jpg?v=1601742316","https://cdn.shopify.com/s/files/1/1696/5931/products/IMG_2405.jpg?v=1601742316","https://cdn.shopify.com/s/files/1/1696/5931/products/IMG_2406.jpg?v=1601742316"],"price":2.75,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:24.620Z","product_rating":null,"product_rating_count":0,"seller_rating":null,"seller_rating_count":0,"units_sold":0,"reviews":{"count":0,"top":[]},"videos":[]},"share_url":"https://firestarter.network/l/lst_zNXNrfjl","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 ","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_zNXNrfjl' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Water-Soluble Pencil HB' and a budget_max comfortably above $2.75 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."]}}