{"type":"firestarter.listing","listing":{"id":"lst_cGuK47X6","product_name":"Slate Green","category":null,"description":"A natural earth pigment that is lightfast and transparent with a fair amount of texture. Slate green is a natural stone chalk that has been ground down into a fine powder which we've found to have a lovely grittiness to it.\nAll of our watercolors are handmade in our shop using the highest quality earth and synthetic pigments, plus natural watercolor binding medium made from gum arabic (sap from acacia trees), honey, glycerine, distilled water, and a dash of clove oil for freshness!\nHalf Pans contain around 2ml of paint and are approximately 3/4\" x 1/2\" x 3/8\" deep.\nColor Index number not provided by vendor. All of our watercolors conform to ASTM D-4236.","images":["https://cdn.shopify.com/s/files/1/0631/2017/9426/products/slategreen.jpg?v=1666123238","https://cdn.shopify.com/s/files/1/0631/2017/9426/products/slategreensquare.jpg?v=1666123238","https://cdn.shopify.com/s/files/1/0631/2017/9426/files/Watercolor_Half_Pan_Trio.jpg?v=1773278386"],"price":12,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.959Z"},"share_url":"https://firestarter.network/l/lst_cGuK47X6","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_cGuK47X6' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Slate Green' and a budget_max comfortably above $12.00 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."]}}