{"type":"firestarter.listing","listing":{"id":"lst_RIEbJw0v","product_name":"CfM Riverbed","category":null,"description":"Inspired by Heidi Gustafson's beautiful reference catalog Book of Earth, this rich and layered mix of earth pigments reminds us of long summer days at the Yuba, running barefoot along the cool, muddy banks and watching the ebb and flow of silty sand beneath the water.\n\nCfM Ultra-Blends are custom colors with endless possibilities! Use them with just a bit of water for full, even saturation, or add more water (and a bit more!), let it all pool and dry undisturbed on your paper, and discover worlds upon magical worlds as the colors separate and settle out!\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 measure ~3/4\" x 1/2\" x 3/8\" and contain ~2ml of paint.\nOur custom blended colors don't have a Color Index number, as they consist of a unique blend of two or more pigments. All of our watercolors conform to ASTM D-4236.","images":["https://cdn.shopify.com/s/files/1/0631/2017/9426/files/Riverbed_New_Grey_2.jpg?v=1730744608","https://cdn.shopify.com/s/files/1/0631/2017/9426/files/Riverbed_New_Grey_52956ce9-3829-4ab7-8e2b-6ac38a34cd2a.jpg?v=1730744613","https://cdn.shopify.com/s/files/1/0631/2017/9426/files/RiverbedNew.jpg?v=1728415628","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":"2026-06-18T20:47:21.764Z"},"share_url":"https://firestarter.network/l/lst_RIEbJw0v","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_RIEbJw0v' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy CfM Riverbed' 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."]}}