{"type":"firestarter.listing","listing":{"id":"lst_2MdRKFVe","product_name":"Da Vinci Cosmotop Spin Watercolor Brush Flat, Series 5880","category":"Brushes","description":"Da Vinci Watercolor Brush Flat - Various SizesCosmotop SpinSizes 2, 6, 8, 10Made in Germany\n \nThe da Vinci Cosmotop Spin Rounds are my go-to workhorse brush, and have been for years.  They have an excellent snap that offers wonderful control and crisp details.  If you take care of these, they will last you for years.  The Cosmotop Spin line is made with synthetic fibers of five different diameters, which makes water absorption very efficient.  \nFlats are great for broad strokes, rectangular edges, and filling in wider strokes of color.\nTip: To extend the life of any paintbrush, use a pocket mister to spray down your watercolor pans a few minutes before you dive in and begin using them.  This saves your brush bristles from the extra fatigue and wear-and-tear of re-wetting each color.\nBrush Care:  After use, simply rinse your watercolor brushes in clean water, reshape the point with your fingers and, if possible, lay them horizontally with heads off the edge of your surface to dry completely.  Avoid storing wet brushes in any kind of sealed container to prevent mold or degradation of the glue at the base of the bristles.\n ","images":["https://cdn.shopify.com/s/files/1/1696/5931/products/IMG_3741.jpg?v=1636757780","https://cdn.shopify.com/s/files/1/1696/5931/products/IMG_3742.jpg?v=1636757780","https://cdn.shopify.com/s/files/1/1696/5931/products/IMG_3743.jpg?v=1636757780"],"price":6.75,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:23.287Z","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_2MdRKFVe","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_2MdRKFVe' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Da Vinci Cosmotop Spin Watercolor Brush Flat, Series 5880' and a budget_max comfortably above $6.75 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."]}}