{"type":"firestarter.listing","listing":{"id":"lst_K8NHKwHM","product_name":"Black Knee Warmers","category":"Warmers","description":"Overview:\nHere at the Black Bibs we’re firm believers in knee warmers. Protecting your knees from the cold is as important as keeping your core warm. It can prevent long-term injury as well as make the ride much more comfortable. Our knee warmers are made from brushed fleecy thermal compression fabric and are shaped to be comfortable around the knee (ie they’re not just straight tubes). The top and bottom both have silicone grippers to hold them in place.\nFit:\nSizing should be based on male bibs size. We recommend that women order a size smaller than bibs size. As always please contact us with fit questions.\nLengths:\n2XL: 19\"   XL: 18\"    L: 17\"    M: 16\"    S: 15 1/2\"   ","images":["https://cdn.shopify.com/s/files/1/0486/8548/2147/products/20200921_TheBlackBibs_069.jpg?v=1737750540","https://cdn.shopify.com/s/files/1/0486/8548/2147/products/kneewarmersn.jpg?v=1737750540"],"price":25,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:42.320Z"},"share_url":"https://firestarter.network/l/lst_K8NHKwHM","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_K8NHKwHM' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Black Knee Warmers' and a budget_max comfortably above $25.00 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."]}}