{"type":"firestarter.listing","listing":{"id":"lst_9GAnjrwE","product_name":"Lightweight Jersey Standard T-Shirt","category":"Apparel","description":"This lightweight short sleeve T-shirt from Reigning Champ is made from premium cotton with a fine handfeel and a durable, lasting fit. Cut in a standard athletic fit with balanced proportions. Designed with a durable rib-bound collar, set-in sleeves, and signature flatlock seams.\n\n100% Cotton\n\nStandard Fit\n\n\nSizing guide in inches:\n\n   \n\n\n\nS\nM\nL\nXL \n\nXXL\n\n\nShoulder width \n\n17.5\n17.9\n18.7\n19.5\n20.3\n\n\nChest width\n18.5\n20.5\n22\n23.4\n25\n\n\nBody length\n26.2\n28\n28.7\n29.5\n30.3\n\n\nSleeve length\n8.5\n9.4\n10\n10.4\n11\n\n\n","images":["https://cdn.shopify.com/s/files/1/0044/9802/files/zkK4DHZ0SLmQUWTwa3Y8-g_RC-1539_White.jpg?v=1775232729","https://cdn.shopify.com/s/files/1/0044/9802/files/m-pg73rZSiuGy9U73IdIcg_RC-1539_Black.jpg?v=1775232729","https://cdn.shopify.com/s/files/1/0044/9802/files/3vAYrkMnSG2t3o-bz2aMrg_RC-1539_Hgrey.jpg?v=1775232729"],"price":48,"currency":"USD","in_stock":true,"inventory_qty":139986,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:54.327Z"},"share_url":"https://firestarter.network/l/lst_9GAnjrwE","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_9GAnjrwE' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Lightweight Jersey Standard T-Shirt' and a budget_max comfortably above $48.00 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."]}}