{"type":"firestarter.listing","listing":{"id":"lst_RfnGrGtg","product_name":"Core Skull Shirt - Gray","category":"T-Shirts & Tops","description":"The Gymreapers Core Skull Shirt is made for those who demand ultimate comfort with minimal design. Featuring the Gymreapers signature skull on the upper left chest, this premium cotton shirt provides the perfect fit without restriction.\nWhether you're training or taking a rest day, the Core Skull Shirt provides unrestricted arm movement and accentuates your physique perfectly. Start elevating your comfort and training.","images":["https://cdn.shopify.com/s/files/1/0752/5585/files/core-shirt-gray-skull-front.jpg?v=1714585573","https://cdn.shopify.com/s/files/1/0752/5585/files/core-shirt-gray-back.jpg?v=1714585589","https://cdn.shopify.com/s/files/1/0752/5585/files/core-shirt-gray-skull-detail.jpg?v=1714585606","https://cdn.shopify.com/s/files/1/0752/5585/files/BasicTeeSizeChartErrorFix_1_d6fb4492-b432-4162-a067-dd2b855d0c34.jpg?v=1749486094"],"price":30,"currency":"USD","in_stock":true,"inventory_qty":69993,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:03.398Z"},"share_url":"https://firestarter.network/l/lst_RfnGrGtg","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_RfnGrGtg' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Core Skull Shirt - Gray' and a budget_max comfortably above $30.00 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."]}}