{"type":"firestarter.listing","listing":{"id":"lst_BvZUq7nN","product_name":"KNKMiami - ShouldersBack Strap","category":"Braces & Supports","description":"\n\nPosture correction: Designed to improve posture and encourage proper body alignment through the shoulders and upper back.\n\nTrains your muscles: When worn, the strap helps train your muscles to hold the correct back placement over time.\n\nAdjustable fit: Adjusts from roughly 25 to 50 inches to fit a wide range of chest sizes.\n\nComfortable materials: Made from breathable neoprene fabric -- lightweight, washable, and latex-free.\n\nWear anywhere: Discreet enough to wear under clothing at home, at work, or during light activity.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/79B30E0F-9787-4D85-8EBC-BB833D518370.jpg?v=1780603568","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/K2.jpg?v=1780603568","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/K3.jpg?v=1780603568","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/K1.jpg?v=1780603570","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG_7043_2.jpg?v=1780603568"],"price":34.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:50.264Z"},"share_url":"https://firestarter.network/l/lst_BvZUq7nN","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_BvZUq7nN' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy KNKMiami - ShouldersBack Strap' and a budget_max comfortably above $34.99 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."]}}