{"type":"firestarter.listing","listing":{"id":"lst_i_BRmCCw","product_name":"Gravgear - Grav weight vest 28lb","category":"Weight Vests","description":"\n\nAdjustable weight blocks: Train progressively to build more muscle and burn more fat across cardio and strength.\n\nSecure pocket design: Ensure no bouncing or shifting to improve focus and perform better in running and strength.\n\nDurable, odor-resistant fabric: Resist odors and irritation to keep training hygienic during runs and cardio sessions.\n\nWide movement compatibility: Support cardio, calisthenics, gymnastics, and street workout to improve athletic skills.\n\nVersatile training tool: Provide added resistance to target cardio and strength days and build more muscle.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/best-weight-vest-singapore-12kg.jpg?v=1780597989","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/weighted-vest-gravgear-12kg.jpg?v=1780597990","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/stretching-with-grav-weight-vest-min.jpg?v=1780597989","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/grav-weight-vest-12kg-dimension-min.jpg?v=1780597989","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/weight-vest-12kg-whats-in-the-box-min.jpg?v=1780597990","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/grav-weight-vest-with-adjustable-straps-12kg.jpg?v=1780597989","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/grav-weighted-vest-with-padded-shoulders_bcecd9f9-d9f8-4c56-8d21-b79aab5322f4.jpg?v=1780597989","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/weighted-vest-velcro-strap-buckle-heavy-duty.jpg?v=1780597990","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/image_275f3ec0-dfe2-4def-9526-0e15a1e4eae9.jpg?v=1780597989","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG_0642.jpg?v=1780597989"],"price":164.9,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:03.214Z"},"share_url":"https://firestarter.network/l/lst_i_BRmCCw","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_i_BRmCCw' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Gravgear - Grav weight vest 28lb' and a budget_max comfortably above $164.90 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."]}}