{"type":"firestarter.listing","listing":{"id":"lst_5P5ZlwQ5","product_name":"GoFit - Pro Grade Power Tubes - Light, Medium, Heavy, Extra Heavy, Super Heavy","category":"Tube Bands","description":"\n\nFive resistance options (20–70 lb): Target chest, back, shoulders, and legs as you build progressive strength.\n\nHeavy duty Door Anchor: Expand exercise options to target core and back with stable, door-mounted positioning.\n\n48 in resting tube, 66.2 in in use (168 cm): Provide full range to train arms, shoulders, and glutes.\n\nPremium latex rubber, sure-grip handles: Deliver secure hold and withstand tough sessions to improve control.\n\nPro-grade tube, attached handles, Door Anchor, Manual: Set up fast and target chest, back, core, and legs at home or on the go.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-All_1600x1600_0922.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-L_1600x1600_2.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-L_1600x1600_3.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-M_1600x1600_4.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-M_1600x1600_3.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-H_1600x1600_2.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-H_1600x1600_3.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-XH_1600x1600_2.jpg?v=1780587033","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-XH_1600x1600_1.jpg?v=1780587033","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-SH_1600x1600_1.jpg?v=1780587034","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-4TUB-SH_1600x1600_2.jpg?v=1780587034"],"price":17.99,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:04.042Z"},"share_url":"https://firestarter.network/l/lst_5P5ZlwQ5","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_5P5ZlwQ5' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy GoFit - Pro Grade Power Tubes - Light, Medium, Heavy, Extra Heavy, Super Heavy' and a budget_max comfortably above $17.99 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."]}}