{"type":"firestarter.listing","listing":{"id":"lst_enxyAHqJ","product_name":"Squat Harness - Aluminum Handles (Pair)","category":"D-Handles","description":"\n\nAircraft-grade aluminum with steel-reinforced anchor points: 500 lb rating per pair — substantial safety margin above typical training loads with the quality of materials to back it up.\n\nTwo attachment methods for different exercises: Wrap method (loop around barbell, pull-up bar, or thick band via D-ring and carabiner) for large-diameter bars; direct carabiner clip for cable machine pulleys (adds approximately 10 inches of handle extension).\n\n1-inch padded grip: Distributes pressure more evenly across the palm than bare metal or hard rubber D-handles — reduces grip fatigue and callusing during high-volume pulling work.\n\nSold as a pair: Two handles — use unilaterally for single-arm exercises or bilaterally via the Pairing Strap (sold separately) for bilateral cable movements from a single pulley.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG-4627.png?v=1780603571"],"price":59,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:55.595Z"},"share_url":"https://firestarter.network/l/lst_enxyAHqJ","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_enxyAHqJ' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Squat Harness - Aluminum Handles (Pair)' and a budget_max comfortably above $59.00 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."]}}