{"type":"firestarter.listing","listing":{"id":"lst_WLNgsXDj","product_name":"JerkFit - Nubs (Pair) Thumb and Finger Sleeves for the Hook Grip","category":"Hand Grips","description":"\n\nHook-grip thumb covers: Provide padded protection from barbell knurling to keep thumbs secure during heavy pulls.\n\nLatex-free elastic material: Deliver a snug fit to reduce friction and improve grip on barbells during cleans and snatches.\n\nChalk and sweat absorbent: Keep thumbs dry and ensure reliable grip through long WODs, pulls, and barbell cycling.\n\nMade in the USA: Provide durable, machine-washable sleeves that withstand repeated WODs and keep sweat and odor in check.\n\nThree sizes by knuckle width: Ensure a precise fit: S 0 mm - 20 mm, M 20 mm - 25 mm, L 25 mm+, women size down, men size up.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/AMZN_Nubs_MAIN_prog02.jpg?v=1780581971","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Nubs0101_prog01.jpg?v=1780581971","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/NubsColored.jpg?v=1780581971","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Nubs05_prog01.jpg?v=1780581971","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Nubs03_prog01.jpg?v=1780581971","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Nubs02_prog01.jpg?v=1780581971","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Nubs04_prog01.jpg?v=1780581971","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/nubs-size-chart_791b6537-c6b5-409b-95e3-c10bacc81955.png?v=1780581971"],"price":11.95,"currency":"USD","in_stock":true,"inventory_qty":179982,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:51.592Z"},"share_url":"https://firestarter.network/l/lst_WLNgsXDj","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_WLNgsXDj' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy JerkFit - Nubs (Pair) Thumb and Finger Sleeves for the Hook Grip' and a budget_max comfortably above $11.95 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."]}}