{"type":"firestarter.listing","listing":{"id":"lst_V7BUFz_m","product_name":"Custom NYXL Guitar String Sets","category":null,"description":"Engineered for exceptional durability and enhanced tuning stability, NYXL strings offer a bright, dynamic tone with superior resistance to breakage versus our standard sets. Perfect for players seeking premium performance, the NYXL set delivers a powerful, crisp sound that stays in tune longer, making it the ultimate choice for both studio and stage. Build your custom NYXL String set and play fearlessly now!.","images":["https://cdn.shopify.com/s/files/1/0669/6042/5025/files/DS_CUSTOMNYXL6_Main1_transparent_web.png?v=1773014079","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/DS_CUSTOMNYXL7_Main1_transparent_web.png?v=1773014080","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/DS_CUSTOMNYXL8_Main1_transparent_web.png?v=1773014080","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/DS_CUSTOMNYXL12_Main1a_transparent_web.png?v=1773014082","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/DS_CUSTOMNYXL9_Main1_transparent_web.png?v=1773014081"],"price":15,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.315Z"},"share_url":"https://firestarter.network/l/lst_V7BUFz_m","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_V7BUFz_m' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Custom NYXL Guitar String Sets' and a budget_max comfortably above $15.00 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."]}}