{"type":"firestarter.listing","listing":{"id":"lst_QqOCZwgU","product_name":"NYXL HD Extended Range Singles","category":"D'Addario","description":"NYXL High-Density strings blend our proprietary NY Steel technology, NYXL's reformulated nickel plated steel wrap wire, and high-density metals to deliver optimized tension, improved intonation, and better note clarity for extended range and drop tunings, all while staying true to NYXLs promise of better tuning stability, greater break resistance, and more focused mids. These NYXL HD premium single strings are available for 7, 8 and 9-string guitars accommodating instruments up to 28\"\" or up to 30\"\" (SL) scale lengths.","images":["https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD9_main_transparent_web.png?v=1783433771","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD9SL_main_transparent_web_9093f3ca-8c21-4a23-983c-1ed6342f0169.png?v=1783449125","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD8SL_main_transparent_web_640feb63-7cf3-48ca-9ebc-724565a540f6.png?v=1783437008","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD7SL_main_transparent_web_650d9ea9-3b50-46ca-8cc5-c39fb222338a.png?v=1783448229","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD7_main_transparent_web.png?v=1783433695","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD7_detail1_transparent_web.png?v=1783433698","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD8SL_detail1_transparent_web_5389a8ea-c22f-4c25-90c2-5417e70a7072.png?v=1783437011","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD7SL_detail1_transparent_web_58ccb23f-784b-4259-8a5d-02646dc0190b.png?v=1783448232","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD9SL_detail1_transparent_web_3dbcaa31-3242-4c59-b7d6-49db5f3edb23.png?v=1783449123","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD8_main_transparent_web_6c5b550a-5566-4e84-a563-4175104cb1a8.png?v=1783529340","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ds_NYHD9_main_transparent_web_e0bf96ae-6e70-423e-ad6a-0953781578f2.png?v=1783529409"],"price":14.99,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-07-07T19:30:24.442Z","product_rating":null,"product_rating_count":0,"seller_rating":null,"seller_rating_count":0,"units_sold":0,"reviews":{"count":0,"top":[]},"videos":[]},"share_url":"https://firestarter.network/l/lst_QqOCZwgU","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_QqOCZwgU' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy NYXL HD Extended Range Singles' and a budget_max comfortably above $14.99 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."]}}