{"type":"firestarter.listing","listing":{"id":"lst_TtrZVVjt","product_name":"Niwaki Twin Diamond File","category":"Tool Sharpeners","description":"\n  A compact, double-sided file designed for restoring and reshaping blades that\n  need more than a simple touch-up. Featuring a coarse (#120) side and a medium\n  (#300) side, it’s ideal for reviving old, worn tools with chips, nicks, or\n  years of hard use.\n\n\n  This is an essential tool for hand reconditioning—perfect for establishing a\n  fresh edge or preparing a blade before refining it further with a whetstone.\n  The coarse side efficiently removes damage, while the finer side begins the\n  smoothing and reshaping process ahead of honing.\n\n\n  Designed to be used dry, the file is compact enough to fit comfortably in hand\n  or pocket, making it practical both in the workshop and out in the garden.\n","images":["https://cdn.shopify.com/s/files/1/0720/5824/1345/files/diamond-file.jpg?v=1749046453"],"price":38,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:21.422Z"},"share_url":"https://firestarter.network/l/lst_TtrZVVjt","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_TtrZVVjt' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Niwaki Twin Diamond File' and a budget_max comfortably above $38.00 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."]}}