{"type":"firestarter.listing","listing":{"id":"lst_kY7f9keS","product_name":"Masakage Koishi — Aogami Super Gyuto 240 mm","category":"Gyuto Knife","description":"Masakage Koishi Stainless Clad Aogami Super Kurouchi Tsuchime 240mm Gyuto\nThe Masakage Koishi 240mm Gyuto is the go-to choice for knife enthusiasts seeking a balance between performance and craftsmanship. With a blade length just under 10 inches, it's perfect for tackling large ingredients like heads of lettuce, while maintaining the finesse required for mincing onions or delicate herbs.\nHandcrafted in Echizen, Japan, this gyuto features Aogami Super Steel, hardened to an impressive 63-65 Rockwell. The steel composition ensures it takes a razor-sharp edge and holds that edge far longer than most knives. The blade’s gently sloping belly makes it ideal for both chopping and rocking techniques, offering versatility in any kitchen setting.\nThe striking Kurouchi finish adds a rustic aesthetic that sets the knife apart from polished competitors, while the hammer-forged tsuchime texture further enhances its traditional craftsmanship. Paired with an elegant cherry wood octagonal wa handle and a black pakka wood ferrule, the Koishi Gyuto is a stunning fusion of function and form.\nThis knife is hand engraved, showcasing the artistry of master Japanese blacksmiths, and its well-balanced, lightweight design ensures comfort during extended use. Whether you're a professional or an enthusiast, the Masakage Koishi 240mm Gyuto delivers unparalleled cutting performance with a distinct, eye-catching design.\nSpecifications:\n\n\nBrand: Masakage\n\nLine: Koishi\n\nLocation: Echizen, Japan\n\nConstruction: Hammer Forged, San Mai\n\nFinish: Kurouchi\n\nEdge Steel: Aogami Super\n\nHandle: Cherry Octagonal\n\nFerrule: Black Pakka Wood\n\nEngraving: Hand Engraved\n\nEdge Grind: Even\n\nWeight: 6.7 oz (190 g)\n\nEdge Length: 246 mm\n\nTotal Length: 403 mm\n\nSpine Thickness at Heel: 3.4 mm\n\nBlade Height: 52.0 mm\n\n","images":["https://cdn.shopify.com/s/files/1/0602/6720/0736/files/masakage-koishi-gyuto-240mm-angle-front_a5feb63b-0884-4d38-8957-f9a06d371a90.jpg?v=1780765971","https://cdn.shopify.com/s/files/1/0602/6720/0736/files/masakage-koishi-gyuto-240mm-angle-back_3b764cc5-1bd4-4a25-af1b-8a768fac6aa5.jpg?v=1780765970","https://cdn.shopify.com/s/files/1/0602/6720/0736/files/masakage-koishi-gyuto-240mm-profile_6493a837-fdd9-4fb5-b22c-b19db0bc14bc.jpg?v=1780765970","https://cdn.shopify.com/s/files/1/0602/6720/0736/files/masakage-koishi-gyuto-240mm-spine_3769bc73-122e-4693-9ec5-367aa5d3d2ec.jpg?v=1780765971"],"price":449,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:44:30.756Z"},"share_url":"https://firestarter.network/l/lst_kY7f9keS","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_kY7f9keS' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Masakage Koishi — Aogami Super Gyuto 240 mm' and a budget_max comfortably above $449.00 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."]}}