{"type":"firestarter.listing","listing":{"id":"lst_eqWG_6n-","product_name":"Niwaki Sharpening Stone","category":"Tool Sharpeners","description":"These high-quality sharpening stones are specially designed for secateurs, but are equally effective on shears, topiary clippers, and other sharp garden tools. Available in three grit levels, they cover everything from routine maintenance to restoring heavily worn blades.\nThe underside of each stone is subtly concave to match the convex curve of secateur blades, helping you maintain the correct angle while sharpening. The flat surfaces are ideal for sharpening shears and removing burrs from the reverse side of the blade. Compact and easy to handle, they can also reach tighter areas along the blade edge.\nRegular use keeps tools performing at their best—sharper blades make cleaner cuts, reduce strain, and are safer and more satisfying to use.","images":["https://cdn.shopify.com/s/files/1/0720/5824/1345/files/sharpening-stones-1.jpg?v=1749045841","https://cdn.shopify.com/s/files/1/0720/5824/1345/files/sharpening-stones-220.jpg?v=1749045844","https://cdn.shopify.com/s/files/1/0720/5824/1345/files/sharpening-stones-1000.jpg?v=1749045844","https://cdn.shopify.com/s/files/1/0720/5824/1345/files/sharpening-stones-3000.jpg?v=1749045844"],"price":28,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:21.430Z"},"share_url":"https://firestarter.network/l/lst_eqWG_6n-","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_eqWG_6n-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Niwaki Sharpening Stone' and a budget_max comfortably above $28.00 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."]}}