{"type":"firestarter.listing","listing":{"id":"lst_6g7R4V1h","product_name":"Lug Sole Derby ~ Snuff Waxy Suede","category":"Footwear","description":"The Lug Sole Derby is a custom makeup for 3sixteen by Sanders &amp; Sanders, a heritage shoemaker based in the UK for over 150 years. This classic derby silhouette is the perfect daily wear shoe with its generous width and rugged commando sole. For this release, we chose a supple suede that has a slightly waxy hand to it which will darken over time with wear. Of the many shoes we've offered over the years, these Sanders Derbies have had the easiest break-in period and are an absolute pleasure to wear. Each pair is bench made in Sanders' Northampton factory. \nCARE: The waxy suede makes for easy upkeep. Dirt and dust can be easily brushed off.\nSIZING: Please note that Sanders utilizes UK sizing; as such we recommend taking one size down from your usual sneaker size. \n!split!\n!details!\n\nWaxy suede upper\nGoodyear welted\nCommando sole \nWaxed cord laces\nMade in England\n\n!split!\n!measurements!\nSIZING: Please note that Sanders utilizes UK sizing; as such we recommend taking one size down from your usual sneaker size. ","images":["https://cdn.shopify.com/s/files/1/0028/6132/files/3S-03MAR26_3SxSANDERS_SUEDE_DERBY_SIDE.jpg?v=1773930539","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-03MAR26_3SxSANDERS_SUEDE_DERBY_ANGLE.jpg?v=1773930539","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-03MAR26_3SxSANDERS_SUEDE_DERBY_BACK.jpg?v=1773930539","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-03MAR26_3SxSANDERS_SUEDE_DERBY_D.jpg?v=1773930539","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-03MAR26_3SxSANDERS_SUEDE_DERBY_TOP.jpg?v=1773930517"],"price":460,"currency":"USD","in_stock":true,"inventory_qty":109989,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:17.759Z"},"share_url":"https://firestarter.network/l/lst_6g7R4V1h","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_6g7R4V1h' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Lug Sole Derby ~ Snuff Waxy Suede' and a budget_max comfortably above $460.00 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."]}}