{"type":"firestarter.listing","listing":{"id":"lst_GdGPE4_I","product_name":"Lumos Duo Metals: The Forever Fineliner Set","category":"product","description":"Brass, bronze or stainless steel – each version of the Lumos Metals range is precision engineered to last (and be loved) for life.\nIt has the same interchangeable tip system as the original Lumos, just with more weight and presence in the hand. If you love tools that feel considered and built to endure, this is a natural step up.\nWhat’s included:\n\nLumos Duo (with reservoirs and Creative Tip Set)\nSold Brass Pen Rest\nFountain Pen Ink - No. 60 Pigment Black\n\nBotanical Mini Ink Collection (set of 6)\n\nSpare Ink Reservoirs (pack of 3)\n\nLumos 0.3 Writing Tips (pack of 3)\n\nSwitching to infinitely refillable pens has never been easier – and you’ll save 30% compared to buying individually.","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Bundles_LumosMetals.jpg?v=1777473122","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/LumosMetals_WEB_BronzeDuo.jpg?v=1772122699","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/LumosMetals_WEB_BrassDuo.jpg?v=1774348191","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-pro-duo-stainless-steel.jpg?v=1772122699","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/solid-brass-pen-rest-with-lumos-pen.jpg?v=1772122699","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/fountain-pen-ink-pigment-black-packaging-bottle-swatch.jpg?v=1772122699","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BOTANICALBox_swatch.jpg?v=1772122699","https://cdn.shopify.com/s/files/1/0089/6129/4417/products/Ink_Reservoir_Wren_LS_SQ.jpg?v=1772122699","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-0.3-writing.png?v=1772122699","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-tip-lines.jpg?v=1774603901"],"price":184,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.479Z"},"share_url":"https://firestarter.network/l/lst_GdGPE4_I","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_GdGPE4_I' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Lumos Duo Metals: The Forever Fineliner Set' and a budget_max comfortably above $184.00 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."]}}