{"type":"firestarter.listing","listing":{"id":"lst_RTTYYsY4","product_name":"Brass Wren: The Elevated Everyday Set","category":"product","description":"Brass has a special place in the Tom’s Studio story. It’s one of the materials Tom worked with from the very beginning – drawn to its warmth in the hand, reassuring weight and the beautiful patina it develops over time.\nThe Brass Wren takes everything people love about our best-selling, award-winning everyday writing pen and gives it added presence. It’s the same beautifully balanced, infinitely refillable Wren – crafted in solid brass.\nWhat’s included:\n\nBrass Wren (with reservoir and tip)\nSolid Brass Pen Rest\nFountain Pen Ink - No. 60 Pigment Black\n\nSwitching to infinitely refillable pens has never been easier – and you’ll save 25% compared to buying individually.\n ","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BUNDLE_Brass.jpg?v=1774352033","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BrassWren_1.jpg?v=1772120483","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/brass-wren-2.jpg?v=1772120483","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/brass-wren-4.jpg?v=1772120483","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/brass-wren-3.jpg?v=1772120483","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/brass-wren-5.jpg?v=1772120483","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/solid-brass-pen-rest-2.jpg?v=1772120483","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/fountain-pen-ink-pigment-black-packaging-bottle-swatch.jpg?v=1772122699"],"price":110,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.494Z"},"share_url":"https://firestarter.network/l/lst_RTTYYsY4","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_RTTYYsY4' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Brass Wren: The Elevated Everyday Set' and a budget_max comfortably above $110.00 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."]}}