{"type":"firestarter.listing","listing":{"id":"lst_4qkaS2HP","product_name":"Calligraphy Pen Black & Gold","category":"Calligraphy","description":"Black & Gold pairs a black base with a hand-finished splash of metallic gold – no two pens are ever quite the same.\nIt’s a finish inspired by the spontaneity of Tom’s early designs, when every experiment in the workshop became a new idea worth sharing. This time, we’ve extended that energy across the entire Tom’s Studio collection – from our calligraphy favourites to the Lumos, Wren and Mechanical Pencil.\nEach piece is crafted in small, limited edition batches, designed to be treasured for years, and a quiet reminder that even the most refined tools begin life with a little creative chaos.\nBloomA beautiful and balanced calligraphy pen designed with just the right amount of grip whilst feeling balanced in the hand. Enjoy full control and lightness of touch on your upstrokes.\nCarrotDesigned for those who like a compact pen holder and a lovely curved body for improved grip and stability. The weight increases stability and your nib, in turn, will glide across the page.\nFlourishThe best of both form and function. Feeling wonderful in the hand it's contoured body fits snuggly in the hand whilst giving you the perfect balance to write smoothly and precisely.","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BlackGold5.jpg?v=1762427519","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BlackGoldWeb_BloomObliqueBox.jpg?v=1762427557","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BlackGoldWeb_BloomStraightBox.jpg?v=1762427557","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BlackGoldWeb_CarrotBox.jpg?v=1762427557","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BlackGoldWeb_FlourishObBox.jpg?v=1762427557","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/BlackGoldWeb_FlourishStraightBox.jpg?v=1762427557"],"price":120,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.847Z"},"share_url":"https://firestarter.network/l/lst_4qkaS2HP","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 ","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_4qkaS2HP' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Calligraphy Pen Black & Gold' and a budget_max comfortably above $120.00 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."]}}