{"type":"firestarter.listing","listing":{"id":"lst_VhTksfkV","product_name":"Original Flourish - Straight Calligraphy Pen","category":"Calligraphy","description":"A little Ninja of a calligraphy tool... So many pens are made from cheap materials that look good but don't stand the test of time. I wanted to make a pen that did both. The Original Flourish straight pen is machined from Solid Aluminium using lathes conventionally used to make watch parts (the long-lasting bit, no plastic here). They have a silky matte black finish which sings quality and craft – it not only looks beautiful but is designed to be the best tool for the job. Each pen is also fitted with a stainless steel ferrule (not a speck of rust in sight!).\nIt's my hope that you'll be passing your pen down the generations, and that your grandchildren will get the same pleasure from using their Tom's Studio pen as you do.","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/products/black-flourish-straight-464605.jpg?v=1769171520","https://cdn.shopify.com/s/files/1/0089/6129/4417/products/original-flourish-straight-calligraphy-pen-on-pen-rest.jpg?v=1769171520","https://cdn.shopify.com/s/files/1/0089/6129/4417/products/original-flourish-straight-calligraphy-pen-3.png?v=1769171520","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/original-flourish-straight-calligraphy-pen.jpg?v=1769171520"],"price":45,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:23.785Z"},"share_url":"https://firestarter.network/l/lst_VhTksfkV","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_VhTksfkV' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Original Flourish - Straight Calligraphy Pen' and a budget_max comfortably above $45.00 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."]}}