{"type":"firestarter.listing","listing":{"id":"lst_C090OcgD","product_name":"Leonardo Supernova Fountain Pen – Primary Manipulation 5 – RGT #8 14K Gold","category":"Fountain Pen","description":"Description The Supernova 2025 – Primary Manipulation 5 is a limited edition of 225 pieces, created in collaboration between Leonardo Officina Italiana and Jonathon Brooks — one of the most distinctive resin artists in the world. This ambitious project combines Italian craftsmanship with Brooks’ signature resin artistry. The mesmerizing colors of Primary Manipulation 5 evoke the brilliance of a supernova — the luminous explosion of a star. Shades of plum, purple, magenta, and orange dominate the palette, shifting subtly into green, cyan, and blue for a balanced play between warm and cool tones. Finishes  Rose Gold /225 Silver /225 Yellow Gold /225 Ruthenium /225  Material &amp; Construction  Primary Manipulation 5 resin by Jonathon Brooks Transparent ink window on the section Integrated piston filling mechanism with 1.5 ml capacity Disassemblable using Leonardo’s special tool (sold separately) Entirely produced in Leonardo Officina Italiana’s workshop  Packaging  Steel nib versions: small box Gold nib versions: presentation box with ink bottle  Nib Options  \nGold #8 (Red Ebonite Feed): EEF, EF, F, M, B, BB, Stub 1.1 (La Fenice) ","images":["https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Supernova-Fountain-Pen-Primary-Manipulation-5-RGT-8-14K-Gold_6681eac3.jpg?v=1762526273","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Supernova-Fountain-Pen-Primary-Manipulation-5-RGT-8-14K-Gold-2_561adb79.jpg?v=1762526285","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Supernova-Fountain-Pen-Primary-Manipulation-5-RGT-8-14K-Gold-3_372ff703.jpg?v=1762526297","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Supernova-Fountain-Pen-Primary-Manipulation-5-RGT-8-14K-Gold-4.jpg?v=1762526298"],"price":745,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:59.533Z"},"share_url":"https://firestarter.network/l/lst_C090OcgD","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_C090OcgD' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Leonardo Supernova Fountain Pen – Primary Manipulation 5 – RGT #8 14K Gold' and a budget_max comfortably above $745.00 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."]}}