{"type":"firestarter.listing","listing":{"id":"lst_OHYakVLJ","product_name":"Brass Messograf Pen","category":"Workshop Desk","description":"The vernier caliper measures outside dimensions to a tenth of a millimeter; the ruler is graduated in both centimeters and inches; the thread scale identifies metric screw diameters; the tire tread gauge reads profile depth via the clip; and the retractable ballpoint writes it all down. Few pens boast this many features, let alone such an elegant, simple, and functional design.\nThe epitome of quality-obsessed, hand-made, German craftsmanship and precision, seamlessly embodied in a multi-purpose ballpoint pen. Founded in 1945 in a small garage in Brandenburg, the Cleo Skribent pen company grew into a leading Eastern European maker of quality writing instruments, and its Messograf caliper pen soon became a trusted German staple, a weapon of choice among auto engineers, architects, and craftsmen. No matter your trade, we think you will find this tool a buoyant reminder of just how things should be made.\nAll individual parts and components are made in Germany. The replaceable ink cartridges are standard-size Parker-style and can be found in most stationery stores in the USA.\n","images":["https://cdn.shopify.com/s/files/1/0674/2985/9558/files/MESSO-PDP-LAYOUTS2.jpg?v=1779121051","https://cdn.shopify.com/s/files/1/0674/2985/9558/files/MESSO-PDP-LAYOUTS3.jpg?v=1779121063","https://cdn.shopify.com/s/files/1/0674/2985/9558/files/MESSO-PDP-LAYOUTS4.jpg?v=1779121077","https://cdn.shopify.com/s/files/1/0674/2985/9558/files/MESSO-PDP-LAYOUTS5.jpg?v=1779121098","https://cdn.shopify.com/s/files/1/0674/2985/9558/files/MESSO-PDP-LAYOUTS6.jpg?v=1779121113","https://cdn.shopify.com/s/files/1/0674/2985/9558/files/MESSO-PDP-LAYOUTS7.jpg?v=1779121125","https://cdn.shopify.com/s/files/1/0674/2985/9558/files/MESSO-PDP-LAYOUTS8.jpg?v=1779121139","https://cdn.shopify.com/s/files/1/0674/2985/9558/files/E60A7341.jpg?v=1779121158"],"price":98,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:24.448Z"},"share_url":"https://firestarter.network/l/lst_OHYakVLJ","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_OHYakVLJ' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Brass Messograf Pen' and a budget_max comfortably above $98.00 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."]}}