{"type":"firestarter.listing","listing":{"id":"lst_FGe5IcAp","product_name":"Lumos - Grip & Rollstop","category":"Lumos","description":"Handmade in the UK by master leatherworker, Edward De Lacy. These nifty little grips take using your Lumos to another level. Made from your choice of Portugese Cork or Veg-Tanned leather (Natural or Black) they have a soft, forgiving tactile feel making writing, drawing or brush lettering a joy.\nMeasuring 12-13mm in diameter they have a nice chunky feel to them meaning you don't have to death-grip your pen. They also slide up and down so you can use it easily on either end of your Lumos Pro. As a little bonus I designed them to create a rollstop so your pen won't be going anywhere even on the most uneven of surfaces.\nMeasures: 12-13mm x 40mmWeight: 3g","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-grip-and-rollstop-black-cork-natural.jpg?v=1768161765","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-grip-and-rollstop-natural-leather.jpg?v=1768161765","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-grip-and-rollstop-black-leather.jpg?v=1768161765","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-grip-and-rollstop-cork.jpg?v=1768161765","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-grip-and-rollstop-natural-leather-blush-pen.jpg?v=1767871590","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-grip-and-rollstop-black-leather-black-pen.jpg?v=1767871590","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/lumos-grip-and-rollstop-cork-sage-pen.jpg?v=1767871590"],"price":19,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:23.675Z"},"share_url":"https://firestarter.network/l/lst_FGe5IcAp","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_FGe5IcAp' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Lumos - Grip & Rollstop' and a budget_max comfortably above $19.00 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."]}}