{"type":"firestarter.listing","listing":{"id":"lst_o_wucELC","product_name":"RUBY Milk Glass Mug","category":null,"description":"Introducing the perfect blend of timeless craftsmanship and contemporary design: the custom milk glass mug, a collaboration between Ruby Coffee Roasters, Tsunagu Craft, and Knorth Studios. Handcrafted in Japan by the artisans of Tsunagu Craft, this mug elevates your coffee ritual with its impeccable quality and charm.\nThe design, created by the talented team at Knorth Studios, combines a fresh, modern aesthetic with a classic appeal that feels both familiar and new. The durable milk glass construction offers a smooth, semi-translucent finish that feels luxurious in hand while ensuring lasting durability. Its clean lines and balanced weight make it an ideal vessel for savoring Ruby's expertly roasted coffee, whether at home or in your favorite cozy corner.\nThis one-of-a-kind collaboration celebrates the artistry of small-batch production and the joy of meaningful connections—crafted in Japan, shared in Wisconsin, and cherished wherever you are.\nMake it your go-to mug for every coffee moment or gift it to the coffee lover in your life. Available now, exclusively at Ruby Coffee Roasters.\n\nNot heat-resistant glass\nDo not use the product with sudden temperature changes\ndo not use microwave, oven or dishwasher\nhandmade in Japan\n\nEach cup holds approximately 10 oz","images":["https://cdn.shopify.com/s/files/1/0339/5565/files/ruby_milk_glass_mug_-1Crop.jpg?v=1734114173","https://cdn.shopify.com/s/files/1/0339/5565/files/ruby_milk_glass_mug_-2Crop.jpg?v=1734114173","https://cdn.shopify.com/s/files/1/0339/5565/files/ruby_milk_glass_mug_-3crop.jpg?v=1734114173","https://cdn.shopify.com/s/files/1/0339/5565/files/ruby_milk_glass_mug_-5.jpg?v=1734114173","https://cdn.shopify.com/s/files/1/0339/5565/files/ruby_milk_glass_mug_-4.jpg?v=1734114173","https://cdn.shopify.com/s/files/1/0339/5565/files/ruby_milk_glass_mug_-6.jpg?v=1734114171"],"price":35,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:15.504Z"},"share_url":"https://firestarter.network/l/lst_o_wucELC","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_o_wucELC' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy RUBY Milk Glass Mug' and a budget_max comfortably above $35.00 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."]}}