{"type":"firestarter.listing","listing":{"id":"lst_M2zp83LV","product_name":"Stout T Shirt | Percival x Guinness | Black","category":"Jersey","description":"Your new favourite pour. Guinness x Percival stout embroidered t shirt of course it comes in black. Rich in texture, our embroidery tees are always serving (while stocks last). Portuguese organic cotton tee with hand illustrated stout embroidery at chest, heritage meets thread count. Sláinte.\nMen's Guinness Black T-shirt\n\nFeatures: Men's t shirt, part of the Guinness x Percival collection a limited edition capsule. This the embroidered t-shirt with detailed Guinness pint and logo at chest, woven label at hem.\nColour: Black\nMaterial: 100% Organic Cotton\nCare: Wash at 30 degrees\n\nModel is 6ft and wears a medium\nCollection: Guinness x Percival\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/1479/8488/files/PERCIVAL_MENSWEAR2_61fc3a41-231d-43e6-bf88-2e0220746aeb.jpg?v=1761232125","https://cdn.shopify.com/s/files/1/1479/8488/files/PERCIVAL_MENSWEAR1_0ea2b669-5945-47ed-a7c9-5c7ca51cd2a1.jpg?v=1761232121","https://cdn.shopify.com/s/files/1/1479/8488/files/PERCIVAL_MENSWEAR3_1a15c456-baa2-4ad3-b0c0-df1f744621c6.jpg?v=1761232122","https://cdn.shopify.com/s/files/1/1479/8488/files/PERCIVAL_MENSWEAR_c8a90cdf-be41-4b29-ace6-9af6aeea0dfc.jpg?v=1761232121","https://cdn.shopify.com/s/files/1/1479/8488/files/PERCIVAL_MENSWEAR10_2ae21214-9cc4-47b5-af3a-af43dfdee442.jpg?v=1761577718","https://cdn.shopify.com/s/files/1/1479/8488/files/Stout_tshirt_Percival_x_Guinness_Black_1.jpg?v=1761584935"],"price":95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:17.635Z"},"share_url":"https://firestarter.network/l/lst_M2zp83LV","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_M2zp83LV' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Stout T Shirt | Percival x Guinness | Black' and a budget_max comfortably above $95.00 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."]}}