{"type":"firestarter.listing","listing":{"id":"lst_42Tg1iOP","product_name":"Adult Full Arm Cast Shower Cover","category":"Cast Cover","description":"Keep your cast, PICC line or bandages dry in the shower with our waterproof full arm shower cover that is non-slip and keeps water out.","images":["https://cdn.shopify.com/s/files/1/0667/1365/products/showercover_0001_showercover_0001_AD33401A08_Clear_front_020_tif_jpg.jpg?v=1641331500","https://cdn.shopify.com/s/files/1/0667/1365/products/showercover_0002_showercover_0002_AD33401A08_Clear_side_012_tif_jpg.jpg?v=1641403000","https://cdn.shopify.com/s/files/1/0667/1365/products/showercover2copy_400e4d44-2132-4083-8c20-67f4790585af.jpg?v=1641403000"],"price":30,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:43:51.059Z"},"share_url":"https://firestarter.network/l/lst_42Tg1iOP","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_42Tg1iOP' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Adult Full Arm Cast Shower Cover' and a budget_max comfortably above $30.00 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."]}}