{"type":"firestarter.listing","listing":{"id":"lst_4zP-Fif9","product_name":"Washington Black Senators NLB Varsity Fitted Ballcap","category":"Ballcaps","description":"History: The Washington Black Senators, led by future Hall of Famer Ben Taylor, played in the Negro National League for one season in 1938 when the Washington Elite Giants moved and became the Baltimore Elite Giants. The team posted a miserable 2-13 record, and following that season the Negro League Baseball hole in Washington D.C.'s heart was filled by the Washington Homestead Grays.","images":["https://cdn.shopify.com/s/files/1/1487/1618/files/1000_f18b738c-a6ea-40b5-8988-eddfc4c3a8ed.jpg?v=1762955390","https://cdn.shopify.com/s/files/1/1487/1618/files/1000_78f06999-efb6-415e-88ea-6d643b19e329.jpg?v=1762955392","https://cdn.shopify.com/s/files/1/1487/1618/files/1000_6014a560-19a8-418d-90bc-6da5e395e60c.jpg?v=1762955395","https://cdn.shopify.com/s/files/1/1487/1618/files/1000_2b63e9b9-ad70-4b18-9de5-faac3c8e1e7a.jpg?v=1762955397"],"price":20,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:36.695Z"},"share_url":"https://firestarter.network/l/lst_4zP-Fif9","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 ","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_4zP-Fif9' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Washington Black Senators NLB Varsity Fitted Ballcap' and a budget_max comfortably above $20.00 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."]}}