{"type":"firestarter.listing","listing":{"id":"lst_4T3MCffo","product_name":"Runner's Athletics - Midnight Marathoner Sprinters","category":"Sunglasses","description":"\n\nIconic, best-selling look: Provide timeless style for everyday runs and race-day photos on road and track sessions.\n\nAnti-fog coating: Ensure clear vision in humid miles, cold mornings, and hill repeats to keep footing and pace.\n\nUltra-lightweight design: Improve comfort on long runs, tempo days, and marathons to support steady form and breathing.\n\nSpring flex hinges: Deliver a flexible, secure fit that withstands tempo surges, intervals, and sharp turns on trails.\n\nNo-slip, no-bounce fit: Keep sunglasses planted during sprints, stairs, and fast descents to ensure stable vision and cadence.\n\nBlend of coverage and style: Provide balanced coverage and clean lines to keep eyes covered while you train, race, and recover.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/square-running-sunglasses-uv400-polarized-lightweight-runners-ath-1215288619.png?v=1780595911","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/square-running-sunglasses-uv400-polarized-lightweight-runners-ath-1215288227.png?v=1780595911","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/square-running-sunglasses-uv400-polarized-lightweight-runners-ath-1215287629.png?v=1780595911","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/square-running-sunglasses-uv400-polarized-lightweight-runners-ath-1215287628.png?v=1780595910","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/square-running-sunglasses-uv400-polarized-lightweight-runners-ath-1215287627.png?v=1780595911","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/square-running-sunglasses-uv400-polarized-lightweight-runners-ath-1215287626.png?v=1780595911","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/running-sunglasses-midnight-blue-lens-on-model-women-lifestyle.webp?v=1780595911","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/running-sunglasses-midnight-blue-lens-on-model-men-lifestyle.webp?v=1780595911"],"price":60,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:59.688Z"},"share_url":"https://firestarter.network/l/lst_4T3MCffo","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_4T3MCffo' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Runner's Athletics - Midnight Marathoner Sprinters' and a budget_max comfortably above $60.00 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."]}}