{"type":"firestarter.listing","listing":{"id":"lst_QORqLysT","product_name":"Chalk Sak 300 Piece","category":"Chalk","description":"DESCRIPTION:\n300 count Chalk Sak. Two ounces of pure magnesium carbonate compacted into a ball and ready to be tossed in your favorite bag or bucket. Perfect for indoor gym climbing.","images":["https://cdn.shopify.com/s/files/1/0424/1145/files/chalk-sak-300-piece-so-ill-so-ill-2223622.jpg?v=1771323850"],"price":1700,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:48.507Z"},"share_url":"https://firestarter.network/l/lst_QORqLysT","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_QORqLysT' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Chalk Sak 300 Piece' and a budget_max comfortably above $1700.00 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."]}}