{"type":"firestarter.listing","listing":{"id":"lst_o_YgaLbb","product_name":"Optimist - 10L Mini Backpack","category":"Backpack","description":"An exceptionally lightweight and tough little daypack! Small in stature yet infinitely practical, the Optimist steps up where a full-size bag feels excessive. The perfect backpack for a day of adventures. Crafted from durable, abrasion resistant fabrics, it offers a main compartment and outside stash pocket—both sealed with weather resistant zippers. This mini backpack is fit for the essentials you bring on your daily commute, a pre-work bike ride, weekend hikes, or a spontaneous days trip beach.","images":["https://cdn.shopify.com/s/files/1/0040/7401/2790/products/ff10bp043-10optimist-navy.png?v=1710360194","https://cdn.shopify.com/s/files/1/0040/7401/2790/files/Backpacks25_sq_68b745f9-65e1-45c3-9844-037c1636e8c2.jpg?v=1710360194","https://cdn.shopify.com/s/files/1/0040/7401/2790/files/Backpacks26_sq_0b6b6bb2-4a3a-465e-8258-843ca6b633d2.jpg?v=1710360194","https://cdn.shopify.com/s/files/1/0040/7401/2790/files/Backpacks33_sq_7462702c-e4fc-4246-9a78-a9fdbffbb2b2.jpg?v=1710360194","https://cdn.shopify.com/s/files/1/0040/7401/2790/products/FF10BP042x3.jpg?v=1710360194","https://cdn.shopify.com/s/files/1/0040/7401/2790/products/ff10bp042-ecopak-10l-optimist-backpack.png?v=1710360194","https://cdn.shopify.com/s/files/1/0040/7401/2790/products/10L-optimist-backpack-jet-black.png?v=1710360194","https://cdn.shopify.com/s/files/1/0040/7401/2790/files/10L_Optimist_-_Olive.png?v=1763994020","https://cdn.shopify.com/s/files/1/0040/7401/2790/files/10L_Optimist_-_Brick_Red.png?v=1764868430"],"price":90,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:39.266Z"},"share_url":"https://firestarter.network/l/lst_o_YgaLbb","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_o_YgaLbb' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Optimist - 10L Mini Backpack' and a budget_max comfortably above $90.00 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."]}}