{"type":"firestarter.listing","listing":{"id":"lst_2AOFjAe7","product_name":"Mushroom, Shiitake Powder, Japan","category":"Pure Spices A-Z","description":"Ground shiitake mushrooms with deep umami flavor sourced directly from the quiet, mountain forests of southern Japan. Add to stocks, sauces, and soups. Try in stir-fries or rice dishes. Directly sourced from the mountains of south-west Japan. Add this wow-factor spice to your kitchen! As our supplier told us \"Zen monks found Forest-grown Shiitake is the best Umami enhancer for Vegan Cuisine more than 1000-years ago.\"0.75 oz Jar","images":["https://cdn.shopify.com/s/files/1/0548/7922/3970/files/pure-mushroom-shiitake-japanese-seamless-4oz.jpg?v=1743107387","https://cdn.shopify.com/s/files/1/0548/7922/3970/files/pure-mushroom-shiitake-japanese-topdown.jpg?v=1743107392","https://cdn.shopify.com/s/files/1/0548/7922/3970/files/pure-shiitake-mushroom-powder-japanese-growing-conditions.jpg?v=1744812215"],"price":7.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:09.754Z"},"share_url":"https://firestarter.network/l/lst_2AOFjAe7","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_2AOFjAe7' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Mushroom, Shiitake Powder, Japan' and a budget_max comfortably above $7.95 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."]}}