product_lookup
ChatGPTLook up one product by its product-page URL on any supported merchant site (for example https://www.lagence.com/products/...). Returns the product's details, prices, images, sizes, colors, variants, and a Markdown rendering suited to summarising the product. The URL must be an absolute http(s) link to a single product page, not a category, search, or home page. If the product is not in Cosimo's index yet, this returns an error and product_search may still find it by description. Use for explicit product-information requests, including variant availability and retailer links. Looking up a variant does not reserve stock or start checkout. Do not use solely to fulfill requests to place orders, process payments, track/refund orders, or edit merchant prices or inventory. To include images in a single-product or follow-up detail reply in an MCP Apps host, call render_products with this product's returned merchant productUrl. Keep the verified material, size, color, price, and stock details in the chat response alongside the card.






