Search retail product catalogs (Amazon or Walmart) by keyword. Returns matching products with title, brand, image, price in USD, star rating, review count, and availability; each result includes a product URL that feeds directly into get-product-details and order-product. By default returns ONLY orderable products (the top hits are verified to be purchasable via checkout, so Amazon Fresh / grocery / perishable produce and unavailable listings are filtered out even when they still advertise a catalog price); pass orderableOnly=false for raw catalog results. Also filters to free-shipping items by default (Amazon Prime / Walmart $0 shipping) so results are quote-safe; pass freeShipping=false to include paid-shipping listings. Ideal for: finding physical products to order, price comparison, building shopping workflows.
