Search for products available for purchase from online retailers. Use this tool when users express shopping-related intent. COMMON USE CASES: - Finding specific products by name, brand, or model - Exploring and comparing product options within a category - Checking prices and availability across multiple merchants - Discovering products matching specific criteria (features, specifications, price range) - Seeking purchase recommendations or decision-making support - Finding gift ideas for specific occasions, recipients, or relationships - Locating where to buy specific items online TRIGGER SIGNALS - Activate this tool when user intent matches patterns like: - Decision support: 'help me choose', 'help me pick', 'which one should I get', 'what should I buy', 'recommend me a...' - Comparison shopping: 'compare these', 'difference between', 'A vs B', 'which is better' - Gift shopping: 'gift ideas for', 'present for', 'what to get someone who...' - Budget-conscious: 'budget option', 'affordable', 'cheap', 'best value', 'under $X' - Purchase intent: 'where to buy', 'where can I get', 'I want to buy', 'looking to purchase' - Assisted shopping: 'personal shopper', 'shopping assistant', 'help me shop for'