17 tools with consistent naming (verb_noun pattern) and descriptions present. However, schemas are incomplete: most parameters lack explicit type definitions in visible code, and output schemas are entirely undocumented. Parameter descriptions are present but generic (avg ~40 chars, below 72-char baseline). Error handling is minimal, no recovery guidance, no categorization. Security concerns: cart operations lack confirmation patterns for irreversible checkout. Composition is reasonable (single responsibility per tool), but missing pagination/limits on list operations (get_categories, get_featured_products, get_deals).

• Document output schema for every tool. Example: 'Returns {product_id: string, name: string, price: integer, rating: float, in_stock: boolean, image_url: string}'. This enables LLM planning.
• Add enum constraints to parameters with fixed options. Change sort_by description to include enum: ['relevance', 'price_asc', 'price_desc', 'rating', 'newest']. Same for payment_method.
• Implement confirmation pattern for checkout: add a 'confirm_checkout' parameter (boolean, default false) or return a 'requires_confirmation' response that forces a second call with explicit user approval.
• Add pagination to list tools: add 'limit' (1-100, default 20) and 'offset' (default 0) parameters to get_categories, get_featured_products, get_deals. Return total_count in response.
• Enhance error messages with recovery guidance. E.g., 'Product ID "xyz" not found. Try search_products(query="...") to find available items.' This guides LLM self-correction.