The server defines 6 tools with reasonable naming conventions and basic descriptions, but falls short of production-grade quality. Tool names follow verb_noun patterns (list_products, search_products, get_product_details, add_to_cart, view_cart, place_order), which is good. However, descriptions lack depth and LLM guidance. Input schemas are present with type definitions, but parameter descriptions are minimal and lack context about constraints, dependencies, or error recovery. Output schemas are not documented at all. Error handling is minimal, the code returns generic error strings without categorization or recovery guidance. The biggest gaps are: (1) missing output schema documentation, (2) no enum constraints on constrained inputs, (3) no parameter range or format specifications, (4) no idempotency or dry-run support for irreversible operations like place_order, and (5) no guidance in descriptions about authentication requirements or multi-step workflows.

• Document the output schema for every tool. For list_products and search_products, specify the structure of each product object (id, name, price, category, image_url, etc.). For place_order, document what the success response contains (order_id, status, estimated_delivery, etc.).
• Unify product_id type across all tools. Pick either 'string' or 'number' and use it consistently. Update get_product_details and add_to_cart to match. If both IDs and SKUs are valid, use separate parameters: product_id and product_sku.
• Add bounds to numeric parameters: limit (1 - 100, default 20), offset (≥0), quantity (1 - 1000), min_price (≥0), max_price (>min_price or omit if unlimited).
• For category_id in search_products, either: (a) add an enum of valid category IDs, or (b) document that users should call list_categories first (and implement that tool).
• Implement a place_order confirmation or dry-run mode. Add an optional 'confirm' parameter (boolean, default false). If false, return estimated totals and ask for confirmation. If true, execute. This prevents duplicate orders from retries.
• Rewrite tool descriptions to include LLM guidance: 'Search for products by name or keyword (use this for filtered queries). For browsing all products, use list_products instead.' Similar clarity for other tools.
• Add a recovery-guide error pattern: when a resource is not found, return available alternatives. E.g., 'Product 123 not found. Did you mean: product_456 (Laptop), product_789 (Tablet)?'
• Document authentication flow in place_order and add_to_cart descriptions: 'This operation uses the authentication token configured at server startup (via ECOMMERCE_AUTH_TOKEN). Ensure the token is valid and the user has checkout permissions.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry