This server has critical definition gaps. Tool descriptions are present but minimal (10-50 chars), falling well below the 194-char baseline for production tools. Most parameters lack descriptions entirely, e.g., create_checkout's 'items' array has no description of what fields each item object requires. Input schemas exist but are sparse: no enums for constrained values, no min/max bounds, no format specifications. The call_tool meta-tool exposes a generic 'arguments' object with no schema, making it impossible for LLMs to know what parameters downstream tools accept. Error handling is absent, no recovery guidance, no categorization of retryable vs fatal errors. The server conflates UCP (Universal Commerce Protocol) with MCP, creating confusion about which tools are MCP-native vs UCP-bridged.

• Add 50 - 150 character descriptions to every tool explaining WHAT it does, WHEN to use it, and WHAT it returns. E.g., 'Search the WooCommerce product catalog by name, SKU, or description. Returns up to 20 matching products with price, availability, and images. Use this to help customers find items before checkout.'
• Document every parameter with type, format, and constraints. E.g., create_checkout's items: 'Array of cart items. Each item must have: id (integer, product ID), quantity (integer, 1 - 999). Example: [{"id": 42, "quantity": 2}]'
• Replace the generic call_tool meta-tool with explicit tool definitions. Instead of call_tool(name, arguments), expose each UCP tool (search_products, create_checkout, etc.) as a first-class MCP tool with full schemas.
• Add error handling with recovery hints. E.g., if create_checkout fails with 'Cart is empty', return: 'Error: Cart is empty. Call search_products() to find items, then add them to the cart before checkout.'
• Add input validation: minItems/maxItems for arrays, maxLength for strings, enum for status fields. E.g., update_checkout's email should match a regex pattern and have a maxLength of 254.