This server has critical definition gaps. Only 2 tools are defined, both with minimal descriptions (under 50 chars). The list_products tool has an empty input schema ({}), violating the requirement that every parameter be described. fetch_product has a basic schema with 2 parameters, but descriptions lack actionable detail (no format constraints, no enum values, no error guidance). No output schemas are documented. No error handling guidance. The server appears to be a thin wrapper around a crypto API with no MCP-specific tooling patterns applied.

• Add output schema to list_products documenting the structure of returned products (e.g., {id, tier, price_usdc, description}) so LLM can extract product_id for chaining to fetch_product.
• Add output schema to fetch_product documenting the response structure (e.g., {data: {rsi, price_live, order_flow}, ...}) so LLM knows what fields to extract.
• Replace 'symbol' parameter description with an enum or pattern constraint: 'Cryptocurrency symbol (e.g., BTC, ETH, SOL, DOGE). Must be uppercase, 2-5 characters.'
• Add error handling guidance: 'If API key is missing, returns 401 with message "Set GRIDDY_API_KEY environment variable". If symbol is invalid, returns 400 with available symbols.'
• Document pagination or result limits. Does list_products return all products or paginated results? If large, add limit/offset parameters and document max result count.