Three tools with mixed quality. search_tools has a solid description (127 chars) and proper schema with type constraints (query string, limit 1-50 integer). However, echo and add are trivial examples with minimal descriptions (18 and 16 chars respectively, below the 20-char floor). No output schemas documented for any tool. No error handling guidance. Tool names lack verb-noun clarity (search_tools is acceptable; echo/add are generic). Parameters lack descriptions in echo/add. No tool annotations (readOnlyHint, destructiveHint, idempotentHint). The gateway platform itself is a proxy/orchestrator, not a primary MCP server, the three exposed tools are minimal and appear to be examples rather than production-grade implementations.

• Expand echo and add descriptions to 50-150 characters explaining when to use them and what they return. E.g., 'Echo back the given message unchanged. Useful for testing connectivity and message round-trip integrity.'
• Document output schemas for all tools. E.g., search_tools should return {type: 'object', properties: {tools: {type: 'array', items: {type: 'object', properties: {name, description, qualified_name}}}}}.
• Add descriptions to echo's 'message' parameter and add's 'a'/'b' parameters. E.g., 'message (string): The text to echo back unchanged.'
• Add error handling guidance to search_tools: 'If no tools match the query, returns empty list. If the gateway is unavailable, returns a 503 error with retry guidance.'
• Consider removing echo and add from production exposure, they are test/example tools. If kept, add tool annotations (readOnlyHint: true) to the schema.