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• Enhance tool description: 'Echo messages for testing MCP connectivity. Accepts a message string (1 - 1000 chars), appends a server-generated timestamp and metadata, and returns the enriched payload. Use this to verify the server is responding and to test message roundtrip integrity. Returns {echoed_message, timestamp, server_metadata}.'
• Rename tool from 'echo' to 'send_echo_message' or 'test_echo_response' to signal intent clearly.
• Document the complete response schema: 'Returns a JSON object with fields: (string) echoed_message, (string) timestamp (ISO 8601), (object) metadata {transport, version, server_id}. The timestamp is generated server-side and can be used to verify latency.'
• Add error handling guidance to the parameter description: 'Message string, 1 - 1000 ASCII characters. If message exceeds 1000 chars, the tool returns a 400 error with the message: "Message exceeds max length. Truncate to 1000 chars and retry."'
• Add a note about idempotency: 'This tool is idempotent, calling it multiple times with the same message produces the same echoed_message field but different timestamps (one per call).'
• Consider expanding the tool scope: a single 'echo' test tool provides limited value. Add companion tools like 'get_server_health', 'list_capabilities', or 'describe_supported_features' to form a coherent test/discovery toolset.