Single tool 'ping-pong' has a generic, non-action-verb name that violates naming conventions. Description is minimal (34 chars, below 50-char baseline for clarity). Input schema is present with two parameters (command, session_id), both typed as strings with descriptions, but lacks enum constraints on the 'command' parameter despite accepting only three known values ('ping', 'pong', 'count'). No output schema documented. Error handling returns raw exception strings instead of actionable recovery guidance. Tool violates single-responsibility principle by handling three distinct commands in one tool. No parameter validation or constraint documentation.

• Rename tool to 'send_ping_pong' or split into three tools: 'send_ping', 'send_pong', 'get_session_count'. Action verbs enable LLM intent inference.
• Add enum constraint to 'command' parameter: {"type": "string", "enum": ["ping", "pong", "count"], "description": "The command to execute: 'ping' (respond with pong), 'pong' (respond with ping), or 'count' (return call count for this session)"}
• Document output schema: 'Returns a string response: "pong" or "ping" for ping/pong commands, or a numeric string for count command. Example: "3".'
• Replace generic error handling with specific, actionable messages. Example: 'Invalid command: got "invalid". Must be one of: ping, pong, count. Try again with a valid command.'
• Add parameter descriptions explaining session_id purpose: 'A unique identifier to track state across multiple calls. Use the same session_id to maintain call count across requests.'