Single tool 'exec' with severely deficient definition. Tool name is generic and does not follow verb_noun pattern (should be something like 'query_analytics' or 'call_posthog_api'). Description is 104 chars but vague, does not explain WHAT the tool does, WHEN to use it, or what it returns. Input schema has only one parameter 'command' (string type) with minimal description. No output schema documented. No error handling guidance. No parameter constraints (enums, ranges, patterns). Tool appears to be a pass-through wrapper around PostHog's CLI subcommands rather than a properly designed MCP tool. The 'token-optimized' claim in description is marketing language, not functional documentation.

• Rename 'exec' to action-specific tools: 'list_posthog_tools', 'search_posthog_insights', 'query_posthog_trends', 'get_posthog_schema'. Each should have a single, clear responsibility.
• Add enum constraint to 'command' parameter: {"type": "string", "enum": ["tools", "search", "info", "schema", "call"], "description": "PostHog subcommand to execute..."}
• Document output schema for each subcommand variant. E.g., 'tools' returns {"tools": [{"name": string, "description": string}]}, 'search' returns {"results": [{"id": string, "name": string, ...}], "total": number}.
• Rewrite description to be LLM-optimized (50-200 chars): 'Query PostHog analytics, trends, funnels, and session replay. Use this to fetch insights, search events, and retrieve project data. Returns structured JSON with results and metadata.'
• Add error handling section: 'On invalid subcommand, returns {"error": "Unknown subcommand", "valid_options": [...]}. On auth failure, returns {"error": "Unauthorized", "hint": "Check PostHog API key in auth.json"}. On timeout, retry with exponential backoff.'