Single tool 'execute_skill_action' has a minimal schema with only one string parameter. Description is present (94 chars) but lacks critical context: what does 'query_payload' contain? What format? What are valid inputs? No output schema documented. Parameter description is generic ('Input execution payload') and does not explain the expected format, structure, or constraints. No error handling guidance. Tool name uses 'execute' + 'action' (generic verb + noun) rather than a specific action like 'synthesize_sql' or 'execute_sql_query'. The server claims to synthesize CTE SQL but the tool interface does not reflect this capability, the tool is a black box that accepts an opaque string and returns a generic success message. No evidence of idempotency, pagination, or structured output. This is a stub implementation masquerading as a production tool.

• Rename tool to 'synthesize_cte_sql' or 'execute_sql_query' to clearly convey the action and match the server's stated purpose.
• Document the 'query_payload' parameter with explicit format: 'A JSON object with keys: business_prompt (string, natural language query), target_dialect (enum: POSTGRESQL, MYSQL, TSQL), optional_constraints (object). Example: {"business_prompt": "Top 5 customers by MRR growth", "target_dialect": "POSTGRESQL"}'.
• Add a documented output schema: 'Returns a JSON object with: synthesis_id (string), synthesized_sql (string), cte_layers_count (integer), contains_window_functions (boolean), semantic_validation_passed (boolean), query_plan_url (string). Example: {"synthesis_id": "cte_sql_8812", "synthesized_sql": "WITH ... SELECT ...", ...}'.
• Expand tool description to 150-250 chars: 'Synthesizes optimized CTE SQL queries from natural language business prompts. Supports PostgreSQL, MySQL, and T-SQL dialects. Validates semantic correctness and returns the generated SQL with metadata. Use this to convert business questions into executable SQL without manual writing.'
• Add error handling with recovery guidance: 'If semantic_validation_passed is false, the generated SQL may have logical errors. Review the query_plan_url or call this tool again with a more specific business_prompt. If the tool times out, the query may be too complex, simplify the business_prompt or break it into multiple queries.'