Four tools with basic schemas and descriptions, but significant gaps in parameter documentation and output schema clarity. Tool names follow verb_noun convention (query_, get_, download_, generate_). Descriptions exist but are generic (avg ~100 chars, below 194-char baseline). Parameters lack type constraints and validation guidance. No error handling documentation. Output schemas are inferred (JSON strings returned) rather than formally documented. Security: path validation present in download_data and generate_dashboard, but no permission gates or audit logging.

• Add formal enum constraints to 'market' parameter: {"type": "string", "enum": ["daily", "ohlcv", "monthly", "auction"]}. Prevents hallucinated values.
• Document output schemas for all tools. E.g., query_trading_data returns {"data": [{"date": string, "permit_type": string, "price": number, ...}], "count": number}. Enables LLM planning.
• Add format constraint to date parameters: {"type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$"}. Prevents date parsing errors.
• Expand get_market_summary description to 100+ chars explaining what fields are returned and when to call it. E.g., 'Returns latest trading prices for KAU/KCU/KOC, date range of available data, and count of trading days. Call this first to understand data coverage.'
• Add error handling documentation: 'If market is invalid, returns ValueError with list of valid options. If date range is empty, returns empty result set (not an error). If database is unavailable, returns 500 with retry guidance.'