Three tools with basic schemas and descriptions, but significant gaps in parameter documentation, output schema clarity, and error handling. Tool names lack clear action verbs (hello_world, spot_ticker_price, spot_kline are vague about intent). Descriptions are present but minimal (10-30 chars), below the 50-200 char LLM-optimized baseline. Parameters have type and description, but no enums for constrained inputs (e.g., 'interval' should enumerate valid kline intervals). No documented output schemas, callers cannot predict response structure. No error handling guidance. spot_kline has optional parameters but no documentation of dependencies or defaults.

• Rename tools with action verbs: 'hello_world' → 'greet_user'; 'spot_ticker_price' → 'get_spot_price'; 'spot_kline' → 'get_kline_data'.
• Expand descriptions to 50-200 chars. Example: 'get_spot_price: Fetch the current market price of a cryptocurrency from Binance. Returns symbol and price. Use this to check live prices before trading.'
• Document output schemas explicitly. For spot_kline, specify: 'Returns array of objects with fields: open_time (int), open_price (string), high_price (string), low_price (string), close_price (string), volume (string), close_time (int), quote_asset_volume (string), number_of_trades (int), taker_buy_base_asset_volume (string), taker_buy_quote_asset_volume (string).'
• Add enum constraint for 'interval' parameter: enum=['1m', '5m', '15m', '30m', '1h', '4h', '1d', '1w', '1M']. Update description: 'The kline interval (1m, 5m, 15m, 30m, 1h, 4h, 1d, 1w, 1M).'
• Wrap HTTP errors with actionable guidance. Example: 'Invalid symbol. Verify the symbol exists on Binance (e.g., ETHUSDT, BTCUSDT). If unsure, try a common symbol like BTCUSDT.' Catch network timeouts and suggest retry.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry