The server has 3 tools with partial schema coverage but significant gaps in descriptions and parameter documentation. The add_index_data tool has a complete input schema with proper types and descriptions (compliant with production baseline of 100% A+ tools having documented schemas). However, get_alerts and get_forecast lack visible descriptions in the source code provided. All tools lack documented output schemas and error handling guidance. Parameter descriptions in add_index_data are present but generic (e.g., 'Two-letter US state code' for get_alerts is minimal). No tool output format is documented, violating the pattern:tool-description baseline of 100% A+ tools having output documentation. Tool naming follows verb_noun convention (add_, get_) which is positive.

• Complete the docstring for add_index_data with explicit output schema: document what structure is returned on success (e.g., {"success_count": int, "errors": [str]}), and what error structure is returned.
• Add comprehensive tool descriptions for get_alerts and get_forecast explaining WHAT each does, WHEN to use it, and WHAT it returns. Expand from current ~20 chars to 50-200 chars (A+ baseline).
• Convert period_type to an enum in the schema: {"type": "string", "enum": ["REAL_TIME", "MINUTE", "HOUR", "DAY", "MONTH", "YEAR"], "description": "Time granularity for aggregation..."} to prevent hallucinated values.
• Enhance parameter descriptions with validation rules and error guidance. For time_period, document: 'Format: YYYY-MM-DD HH:MM:SS (single), comma-separated list, or range with ~ (e.g., 2023-01-01 00:00:00~2023-01-10 00:00:00). Invalid formats return a clear error message.'
• Document error responses with recovery guidance. For add_index_data, define: 'Returns {"success_count": int, "errors": [str]} with per-batch failures. Each error string includes the batch number and failure reason. Retry with smaller batch_size if any batch fails.'
• For get_alerts, clarify what happens if the state code is invalid or not found. Document: 'If state not found, returns {"error": "Invalid state code", "valid_states": [...]}' to enable agent self-correction.
• Add per-tool output examples in description text (not example values, but schema reference). E.g., 'Returns: {"forecast": {"temperature": float, "condition": string, "timestamp": ISO8601}, "source": string}'.

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

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