Server defines 6 weather tools with basic schemas and descriptions. All tools have names starting with action verbs (get_, compare_) and descriptions present. However, parameter descriptions are minimal or absent, most params lack detail on format, constraints, or when to use them. Output schemas are not documented. Error handling is present but generic ('error: data.message'). No tool annotations (readOnlyHint, etc.). Composition is reasonable (each tool does one thing), but descriptions fall short of LLM-optimization standards (avg ~60 chars, below 194-char baseline). No pagination support despite forecast/comparison tools returning multiple items.

• Add detailed parameter descriptions: 'city: City name (e.g., London, Paris). Accepts full names or partial matches. Required.'
• Document output schemas in tool descriptions or as separate schema blocks. E.g., 'Returns: {city: string, temp: number (°C), description: string}'
• Enhance error messages with recovery hints: 'City "xyz" not found. Try a partial name (e.g., "New") or check spelling.'
• Add readOnlyHint annotation to all tools to signal they are safe for autonomous execution.
• For compareWeather, add limit parameter (default 5, max 5) and document that results are capped at 5 cities.