Server defines 6 tools with basic schemas and descriptions. All tools have names starting with action verbs (get_*), which is good. However, descriptions are generic and lack LLM-optimization guidance. Most critically, 4 of 6 tools have EMPTY input schemas (no properties defined), violating the schema requirement. Parameter descriptions are minimal or absent. No output schemas documented. Error handling returns raw error text without recovery guidance. This is a typical community server with foundational structure but significant quality gaps.

• Add output schema documentation to all tools. For get_korea_weather, document: {current: {temp, humidity, condition}, forecast: [{date, high, low, condition}]}. For get_exchange_rate, document: {currency, rate, timestamp}. This enables LLMs to plan chained calls.
• Expand descriptions to 150-250 characters with WHEN/WHAT/RETURN context. Example: 'Get current weather and 3-day forecast for a Korean city. Returns temperature, humidity, and conditions. Use this before suggesting outdoor activities or travel plans. Supported cities: Seoul, Busan, Jeju, Incheon, Daegu, Daejeon, Gwangju, Ulsan, Suwon.'
• Add enum constraints to parameters. For get_korea_weather, add 'enum: [Seoul, Busan, Jeju, Incheon, Daegu, Daejeon, Gwangju, Ulsan, Suwon]' to the city parameter. For get_korean_holidays, add 'minimum: 2000, maximum: 2100' to the year parameter.
• Implement error recovery guidance. When get_korea_weather fails with an unsupported city, return: 'City not found. Supported cities: Seoul, Busan, Jeju, Incheon, Daegu, Daejeon, Gwangju, Ulsan, Suwon. Try again with a valid city.' This lets the LLM self-correct.
• Add per-item success/failure for batch-like operations. If get_all_exchange_rates returns multiple currencies, include a 'status' field per currency so partial failures are visible to the LLM.