Server has 8 tools with generally good naming conventions (all start with verbs: search, get, validate, match, clear). Descriptions are present for all tools and range from 50-150 characters, meeting the 10-1024 baseline. However, parameter descriptions are sparse or generic in several tools, and output schemas are completely undocumented. Tools like search_providers have comprehensive input schemas with proper enum constraints and descriptions, but others like match_providers lack clarity on their input structure. No tool documents what it returns, forcing LLMs to infer output structure. Error handling is not visible in tool definitions. The server shows moderate quality, above bare minimum but with clear gaps preventing A-grade status.

• Document output schemas for all 8 tools. Include field names, types, and descriptions. Example for get_provider_details: {npi: string, provider_name: string, specialty: string, phone: string, address: {...}, is_active: boolean}
• Consolidate search_by_name and search_by_location into search_providers (which already handles all cases). Remove duplicate tools to reduce LLM confusion.
• Remove or redesign match_providers: if it's an internal algorithm, hide it from the tool interface. If it's a user-facing tool, rename to reflect the action (e.g., fuzzy_match_providers) and formally define input types.
• Add format constraints to parameter schemas: npi_number should enforce pattern ^\d{10}$ (10 digits). state should be enum of valid US state codes. Add minItems/maxItems to limit parameter (1-200).
• Add error handling guidance to descriptions. Example for get_provider_details: 'Returns provider details or error if NPI not found. If not found, try search_providers() to find the correct NPI number.'
• For clear_cache, add confirmation step or dry-run option. Rewording: 'Clears all cached provider data. This is irreversible. Consider calling get_cache_stats() first to see what will be deleted.'
• Document pagination in search tool descriptions. State: 'Returns up to {limit} results (default 20, max 200). Use skip parameter to fetch subsequent pages. Response includes total_count for pagination planning.'
• Add natural language parameter handling: search_by_name should accept first_name OR last_name (make both optional), not require both. Current schema forces exact field matching; LLMs do better with flexible input.