The server provides a single well-defined tool (get_notams) with strong naming, comprehensive parameter documentation, and proper schema constraints. The tool uses verb_noun naming (get_notams), has a clear 194-character description explaining WHAT it does and HOW it works (auto-fetches all pages), and all parameters include type definitions with validation constraints. Input schema is fully specified with regex patterns, min/max bounds, and meaningful descriptions. However, the output schema is not explicitly documented in the tool definition, we see the API client returns a dict but no formal schema is declared for the LLM. Error handling is minimal (raises httpx exceptions without recovery guidance). The tool correctly injects API credentials via environment variables, avoiding secret leakage in parameters.

• Add formal output schema declaration to the tool definition. Document the structure: {notams: [{id, type, status, ...}], total_count: int, page: int, per_page: int}. This allows LLMs to plan response extraction.
• Wrap API errors in a custom ToolError with actionable messages. E.g., for ValidationError on ICAO codes, return 'Invalid ICAO code. Must be 4 uppercase letters (e.g. KJFK, EGLL). Got: <value>'. For auth failure, return 'API key invalid or expired. Ensure NOTAMIFY_API_KEY is set correctly.' This guides LLM retries.
• Remove example values from the 'locations' parameter description. Replace '(e.g. [\"KJFK\"], [\"EGLL\", \"EDDM\"])' with statement of the constraint: 'Array of 1 - 5 ICAO codes. Each must be exactly 4 uppercase letters matching pattern ^[A-Za-z]{4}$. Examples: KJFK, EGLL, EDDM (but pass as [\"KJFK\"], not the string itself).' Or better, omit examples and rely on the regex pattern.
• Update tool description to include pagination behavior: 'Automatically fetches all NOTAMs across all pages. Response includes total_count (total matches) and per_page (actual count returned). If total_count exceeds 500, consider narrowing the time range or location filters to improve performance.'
• Add a dry-run / confirmation step if NOTAMs will be used for consequential decisions. Consider a second parameter like confirm=false to allow agents to preview results before committing.