This server demonstrates strong definition quality with two well-designed tools. Both tools have comprehensive descriptions (175-300+ chars, well above the 10-1024 baseline), explicit input and output schemas defined via Zod, and clear parameter documentation. Tool names follow the verb-noun pattern (get_*, convert_*). Both tools are annotated with tool annotations (readOnlyHint, destructiveHint, idempotentHint). The primary gaps are: (1) output schema documentation could be slightly more explicit in tool registration (though it is defined in the code), and (2) error handling guidance in descriptions could be more actionable for LLM recovery.

• Add explicit outputSchema to both server.registerTool() calls. Example: `outputSchema: getCurrentDateTimeOutput` for get_current_datetime. This ensures LLMs know what fields to expect and plan downstream calls correctly.
• Enhance error descriptions with recovery guidance. For get_current_datetime, add: 'If remote provider fails, the tool will fall back to the local system clock. Check the `provider` field in the response to confirm which was used.' For convert_timezone, add: 'Invalid timezone names are the most common error, use IANA identifiers like UTC, Europe/Berlin, America/New_York.'
• Refactor the 'format' parameter description. Move the token list (YYYY, MM, DD, etc.) to an enum constraint or a separate 'format_tokens' discovery tool. Current prose description is 300+ chars and risks LLMs treating examples as exhaustive rather than suggestive.
• Add per-parameter examples in enum form rather than prose. For 'provider' enum, the current constraint ['local', 'remote'] is good; the description should not redundantly explain the same values.
• Consider a separate discovery tool (get_format_tokens, describe_timezone_database) so LLMs can explore valid tokens and timezones without bloating tool descriptions. This aligns with the pattern:discovery-tool.

Inferred effective spec: 2025-06-18+.

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