Three tools with basic schemas and descriptions, but significant gaps in parameter documentation and output schema clarity. Tool names follow verb_noun convention (good). Descriptions exist but are minimal (10-50 chars, below the 50-200 char LLM-optimized baseline). Input schemas present for getTimeInTimezone but lack descriptions for all parameters. No documented output schemas. No error handling guidance. No tool annotations. Logging infrastructure present but not integrated into tool responses.

• Expand tool descriptions to 50-200 characters. Example: 'getCurrentTime' → 'Get the current time in both UTC and the machine's local timezone. Use this when you need the present moment; use getTimeInTimezone() to convert to a specific timezone.'
• Document output schemas for each tool. E.g., getCurrentTime returns {utc: string (ISO 8601), local: string, timezone: string}. Include this in the tool definition or a separate schema block.
• Add parameter descriptions for getTimeInTimezone: timezone → 'IANA timezone name (e.g., America/New_York, Asia/Tokyo). Call getSupportedTimezones() to list valid options.'; format → 'Output format: iso (ISO 8601), unix (seconds since epoch), or locale (human-readable in the target timezone).'; hour12 → 'Only applies when format=locale. If true, use 12-hour clock (e.g., 3:45 PM); if false, use 24-hour clock.'
• Add error handling guidance: 'If timezone is invalid, returns error with list of valid timezones. Call getSupportedTimezones() to discover available zones.'
• Add tool annotations to schema: readOnlyHint=true and idempotentHint=true for all three tools to signal safety to LLMs.

Inferred effective spec: <=2025-11-25.

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