This server demonstrates above-average tool definition quality with consistent naming, detailed descriptions, and complete input schemas across all three tools. All tools follow verb_noun naming conventions (is_public_holiday, get_school_term, next_business_day). Descriptions are detailed (180-220 chars each), well above the 10-1024 char baseline, and include context about what each tool does and what it returns. All parameters have type definitions and descriptions. However, output schemas are documented only in text form within the description; there is no formal JSON Schema output documentation in the tool registration. Error handling is basic and lacks recovery guidance (pattern:recovery-guide). No tool annotations (readOnlyHint/destructiveHint/idempotentHint) are present despite all tools being READ_ONLY operations.

• Add formal JSON Schema output documentation to each tool's registration. Example for is_public_holiday: { type: 'object', properties: { summary: { type: 'string' }, query: { type: 'object', properties: { date, day_of_week, region } }, result: { type: 'object', properties: { is_public_holiday: 'boolean', holiday: { type: 'object OR null', properties: { name, date, type, region } }, holidays_for_region: { type: 'array' } } } } }
• Add readOnlyHint: true to all three tool definitions to declare their read-only safety.
• Enhance error messages with actionable recovery. When date validation fails, return: 'Invalid date format. Expected YYYY-MM-DD, got "<user_input>". Example: 2026-01-15' When region validation fails, return: 'Invalid region "<user_input>". Valid regions are: NZ, VIC, NSW, QLD, WA, SA, TAS, NT, ACT'
• Rename 'next_business_day' to 'get_next_business_day' for consistency with the verb_noun naming convention.