Single tool 'fill_timesheet' has a reasonable description (89 chars) but critical schema and parameter deficiencies. Input schema visible in code shows three string parameters with defaults but NO type declarations in the schema definition itself, only inferred from Python type hints. Parameters lack formal constraints (enums, patterns, ranges). No output schema documented. Tool performs a destructive/write operation (fills timesheet) but lacks error handling guidance, confirmation patterns, or recovery instructions. No tool annotations (destructiveHint). The resource endpoint for status tracking is present but undocumented in tool output schema.

• Add formal JSON Schema type declarations to all parameters: week_start_date (string, format: date or enum of relative dates like 'this week', 'next week'), days_off (string with pattern or enum), time_types (enum of valid Workday time type codes).
• Document output schema explicitly: return a structured object with {request_id: string, status: string, status_uri: string} instead of a plain message string.
• Add destructiveHint: true and idempotentHint: false to tool annotations. Include a warning in the description: 'This tool modifies your Workday timesheet. Changes are irreversible.'
• Implement a dry-run parameter (boolean, default false) to preview changes before committing. Or add a separate confirm_timesheet_fill tool for multi-step confirmation.
• Enhance error handling: return structured errors with actionable recovery guidance. E.g., 'Invalid time_type: KITN-9999. Valid codes: Admin, KITN-1937, KITN-2048. Retry with a valid code.' instead of generic exception messages.

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

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