This MCP server registers 10 tools with clear verb-based naming (get_, list_, create_, update_, delete_, enable_). All tools have descriptions and input schemas defined in Zod. Output schemas are documented via Zod type annotations. However, there are notable gaps: (1) several parameter descriptions are either missing or generic; (2) most tools lack explicit error handling guidance; (3) no pagination support on list endpoints despite potentially large result sets; (4) parameter descriptions don't always specify format/constraints (e.g., date format is only in the pattern, not the description text); (5) no tool annotations (readOnlyHint/destructiveHint/idempotentHint) are present despite clear risk stratification (READ_ONLY, WRITE, DESTRUCTIVE). The server demonstrates competent baseline implementation but misses production-grade polish.

• Add tool annotations (destructiveHint, idempotentHint, readOnlyHint) to all tool registrations. Map these from the risk stratification already present in the metadata: delete-day-off and update-product → destructiveHint=true; get-settings, get-product, list-products, list-day-offs → readOnlyHint=true.
• Enhance error handling by wrapping tool implementations in try-catch blocks that return structured error responses. Example: { content: [{ type: 'text', text: 'Error: Could not update waiting time. Ensure the value is a positive integer.' }], isError: true }. Add recovery guidance to error messages.
• Add pagination support to list-products and list-day-offs: introduce 'limit' (default 20, max 100) and 'offset' (default 0) parameters; return a 'total' count field alongside the items array.
• Update parameter descriptions to include explicit constraint statements. For add-day-off: 'The date in YYYY-MM-DD format (e.g., 2024-12-25). Must match pattern: YYYY-MM-DD.'
• Document update-product semantics: clarify that the tool performs a partial update (only provided fields are changed) and that the id parameter is required. Add note: 'Only the fields you wish to change need to be provided.'
• Consider adding a batch operation tool (e.g., update-products with array input) for agents that need to update multiple products in a loop, to reduce token overhead and latency.
• Add dependency hints in descriptions. For example, in create-product, note: 'Ensure the categoryId exists before calling this tool; use list-products or the category API if needed.'