Server defines 13 tools with explicit Zod schemas and descriptions. Naming is verb-first and consistent (list_, create_, cancel_, update_, get_, send_). Most tools have moderate descriptions (50-200 chars). However, schema completeness varies: several parameters lack descriptions, return types are not documented, and error handling guidance is minimal. Tool composition is reasonable, each tool has a single responsibility, but output documentation is weak, making it harder for LLMs to plan multi-step workflows. The server uses the Smithery SDK for both STDIO and HTTP transports; configuration injection for access tokens is correct. Overall, this is a solid mid-tier server with room for improvement in output documentation and error guidance.

• Document return types for all tools. Add a 'Returns' section to each tool description (or in code comments) explaining what fields the API returns. Example: 'Returns: { data: { id, title, address, channels, latitude, longitude }, total: number }'.
• Add error documentation and recovery hints. For hostex_create_reservation, document: 'May fail with invalid_dates (check-in/out format), insufficient_availability, or duplicate_reservation. Try listing availabilities first to verify dates.'
• Implement a dry-run or confirmation flow for hostex_cancel_reservation. Either add a 'confirm: boolean' parameter with default false, or return a confirmation code that must be passed back: 'First call returns code XYZ; pass it to a second call to confirm cancellation.'
• Add per-item error reporting for batch operations. If hostex_update_availabilities fails on property 3 of 5, return {success: [1,2,4,5], failed: [{property_id: 3, error: 'not found'}]} instead of a blanket failure.
• Complete parameter descriptions. Review hostex_list_room_types, hostex_list_conversations, hostex_get_custom_fields and add descriptions for any missing params.
• Add result pagination documentation. hostex_list_properties, hostex_list_room_types, hostex_list_reservations all accept offset/limit. Document max results and whether there's a next_page indicator or total count in the response.
• Consider returning contextual references in responses. When hostex_create_reservation succeeds, include the new reservation_code and reservation_id so the agent can immediately reference it in follow-up calls without a lookup.