Server has well-structured tool definitions with consistent naming (verb_noun pattern), comprehensive parameter descriptions, and proper Zod schema validation. All 7 tools are explicitly registered with descriptions and input schemas. However, output schemas are not documented, LLMs cannot predict response structure. Error handling exists but lacks recovery guidance. Parameter descriptions are solid (avg 60+ chars) but some lack format constraints (e.g., ISO-8601 timestamps, enum values for status filters). No tool annotations (readOnlyHint/destructiveHint) despite clear risk levels. Missing pagination guidance for list tools.

• Document output schemas for all tools. Add a 'returns' field to each tool registration describing the structure of okResult() responses (e.g., 'Returns {suppliers: [{id, name, location, orderable}]}').
• Add tool annotations: mark place_order with destructiveHint=true, cancel_order with destructiveHint=true, all read-only tools with readOnlyHint=true. This guides agent planning and prevents accidental misuse.
• Add pagination to list_suppliers, list_my_orders, and get_menu: include 'limit' (default 20, max 100) and 'offset' parameters. Return a 'total' count in responses so agents know if more results exist.
• Convert 'status' parameter in list_my_orders to an enum: z.enum(['ordered', 'cancelled', 'pending', 'delivered']). Document valid values in description.
• Enhance error handling: wrap errorResult() to include recovery hints. E.g., 'Session not found. Run auth command to initialize.' or 'Supplier not found. Call list_suppliers() to see available options.'