Server has 9 tools with complete JSON Schema definitions and descriptions in Ukrainian. All tools have proper type definitions and required field declarations. However, descriptions are minimal (10-50 chars), lack actionable context for LLM selection, and omit guidance on when to use each tool vs. alternatives. Parameter descriptions are present but generic. No output schemas documented. Error handling not visible in tool definitions. Tool naming follows verb_noun pattern (get_, create_, update_, delete_) which is correct, but descriptions do not explain dependencies, prerequisites, or recovery paths. STDIO transport caps protocol readiness at 50.

• Expand tool descriptions to 50-200 chars. Example: 'promua_get_products' → 'Retrieve a paginated list of products from your Prom.ua store. Filter by category, group, or search term. Use this to browse inventory before creating or updating products. Returns product IDs, names, prices, and availability status.'
• Document output schemas for all tools. For create_product, specify: returns {product_id: string, name: string, price: number, created_at: ISO8601}. For list tools, include pagination fields: {products: [...], total: number, limit: number, offset: number}.
• Add error handling guidance to tool descriptions. E.g., promua_delete_product: 'Permanently deletes a product. This action cannot be undone. Returns error if product not found or user lacks permission. Suggest confirmation before calling.'
• Implement a confirmation pattern for destructive operations. Add a 'confirm' boolean parameter to promua_delete_product, or create a separate 'confirm_delete_product' tool that requires explicit approval.
• Add min/max constraints to numeric parameters. E.g., limit: {type: 'integer', minimum: 1, maximum: 100, description: '...'}. Add pattern or enum constraints to string parameters like status and currency.