Quackback's MCP tool definitions are severely underdeveloped. Of 8 tools, only 1 (close_conversation) has a visible input schema in the source code. The remaining 7 tools have minimal descriptions (under 50 chars) with no detectable input schemas, parameter types, or output documentation. Tool names are action-oriented (search, set_attribute, create_ticket, etc.) which is correct, but lack the descriptor detail needed for LLM disambiguation. Two tools (search and search_knowledge) appear to be duplicates serving the same function, violating the single-responsibility principle. No error handling guidance is visible. No pagination, no structured output documentation, no parameter constraints. This server appears to be a stub or very early-stage implementation rather than a production-ready agent interface.

• Expand all tool descriptions to 50 - 200 characters, following the pattern: 'WHAT it does (verb), WHEN to call it (context), WHAT it returns (summary).' Example: 'Search the knowledge base for answers to customer questions. Returns a ranked list of relevant articles with snippets. Use before creating a ticket to check if the answer already exists.'
• For every tool, define a complete input JSON Schema with type, required fields, and per-parameter descriptions. Use close_conversation as a template and expand it.
• Add per-parameter descriptions to close_conversation's reason field, e.g., 'The reason for closing (string, max 255 chars). Examples: resolved, customer-satisfied, duplicate, transferred-to-support.'
• Document output schemas for all tools. Specify returned fields, types, and format (e.g., 'Returns { ticket_id: string, created_at: ISO-8601-datetime, status: 'open'|'closed' }'). Include IDs needed for chaining (e.g., if create_ticket returns ticket_id, downstream tools like add_comment must accept ticket_id).
• Consolidate search and search_knowledge into a single search tool with an optional legacy_mode parameter. Or, rename search_knowledge to search_historical_knowledge to clarify its scope.
• Add explicit error handling to descriptions. E.g., 'create_ticket: If the customer email is not found, returns error 'customer_not_found' with available customer IDs. Suggest search_customers() first.'
• For write tools (set_attribute, create_ticket, etc.), add to description: 'This call modifies state and cannot be safely retried without duplicate detection.' This tells the LLM to be cautious.