mem0-mcp provides 6 well-named tools with complete input schemas and descriptions. Naming follows verb_noun convention (add_memory, search_memories, list_memories, get_memory, update_memory, delete_memory). All tools have descriptions (avg 95 chars) and parameters are typed with descriptions. However, output schemas are not documented, LLMs cannot predict response structure for chaining. Error handling is basic (RuntimeError with API detail extraction) but lacks recovery guidance or categorization. No pagination support despite list_memories accepting top_k. Destructive operations (delete_memory, update_memory) lack confirmation patterns. Parameter descriptions are adequate but could specify constraints (e.g., top_k range, metadata object structure). Overall solid foundation but missing production-grade error handling and output documentation.

• Document output schemas for all tools. Example: add_memory returns {id: string, created_at: ISO8601, user_id: string, agent_id: string, text: string}. This enables LLMs to chain results into subsequent calls.
• Enhance error messages with recovery guidance. Instead of 'mem0 API error (404): not found', return 'Memory not found. Try search_memories() to locate it by content, or list_memories() to see available memories.'
• Add confirmation pattern to delete_memory: return {status: 'pending_confirmation', memory_id: string, preview: string} and require a confirm_delete(memory_id, confirmation_token) call. Prevents accidental deletion.
• Add pagination to list_memories: accept cursor/offset and limit (1-100, default 20), return {memories: [...], next_cursor: string|null, total_count: int}. Prevents context window exhaustion.
• Specify parameter constraints in descriptions: 'top_k: integer, 1-100, default 20' and 'metadata: JSON object with string keys and string/number/boolean values'.