Critical failures across all dimensions. Tools are registered with Zod schemas but lack the LLM-facing documentation required for agent selection and safe execution. No error handling, no output schema documentation, no security considerations. This server is non-functional for agent use.

• Add a non-empty description to each tool (10 - 1024 chars). Example for add-todo: 'Creates a new todo item with a name and optional description. Returns the created todo ID and confirmation message.'
• Add descriptions to all parameters. Example: 'name' → 'The title of the todo item (1-200 characters, required)'; 'id' → 'The numeric ID of the todo to remove (must exist)'.
• Document the output schema for each tool. Specify what fields are returned (e.g., todo_id, created_at, status) and their types so agents can chain calls.
• Implement actual state management (in-memory array or file-based store) instead of mock responses. Tools should validate inputs and return real results or actionable errors.
• Add a confirm_remove_todo tool or dry-run parameter to remove-todo to prevent accidental deletion by agents.