This is a collection of template/example MCP servers demonstrating auth patterns, not a production-grade server. Tool definitions are minimal: 11 tools across multiple files with inconsistent quality. Most descriptions are under 50 chars (well below the 194-char baseline). Parameters lack detailed constraints. No output schemas documented. Error handling is absent or minimal. The 'echo' and 'hello' tools are trivial examples. Scope-gated tools (todo:read, todo:write) show intent but lack enforcement visibility in the code. No evidence of pagination, structured output, or recovery guidance.

• Add output schemas to every tool. Document return fields, types, and what data is available for chaining. E.g., create_todo should return {todo_id, text, done, created_at}.
• Expand descriptions to 100-200 chars. Include WHEN to use the tool and what it returns. E.g., 'Create a new todo item. Returns the created todo with ID for use in update/delete operations. Requires: todo:write scope.'
• Implement and verify scope enforcement in all auth-gated tools. Replace TODO comments with actual token validation. Return clear errors: 'Insufficient permissions: todo:write scope required.'
• Add pagination to list_todos and list_greetings. Accept limit (1-100, default 20) and offset/cursor parameters. Return total_count and next_cursor for large datasets.
• Add error handling with recovery guidance. E.g., delete_todo should return 'Todo not found. Call list_todos() to see available IDs.' for 404 cases.