Async Patterns

Overview

Proper async/await usage is critical for UI responsiveness and application stability. This skill covers patterns specific to WPF desktop applications.

Definition of Done (DoD)

• All async methods return Task or Task<T> (never async void except event handlers)
• Long-running operations support CancellationToken
• No .Result or .Wait() calls on UI thread
• Fire-and-forget tasks are handled with proper error logging
• Async commands show loading state and handle exceptions

Core Rules

1. Never Block the UI Thread