C# Async skill: what it does and how to install it

What it does. Applies C# async programming practices when writing or reviewing code, including naming and return types, exception handling, cancellation and task coordination. It also covers async streams and the task-based asynchronous pattern for public APIs.

When to use it. When implementing or reviewing asynchronous C# code, especially to find blocking calls, unawaited tasks or inappropriate async void methods.