Rust Async Patterns skill: what it does and how to install it

What it does. Provides production patterns and worked examples for async Rust with Tokio, including futures, tasks, channels, streams, error handling, cancellation and tracing. It covers concurrency practices such as tokio::select!, JoinSet, bounded task spawning and avoiding blocking operations or locks across awaits.

When to use it. For building async Rust applications and concurrent network services, handling or debugging async errors, using Tokio for I/O, and improving async performance.