| name | async |
| description | Guide for async and concurrent Rust programming. Use when writing async functions, using tokio, spawning threads, working with channels, or sharing state with Arc/Mutex. |
Rust Async and Concurrency
Async functions, tokio runtime, streams, threads, channels, and shared state.
When to Use This Skill
Activate when:
- Writing async functions with tokio
- Running concurrent async operations with join! or spawn
- Processing async streams
- Spawning OS threads
- Using channels (mpsc) for message passing
- Sharing state with Arc and Mutex
For async patterns, concurrency primitives, and shared state examples, see references/async.md.
Anti-fabrication
This skill follows core:anti-fabrication. Every claim about async/await behavior, the
tokio runtime, and std concurrency primitives is verified against the Async Book and tokio
documentation cited in sources.md — not inferred from generic familiarity with the
ecosystem. Before asserting a tokio API or concurrency behavior this skill and its
references do not cover, check the installed crate version's docs.rs page rather than
guessing.
