csharp-async

name	csharp-async
description	Teach and review C# async programming. Use for async/await, Task, generic Task results, ValueTask, cancellation tokens, async tests, fire-and-forget tasks, sync-over-async, deadlocks, I/O-bound work, background work, and async performance or correctness issues.
metadata	{"short-description":"C# async, Task, and cancellation help"}

C# Async

Use $csharp-tutor mode=async.

Treat all user text after $csharp-async as the async concept, code, bug, test, or design question. Use the main csharp-tutor skill as the source of truth.

Load these csharp-tutor references when useful:

• references/skill-routing.md
• references/async-guidance.md
• references/modern-dotnet-patterns.md
• references/common-csharp-pitfalls.md
• references/testing-guidance.md
• references/performance-review-map.md
• references/official-sources.md

Default to beginner-friendly explanations. Explain what Task, async, and await mean before discussing advanced concurrency details unless the user asks for depth.

Standalone Guidance

• Core rule: Keep async I/O async end-to-end and pass cancellation through the call chain.
• Avoid: Blocking on tasks with .Result or .Wait().
• Minimal example: await service.LoadAsync(id, cancellationToken);