菜单
Find and fix async/await anti-patterns in C# code — blocking calls, async void, missing cancellation, fire-and-forget. Use when reviewing async code, diagnosing deadlocks or thread-pool starvation, or when the user asks about async correctness.
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基于 SOC 职业分类
Add a new Minimal API endpoint following this solution's conventions. Use when the user asks to add a route, endpoint, or new API operation (GET/POST/PUT/DELETE).
Plan and execute an upgrade of a project or solution to a newer .NET version (e.g. .NET 8 to .NET 10). Use when the user asks to upgrade, migrate, or modernize the target framework.
Create, review, and apply an EF Core migration safely. Use when the user wants to add a migration, change the database schema, add/modify entity properties, or asks about database changes.
Generate an xUnit test suite for a class, endpoint, or file. Use when the user asks for tests, test coverage, or to test something they just wrote.
Audit NuGet dependencies for vulnerabilities, deprecated packages, and outdated versions across the solution. Use when the user asks about package health, security vulnerabilities in dependencies, or updating packages.
Summarize uncommitted changes and flag risks. Use when the user asks what changed, wants a commit message, or asks to review their diff.
| name | async-hygiene |
| description | Find and fix async/await anti-patterns in C# code — blocking calls, async void, missing cancellation, fire-and-forget. Use when reviewing async code, diagnosing deadlocks or thread-pool starvation, or when the user asks about async correctness. |
Scan the target scope (default: whole solution) for each anti-pattern, in this order, and fix with the standard remedy:
| Anti-pattern | Find | Fix |
|---|---|---|
| Sync-over-async | .Result, .Wait(), .GetAwaiter().GetResult() | Make the caller async and await |
async void | any non-event-handler | Return Task |
| Missing CancellationToken | async public methods without a token parameter | Add CancellationToken cancellationToken = default and thread it through |
| Fire-and-forget | unawaited Task-returning calls | Await, or route through a background service with error handling |
Task.Run in ASP.NET request path | Task.Run( in Api project | Remove — the request is already on a thread-pool thread |
| Async lambda passed to sync delegate | async lambda to Action<> | Change delegate type or restructure |
Unnecessary async/await wrapper | method whose only await is the final return | Return the Task directly (unless in a using/try) |
| Blocking I/O in async method | File.ReadAllText, Thread.Sleep inside async | Use async equivalents (ReadAllTextAsync, Task.Delay) |
Process: grep for each pattern → read the surrounding code (some hits are legitimate, e.g. Main, console tools) → fix true positives → dotnet build → report a table of what changed and any hits deliberately left alone with reasoning.
