.NET agent skills, page 3

Attempts one alternative fix for a bug, runs the given test command against it and reports what happened, always differing from existing PR fixes.

dotnet/maui

Confirms that newly added tests actually fail without the fix, auto-detecting UI, device, unit or XAML tests and running the matching runner.

dotnet/maui

Writes UI tests that reproduce a GitHub issue in .NET MAUI and keeps iterating until the tests actually fail, proving they catch the bug.

dotnet/maui

Writes a paired .xaml and .xaml.cs unit test for a .NET MAUI issue that is about XAML behavior itself, such as parsing, XamlC output or generated code.

dotnet/maui

Guides technology selection and implementation of AI and ML features in .NET 8+ applications using ML.NET, Microsoft.Extensions.AI (MEAI), Microsoft Agent Framework (MAF), GitHub Copilot SDK, ONNX…

dotnet/skills

Refactors C# and .NET code without changing behavior, using binding-aware edits plus a build and tests, and separating out or declining anything that alters behavior.

dotnet/skills

Diagnoses and fixes .NET MAUI development environments by checking the .NET SDK, workloads, JDK, Android SDK, Xcode and Windows SDK against requirements read from NuGet.

dotnet/skills

Helps write, review and debug .NET declarations that call native C and C++ libraries, covering signatures, string marshalling, memory lifetime and SafeHandle.

dotnet/skills

Diagnoses and fixes skills in the dotnet/skills repository that lose to their own baseline, fail to activate, time out, or return "no credible improvement".

dotnet/skills

Guidance for .NET MAUI XAML and C data bindings — compiled bindings, INotifyPropertyChanged / ObservableObject, value converters, binding modes, multi-binding, relative bindings, fallbacks, and MVVM…

dotnet/skills

Guidance for configuring dependency injection in .NET MAUI apps — service registration in MauiProgram.cs, lifetime selection (Singleton / Transient / Scoped), constructor injection, Shell navigation…

dotnet/skills

.NET MAUI safe area and edge-to-edge layout guidance for .NET 10+.

dotnet/skills

Guide for theming .NET MAUI apps — light/dark mode via AppThemeBinding, ResourceDictionary theme switching, DynamicResource bindings, system theme detection, and user theme preferences.

dotnet/skills

Migrate a .NET 10 project or solution to .NET 11 and resolve all breaking changes.

dotnet/skills

Convert .NET tests from NUnit 3/4 to MSTest v4 while preserving VSTest or MTP.

dotnet/skills

Convert .NET tests from xUnit.net v2/v3 to MSTest v4 while preserving VSTest or MTP.

dotnet/skills

Identify a .NET project's test platform, framework, command mode, and SDK-style vs classic project system.

dotnet/skills

ALWAYS USE when asked to fix, rewrite, update, improve, modernize, show corrected code for, or explain existing MSTest tests or MSTest-specific configuration.

dotnet/skills

Stack Trace Crash Analysis for dd-trace-dotnet. An agent skill from DataDog/dd-trace-dotnet.

DataDog/dd-trace-dotnet

Guides creation and modification of ASP.NET Core Web API endpoints with correct HTTP semantics, OpenAPI metadata, and error handling.

dotnet/skills

Create a new ASP.NET Core web application or web site using Blazor.

dotnet/skills

Refreshes an existing .NET release-notes milestone branch set incrementally, regenerating data only when the preview moved and keeping human edits and review replies.

dotnet/core

Builds and runs the code snippets behind .NET release-note features against the exact milestone SDK, and records what must change to move maintained samples to a new preview.

dotnet/core

Guide developers through capturing diagnostic artifacts to diagnose production .NET performance issues.

dotnet/skills

Analyze assertion quality, depth, variety, and false confidence in existing tests.

dotnet/skills

Establish MSBuild/.NET build performance baselines before optimizing.

dotnet/skills

Diagnoses .NET Framework CLR activation issues using CLR activation logs (CLRLoad logs) produced by mscoree.dll.

dotnet/skills

Guides conversion of a pre-.NET 8 Blazor Server app into a .NET 8+ Blazor Web App.

dotnet/skills

Choosing an MSBuild CopyToOutputDirectory / CopyToPublishDirectory mode: Never, PreserveNewest, Always, and IfDifferent (MSBuild 17.13+), plus $(SkipUnchangedFilesOnCopyAlways).

dotnet/skills

Calculates CRAP (Change Risk Anti-Patterns) for a named .NET method, class, or file.

dotnet/skills

Generate or scaffold ASP.NET Core code — Razor Pages, Blazor components, MVC controllers, views, and Minimal API endpoints — without using ASP.NET Core CLI scaffolding/code-generation tools.

dotnet/skills

Scaffolds new agent skills for the dotnet/skills repository.

dotnet/skills

ACTIVATION PREREQUISITE: the request or discovered target must explicitly identify C, .NET, .cs, or .csproj; otherwise stay dormant without invoking this skill.

dotnet/skills

Detects duplicate boilerplate, copy-paste tests, and structural maintainability issues across .NET test suites.

dotnet/skills

DO NOT USE when the target already consumes an injected interface or built-in abstraction such as IFileSystem or TimeProvider, even if the request says "generate a wrapper"; no new wrapper is needed.

dotnet/skills

Migrate .NET test projects from xUnit.net v2 to xunit.v3 and fix v3 breaks.

dotnet/skills

Set up or recover MTP hot reload for a long-lived console-host edit/re-run loop in a Microsoft Testing Platform project.

dotnet/skills

ALWAYS USE before running .NET tests or answering with a test command or flags.

dotnet/skills

MUST USE when an existing .NET test project was excluded from a .slnf/CI solution filter, disappeared from .sln/.slnx discovery, or lost its production ProjectReference; also for requests to set up…

dotnet/skills

Guides creation and validation of custom dotnet new templates from existing projects.

dotnet/skills

Compares two or more dotnet new templates side by side to help users choose between them based on parameters, feature support, frameworks, and classifications.

dotnet/skills

Helps find, inspect, and compare (at a high level) .NET project templates.

dotnet/skills

Creates .NET projects from templates with validated parameters, smart defaults, Central Package Management adaptation, and latest NuGet version resolution.

dotnet/skills

Validates custom dotnet new templates for correctness before publishing.

dotnet/skills

MUST USE for C/.NET deterministic tests that require the smallest production seam for DateTime/Task.Delay/File/Environment/Guid/Random, static API preservation, nested/parallel overrides, or no real…

dotnet/skills

Add, configure, or review Ignite UI for Blazor Lite component support in Blazor applications.

dotnet/skills

Add, review, or fix JavaScript interop in Blazor components.

dotnet/skills

Design, implement, optimize, and review SIMD code in .NET. An agent skill from dotnet/skills.

dotnet/skills