Testing & QA · .NET

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

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

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

Agent for diagnosing and fixing flaky terminal UI tests in the Hex1b test suite.

mitchdenny/hex1b

Local bunit documentation reference (latest). An agent skill from olorehq/olore.

olorehq/olore

Quality gates for finishing work in this repository — dead-code cleanup, Roslynator and dotnet format fixes, markdownlint, build, unit tests, documentation, and Obsolete migration shims — with the…

facioquo/stock-indicators-dotnet

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

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

dotnet/skills

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

dotnet/skills

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

dotnet/skills

Defines .NET test strategy and implementation patterns across xUnit v3 (Facts, Theories, fixtures, IAsyncLifetime), integration testing (WebApplicationFactory, Testcontainers), Aspire testing…

novotnyllc/dotnet-artisan

Use this skill before answering, planning, or editing whenever .NET tests or CI are switching from VSTest to Microsoft.Testing.Platform (MTP), or an MTP migration behaves differently.

dotnet/skills

Guidelines for writing unit tests in the Hex1b TUI library. An agent skill from mitchdenny/hex1b.

mitchdenny/hex1b

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

microsoft/testfx

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

microsoft/testfx

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

microsoft/testfx

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…

microsoft/testfx

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…

microsoft/testfx

Mandatory unit-test and code-coverage rules for the .NET agent.

newrelic/newrelic-dotnet-agent

Pseudo-mutation analysis ONLY: answer whether tests would catch a bug if production code changed, which meaningful changes would still pass, or which caller-visible mutations existing assertions…

microsoft/testfx

C and .NET testing patterns with xUnit, FluentAssertions, mocking, integration tests, and test organization best practices.

affaan-m/ECC

F testing patterns with xUnit, FsUnit, Unquote, FsCheck property-based testing, integration tests, and test organization best practices.

affaan-m/ECC

Azure Resource Manager SDK for Microsoft Playwright Testing in .NET.

microsoft/skills

Classifies existing tests by standard traits and reports their distribution.

microsoft/testfx

Test doubles including Fakes (Bogus), Dummies (AutoFixture), Stubs, Spies, and Mocks (NSubstitute).

macalbert/envilder

A skill your agent uses when the user asks to run the full AtomUI regression test suite ("全量回归", "全量测试", "跑全部测试", "full regression").

AtomUI/AtomUI

Provides file paths to language-specific extension files for the code-testing pipeline.

dotnet/skills

Mandatory testing conventions for .NET (xUnit, AwesomeAssertions).

macalbert/envilder

IHttpClientFactory and typed HTTP clients for .NET 10 applications.

codewithmukesh/dotnet-claude-kit

Testing strategy for .NET 10 applications. An agent skill from codewithmukesh/dotnet-claude-kit.

codewithmukesh/dotnet-claude-kit

Test email sending locally using Mailpit with .NET Aspire. An agent skill from Aaronontheweb/dotnet-skills.

Aaronontheweb/dotnet-skills

Write integration tests using TestContainers for .NET with xUnit.

Aaronontheweb/dotnet-skills

Creates an integration testing plan for .NET data access artifacts during Oracle-to-PostgreSQL database migrations.

github/awesome-copilot

Multi-dimensional health assessment for .NET projects with letter grades (A-F) using Roslyn MCP tools.

codewithmukesh/dotnet-claude-kit

Provides file paths to language-specific reference files for the test ANALYSIS skills (assertion-quality, test-anti-patterns, test-gap-analysis, test-smell-detection, test-tagging).

microsoft/testfx

Help users run a local Ethereum dev chain, write integration tests, fork networks, debug transactions, or replace Hardhat/Anvil with Nethereum DevChain (.NET).

Nethereum/Nethereum

This skill should be used when running .NET tests selectively with a build-first, test-targeted workflow.

NikiforovAll/claude-code-rules

Reference data for .NET test framework detection patterns, assertion APIs, skip annotations, setup/teardown methods, and common test smell indicators across MSTest, xUnit, NUnit, and TUnit.

runceel/ReactiveProperty

Quick pragmatic detection-focused review of .NET test code for anti-patterns that undermine reliability and diagnostic value.

runceel/ReactiveProperty

xUnit、FluentAssertions、モッキング、統合テスト、テスト組織のベストプラクティスを使用したCと.NETのテストパターン。

affaan-m/ECC

使用 xUnit、FluentAssertions、模拟、集成测试和测试组织最佳实践的 C 和 .NET 测试模式. An agent skill from affaan-m/ECC.

affaan-m/ECC

Work on the Java port of the V5 standalone schema evaluator (src-java/corvus-json-schema, Maven artifact io.github.corvus-dotnet:corvus-json-schema): loader, compiler, the ASM bytecode generator…

corvus-dotnet/Corvus.JsonSchema

Autonomous iteration loops for .NET: drive a broken build or failing test suite to green with bounded iterations, progress detection, and fail-safe guards that prevent infinite retries and wasted…

codewithmukesh/dotnet-claude-kit

Guided test-driven development workflow for .NET 10 using xUnit v3, WebApplicationFactory, Testcontainers, and Verify snapshots.

codewithmukesh/dotnet-claude-kit

Run a comprehensive 7-phase verification pipeline for .NET projects: build, analyzers, antipattern detection, tests, security, formatting, and diff review.

codewithmukesh/dotnet-claude-kit

Get best practices for TUnit unit testing, including data-driven tests

github/awesome-copilot