Testing & QA · By dotnet

Reviews the tests added in a pull request for fix coverage, quality, edge cases and test type, and recommends lighter test types where they would do.

dotnet/maui

Statically pairs source files with test files to list code that no test references, using Roslyn for C# or tree-sitter for many languages, with no build.

dotnet/skills

Activate this skill when BenchmarkDotNet (BDN) is involved in the task — creating, running, configuring, or reviewing BDN benchmarks.

dotnet/skills

Interprets pinned managed benchmark evidence for a dotnet/maui pull request and writes a narrative for the performance review workflow, without running or publishing anything.

dotnet/maui

Investigate and triage CI failures for dotnet/macios from Azure DevOps build URLs.

dotnet/macios

A skill your agent uses when fixing a Roslynator analyzer false positive or false negative, RCS, RR, or CS/RCF regression, incorrect diagnostic reporting, or bug report citing a specific rule id —…

dotnet/roslynator

Investigate and fix flaky/random CI test failures in dotnet/macios.

dotnet/macios

Adds dotnet/maui-specific context for investigating failing PR checks and broken nightly builds: pipelines, Helix logs, binlogs and merge-readiness verdicts.

dotnet/maui

A skill your agent uses to triage an incoming issue on the EF Core repo (bug report or feature request).

dotnet/efcore

Checks a pull request for lines that undo a recent bug fix by comparing what the PR removes with what labeled bug-fix PRs added to the same files.

dotnet/maui

Post-mortem analysis of CI failures across recent PRs in dotnet/macios.

dotnet/macios

Interprets .NET coverage reports to explain line and branch gaps, target arithmetic and, on request, CRAP-based risk hotspots, without rerunning tests.

dotnet/skills

Splits a slow .NET MAUI UI-test category into method-level CI shards sized from historical Azure DevOps timings so each job fits a target duration.

dotnet/maui

Reads CI results for a dotnet/maui pull request and reports in one short comment whether the failures relate to the PR or to the base branch.

dotnet/maui

Builds and runs .NET MAUI device tests locally on iOS simulators, MacCatalyst, Android emulators or Windows, with optional category filtering.

dotnet/maui

Submits .NET MAUI unit tests to Helix queues from a local machine and monitors job status and per-work-item logs with PowerShell scripts.

dotnet/maui

Builds and packs .NET MAUI, installs the local workloads and runs integration tests for templates, samples and end-to-end scenarios by category.

dotnet/maui

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

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

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

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

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

dotnet/skills

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

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

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

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

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…

dotnet/skills

Use this skill before answering or editing whenever an MSTest v1/v2 project is being upgraded or repaired for v3.

dotnet/skills

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

ALWAYS USE for test work that requires changes: write, add, generate, repair, or strengthen tests for existing code in xUnit, MSTest, NUnit, pytest, Vitest/Jest, Go, or another framework.

dotnet/skills