AI
Plugins and skills
Plugins and skills that teach AI coding assistants .NET work: EF Core, testing, MSBuild, diagnostics, upgrades and more. Collected every morning from selected GitHub repositories; each one is reviewed and summed up in a sentence before it is listed.
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migrate-xunit-to-mstest Official
Has the assistant convert xUnit tests to MSTest v4, applying fixture, Owner, cancellation and parallelization mappings, then build and run the tests to confirm the results.
Install for Claude Code With the plugin/plugin marketplace add dotnet/skillsOn its own/plugin install dotnet-test-migration@dotnet-agent-skillsnpx skills add dotnet/skills --skill migrate-xunit-to-mstest -a claude-code -
migrate-xunit-to-xunit-v3 Official
Has the assistant move .NET test projects from xUnit.net v2 to xunit.v3 and fix v3 breaks such as packages, runner, TFM and async void tests.
Install for Claude Code With the plugin/plugin marketplace add dotnet/skillsOn its own/plugin install dotnet-test-migration@dotnet-agent-skillsnpx skills add dotnet/skills --skill migrate-xunit-to-xunit-v3 -a claude-code -
akka-net-testing-patterns
Has the assistant write Akka.NET actor tests with Akka.Hosting.TestKit, covering DI fakes, TestProbes and persistence tests.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill akka-net-testing-patterns -a claude-code -
aspire-integration-testing
Has the assistant write xUnit integration tests against real Aspire-hosted infrastructure, with fixture lifecycle and runtime endpoint discovery.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill aspire-integration-testing -a claude-code -
crap-analysis
Has the assistant set up OpenCover coverage collection with a runsettings file and rank methods by CRAP score to find risky code.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill crap-analysis -a claude-code -
cscheck
Has the assistant write property-based, model-based and stateful CsCheck tests for C# code, and replay generated failing cases.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill cscheck -a claude-code -
mailpit-integration
Has the assistant capture outgoing emails with Mailpit in .NET Aspire and verify delivery in integration tests.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill mailpit-integration -a claude-code -
playwright-blazor-testing
Has the assistant write Playwright UI tests for Blazor Server and WebAssembly apps, with Blazor-specific waits and error UI checks.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill playwright-blazor-testing -a claude-code -
snapshot-testing
Has the assistant write Verify snapshot tests for API surfaces, HTTP responses and rendered emails, catching unintended output changes against approved baselines.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill snapshot-testing -a claude-code -
testcontainers-integration-tests
Has the assistant write xUnit integration tests against real databases, Redis and message queues in Testcontainers instead of mocks.
Install for Claude Code With the plugin/plugin marketplace add Aaronontheweb/dotnet-skillsOn its own/plugin install dotnet-skills@dotnet-skillsnpx skills add Aaronontheweb/dotnet-skills --skill testcontainers-integration-tests -a claude-code