AI
Plugins and skills

21plugins

248skills

4assistants

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.

As of Nov 3 Look at the repository before you install: skills instruct the assistant, hooks and MCP servers run commands on your machine. This list is not a security review.

migrate-mstest-v3-to-v4 Official
Has the assistant find and fix source-incompatible and behavioral changes when moving a test project from MSTest v3 to v4, including discovery failures after the upgrade.

Testing dotnet/skills ★ 5.8k in the dotnet-test-migration plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-test-migration@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-mstest-v3-to-v4 -a claude-code
migrate-nunit-to-mstest Official
Has the assistant convert NUnit 3/4 tests to MSTest v4 while keeping the VSTest or MTP runner, then build and run them to confirm the same cases are discovered and pass.

Testing dotnet/skills ★ 5.8k in the dotnet-test-migration plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-test-migration@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-nunit-to-mstest -a claude-code
migrate-vstest-to-mtp Official
Has the assistant move .NET test projects from VSTest to Microsoft.Testing.Platform, translating dotnet test arguments and CI steps to MTP syntax.

Testing dotnet/skills ★ 5.8k in the dotnet-test-migration plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-test-migration@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-vstest-to-mtp -a claude-code
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.

Testing dotnet/skills ★ 5.8k in the dotnet-test-migration plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-test-migration@dotnet-agent-skills
On its own
npx 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.

Testing dotnet/skills ★ 5.8k in the dotnet-test-migration plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-test-migration@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-xunit-to-xunit-v3 -a claude-code
dotnet-aot-compat Official
Has the assistant resolve IL trim and AOT analyzer warnings such as IL2026 and IL2070 with annotations, making the project Native AOT compatible.

Build and packages dotnet/skills ★ 5.8k in the dotnet-upgrade plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-upgrade@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill dotnet-aot-compat -a claude-code
migrate-dotnet10-to-dotnet11 Official
Has the assistant move a .NET 10 project to net11.0 step by step, fixing build errors and breaking changes from the runtime, C# 15 compiler and EF Core 11.

Upgrades and migration dotnet/skills ★ 5.8k in the dotnet-upgrade plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-upgrade@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-dotnet10-to-dotnet11 -a claude-code
migrate-dotnet8-to-dotnet9 Official
Has the assistant move a .NET 8 project to net9.0 and fix breaking changes such as BinaryFormatter removal, SYSLIB warnings and EF Core 9 changes.

Upgrades and migration dotnet/skills ★ 5.8k in the dotnet-upgrade plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-upgrade@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-dotnet8-to-dotnet9 -a claude-code
migrate-dotnet9-to-dotnet10 Official
Has the assistant move a .NET 9 project to net10.0 and step by step fix build errors, behavioral changes and obsoletion warnings.

Upgrades and migration dotnet/skills ★ 5.8k in the dotnet-upgrade plugin MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-upgrade@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-dotnet9-to-dotnet10 -a claude-code
migrate-nullable-references Official
Has the assistant enable nullable reference types in an existing C# project, resolve CS86xx warnings step by step, and annotate public APIs with accurate nullability.

C# and language dotnet/skills ★ 5.8k in the dotnet-upgrade plugin includes scripts MIT

Install for Claude Code With the plugin
/plugin marketplace add dotnet/skills

/plugin install dotnet-upgrade@dotnet-agent-skills
On its own
npx skills add dotnet/skills --skill migrate-nullable-references -a claude-code

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Plugins and skills