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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assertion-quality Official
Has the assistant measure weak, repetitive or misleading assertions in existing tests and report them, leaving fixes to the developer.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill assertion-quality -a codex -
code-testing Official
Has the assistant write, repair and strengthen .NET tests, scoping focused versus broad work and validating results in configured test reports.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill code-testing -a codex -
crap-score Official
Has the assistant calculate CRAP scores for a named method, class or file and suggest which tests to write first.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill crap-score -a codex -
detect-static-dependencies Official
Has the assistant locate hard-to-test static calls such as DateTime.Now, File, Environment, HttpClient and Process in C# code and rank them by frequency and file.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill detect-static-dependencies -a codex -
generate-testability-wrappers Official
Has the assistant generate wrapper interfaces, default implementations and DI registrations for static dependencies like time, file system or Environment when no injectable seam exists.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill generate-testability-wrappers -a codex -
grade-tests Official
Has the assistant grade the test methods you name for readiness and A-F quality in a read-only, PR-comment-ready report.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill grade-tests -a codex -
migrate-static-to-wrapper Official
Has the assistant move DateTime, File and Environment calls onto existing abstractions like TimeProvider and IFileSystem so tests can use fakes in their place.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill migrate-static-to-wrapper -a codex -
mtp-hot-reload Official
Has the assistant set up a persistent MTP dotnet run console host that reruns tests after edits, handling filters, restarts and VSTest fallback.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill mtp-hot-reload -a codex -
platform-detection Official
Has the assistant determine whether a .NET project runs tests on VSTest or Microsoft.Testing.Platform and which framework it uses, by resolving global.json, project and props precedence.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill platform-detection -a codex -
scaffold-dotnet-test-project Official
Has the assistant register a .NET test project in the solution or filter CI uses and add any missing production ProjectReference, leaving working projects untouched.
Install for Codex / ChatGPT With the plugincodex plugin marketplace add dotnet/skillsThen open /plugins in Codex and install dotnet-test.
On its ownnpx skills add dotnet/skills --skill scaffold-dotnet-test-project -a codex