AI
Plugins and skills

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.

• playwright-ci-caching

  Has the assistant cache Playwright browser binaries in GitHub Actions and Azure DevOps, keyed by the Microsoft.Playwright version in Directory.Packages.props.

  Build and packages Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill playwright-ci-caching -a codexCopy
• r3-reactive-extensions

  Has the assistant build event streams with R3, applying its OnErrorResume error contract and its differences from System.Reactive correctly.

  C# and language Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill r3-reactive-extensions -a codexCopy
• sdk-container-publishing

  Has the assistant build a .NET service container image with dotnet publish /t:PublishContainer, without a Dockerfile, covering tagging, base image choice and registry push.

  Build and packages Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill sdk-container-publishing -a codexCopy
• serialization

  Has the assistant choose a serialization format for APIs, messaging and caching, and set up System.Text.Json source generation for AOT-compatible JSON.

  Data Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill serialization -a codexCopy
• snapshot-testing

  Has the assistant write Verify snapshot tests for API surfaces, HTTP responses and rendered emails, catching unintended output changes against approved baselines.

  Testing Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill snapshot-testing -a codexCopy
• testcontainers-integration-tests

  Has the assistant write xUnit integration tests against real databases, Redis and message queues in Testcontainers instead of mocks.

  Testing Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill testcontainers-integration-tests -a codexCopy
• type-design-performance

  Has the assistant design .NET types for performance by sealing classes, using readonly structs, writing pure static methods and picking suitable collection types.

  C# and language Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill type-design-performance -a codexCopy
• verify-email-snapshots

  Has the assistant write Verify snapshot tests for rendered email HTML so template regressions show up as reviewable diffs.

  Testing Aaronontheweb/dotnet-skills ★ 1.2k in the dotnet-skills plugin MIT
  Install for Codex / ChatGPT With the plugin

  codex plugin marketplace add Aaronontheweb/dotnet-skillsCopy

  Then open /plugins in Codex and install dotnet-skills.

  On its own

  npx skills add Aaronontheweb/dotnet-skills --skill verify-email-snapshots -a codexCopy
• api-versioning

  Has the assistant add Asp.Versioning to an ASP.NET Core API with URL, header or query string versioning, deprecate old versions and wire up OpenAPI.

  Web codewithmukesh/dotnet-claude-kit ★ 799 in the dotnet-claude-kit plugin MIT
  Install for Codex / ChatGPT

  Not in Codex / ChatGPT's marketplace; install it on its own.

  npx skills add codewithmukesh/dotnet-claude-kit --skill api-versioning -a codexCopy
• arch-check

  Has the assistant scan code against its declared architecture (VSA, Clean, DDD, Modular Monolith) and report dependency-direction breaks, cycles and module boundary leaks via Roslyn analysis.

  Tooling and workflow codewithmukesh/dotnet-claude-kit ★ 799 in the dotnet-claude-kit plugin MIT
  Install for Codex / ChatGPT

  Not in Codex / ChatGPT's marketplace; install it on its own.

  npx skills add codewithmukesh/dotnet-claude-kit --skill arch-check -a codexCopy