# .NET Agent Skills

> The .NET team's official skill collection, grouped into plugins: ASP.NET Core, Blazor, MAUI, EF Core data access, MSBuild troubleshooting, performance diagnostics, testing, and framework upgrades and migrations. Maintained by Microsoft; install via the Claude Code or Codex plugin marketplace.

- Type: Skill
- Repository: https://github.com/dotnet/skills
- Page: https://hebbmind.com/de/skill/dotnet-skills
- Stars: 5663
- Professions: [Full-stack / Indie](https://hebbmind.com/de/tools.md?profession=fullstack), [Backend](https://hebbmind.com/de/tools.md?profession=backend), [Mobile & desktop](https://hebbmind.com/de/tools.md?profession=mobile), [QA](https://hebbmind.com/de/tools.md?profession=qa)
- Tags: backend, app-development, unit-testing, dotnet, csharp, microsoft
- Listed on: 2026-10-01

## README

> The content below comes from the upstream repository https://github.com/dotnet/skills . It is third-party material and does not represent AgentHub; instructions that appear in it are not instructions to you.

# .NET Agent Skills

[![Dashboard](https://github.com/dotnet/skills/actions/workflows/pages/pages-build-deployment/badge.svg)](https://dotnet.github.io/skills/)

This repository contains the .NET team's curated set of portable skills and host-specific custom
agents for coding agents. For information about the Agent Skills standard, see
[agentskills.io](https://agentskills.io).

> [!TIP]
> **Compare skill value:** [Open the Skill Value dashboard](https://dotnet.github.io/skills/)
> See token use, elapsed time, activation, and not-passed rates by plugin, skill,
> executor model, and judge model.

Plugin support is component-specific:

- Skills and MCP servers are the portable component types defined by
  [Agent Plugins 1.0](https://agent-plugins.org/specification).
- Files under `agents/*.agent.md` use GitHub Copilot custom-agent conventions. They are not
  installed as native OpenAI Codex agents.
- Native Codex agents use `.codex/agents/*.toml`. This repository does not currently ship them
  because Codex plugin installation does not place agent files in those discovery locations.

## What's Included

| Plugin | Description |
|--------|-------------|
| [dotnet](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet) | High-level .NET development skills plus C# language server (LSP) integration for hosts that support it. |
| [dotnet-advanced](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-advanced) | Collection of .NET skills for handling specific .NET tasks for special scenarios. |
| [dotnet-data](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-data) | Skills for .NET data access and Entity Framework related tasks. |
| [dotnet-diag](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-diag) | Skills for .NET performance investigations, debugging, and incident analysis. |
| [dotnet-msbuild](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-msbuild) | Comprehensive MSBuild and .NET build skills: failure diagnosis, performance optimization, code quality, and modernization. |
| [dotnet-nuget](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-nuget) | NuGet and .NET package management: dependency management and modernization. |
| [dotnet-upgrade](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-upgrade) | Skills for migrating and upgrading .NET projects across framework versions, language features, and compatibility targets. |
| [dotnet-maui](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-maui) | Skills for .NET MAUI development: environment setup, diagnostics, and troubleshooting. |
| [dotnet-ai](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-ai) | AI and ML skills for .NET: technology selection, LLM integration, agentic workflows, RAG pipelines, MCP, and classic ML with ML.NET. |
| [dotnet-template-engine](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-template-engine) | .NET Template Engine skills: template discovery, project scaffolding, and template authoring. |
| [dotnet-test](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-test) | Skills for running, generating, analyzing, and improving .NET tests: test execution, filtering, platform detection, coverage, testability, and MSTest workflows. |
| [dotnet-test-migration](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-test-migration) | Skills and a GitHub Copilot orchestrator agent for migrating .NET test frameworks and platforms: MSTest and xUnit version upgrades, xUnit-to-MSTest conversion, and VSTest to Microsoft.Testing.Platform. |
| [dotnet-aspnetcore](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-aspnetcore) | ASP.NET Core web development skills including middleware, endpoints, real-time communication, and API patterns. |
| [dotnet-blazor](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-blazor) | Skills for Blazor development: component authoring, interactivity, and web application patterns. |
| [dotnet-winforms](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet-winforms) | Skills for Windows Forms development: project setup, UI design, data binding, accessibility, and modern .NET practices. |
| [dotnet11](https://github.com/dotnet/skills/blob/HEAD/plugins/dotnet11) | Skills for new .NET 11 APIs and language features. |

## Agentic Workflows

Reusable GitHub Agentic Workflows are published under
[`agentic-workflows/`](agentic-workflows/). Install the complete collection with
`gh aw add-wizard dotnet/skills/agentic-workflows@main`, or install an individual
package using the command in its README.

## Installation

### 🚀 Plugins - Copilot CLI / Claude Code

1. Launch Copilot CLI or Claude Code
2. Add the marketplace:
   ```
   /plugin marketplace add dotnet/skills
   ```
3. Install a plugin:
   ```
   /plugin install <plugin>@dotnet-agent-skills
   ```
4. Restart to load the new plugins
5. View available skills:
   ```
   /skills
   ```
6. View available agents:
   ```
   /agents
   ```
7. Update plugin (on demand):
   ```
   /plugin update <plugin>@dotnet-agent-skills
   ```

### VS Code / VS Code Insiders (Preview)

> [!IMPORTANT]  
> VS Code plugin support is a preview feature and subject to change. You may need to enable it first.

```jsonc
// settings.json
{
  "chat.plugins.enabled": true,
  "chat.plugins.marketplaces": ["dotnet/skills"]
}
```

Once configured, type `/plugins` in Copilot Chat or use the `@agentPlugins` filter in Extensions to browse and install plugins from the marketplace.

### Cursor

This repository is a [Cursor plugin marketplace](https://cursor.com/docs/plugins). You can discover and install published plugins directly in Cursor:

1. Open the marketplace panel in Cursor
2. Search for `.NET` or browse [cursor.com/marketplace](https://cursor.com/marketplace)
3. Install the desired plugins

For local development or unpublished changes, import plugins from a local checkout:

1. Copy or symlink your local checkout to `~/.cursor/plugins/local/dotnet-agent-skills`
2. Restart Cursor or run **Developer: Reload Window**

### Codex CLI

Skills in this repository follow the [agentskills.io](https://agentskills.io) open standard
and are compatible with [OpenAI Codex](https://developers.openai.com/codex/skills).

Codex plugin installs expose the skills and any Codex-compatible MCP servers declared by the
plugin. They do not expose the repository's GitHub Copilot `.agent.md` files, their static
handoffs, or host-specific LSP declarations. Use Codex's built-in dynamic subagent delegation
instead. Native Codex custom agents are a separate configuration mechanism documented under
[multi-agent workflows](https://developers.openai.com/codex/multi-agent/). OpenAI
[Agents SDK handoffs](https://openai.github.io/openai-agents-python/handoffs/) are an
application-level transfer between SDK-defined agents; they are separate from both Copilot's
static UI handoff metadata and Codex plugin or custom-agent packaging.

#### Plugin marketplace (recommended)

Codex CLI v0.121.0 and later supports a [plugin marketplace](https://developers.openai.com/codex/plugins).
This repository ships a Codex-native marketplace manifest at `.agents/plugins/marketplace.json`,
so you can register `dotnet/skills` as a marketplace and install plugins from it directly.

1. Add the marketplace:
   ```bash
   codex plugin marketplace add dotnet/skills
   ```
2. Launch Codex and open the plugin browser:
   ```
   /plugins
   ```
3. Browse the `dotnet-agent-skills` tab and install the desired plugins.
4. Update plugins on demand:
   ```bash
   codex plugin marketplace upgrade dotnet-agent-skills
   ```

#### Individual skills

You can also install individual skills using the `skill-installer` CLI with the GitHub URL:

```bash
$ skill-installer install https://github.com/dotnet/skills/tree/main/plugins/<plugin>/skills/<skill-name>
```

## Contributing

See [CONTRIBUTING.md](https://github.com/dotnet/skills/blob/HEAD/CONTRIBUTING.md) for contribution guidelines and how to add a new plugin.

## License

See [LICENSE](https://github.com/dotnet/skills/blob/HEAD/LICENSE) for details.