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dotnet-file-based-apps

Run, build, and publish C# code from a single .cs file using .NET SDK.

71|10|Updated Feb 11, 2026
Search Tags:#csharp#cli#dotnet#scripting#file-based apps#sdk directives
One-click install
npx skills add https://github.com/wshaddix/dotnet-skills --skill dotnet-file-based-apps-wshaddix
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: dotnet-file-based-apps
Source: https://github.com/wshaddix/dotnet-skills/tree/main/skills/dotnet-file-based-apps
Command: npx skills add https://github.com/wshaddix/dotnet-skills --skill dotnet-file-based-apps-wshaddix

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill allows developers to run, build, and publish C# applications directly from a single .cs file, eliminating the need for traditional .csproj project files for simple scripts and utilities.

Core Features & Use Cases

  • Simplified Development: Write and execute C# code without the overhead of project file creation.
  • Directive-Based Configuration: Use #: directives within the code file to specify package references, SDKs, and build properties.
  • Use Case: Quickly prototype a C# utility script that fetches data from an API and logs it, without needing to set up a full project structure.

Quick Start

Execute the C# code in the file 'my_script.cs' using the dotnet CLI.

Frequently Asked Questions about dotnet-file-based-apps

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I run C# code from a single file without a project?▼

You can run C# code directly from a single .cs source file using the .NET SDK's file-based application feature, eliminating the need to create a traditional .csproj project file for script execution.

How do I add NuGet package references to a C# script?▼

You can add package references to a C# script by using embedded `#:` directives within the source file. This directive-based configuration manages packages, SDK selection, and MSBuild properties directly in the code.

What are file-based apps in .NET used for?▼

File-based apps in .NET are used for rapid scripting, utility development, and small application deployment. They simplify development by letting you execute C# code without the overhead of setting up a full project structure.

Do I need a .csproj file to build and publish a C# utility script?▼

No, you do not need a .csproj file to build and publish simple C# utilities. The .NET SDK file-based application feature supports building and publishing directly from a single .cs source file.

Can I specify MSBuild properties in a file-based C# application?▼

Yes, you can specify MSBuild properties in a file-based C# application by using embedded `#:` directives within the source code file. This allows configuration of SDK selection and build properties without a project file.

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