Is the C# Scripts skill free?

Yes. The skill itself is free from dotnet/skills. SkillProof publishes the install command and an independent test verdict at no cost.

What is the C# Scripts SkillProof Score?

9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.

How do I install C# Scripts?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use C# Scripts with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

C# Scripts

Runs file-based C# apps with the .NET CLI without scaffolding a full project.

by dotnet · dotnet/skills

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.2/10
Tested: Jul 12, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 8f5c41b

Verbatim clone+cp install worked cleanly (self-contained SKILL.md, strict-YAML frontmatter, no missing referenced files); description is tightly scoped with explicit do/don't cases so the trigger battery separated without overlap. OUTPUT was tested on code correctness only because the .NET SDK is not installed in the sandbox (a genuine runtime dependency the skill itself checks for in Step 1 and documents a fallback for). A/B on a two-file file-based C# app: the skill wired the helper in with the `#:include` directive per its conventions and was correct/runnable, while the no-skill base wrongly assumed sibling `.cs` files auto-compile into a file-based app (they do not) and would fail to resolve the helper — a real correctness win driven by the skill's directive conventions.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 8/10
Docs & honesty 5/5

What C# Scripts does

Run file-based C# apps with the .NET CLI when the user explicitly wants C#/.NET code without creating a project. Use for C# language/API experiments, one-file C# apps, small multi-file C# apps composed with `#:include`/`#:exclude`, or C# file-based apps linked with `#:ref`. Do not use for language-agnostic throwaway scripts, generic computations, Python/PowerShell-style automation, full…

How to install C# Scripts

git clone https://github.com/dotnet/skills
cd skills
mkdir -p ~/.claude/skills
cp -r plugins/dotnet-advanced/skills/csharp-scripts ~/.claude/skills/csharp-scripts

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger C# Scripts

/csharp-scripts Runs file-based C# apps with the .NET CLI without scaffolding a full project.

It also activates on plain-language prompts like these:

Run this quick C# script without creating a project
Test this small C# snippet with the .NET CLI
Link two C# files with a file-based app reference

Frequently asked questions

Is the C# Scripts skill free?: Yes. The skill itself is free from dotnet/skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does C# Scripts work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 12, 2026. Verdict: Tested · Works. Verbatim clone+cp install worked cleanly (self-contained SKILL.md, strict-YAML frontmatter, no missing referenced files); description is tightly scoped with explicit do/don't cases so the trigger battery separated without overlap. OUTPUT was tested on code correctness only because the .NET SDK is not installed in the sandbox (a genuine runtime dependency the skill itself checks for in Step 1 and documents a fallback for). A/B on a two-file file-based C# app: the skill wired the helper in with the `#:include` directive per its conventions and was correct/runnable, while the no-skill base wrongly assumed sibling `.cs` files auto-compile into a file-based app (they do not) and would fail to resolve the helper — a real correctness win driven by the skill's directive conventions.
What is the C# Scripts SkillProof Score?: 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.
How do I install C# Scripts?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use C# Scripts with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.