Agent skill

Dotnet Run File

by NikiforovAll in NikiforovAll/claude-code-rules

Run script-like CSharp programs using dotnet run file.cs. An agent skill from NikiforovAll/claude-code-rules.

Apache-2.0Auto-check passed

Install Dotnet Run File

skills CLI

$ npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install NikiforovAll/claude-code-rules dotnet-run-file --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/NikiforovAll/claude-code-rules.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/handbook-dotnet/skills/dotnet-run-file .claude/skills/dotnet-run-file && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "dotnet-run-file" agent skill from https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-dotnet/skills/dotnet-run-file into .claude/skills/dotnet-run-file/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet-run-file", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-dotnet/skills/dotnet-run-file

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install NikiforovAll/claude-code-rules dotnet-run-file --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/NikiforovAll/claude-code-rules.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/handbook-dotnet/skills/dotnet-run-file .agents/skills/dotnet-run-file && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "dotnet-run-file" agent skill from https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-dotnet/skills/dotnet-run-file into .agents/skills/dotnet-run-file/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet-run-file", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install NikiforovAll/claude-code-rules dotnet-run-file --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/NikiforovAll/claude-code-rules.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/handbook-dotnet/skills/dotnet-run-file .cursor/skills/dotnet-run-file && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "dotnet-run-file" agent skill from https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-dotnet/skills/dotnet-run-file into .cursor/skills/dotnet-run-file/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet-run-file", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/NikiforovAll/claude-code-rules.git --path plugins/handbook-dotnet/skills/dotnet-run-file

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install NikiforovAll/claude-code-rules dotnet-run-file --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/NikiforovAll/claude-code-rules.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/handbook-dotnet/skills/dotnet-run-file .gemini/skills/dotnet-run-file && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "dotnet-run-file" agent skill from https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-dotnet/skills/dotnet-run-file into .gemini/skills/dotnet-run-file/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet-run-file", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install NikiforovAll/claude-code-rules dotnet-run-file

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/NikiforovAll/claude-code-rules.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/handbook-dotnet/skills/dotnet-run-file .github/skills/dotnet-run-file && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "dotnet-run-file" agent skill from https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-dotnet/skills/dotnet-run-file into .github/skills/dotnet-run-file/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet-run-file", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install NikiforovAll/claude-code-rules dotnet-run-file --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/NikiforovAll/claude-code-rules.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/handbook-dotnet/skills/dotnet-run-file .opencode/skills/dotnet-run-file && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "dotnet-run-file" agent skill from https://github.com/NikiforovAll/claude-code-rules/tree/main/plugins/handbook-dotnet/skills/dotnet-run-file into .opencode/skills/dotnet-run-file/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "dotnet-run-file", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: dotnet-run-file
GitHub stars: 141
Token cost: ~704 tokens
SKILL.md length: 227 words
Files: 2 (incl. references)
Skills in repo: 26
Repo updated: Oct 2, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Run script-like CSharp programs using dotnet run file.cs. An agent skill from NikiforovAll/claude-code-rules.

Works in 2 steps: Run a C# File → Execute via Stdin
Users want to execute CSharp code directly
SKILL.md covers When to Use This Skill, Guide, Quick Reference and Core Operations, plus 2 more sections
Calls dotnet and jq

What it does

Dotnet Run File is an agent skill from NikiforovAll/claude-code-rules. Run script-like CSharp programs using dotnet run file.cs. Use this skill when users want to execute CSharp code directly, write one-liner scripts via stdin, or learn about run file directives.

Its SKILL.md is about 700 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/guide.md`).

It works with .NET and C#. The repository describes itself as: Learn practical techniques to enhance your AI-assisted development workflow with Claude Code. The licence is Apache-2.0.

When your agent uses it

Users want to execute CSharp code directly
Write one-liner scripts via stdin
Learn about run file directives

Example prompts

“/dotnet-run-file”

Workflow steps

2 steps, taken from the step headings in SKILL.md.

Run a C# File
Execute via Stdin

What it can do on your machine

Read from SKILL.md and the folder at commit 281c063. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- dotnet
- jq
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Dotnet Run File loads about 704 tokens when it runs, and up to ~1.5k if it reads all its reference files. Until then it costs about 52 tokens; SKILL.md has 227 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~52
When it runs · the whole SKILL.md, loaded when a task matches: ~704
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~1.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from NikiforovAll/claude-code-rules at commit 281c063, republished under its Apache-2.0 licence (© NikiforovAll). 227 words, ~704 tokens.

Download SKILL.mdSave it as .claude/skills/dotnet-run-file/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: dotnet-run-file
description: Run script-like CSharp programs using dotnet run file.cs. Use this skill when users want to execute CSharp code directly, write one-liner scripts via stdin, or learn about run file directives.

.NET Run Files

Run C# code directly without creating project files using .NET 10's dotnet run file.cs feature.

When to Use This Skill

Use this skill when the user wants to:

Execute C# code quickly without creating a project
Write one-liner scripts via stdin (ideal for Claude Code)
Learn about run file directives (#:package, #:sdk, #:property)
Create executable shell scripts in C#
Convert a run file to a full project

Guide

For detailed examples and directives reference, load references/guide.md.

Quick Reference

Basic Execution

bash

# Run a .cs file
dotnet run app.cs

# Run from stdin
echo 'Console.WriteLine("Hello");' | dotnet run -

# Multi-line via heredoc
dotnet run - << 'EOF'
var now = DateTime.Now;
Console.WriteLine($"Time: {now}");
EOF

Directives

csharp

#:package Humanizer@*            // NuGet package (version required, wildcards ok)
#:sdk Microsoft.NET.Sdk.Web       // SDK selection
#:property LangVersion preview    // MSBuild property
#:project ../src/MyLib            // Project reference

Convert to Project

bash

dotnet project convert app.cs

Core Operations

1. Run a C# File

Steps:

Create a .cs file with your code (top-level statements supported)
Add directives at the top if needed (packages, SDK, properties)
Execute: dotnet run filename.cs

Example:

csharp

// hello.cs
Console.WriteLine("Hello from .NET!");

bash

dotnet run hello.cs

2. Execute via Stdin

Purpose: Run C# code without creating files - ideal for quick scripts and AI-assisted workflows.

Patterns:

bash

# Simple one-liner
echo 'Console.WriteLine(Math.PI);' | dotnet run -

# With package
dotnet run - << 'EOF'
#:package Humanizer@*
using Humanizer;
Console.WriteLine(TimeSpan.FromMinutes(90).Humanize());
EOF

# Heredoc for multi-line
dotnet run - << 'EOF'
using System.Text.Json;

var obj = new { Name = "Test", Value = 42 };
Console.WriteLine(JsonSerializer.Serialize(obj));
EOF

Interactive Flow

When user asks to run C# code without specifics:

Ask what they want to accomplish
Determine if stdin one-liner or file-based is better
For simple tasks → use stdin pattern
For complex tasks → create a .cs file
Add necessary directives based on requirements
Execute and show results

Claude Code Integration Tips

For AI-assisted workflows:

Prefer stdin for quick calculations, data transformations, API calls
Use heredoc syntax for multi-line code
Output JSON for easy parsing: dotnet run script.cs | jq .

Files

SKILL.md and 1 other file (references) in plugins/handbook-dotnet/skills/dotnet-run-file of NikiforovAll/claude-code-rules.

SKILL.md
references/guide.md

Open the folder on GitHubat commit 281c063

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders. This page covers the copy in NikiforovAll/claude-code-rules, which our catalogue first saw on October 7, 2026.

NikiforovAll/github-copilot-rules.github/skills/dotnet-run-file

Compare with similar skills

Dotnet Run File next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Dotnet Run File compared with similar skills
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Speckit ConstitutionWeihanLi/WeihanLi.Common	242	11 repos	~2.1k	Automated safety check: Pass	Apache-2.0	25 days ago
Analyzing .NET Performancedotnet/skills	5.6k	3 repos	~3.1k	Automated safety check: Pass	MIT	today
Find Untested Sourcesmicrosoft/testfx	1k	2 repos	~3.3k	Automated safety check: Pass	MIT	today
Add Analyzerdotnet/roslynator	3.5k	—	~1.3k	Automated safety check: Pass	Custom licence	5 days ago

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Works with

Questions about Dotnet Run File

What does Dotnet Run File do?

Run script-like CSharp programs using dotnet run file.cs. An agent skill from NikiforovAll/claude-code-rules. Dotnet Run File is an agent skill from NikiforovAll/claude-code-rules.cs.

When should I use Dotnet Run File?

Dotnet Run File fits situations like: users want to execute CSharp code directly; write one-liner scripts via stdin; learn about run file directives.

How do I install Dotnet Run File in Claude Code?

Run `npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a claude-code`. Or copy the skill folder (plugins/handbook-dotnet/skills/dotnet-run-file in NikiforovAll/claude-code-rules) into .claude/skills/dotnet-run-file in your project. Claude Code loads it when a task matches its description.

How do I install Dotnet Run File in Codex?

Run `npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a codex`. Or copy the skill folder (plugins/handbook-dotnet/skills/dotnet-run-file in NikiforovAll/claude-code-rules) into .agents/skills/dotnet-run-file in your project. Codex loads it when a task matches its description.

Can I use Dotnet Run File in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add NikiforovAll/claude-code-rules --skill dotnet-run-file -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/dotnet-run-file, .gemini/skills/dotnet-run-file, .github/skills/dotnet-run-file and .opencode/skills/dotnet-run-file in your project.

What does Dotnet Run File need to run?

Going by SKILL.md and its folder, Dotnet Run File needs the command-line tools its instructions call (dotnet and jq).

Does Dotnet Run File access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Dotnet Run File safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Dotnet Run File use?

Dotnet Run File is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Dotnet Run File use?

About 704 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 833 tokens, read only when the agent opens those files.

What are the alternatives to Dotnet Run File?

Skills that share tags, products or a category with Dotnet Run File: Minimax DOCX (poco-ai/poco-claw, 1.4k stars), Speckit Constitution (WeihanLi/WeihanLi.Common, 242 stars), Analyzing .NET Performance (dotnet/skills, 5.6k stars) and Find Untested Sources (microsoft/testfx, 1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Dotnet Run File?

NikiforovAll (a GitHub user) maintains it in NikiforovAll/claude-code-rules, which has 141 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on October 2, 2026.

Source: NikiforovAll/claude-code-rules on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Dotnet Run File

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

.NET Run Files

When to Use This Skill

Guide

Quick Reference

Basic Execution

Directives

Convert to Project

Core Operations

1. Run a C# File

2. Execute via Stdin

Interactive Flow

Claude Code Integration Tips

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from NikiforovAll/claude-code-rules

Related

Questions about Dotnet Run File