C# Rules

by softspark

C# Rules is a Quality skill for Claude Code, published by softspark in ai-toolkit.

170 stars20 forkson softspark/ai-toolkitAdded 2026/09/08+2% in starsRepository updated 2026/09/07

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Install in seconds

Install C# Rules

Copy C# Rules into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/softspark/ai-toolkit/tree/main/app/skills/csharp-rules ~/.claude/skills/csharp-rules

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/softspark/ai-toolkit.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: app/skills/csharp-rules/SKILL.md in softspark/ai-toolkit
Installs to: ~/.claude/skills/csharp-rules
Collection: One of 25 skills cataloged from this repository
Category: Quality — 1897 skills

What C# Rules does

C# Rules defines coding style, framework usage, patterns, security, and testing conventions for C#/.NET projects. Use it when writing or reviewing .cs, .csproj, .sln, ASP.NET Core, EF Core, or test code.

C# Rules is cataloged under Quality on DirSkills. C# Rules comes from a repository tagged ai-agents, ai-skills, anthropic, claude and claude-code.

Documentation

README

Excerpt

PascalCase: classes, structs, enums, interfaces, methods, properties, events.
camelCase: local variables, parameters, private fields.
Prefix interfaces with I: IUserRepository, IDisposable.
Prefix private fields with _: private readonly ILogger _logger;.
UPPER_SNAKE: not conventional in C#. Use PascalCase for constants.

This is the opening of the README. Read the full README on GitHub.

Frequently asked about C# Rules

What else does softspark publish alongside C# Rules?
C# Rules is one of 25 skills that DirSkills catalogs from softspark/ai-toolkit, the repository it ships in. Its siblings there include API Patterns, Accessibility Validator and Agent Creator. Each one is a separate skill with its own page in this directory, installs the same way C# Rules does, and is maintained by softspark in that same repository. The rest of the collection is listed on the softspark/ai-toolkit page.
How does C# Rules compare to other Quality skills?
C# Rules ranks #1748 by stars among the 1897 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of C# Rules against them. Open each page to compare what they document and how they install.