Skip to main content
affpapa.org
RU EN
skill CX Codex

modern-csharp-coding-standards · wshaddix — Claude Code skill for C#

This skill guides C# implementation and refactoring, from strongly typed models to async methods and buffer handling.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add wshaddix/dotnet-skills --skill modern-csharp-coding-standards -a claude-code
npx skills add wshaddix/dotnet-skills --skill csharp-coding-standards -a claude-code
Open on GitHub

What modern-csharp-coding-standards does

The skill steers agents toward modern C# constructs such as record, readonly record struct, pattern matching, nullable reference types, and composition over inheritance. It also lays out conventions for names, file organization, namespaces, and access modifiers.

For asynchronous code, it recommends cancellation support. For performance-critical paths, it points to Span<T> and Memory<T>. The guidance also covers focused interfaces and public API design. It draws on C# 12+ features, so check whether those fit your project’s target version.

Use it when creating a C# service, shaping a library API, or refactoring an existing codebase. The skill provides coding guidance; you still need to verify that suggested syntax works with your target .NET version.

What it helps with

  • apply consistent conventions to new C# code
  • refactor models with stronger typing
  • design a library’s public API
  • add cancellation support to async methods
  • handle buffers with Span<T> or Memory<T>

Example prompts for the agent

  • Refactor this C# class using the skill’s guidance while preserving its behavior.
  • Design a public API for this library with nullable reference types in mind.
  • Rewrite this buffer-handling code with Span<T> if it fits the use case.

How to install modern-csharp-coding-standards

1Skills CLI (Vercel)

npx skills add wshaddix/dotnet-skills --skill modern-csharp-coding-standards -a claude-code
npx skills add wshaddix/dotnet-skills --skill csharp-coding-standards -a claude-code

2Manually: put the files in place

~/.claude/skills/csharp-coding-standards/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/csharp-coding-standards/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about modern-csharp-coding-standards

How do I install modern-csharp-coding-standards in Claude Code?

Run npx skills add wshaddix/dotnet-skills --skill modern-csharp-coding-standards -a claude-code.

What does modern-csharp-coding-standards do?

It gives agents C# conventions and design guidance for types, async code, APIs, and buffer handling.

Can I use this skill with a C# version earlier than 12?

The guidance draws on C# 12+ features, so some suggestions may not fit projects targeting an earlier version.

Similar skills

All skills for Programming languages →

modern-csharp-coding-standards by other authors comes first.

modern-csharp-coding-standards Aaronontheweb Enforces modern C# 12+ coding standards, including immutable records, pattern matching, Span<T>, zero-allocation buffers, and async best practices. CX Codex +1 2,200installs migrate-to-shoehorn Matt Pocock Replaces as type assertions in tests with helpers from @total-typescript/shoehorn. Use it when tests need partial objects or deliberately invalid data. 475,388installs write-swift emilkowalski This skill guides Swift coding, reviews, and migrations using the language’s current practices. Use it to investigate concurrency errors, hangs, data races, or retain cycles. CX Codex +1 119,300installs megacave JuliusBrussee Switches agent responses to Classical Chinese (wenyan) to reduce terminal output. Activated via /megacave or /caveman wenyan. CX Codex +1 25,400installs find-docs upstash Pulls up-to-date documentation, API references and code examples for any library through the Context7 CLI. Useful when the model's training data lags behind the API. CX Codex +1 9,400installs typescript-advanced-types Seth Hobson Guides an agent through advanced TypeScript types, from generics to conditional and mapped types. Use it for typed libraries, API clients, or strict configuration objects. CX Codex 92,169installs smart-explore thedotmack Uses tree-sitter to map code structure and find symbols. Useful when you need to explore a codebase without loading every full file. CX Codex +1 7,300installs

From the same set13

dotnet-xunit A skill for writing xUnit v3 tests in .NET: attributes, fixtures, parallel runs, IAsyncLifetime. CX Codex +1 613installs dotnet-testing-strategy Guides assistants in choosing between unit and integration tests for .NET projects. Sets directory structures and method naming patterns. CX Codex +1 608installs csharp-wolverinefx Guidance for building .NET apps with WolverineFX, including message handlers, HTTP endpoints, and event sourcing with Marten. CX Codex +1 570installs testcontainers A skill for .NET integration tests: spins up real databases, Redis and message brokers in Docker instead of mocks. CX Codex +1 565installs microsoft-extensions-dependency-injection A skill that tames service registrations in .NET: splits Program.cs into extension methods and helps you pick the right service lifetime. CX Codex +1 549installs logging-observability Adds structured Serilog logging, request correlation, and HTTP request logs for ASP.NET Core Razor Pages. Use it when wiring observability into an app. CX Codex +1 542installs validation-patterns A skill that tells your agent how to validate data in ASP.NET Core, from attributes to FluentValidation and startup option checks. CX Codex +1 537installs project-structure A skill that hands your coding agent a fixed layout for .NET solutions: where projects live, how shared build settings and package versions are wired. CX Codex +1 536installs

Project sponsors

Companies that keep this analytics open
Gold sponsor
Nutra.Club

Impressions, clicks and code copies — open statistics. We keep the numbers public for the same reason NeBlask itself is public. Become a sponsor