What is the recommended approach for error handling?

The skill promotes the use of the Result pattern for expected business logic errors instead of throwing expensive exceptions.

Does it recommend using AutoMapper for object mapping?

No, this skill advocates for explicit mapping extension methods over reflection-based metaprogramming tools to ensure better performance and maintainability.

Does this skill support the latest versions of C#?

Yes, it specifically targets features and best practices for C# 9 through C# 12 and subsequent releases.

How does this skill improve application performance?

It provides guidance on zero-allocation patterns using Span , Memory , and ArrayPool to significantly reduce GC pressure in high-throughput applications.

Modern C# Coding Standards

Name: Modern C# Coding Standards
Author: Aaronontheweb

byAaronontheweb

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423

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Developer Tools

Writes high-performance, functional-style C# code using the latest language features and performance-oriented patterns.

This skill provides Claude with comprehensive expertise in modern .NET development, focusing on C# 12 and beyond. It enforces best practices such as immutability through records, type safety via value objects, and advanced pattern matching to create clean, maintainable codebases. Beyond syntax, it guides the implementation of high-performance patterns using Span<T> and Memory<T>, advocates for composition over inheritance, and promotes robust error handling using Result types. It is an essential companion for developers building modern, scalable, and memory-efficient .NET applications.

Key Features

01Promotes functional error handling with Result types and explicit mapping over reflection

02423 GitHub stars

03Optimizes performance with Span<T>, Memory<T>, and zero-allocation patterns

04Streamlines complex logic using modern pattern matching and switch expressions

05Implements immutability-by-default using C# records and init-only properties

06Enforces strict type safety through readonly record structs and nullable reference types

Use Cases

01Designing high-throughput APIs and performance-critical service layers

02Refactoring legacy .NET code to modern C# 12+ functional-style patterns

03Implementing domain models with strong value semantics and DDD principles

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add aaronontheweb/dotnet-skills csharp-coding-standards

For use in Claude.ai and ChatGPT

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