modern-csharp

Modernize C# code with C# 14 features for .NET 10.

Updated Apr 27, 2026
One-click install
npx skills add https://github.com/shahdanish/vibepos --skill modern-csharp-shahdanish
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: modern-csharp
Source: https://github.com/shahdanish/vibepos/tree/main/skills/modern-csharp
Command: npx skills add https://github.com/shahdanish/vibepos --skill modern-csharp-shahdanish

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It helps you modernize and write new C# code using up-to-date language features that improve safety, readability, and performance while targeting .NET 10 and C# 14.

Core Features & Use Cases

  • Primary constructors for DI services: Prefer injecting dependencies via primary constructor parameters to reduce boilerplate, especially in .NET service classes.
  • Modern data modeling with records: Use record and readonly record struct for immutable DTOs and value objects that are harder to misuse.
  • Safer and faster patterns: Apply pattern matching (is/switch/list patterns), raw string literals, Span<T>, and field keyword for validation-backed properties.

Quick Start

Load the modern-csharp skill and then ask for C# 14 guidance to refactor a given .NET code snippet into a more readable and performant version using records, primary constructors, and modern pattern matching.

Frequently Asked Questions about modern-csharp

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I refactor C# code to use primary constructors for dependency injection?

Primary constructors reduce boilerplate by injecting dependencies directly as class parameters. You can refactor .NET service classes to instantiate dependencies without explicit constructor bodies, yielding cleaner and more concise DI-enabled components.

What is the best way to model immutable DTOs in .NET 10?

Modeling immutable DTOs is best achieved using records and readonly record structs. These C# 14 constructs provide value-based equality and immutability by default, making your data transfer objects and value objects safer and harder to misuse.

How does pattern matching improve C# 14 conditional logic?

Pattern matching improves C# 14 conditional logic by replacing complex if-else chains with expressive is, switch, and list patterns. This approach increases code readability and safety when evaluating complex data shapes and runtime types.

Can I use Span<T> and raw string literals to improve .NET performance?

Yes, applying Span<T> reduces memory allocations for high-performance data processing, while raw string literals simplify multi-line string formatting. Together they optimize execution speed and reduce memory overhead in .NET 10 applications.

When do I need the field keyword for validated properties in C#?

Use the field keyword when you need validation-backed properties without explicit private backing fields. It allows custom validation logic directly within property accessors, ensuring data integrity while maintaining concise C# 14 syntax.