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.