How does this skill handle ASP.NET Core Controllers?

It helps refactor standard API controllers to use the primary constructor syntax, making the injection of services, loggers, and repositories much more concise.

What is the benefit of using C# 12 Primary Constructors?

Primary Constructors significantly reduce boilerplate code by allowing you to declare constructor parameters directly on the class header, eliminating the need for explicit private field declarations and assignments for Dependency Injection.

Should I use Primary Constructors for all classes?

They are best suited for simple Dependency Injection. If your class requires complex initialization logic, validation, or side effects during construction, a traditional constructor is still preferred.

Are Primary Constructor parameters automatically made into fields?

In classes, they are 'captured' and available within the class body but do not automatically become public properties. In records, they are positional and do become properties.

C# 12 Primary Constructor Optimization

Name: C# 12 Primary Constructor Optimization
Author: andychang0121

byandychang0121

0•

API Development

Modernizes ASP.NET Core codebases by implementing C# 12 Primary Constructors for cleaner Dependency Injection.

This skill enables Claude to refactor and optimize C# code using the Primary Constructor syntax introduced in C# 12. It specifically targets ASP.NET Core components like Controllers, Services, and Repositories to eliminate boilerplate code associated with private readonly fields and constructor assignments. The skill provides intelligent guidance on when to adopt this modern pattern for dependency injection and when to retain traditional constructors for complex initialization or validation logic, ensuring code remains maintainable and follows industry best practices.

Key Features

01Identifies scenarios requiring traditional constructors for complex logic

020 GitHub stars

03Provides guidance on positional record vs. class-based primary constructors

04Prevents common pitfalls like redundant field declarations and assignments

05Eliminates boilerplate private readonly fields and constructor assignments

06Streamlines Dependency Injection in ASP.NET Core Controllers and Services

Use Cases

01Refactoring ASP.NET Core API controllers for better readability

02Modernizing legacy .NET codebases to leverage C# 12 language features

03Implementing clean Dependency Injection patterns in new microservices

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add andychang0121/dotnet-skills csharp-primary-constructor

For use in Claude.ai and ChatGPT

Key Features

01Identifies scenarios requiring traditional constructors for complex logic

020 GitHub stars

03Provides guidance on positional record vs. class-based primary constructors

04Prevents common pitfalls like redundant field declarations and assignments

05Eliminates boilerplate private readonly fields and constructor assignments

06Streamlines Dependency Injection in ASP.NET Core Controllers and Services

Use Cases

01Refactoring ASP.NET Core API controllers for better readability

02Modernizing legacy .NET codebases to leverage C# 12 language features

03Implementing clean Dependency Injection patterns in new microservices

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add andychang0121/dotnet-skills csharp-primary-constructor

For use in Claude.ai and ChatGPT