Utilize static code analysis and linters in your CI pipeline. Static code analysis and linters are tools that analyze your code for potential issues and violations of best practices. By integrating them into your CI pipeline, you can catch these issues early in the development process and prevent them from making it into production.

Static code analysis tools analyze your code without actually executing it. They can detect issues such as unused variables, unreachable code, and potential security vulnerabilities. By catching these issues early, you can save time and effort in debugging and testing later on. Some popular static code analysis tools for .NET Core include SonarQube and Roslyn Analyzers.

Linters, on the other hand, are tools that analyze your code for style and formatting issues. They can enforce consistent code style across your team and prevent common mistakes such as using undeclared variables or forgetting semicolons. Some popular linters for C# include StyleCop and ReSharper. By integrating linters into your CI pipeline, you can ensure that your code is not only functional but also maintainable and readable.

// Example of using Roslyn Analyzers in .NET Core
public class MyClass
{
    private string _myString;

    public MyClass(string myString)
    {
        _myString = myString;
    }

    public void DoSomething()
    {
        Console.WriteLine(_myString);
    }
}

In the above example, Roslyn Analyzers could detect that the private field `_myString` is never assigned a value after initialization, and suggest making it readonly. This would prevent potential bugs caused by accidentally modifying the field later on. By utilizing static code analysis and linters in your CI pipeline, you can catch these issues early and ensure that your code is of high quality.