Skip attribute: enable or no?

1 - In Code.cs

public class SampleTests
{
    public bool SomeCondition => ...;

    [Fact]
    public void MySkipWhen()
    {
        Assert.SkipWhen(SomeCondition, "This is dynamically skipped when SomeCondition is true");
    }

    [Fact]
    public void MySkipUnless()
    {
        Assert.SkipUnless(SomeCondition, "This is dynamically skipped when SomeCondition is false");
    }
}

2 - In Attribute.cs

public class SampleTests
{
    public bool SomeCondition => ...;

    [Fact(
        Skip = "This is dynamically skipped when SomeCondition is true",
        SkipWhen = nameof(SomeCondition)
    )]
    public void MySkipWhen() { }

    [Fact(
        Skip = "This is dynamically skipped when SomeCondition is false",
        SkipUnless = nameof(SomeCondition)
    )]
    public void MySkipUnless() { }
}