Would non lambda function call be supported? I think in the future it will be really normal applying plugins without any configuration as

defaults

is enough:

// settings.gradle.dcl
defaults {
    semver {
        tagPrefix = "v"
    }
}

That will end up with a lot of empty lambdas (depending on the formatter, they can be expanded and wasting vertical space.

// build.gradle.dcl
semver { }

I think

semver()

or

semver

should be supported. Indeed the default formatter is already changing it to

semver {
}

I also thought the same but I prefer to update the formatter to { } to not change the function call when you want to add a default value.