You can open the samples inside an IDE using the IntelliJ native importer or Eclipse Buildship.

This sample shows how to create a plugin with a task that accepts arguments. The plugin is packaged via an included build.

build.gradle
plugins {
    id 'com.example.project-info'
}

version = '1.0.2'
settings.gradle
rootProject.name = 'task-with-arguments'
includeBuild('project-info')
build.gradle.kts
plugins {
    id("com.example.project-info")
}

version = "1.0.2"
settings.gradle.kts
rootProject.name = "task-with-arguments"
includeBuild("project-info")

To execute the sample task:

$ ./gradlew projectInfo --format json
{
    "projectName": "task-with-arguments"
    "version": "1.0.2"
}

BUILD SUCCESSFUL in 1s
1 actionable task: 1 executed

For more information, see Gradle Plugins reference chapter. You can also get started quickly using the Build Init Plugin.