intellij-plugin/features/command-line/resources/command-line.xml

<idea-plugin>
  <extensions defaultExtensionNs="com.intellij">
    <appStarter id="createCourse" implementation="com.jetbrains.edu.commandLine.EduCourseCreatorAppStarter"/>
    <appStarter id="installCoursePlugins" implementation="com.jetbrains.edu.commandLine.EduCoursePluginInstallerAppStarter"/>
    <appStarter id="validateCourse" implementation="com.jetbrains.edu.commandLine.validation.EduCourseValidatorAppStarter"/>
    <appStarter id="openCourse" implementation="com.jetbrains.edu.commandLine.EduOpenCourseAppStarter"/>
  </extensions>
</idea-plugin>