A skill with an underscore
$npx -y skills add google/adk-java --skill underscore_skillInstalls into the current project.
Run `npx skills use "https://github.com/google/adk-java" --skill "google/adk-java/underscore_skill"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/google/adk-java" that are relevant to the current task. Run `npx skills add "https://github.com/google/adk-java"` and select the relevant skills, then follow their instructions.