A unique marker skill installed by xskill, used to verify openclaw sees it
$npx -y skills add skillnerds/xskill --skill demo_skillInstalls into the current project.
Run `npx skills use "https://github.com/skillnerds/xskill" --skill "skillnerds/xskill/demo_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/skillnerds/xskill" that are relevant to the current task. Run `npx skills add "https://github.com/skillnerds/xskill"` and select the relevant skills, then follow their instructions.