컬렉션 getter가 내부 상태를 직접 노출하는 것을 방지하고 unmodifiable 반환 + add/remove 메서드 제공. /encapsulate-collection으로 호출.
$npx -y skills add msbaek/msbaek-claude-plugins --skill encapsulate-collectionInstalls into the current project.
Run `npx skills use "https://github.com/msbaek/msbaek-claude-plugins" --skill "msbaek/msbaek-claude-plugins/encapsulate-collection"` 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/msbaek/msbaek-claude-plugins" that are relevant to the current task. Run `npx skills add "https://github.com/msbaek/msbaek-claude-plugins"` and select the relevant skills, then follow their instructions.