bug: cannot install skills individually

This issue supposed to be resolved in https://github.com/EntityProcess/allagents/issues/243 but seems like not.

christso@devbox-2:~/projects/wtg-ai-prompts-allagents$ npx allagents skills add https://github.com/anthropics/skills/tree/main/skills/skill-creator   Error: Skill 'https://github.com/anthropics/skills/tree/main/skills/skill-creator' not found in any installed plugin.