Bpx blueprint
Skill wilddogjp/openbpx/plugins/openbpx/skills/bpx-blueprint
OpenBPX: Blueprint Toolkit for Unreal EngineFrom the repository description
npx -y skills add wilddogjp/openbpx --skill bpx-blueprintAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.