install error

[eduwhaaat]

i get error when i try to install into claude code:

claude plugin install github:hamen/material-3-skill

✘ Failed to install plugin "github:hamen/material-3-skill": Plugin "github:hamen/material-3-skill" not found in any configured marketplace

[lucaskfp]

same here

[PaidaxingTuT]

me too

[GaelleJoubert]

same