Design repos that make AI-built sites look premium

A short list of open GitHub design systems, skills and UI kits you can hand to Claude Code or Codex so AI-generated websites look polished instead of generic.

How to set it up

Open the post and pick one design skill or system (for example Superdesign or Better Design).
Add it to your coding agent the way the repo README says.
Ask the agent to redesign or build a page using that system before writing fresh CSS from scratch.

Shared by @heyrimsha on X. Summary by Bot Lodge; see the original post for full details. Added Yesterday

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