Stops AI coding tools from generating generic website designs

Screenshot from the project’s own README · tap to enlarge
Hallmark is an open-source design skill for AI coding assistants like Claude Code and Cursor. It prevents common AI design clichés—such as awkward headlines and generic layouts—by enforcing 50 curated themes, real browser checks, and authentic photos.
Requires an existing AI coding agent like Claude Code or Cursor to run.
Not sure how to install, or if it’s safe? Read the beginner guide
Yes, Hallmark is completely free and licensed under the permissive MIT license.
It is open source (MIT license) with 54,535 GitHub stars, last updated 2026-11-11. Download only from the official link on this page, and scan the file before installing: see the safety checklist in our beginner guide.
No, Hallmark requires an existing AI coding assistant like Claude Code or Cursor, along with Node.js 18 or later to run.
Compiled from the project README. 54,535 GitHub stars (2026-11-13) · License MIT · Last update 2026-11-11