Hallmark: a design skill for coding agents that refuses to look AI-generated
Hallmark is a skill for Claude Code, Codex, Cursor and OpenCode. It picks three themes from a catalog of forty-eight, builds the page around what the visitor came to do, then checks the result in a real browser for the tells of machine-made pages: an eyebrow above every heading, tracked-capital labels, one coloured word in a headline. Open source under MIT.
Made by Nutlope and Together AI, not me.