What is an AI design skill?
A skill is a folder holding a SKILL.md file, containing instructions an AI coding agent loads on demand when a task matches its description. A design skill carries taste: typography rules, spacing systems, motion principles, and explicit bans on the defaults that make AI output look templated. Unlike a prompt, which you paste once, a skill stays installed and fires automatically whenever relevant work comes up.
How are design skills different from design prompts?
A prompt is a single message you copy and paste for one task. A skill is persistent, sitting in your project and loading itself whenever the agent recognises a matching task. Use prompts when you want a specific output right now, and skills when you want every future output to follow the same standards. Most people run both: a skill for the house style, prompts for individual screens.
Do these skills only work with Claude?
No. SKILL.md is an open format, so these work across Claude Code, Cursor, Codex CLI, Gemini CLI and other harnesses that read the same structure. Anthropic publishes the spec in the anthropics/skills repository. A few skills call harness-specific scripts or sub-agents, and those parts degrade gracefully elsewhere, because the written guidance still applies even when the tooling does not.
How do I install a design skill?
Copy the skill's folder, the one containing SKILL.md, into .claude/skills in your project. Copy it into the same path in your home directory instead if you want it available everywhere. Restart your agent so it picks up the new skill. Some repositories also ship as installable plugins, so check the README of the specific repo, because install commands differ between them.
Which design skill should I install first?
Start with Anthropic's frontend-design. It is first-party, actively maintained, and it fixes the most common problem, which is output that reads as a generic template. Add impeccable next for a fuller design system, then emil-design-eng once you care about how interactions feel rather than just how screens look. Installing all twelve at once is counterproductive, because overlapping skills give the agent contradictory instructions.
Can too many skills make output worse?
Yes. Skills load into context when their description matches a task, so several overlapping design skills can fire together and pull in different directions, with one demanding brutalist maximalism while another enforces restrained minimalism. Pick one primary taste skill, add specialists for distinct jobs like motion or accessibility auditing, and remove anything you are not actively using.
Are these skills free to use?
Every repository on this page is public and free to read. Licences differ, and each card shows the one its repository publishes, so check that before shipping a skill's contents inside a commercial product. A repository marked as having no licence means the author published no explicit terms, which means default copyright applies and you should ask before redistributing it.
How do I know a skill is still maintained?
Check the last update date, which every card on this page shows. Skills are instruction text rather than compiled code, so an older skill is not automatically broken, but a repository untouched for many months is worth reading carefully before you rely on it. Star counts tell you a skill was popular once, while the update date tells you somebody still cares.