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21st.dev UI Build — Skill Setup & Guide | Toolfolio

Skills

Home/Skills/21st.dev UI Build

21st.dev UI Build

By 21st.dev · Official skill

What it does

Last verifiedOct 26, 2026

Help your agent build interface components using 21st.dev workflows. Use it when turning a product brief into an interface or adding a new component. It gives the agent a workflow for building the UI and refining it as your requirements change.

Learn more

How this skill helps: Turn a product brief into interface work with a reusable 21st.dev building workflow. It helps your agent work from your layout, interaction, and visual requirements.

When to use it

Use it when turning a product brief into an interface or adding a new component. It gives the agent a workflow for building the UI and refining it as your requirements change.

How to get started

Choose Copy for agent and paste it into your coding agent. Include the screen brief, design references, existing components, and your frontend stack. Ask the agent to read the linked skill instructions and check prerequisites before starting.

Try asking your agent

Use 21st.dev UI Build to create this screen in the existing project. Reuse our components and styling, and check the result at desktop and mobile sizes.

View source

Copy setup instructions to paste into your coding agent.