21st.dev MCP
By 21st.dev · Official
Find and work with React UI components from 21st.dev directly in your coding agent.
Give your coding agent a reusable set of guidelines for reviewing React and Next.js performance. It can use the skill’s instructions to identify potential improvements and guide code changes. Use it when building a component or reviewing an existing page to make performance considerations part of the work.
Use React Best Practices to review this Next.js route. Prioritize the most consequential performance findings, explain the evidence, and propose focused changes with a way to verify them.
Give your coding agent guidelines for reviewing interface code for accessibility, usability, and common web design issues. The skill helps structure a review and identify changes to consider. Use it to check a new component or an existing page before shipping.
Use Web Design Guidelines to review this form. Explain the most important accessibility and usability findings, then suggest focused improvements that preserve the design.