21st Ui Build

21st-dev/skill/skills/21st-ui-build

by 21st-dev15c7436c41dcNo license12 starsListed Oct 9, 2026Updated Oct 9, 2026Repository updated 4 weeks ago

Build or substantially change production UI using the current project's design context, existing components, and grounded 21st inspiration. Use when implementing a page, section, component, responsive redesign, or visual polish in an existing web project. Trigger for requests such as "build this UI", "implement this screen", "make this page production-ready", or "use 21st to create the interface". Use 21st-ui-explore first when the visual direction is intentionally undecided, and 21st-ui-review for critique-only work.

Instructions only

Add to a SourceWeft workspace

  1. Open the skill in your dashboard and add it to a workspace.
  2. Enable it for the chats that should use it.

This skill is instructions only: it ships no scripts to execute.

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Paste this prompt into Claude Code, Codex, Cursor or another agent that can run commands — or into SourceWeft chat. The agent reads this skill's install guide, shows you its source, license and scripts, and installs it with the SourceWeft CLI once you agree.

Read https://sourceweft.com/skills/gh-21st-dev-skill-21st-ui-build/install.md and install the skill it describes. Before installing, show me its source, license and whether it ships scripts, and wait for my OK. Ask me before changing anything else on my machine.

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Install it yourself from a terminal

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npx @sourceweft/cli skills install @21st-dev/21st-ui-build

Add --agent claude-code, codex, cursor or universal to choose which agent gets it (Claude Code by default).

Upstream installer — not verified by SourceWeft

The open-source skills installer fetches the same pinned commit, but does not check the files against the hashes SourceWeft recorded.

npx skills add https://github.com/21st-dev/skill/tree/15c7436c41dc88c54094f1be93ce53bda456b114/skills/21st-ui-build

Source and attribution

Source:21st-dev/skillinskills/21st-ui-buildat commit15c7436

License: No license

Content belongs to its original authors. SourceWeft indexes it from a public repository.

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