21st.dev Codex plugin (self-hosted marketplace): bundles the 21st-cli skill + the remote 21st MCP server.
Skill Claude CodeCodex
Generate and iterate on UI with 21st AI from the terminal via the 21st CLI (@21st-dev/cli): sketch a UI from a prompt, preview the variants in the browser, edit any variant in place with a natural-language change, and pull the final code into the project. Use whenever the user wants to BUILD / SKETCH new UI ("sketch a…
Skill Claude CodeCodex
Search, install and pull code from the 21st.dev catalog with the 21st CLI (@21st-dev/cli): find React/shadcn components, themes and templates, print a component's code or a theme's CSS, install an item into the project, or generate a new component with 21st AI. Use whenever the user says "search/find a component/theme…
Skill Claude CodeCodex
Look at the current project's design (its shadcn / Tailwind CSS variables and color tokens) and publish it to the 21st.dev community as a shareable theme, using 21st publish-theme. Use when the user says "publish my theme", "share our design as a 21st theme", "sync my design to 21st", "turn my globals.css into a…
Skill Claude CodeCodex
Publish your own work to 21st.dev and manage it from the terminal with the 21st CLI (@21st-dev/cli): publish a React component to a team library, publish a CSS theme or a template listing, edit / unpublish / delete your published items, list and reopen existing component work, and read/replace your public profile page…
Skill Codex
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…
Skill Codex
Explore and compare multiple meaningfully different UI directions grounded in the current project's design system and 21st inspiration. Use when the user wants options, variants, concepts, a redesign direction, visual experimentation, or is unsure how a new interface should look. Trigger for requests such as "show me…
Skill Codex
Review existing UI against the project's design context, accessibility expectations, responsive behavior, interaction quality, and high-confidence production rules. Use for UI audits, design QA, frontend review, accessibility review, consistency checks, or requests to find and safely fix visual defects. Trigger for…
Skill Codex
Create and edit a product, launch, demo, or social video from the current project with 21st video MCP tools. Open the editable project alongside the chat, apply small revision-aware edits, check rendered frames, offer visual variants, and export the result. Use when the user asks for a video, says "make a launch video…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: