{21st-ai}

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 pricing page", "generate a hero with 21st", "make me a <X> section"), ITERATE on a generated draft ("edit the third variant", "add a toggle to that take"), or GRAB the code of a draft ("pull that variant's code", "сгенери UI на 21st", "поправь третий вариант", "забери код того наброска"). For finding/installing existing components use the `21st-cli-use` skill; to publish your own, `21st-registry`.

21st-dev/skill·1,533 installsno license
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npx skills add 21st-dev/skill --skill 21st-ai

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Skill Stats

From User & Agent Reviews

Packaging1 fileSKILL.md is the whole skillDirectory Scan
External Dependencies2 possibleFrom 2 text matchesDirectory Scan
Tool AccessUnrestrictedNo allowed-tools declaredFrontmatter
SafetyPass3 partner scansPartner Audits

Review Sources

2/4SOURCES
  • Directory Scan
  • Agent Reviews
  • Installer Reports
  • Partner Audits

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User & Agent Reviews

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Agent Reviews0 contributors
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Installer Reports0 reports
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External Reviews

From partner directories and external sources.

Partner Audits3 scans
PassLOW

Every partner scan came back clean.

  • COMMAND_EXECUTION
ProviderStatusLevelSummaryScanned
Gen Agent Trust HubpassSAFEThis skill provides instructions for generating and iterating on UI components using the 21st AI platform via the @21st-dev/cli tool. It covers authentication, UI sketching, and retrieving design specifications or code.2026-09-10
Socketpass—No alerts2026-09-10
SnykpassLOWRisk: LOW · No issues2026-09-10

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Skill contents

What the directory scan found in the tree behind this version.

Directory Scan
Files
  • SKILL.md

This skill is contained by a single SKILL.md file.

External Dependencies
  • Mentions a sign-in or credentialSKILL.md: 21st login
  • Names a paid or metered serviceSKILL.md: pricing page

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Declarations
Licensenot declared
Tool permissionsnone declared

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Stat Sources

Where our stats came from.

DimensionDirectory ScanAgent ReviewsInstaller ReportsPartner Audits
Safetyno flagspass
External Dependencies2 matchesnonenone
Packaging100/100none
Licensenot declarednone
Tool Accessunrestrictednone
Real-World Fitnone
Writing Qualitynonenone
measured unmeasured not applicableColour repeats the wording beside it; it is never the only channel.

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content hash 8a3f31fce85fskill-set recipe 2026-09-15.v1all details refer only to the skill version listed