building-components
Guide for building modern, accessible, and composable UI components. Use when building new components, implementing accessibility, creating composable APIs, setting up design tokens, publishing to npm/registry, or writing component documentation.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/vercel/components.build --skill building-components- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads building-components automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
Security audits
Independent scans of the skill's instructions and bundled files.
SKILL.md
The instructions your agent reads when the skill is triggered.
Building Components
When to use this skill
Use when the user is:
- Building new UI components (primitives, components, blocks, templates)
- Implementing accessibility features (ARIA, keyboard navigation, focus management)
- Creating composable component APIs (slots, render props, controlled/uncontrolled state)
- Setting up design tokens and theming systems
- Publishing components to npm or a registry
- Writing component documentation
- Implementing polymorphism or as-child patterns
- Working with data attributes for styling/state
References
- definitions.mdx - Artifact taxonomy (primitives, components, blocks, templates)
- principles.mdx - Core principles for component design
- accessibility.mdx - ARIA, keyboard navigation, WCAG compliance
- composition.mdx - Composable component patterns
- as-child.mdx - The as-child pattern for element polymorphism
- polymorphism.mdx - Polymorphic component patterns
- types.mdx - TypeScript typing patterns for components
- state.mdx - Controlled vs uncontrolled state management
- data-attributes.mdx - Using data attributes for styling and state
- design-tokens.mdx - Design token systems and theming
- styling.mdx - Component styling approaches
- registry.mdx - shadcn-style registry distribution
- npm.mdx - Publishing components to npm
- marketplaces.mdx - Component marketplace distribution
- docs.mdx - Writing component documentation
FAQ
What does the building-components skill do?
Guide for building modern, accessible, and composable UI components. Use when building new components, implementing accessibility, creating composable APIs, setting up design tokens, publishing to npm/registry, or writing component documentation.
How do I install building-components?
Run npx skills add https://github.com/vercel/components.build --skill building-components in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/building-components/ (personal) or .claude/skills/building-components/ (project).
Which AI agents can use building-components?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is building-components safe to install?
Security partners have reviewed it: Gen Agent Trust Hub passed; Socket passed; Snyk passed; Runlayer passed; ZeroLeaks passed. As with any skill, read the SKILL.md and bundled scripts before installing.
Who maintains building-components?
It is published by vercel in vercel/components.build, and it is an official skill from the maker of the technology it covers. It has 14,709 recorded installs.
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