feat(schemas): add repository settings and user restore token fields

- Add allow_forking, allow_merge_commit, allow_rebase_merge, allow_squash_merge fields to repo schemas
- Add delete_branch_on_merge field to repository models and schemas
- Add has_issues, has_pull_requests, has_wiki, homepage fields to repo schemas
- Add topics array field to repository schemas and models
- Add restore_token_expires_at and restore_token_hash fields to user schemas
- Remove UserAvatarResponse and UploadUserAvatarParams schemas completely
- Update CreateRepoParams and UpdateRepoParams with new repository settings
- Modify CreateTemplateParams and UpdateTemplateParams with notification template fields
- Remove description from SetBranchProtectionParams schema
- Delete App.css and auth.css files completely
- Update App.tsx with routing migration notes
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---
name: shadcn
description: Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any project with a components.json file. Also triggers for "shadcn init", "create an app with --preset", or "switch to --preset".
user-invocable: false
allowed-tools: Bash(npx shadcn@latest *), Bash(pnpm dlx shadcn@latest *), Bash(bunx --bun shadcn@latest *)
---
# shadcn/ui
A framework for building ui, components and design systems. Components are added as source code to the user's project via the CLI.
> **IMPORTANT:** Run all CLI commands using the project's package runner: `npx shadcn@latest`, `pnpm dlx shadcn@latest`, or `bunx --bun shadcn@latest` — based on the project's `packageManager`. Examples below use `npx shadcn@latest` but substitute the correct runner for the project.
## Current Project Context
```json
!`npx shadcn@latest info --json`
```
The JSON above contains the project config and installed components. Use `npx shadcn@latest docs <component>` to get documentation and example URLs for any component.
## Principles
1. **Use existing components first.** Use `npx shadcn@latest search` to check registries before writing custom UI. Check community registries too.
2. **Compose, don't reinvent.** Settings page = Tabs + Card + form controls. Dashboard = Sidebar + Card + Chart + Table.
3. **Use built-in variants before custom styles.** `variant="outline"`, `size="sm"`, etc.
4. **Use semantic colors.** `bg-primary`, `text-muted-foreground` — never raw values like `bg-blue-500`.
## Critical Rules
These rules are **always enforced**. Each links to a file with Incorrect/Correct code pairs.
### Styling & Tailwind → [styling.md](./rules/styling.md)
- **`className` for layout, not styling.** Never override component colors or typography.
- **No `space-x-*` or `space-y-*`.** Use `flex` with `gap-*`. For vertical stacks, `flex flex-col gap-*`.
- **Use `size-*` when width and height are equal.** `size-10` not `w-10 h-10`.
- **Use `truncate` shorthand.** Not `overflow-hidden text-ellipsis whitespace-nowrap`.
- **No manual `dark:` color overrides.** Use semantic tokens (`bg-background`, `text-muted-foreground`).
- **Use `cn()` for conditional classes.** Don't write manual template literal ternaries.
- **No manual `z-index` on overlay components.** Dialog, Sheet, Popover, etc. handle their own stacking.
### Forms & Inputs → [forms.md](./rules/forms.md)
- **Forms use `FieldGroup` + `Field`.** Never use raw `div` with `space-y-*` or `grid gap-*` for form layout.
- **`InputGroup` uses `InputGroupInput`/`InputGroupTextarea`.** Never raw `Input`/`Textarea` inside `InputGroup`.
- **Buttons inside inputs use `InputGroup` + `InputGroupAddon`.**
- **Option sets (27 choices) use `ToggleGroup`.** Don't loop `Button` with manual active state.
- **`FieldSet` + `FieldLegend` for grouping related checkboxes/radios.** Don't use a `div` with a heading.
- **Field validation uses `data-invalid` + `aria-invalid`.** `data-invalid` on `Field`, `aria-invalid` on the control. For disabled: `data-disabled` on `Field`, `disabled` on the control.
### Component Structure → [composition.md](./rules/composition.md)
- **Items always inside their Group.** `SelectItem``SelectGroup`. `DropdownMenuItem``DropdownMenuGroup`. `CommandItem``CommandGroup`.
- **Use `asChild` (radix) or `render` (base) for custom triggers.** Check `base` field from `npx shadcn@latest info`. → [base-vs-radix.md](./rules/base-vs-radix.md)
- **Dialog, Sheet, and Drawer always need a Title.** `DialogTitle`, `SheetTitle`, `DrawerTitle` required for accessibility. Use `className="sr-only"` if visually hidden.
- **Use full Card composition.** `CardHeader`/`CardTitle`/`CardDescription`/`CardContent`/`CardFooter`. Don't dump everything in `CardContent`.
- **Button has no `isPending`/`isLoading`.** Compose with `Spinner` + `data-icon` + `disabled`.
- **`TabsTrigger` must be inside `TabsList`.** Never render triggers directly in `Tabs`.
- **`Avatar` always needs `AvatarFallback`.** For when the image fails to load.
### Use Components, Not Custom Markup → [composition.md](./rules/composition.md)
- **Use existing components before custom markup.** Check if a component exists before writing a styled `div`.
- **Callouts use `Alert`.** Don't build custom styled divs.
- **Empty states use `Empty`.** Don't build custom empty state markup.
- **Toast via `sonner`.** Use `toast()` from `sonner`.
- **Use `Separator`** instead of `<hr>` or `<div className="border-t">`.
- **Use `Skeleton`** for loading placeholders. No custom `animate-pulse` divs.
- **Use `Badge`** instead of custom styled spans.
### Icons → [icons.md](./rules/icons.md)
- **Icons in `Button` use `data-icon`.** `data-icon="inline-start"` or `data-icon="inline-end"` on the icon.
- **No sizing classes on icons inside components.** Components handle icon sizing via CSS. No `size-4` or `w-4 h-4`.
- **Pass icons as objects, not string keys.** `icon={CheckIcon}`, not a string lookup.
### CLI
- **Never decode preset codes or build preset URLs manually.** Use `npx shadcn@latest preset decode <code>`, `preset url <code>`, or `preset open <code>`. For project-aware preset detection, use `npx shadcn@latest preset resolve`.
- **Apply preset codes directly with the CLI.** Use `npx shadcn@latest apply <code>` for existing projects, or `npx shadcn@latest init --preset <code>` when initializing.
## Key Patterns
These are the most common patterns that differentiate correct shadcn/ui code. For edge cases, see the linked rule files above.
```tsx
// Form layout: FieldGroup + Field, not div + Label.
<FieldGroup>
<Field>
<FieldLabel htmlFor="email">Email</FieldLabel>
<Input id="email" />
</Field>
</FieldGroup>
// Validation: data-invalid on Field, aria-invalid on the control.
<Field data-invalid>
<FieldLabel>Email</FieldLabel>
<Input aria-invalid />
<FieldDescription>Invalid email.</FieldDescription>
</Field>
// Icons in buttons: data-icon, no sizing classes.
<Button>
<SearchIcon data-icon="inline-start" />
Search
</Button>
// Spacing: gap-*, not space-y-*.
<div className="flex flex-col gap-4"> // correct
<div className="space-y-4"> // wrong
// Equal dimensions: size-*, not w-* h-*.
<Avatar className="size-10"> // correct
<Avatar className="w-10 h-10"> // wrong
// Status colors: Badge variants or semantic tokens, not raw colors.
<Badge variant="secondary">+20.1%</Badge> // correct
<span className="text-emerald-600">+20.1%</span> // wrong
```
## Component Selection
| Need | Use |
| -------------------------- | --------------------------------------------------------------------------------------------------- |
| Button/action | `Button` with appropriate variant |
| Form inputs | `Input`, `Select`, `Combobox`, `Switch`, `Checkbox`, `RadioGroup`, `Textarea`, `InputOTP`, `Slider` |
| Toggle between 25 options | `ToggleGroup` + `ToggleGroupItem` |
| Data display | `Table`, `Card`, `Badge`, `Avatar` |
| Navigation | `Sidebar`, `NavigationMenu`, `Breadcrumb`, `Tabs`, `Pagination` |
| Overlays | `Dialog` (modal), `Sheet` (side panel), `Drawer` (bottom sheet), `AlertDialog` (confirmation) |
| Feedback | `sonner` (toast), `Alert`, `Progress`, `Skeleton`, `Spinner` |
| Command palette | `Command` inside `Dialog` |
| Charts | `Chart` (wraps Recharts) |
| Layout | `Card`, `Separator`, `Resizable`, `ScrollArea`, `Accordion`, `Collapsible` |
| Empty states | `Empty` |
| Menus | `DropdownMenu`, `ContextMenu`, `Menubar` |
| Tooltips/info | `Tooltip`, `HoverCard`, `Popover` |
## Key Fields
The injected project context contains these key fields:
- **`aliases`** → use the actual alias prefix for imports (e.g. `@/`, `~/`), never hardcode.
- **`isRSC`** → when `true`, components using `useState`, `useEffect`, event handlers, or browser APIs need `"use client"` at the top of the file. Always reference this field when advising on the directive.
- **`tailwindVersion`** → `"v4"` uses `@theme inline` blocks; `"v3"` uses `tailwind.config.js`.
- **`tailwindCssFile`** → the global CSS file where custom CSS variables are defined. Always edit this file, never create a new one.
- **`style`** → component visual treatment (e.g. `nova`, `vega`).
- **`base`** → primitive library (`radix` or `base`). Affects component APIs and available props.
- **`iconLibrary`** → determines icon imports. Use `lucide-react` for `lucide`, `@tabler/icons-react` for `tabler`, etc. Never assume `lucide-react`.
- **`resolvedPaths`** → exact file-system destinations for components, utils, hooks, etc.
- **`framework`** → routing and file conventions (e.g. Next.js App Router vs Vite SPA).
- **`packageManager`** → use this for any non-shadcn dependency installs (e.g. `pnpm add date-fns` vs `npm install date-fns`).
- **`preset`** → resolved preset code and values for the current project. Use `npx shadcn@latest preset resolve --json` when you only need preset information.
See [cli.md — `info` command](./cli.md) for the full field reference.
## Component Docs, Examples, and Usage
Run `npx shadcn@latest docs <component>` to get the URLs for a component's documentation, examples, and API reference. Fetch these URLs to get the actual content.
```bash
npx shadcn@latest docs button dialog select
```
**When creating, fixing, debugging, or using a component, always run `npx shadcn@latest docs` and fetch the URLs first.** This ensures you're working with the correct API and usage patterns rather than guessing.
## Workflow
1. **Get project context** — already injected above. Run `npx shadcn@latest info` again if you need to refresh.
2. **Check installed components first** — before running `add`, always check the `components` list from project context or list the `resolvedPaths.ui` directory. Don't import components that haven't been added, and don't re-add ones already installed.
3. **Find components**`npx shadcn@latest search`.
4. **Get docs and examples** — run `npx shadcn@latest docs <component>` to get URLs, then fetch them. Use `npx shadcn@latest view` to browse registry items you haven't installed. To preview changes to installed components, use `npx shadcn@latest add --diff`.
5. **Install or update**`npx shadcn@latest add`. When updating existing components, use `--dry-run` and `--diff` to preview changes first (see [Updating Components](#updating-components) below).
6. **Fix imports in third-party components** — After adding components from community registries (e.g. `@bundui`, `@magicui`), check the added non-UI files for hardcoded import paths like `@/components/ui/...`. These won't match the project's actual aliases. Use `npx shadcn@latest info` to get the correct `ui` alias (e.g. `@workspace/ui/components`) and rewrite the imports accordingly. The CLI rewrites imports for its own UI files, but third-party registry components may use default paths that don't match the project.
7. **Review added components** — After adding a component or block from any registry, **always read the added files and verify they are correct**. Check for missing sub-components (e.g. `SelectItem` without `SelectGroup`), missing imports, incorrect composition, or violations of the [Critical Rules](#critical-rules). Also replace any icon imports with the project's `iconLibrary` from the project context (e.g. if the registry item uses `lucide-react` but the project uses `hugeicons`, swap the imports and icon names accordingly). Fix all issues before moving on.
8. **Registry must be explicit** — When the user asks to add a block or component, **do not guess the registry**. If no registry is specified (e.g. user says "add a login block" without specifying `@shadcn`, `@tailark`, `owner/repo`, etc.), ask which registry to use. Never default to a registry on behalf of the user.
9. **Switching presets** — Ask the user first: **overwrite**, **partial**, **merge**, or **skip**?
- **Inspect current preset**: `npx shadcn@latest preset resolve`. Use `--json` when you need structured values.
- **Inspect incoming preset**: `npx shadcn@latest preset decode <code>`. Use `preset url <code>` or `preset open <code>` to share or open the preset builder.
- **Overwrite**: `npx shadcn@latest apply <code>`. Overwrites detected components, fonts, and CSS variables.
- **Partial**: `npx shadcn@latest apply <code> --only theme,font`. Updates only the selected preset parts without reinstalling UI components. Supported values are `theme` and `font`; comma-separated combinations are allowed. `icon` is intentionally not supported, because icon changes may require full component reinstall and transforms.
- **Merge**: `npx shadcn@latest init --preset <code> --force --no-reinstall`, then run `npx shadcn@latest info` to list installed components, then for each installed component use `--dry-run` and `--diff` to [smart merge](#updating-components) it individually.
- **Skip**: `npx shadcn@latest init --preset <code> --force --no-reinstall`. Only updates config and CSS, leaves components as-is.
- **Important**: Always run preset commands inside the user's project directory. `apply` only works in an existing project with a `components.json` file. The CLI automatically preserves the current base (`base` vs `radix`) from `components.json`. If you must use a scratch/temp directory (e.g. for `--dry-run` comparisons), pass `--base <current-base>` explicitly — preset codes do not encode the base.
## Updating Components
When the user asks to update a component from upstream while keeping their local changes, use `--dry-run` and `--diff` to intelligently merge. **NEVER fetch raw files from GitHub manually — always use the CLI.**
1. Run `npx shadcn@latest add <component> --dry-run` to see all files that would be affected.
2. For each file, run `npx shadcn@latest add <component> --diff <file>` to see what changed upstream vs local.
3. Decide per file based on the diff:
- No local changes → safe to overwrite.
- Has local changes → read the local file, analyze the diff, and apply upstream updates while preserving local modifications.
- User says "just update everything" → use `--overwrite`, but confirm first.
4. **Never use `--overwrite` without the user's explicit approval.**
## Quick Reference
```bash
# Create a new project.
npx shadcn@latest init --name my-app --preset base-nova
npx shadcn@latest init --name my-app --preset a2r6bw --template vite
# Create a monorepo project.
npx shadcn@latest init --name my-app --preset base-nova --monorepo
npx shadcn@latest init --name my-app --preset base-nova --template next --monorepo
# Initialize existing project.
npx shadcn@latest init --preset base-nova
npx shadcn@latest init --defaults # shortcut: --template=next --preset=nova (base style implied)
# Apply a preset to an existing project.
npx shadcn@latest apply a2r6bw
npx shadcn@latest apply a2r6bw --only theme
npx shadcn@latest apply a2r6bw --only font
npx shadcn@latest apply a2r6bw --only theme,font
# Inspect preset codes and project preset state.
npx shadcn@latest preset decode a2r6bw
npx shadcn@latest preset url a2r6bw
npx shadcn@latest preset open a2r6bw
npx shadcn@latest preset resolve
npx shadcn@latest preset resolve --json
# Add components.
npx shadcn@latest add button card dialog
npx shadcn@latest add @magicui/shimmer-button
npx shadcn@latest add owner/repo/item
npx shadcn@latest add --all
# Preview changes before adding/updating.
npx shadcn@latest add button --dry-run
npx shadcn@latest add button --diff button.tsx
npx shadcn@latest add @acme/form --view button.tsx
npx shadcn@latest add owner/repo/item --dry-run
# Search registries.
npx shadcn@latest search @shadcn -q "sidebar"
npx shadcn@latest search @tailark -q "stats"
npx shadcn@latest search owner/repo -q "login"
npx shadcn@latest search # all configured registries
npx shadcn@latest search @shadcn -q "menu" -t ui # filter by item type
# Get component docs and example URLs.
npx shadcn@latest docs button dialog select
# View registry item details (for items not yet installed).
npx shadcn@latest view @shadcn/button
npx shadcn@latest view owner/repo/item
```
**Named presets:** `nova`, `vega`, `maia`, `lyra`, `mira`, `luma`
**Templates:** `next`, `vite`, `start`, `react-router`, `astro` (all support `--monorepo`) and `laravel` (not supported for monorepo)
**Preset codes:** Version-prefixed base62 strings (e.g. `a2r6bw` or `b0`), from [ui.shadcn.com](https://ui.shadcn.com).
## Detailed References
- [rules/forms.md](./rules/forms.md) — FieldGroup, Field, InputGroup, ToggleGroup, FieldSet, validation states
- [rules/composition.md](./rules/composition.md) — Groups, overlays, Card, Tabs, Avatar, Alert, Empty, Toast, Separator, Skeleton, Badge, Button loading
- [rules/icons.md](./rules/icons.md) — data-icon, icon sizing, passing icons as objects
- [rules/styling.md](./rules/styling.md) — Semantic colors, variants, className, spacing, size, truncate, dark mode, cn(), z-index
- [rules/base-vs-radix.md](./rules/base-vs-radix.md) — asChild vs render, Select, ToggleGroup, Slider, Accordion
- [cli.md](./cli.md) — Commands, flags, presets, templates
- [registry.md](./registry.md) — Authoring source registries, `include`, item definitions, dependencies, GitHub registry rules
- [customization.md](./customization.md) — Theming, CSS variables, extending components
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interface:
display_name: "shadcn/ui"
short_description: "Manages shadcn/ui components — adding, searching, fixing, debugging, styling, and composing UI."
icon_small: "./assets/shadcn-small.png"
icon_large: "./assets/shadcn.png"
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# shadcn CLI Reference
Configuration is read from `components.json`.
> **IMPORTANT:** Always run commands using the project's package runner: `npx shadcn@latest`, `pnpm dlx shadcn@latest`, or `bunx --bun shadcn@latest`. Check `packageManager` from project context to choose the right one. Examples below use `npx shadcn@latest` but substitute the correct runner for the project.
> **IMPORTANT:** Only use the flags documented below. Do not invent or guess flags — if a flag isn't listed here, it doesn't exist. The CLI auto-detects the package manager from the project's lockfile; there is no `--package-manager` flag.
## Contents
- Commands: init, apply, add (dry-run, smart merge), search, view, docs, info, build
- Templates: next, vite, start, react-router, astro
- Presets: named, code, URL formats and fields
- Switching presets
---
## Commands
### `init` — Initialize or create a project
```bash
npx shadcn@latest init [components...] [options]
```
Initializes shadcn/ui in an existing project or creates a new project (when `--name` is provided). Optionally installs components in the same step.
| Flag | Short | Description | Default |
| ----------------------- | ----- | --------------------------------------------------------- | ------- |
| `--template <template>` | `-t` | Template (next, start, vite, next-monorepo, react-router) | — |
| `--preset [name]` | `-p` | Preset configuration (named, code, or URL) | — |
| `--yes` | `-y` | Skip confirmation prompt | `true` |
| `--defaults` | `-d` | Use defaults (`--template=next --preset=base-nova`) | `false` |
| `--force` | `-f` | Force overwrite existing configuration | `false` |
| `--cwd <cwd>` | `-c` | Working directory | current |
| `--name <name>` | `-n` | Name for new project | — |
| `--silent` | `-s` | Mute output | `false` |
| `--rtl` | | Enable RTL support | — |
| `--reinstall` | | Re-install existing UI components | `false` |
| `--monorepo` | | Scaffold a monorepo project | — |
| `--no-monorepo` | | Skip the monorepo prompt | — |
`npx shadcn@latest create` is an alias for `npx shadcn@latest init`.
### `apply` — Apply a preset to an existing project
```bash
npx shadcn@latest apply [preset] [options]
```
Applies a preset to an existing project, overwriting preset-driven config, fonts, CSS variables, and detected UI components.
| Flag | Short | Description | Default |
| ------------------- | ----- | ------------------------------------------ | ------- |
| `--preset <preset>` | — | Preset configuration (named, code, or URL) | — |
| `--yes` | `-y` | Skip confirmation prompt | `false` |
| `--cwd <cwd>` | `-c` | Working directory | current |
| `--silent` | `-s` | Mute output | `false` |
`[preset]` is a shorthand for `--preset <preset>`. If both are provided, they must match.
If no preset is provided, the CLI offers to open the custom preset builder on `ui.shadcn.com/create`.
### `add` — Add components
> **IMPORTANT:** To compare local components against upstream or to preview changes, ALWAYS use `npx shadcn@latest add <component> --dry-run`, `--diff`, or `--view`. NEVER fetch raw files from GitHub or other sources manually. The CLI handles registry resolution, file paths, and CSS diffing automatically.
```bash
npx shadcn@latest add [components...] [options]
```
Accepts component names, registry-prefixed names (`@magicui/shimmer-button`),
GitHub item addresses (`owner/repo/item`), URLs, or local paths.
| Flag | Short | Description | Default |
| --------------- | ----- | -------------------------------------------------------------------------------------------------------------------- | ------- |
| `--yes` | `-y` | Skip confirmation prompt | `false` |
| `--overwrite` | `-o` | Overwrite existing files | `false` |
| `--cwd <cwd>` | `-c` | Working directory | current |
| `--all` | `-a` | Add all available components | `false` |
| `--path <path>` | `-p` | Target path for the component | — |
| `--silent` | `-s` | Mute output | `false` |
| `--dry-run` | | Preview all changes without writing files | `false` |
| `--diff [path]` | | Show diffs. Without a path, shows the first 5 files. With a path, shows that file only (implies `--dry-run`) | — |
| `--view [path]` | | Show file contents. Without a path, shows the first 5 files. With a path, shows that file only (implies `--dry-run`) | — |
#### Dry-Run Mode
Use `--dry-run` to preview what `add` would do without writing any files. `--diff` and `--view` both imply `--dry-run`.
```bash
# Preview all changes.
npx shadcn@latest add button --dry-run
# Show diffs for all files (top 5).
npx shadcn@latest add button --diff
# Show the diff for a specific file.
npx shadcn@latest add button --diff button.tsx
# Show contents for all files (top 5).
npx shadcn@latest add button --view
# Show the full content of a specific file.
npx shadcn@latest add button --view button.tsx
# Works with URLs too.
npx shadcn@latest add https://api.npoint.io/abc123 --dry-run
# Works with public GitHub registries too.
npx shadcn@latest add owner/repo/item --dry-run
# CSS diffs.
npx shadcn@latest add button --diff globals.css
```
**When to use dry-run:**
- When the user asks "what files will this add?" or "what will this change?" — use `--dry-run`.
- Before overwriting existing components — use `--diff` to preview the changes first.
- When the user wants to inspect component source code without installing — use `--view`.
- When checking what CSS changes would be made to `globals.css` — use `--diff globals.css`.
- When the user asks to review or audit third-party registry code before installing — use `--view` to inspect the source.
> **`npx shadcn@latest add --dry-run` vs `npx shadcn@latest view`:** Prefer `npx shadcn@latest add --dry-run/--diff/--view` over `npx shadcn@latest view` when the user wants to preview changes to their project. `npx shadcn@latest view` only shows raw registry metadata. `npx shadcn@latest add --dry-run` shows exactly what would happen in the user's project: resolved file paths, diffs against existing files, and CSS updates. Use `npx shadcn@latest view` only when the user wants to browse registry info without a project context.
#### Smart Merge from Upstream
See [Updating Components in SKILL.md](./SKILL.md#updating-components) for the full workflow.
### `search` — Search registries
```bash
npx shadcn@latest search [registries...] [options]
```
Fuzzy search across registries. Also aliased as `npx shadcn@latest list`.
Supports namespaces (`@acme`), public GitHub registry sources (`owner/repo`),
and registry catalog URLs. Without `-q`, lists all items. When no registries are
passed, searches every registry configured in `components.json`.
| Flag | Short | Description | Default |
| ------------------- | ----- | ------------------------------------------------- | ------- |
| `--query <query>` | `-q` | Search query | — |
| `--type <type>` | `-t` | Filter by item type (e.g. `ui`, `block`, `hook`); comma-separated | — |
| `--limit <number>` | `-l` | Max items to display | `100` |
| `--offset <number>` | `-o` | Items to skip | `0` |
| `--json` | | Output as JSON | `false` |
| `--cwd <cwd>` | `-c` | Working directory | current |
### `view` — View item details
```bash
npx shadcn@latest view <items...> [options]
```
Displays item info including file contents. Examples:
`npx shadcn@latest view @shadcn/button`,
`npx shadcn@latest view owner/repo/item`.
### `docs` — Get component documentation URLs
```bash
npx shadcn@latest docs <components...> [options]
```
Outputs resolved URLs for component documentation, examples, and API references. Accepts one or more component names. Fetch the URLs to get the actual content.
Example output for `npx shadcn@latest docs input button`:
```
base radix
input
docs https://ui.shadcn.com/docs/components/radix/input
examples https://raw.githubusercontent.com/.../examples/input-example.tsx
button
docs https://ui.shadcn.com/docs/components/radix/button
examples https://raw.githubusercontent.com/.../examples/button-example.tsx
```
Some components include an `api` link to the underlying library (e.g. `cmdk` for the command component).
### `diff` — Check for updates
Do not use this command. Use `npx shadcn@latest add --diff` instead.
### `info` — Project information
```bash
npx shadcn@latest info [options]
```
Displays project info and `components.json` configuration. Run this first to discover the project's framework, aliases, Tailwind version, and resolved paths.
| Flag | Short | Description | Default |
| ------------- | ----- | ----------------- | ------- |
| `--cwd <cwd>` | `-c` | Working directory | current |
**Project Info fields:**
| Field | Type | Meaning |
| -------------------- | --------- | ------------------------------------------------------------------ |
| `framework` | `string` | Detected framework (`next`, `vite`, `react-router`, `start`, etc.) |
| `frameworkVersion` | `string` | Framework version (e.g. `15.2.4`) |
| `isSrcDir` | `boolean` | Whether the project uses a `src/` directory |
| `isRSC` | `boolean` | Whether React Server Components are enabled |
| `isTsx` | `boolean` | Whether the project uses TypeScript |
| `tailwindVersion` | `string` | `"v3"` or `"v4"` |
| `tailwindConfigFile` | `string` | Path to the Tailwind config file |
| `tailwindCssFile` | `string` | Path to the global CSS file |
| `aliasPrefix` | `string` | Import alias prefix (e.g. `@`, `~`, `@/`) |
| `packageManager` | `string` | Detected package manager (`npm`, `pnpm`, `yarn`, `bun`) |
**Components.json fields:**
| Field | Type | Meaning |
| -------------------- | --------- | ------------------------------------------------------------------------------------------ |
| `base` | `string` | Primitive library (`radix` or `base`) — determines component APIs and available props |
| `style` | `string` | Visual style (e.g. `nova`, `vega`) |
| `rsc` | `boolean` | RSC flag from config |
| `tsx` | `boolean` | TypeScript flag |
| `tailwind.config` | `string` | Tailwind config path |
| `tailwind.css` | `string` | Global CSS path — this is where custom CSS variables go |
| `iconLibrary` | `string` | Icon library — determines icon import package (e.g. `lucide-react`, `@tabler/icons-react`) |
| `aliases.components` | `string` | Component import alias (e.g. `@/components`) |
| `aliases.utils` | `string` | Utils import alias (e.g. `@/lib/utils`) |
| `aliases.ui` | `string` | UI component alias (e.g. `@/components/ui`) |
| `aliases.lib` | `string` | Lib alias (e.g. `@/lib`) |
| `aliases.hooks` | `string` | Hooks alias (e.g. `@/hooks`) |
| `resolvedPaths` | `object` | Absolute file-system paths for each alias |
| `registries` | `object` | Configured custom registries |
**Links fields:**
The `info` output includes a **Links** section with templated URLs for component docs, source, and examples. For resolved URLs, use `npx shadcn@latest docs <component>` instead.
### `build` — Build a custom registry
```bash
npx shadcn@latest build [registry] [options]
```
Builds `registry.json` into individual JSON files for distribution. Default input: `./registry.json`, default output: `./public/r`.
For authoring rules, `include`, item definitions, `registryDependencies`, and
GitHub registry behavior, see [registry.md](./registry.md).
| Flag | Short | Description | Default |
| ----------------- | ----- | ----------------- | ------------ |
| `--output <path>` | `-o` | Output directory | `./public/r` |
| `--cwd <cwd>` | `-c` | Working directory | current |
---
## Templates
| Value | Framework | Monorepo support |
| -------------- | -------------- | ---------------- |
| `next` | Next.js | Yes |
| `vite` | Vite | Yes |
| `start` | TanStack Start | Yes |
| `react-router` | React Router | Yes |
| `astro` | Astro | Yes |
| `laravel` | Laravel | No |
All templates support monorepo scaffolding via the `--monorepo` flag. When passed, the CLI uses a monorepo-specific template directory (e.g. `next-monorepo`, `vite-monorepo`). When neither `--monorepo` nor `--no-monorepo` is passed, the CLI prompts interactively. Laravel does not support monorepo scaffolding.
---
## Presets
Three ways to specify a preset via `--preset`:
1. **Named:** `--preset nova` or `--preset lyra`
2. **Code:** `--preset a2r6bw` (version-prefixed base62 string, e.g. `a2r6bw` or `b0`)
3. **URL:** `--preset "https://ui.shadcn.com/init?base=radix&style=nova&..."`
> **IMPORTANT:** Never try to decode, fetch, or resolve preset codes manually. Preset codes are opaque — pass them directly to `npx shadcn@latest init --preset <code>` and let the CLI handle resolution.
> Use `npx shadcn@latest apply --preset <code>` when overwriting an existing project's preset.
## Switching Presets
Ask the user first: **overwrite**, **merge**, or **skip** existing components?
- **Overwrite / Re-install** → `npx shadcn@latest apply --preset <code>`. Overwrites all detected component files with the new preset styles. Use when the user hasn't customized components.
- **Merge** → `npx shadcn@latest init --preset <code> --force --no-reinstall`, then run `npx shadcn@latest info` to get the list of installed components and use the [smart merge workflow](./SKILL.md#updating-components) to update them one by one, preserving local changes. Use when the user has customized components.
- **Skip** → `npx shadcn@latest init --preset <code> --force --no-reinstall`. Only updates config and CSS variables, leaves existing components as-is.
Always run preset commands inside the user's project directory. `apply` only works in an existing project with a `components.json` file. The CLI automatically preserves the current base (`base` vs `radix`) from `components.json`. If you must use a scratch/temp directory (e.g. for `--dry-run` comparisons), pass `--base <current-base>` explicitly — preset codes do not encode the base.
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# Customization & Theming
Components reference semantic CSS variable tokens. Change the variables to change every component.
## Contents
- How it works (CSS variables → Tailwind utilities → components)
- Color variables and OKLCH format
- Dark mode setup
- Changing the theme (presets, CSS variables)
- Adding custom colors (Tailwind v3 and v4)
- Border radius
- Customizing components (variants, className, wrappers)
- Checking for updates
---
## How It Works
1. CSS variables defined in `:root` (light) and `.dark` (dark mode).
2. Tailwind maps them to utilities: `bg-primary`, `text-muted-foreground`, etc.
3. Components use these utilities — changing a variable changes all components that reference it.
---
## Color Variables
Every color follows the `name` / `name-foreground` convention. The base variable is for backgrounds, `-foreground` is for text/icons on that background.
| Variable | Purpose |
| -------------------------------------------- | -------------------------------- |
| `--background` / `--foreground` | Page background and default text |
| `--card` / `--card-foreground` | Card surfaces |
| `--primary` / `--primary-foreground` | Primary buttons and actions |
| `--secondary` / `--secondary-foreground` | Secondary actions |
| `--muted` / `--muted-foreground` | Muted/disabled states |
| `--accent` / `--accent-foreground` | Hover and accent states |
| `--destructive` / `--destructive-foreground` | Error and destructive actions |
| `--border` | Default border color |
| `--input` | Form input borders |
| `--ring` | Focus ring color |
| `--chart-1` through `--chart-5` | Chart/data visualization |
| `--sidebar-*` | Sidebar-specific colors |
| `--surface` / `--surface-foreground` | Secondary surface |
Colors use OKLCH: `--primary: oklch(0.205 0 0)` where values are lightness (01), chroma (0 = gray), and hue (0360).
---
## Dark Mode
Class-based toggle via `.dark` on the root element. In Next.js, use `next-themes`:
```tsx
import { ThemeProvider } from "next-themes"
<ThemeProvider attribute="class" defaultTheme="system" enableSystem>
{children}
</ThemeProvider>
```
---
## Changing the Theme
```bash
# Apply a preset code from ui.shadcn.com.
npx shadcn@latest apply --preset a2r6bw
# Positional shorthand also works.
npx shadcn@latest apply a2r6bw
# Switch to a named preset and overwrite existing components.
npx shadcn@latest apply --preset nova
# Preserve existing components instead.
npx shadcn@latest init --preset nova --force --no-reinstall
# Use a custom theme URL.
npx shadcn@latest apply --preset "https://ui.shadcn.com/init?base=radix&style=nova&theme=blue&..."
```
Or edit CSS variables directly in `globals.css`.
---
## Adding Custom Colors
Add variables to the file at `tailwindCssFile` from `npx shadcn@latest info` (typically `globals.css`). Never create a new CSS file for this.
```css
/* 1. Define in the global CSS file. */
:root {
--warning: oklch(0.84 0.16 84);
--warning-foreground: oklch(0.28 0.07 46);
}
.dark {
--warning: oklch(0.41 0.11 46);
--warning-foreground: oklch(0.99 0.02 95);
}
```
```css
/* 2a. Register with Tailwind v4 (@theme inline). */
@theme inline {
--color-warning: var(--warning);
--color-warning-foreground: var(--warning-foreground);
}
```
When `tailwindVersion` is `"v3"` (check via `npx shadcn@latest info`), register in `tailwind.config.js` instead:
```js
// 2b. Register with Tailwind v3 (tailwind.config.js).
module.exports = {
theme: {
extend: {
colors: {
warning: "oklch(var(--warning) / <alpha-value>)",
"warning-foreground":
"oklch(var(--warning-foreground) / <alpha-value>)",
},
},
},
}
```
```tsx
// 3. Use in components.
<div className="bg-warning text-warning-foreground">Warning</div>
```
---
## Border Radius
`--radius` controls border radius globally. Components derive values from it (`rounded-lg` = `var(--radius)`, `rounded-md` = `calc(var(--radius) - 2px)`).
---
## Customizing Components
See also: [rules/styling.md](./rules/styling.md) for Incorrect/Correct examples.
Prefer these approaches in order:
### 1. Built-in variants
```tsx
<Button variant="outline" size="sm">
Click
</Button>
```
### 2. Tailwind classes via `className`
```tsx
<Card className="mx-auto max-w-md">...</Card>
```
### 3. Add a new variant
Edit the component source to add a variant via `cva`:
```tsx
// components/ui/button.tsx
warning: "bg-warning text-warning-foreground hover:bg-warning/90",
```
### 4. Wrapper components
Compose shadcn/ui primitives into higher-level components:
```tsx
export function ConfirmDialog({ title, description, onConfirm, children }) {
return (
<AlertDialog>
<AlertDialogTrigger asChild>{children}</AlertDialogTrigger>
<AlertDialogContent>
<AlertDialogHeader>
<AlertDialogTitle>{title}</AlertDialogTitle>
<AlertDialogDescription>{description}</AlertDialogDescription>
</AlertDialogHeader>
<AlertDialogFooter>
<AlertDialogCancel>Cancel</AlertDialogCancel>
<AlertDialogAction onClick={onConfirm}>Confirm</AlertDialogAction>
</AlertDialogFooter>
</AlertDialogContent>
</AlertDialog>
)
}
```
---
## Checking for Updates
```bash
npx shadcn@latest add button --diff
```
To preview exactly what would change before updating, use `--dry-run` and `--diff`:
```bash
npx shadcn@latest add button --dry-run # see all affected files
npx shadcn@latest add button --diff button.tsx # see the diff for a specific file
```
See [Updating Components in SKILL.md](./SKILL.md#updating-components) for the full smart merge workflow.
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{
"skill_name": "shadcn",
"evals": [
{
"id": 1,
"prompt": "I'm building a Next.js app with shadcn/ui (base-nova preset, lucide icons). Create a settings form component with fields for: full name, email address, and notification preferences (email, SMS, push notifications as toggle options). Add validation states for required fields.",
"expected_output": "A React component using FieldGroup, Field, ToggleGroup, data-invalid/aria-invalid validation, gap-* spacing, and semantic colors.",
"files": [],
"expectations": [
"Uses FieldGroup and Field components for form layout instead of raw div with space-y",
"Uses Switch for independent on/off notification toggles (not looping Button with manual active state)",
"Uses data-invalid on Field and aria-invalid on the input control for validation states",
"Uses gap-* (e.g. gap-4, gap-6) instead of space-y-* or space-x-* for spacing",
"Uses semantic color tokens (e.g. bg-background, text-muted-foreground, text-destructive) instead of raw colors like bg-red-500",
"No manual dark: color overrides"
]
},
{
"id": 2,
"prompt": "Create a dialog component for editing a user profile. It should have the user's avatar at the top, input fields for name and bio, and Save/Cancel buttons with appropriate icons. Using shadcn/ui with radix-nova preset and tabler icons.",
"expected_output": "A React component with DialogTitle, Avatar+AvatarFallback, data-icon on icon buttons, no icon sizing classes, tabler icon imports.",
"files": [],
"expectations": [
"Includes DialogTitle for accessibility (visible or with sr-only class)",
"Avatar component includes AvatarFallback",
"Icons on buttons use the data-icon attribute (data-icon=\"inline-start\" or data-icon=\"inline-end\")",
"No sizing classes on icons inside components (no size-4, w-4, h-4, etc.)",
"Uses tabler icons (@tabler/icons-react) instead of lucide-react",
"Uses asChild for custom triggers (radix preset)"
]
},
{
"id": 3,
"prompt": "Create a dashboard component that shows 4 stat cards in a grid. Each card has a title, large number, percentage change badge, and a loading skeleton state. Using shadcn/ui with base-nova preset and lucide icons.",
"expected_output": "A React component with full Card composition, Skeleton for loading, Badge for changes, semantic colors, gap-* spacing.",
"files": [],
"expectations": [
"Uses full Card composition with CardHeader, CardTitle, CardContent (not dumping everything into CardContent)",
"Uses Skeleton component for loading placeholders instead of custom animate-pulse divs",
"Uses Badge component for percentage change instead of custom styled spans",
"Uses semantic color tokens instead of raw color values like bg-green-500 or text-red-600",
"Uses gap-* instead of space-y-* or space-x-* for spacing",
"Uses size-* when width and height are equal instead of separate w-* h-*"
]
}
]
}
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# shadcn MCP Server
The CLI includes an MCP server that lets AI assistants search, browse, view, and install items from registries.
---
## Setup
```bash
shadcn mcp # start the MCP server (stdio)
shadcn mcp init # write config for your editor
```
Editor config files:
| Editor | Config file |
| ----------- | ------------------------------- |
| Claude Code | `.mcp.json` |
| Cursor | `.cursor/mcp.json` |
| VS Code | `.vscode/mcp.json` |
| OpenCode | `opencode.json` |
| Codex | `~/.codex/config.toml` (manual) |
---
## Tools
> **Tip:** MCP tools handle registry operations (search, view, install). For project configuration (aliases, framework, Tailwind version), use `npx shadcn@latest info` — there is no MCP equivalent.
### `shadcn:get_project_registries`
Returns registry names from `components.json`. Errors if no `components.json` exists.
**Input:** none
### `shadcn:list_items_in_registries`
Lists all items from one or more registries. Registries can be configured
namespaces such as `@acme`, public GitHub sources such as `owner/repo`, or
registry catalog URLs. Omit `registries` to list from every registry configured
in `components.json`.
**Input:** `registries` (string[], optional — omit for all configured), `types` (string[], optional — e.g. `["ui", "block"]`), `limit` (number, optional, defaults to 100), `offset` (number, optional)
### `shadcn:search_items_in_registries`
Fuzzy search across registries. Registries can be configured namespaces, public
GitHub sources, or registry catalog URLs. Omit `registries` to search every
registry configured in `components.json` — e.g. "find me a hero" across all
configured registries.
**Input:** `registries` (string[], optional — omit for all configured), `query` (string), `types` (string[], optional — e.g. `["ui", "block"]`), `limit` (number, optional, defaults to 100), `offset` (number, optional)
### `shadcn:view_items_in_registries`
View item details including full file contents.
**Input:** `items` (string[]) — e.g.
`["@shadcn/button", "@shadcn/card", "owner/repo/item"]`
### `shadcn:get_item_examples_from_registries`
Find usage examples and demos with source code. Omit `registries` to search
every registry configured in `components.json`.
**Input:** `registries` (string[], optional — omit for all configured), `query` (string) — e.g. `"accordion-demo"`, `"button example"`
### `shadcn:get_add_command_for_items`
Returns the CLI install command.
**Input:** `items` (string[]) — e.g. `["@shadcn/button"]`
### `shadcn:get_audit_checklist`
Returns a checklist for verifying components (imports, deps, lint, TypeScript).
**Input:** none
---
## Configuring Registries
Namespaced and authenticated registries are set in `components.json`. The
`@shadcn` registry is always built-in. Public GitHub registries can also be used
directly as `owner/repo` registry sources when the repository has a root
`registry.json`; they do not need `components.json` configuration.
```json
{
"registries": {
"@acme": "https://acme.com/r/{name}.json",
"@private": {
"url": "https://private.com/r/{name}.json",
"headers": { "Authorization": "Bearer ${MY_TOKEN}" }
}
}
}
```
- Names must start with `@`.
- URLs must contain `{name}`.
- `${VAR}` references are resolved from environment variables.
Community registry index: `https://ui.shadcn.com/r/registries.json`
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# Registry Authoring and Addresses
Use this reference when the user wants to create, fix, publish, or reason about
a shadcn registry.
## Mental Model
A registry has two forms:
- **Source registry**: an authored `registry.json` in a project or repository.
It may use `include` and file paths that point at source files.
- **Built registry**: generated JSON files served to CLI consumers, usually
from `public/r`. Use `npx shadcn@latest build` to create this form.
The CLI installer consumes registry item payloads. A source registry is a way to
author those payloads from real files.
Registry items are not limited to React components. They can distribute
components, hooks, utilities, design tokens, pages, config files, docs, rules,
workflows, templates, MCP files, and other project files.
## Root `registry.json`
The root registry file should define registry metadata and either `items` or
`include`.
```json
{
"$schema": "https://ui.shadcn.com/schema/registry.json",
"name": "acme",
"homepage": "https://acme.com",
"items": [
{
"name": "absolute-url",
"type": "registry:lib",
"title": "Absolute URL",
"description": "A utility to turn any path into an absolute URL.",
"files": [
{
"path": "lib/absolute-url.ts",
"type": "registry:lib"
}
]
}
]
}
```
Root registry rules:
- Root `registry.json` must include `name` and `homepage`.
- `items` is an array of registry item definitions.
- `include` may be used to split the source registry into multiple files.
- Included registry files may omit `name` and `homepage`.
## Include
Use `include` to keep large registries modular.
```json
{
"$schema": "https://ui.shadcn.com/schema/registry.json",
"name": "acme",
"homepage": "https://acme.com",
"include": ["registry/ui/registry.json", "registry/blocks/registry.json"]
}
```
Include rules:
- Include paths are relative to the `registry.json` that declares them.
- Include paths must explicitly point to a `registry.json` file.
- Do not use remote URLs, absolute paths, or parent traversal (`..`).
- Item file paths are relative to the registry file that declares the item.
- Duplicate item names fail across the resolved registry.
Example included file:
```json
{
"items": [
{
"name": "button",
"type": "registry:ui",
"files": [
{
"path": "button.tsx",
"type": "registry:ui"
}
]
}
]
}
```
If this file is at `registry/ui/registry.json`, then `button.tsx` is read from
`registry/ui/button.tsx`, and the built item path is emitted relative to the
root registry.
## Item Definitions
Common item fields:
```json
{
"name": "login-form",
"type": "registry:block",
"title": "Login Form",
"description": "A login form with email and password fields.",
"dependencies": ["zod"],
"registryDependencies": ["button", "input", "label"],
"files": [
{
"path": "blocks/login-form.tsx",
"type": "registry:block"
}
],
"cssVars": {
"light": {
"brand": "oklch(0.62 0.18 250)"
},
"dark": {
"brand": "oklch(0.72 0.16 250)"
}
}
}
```
Important fields:
- `name`: the installable item name. It is not necessarily a file path.
- `type`: one of the registry item types, such as `registry:ui`,
`registry:block`, `registry:lib`, `registry:hook`, `registry:file`,
`registry:page`, `registry:theme`, `registry:style`, `registry:font`, or
`registry:item`.
- `files`: source files copied or generated by the item.
- `dependencies`: npm runtime dependencies.
- `devDependencies`: npm development dependencies.
- `registryDependencies`: other registry items required by this item.
- `cssVars`, `css`, `tailwind`, `envVars`, and `docs`: optional install-time
additions.
File rules:
- File paths are relative to the declaring `registry.json`.
- `registry:file` and `registry:page` files require a `target`.
- Do not use remote file URLs in source registry file paths.
- Keep source files copy-pasteable: no hidden app-only imports.
## Registry Dependencies
`registryDependencies` entries are item addresses, not file paths.
```json
{
"name": "login-form",
"type": "registry:block",
"registryDependencies": ["button", "@acme/input", "acme/ui/card#v1.2.0"],
"files": [
{
"path": "blocks/login-form.tsx",
"type": "registry:block"
}
]
}
```
Dependency rules:
- Bare names such as `"button"` mean official shadcn items.
- Bare names never mean same-registry or same-repository items.
- Namespaced dependencies use `@namespace/item-name`.
- GitHub dependencies use `owner/repo/item-name`.
- Pin GitHub dependencies with `owner/repo/item-name#ref` when needed.
- Refs are not inherited. If `owner/repo/foo#v2` depends on `bar` from the same
repo at `v2`, write `owner/repo/bar#v2`.
- Do not use relative dependencies such as `"./bar"`.
## Address Schemes
When reasoning about a registry item string, classify it first.
| Address | Scheme | Meaning |
| ----------------------------------- | --------- | ------------------------------------------------------------ |
| `button` | shadcn | Official shadcn item named `button`. |
| `@acme/button` | namespace | Item `button` from configured registry `@acme`. |
| `@acme/ui/button` | namespace | Item `ui/button` from configured registry `@acme`. |
| `https://example.com/r/button.json` | url | Built registry item JSON at that URL. |
| `./button.json` | file | Built registry item JSON on disk. |
| `acme/ui/button` | github | Item `button` from GitHub repo `acme/ui`. |
| `acme/ui/forms/login#main` | github | Item `forms/login` from GitHub repo `acme/ui` at ref `main`. |
For namespace and GitHub addresses, slashful item names are allowed and are item
names, not file paths. Addresses ending in `.json` keep file-address
precedence, so `acme/ui/data/schema.json` is treated as a file path, not a
GitHub item address.
## GitHub Registries
A public GitHub repository can act as a source registry when it has a root
`registry.json`.
```txt
owner/repo/item-name[#ref]
```
Rules:
- The first two path segments are GitHub owner and repo.
- All remaining path segments are the registry item name.
- The source entrypoint is always root `registry.json`.
- GitHub registries are source registries consumed directly by the CLI. They do
not require `shadcn build` or generated item JSON files.
- `include` follows the same source-registry rules as local registries.
- Currently, GitHub addresses support public `github.com` repositories only.
- Private repos and GitHub Enterprise require explicit product decisions.
When implementing GitHub registry fetching, resolve refs to a commit SHA before
reading source files. Do not read moving refs directly from
`raw.githubusercontent.com`, because branch-like refs can be cached for several
minutes.
Preferred flow:
```txt
owner/repo[#ref]
-> resolve ref with git ls-remote
-> commit SHA
-> read https://raw.githubusercontent.com/{owner}/{repo}/{sha}/registry.json
-> read includes and item files from the same SHA
```
This keeps a command on one consistent repository snapshot.
Full 40-character commit SHAs are already stable and can be used directly.
Branches, tags, and short refs require Git so the CLI can resolve them to a
commit SHA first.
## Build and Verify
Use the CLI to build source registries:
```bash
npx shadcn@latest build
npx shadcn@latest build registry.json --output public/r
```
Use CLI commands to inspect the result:
```bash
npx shadcn@latest list @acme
npx shadcn@latest search @acme -q "login"
npx shadcn@latest view @acme/login-form
npx shadcn@latest add @acme/login-form --dry-run
npx shadcn@latest registry validate ./registry.json
```
Use GitHub addresses directly for public GitHub registries:
```bash
npx shadcn@latest list owner/repo
npx shadcn@latest search owner/repo -q "login"
npx shadcn@latest view owner/repo/item
npx shadcn@latest add owner/repo/item --dry-run
npx shadcn@latest registry validate owner/repo
```
When working on registry implementation in the shadcn/ui codebase:
- Keep address parsing pure and testable.
- Do not add side effects to validators.
- Preserve existing behavior for official shadcn, namespace, URL, and file
schemes.
- Add tests for address parsing, source loading, dependency resolution, list,
search, view, and add paths.
- Prefer small source-reader abstractions over a plugin system until there are
multiple real providers.
@@ -0,0 +1,306 @@
# Base vs Radix
API differences between `base` and `radix`. Check the `base` field from `npx shadcn@latest info`.
## Contents
- Composition: asChild vs render
- Button / trigger as non-button element
- Select (items prop, placeholder, positioning, multiple, object values)
- ToggleGroup (type vs multiple)
- Slider (scalar vs array)
- Accordion (type and defaultValue)
---
## Composition: asChild (radix) vs render (base)
Radix uses `asChild` to replace the default element. Base uses `render`. Don't wrap triggers in extra elements.
**Incorrect:**
```tsx
<DialogTrigger>
<div>
<Button>Open</Button>
</div>
</DialogTrigger>
```
**Correct (radix):**
```tsx
<DialogTrigger asChild>
<Button>Open</Button>
</DialogTrigger>
```
**Correct (base):**
```tsx
<DialogTrigger render={<Button />}>Open</DialogTrigger>
```
This applies to all trigger and close components: `DialogTrigger`, `SheetTrigger`, `AlertDialogTrigger`, `DropdownMenuTrigger`, `PopoverTrigger`, `TooltipTrigger`, `CollapsibleTrigger`, `DialogClose`, `SheetClose`, `NavigationMenuLink`, `BreadcrumbLink`, `SidebarMenuButton`, `Badge`, `Item`.
---
## Button / trigger as non-button element (base only)
When `render` changes an element to a non-button (`<a>`, `<span>`), add `nativeButton={false}`.
**Incorrect (base):** missing `nativeButton={false}`.
```tsx
<Button render={<a href="/docs" />}>Read the docs</Button>
```
**Correct (base):**
```tsx
<Button render={<a href="/docs" />} nativeButton={false}>
Read the docs
</Button>
```
**Correct (radix):**
```tsx
<Button asChild>
<a href="/docs">Read the docs</a>
</Button>
```
Same for triggers whose `render` is not a `Button`:
```tsx
// base.
<PopoverTrigger render={<InputGroupAddon />} nativeButton={false}>
Pick date
</PopoverTrigger>
```
---
## Select
**items prop (base only).** Base requires an `items` prop on the root. Radix uses inline JSX only.
**Incorrect (base):**
```tsx
<Select>
<SelectTrigger><SelectValue placeholder="Select a fruit" /></SelectTrigger>
</Select>
```
**Correct (base):**
```tsx
const items = [
{ label: "Select a fruit", value: null },
{ label: "Apple", value: "apple" },
{ label: "Banana", value: "banana" },
]
<Select items={items}>
<SelectTrigger>
<SelectValue />
</SelectTrigger>
<SelectContent>
<SelectGroup>
{items.map((item) => (
<SelectItem key={item.value} value={item.value}>{item.label}</SelectItem>
))}
</SelectGroup>
</SelectContent>
</Select>
```
**Correct (radix):**
```tsx
<Select>
<SelectTrigger>
<SelectValue placeholder="Select a fruit" />
</SelectTrigger>
<SelectContent>
<SelectGroup>
<SelectItem value="apple">Apple</SelectItem>
<SelectItem value="banana">Banana</SelectItem>
</SelectGroup>
</SelectContent>
</Select>
```
**Placeholder.** Base uses a `{ value: null }` item in the items array. Radix uses `<SelectValue placeholder="...">`.
**Content positioning.** Base uses `alignItemWithTrigger`. Radix uses `position`.
```tsx
// base.
<SelectContent alignItemWithTrigger={false} side="bottom">
// radix.
<SelectContent position="popper">
```
---
## Select — multiple selection and object values (base only)
Base supports `multiple`, render-function children on `SelectValue`, and object values with `itemToStringValue`. Radix is single-select with string values only.
**Correct (base — multiple selection):**
```tsx
<Select items={items} multiple defaultValue={[]}>
<SelectTrigger>
<SelectValue>
{(value: string[]) => value.length === 0 ? "Select fruits" : `${value.length} selected`}
</SelectValue>
</SelectTrigger>
...
</Select>
```
**Correct (base — object values):**
```tsx
<Select defaultValue={plans[0]} itemToStringValue={(plan) => plan.name}>
<SelectTrigger>
<SelectValue>{(value) => value.name}</SelectValue>
</SelectTrigger>
...
</Select>
```
---
## ToggleGroup
Base uses a `multiple` boolean prop. Radix uses `type="single"` or `type="multiple"`.
**Incorrect (base):**
```tsx
<ToggleGroup type="single" defaultValue="daily">
<ToggleGroupItem value="daily">Daily</ToggleGroupItem>
</ToggleGroup>
```
**Correct (base):**
```tsx
// Single (no prop needed), defaultValue is always an array.
<ToggleGroup defaultValue={["daily"]} spacing={2}>
<ToggleGroupItem value="daily">Daily</ToggleGroupItem>
<ToggleGroupItem value="weekly">Weekly</ToggleGroupItem>
</ToggleGroup>
// Multi-selection.
<ToggleGroup multiple>
<ToggleGroupItem value="bold">Bold</ToggleGroupItem>
<ToggleGroupItem value="italic">Italic</ToggleGroupItem>
</ToggleGroup>
```
**Correct (radix):**
```tsx
// Single, defaultValue is a string.
<ToggleGroup type="single" defaultValue="daily" spacing={2}>
<ToggleGroupItem value="daily">Daily</ToggleGroupItem>
<ToggleGroupItem value="weekly">Weekly</ToggleGroupItem>
</ToggleGroup>
// Multi-selection.
<ToggleGroup type="multiple">
<ToggleGroupItem value="bold">Bold</ToggleGroupItem>
<ToggleGroupItem value="italic">Italic</ToggleGroupItem>
</ToggleGroup>
```
**Controlled single value:**
```tsx
// base — wrap/unwrap arrays.
const [value, setValue] = React.useState("normal")
<ToggleGroup value={[value]} onValueChange={(v) => setValue(v[0])}>
// radix — plain string.
const [value, setValue] = React.useState("normal")
<ToggleGroup type="single" value={value} onValueChange={setValue}>
```
---
## Slider
Base accepts a plain number for a single thumb. Radix always requires an array.
**Incorrect (base):**
```tsx
<Slider defaultValue={[50]} max={100} step={1} />
```
**Correct (base):**
```tsx
<Slider defaultValue={50} max={100} step={1} />
```
**Correct (radix):**
```tsx
<Slider defaultValue={[50]} max={100} step={1} />
```
Both use arrays for range sliders. Controlled `onValueChange` in base may need a cast:
```tsx
// base.
const [value, setValue] = React.useState([0.3, 0.7])
<Slider value={value} onValueChange={(v) => setValue(v as number[])} />
// radix.
const [value, setValue] = React.useState([0.3, 0.7])
<Slider value={value} onValueChange={setValue} />
```
---
## Accordion
Radix requires `type="single"` or `type="multiple"` and supports `collapsible`. `defaultValue` is a string. Base uses no `type` prop, uses `multiple` boolean, and `defaultValue` is always an array.
**Incorrect (base):**
```tsx
<Accordion type="single" collapsible defaultValue="item-1">
<AccordionItem value="item-1">...</AccordionItem>
</Accordion>
```
**Correct (base):**
```tsx
<Accordion defaultValue={["item-1"]}>
<AccordionItem value="item-1">...</AccordionItem>
</Accordion>
// Multi-select.
<Accordion multiple defaultValue={["item-1", "item-2"]}>
<AccordionItem value="item-1">...</AccordionItem>
<AccordionItem value="item-2">...</AccordionItem>
</Accordion>
```
**Correct (radix):**
```tsx
<Accordion type="single" collapsible defaultValue="item-1">
<AccordionItem value="item-1">...</AccordionItem>
</Accordion>
```
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# Component Composition
## Contents
- Items always inside their Group component
- Callouts use Alert
- Empty states use Empty component
- Toast notifications use sonner
- Choosing between overlay components
- Dialog, Sheet, and Drawer always need a Title
- Card structure
- Button has no isPending or isLoading prop
- TabsTrigger must be inside TabsList
- Avatar always needs AvatarFallback
- Use Separator instead of raw hr or border divs
- Use Skeleton for loading placeholders
- Use Badge instead of custom styled spans
---
## Items always inside their Group component
Never render items directly inside the content container.
**Incorrect:**
```tsx
<SelectContent>
<SelectItem value="apple">Apple</SelectItem>
<SelectItem value="banana">Banana</SelectItem>
</SelectContent>
```
**Correct:**
```tsx
<SelectContent>
<SelectGroup>
<SelectItem value="apple">Apple</SelectItem>
<SelectItem value="banana">Banana</SelectItem>
</SelectGroup>
</SelectContent>
```
This applies to all group-based components:
| Item | Group |
|------|-------|
| `SelectItem`, `SelectLabel` | `SelectGroup` |
| `DropdownMenuItem`, `DropdownMenuLabel`, `DropdownMenuSub` | `DropdownMenuGroup` |
| `MenubarItem` | `MenubarGroup` |
| `ContextMenuItem` | `ContextMenuGroup` |
| `CommandItem` | `CommandGroup` |
---
## Callouts use Alert
```tsx
<Alert>
<AlertTitle>Warning</AlertTitle>
<AlertDescription>Something needs attention.</AlertDescription>
</Alert>
```
---
## Empty states use Empty component
```tsx
<Empty>
<EmptyHeader>
<EmptyMedia variant="icon"><FolderIcon /></EmptyMedia>
<EmptyTitle>No projects yet</EmptyTitle>
<EmptyDescription>Get started by creating a new project.</EmptyDescription>
</EmptyHeader>
<EmptyContent>
<Button>Create Project</Button>
</EmptyContent>
</Empty>
```
---
## Toast notifications use sonner
```tsx
import { toast } from "sonner"
toast.success("Changes saved.")
toast.error("Something went wrong.")
toast("File deleted.", {
action: { label: "Undo", onClick: () => undoDelete() },
})
```
---
## Choosing between overlay components
| Use case | Component |
|----------|-----------|
| Focused task that requires input | `Dialog` |
| Destructive action confirmation | `AlertDialog` |
| Side panel with details or filters | `Sheet` |
| Mobile-first bottom panel | `Drawer` |
| Quick info on hover | `HoverCard` |
| Small contextual content on click | `Popover` |
---
## Dialog, Sheet, and Drawer always need a Title
`DialogTitle`, `SheetTitle`, `DrawerTitle` are required for accessibility. Use `className="sr-only"` if visually hidden.
```tsx
<DialogContent>
<DialogHeader>
<DialogTitle>Edit Profile</DialogTitle>
<DialogDescription>Update your profile.</DialogDescription>
</DialogHeader>
...
</DialogContent>
```
---
## Card structure
Use full composition — don't dump everything into `CardContent`:
```tsx
<Card>
<CardHeader>
<CardTitle>Team Members</CardTitle>
<CardDescription>Manage your team.</CardDescription>
</CardHeader>
<CardContent>...</CardContent>
<CardFooter>
<Button>Invite</Button>
</CardFooter>
</Card>
```
---
## Button has no isPending or isLoading prop
Compose with `Spinner` + `data-icon` + `disabled`:
```tsx
<Button disabled>
<Spinner data-icon="inline-start" />
Saving...
</Button>
```
---
## TabsTrigger must be inside TabsList
Never render `TabsTrigger` directly inside `Tabs` — always wrap in `TabsList`:
```tsx
<Tabs defaultValue="account">
<TabsList>
<TabsTrigger value="account">Account</TabsTrigger>
<TabsTrigger value="password">Password</TabsTrigger>
</TabsList>
<TabsContent value="account">...</TabsContent>
</Tabs>
```
---
## Avatar always needs AvatarFallback
Always include `AvatarFallback` for when the image fails to load:
```tsx
<Avatar>
<AvatarImage src="/avatar.png" alt="User" />
<AvatarFallback>JD</AvatarFallback>
</Avatar>
```
---
## Use existing components instead of custom markup
| Instead of | Use |
|---|---|
| `<hr>` or `<div className="border-t">` | `<Separator />` |
| `<div className="animate-pulse">` with styled divs | `<Skeleton className="h-4 w-3/4" />` |
| `<span className="rounded-full bg-green-100 ...">` | `<Badge variant="secondary">` |
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# Forms & Inputs
## Contents
- Forms use FieldGroup + Field
- InputGroup requires InputGroupInput/InputGroupTextarea
- Buttons inside inputs use InputGroup + InputGroupAddon
- Option sets (27 choices) use ToggleGroup
- FieldSet + FieldLegend for grouping related fields
- Field validation and disabled states
---
## Forms use FieldGroup + Field
Always use `FieldGroup` + `Field` — never raw `div` with `space-y-*`:
```tsx
<FieldGroup>
<Field>
<FieldLabel htmlFor="email">Email</FieldLabel>
<Input id="email" type="email" />
</Field>
<Field>
<FieldLabel htmlFor="password">Password</FieldLabel>
<Input id="password" type="password" />
</Field>
</FieldGroup>
```
Use `Field orientation="horizontal"` for settings pages. Use `FieldLabel className="sr-only"` for visually hidden labels.
**Choosing form controls:**
- Simple text input → `Input`
- Dropdown with predefined options → `Select`
- Searchable dropdown → `Combobox`
- Native HTML select (no JS) → `native-select`
- Boolean toggle → `Switch` (for settings) or `Checkbox` (for forms)
- Single choice from few options → `RadioGroup`
- Toggle between 25 options → `ToggleGroup` + `ToggleGroupItem`
- OTP/verification code → `InputOTP`
- Multi-line text → `Textarea`
---
## InputGroup requires InputGroupInput/InputGroupTextarea
Never use raw `Input` or `Textarea` inside an `InputGroup`.
**Incorrect:**
```tsx
<InputGroup>
<Input placeholder="Search..." />
</InputGroup>
```
**Correct:**
```tsx
import { InputGroup, InputGroupInput } from "@/components/ui/input-group"
<InputGroup>
<InputGroupInput placeholder="Search..." />
</InputGroup>
```
---
## Buttons inside inputs use InputGroup + InputGroupAddon
Never place a `Button` directly inside or adjacent to an `Input` with custom positioning.
**Incorrect:**
```tsx
<div className="relative">
<Input placeholder="Search..." className="pr-10" />
<Button className="absolute right-0 top-0" size="icon">
<SearchIcon />
</Button>
</div>
```
**Correct:**
```tsx
import { InputGroup, InputGroupInput, InputGroupAddon } from "@/components/ui/input-group"
<InputGroup>
<InputGroupInput placeholder="Search..." />
<InputGroupAddon>
<Button size="icon">
<SearchIcon data-icon="inline-start" />
</Button>
</InputGroupAddon>
</InputGroup>
```
---
## Option sets (27 choices) use ToggleGroup
Don't manually loop `Button` components with active state.
**Incorrect:**
```tsx
const [selected, setSelected] = useState("daily")
<div className="flex gap-2">
{["daily", "weekly", "monthly"].map((option) => (
<Button
key={option}
variant={selected === option ? "default" : "outline"}
onClick={() => setSelected(option)}
>
{option}
</Button>
))}
</div>
```
**Correct:**
```tsx
import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group"
<ToggleGroup spacing={2}>
<ToggleGroupItem value="daily">Daily</ToggleGroupItem>
<ToggleGroupItem value="weekly">Weekly</ToggleGroupItem>
<ToggleGroupItem value="monthly">Monthly</ToggleGroupItem>
</ToggleGroup>
```
Combine with `Field` for labelled toggle groups:
```tsx
<Field orientation="horizontal">
<FieldTitle id="theme-label">Theme</FieldTitle>
<ToggleGroup aria-labelledby="theme-label" spacing={2}>
<ToggleGroupItem value="light">Light</ToggleGroupItem>
<ToggleGroupItem value="dark">Dark</ToggleGroupItem>
<ToggleGroupItem value="system">System</ToggleGroupItem>
</ToggleGroup>
</Field>
```
> **Note:** `defaultValue` and `type`/`multiple` props differ between base and radix. See [base-vs-radix.md](./base-vs-radix.md#togglegroup).
---
## FieldSet + FieldLegend for grouping related fields
Use `FieldSet` + `FieldLegend` for related checkboxes, radios, or switches — not `div` with a heading:
```tsx
<FieldSet>
<FieldLegend variant="label">Preferences</FieldLegend>
<FieldDescription>Select all that apply.</FieldDescription>
<FieldGroup className="gap-3">
<Field orientation="horizontal">
<Checkbox id="dark" />
<FieldLabel htmlFor="dark" className="font-normal">Dark mode</FieldLabel>
</Field>
</FieldGroup>
</FieldSet>
```
---
## Field validation and disabled states
Both attributes are needed — `data-invalid`/`data-disabled` styles the field (label, description), while `aria-invalid`/`disabled` styles the control.
```tsx
// Invalid.
<Field data-invalid>
<FieldLabel htmlFor="email">Email</FieldLabel>
<Input id="email" aria-invalid />
<FieldDescription>Invalid email address.</FieldDescription>
</Field>
// Disabled.
<Field data-disabled>
<FieldLabel htmlFor="email">Email</FieldLabel>
<Input id="email" disabled />
</Field>
```
Works for all controls: `Input`, `Textarea`, `Select`, `Checkbox`, `RadioGroupItem`, `Switch`, `Slider`, `NativeSelect`, `InputOTP`.
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# Icons
**Always use the project's configured `iconLibrary` for imports.** Check the `iconLibrary` field from project context: `lucide``lucide-react`, `tabler``@tabler/icons-react`, etc. Never assume `lucide-react`.
---
## Icons in Button use data-icon attribute
Add `data-icon="inline-start"` (prefix) or `data-icon="inline-end"` (suffix) to the icon. No sizing classes on the icon.
**Incorrect:**
```tsx
<Button>
<SearchIcon className="mr-2 size-4" />
Search
</Button>
```
**Correct:**
```tsx
<Button>
<SearchIcon data-icon="inline-start"/>
Search
</Button>
<Button>
Next
<ArrowRightIcon data-icon="inline-end"/>
</Button>
```
---
## No sizing classes on icons inside components
Components handle icon sizing via CSS. Don't add `size-4`, `w-4 h-4`, or other sizing classes to icons inside `Button`, `DropdownMenuItem`, `Alert`, `Sidebar*`, or other shadcn components. Unless the user explicitly asks for custom icon sizes.
**Incorrect:**
```tsx
<Button>
<SearchIcon className="size-4" data-icon="inline-start" />
Search
</Button>
<DropdownMenuItem>
<SettingsIcon className="mr-2 size-4" />
Settings
</DropdownMenuItem>
```
**Correct:**
```tsx
<Button>
<SearchIcon data-icon="inline-start" />
Search
</Button>
<DropdownMenuItem>
<SettingsIcon />
Settings
</DropdownMenuItem>
```
---
## Pass icons as component objects, not string keys
Use `icon={CheckIcon}`, not a string key to a lookup map.
**Incorrect:**
```tsx
const iconMap = {
check: CheckIcon,
alert: AlertIcon,
}
function StatusBadge({ icon }: { icon: string }) {
const Icon = iconMap[icon]
return <Icon />
}
<StatusBadge icon="check" />
```
**Correct:**
```tsx
// Import from the project's configured iconLibrary (e.g. lucide-react, @tabler/icons-react).
import { CheckIcon } from "lucide-react"
function StatusBadge({ icon: Icon }: { icon: React.ComponentType }) {
return <Icon />
}
<StatusBadge icon={CheckIcon} />
```
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# Styling & Customization
See [customization.md](../customization.md) for theming, CSS variables, and adding custom colors.
## Contents
- Semantic colors
- Built-in variants first
- className for layout only
- No space-x-* / space-y-*
- Prefer size-* over w-* h-* when equal
- Prefer truncate shorthand
- No manual dark: color overrides
- Use cn() for conditional classes
- No manual z-index on overlay components
---
## Semantic colors
**Incorrect:**
```tsx
<div className="bg-blue-500 text-white">
<p className="text-gray-600">Secondary text</p>
</div>
```
**Correct:**
```tsx
<div className="bg-primary text-primary-foreground">
<p className="text-muted-foreground">Secondary text</p>
</div>
```
---
## No raw color values for status/state indicators
For positive, negative, or status indicators, use Badge variants, semantic tokens like `text-destructive`, or define custom CSS variables — don't reach for raw Tailwind colors.
**Incorrect:**
```tsx
<span className="text-emerald-600">+20.1%</span>
<span className="text-green-500">Active</span>
<span className="text-red-600">-3.2%</span>
```
**Correct:**
```tsx
<Badge variant="secondary">+20.1%</Badge>
<Badge>Active</Badge>
<span className="text-destructive">-3.2%</span>
```
If you need a success/positive color that doesn't exist as a semantic token, use a Badge variant or ask the user about adding a custom CSS variable to the theme (see [customization.md](../customization.md)).
---
## Built-in variants first
**Incorrect:**
```tsx
<Button className="border border-input bg-transparent hover:bg-accent">
Click me
</Button>
```
**Correct:**
```tsx
<Button variant="outline">Click me</Button>
```
---
## className for layout only
Use `className` for layout (e.g. `max-w-md`, `mx-auto`, `mt-4`), **not** for overriding component colors or typography. To change colors, use semantic tokens, built-in variants, or CSS variables.
**Incorrect:**
```tsx
<Card className="bg-blue-100 text-blue-900 font-bold">
<CardContent>Dashboard</CardContent>
</Card>
```
**Correct:**
```tsx
<Card className="max-w-md mx-auto">
<CardContent>Dashboard</CardContent>
</Card>
```
To customize a component's appearance, prefer these approaches in order:
1. **Built-in variants**`variant="outline"`, `variant="destructive"`, etc.
2. **Semantic color tokens**`bg-primary`, `text-muted-foreground`.
3. **CSS variables** — define custom colors in the global CSS file (see [customization.md](../customization.md)).
---
## No space-x-* / space-y-*
Use `gap-*` instead. `space-y-4``flex flex-col gap-4`. `space-x-2``flex gap-2`.
```tsx
<div className="flex flex-col gap-4">
<Input />
<Input />
<Button>Submit</Button>
</div>
```
---
## Prefer size-* over w-* h-* when equal
`size-10` not `w-10 h-10`. Applies to icons, avatars, skeletons, etc.
---
## Prefer truncate shorthand
`truncate` not `overflow-hidden text-ellipsis whitespace-nowrap`.
---
## No manual dark: color overrides
Use semantic tokens — they handle light/dark via CSS variables. `bg-background text-foreground` not `bg-white dark:bg-gray-950`.
---
## Use cn() for conditional classes
Use the `cn()` utility from the project for conditional or merged class names. Don't write manual ternaries in className strings.
**Incorrect:**
```tsx
<div className={`flex items-center ${isActive ? "bg-primary text-primary-foreground" : "bg-muted"}`}>
```
**Correct:**
```tsx
import { cn } from "@/lib/utils"
<div className={cn("flex items-center", isActive ? "bg-primary text-primary-foreground" : "bg-muted")}>
```
---
## No manual z-index on overlay components
`Dialog`, `Sheet`, `Drawer`, `AlertDialog`, `DropdownMenu`, `Popover`, `Tooltip`, `HoverCard` handle their own stacking. Never add `z-50` or `z-[999]`.