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Add shadcn as a system skill
This commit is contained in:
Vaibhav Srivastav
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MIT License
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Copyright (c) 2023 shadcn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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---
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name: "shadcn"
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description: "Use when the user is working with shadcn/ui or a project that uses `components.json`, including adding, searching, updating, fixing, debugging, styling, composing, or switching presets for shadcn/ui components and registries."
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---
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# shadcn/ui
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A framework for building UI components and design systems. Components are added as source code to the user's project via the CLI.
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> **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.
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## Project Context
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For an existing shadcn/ui project, start by running `npx shadcn@latest info --json` from the project root, or the equivalent `pnpm dlx` or `bunx --bun` command for the detected package manager. Use that output as the source of truth for project config, aliases, installed components, Tailwind setup, and resolved paths.
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If `info --json` fails because the project has not been initialized yet, only move to `init` when the user explicitly wants to set up shadcn/ui, create a new app, or switch presets. Otherwise, explain that the project is not initialized and what is missing.
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## Principles
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1. **Use existing components first.** Use `npx shadcn@latest search` to check registries before writing custom UI. Check community registries too.
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2. **Compose, don't reinvent.** Settings page = Tabs + Card + form controls. Dashboard = Sidebar + Card + Chart + Table.
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3. **Use built-in variants before custom styles.** `variant="outline"`, `size="sm"`, etc.
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4. **Use semantic colors.** `bg-primary`, `text-muted-foreground` — never raw values like `bg-blue-500`.
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## Critical Rules
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These rules are **always enforced**. Each links to a file with Incorrect/Correct code pairs.
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### Styling & Tailwind -> [styling.md](references/rules/styling.md)
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- **`className` for layout, not styling.** Never override component colors or typography.
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- **No `space-x-*` or `space-y-*`.** Use `flex` with `gap-*`. For vertical stacks, `flex flex-col gap-*`.
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- **Use `size-*` when width and height are equal.** `size-10` not `w-10 h-10`.
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- **Use `truncate` shorthand.** Not `overflow-hidden text-ellipsis whitespace-nowrap`.
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- **No manual `dark:` color overrides.** Use semantic tokens (`bg-background`, `text-muted-foreground`).
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- **Use `cn()` for conditional classes.** Don't write manual template literal ternaries.
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- **No manual `z-index` on overlay components.** Dialog, Sheet, Popover, etc. handle their own stacking.
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### Forms & Inputs -> [forms.md](references/rules/forms.md)
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- **Forms use `FieldGroup` + `Field`.** Never use raw `div` with `space-y-*` or `grid gap-*` for form layout.
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- **`InputGroup` uses `InputGroupInput`/`InputGroupTextarea`.** Never raw `Input`/`Textarea` inside `InputGroup`.
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- **Buttons inside inputs use `InputGroup` + `InputGroupAddon`.**
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- **Option sets (2–7 choices) use `ToggleGroup`.** Don't loop `Button` with manual active state.
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- **`FieldSet` + `FieldLegend` for grouping related checkboxes/radios.** Don't use a `div` with a heading.
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- **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.
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### Component Structure -> [composition.md](references/rules/composition.md)
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- **Items always inside their Group.** `SelectItem` -> `SelectGroup`. `DropdownMenuItem` -> `DropdownMenuGroup`. `CommandItem` -> `CommandGroup`.
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- **Use `asChild` (radix) or `render` (base) for custom triggers.** Check `base` field from `npx shadcn@latest info`. See [base-vs-radix.md](references/rules/base-vs-radix.md).
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- **Dialog, Sheet, and Drawer always need a Title.** `DialogTitle`, `SheetTitle`, `DrawerTitle` required for accessibility. Use `className="sr-only"` if visually hidden.
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- **Use full Card composition.** `CardHeader`/`CardTitle`/`CardDescription`/`CardContent`/`CardFooter`. Don't dump everything in `CardContent`.
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- **Button has no `isPending`/`isLoading`.** Compose with `Spinner` + `data-icon` + `disabled`.
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- **`TabsTrigger` must be inside `TabsList`.** Never render triggers directly in `Tabs`.
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- **`Avatar` always needs `AvatarFallback`.** For when the image fails to load.
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### Use Components, Not Custom Markup -> [composition.md](references/rules/composition.md)
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- **Use existing components before custom markup.** Check if a component exists before writing a styled `div`.
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- **Callouts use `Alert`.** Don't build custom styled divs.
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- **Empty states use `Empty`.** Don't build custom empty state markup.
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- **Toast via `sonner`.** Use `toast()` from `sonner`.
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- **Use `Separator`** instead of `<hr>` or `<div className="border-t">`.
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- **Use `Skeleton`** for loading placeholders. No custom `animate-pulse` divs.
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- **Use `Badge`** instead of custom styled spans.
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### Icons -> [icons.md](references/rules/icons.md)
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- **Icons in `Button` use `data-icon`.** `data-icon="inline-start"` or `data-icon="inline-end"` on the icon.
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- **No sizing classes on icons inside components.** Components handle icon sizing via CSS. No `size-4` or `w-4 h-4`.
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- **Pass icons as objects, not string keys.** `icon={CheckIcon}`, not a string lookup.
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### CLI
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- **Never decode or fetch preset codes manually.** Pass them directly to `npx shadcn@latest init --preset <code>`.
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## Key Patterns
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These are the most common patterns that differentiate correct shadcn/ui code. For edge cases, see the linked rule files above.
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```tsx
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// Form layout: FieldGroup + Field, not div + Label.
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<FieldGroup>
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<Field>
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<FieldLabel htmlFor="email">Email</FieldLabel>
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<Input id="email" />
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</Field>
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</FieldGroup>
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// Validation: data-invalid on Field, aria-invalid on the control.
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<Field data-invalid>
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<FieldLabel>Email</FieldLabel>
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<Input aria-invalid />
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<FieldDescription>Invalid email.</FieldDescription>
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</Field>
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// Icons in buttons: data-icon, no sizing classes.
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<Button>
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<SearchIcon data-icon="inline-start" />
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Search
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</Button>
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// Spacing: gap-*, not space-y-*.
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<div className="flex flex-col gap-4"> // correct
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<div className="space-y-4"> // wrong
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// Equal dimensions: size-*, not w-* h-*.
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<Avatar className="size-10"> // correct
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<Avatar className="w-10 h-10"> // wrong
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// Status colors: Badge variants or semantic tokens, not raw colors.
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<Badge variant="secondary">+20.1%</Badge> // correct
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<span className="text-emerald-600">+20.1%</span> // wrong
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```
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## Component Selection
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| Need | Use |
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| -------------------------- | --------------------------------------------------------------------------------------------------- |
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| Button/action | `Button` with appropriate variant |
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| Form inputs | `Input`, `Select`, `Combobox`, `Switch`, `Checkbox`, `RadioGroup`, `Textarea`, `InputOTP`, `Slider` |
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| Toggle between 2–5 options | `ToggleGroup` + `ToggleGroupItem` |
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| Data display | `Table`, `Card`, `Badge`, `Avatar` |
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| Navigation | `Sidebar`, `NavigationMenu`, `Breadcrumb`, `Tabs`, `Pagination` |
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| Overlays | `Dialog` (modal), `Sheet` (side panel), `Drawer` (bottom sheet), `AlertDialog` (confirmation) |
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| Feedback | `sonner` (toast), `Alert`, `Progress`, `Skeleton`, `Spinner` |
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| Command palette | `Command` inside `Dialog` |
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| Charts | `Chart` (wraps Recharts) |
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| Layout | `Card`, `Separator`, `Resizable`, `ScrollArea`, `Accordion`, `Collapsible` |
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| Empty states | `Empty` |
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| Menus | `DropdownMenu`, `ContextMenu`, `Menubar` |
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| Tooltips/info | `Tooltip`, `HoverCard`, `Popover` |
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## Key Fields
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The `info --json` output contains these key fields:
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- **`aliases`** -> use the actual alias prefix for imports (e.g. `@/`, `~/`), never hardcode.
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- **`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.
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- **`tailwindVersion`** -> `"v4"` uses `@theme inline` blocks; `"v3"` uses `tailwind.config.js`.
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- **`tailwindCssFile`** -> the global CSS file where custom CSS variables are defined. Always edit this file, never create a new one.
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- **`style`** -> component visual treatment (e.g. `nova`, `vega`).
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- **`base`** -> primitive library (`radix` or `base`). Affects component APIs and available props.
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- **`iconLibrary`** -> determines icon imports. Use `lucide-react` for `lucide`, `@tabler/icons-react` for `tabler`, etc. Never assume `lucide-react`.
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- **`resolvedPaths`** -> exact file-system destinations for components, utils, hooks, etc.
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- **`framework`** -> routing and file conventions (e.g. Next.js App Router vs Vite SPA).
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- **`packageManager`** -> use this for any non-shadcn dependency installs (e.g. `pnpm add date-fns` vs `npm install date-fns`).
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See [references/cli.md](references/cli.md) for the full field reference for `info`.
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## Component Docs, Examples, and Usage
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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.
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```bash
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npx shadcn@latest docs button dialog select
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```
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**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.
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## Workflow
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1. **Get project context** - run `npx shadcn@latest info --json` from the project root and refresh it whenever `components.json`, presets, or installed components change.
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2. **Check installed components first** - before running `add`, inspect the `components` list from `info --json` or list the `resolvedPaths.ui` directory. Do not import components that have not been added, and do not re-add ones already installed.
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3. **Find components** - run `npx shadcn@latest search`.
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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 have not installed. To preview changes to installed components, use `npx shadcn@latest add --diff`.
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5. **Install or update** - run `npx shadcn@latest add`. When updating existing components, use `--dry-run` and `--diff` first (see [Updating Components](#updating-components) below).
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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 may not 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 not.
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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.
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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`, etc.), ask which registry to use. Never default to a registry on behalf of the user.
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9. **Switching presets** - ask the user first: **reinstall**, **merge**, or **skip**?
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- **Reinstall**: `npx shadcn@latest init --preset <code> --force --reinstall`. Overwrites all components.
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- **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.
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- **Skip**: `npx shadcn@latest init --preset <code> --force --no-reinstall`. Only updates config and CSS, leaves components as-is.
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- **Important**: Always run preset commands inside the user's project directory. The CLI automatically preserves the current base (`base` vs `radix`) from `components.json`. If you must use a scratch or temp directory (e.g. for `--dry-run` comparisons), pass `--base <current-base>` explicitly; preset codes do not encode the base.
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## Updating Components
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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.**
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1. Run `npx shadcn@latest add <component> --dry-run` to see all files that would be affected.
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2. For each file, run `npx shadcn@latest add <component> --diff <file>` to see what changed upstream vs local.
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3. Decide per file based on the diff:
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- No local changes -> safe to overwrite.
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- Has local changes -> read the local file, analyze the diff, and apply upstream updates while preserving local modifications.
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- User says "just update everything" -> use `--overwrite`, but confirm first.
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4. **Never use `--overwrite` without the user's explicit approval.**
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## Quick Reference
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```bash
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# Create a new project.
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npx shadcn@latest init --name my-app --preset base-nova
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npx shadcn@latest init --name my-app --preset a2r6bw --template vite
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# Create a monorepo project.
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npx shadcn@latest init --name my-app --preset base-nova --monorepo
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npx shadcn@latest init --name my-app --preset base-nova --template next --monorepo
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# Initialize existing project.
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npx shadcn@latest init --preset base-nova
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npx shadcn@latest init --defaults # shortcut: --template=next --preset=base-nova
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# Add components.
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npx shadcn@latest add button card dialog
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npx shadcn@latest add @magicui/shimmer-button
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npx shadcn@latest add --all
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# Preview changes before adding/updating.
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npx shadcn@latest add button --dry-run
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npx shadcn@latest add button --diff button.tsx
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npx shadcn@latest add @acme/form --view button.tsx
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# Search registries.
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npx shadcn@latest search @shadcn -q "sidebar"
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npx shadcn@latest search @tailark -q "stats"
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# Get component docs and example URLs.
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npx shadcn@latest docs button dialog select
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# View registry item details (for items not yet installed).
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npx shadcn@latest view @shadcn/button
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```
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**Named presets:** `base-nova`, `radix-nova`
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**Templates:** `next`, `vite`, `start`, `react-router`, `astro` (all support `--monorepo`) and `laravel` (not supported for monorepo)
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**Preset codes:** Base62 strings starting with `a` (e.g. `a2r6bw`), from [ui.shadcn.com](https://ui.shadcn.com).
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## Reference Map
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Open only what you need:
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- [references/rules/forms.md](references/rules/forms.md) - FieldGroup, Field, InputGroup, ToggleGroup, FieldSet, validation states
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- [references/rules/composition.md](references/rules/composition.md) - groups, overlays, Card, Tabs, Avatar, Alert, Empty, Toast, Separator, Skeleton, Badge, Button loading
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- [references/rules/icons.md](references/rules/icons.md) - `data-icon`, icon sizing, passing icons as objects
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- [references/rules/styling.md](references/rules/styling.md) - semantic colors, variants, `className`, spacing, size, truncate, dark mode, `cn()`, z-index
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- [references/rules/base-vs-radix.md](references/rules/base-vs-radix.md) - `asChild` vs `render`, Select, ToggleGroup, Slider, Accordion
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- [references/cli.md](references/cli.md) - commands, flags, presets, templates
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- [references/mcp.md](references/mcp.md) - MCP-based registry search, view, install, and audit flows when the shadcn MCP server is available
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- [references/customization.md](references/customization.md) - theming, CSS variables, and extending components
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interface:
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display_name: "shadcn/ui"
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short_description: "Build and maintain shadcn/ui projects"
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icon_small: "./assets/shadcn-small.png"
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icon_large: "./assets/shadcn.png"
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default_prompt: "Use $shadcn to inspect this shadcn/ui project, choose the right components, and implement the UI using the project's existing aliases and conventions."
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After Width: | Height: | Size: 3.8 KiB |
@@ -0,0 +1,257 @@
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# shadcn CLI Reference
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Configuration is read from `components.json`.
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||||
> **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.
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|
||||
> **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.
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## Contents
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||||
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- Commands: init, add (dry-run, smart merge), search, view, docs, info, build
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- Templates: next, vite, start, react-router, astro
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- Presets: named, code, URL formats and fields
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- Switching presets
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||||
---
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||||
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||||
## Commands
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||||
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||||
### `init` — Initialize or create a project
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||||
|
||||
```bash
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||||
npx shadcn@latest init [components...] [options]
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||||
```
|
||||
|
||||
Initializes shadcn/ui in an existing project or creates a new project (when `--name` is provided). Optionally installs components in the same step.
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||||
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||||
| Flag | Short | Description | Default |
|
||||
| ----------------------- | ----- | --------------------------------------------------------- | ------- |
|
||||
| `--template <template>` | `-t` | Template (next, start, vite, next-monorepo, react-router) | — |
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||||
| `--preset [name]` | `-p` | Preset configuration (named, code, or URL) | — |
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||||
| `--yes` | `-y` | Skip confirmation prompt | `true` |
|
||||
| `--defaults` | `-d` | Use defaults (`--template=next --preset=base-nova`) | `false` |
|
||||
| `--force` | `-f` | Force overwrite existing configuration | `false` |
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||||
| `--cwd <cwd>` | `-c` | Working directory | current |
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||||
| `--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`.
|
||||
|
||||
### `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`), 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
|
||||
|
||||
# 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`. Without `-q`, lists all items.
|
||||
|
||||
| Flag | Short | Description | Default |
|
||||
| ------------------- | ----- | ---------------------- | ------- |
|
||||
| `--query <query>` | `-q` | Search query | — |
|
||||
| `--limit <number>` | `-l` | Max items per registry | `100` |
|
||||
| `--offset <number>` | `-o` | Items to skip | `0` |
|
||||
| `--cwd <cwd>` | `-c` | Working directory | current |
|
||||
|
||||
### `view` — View item details
|
||||
|
||||
```bash
|
||||
npx shadcn@latest view <items...> [options]
|
||||
```
|
||||
|
||||
Displays item info including file contents. Example: `npx shadcn@latest view @shadcn/button`.
|
||||
|
||||
### `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`.
|
||||
|
||||
| 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 base-nova` or `--preset radix-nova`
|
||||
2. **Code:** `--preset a2r6bw` (base62 string, starts with lowercase `a`)
|
||||
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.
|
||||
|
||||
## Switching Presets
|
||||
|
||||
Ask the user first: **reinstall**, **merge**, or **skip** existing components?
|
||||
|
||||
- **Re-install** → `npx shadcn@latest init --preset <code> --force --reinstall`. Overwrites all 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. 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.
|
||||
@@ -0,0 +1,202 @@
|
||||
# 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 (0–1), chroma (0 = gray), and hue (0–360).
|
||||
|
||||
---
|
||||
|
||||
## 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 init --preset a2r6bw --force
|
||||
|
||||
# Switch to a named preset.
|
||||
npx shadcn@latest init --preset radix-nova --force
|
||||
npx shadcn@latest init --reinstall # update existing components to match
|
||||
|
||||
# Use a custom theme URL.
|
||||
npx shadcn@latest init --preset "https://ui.shadcn.com/init?base=radix&style=nova&theme=blue&..." --force
|
||||
```
|
||||
|
||||
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="max-w-md mx-auto">...</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.
|
||||
@@ -0,0 +1,93 @@
|
||||
# shadcn MCP Server
|
||||
|
||||
The CLI includes an MCP server that lets AI assistants search, browse, view, and install components 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 |
|
||||
|--------|------------|
|
||||
| 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.
|
||||
|
||||
**Input:** `registries` (string[]), `limit` (number, optional), `offset` (number, optional)
|
||||
|
||||
### `shadcn:search_items_in_registries`
|
||||
|
||||
Fuzzy search across registries.
|
||||
|
||||
**Input:** `registries` (string[]), `query` (string), `limit` (number, optional), `offset` (number, optional)
|
||||
|
||||
### `shadcn:view_items_in_registries`
|
||||
|
||||
View item details including full file contents.
|
||||
|
||||
**Input:** `items` (string[]) - e.g. `["@shadcn/button", "@shadcn/card"]`
|
||||
|
||||
### `shadcn:get_item_examples_from_registries`
|
||||
|
||||
Find usage examples and demos with source code.
|
||||
|
||||
**Input:** `registries` (string[]), `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
|
||||
|
||||
Registries are set in `components.json`. The `@shadcn` registry is always built-in.
|
||||
|
||||
```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`
|
||||
@@ -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>
|
||||
```
|
||||
@@ -0,0 +1,195 @@
|
||||
# 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">` |
|
||||
@@ -0,0 +1,192 @@
|
||||
# Forms & Inputs
|
||||
|
||||
## Contents
|
||||
|
||||
- Forms use FieldGroup + Field
|
||||
- InputGroup requires InputGroupInput/InputGroupTextarea
|
||||
- Buttons inside inputs use InputGroup + InputGroupAddon
|
||||
- Option sets (2–7 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 2–5 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 (2–7 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`.
|
||||
@@ -0,0 +1,101 @@
|
||||
# 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} />
|
||||
```
|
||||
@@ -0,0 +1,162 @@
|
||||
# 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]`.
|
||||
Reference in New Issue
Block a user