Breadcrumb

import {
  Breadcrumb,
  BreadcrumbEllipsis,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbList,
  BreadcrumbPage,
  BreadcrumbSeparator,
} from "@/components/ui/breadcrumb"

export default function BreadcrumbDemo() {
  return (
    <Breadcrumb>
      <BreadcrumbList>
        <BreadcrumbItem>
          <BreadcrumbLink href="/">Home</BreadcrumbLink>
        </BreadcrumbItem>
        <BreadcrumbSeparator />
        <BreadcrumbItem>
          <BreadcrumbEllipsis />
        </BreadcrumbItem>
        <BreadcrumbSeparator />
        <BreadcrumbItem>
          <BreadcrumbLink href="/docs/components">Components</BreadcrumbLink>
        </BreadcrumbItem>
        <BreadcrumbSeparator />
        <BreadcrumbItem>
          <BreadcrumbPage>Breadcrumb</BreadcrumbPage>
        </BreadcrumbItem>
      </BreadcrumbList>
    </Breadcrumb>
  )
}

Installation

npx logic2b@latest add breadcrumb

Working with an AI assistant? Copy this prompt into Claude Code, Cursor or Copilot — it carries the install steps, a no-CLI fallback and a verification checklist.

Add the "breadcrumb" item from the logic2b ui registry (https://ui.logic2b.com) to this project. Follow every step and verify at the end.

## Steps

1. If the project has no `components.json` yet, set up logic2b ui first:

   ```bash
   npx logic2b@latest init
   ```

2. Install the item (the CLI resolves registry dependencies automatically):

   ```bash
   npx logic2b@latest add breadcrumb
   ```

3. Install any npm dependencies the command prints.

## If the CLI is not available

Do it manually from the registry payload:

1. Fetch https://ui.logic2b.com/r/breadcrumb.json.
2. Write every entry in `files[]` to its mapped project path (see below).
3. Repeat (recursively) for each name in `registryDependencies`.
4. Install every package listed in `dependencies` across those payloads.

## Registry reference

- Index of every item: https://ui.logic2b.com/r/index.json
- Item payload (full source): https://ui.logic2b.com/r/<name>.json
- Usage examples per item: https://ui.logic2b.com/r/demos/index.json → https://ui.logic2b.com/r/demos/<demo>.json
- Docs index for agents: https://ui.logic2b.com/llms.txt (full docs: https://ui.logic2b.com/llms-full.txt)
- Every docs page is Markdown when you append `.md` to its URL.

Registry file paths map to project paths like this:
- `ui/*` → `@/components/ui/*`
- `blocks/<name>/*` → `@/components/*`
- `charts/*` → `@/components/charts/*`
- `hooks/*` → `@/hooks/*`
- `lib/utils.ts` → `@/lib/utils.ts`
- `theme.css` → next to the project's Tailwind entry stylesheet

## Conventions (do not break these)

- Tailwind CSS v4 (CSS-first config; no tailwind.config.js needed) and React 19.
- All colors go through semantic tokens (`bg-primary`, `text-muted-foreground`,
  `border-border`, …). Never hardcode hex/oklch values in components.
- Dark mode is class-based: toggle `.dark` on `<html>`.
- Icons come from lucide-react.

## Verify before finishing

1. The dev server starts and the app renders without console errors.
2. TypeScript compiles (`tsc --noEmit` or the framework's check).
3. Components use the theme: a `<Button>` shows the primary token color,
   and toggling `.dark` on `<html>` switches the palette.

Install the dependencies:

npm install radix-ui lucide-react

Copy into ui/breadcrumb.tsx:

import * as React from "react"
import { Slot } from "radix-ui"
import { ChevronRight, MoreHorizontal } from "lucide-react"

import { cn } from "@/lib/utils"

function Breadcrumb({ ...props }: React.ComponentProps<"nav">) {
  return <nav aria-label="breadcrumb" data-slot="breadcrumb" {...props} />
}

function BreadcrumbList({ className, ...props }: React.ComponentProps<"ol">) {
  return (
    <ol
      data-slot="breadcrumb-list"
      className={cn(
        "text-muted-foreground flex flex-wrap items-center gap-1.5 text-sm break-words sm:gap-2.5",
        className
      )}
      {...props}
    />
  )
}

function BreadcrumbItem({ className, ...props }: React.ComponentProps<"li">) {
  return (
    <li
      data-slot="breadcrumb-item"
      className={cn("inline-flex items-center gap-1.5", className)}
      {...props}
    />
  )
}

function BreadcrumbLink({
  asChild,
  className,
  ...props
}: React.ComponentProps<"a"> & {
  asChild?: boolean
}) {
  const Comp = asChild ? Slot.Root : "a"

  return (
    <Comp
      data-slot="breadcrumb-link"
      className={cn("hover:text-foreground transition-colors", className)}
      {...props}
    />
  )
}

function BreadcrumbPage({ className, ...props }: React.ComponentProps<"span">) {
  return (
    <span
      data-slot="breadcrumb-page"
      role="link"
      aria-disabled="true"
      aria-current="page"
      className={cn("text-foreground font-normal", className)}
      {...props}
    />
  )
}

function BreadcrumbSeparator({
  children,
  className,
  ...props
}: React.ComponentProps<"li">) {
  return (
    <li
      data-slot="breadcrumb-separator"
      role="presentation"
      aria-hidden="true"
      className={cn("[&>svg]:size-3.5", className)}
      {...props}
    >
      {children ?? <ChevronRight />}
    </li>
  )
}

function BreadcrumbEllipsis({
  className,
  ...props
}: React.ComponentProps<"span">) {
  return (
    <span
      data-slot="breadcrumb-ellipsis"
      role="presentation"
      aria-hidden="true"
      className={cn("flex size-9 items-center justify-center", className)}
      {...props}
    >
      <MoreHorizontal className="size-4" />
      <span className="sr-only">More</span>
    </span>
  )
}

export {
  Breadcrumb,
  BreadcrumbList,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbPage,
  BreadcrumbSeparator,
  BreadcrumbEllipsis,
}

Usage

import {
  Breadcrumb,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbList,
  BreadcrumbPage,
  BreadcrumbSeparator,
} from "@/components/ui/breadcrumb"

<Breadcrumb>
  <BreadcrumbList>
    <BreadcrumbItem>
      <BreadcrumbLink href="/">Home</BreadcrumbLink>
    </BreadcrumbItem>
    <BreadcrumbSeparator />
    <BreadcrumbItem>
      <BreadcrumbPage>Breadcrumb</BreadcrumbPage>
    </BreadcrumbItem>
  </BreadcrumbList>
</Breadcrumb>

API

Prop	Type	Default
`asChild` (BreadcrumbLink)	`boolean` — compose with a router `Link`	`false`
`href` (BreadcrumbLink)	`string`	—
`children` (BreadcrumbSeparator)	`ReactNode` — custom separator, defaults to a chevron	`<ChevronRight />`

All parts are semantic wrappers (nav, ol, li, a, span) and forward their native props. BreadcrumbPage marks the current page with aria-current="page", and BreadcrumbEllipsis is decorative with an sr-only “More” label.

Examples

Custom separator

Pass children to BreadcrumbSeparator to swap the default chevron.

import { Slash } from "lucide-react"

import {
  Breadcrumb,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbList,
  BreadcrumbPage,
  BreadcrumbSeparator,
} from "@/components/ui/breadcrumb"

export default function BreadcrumbSeparatorDemo() {
  return (
    <Breadcrumb>
      <BreadcrumbList>
        <BreadcrumbItem>
          <BreadcrumbLink href="/">Home</BreadcrumbLink>
        </BreadcrumbItem>
        <BreadcrumbSeparator>
          <Slash />
        </BreadcrumbSeparator>
        <BreadcrumbItem>
          <BreadcrumbLink href="/docs/components">Components</BreadcrumbLink>
        </BreadcrumbItem>
        <BreadcrumbSeparator>
          <Slash />
        </BreadcrumbSeparator>
        <BreadcrumbItem>
          <BreadcrumbPage>Breadcrumb</BreadcrumbPage>
        </BreadcrumbItem>
      </BreadcrumbList>
    </Breadcrumb>
  )
}

Collapse a middle segment into a dropdown menu for long paths.

import { ChevronDown } from "lucide-react"

import {
  Breadcrumb,
  BreadcrumbItem,
  BreadcrumbLink,
  BreadcrumbList,
  BreadcrumbPage,
  BreadcrumbSeparator,
} from "@/components/ui/breadcrumb"
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"

export default function BreadcrumbDropdownDemo() {
  return (
    <Breadcrumb>
      <BreadcrumbList>
        <BreadcrumbItem>
          <BreadcrumbLink href="/">Home</BreadcrumbLink>
        </BreadcrumbItem>
        <BreadcrumbSeparator />
        <BreadcrumbItem>
          <DropdownMenu>
            <DropdownMenuTrigger className="flex items-center gap-1">
              Components
              <ChevronDown className="size-4" />
            </DropdownMenuTrigger>
            <DropdownMenuContent align="start">
              <DropdownMenuItem>Overview</DropdownMenuItem>
              <DropdownMenuItem>Primitives</DropdownMenuItem>
              <DropdownMenuItem>Layout</DropdownMenuItem>
            </DropdownMenuContent>
          </DropdownMenu>
        </BreadcrumbItem>
        <BreadcrumbSeparator />
        <BreadcrumbItem>
          <BreadcrumbPage>Breadcrumb</BreadcrumbPage>
        </BreadcrumbItem>
      </BreadcrumbList>
    </Breadcrumb>
  )
}

Installation

Usage

API

Examples

Custom separator

With dropdown