Skeleton

A `div` with the muted token as its fill and Tailwind's `animate-pulse` (an opacity keyframe), turned off under `motion-reduce`. It is always `aria-hidden`; the caller announces the loading state (for example `aria-busy` on the region it replaces). Size and shape come entirely from the caller's classes.

**Pebble (2026-11-03).** The placeholder now reads as a recessed well, matching Pebble's inputs and tracks: `bg-muted` with `inset-shadow-xs` (dropped in dark mode, where the well tone alone carries it) and a default `rounded-md`. No shimmer was added; the opacity pulse stays and still stops under reduced motion. The demo shows a profile card loading beside the loaded version of the same card, with every placeholder sized to the box it stands in for so the swap never shifts layout.

<!-- PEBBLE-LICENSE -->

registry/feedback/skeleton/skeleton.tsx

/* PEBBLE-LICENSE
Built by Pebble. Component: skeleton.

First-party license: MIT

The following first-party terms apply only to original Pebble material.

MIT License

Copyright (c) 2026 Praxys Solutions LLC (Pebble)

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
END PEBBLE-LICENSE */

import * as React from "react";

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

export type SkeletonProps = Omit<React.ComponentProps<"div">, "aria-hidden">;

// Pebble: a skeleton is a recessed well, the same muted surface and soft inner
// shade as a track or an empty input, so it reads as "content goes here" and
// not as a grey box. It breathes with a slow pulse that stops under reduced
// motion (opacity holds at rest, so the shape is still visible).
export function Skeleton({ className, ...props }: SkeletonProps) {
  return (
    <div
      {...props}
      data-slot="skeleton"
      // Always decorative; the loading state is announced by the caller.
      aria-hidden
      className={cn(
        "animate-pulse rounded-md bg-muted inset-shadow-xs motion-reduce:animate-none dark:inset-shadow-none",
        className,
      )}
    />
  );
}