Edit Tool

Render a file edit/write tool call as a diff card with header, +/- line stats, line-level diff body, and an optional Apply/Skip approval footer. State-driven (completed / pending / waiting). Self-contained port from 21st.dev Agent Elements.

Agent Elementsby

21st

import { EditTool } from "@/components/ui/edit-tool";

const oldContent = `export const metadata = { title: 'Old' };

export default function Page() {
  return <div>Old content</div>;
}
`;

const newContent = `export const metadata = { title: 'Updated' };

export default function Page() {
  return (
    <div>
      <h1>Release notes</h1>
      <p>New layout applied.</p>
    </div>
  );
}
`;

export default function Demo() {
  return (
    <div className="flex items-center justify-center w-full min-h-screen bg-background p-8 overflow-hidden">
      <div className="w-full max-w-md">
        <EditTool
          filePath="/app/page.tsx"
          oldContent={oldContent}
          newContent={newContent}
        />
      </div>
    </div>
  );
}