/**
 * [WHO]: Output: void; Inputs: (textareaRef, value, maxRows)
 * [FROM]: react
 * [TO]: CLI `add` copy target; canonical implementation in `src/components`
 * [HERE]: registry/chat/chat-input
 *
 * [PROTOCOL]:
 * 1. Keep this P3 header in sync when behavior changes
 * 2. Update module AGENTS.md (P2) and root AGENTS.md (P1) when needed
 * 3. Follow repository conventions for tokens and exports
 */
import { type RefObject } from 'react';
export declare function useAutoResizeTextarea(textareaRef: RefObject<HTMLTextAreaElement | null>, value: string, maxRows: number): void;