import type { Action, State } from '../app-reducer.js';
export interface UseInputHistoryPersistenceOptions {
    projectRoot: string;
    inputHistory: State['inputHistory'];
    dispatch: React.Dispatch<Action>;
}
/**
 * Per-project prompt history persistence.
 *
 * Loads prompt history from `projectInputHistory` on mount and saves it back
 * with a 200ms debounce whenever the in-memory list changes.
 */
export declare function useInputHistoryPersistence({ projectRoot, inputHistory, dispatch, }: UseInputHistoryPersistenceOptions): void;
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