import type { DocumentDiffSummary } from '../versioning/utils/branchDiff.js';
export interface UseMergePreviewReturn {
    documents: DocumentDiffSummary[];
    loading: boolean;
    error: Error | null;
    sourceBranchName: string;
    targetBranchName: string;
    isMainBranch: boolean;
}
/**
 * Automatically loads a merge preview comparing the current branch against main.
 * Must be used inside a P1PuckProvider.
 */
export declare function useMergePreview(): UseMergePreviewReturn;