export interface DiffSummary {
    changed: number;
    insertions: number;
    deletions: number;
    files: Array<{
        file: string;
        changes: number;
        insertions: number;
        deletions: number;
        binary: boolean;
    }>;
}
/**
 * Get a file-level diff summary between two commits.
 */
export declare function getDiffSummary(repoPath: string, fromSha: string, toSha: string): Promise<DiffSummary>;
/**
 * Get the raw diff text between two commits (for the agent to analyze).
 */
export declare function getDiffText(repoPath: string, fromSha: string, toSha: string): Promise<string>;
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