import type { EnvVar } from '../types.js';
export interface KeyDiff {
    added: string[];
    removed: string[];
    changed: string[];
}
/**
 * SECURITY: Only compares keys - never exposes secret values in output.
 */
export declare function computeDiff(sourceVars: EnvVar[], encryptedVars: EnvVar[]): KeyDiff;
export declare function isInSync(diff: KeyDiff): boolean;
//# sourceMappingURL=diff.d.ts.map