/**
 * Snapshot Update — Update expected values in test files based on current results.
 *
 * @example
 * ```bash
 * agentprobe update-snapshots tests.yaml
 * # Updates expected values in test files based on current results
 * # Shows diff before applying, asks for confirmation
 * ```
 */
import type { SuiteResult } from './types';
import { type BehaviorSnapshot } from './snapshots';
export interface SnapshotDiff {
    testName: string;
    field: string;
    oldValue: any;
    newValue: any;
}
export interface SnapshotUpdatePlan {
    suitePath: string;
    diffs: SnapshotDiff[];
    snapshotFiles: SnapshotFileUpdate[];
}
export interface SnapshotFileUpdate {
    filePath: string;
    oldSnapshot: BehaviorSnapshot | null;
    newSnapshot: BehaviorSnapshot;
}
/**
 * Generate a plan of snapshot updates based on suite results.
 */
export declare function planSnapshotUpdate(suitePath: string, results: SuiteResult, snapshotDir: string): SnapshotUpdatePlan;
/**
 * Format the update plan as a human-readable diff.
 */
export declare function formatUpdatePlan(plan: SnapshotUpdatePlan): string;
/**
 * Apply the snapshot update plan — write new snapshots to disk.
 */
export declare function applySnapshotUpdate(plan: SnapshotUpdatePlan): number;
/**
 * Check if snapshots are outdated for a given suite result.
 */
export declare function hasOutdatedSnapshots(results: SuiteResult, snapshotDir: string): boolean;
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