import type { UnknownObject } from '../../../types/common-types.js';
type DebugFallback = {
    routeName?: string;
    requestId?: string;
};
export declare function shouldCaptureVisionDebug(source?: UnknownObject, fallback?: DebugFallback): {
    enabled: boolean;
    routeName?: string;
    requestId?: string;
};
export declare function summarizeVisionMessages(source?: UnknownObject): string;
export declare function buildVisionSnapshotPayload(payload: UnknownObject, extras?: Record<string, unknown>): Record<string, unknown>;
export declare function logVisionDebugSummary(stage: string, payload: UnknownObject): void;
export declare function captureVisionDebugPayloadSnapshot(stage: 'provider-preprocess-debug' | 'provider-body-debug', payload: UnknownObject): Promise<void>;
export {};