/**
 * Cycle detection and flow result metadata — extracted from executor.ts.
 */
import { type SingleResult } from "../types/flow.js";
export declare function getFlowCycleViolations(requestedNames: Set<string>, ancestorFlowStack: string[]): string[];
/**
 * Shallow-merge helper: copies audit-loop metadata fields from `source`
 * onto `target` without mutating the target's identity reference.
 */
export declare function preserveMetadata(target: SingleResult, source?: SingleResult): void;
export declare function shouldFailover(result: SingleResult): boolean;
/**
 * Patterns indicating transient connection / network errors worth retrying
 * at the sub-agent level after model failover is exhausted.
 */
export declare const CONNECTION_ERROR_PATTERNS: RegExp[];
/**
 * Returns true when stderr + errorMessage match a transient connection pattern
 * and do not match any non-retryable denylist pattern.
 */
export declare function isRetryableConnectionError(stderr: string, errorMessage?: string): boolean;
export declare function createGhostResult(type: string, intent: string, aim: string, model?: string, maxContextTokens?: number): SingleResult;
export interface CycleHistoryEntry {
    cycle: number;
    buildOutputs: string[];
    verdict: string;
    feedback?: string;
    buildFeedbacks?: (string | null)[];
}
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