/**
 * Flow control utilities for the research pipeline
 * Implements conditional iteration and evaluation steps
 */
import { createStep } from '../utils/steps.js';
import { ResearchState, ResearchStep } from '../types/pipeline.js';
/**
 * Options for the evaluate step
 */
export interface EvaluateOptions {
    /** Criteria function that determines if evaluation passes */
    criteriaFn: (state: ResearchState) => boolean | Promise<boolean>;
    /** Name for this evaluation criteria (used in logs) */
    criteriaName?: string;
    /** Confidence threshold (0.0 to 1.0) */
    confidenceThreshold?: number;
    /** Whether to store evaluation result in state metadata */
    storeResult?: boolean;
    /** Retry configuration */
    retry?: {
        /** Maximum number of retries */
        maxRetries?: number;
        /** Base delay between retries in ms */
        baseDelay?: number;
    };
}
/**
 * Creates an evaluation step for the research pipeline
 *
 * @param options Configuration options for evaluation
 * @returns An evaluation step for the research pipeline
 */
export declare function evaluate(options: EvaluateOptions): ReturnType<typeof createStep>;
/**
 * Options for the repeatUntil step
 */
export interface RepeatUntilOptions {
    /** Maximum number of iterations */
    maxIterations?: number;
    /** Whether to throw an error if max iterations is reached */
    throwOnMaxIterations?: boolean;
    /** Whether to continue if a step fails during iteration */
    continueOnError?: boolean;
    /** Retry configuration */
    retry?: {
        /** Maximum number of retries for the whole RepeatUntil step */
        maxRetries?: number;
        /** Base delay between retries in ms */
        baseDelay?: number;
    };
}
/**
 * Creates a composite step that repeats the given steps until a condition is met
 *
 * @param conditionStep Step that evaluates whether to continue repeating
 * @param stepsToRepeat Array of steps to repeat until condition is met
 * @param options Configuration options
 * @returns A composite step that handles the iteration
 */
export declare function repeatUntil(conditionStep: ResearchStep, stepsToRepeat: ResearchStep[], options?: RepeatUntilOptions): ReturnType<typeof createStep>;