/**
 * Core pipeline execution engine
 *
 * This module provides the infrastructure for executing research pipelines.
 * It handles step execution, error management, retries, timeouts, and state management
 * throughout the research process.
 *
 * @module core/pipeline
 */
import { ResearchState, ResearchStep, PipelineConfig, ResearchResult } from '../types/pipeline.js';
import { z } from 'zod';
/**
 * Creates the initial state object for a research pipeline
 *
 * @param query - The research query string
 * @param outputSchema - A Zod schema that defines the expected output structure
 * @returns A fresh ResearchState object initialized with the provided query and schema
 *
 * @example
 * ```typescript
 * import { z } from 'zod';
 * import { createInitialState } from '@plust/datasleuth';
 *
 * const outputSchema = z.object({
 *   summary: z.string(),
 *   findings: z.array(z.string())
 * });
 *
 * const initialState = createInitialState(
 *   "What are the latest advancements in renewable energy?",
 *   outputSchema
 * );
 * ```
 */
export declare function createInitialState(query: string, outputSchema: z.ZodType<ResearchResult>): ResearchState;
/**
 * Main pipeline execution function
 */
export declare function executePipeline(initialState: ResearchState, steps: ResearchStep[], config?: Partial<PipelineConfig>): Promise<ResearchState>;