/**
 * Research planning step for the research pipeline
 * Creates structured research plan with objectives and search queries
 */
import { createStep } from '../utils/steps.js';
import { z } from 'zod';
import { LanguageModel } from 'ai';
declare const researchPlanSchema: z.ZodObject<{
    objectives: z.ZodArray<z.ZodString, "many">;
    searchQueries: z.ZodArray<z.ZodString, "many">;
    relevantFactors: z.ZodArray<z.ZodString, "many">;
    dataGatheringStrategy: z.ZodString;
    expectedOutcomes: z.ZodArray<z.ZodString, "many">;
}, "strip", z.ZodTypeAny, {
    objectives: string[];
    searchQueries: string[];
    relevantFactors: string[];
    dataGatheringStrategy: string;
    expectedOutcomes: string[];
}, {
    objectives: string[];
    searchQueries: string[];
    relevantFactors: string[];
    dataGatheringStrategy: string;
    expectedOutcomes: string[];
}>;
export type ResearchPlan = z.infer<typeof researchPlanSchema>;
/**
 * Configuration options for the research planning step
 *
 * This interface defines all the configurable aspects of the planning step,
 * including the language model to use, prompt customization, and result handling.
 *
 * @interface PlanOptions
 * @property {string} [customPrompt] - Custom system prompt to override the default
 * @property {LanguageModel} [llm] - Language model to use for generating the plan (falls back to state.defaultLLM if not provided)
 * @property {number} [temperature=0.4] - Temperature setting for the language model (0.0-1.0)
 * @property {boolean} [includeInResults=true] - Whether to include the plan in the final research results
 * @property {string[]} [additionalInstructions] - Optional additional instructions to append to the system prompt
 * @property {number} [maxRetries=3] - Maximum number of retry attempts for LLM generation
 * @property {number} [initialBackoff=1000] - Initial backoff time in milliseconds for retries
 * @property {number} [backoffFactor=1.5] - Backoff factor for exponential backoff between retries
 */
export interface PlanOptions {
    /**
     * Custom system prompt to override the default
     * Use this to provide specialized instructions for plan generation
     */
    customPrompt?: string;
    /**
     * Language model to use for planning (from the Vercel AI SDK)
     * If not provided, will fall back to the defaultLLM from the research state
     *
     * @example
     * ```typescript
     * plan({ llm: openai('gpt-4o') })
     * ```
     */
    llm?: LanguageModel;
    /**
     * Temperature for the LLM (0.0 to 1.0)
     * Lower values produce more deterministic results
     * Higher values produce more creative/varied results
     * @default 0.4
     */
    temperature?: number;
    /**
     * Whether to include the research plan in the final results
     * Set to false if you only want to use the plan internally
     * @default true
     */
    includeInResults?: boolean;
    /**
     * Retry configuration for language model calls
     * Useful for handling transient errors in LLM services
     */
    retry?: {
        /** Maximum number of retries (default: 2) */
        maxRetries?: number;
        /** Base delay between retries in ms (default: 1000) */
        baseDelay?: number;
    };
}
/**
 * Creates a planning step for the research pipeline
 *
 * This step uses an LLM to generate a structured research plan based on the query.
 * The plan includes objectives, search queries, relevant factors, data gathering
 * strategy, and expected outcomes.
 *
 * @param options Configuration options for the planning step
 * @param options.customPrompt Custom prompt to override the default planning prompt
 * @param options.llm Language model to use (from Vercel AI SDK)
 * @param options.temperature Temperature for the LLM (0.0-1.0, defaults to 0.4)
 * @param options.includeInResults Whether to include the plan in final results (defaults to true)
 * @param options.retry Retry configuration for LLM calls
 *
 * @returns A planning step for the research pipeline
 *
 * @example
 * ```typescript
 * import { research, plan } from '@plust/datasleuth';
 * import { openai } from '@ai-sdk/openai';
 *
 * const results = await research({
 *   query: "Renewable energy trends",
 *   steps: [
 *     plan({
 *       llm: openai('gpt-4o'),
 *       temperature: 0.5,
 *       includeInResults: true
 *     }),
 *     // Additional steps...
 *   ],
 *   outputSchema
 * });
 * ```
 *
 * @throws {LLMError} When the language model fails to generate a plan
 * @throws {ValidationError} When the generated plan doesn't match the expected schema
 * @throws {ConfigurationError} When required configuration is missing
 */
export declare function plan(options?: PlanOptions): ReturnType<typeof createStep>;
export {};