/**
 * Dreamer — background agent for knowledge validation.
 *
 * Inspired by Honcho's "Dreamer" concept, adapted for local deterministic use
 * (no LLM calls). Periodically validates old knowledge entries, marks stale
 * ones, and auto-archives entries that are likely outdated.
 */
import type { StoragePlugin } from './types.js';
import type { KnowledgeBase } from '../plugins/knowledge/knowledge-base.js';
import type { ErrorLogger } from './error-logger.js';
import type { GlobalKnowledgeStore } from './global-store.js';
export interface DreamerLog {
    type: 'stale' | 'archive' | 'contradiction' | 'promote' | 'merge-suggestion' | 'compress';
    entry_id: string;
    message: string;
    timestamp: number;
}
export declare class Dreamer {
    private knowledgeBase;
    private storage;
    private interval;
    private startupTimer;
    private readonly CYCLE_MS;
    private readonly STALE_THRESHOLD_DAYS;
    private readonly ARCHIVE_THRESHOLD_DAYS;
    private readonly PROMOTION_SESSION_THRESHOLD;
    private readonly logs;
    private globalStore?;
    private errorLogger?;
    constructor(knowledgeBase: KnowledgeBase, storage: StoragePlugin, opts?: {
        cycleMs?: number;
        staleThresholdDays?: number;
        archiveThresholdDays?: number;
        promotionSessionThreshold?: number;
        globalStore?: GlobalKnowledgeStore;
    });
    setErrorLogger(logger: ErrorLogger): void;
    start(): void;
    stop(): void;
    /** Expose logs for inspection / testing */
    getLogs(): readonly DreamerLog[];
    /** Run a single validation cycle (exposed for testing) */
    cycle(): Promise<void>;
    markStaleEntries(): Promise<number>;
    archiveOldEntries(): Promise<number>;
    detectContradictions(): Promise<number>;
    promotionScan(): Promise<Array<{
        id: string;
        title: string;
        sessions: number;
    }>>;
    duplicateScan(): Promise<number>;
    progressiveCompress(): Promise<number>;
    consolidateRelated(): Promise<number>;
    extractCausalChains(): Promise<number>;
    boostCorroboration(): Promise<number>;
    private extractWords;
}
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