/**
 * Extractor — Extracts structured knowledge entries from raw text.
 *
 * Paragraph-based splitting + classifier assignment.
 * Future: LLM-backed extraction with semantic chunking.
 *
 * Follows ADR-001 (pipeline filter) and ADR-005 (definition/execution separation):
 * Extractor defines extraction logic; actual LLM calls delegated to host in future.
 */
import type { KnowledgeEntry, KnowledgeSource } from '../types/index.js';
import { Classifier } from './classifier.js';
export interface ExtractorOptions {
    /** Minimum content length to consider a paragraph extractable */
    minContentLength?: number;
    /** Custom classifier instance */
    classifier?: Classifier;
    /** Minimum confidence threshold (retained for scoring; all entries are 'active') */
    minConfidence?: number;
}
export declare class Extractor {
    private classifier;
    private minContentLength;
    private minConfidence;
    constructor(options?: ExtractorOptions);
    /**
     * Extract knowledge entries from raw text.
     * Splits by paragraphs, classifies each, returns structured entries.
     */
    extract(text: string, source: KnowledgeSource): Promise<KnowledgeEntry[]>;
    private splitIntoParagraphs;
    private generateTitle;
    private generateSummary;
}
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