/**
 * Extractor - Convert SemanticPhaseMeta to MetaPattern[]
 */
import type { SemanticPhaseMeta } from '../../../types/semantic-meta.js';
import type { MetaPattern } from '../core/schema.js';
/**
 * Extract meta patterns from semantic phase meta
 *
 * @param meta - Semantic phase meta
 * @param sessionId - Session ID
 * @returns Array of meta patterns
 */
export declare function extractPatterns(meta: SemanticPhaseMeta, sessionId: string): MetaPattern[];
/**
 * Merge new patterns with existing patterns
 *
 * If pattern already exists (same ID), update frequency and confidence.
 * Otherwise, add as new pattern.
 *
 * @param existingPatterns - Existing patterns
 * @param newPatterns - New patterns from extraction
 * @returns Merged patterns
 */
export declare function mergePatterns(existingPatterns: MetaPattern[], newPatterns: MetaPattern[]): MetaPattern[];
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