/**
 * Meta Pattern Storage Layer
 *
 * Unified storage for all meta patterns. Single source of truth at
 * ~/.claude/meta/patterns.json with phase indices for fast queries.
 */
import type { MetaPattern, PatternStore, PhaseIndex, Phase, PatternType } from './schema.js';
/**
 * Load pattern store
 *
 * @returns Pattern store
 */
export declare function loadPatternStore(): Promise<PatternStore>;
/**
 * Save pattern store
 *
 * @param store - Pattern store
 */
export declare function savePatternStore(store: PatternStore): Promise<void>;
/**
 * Load all patterns
 *
 * @returns All patterns
 */
export declare function loadAllPatterns(): Promise<MetaPattern[]>;
/**
 * Load patterns by phase
 *
 * @param phase - Phase
 * @returns Patterns in phase
 */
export declare function loadPatternsByPhase(phase: Phase): Promise<MetaPattern[]>;
/**
 * Load patterns by type
 *
 * @param type - Pattern type
 * @returns Patterns of type
 */
export declare function loadPatternsByType(type: PatternType): Promise<MetaPattern[]>;
/**
 * Load pattern by ID
 *
 * @param id - Pattern ID
 * @returns Pattern or null
 */
export declare function loadPatternById(id: string): Promise<MetaPattern | null>;
/**
 * Save pattern (add or update)
 *
 * @param pattern - Pattern to save
 */
export declare function savePattern(pattern: MetaPattern): Promise<void>;
/**
 * Save multiple patterns
 *
 * @param patterns - Patterns to save
 */
export declare function savePatterns(patterns: MetaPattern[]): Promise<void>;
/**
 * Delete pattern by ID
 *
 * @param id - Pattern ID
 */
export declare function deletePattern(id: string): Promise<void>;
/**
 * Load phase index
 *
 * @param phase - Phase
 * @returns Phase index or null
 */
export declare function loadPhaseIndex(phase: Phase): Promise<PhaseIndex | null>;
/**
 * Update phase index
 *
 * @param phase - Phase
 */
export declare function updatePhaseIndex(phase: Phase): Promise<void>;
/**
 * Get storage statistics
 *
 * @returns Storage stats
 */
export declare function getStorageStats(): Promise<{
    totalPatterns: number;
    patternsByPhase: Record<Phase, number>;
    patternsByType: Record<PatternType, number>;
    avgConfidence: number;
    storageSize: string;
}>;
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