/**
 * ComplexityScore Value Object
 *
 * Represents the complexity score of a task (1-10 scale)
 *
 * @see REQ-SDD-001 - Task Complexity Evaluation
 * @see DES-SDD-001 - ComplexityAnalyzer
 */
import type { ComplexityFactor } from './ComplexityFactor.js';
/**
 * Immutable complexity score value object
 */
export interface ComplexityScore {
    /** Complexity score value (1-10) */
    readonly value: number;
    /** Breakdown of complexity factors */
    readonly factors: readonly ComplexityFactor[];
    /** Threshold for decomposition recommendation */
    readonly threshold: number;
}
/**
 * Create a ComplexityScore value object
 *
 * @param value - Score value (1-10)
 * @param factors - Complexity factors breakdown
 * @param threshold - Decomposition threshold (default: 7)
 * @returns ComplexityScore or error
 */
export declare function createComplexityScore(value: number, factors: ComplexityFactor[], threshold?: number): ComplexityScore;
/**
 * Check if task should be decomposed based on complexity score
 *
 * @param score - Complexity score to evaluate
 * @returns true if score >= threshold
 */
export declare function shouldDecompose(score: ComplexityScore): boolean;
/**
 * Get complexity level label
 *
 * @param score - Complexity score
 * @returns Human-readable complexity level
 */
export declare function getComplexityLevel(score: ComplexityScore): 'low' | 'medium' | 'high' | 'critical';
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