import type { CriterionQuality } from '../../types/ears.js';
/**
 * Score a single acceptance criterion using EARS and testability heuristics.
 */
export declare function scoreCriterion(text: string): CriterionQuality;
export declare function gradeSpec(avgScore: number): 'A' | 'B' | 'C' | 'D' | 'F';
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