/**
 * Line count validator - enforces Context Economy principle
 *
 * Specs must fit in working memory:
 * - <300 lines: ✓ Ideal
 * - 300-400 lines: ⚠️ Warning (approaching limit)
 * - >400 lines: ✗ Error (exceeds limit)
 */
import type { ValidationRule, ValidationResult } from '../utils/validation-framework.js';
import type { SpecInfo } from '../types/index.js';
export interface LineCountOptions {
    maxLines?: number;
    warningThreshold?: number;
}
export declare class LineCountValidator implements ValidationRule {
    name: string;
    description: string;
    private maxLines;
    private warningThreshold;
    constructor(options?: LineCountOptions);
    validate(_spec: SpecInfo, content: string): ValidationResult;
}
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