/**
 * Configuration Checker - validates config.json, CLAUDE.md freshness, etc.
 */
import type { HealthChecker, CategoryResult, DoctorOptions } from '../types.js';
export declare class ConfigurationChecker implements HealthChecker {
    category: string;
    check(projectRoot: string, _options: DoctorOptions): Promise<CategoryResult>;
    private checkOpus47Keys;
    private checkConfigJson;
    private checkClaudeMd;
    private checkAgentsMd;
    private checkEnvFile;
    private compareVersions;
}
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