/**
 * Environment Checker - validates Node.js, Git, Claude CLI, and optional tools
 */
import type { HealthChecker, CategoryResult, DoctorOptions } from '../types.js';
export declare class EnvironmentChecker implements HealthChecker {
    category: string;
    check(_projectRoot: string, _options: DoctorOptions): Promise<CategoryResult>;
    private checkTool;
    private parseNodeVersion;
}
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