/**
 * health command - Verify SDK installation and environment health
 *
 * This command performs diagnostic checks to verify:
 * - SDK CLI is properly installed and version is accessible
 * - .a5c directory exists and is writable
 * - Node.js version is compatible (>=18)
 * - Package.json has babysitter-sdk dependency if in project context
 * - Environment variables are set correctly
 */
/**
 * Status of an individual health check
 */
export type CheckStatus = "pass" | "fail" | "warn";
/**
 * Result of a single health check
 */
export interface HealthCheck {
    /** Name of the check */
    name: string;
    /** Human-readable description of what was checked */
    description: string;
    /** Status of the check */
    status: CheckStatus;
    /** Detailed message about the result */
    message: string;
    /** Suggested next steps if the check failed or warned */
    nextSteps?: string[];
    /** Additional diagnostic details */
    details?: Record<string, unknown>;
}
/**
 * Options for running health checks
 */
export interface HealthCheckOptions {
    /** Output in JSON format for machine consumption */
    json?: boolean;
    /** Include verbose diagnostic information */
    verbose?: boolean;
    /** Working directory to check (defaults to cwd) */
    cwd?: string;
}
/**
 * Overall health check result
 */
export interface HealthCheckResult {
    /** Overall health status */
    status: "healthy" | "degraded" | "unhealthy";
    /** Timestamp of the health check */
    timestamp: string;
    /** Individual check results */
    checks: HealthCheck[];
    /** Summary counts */
    summary: {
        total: number;
        passed: number;
        failed: number;
        warnings: number;
    };
    /** Aggregated next steps from all failing checks */
    nextSteps: string[];
}
/**
 * Runs all health checks and returns aggregated results
 */
export declare function runHealthCheck(options: HealthCheckOptions): Promise<HealthCheckResult>;
/**
 * CLI entry point for the health command
 *
 * @param options - Parsed CLI options
 * @returns Exit code (0 for healthy, 1 for unhealthy)
 */
export declare function handleHealthCommand(options: HealthCheckOptions): Promise<number>;
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