/**
 * manifest preflight command
 *
 * Pre-flight checks for Manifest applications.
 * Validates environment variables, configuration, and dependencies before runtime.
 *
 * Primary goal: "If preflight passes, the app will start without config errors."
 */
export interface PreflightOptions {
    /** Preview .env.example write when --generate-example is set. */
    dryRun?: boolean;
    /**
     * Output format: 'text' (human-readable) or 'json' (machine-readable)
     */
    format?: 'text' | 'json';
    /**
     * Generate .env.example file instead of checking
     */
    generateExample?: boolean;
    /**
     * Output path for .env.example (default: .env.example in project root)
     */
    output?: string;
    /**
     * Working directory (defaults to process.cwd())
     */
    cwd?: string;
}
/**
 * Preflight command handler
 */
export declare function preflightCommand(options?: PreflightOptions): Promise<void>;
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