/**
 * Input validation and sanitization utilities
 */
export interface ValidationResult {
    valid: boolean;
    sanitized?: string;
    error?: string;
}
/**
 * Validate and sanitize user input before sending to API
 */
export declare function validateInput(input: string): ValidationResult;
/**
 * Validate API key format
 */
export declare function validateApiKey(key: string): ValidationResult;
/**
 * Validate command arguments
 */
export declare function validateCommandArgs(command: string, args: string[]): ValidationResult;
/**
 * Validate file path (for file operations)
 */
export declare function validateFilePath(path: string): ValidationResult;
/**
 * Sanitize output before display (prevent terminal escape sequence injection)
 */
export declare function sanitizeOutput(output: string): string;