/**
 * Validates that a string is not empty or whitespace-only.
 */
export declare const validateNonEmptyString: (value: unknown, fieldName: string) => string;
/**
 * Validates that a value is an array of strings.
 */
export declare const validateStringArray: (value: unknown, fieldName: string) => string[];
/**
 * Validates that a value is a function.
 */
export declare const validateFunction: (value: unknown, fieldName: string) => (...args: unknown[]) => unknown;
/**
 * Validates that a value is an object (but not null).
 */
export declare const validateObject: (value: unknown, fieldName: string) => Record<string, unknown>;
/**
 * Validates command name format and prevents malicious inputs.
 */
export declare const validateCommandName: (name: string) => string;
/**
 * Validates plugin name format and prevents malicious inputs.
 */
export declare const validatePluginName: (name: string) => string;