export declare const __errorUtilsLogger: import("./logger.js").Logger;
/**
 * True when an error represents a WordPress REST permission denial (401/403),
 * e.g. requesting context=edit with credentials that lack edit capability.
 */
export declare function isPermissionError(error: unknown): boolean;
export declare function getErrorMessage(error: unknown): string;
export declare function isError(error: unknown): error is Error;
export declare function logAndReturn<T>(error: unknown, defaultValue: T): T;
/**
 * Enhanced error handler for consistent tool error handling
 */
export declare function handleToolError(error: unknown, operation: string, context?: Record<string, unknown>): never;
/**
 * Rethrows a caught client error with an operation-specific message prefix (e.g. "Failed to
 * list media"), preserving statusCode/code/data/subclass-identity for WordPressAPIError (and
 * its subclasses AuthenticationError/RateLimitError/ValidationError) instead of flattening it
 * into a plain Error — ToolRegistry's auth-error detection and other callers depend on that
 * metadata surviving to the MCP tool boundary. Falls back to a plain Error only for inputs
 * that carry no such metadata to begin with.
 */
export declare function preserveToolError(prefix: string, error: unknown): never;
/**
 * Validates required parameters
 */
export declare function validateRequired(params: Record<string, unknown> | unknown, required: string[]): void;
/**
 * Validates site parameter for multi-site configurations
 */
export declare function validateSite(site: string | undefined, availableSites: string[]): string;
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