/**
 * Shared error handling utilities
 */
/**
 * Formats error message from unknown error type
 * This replaces the pattern: error instanceof Error ? error.message : String(error)
 * which was duplicated 17+ times across the codebase
 */
export declare function formatError(error: unknown): string;
/**
 * Wraps error with additional context
 */
export declare function wrapError(context: string, error: unknown): Error;
/**
 * Checks if error message contains specific text (case-insensitive)
 */
export declare function isErrorMessage(error: unknown, fragment: string): boolean;
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