/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { Config } from '@3-/qwen-code-core';
export declare function getErrorMessage(error: unknown): string;
/**
 * Handles errors consistently for both JSON and text output formats.
 * In JSON mode, outputs formatted JSON error and exits.
 * In text mode, outputs error message and re-throws.
 */
export declare function handleError(error: unknown, config: Config, customErrorCode?: string | number): never;
/**
 * Handles tool execution errors specifically.
 * In JSON/STREAM_JSON mode, outputs error message to stderr only and does not exit.
 * The error will be properly formatted in the tool_result block by the adapter,
 * allowing the session to continue so the LLM can decide what to do next.
 * In text mode, outputs error message to stderr only.
 *
 * @param toolName - Name of the tool that failed
 * @param toolError - The error that occurred during tool execution
 * @param config - Configuration object
 * @param errorCode - Optional error code
 * @param resultDisplay - Optional display message for the error
 */
export declare function handleToolError(toolName: string, toolError: Error, config: Config, _errorCode?: string | number, resultDisplay?: string): void;
/**
 * Handles cancellation/abort signals consistently.
 */
export declare function handleCancellationError(config: Config): never;
/**
 * Handles max session turns exceeded consistently.
 */
export declare function handleMaxTurnsExceededError(config: Config): never;