/**
 * Custom error classes for MCP tool execution errors
 */
import { McpError } from "@modelcontextprotocol/sdk/types.js";
/**
 * Error thrown when an MCP protocol-level error occurs during tool execution
 * (e.g., connection failures, transport errors, server crashes)
 *
 * Extends McpError to preserve MCP error structure (code, message, data)
 * and adds stderr output from the MCP server process
 */
export declare class ToolCallMcpError extends McpError {
    /**
     * Array of stderr lines captured from the MCP server process
     * This is particularly useful for stdio-based MCP servers that write
     * detailed error information to stderr
     */
    readonly stderr: string[];
    constructor(mcpError: McpError, stderr: string[]);
}
/**
 * Error thrown when an MCP tool call completes successfully at the protocol level,
 * but the tool itself returns an error response (result.isError = true)
 *
 * This represents a logical failure in the tool execution, not a protocol failure.
 * The full result object is preserved for inspection.
 */
export declare class ToolCallError extends Error {
    /**
     * The complete result object from the MCP tool call
     * This includes the error response, content, and any other result properties
     */
    readonly result: {
        isError?: boolean;
        content: unknown[];
        error?: unknown;
        [key: string]: unknown;
    };
    constructor(result: {
        isError?: boolean;
        content: unknown[];
        error?: unknown;
        [key: string]: unknown;
    });
}
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