export interface McpToolResponse {
    [key: string]: unknown;
    content: Array<{
        type: "text";
        text: string;
    }>;
    isError?: boolean;
}
/**
 * Create a successful JSON response.
 */
export declare function jsonResponse(data: unknown): McpToolResponse;
/**
 * Create an error response with the isError flag set.
 * This properly signals to MCP clients that the operation failed.
 */
export declare function errorResponse(err: unknown): McpToolResponse;
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