import { Tool, StringOutput, RunOptions } from "../core/Tool";
import { ExecutionContext } from "../core/ExecutionContext";
import { z } from "zod";
import { ConfigOptions } from "mathjs";
interface CalculatorInput {
    expression: string;
}
export declare class CalculatorTool extends Tool<CalculatorInput, StringOutput> {
    private readonly mathInstance;
    constructor(config?: ConfigOptions);
    schema(): z.ZodSchema<CalculatorInput>;
    protected execute(input: CalculatorInput, context: ExecutionContext, options: RunOptions): Promise<StringOutput>;
}
export {};