/**
 * Code-action meta-tool
 *
 * Instead of the LLM calling tools one-by-one through the tool loop,
 * `toolEval` lets the LLM write a short JS function body that orchestrates
 * multiple tools in a single turn. The runtime executes it via AsyncFunction.
 */
import { type ToolFunction } from './types.js';
/**
 * Options for toolEval
 */
export interface ToolEvalOptions {
    /** Execution timeout in milliseconds (default: 30000) */
    timeout?: number;
}
/**
 * Create a code-action meta-tool.
 *
 * Accepts raw functions or `tool()`-wrapped functions, with an optional
 * options object as the last argument. Only a `tool_eval` meta-tool is
 * sent to the LLM. When the LLM calls it with a JavaScript function body,
 * the code is executed with the registered functions available in scope.
 *
 * @example
 * ```ts
 * const exec = toolEval(add, multiply, readFile, sendEmail);
 *
 * const result = await prompt`
 *   Read example.txt, multiply 123 by 456, and email the result.
 *   ${exec}
 * `();
 * ```
 */
export declare function toolEval(...args: [...((...args: any[]) => any)[], ToolEvalOptions] | ((...args: any[]) => any)[]): ToolFunction;
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