import type { FunctionTool } from '@openai/agents-core';
import type { Duration, RetryPolicy } from '@temporalio/common';
export declare class ToolSerializationError extends Error {
    constructor(message: string);
}
export interface JsonObjectSchema<_T = unknown> {
    type: 'object';
    properties: Record<string, unknown>;
    required?: string[];
    additionalProperties?: boolean;
}
type ActivityInput<TActivity extends (input: any) => Promise<any>> = Parameters<TActivity>[0];
/**
 * Definition for wrapping a Temporal Activity as an agent tool. `TActivity` is
 * the Activity function type (e.g. `typeof activities.getWeather`); its first
 * argument shape types `parameters`.
 */
export interface ActivityToolDefinition<TActivity extends (input: any) => Promise<any>> {
    /** Activity name — must match the registered Activity on the Worker. */
    name: string;
    /** Tool description shown to the model. */
    description: string;
    /** Explicit JSON schema for the tool parameters (not Zod). */
    parameters: JsonObjectSchema<ActivityInput<TActivity>>;
}
export interface ActivityAsToolOptions {
    startToCloseTimeout?: Duration;
    heartbeatTimeout?: Duration;
    taskQueue?: string;
    retryPolicy?: RetryPolicy;
    strict?: boolean;
}
/**
 * Wraps a Temporal Activity as an OpenAI Agents FunctionTool. When the agent
 * invokes the tool, it schedules the named Activity via `proxyActivities` and
 * returns the stringified result.
 */
export declare function activityAsTool<TActivity extends (input: any) => Promise<any>>(definition: ActivityToolDefinition<TActivity>, options?: ActivityAsToolOptions): FunctionTool;
export {};