import type { Tool } from './tool';
import type { Tracer } from '../tracing';
/**
 * Handoff input type
 *
 * Note: context is a JSON string for OpenAI strict-mode compatibility.
 * The execute function will parse it back to an object.
 */
interface HandoffInput {
    agentId: string;
    message?: string;
    context?: string;
}
/**
 * Handoff result indicating a message should be transferred to another agent
 */
export interface HandoffResult {
    type: 'handoff';
    agentId: string;
    message: string;
    context?: Record<string, any>;
}
/**
 * Create a handoff tool that allows agents to transfer conversations to other agents
 * @param agentManager - Function to get an agent by ID
 * @param availableAgents - Function to get list of available agent IDs
 * @param tracer - Optional tracer for tracing handoff operations
 */
export declare function createHandoffTool(getAgent: (id: string) => any, getAvailableAgents: () => string[], tracer?: Tracer): Tool<HandoffInput, HandoffResult, never>;
export {};
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