import type { AgentTool } from '@earendil-works/pi-agent-core';
import type { MessageBus } from '../../infra/bus/index.js';
interface MessageContext {
    channel: string;
    chatId: string;
}
/**
 * Create the send_message tool.
 *
 * NOTE: TTS (Text-to-Speech) is NOT handled by this tool.
 * TTS is applied at the dispatch layer via maybeApplyTtsToPayload(), not at the tool layer.
 *
 * This prevents duplicate messages (text + voice) being sent.
 */
export declare function createMessageTool(bus: MessageBus, getContext: () => MessageContext | null): AgentTool;
export {};