import type { AgentEngine, ToolRegistry } from '@cicctencent/agent-core';
import type { SSEResponse } from '../types.js';
/** SSE 辅助：将 SSE 事件写入响应流 */
export declare function writeSSE(res: SSEResponse, event: string, data: any): void;
/** SSE 响应初始化（设置 SSE headers 并 flush） */
export declare function initSSEResponse(res: SSEResponse): void;
/**
 * 运行 Agent 并通过 SSE 推送事件流
 *
 * 事件格式：reasoning, content, tool-call, tool-result, step-complete, done, error
 */
export declare function runAgentSSEStream(res: SSEResponse, engineInstance: AgentEngine, toolRegistry: ToolRegistry, runOptions: Parameters<AgentEngine['run']>[0], resolveToolDisplayName?: (toolName: string, registry: ToolRegistry) => string): Promise<void>;
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