/** 关闭诊断仅包含 SDK 生成的标识和固定阶段，不携带输入、路径或原始异常。 */
export interface CloseDiagnosticEvent {
    readonly correlationId: string;
    readonly component: 'query' | 'worker';
    readonly stage: 'close' | 'flush' | 'memory_flush' | 'skill_flush' | 'mcp_close' | 'transport_close' | 'read_loop' | 'transcript_flush' | 'initialize' | 'worker_exit' | 'worker_exit_observed' | 'terminate' | 'artifacts';
    readonly outcome: 'started' | 'completed' | 'failed';
    readonly elapsedMs: number;
    readonly exitCode?: number;
    readonly errorCode?: 'SDK_CLOSE_STAGE_FAILED';
}