export interface BackgroundAgentStartedPayload {
    transition: 'started';
    jobId: string;
    subagentId: string;
    label: string;
    model: string;
}
export interface BackgroundAgentCompletedPayload {
    transition: 'completed';
    jobId: string;
    subagentId: string;
    durationMs: number;
    outputBytes: number;
}
export interface BackgroundAgentFailedPayload {
    transition: 'failed';
    jobId: string;
    subagentId: string;
    durationMs: number;
    errorClass: string;
    errorMessage: string;
}
export interface BackgroundAgentCancelledPayload {
    transition: 'cancelled';
    jobId: string;
    subagentId: string;
    source: 'explicit' | 'cascade';
    cancelledBy?: 'model';
    reason?: string;
}
export interface BackgroundAgentJoinedPayload {
    transition: 'joined';
    jobId: string;
    subagentId: string;
    jobStatus: 'completed' | 'failed' | 'cancelled';
}
export interface BackgroundAgentDeliveredPayload {
    transition: 'delivered';
    jobId: string;
    subagentId: string;
    jobStatus: 'completed' | 'failed' | 'cancelled';
}
export type BackgroundAgentPayload = BackgroundAgentStartedPayload | BackgroundAgentCompletedPayload | BackgroundAgentFailedPayload | BackgroundAgentCancelledPayload | BackgroundAgentJoinedPayload | BackgroundAgentDeliveredPayload;