SurfSense/surfsense_backend/app/services/streaming/events/subagent_lifecycle.py

86 lines
2.5 KiB
Python

"""Sub-agent lifecycle events the FE pairs into one timeline lane.
A sub-agent run is a high-level boundary (a whole agent invocation),
so we use the ``start`` / ``finish`` verb pair, matching how the AI SDK
spells message- and step-level lifecycles.
"""
from __future__ import annotations
from typing import Any
from ..emitter import Emitter
from .data import format_data
def format_subagent_start(
*,
subagent_run_id: str,
subagent_type: str,
parent_tool_call_id: str,
chat_turn_id: str | None = None,
description: str | None = None,
started_at: str | None = None,
emitter: Emitter | None = None,
) -> str:
payload: dict[str, Any] = {
"subagent_run_id": subagent_run_id,
"subagent_type": subagent_type,
"parent_tool_call_id": parent_tool_call_id,
}
if chat_turn_id is not None:
payload["chat_turn_id"] = chat_turn_id
if description is not None:
payload["description"] = description
if started_at is not None:
payload["started_at"] = started_at
return format_data("subagent-start", payload, emitter=emitter)
def format_subagent_finish(
*,
subagent_run_id: str,
subagent_type: str,
parent_tool_call_id: str,
status: str = "completed",
ended_at: str | None = None,
duration_ms: int | None = None,
emitter: Emitter | None = None,
) -> str:
payload: dict[str, Any] = {
"subagent_run_id": subagent_run_id,
"subagent_type": subagent_type,
"parent_tool_call_id": parent_tool_call_id,
"status": status,
}
if ended_at is not None:
payload["ended_at"] = ended_at
if duration_ms is not None:
payload["duration_ms"] = duration_ms
return format_data("subagent-finish", payload, emitter=emitter)
def format_subagent_error(
*,
subagent_run_id: str,
subagent_type: str,
parent_tool_call_id: str,
error_text: str,
error_type: str | None = None,
ended_at: str | None = None,
duration_ms: int | None = None,
emitter: Emitter | None = None,
) -> str:
payload: dict[str, Any] = {
"subagent_run_id": subagent_run_id,
"subagent_type": subagent_type,
"parent_tool_call_id": parent_tool_call_id,
"error_text": error_text,
}
if error_type is not None:
payload["error_type"] = error_type
if ended_at is not None:
payload["ended_at"] = ended_at
if duration_ms is not None:
payload["duration_ms"] = duration_ms
return format_data("subagent-error", payload, emitter=emitter)