mirror of
https://github.com/bytedance/deer-flow.git
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9d0a42c1fb
Major refactoring of deerflow/runtime/: - runs/callbacks/ - new callback system (builder, events, title, tokens) - runs/internal/ - execution internals (executor, supervisor, stream_logic, registry) - runs/internal/execution/ - execution artifacts and events handling - runs/facade.py - high-level run facade - runs/observer.py - run observation protocol - runs/types.py - type definitions - runs/store/ - simplified store interfaces (create, delete, query, event) Refactor stream_bridge/: - Replace old providers with contract.py and exceptions.py - Remove async_provider.py, base.py, memory.py Add documentation: - README.md and README_zh.md for runtime module Remove deprecated: - manager.py moved to internal/ - worker.py, schemas.py - user_context.py Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
"""Title capture callback for runs."""
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from __future__ import annotations
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from typing import Any
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from uuid import UUID
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from langchain_core.callbacks import BaseCallbackHandler
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class RunTitleCallback(BaseCallbackHandler):
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"""Capture title generated by title middleware LLM calls or custom events."""
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def __init__(self) -> None:
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super().__init__()
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self._title: str | None = None
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def on_llm_end(self, response: Any, *, run_id: UUID, **kwargs: Any) -> None:
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if self._identify_caller(kwargs) != "middleware:title":
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return
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try:
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message = response.generations[0][0].message
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except (IndexError, AttributeError):
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return
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content = getattr(message, "content", "")
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if isinstance(content, str) and content:
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self._title = content.strip().strip('"').strip("'")[:200]
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def on_custom_event(self, name: str, data: Any, *, run_id: UUID, **kwargs: Any) -> None:
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if name not in {"title", "thread_title", "middleware:title"}:
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return
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if isinstance(data, str):
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self._title = data.strip()[:200]
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return
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if isinstance(data, dict):
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title = data.get("title")
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if isinstance(title, str):
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self._title = title.strip()[:200]
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def title(self) -> str | None:
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return self._title
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def _identify_caller(self, kwargs: dict[str, Any]) -> str:
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for tag in kwargs.get("tags") or []:
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if isinstance(tag, str) and (
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tag.startswith("subagent:")
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or tag.startswith("middleware:")
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or tag == "lead_agent"
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):
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return tag
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return "lead_agent"
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