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https://github.com/bytedance/deer-flow.git
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fc94e90f6c
* fix(setup-agent): prevent data loss when setup fails on existing agent directory Record whether the agent directory pre-existed before mkdir, and only run shutil.rmtree cleanup when the directory was newly created during this call. Previously, any failure would delete the entire directory including pre-existing SOUL.md and config.yaml. * fix: address PR review — init variables before try, remove unused result * style: fix ruff I001 import block formatting in test file * style: add missing blank lines between top-level definitions in test file
68 lines
2.4 KiB
Python
68 lines
2.4 KiB
Python
import logging
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import yaml
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from langchain_core.messages import ToolMessage
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from langchain_core.tools import tool
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from langgraph.prebuilt import ToolRuntime
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from langgraph.types import Command
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from deerflow.config.agents_config import validate_agent_name
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from deerflow.config.paths import get_paths
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logger = logging.getLogger(__name__)
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@tool
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def setup_agent(
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soul: str,
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description: str,
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runtime: ToolRuntime,
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) -> Command:
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"""Setup the custom DeerFlow agent.
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Args:
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soul: Full SOUL.md content defining the agent's personality and behavior.
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description: One-line description of what the agent does.
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"""
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agent_name: str | None = runtime.context.get("agent_name") if runtime.context else None
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agent_dir = None
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is_new_dir = False
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try:
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agent_name = validate_agent_name(agent_name)
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paths = get_paths()
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agent_dir = paths.agent_dir(agent_name) if agent_name else paths.base_dir
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is_new_dir = not agent_dir.exists()
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agent_dir.mkdir(parents=True, exist_ok=True)
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if agent_name:
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# If agent_name is provided, we are creating a custom agent in the agents/ directory
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config_data: dict = {"name": agent_name}
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if description:
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config_data["description"] = description
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config_file = agent_dir / "config.yaml"
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with open(config_file, "w", encoding="utf-8") as f:
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yaml.dump(config_data, f, default_flow_style=False, allow_unicode=True)
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soul_file = agent_dir / "SOUL.md"
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soul_file.write_text(soul, encoding="utf-8")
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logger.info(f"[agent_creator] Created agent '{agent_name}' at {agent_dir}")
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return Command(
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update={
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"created_agent_name": agent_name,
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"messages": [ToolMessage(content=f"Agent '{agent_name}' created successfully!", tool_call_id=runtime.tool_call_id)],
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}
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)
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except Exception as e:
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import shutil
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if agent_name and is_new_dir and agent_dir is not None and agent_dir.exists():
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# Cleanup the custom agent directory only if it was newly created during this call
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shutil.rmtree(agent_dir)
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logger.error(f"[agent_creator] Failed to create agent '{agent_name}': {e}", exc_info=True)
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return Command(update={"messages": [ToolMessage(content=f"Error: {e}", tool_call_id=runtime.tool_call_id)]})
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