mirror of
https://github.com/crewAIInc/crewAI.git
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89 lines
2.8 KiB
Python
89 lines
2.8 KiB
Python
import json
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from typing import List, Optional
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from pydantic.v1 import BaseModel, Field, Json, root_validator
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from .agent import Agent
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from .process import Process
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from .task import Task
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from .tools.agent_tools import AgentTools
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class Crew(BaseModel):
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"""
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Class that represents a group of agents, how they should work together and
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their tasks.
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"""
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tasks: Optional[List[Task]] = Field(description="List of tasks")
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agents: Optional[List[Agent]] = Field(description="List of agents in this crew.")
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process: Process = Field(
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description="Process that the crew will follow.", default=Process.sequential
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)
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verbose: bool = Field(
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description="Verbose mode for the Agent Execution", default=False
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)
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config: Optional[Json] = Field(
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description="Configuration of the crew.", default=None
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)
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@root_validator(pre=True)
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def check_config(_cls, values):
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if not values.get("config") and (
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not values.get("agents") and not values.get("tasks")
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):
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raise ValueError("Either agents and task need to be set or config.")
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if values.get("config"):
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config = json.loads(values.get("config"))
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if not config.get("agents") or not config.get("tasks"):
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raise ValueError("Config should have agents and tasks.")
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values["agents"] = [Agent(**agent) for agent in config["agents"]]
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tasks = []
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for task in config["tasks"]:
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task_agent = [
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agt for agt in values["agents"] if agt.role == task["agent"]
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][0]
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del task["agent"]
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tasks.append(Task(**task, agent=task_agent))
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values["tasks"] = tasks
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return values
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def kickoff(self) -> str:
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"""
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Kickoff the crew to work on it's tasks.
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Returns:
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output (List[str]): Output of the crew for each task.
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"""
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if self.process == Process.sequential:
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return self.__sequential_loop()
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def __sequential_loop(self) -> str:
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"""
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Loop that executes the sequential process.
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Returns:
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output (str): Output of the crew.
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"""
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task_outcome = None
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for task in self.tasks:
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# Add delegation tools to the task if the agent allows it
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if task.agent.allow_delegation:
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tools = AgentTools(agents=self.agents).tools()
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task.tools += tools
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self.__log(f"\nWorking Agent: {task.agent.role}")
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self.__log(f"Starting Task: {task.description} ...")
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task_outcome = task.execute(task_outcome)
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self.__log(f"Task output: {task_outcome}")
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return task_outcome
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def __log(self, message):
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if self.verbose:
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print(message)
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