BaseAgent (base_agent.py)

Abstract base class defining the interface and core attributes (role, goal, backstory, tools, cache, execution parameters) for all agents in the CrewAI framework.

import uuid
from abc import ABC, abstractmethod
from copy import copy as shallow_copy
from hashlib import md5
from typing import Any, Callable, Dict, List, Optional, TypeVar

from pydantic import (
    UUID4,
    BaseModel,
    Field,
    InstanceOf,
    PrivateAttr,
    field_validator,
    model_validator,
)
from pydantic_core import PydanticCustomError

from crewai.agents.agent_builder.utilities.base_token_process import TokenProcess
from crewai.agents.cache.cache_handler import CacheHandler
from crewai.agents.tools_handler import ToolsHandler
from crewai.knowledge.knowledge import Knowledge
from crewai.knowledge.knowledge_config import KnowledgeConfig
from crewai.knowledge.source.base_knowledge_source import BaseKnowledgeSource
from crewai.security.security_config import SecurityConfig

... (truncated -- full source via MCP)