diff --git a/libs/langchain/langchain/agents/agent.py b/libs/langchain/langchain/agents/agent.py
index 8fbdf976a11..4bfcde68e0c 100644
--- a/libs/langchain/langchain/agents/agent.py
+++ b/libs/langchain/langchain/agents/agent.py
@@ -23,6 +23,14 @@ from typing import (
 import yaml
 from langchain_core._api import deprecated
 from langchain_core.agents import AgentAction, AgentFinish, AgentStep
+from langchain_core.callbacks import (
+    AsyncCallbackManagerForChainRun,
+    AsyncCallbackManagerForToolRun,
+    BaseCallbackManager,
+    CallbackManagerForChainRun,
+    CallbackManagerForToolRun,
+    Callbacks,
+)
 from langchain_core.exceptions import OutputParserException
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.messages import BaseMessage
@@ -39,14 +47,6 @@ from langchain_core.utils.input import get_color_mapping
 from langchain.agents.agent_iterator import AgentExecutorIterator
 from langchain.agents.agent_types import AgentType
 from langchain.agents.tools import InvalidTool
-from langchain.callbacks.base import BaseCallbackManager
-from langchain.callbacks.manager import (
-    AsyncCallbackManagerForChainRun,
-    AsyncCallbackManagerForToolRun,
-    CallbackManagerForChainRun,
-    CallbackManagerForToolRun,
-    Callbacks,
-)
 from langchain.chains.base import Chain
 from langchain.chains.llm import LLMChain
 from langchain.utilities.asyncio import asyncio_timeout
diff --git a/libs/langchain/langchain/agents/agent_iterator.py b/libs/langchain/langchain/agents/agent_iterator.py
index 52b5bd2c1bc..12c995f2e97 100644
--- a/libs/langchain/langchain/agents/agent_iterator.py
+++ b/libs/langchain/langchain/agents/agent_iterator.py
@@ -20,20 +20,20 @@ from langchain_core.agents import (
     AgentFinish,
     AgentStep,
 )
-from langchain_core.load.dump import dumpd
-from langchain_core.outputs import RunInfo
-from langchain_core.runnables.utils import AddableDict
-from langchain_core.utils.input import get_color_mapping
-
-from langchain.callbacks.manager import (
+from langchain_core.callbacks import (
     AsyncCallbackManager,
     AsyncCallbackManagerForChainRun,
     CallbackManager,
     CallbackManagerForChainRun,
     Callbacks,
 )
+from langchain_core.load.dump import dumpd
+from langchain_core.outputs import RunInfo
+from langchain_core.runnables.utils import AddableDict
+from langchain_core.tools import BaseTool
+from langchain_core.utils.input import get_color_mapping
+
 from langchain.schema import RUN_KEY
-from langchain.tools import BaseTool
 from langchain.utilities.asyncio import asyncio_timeout
 
 if TYPE_CHECKING:
diff --git a/libs/langchain/langchain/agents/chat/base.py b/libs/langchain/langchain/agents/chat/base.py
index 00a320a543c..ffd36852e1e 100644
--- a/libs/langchain/langchain/agents/chat/base.py
+++ b/libs/langchain/langchain/agents/chat/base.py
@@ -2,6 +2,7 @@ from typing import Any, List, Optional, Sequence, Tuple
 
 from langchain_core._api import deprecated
 from langchain_core.agents import AgentAction
+from langchain_core.callbacks import BaseCallbackManager
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.prompts import BasePromptTemplate
 from langchain_core.prompts.chat import (
@@ -21,7 +22,6 @@ from langchain.agents.chat.prompt import (
     SYSTEM_MESSAGE_SUFFIX,
 )
 from langchain.agents.utils import validate_tools_single_input
-from langchain.callbacks.base import BaseCallbackManager
 from langchain.chains.llm import LLMChain
 
 
diff --git a/libs/langchain/langchain/agents/conversational/base.py b/libs/langchain/langchain/agents/conversational/base.py
index fcc03ad1be3..11e2fc12470 100644
--- a/libs/langchain/langchain/agents/conversational/base.py
+++ b/libs/langchain/langchain/agents/conversational/base.py
@@ -4,6 +4,7 @@ from __future__ import annotations
 from typing import Any, List, Optional, Sequence
 
 from langchain_core._api import deprecated
+from langchain_core.callbacks import BaseCallbackManager
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.prompts import PromptTemplate
 from langchain_core.pydantic_v1 import Field
@@ -14,7 +15,6 @@ from langchain.agents.agent_types import AgentType
 from langchain.agents.conversational.output_parser import ConvoOutputParser
 from langchain.agents.conversational.prompt import FORMAT_INSTRUCTIONS, PREFIX, SUFFIX
 from langchain.agents.utils import validate_tools_single_input
-from langchain.callbacks.base import BaseCallbackManager
 from langchain.chains import LLMChain
 
 
diff --git a/libs/langchain/langchain/agents/conversational_chat/base.py b/libs/langchain/langchain/agents/conversational_chat/base.py
index 00f0137cda0..8ee2218780b 100644
--- a/libs/langchain/langchain/agents/conversational_chat/base.py
+++ b/libs/langchain/langchain/agents/conversational_chat/base.py
@@ -5,6 +5,7 @@ from typing import Any, List, Optional, Sequence, Tuple
 
 from langchain_core._api import deprecated
 from langchain_core.agents import AgentAction
+from langchain_core.callbacks import BaseCallbackManager
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.messages import AIMessage, BaseMessage, HumanMessage
 from langchain_core.output_parsers import BaseOutputParser
@@ -26,7 +27,6 @@ from langchain.agents.conversational_chat.prompt import (
     TEMPLATE_TOOL_RESPONSE,
 )
 from langchain.agents.utils import validate_tools_single_input
-from langchain.callbacks.base import BaseCallbackManager
 from langchain.chains import LLMChain
 
 
diff --git a/libs/langchain/langchain/agents/conversational_chat/output_parser.py b/libs/langchain/langchain/agents/conversational_chat/output_parser.py
index 4265ee55334..46ccce6d571 100644
--- a/libs/langchain/langchain/agents/conversational_chat/output_parser.py
+++ b/libs/langchain/langchain/agents/conversational_chat/output_parser.py
@@ -4,10 +4,10 @@ from typing import Union
 
 from langchain_core.agents import AgentAction, AgentFinish
 from langchain_core.exceptions import OutputParserException
+from langchain_core.output_parsers.json import parse_json_markdown
 
 from langchain.agents import AgentOutputParser
 from langchain.agents.conversational_chat.prompt import FORMAT_INSTRUCTIONS
-from langchain.output_parsers.json import parse_json_markdown
 
 
 # Define a class that parses output for conversational agents
diff --git a/libs/langchain/langchain/agents/initialize.py b/libs/langchain/langchain/agents/initialize.py
index 65cfbd20039..890bc90e68f 100644
--- a/libs/langchain/langchain/agents/initialize.py
+++ b/libs/langchain/langchain/agents/initialize.py
@@ -2,13 +2,13 @@
 from typing import Any, Optional, Sequence
 
 from langchain_core._api import deprecated
+from langchain_core.callbacks import BaseCallbackManager
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.tools import BaseTool
 
 from langchain.agents.agent import AgentExecutor
 from langchain.agents.agent_types import AgentType
 from langchain.agents.loading import AGENT_TO_CLASS, load_agent
-from langchain.callbacks.base import BaseCallbackManager
 
 
 @deprecated(
diff --git a/libs/langchain/langchain/agents/load_tools.py b/libs/langchain/langchain/agents/load_tools.py
index 192048b9fc1..ab3a34cfee7 100644
--- a/libs/langchain/langchain/agents/load_tools.py
+++ b/libs/langchain/langchain/agents/load_tools.py
@@ -18,10 +18,10 @@ import warnings
 from typing import Any, Dict, List, Optional, Callable, Tuple
 from mypy_extensions import Arg, KwArg
 
-from langchain.agents.tools import Tool
+from langchain_core.tools import Tool
 from langchain_core.language_models import BaseLanguageModel
-from langchain.callbacks.base import BaseCallbackManager
-from langchain.callbacks.manager import Callbacks
+from langchain_core.callbacks import BaseCallbackManager
+from langchain_core.callbacks import Callbacks
 from langchain.chains.api import news_docs, open_meteo_docs, podcast_docs, tmdb_docs
 from langchain.chains.api.base import APIChain
 from langchain.chains.llm_math.base import LLMMathChain
diff --git a/libs/langchain/langchain/agents/loading.py b/libs/langchain/langchain/agents/loading.py
index 28540fcfd4a..e1d9747df2d 100644
--- a/libs/langchain/langchain/agents/loading.py
+++ b/libs/langchain/langchain/agents/loading.py
@@ -7,10 +7,10 @@ from typing import Any, List, Optional, Union
 import yaml
 from langchain_core._api import deprecated
 from langchain_core.language_models import BaseLanguageModel
+from langchain_core.tools import Tool
 from langchain_core.utils.loading import try_load_from_hub
 
 from langchain.agents.agent import BaseMultiActionAgent, BaseSingleActionAgent
-from langchain.agents.tools import Tool
 from langchain.agents.types import AGENT_TO_CLASS
 from langchain.chains.loading import load_chain, load_chain_from_config
 
diff --git a/libs/langchain/langchain/agents/mrkl/base.py b/libs/langchain/langchain/agents/mrkl/base.py
index 51e3ef2dbae..406390d3f8e 100644
--- a/libs/langchain/langchain/agents/mrkl/base.py
+++ b/libs/langchain/langchain/agents/mrkl/base.py
@@ -4,6 +4,7 @@ from __future__ import annotations
 from typing import Any, Callable, List, NamedTuple, Optional, Sequence
 
 from langchain_core._api import deprecated
+from langchain_core.callbacks import BaseCallbackManager
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.prompts import PromptTemplate
 from langchain_core.pydantic_v1 import Field
@@ -15,7 +16,6 @@ from langchain.agents.mrkl.output_parser import MRKLOutputParser
 from langchain.agents.mrkl.prompt import FORMAT_INSTRUCTIONS, PREFIX, SUFFIX
 from langchain.agents.tools import Tool
 from langchain.agents.utils import validate_tools_single_input
-from langchain.callbacks.base import BaseCallbackManager
 from langchain.chains import LLMChain
 
 
diff --git a/libs/langchain/langchain/agents/openai_assistant/base.py b/libs/langchain/langchain/agents/openai_assistant/base.py
index 498957ad8bc..84d99c8f97e 100644
--- a/libs/langchain/langchain/agents/openai_assistant/base.py
+++ b/libs/langchain/langchain/agents/openai_assistant/base.py
@@ -7,13 +7,12 @@ from typing import TYPE_CHECKING, Any, Dict, List, Optional, Sequence, Tuple, Un
 
 from langchain_community.tools.convert_to_openai import format_tool_to_openai_tool
 from langchain_core.agents import AgentAction, AgentFinish
+from langchain_core.callbacks import CallbackManager
 from langchain_core.load import dumpd
 from langchain_core.pydantic_v1 import Field
 from langchain_core.runnables import RunnableConfig, RunnableSerializable, ensure_config
 from langchain_core.tools import BaseTool
 
-from langchain.callbacks.manager import CallbackManager
-
 if TYPE_CHECKING:
     import openai
     from openai.types.beta.threads import ThreadMessage
diff --git a/libs/langchain/langchain/agents/openai_functions_agent/base.py b/libs/langchain/langchain/agents/openai_functions_agent/base.py
index 1d486dc6856..e0180693202 100644
--- a/libs/langchain/langchain/agents/openai_functions_agent/base.py
+++ b/libs/langchain/langchain/agents/openai_functions_agent/base.py
@@ -4,6 +4,7 @@ from typing import Any, List, Optional, Sequence, Tuple, Type, Union
 from langchain_community.tools.convert_to_openai import format_tool_to_openai_function
 from langchain_core._api import deprecated
 from langchain_core.agents import AgentAction, AgentFinish
+from langchain_core.callbacks import BaseCallbackManager, Callbacks
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.messages import (
     BaseMessage,
@@ -27,8 +28,6 @@ from langchain.agents.format_scratchpad.openai_functions import (
 from langchain.agents.output_parsers.openai_functions import (
     OpenAIFunctionsAgentOutputParser,
 )
-from langchain.callbacks.base import BaseCallbackManager
-from langchain.callbacks.manager import Callbacks
 
 
 @deprecated("0.1.0", alternative="create_openai_functions_agent", removal="0.2.0")
diff --git a/libs/langchain/langchain/agents/openai_functions_multi_agent/base.py b/libs/langchain/langchain/agents/openai_functions_multi_agent/base.py
index 168f852c591..03d804c60fd 100644
--- a/libs/langchain/langchain/agents/openai_functions_multi_agent/base.py
+++ b/libs/langchain/langchain/agents/openai_functions_multi_agent/base.py
@@ -5,6 +5,7 @@ from typing import Any, List, Optional, Sequence, Tuple, Union
 
 from langchain_core._api import deprecated
 from langchain_core.agents import AgentAction, AgentActionMessageLog, AgentFinish
+from langchain_core.callbacks import BaseCallbackManager, Callbacks
 from langchain_core.exceptions import OutputParserException
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.messages import (
@@ -20,14 +21,12 @@ from langchain_core.prompts.chat import (
     MessagesPlaceholder,
 )
 from langchain_core.pydantic_v1 import root_validator
+from langchain_core.tools import BaseTool
 
 from langchain.agents import BaseMultiActionAgent
 from langchain.agents.format_scratchpad.openai_functions import (
     format_to_openai_function_messages,
 )
-from langchain.callbacks.base import BaseCallbackManager
-from langchain.callbacks.manager import Callbacks
-from langchain.tools import BaseTool
 
 # For backwards compatibility
 _FunctionsAgentAction = AgentActionMessageLog
diff --git a/libs/langchain/langchain/agents/output_parsers/json.py b/libs/langchain/langchain/agents/output_parsers/json.py
index 5fa543ea9df..2dbc56178ff 100644
--- a/libs/langchain/langchain/agents/output_parsers/json.py
+++ b/libs/langchain/langchain/agents/output_parsers/json.py
@@ -5,9 +5,9 @@ from typing import Union
 
 from langchain_core.agents import AgentAction, AgentFinish
 from langchain_core.exceptions import OutputParserException
+from langchain_core.output_parsers.json import parse_json_markdown
 
 from langchain.agents.agent import AgentOutputParser
-from langchain.output_parsers.json import parse_json_markdown
 
 logger = logging.getLogger(__name__)
 
diff --git a/libs/langchain/langchain/agents/react/base.py b/libs/langchain/langchain/agents/react/base.py
index fba742ac458..437eb80e720 100644
--- a/libs/langchain/langchain/agents/react/base.py
+++ b/libs/langchain/langchain/agents/react/base.py
@@ -6,14 +6,13 @@ from langchain_core.documents import Document
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.prompts import BasePromptTemplate
 from langchain_core.pydantic_v1 import Field
-from langchain_core.tools import BaseTool
+from langchain_core.tools import BaseTool, Tool
 
 from langchain.agents.agent import Agent, AgentExecutor, AgentOutputParser
 from langchain.agents.agent_types import AgentType
 from langchain.agents.react.output_parser import ReActOutputParser
 from langchain.agents.react.textworld_prompt import TEXTWORLD_PROMPT
 from langchain.agents.react.wiki_prompt import WIKI_PROMPT
-from langchain.agents.tools import Tool
 from langchain.agents.utils import validate_tools_single_input
 from langchain.docstore.base import Docstore
 
diff --git a/libs/langchain/langchain/agents/self_ask_with_search/base.py b/libs/langchain/langchain/agents/self_ask_with_search/base.py
index 9df14cb4335..d7526f4c548 100644
--- a/libs/langchain/langchain/agents/self_ask_with_search/base.py
+++ b/libs/langchain/langchain/agents/self_ask_with_search/base.py
@@ -9,14 +9,13 @@ from langchain_core.language_models import BaseLanguageModel
 from langchain_core.prompts import BasePromptTemplate
 from langchain_core.pydantic_v1 import Field
 from langchain_core.runnables import Runnable, RunnablePassthrough
-from langchain_core.tools import BaseTool
+from langchain_core.tools import BaseTool, Tool
 
 from langchain.agents.agent import Agent, AgentExecutor, AgentOutputParser
 from langchain.agents.agent_types import AgentType
 from langchain.agents.format_scratchpad import format_log_to_str
 from langchain.agents.self_ask_with_search.output_parser import SelfAskOutputParser
 from langchain.agents.self_ask_with_search.prompt import PROMPT
-from langchain.agents.tools import Tool
 from langchain.agents.utils import validate_tools_single_input
 
 
diff --git a/libs/langchain/langchain/agents/structured_chat/base.py b/libs/langchain/langchain/agents/structured_chat/base.py
index 53e11b33c01..ef037860d3c 100644
--- a/libs/langchain/langchain/agents/structured_chat/base.py
+++ b/libs/langchain/langchain/agents/structured_chat/base.py
@@ -3,6 +3,7 @@ from typing import Any, List, Optional, Sequence, Tuple
 
 from langchain_core._api import deprecated
 from langchain_core.agents import AgentAction
+from langchain_core.callbacks import BaseCallbackManager
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.prompts import BasePromptTemplate
 from langchain_core.prompts.chat import (
@@ -12,6 +13,7 @@ from langchain_core.prompts.chat import (
 )
 from langchain_core.pydantic_v1 import Field
 from langchain_core.runnables import Runnable, RunnablePassthrough
+from langchain_core.tools import BaseTool
 
 from langchain.agents.agent import Agent, AgentOutputParser
 from langchain.agents.format_scratchpad import format_log_to_str
@@ -20,9 +22,7 @@ from langchain.agents.structured_chat.output_parser import (
     StructuredChatOutputParserWithRetries,
 )
 from langchain.agents.structured_chat.prompt import FORMAT_INSTRUCTIONS, PREFIX, SUFFIX
-from langchain.callbacks.base import BaseCallbackManager
 from langchain.chains.llm import LLMChain
-from langchain.tools import BaseTool
 from langchain.tools.render import render_text_description_and_args
 
 HUMAN_MESSAGE_TEMPLATE = "{input}\n\n{agent_scratchpad}"
diff --git a/libs/langchain/langchain/agents/tools.py b/libs/langchain/langchain/agents/tools.py
index aaf360afbc5..e804ab25025 100644
--- a/libs/langchain/langchain/agents/tools.py
+++ b/libs/langchain/langchain/agents/tools.py
@@ -1,12 +1,11 @@
 """Interface for tools."""
 from typing import List, Optional
 
-from langchain_core.tools import BaseTool, Tool, tool
-
-from langchain.callbacks.manager import (
+from langchain_core.callbacks import (
     AsyncCallbackManagerForToolRun,
     CallbackManagerForToolRun,
 )
+from langchain_core.tools import BaseTool, Tool, tool
 
 
 class InvalidTool(BaseTool):
diff --git a/libs/langchain/langchain/agents/xml/base.py b/libs/langchain/langchain/agents/xml/base.py
index bd678979f74..be85a7b9738 100644
--- a/libs/langchain/langchain/agents/xml/base.py
+++ b/libs/langchain/langchain/agents/xml/base.py
@@ -2,6 +2,7 @@ from typing import Any, List, Sequence, Tuple, Union
 
 from langchain_core._api import deprecated
 from langchain_core.agents import AgentAction, AgentFinish
+from langchain_core.callbacks import Callbacks
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.prompts.base import BasePromptTemplate
 from langchain_core.prompts.chat import AIMessagePromptTemplate, ChatPromptTemplate
@@ -12,7 +13,6 @@ from langchain.agents.agent import BaseSingleActionAgent
 from langchain.agents.format_scratchpad import format_xml
 from langchain.agents.output_parsers import XMLAgentOutputParser
 from langchain.agents.xml.prompt import agent_instructions
-from langchain.callbacks.base import Callbacks
 from langchain.chains.llm import LLMChain
 from langchain.tools.render import render_text_description