diff --git a/libs/core/langchain_core/messages/tool.py b/libs/core/langchain_core/messages/tool.py
index 61a8d6252f1..e6146ed1f26 100644
--- a/libs/core/langchain_core/messages/tool.py
+++ b/libs/core/langchain_core/messages/tool.py
@@ -21,8 +21,11 @@ class ToolMessage(BaseMessage):
 
             ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
 
+
     Example: A ToolMessage where only part of the tool output is sent to the model
-        and the full output is passed in to raw_output.
+        and the full output is passed in to artifact.
+
+        .. versionadded:: 0.2.17
 
         .. code-block:: python
 
@@ -36,7 +39,7 @@ class ToolMessage(BaseMessage):
 
             ToolMessage(
                 content=tool_output["stdout"],
-                raw_output=tool_output,
+                artifact=tool_output,
                 tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
             )
 
@@ -54,12 +57,14 @@ class ToolMessage(BaseMessage):
     type: Literal["tool"] = "tool"
     """The type of the message (used for serialization). Defaults to "tool"."""
 
-    raw_output: Any = None
-    """The raw output of the tool.
+    artifact: Any = None
+    """Artifact of the Tool execution which is not meant to be sent to the model.
     
-    **Not part of the payload sent to the model.** Should only be specified if it is 
-    different from the message content, i.e. if only a subset of the full tool output
-    is being passed as message content.
+    Should only be specified if it is different from the message content, e.g. if only 
+    a subset of the full tool output is being passed as message content but the full
+    output is needed in other parts of the code.
+    
+    .. versionadded:: 0.2.17
     """
 
     @classmethod
@@ -106,7 +111,7 @@ class ToolMessageChunk(ToolMessage, BaseMessageChunk):
             return self.__class__(
                 tool_call_id=self.tool_call_id,
                 content=merge_content(self.content, other.content),
-                raw_output=merge_obj(self.raw_output, other.raw_output),
+                artifact=merge_obj(self.artifact, other.artifact),
                 additional_kwargs=merge_dicts(
                     self.additional_kwargs, other.additional_kwargs
                 ),
diff --git a/libs/core/langchain_core/messages/utils.py b/libs/core/langchain_core/messages/utils.py
index 8791527c081..53603dd9804 100644
--- a/libs/core/langchain_core/messages/utils.py
+++ b/libs/core/langchain_core/messages/utils.py
@@ -221,8 +221,8 @@ def _create_message_from_message_type(
     elif message_type == "function":
         message = FunctionMessage(content=content, **kwargs)
     elif message_type == "tool":
-        raw_output = kwargs.get("additional_kwargs", {}).pop("raw_output", None)
-        message = ToolMessage(content=content, raw_output=raw_output, **kwargs)
+        artifact = kwargs.get("additional_kwargs", {}).pop("artifact", None)
+        message = ToolMessage(content=content, artifact=artifact, **kwargs)
     elif message_type == "remove":
         message = RemoveMessage(**kwargs)
     else:
diff --git a/libs/core/langchain_core/tools.py b/libs/core/langchain_core/tools.py
index cb65bf6165d..d90c19fc2b8 100644
--- a/libs/core/langchain_core/tools.py
+++ b/libs/core/langchain_core/tools.py
@@ -382,12 +382,12 @@ class ChildTool(BaseTool):
     ] = False
     """Handle the content of the ValidationError thrown."""
 
-    response_format: Literal["content", "content_and_raw_output"] = "content"
+    response_format: Literal["content", "content_and_artifact"] = "content"
     """The tool response format. 
 
     If "content" then the output of the tool is interpreted as the contents of a 
-    ToolMessage. If "content_and_raw_output" then the output is expected to be a 
-    two-tuple corresponding to the (content, raw_output) of a ToolMessage.
+    ToolMessage. If "content_and_artifact" then the output is expected to be a 
+    two-tuple corresponding to the (content, artifact) of a ToolMessage.
     """
 
     class Config(Serializable.Config):
@@ -540,7 +540,7 @@ class ChildTool(BaseTool):
         )
 
         content = None
-        raw_output = None
+        artifact = None
         error_to_raise: Union[Exception, KeyboardInterrupt, None] = None
         try:
             child_config = patch_config(config, callbacks=run_manager.get_child())
@@ -553,15 +553,15 @@ class ChildTool(BaseTool):
             if config_param := _get_runnable_config_param(self._run):
                 tool_kwargs[config_param] = config
             response = context.run(self._run, *tool_args, **tool_kwargs)
-            if self.response_format == "content_and_raw_output":
+            if self.response_format == "content_and_artifact":
                 if not isinstance(response, tuple) or len(response) != 2:
                     raise ValueError(
-                        "Since response_format='content_and_raw_output' "
+                        "Since response_format='content_and_artifact' "
                         "a two-tuple of the message content and raw tool output is "
                         f"expected. Instead generated response of type: "
                         f"{type(response)}."
                     )
-                content, raw_output = response
+                content, artifact = response
             else:
                 content = response
         except ValidationError as e:
@@ -580,7 +580,7 @@ class ChildTool(BaseTool):
         if error_to_raise:
             run_manager.on_tool_error(error_to_raise)
             raise error_to_raise
-        output = _format_output(content, raw_output, tool_call_id)
+        output = _format_output(content, artifact, tool_call_id)
         run_manager.on_tool_end(output, color=color, name=self.name, **kwargs)
         return output
 
@@ -624,7 +624,7 @@ class ChildTool(BaseTool):
             **kwargs,
         )
         content = None
-        raw_output = None
+        artifact = None
         error_to_raise: Optional[Union[Exception, KeyboardInterrupt]] = None
         try:
             tool_args, tool_kwargs = self._to_args_and_kwargs(tool_input)
@@ -644,15 +644,15 @@ class ChildTool(BaseTool):
                 response = await asyncio.create_task(coro, context=context)  # type: ignore
             else:
                 response = await coro
-            if self.response_format == "content_and_raw_output":
+            if self.response_format == "content_and_artifact":
                 if not isinstance(response, tuple) or len(response) != 2:
                     raise ValueError(
-                        "Since response_format='content_and_raw_output' "
+                        "Since response_format='content_and_artifact' "
                         "a two-tuple of the message content and raw tool output is "
                         f"expected. Instead generated response of type: "
                         f"{type(response)}."
                     )
-                content, raw_output = response
+                content, artifact = response
             else:
                 content = response
         except ValidationError as e:
@@ -672,7 +672,7 @@ class ChildTool(BaseTool):
             await run_manager.on_tool_error(error_to_raise)
             raise error_to_raise
 
-        output = _format_output(content, raw_output, tool_call_id)
+        output = _format_output(content, artifact, tool_call_id)
         await run_manager.on_tool_end(output, color=color, name=self.name, **kwargs)
         return output
 
@@ -883,7 +883,7 @@ class StructuredTool(BaseTool):
         args_schema: Optional[Type[BaseModel]] = None,
         infer_schema: bool = True,
         *,
-        response_format: Literal["content", "content_and_raw_output"] = "content",
+        response_format: Literal["content", "content_and_artifact"] = "content",
         parse_docstring: bool = False,
         error_on_invalid_docstring: bool = False,
         **kwargs: Any,
@@ -902,8 +902,8 @@ class StructuredTool(BaseTool):
             infer_schema: Whether to infer the schema from the function's signature
             response_format: The tool response format. If "content" then the output of
                 the tool is interpreted as the contents of a ToolMessage. If
-                "content_and_raw_output" then the output is expected to be a two-tuple
-                corresponding to the (content, raw_output) of a ToolMessage.
+                "content_and_artifact" then the output is expected to be a two-tuple
+                corresponding to the (content, artifact) of a ToolMessage.
             parse_docstring: if ``infer_schema`` and ``parse_docstring``, will attempt
                 to parse parameter descriptions from Google Style function docstrings.
             error_on_invalid_docstring: if ``parse_docstring`` is provided, configures
@@ -980,7 +980,7 @@ def tool(
     return_direct: bool = False,
     args_schema: Optional[Type[BaseModel]] = None,
     infer_schema: bool = True,
-    response_format: Literal["content", "content_and_raw_output"] = "content",
+    response_format: Literal["content", "content_and_artifact"] = "content",
     parse_docstring: bool = False,
     error_on_invalid_docstring: bool = True,
 ) -> Callable:
@@ -996,8 +996,8 @@ def tool(
             accept a dictionary input to its `run()` function.
         response_format: The tool response format. If "content" then the output of
             the tool is interpreted as the contents of a ToolMessage. If
-            "content_and_raw_output" then the output is expected to be a two-tuple
-            corresponding to the (content, raw_output) of a ToolMessage.
+            "content_and_artifact" then the output is expected to be a two-tuple
+            corresponding to the (content, artifact) of a ToolMessage.
         parse_docstring: if ``infer_schema`` and ``parse_docstring``, will attempt to
             parse parameter descriptions from Google Style function docstrings.
         error_on_invalid_docstring: if ``parse_docstring`` is provided, configures
@@ -1020,7 +1020,7 @@ def tool(
                 # Searches the API for the query.
                 return
 
-            @tool(response_format="content_and_raw_output")
+            @tool(response_format="content_and_artifact")
             def search_api(query: str) -> Tuple[str, dict]:
                 return "partial json of results", {"full": "object of results"}
 
@@ -1385,7 +1385,7 @@ def _prep_run_args(
 
 
 def _format_output(
-    content: Any, raw_output: Any, tool_call_id: Optional[str]
+    content: Any, artifact: Any, tool_call_id: Optional[str]
 ) -> Union[ToolMessage, Any]:
     if tool_call_id:
         # NOTE: This will fail to stringify lists which aren't actually content blocks
@@ -1397,7 +1397,7 @@ def _format_output(
             and isinstance(content[0], (str, dict))
         ):
             content = _stringify(content)
-        return ToolMessage(content, raw_output=raw_output, tool_call_id=tool_call_id)
+        return ToolMessage(content, artifact=artifact, tool_call_id=tool_call_id)
     else:
         return content
 
diff --git a/libs/core/tests/unit_tests/prompts/__snapshots__/test_chat.ambr b/libs/core/tests/unit_tests/prompts/__snapshots__/test_chat.ambr
index 199af98ece4..3f59bb44292 100644
--- a/libs/core/tests/unit_tests/prompts/__snapshots__/test_chat.ambr
+++ b/libs/core/tests/unit_tests/prompts/__snapshots__/test_chat.ambr
@@ -457,8 +457,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -472,7 +475,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -485,6 +488,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -514,9 +520,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -1062,8 +1065,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -1077,7 +1083,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -1090,6 +1096,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -1119,9 +1128,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
diff --git a/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr b/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr
index 6ec737beba4..5eb5c50b13d 100644
--- a/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr
+++ b/libs/core/tests/unit_tests/runnables/__snapshots__/test_graph.ambr
@@ -813,8 +813,11 @@
                 
                         ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
                 
+                
                 Example: A ToolMessage where only part of the tool output is sent to the model
-                    and the full output is passed in to raw_output.
+                    and the full output is passed in to artifact.
+                
+                    .. versionadded:: 0.2.17
                 
                     .. code-block:: python
                 
@@ -828,7 +831,7 @@
                 
                         ToolMessage(
                             content=tool_output["stdout"],
-                            raw_output=tool_output,
+                            artifact=tool_output,
                             tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                         )
                 
@@ -841,6 +844,9 @@
                   'title': 'Additional Kwargs',
                   'type': 'object',
                 }),
+                'artifact': dict({
+                  'title': 'Artifact',
+                }),
                 'content': dict({
                   'anyOf': list([
                     dict({
@@ -870,9 +876,6 @@
                   'title': 'Name',
                   'type': 'string',
                 }),
-                'raw_output': dict({
-                  'title': 'Raw Output',
-                }),
                 'response_metadata': dict({
                   'title': 'Response Metadata',
                   'type': 'object',
diff --git a/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr b/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr
index f29de06b133..be95e6d972f 100644
--- a/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr
+++ b/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr
@@ -5739,8 +5739,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -5754,7 +5757,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -5767,6 +5770,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -5796,9 +5802,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -6413,8 +6416,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -6428,7 +6434,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -6441,6 +6447,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -6470,9 +6479,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -7002,8 +7008,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -7017,7 +7026,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -7030,6 +7039,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -7059,9 +7071,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -7648,8 +7657,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -7663,7 +7675,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -7676,6 +7688,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -7705,9 +7720,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -8297,8 +8309,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -8312,7 +8327,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -8325,6 +8340,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -8354,9 +8372,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -8893,8 +8908,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -8908,7 +8926,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -8921,6 +8939,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -8950,9 +8971,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -9462,8 +9480,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -9477,7 +9498,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -9490,6 +9511,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -9519,9 +9543,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
@@ -10140,8 +10161,11 @@
           
                   ToolMessage(content='42', tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL')
           
+          
           Example: A ToolMessage where only part of the tool output is sent to the model
-              and the full output is passed in to raw_output.
+              and the full output is passed in to artifact.
+          
+              .. versionadded:: 0.2.17
           
               .. code-block:: python
           
@@ -10155,7 +10179,7 @@
           
                   ToolMessage(
                       content=tool_output["stdout"],
-                      raw_output=tool_output,
+                      artifact=tool_output,
                       tool_call_id='call_Jja7J89XsjrOLA5r!MEOW!SL',
                   )
           
@@ -10168,6 +10192,9 @@
             'title': 'Additional Kwargs',
             'type': 'object',
           }),
+          'artifact': dict({
+            'title': 'Artifact',
+          }),
           'content': dict({
             'anyOf': list([
               dict({
@@ -10197,9 +10224,6 @@
             'title': 'Name',
             'type': 'string',
           }),
-          'raw_output': dict({
-            'title': 'Raw Output',
-          }),
           'response_metadata': dict({
             'title': 'Response Metadata',
             'type': 'object',
diff --git a/libs/core/tests/unit_tests/test_messages.py b/libs/core/tests/unit_tests/test_messages.py
index e334207ecd8..5de94903704 100644
--- a/libs/core/tests/unit_tests/test_messages.py
+++ b/libs/core/tests/unit_tests/test_messages.py
@@ -662,7 +662,7 @@ def test_convert_to_messages() -> None:
                 "role": "tool",
                 "tool_call_id": "tool_id2",
                 "content": "Bye!",
-                "raw_output": {"foo": 123},
+                "artifact": {"foo": 123},
             },
             {"role": "remove", "id": "message_to_remove", "content": ""},
         ]
@@ -685,7 +685,7 @@ def test_convert_to_messages() -> None:
             tool_calls=[ToolCall(name="greet", args={"name": "Jane"}, id="tool_id")],
         ),
         ToolMessage(tool_call_id="tool_id", content="Hi!"),
-        ToolMessage(tool_call_id="tool_id2", content="Bye!", raw_output={"foo": 123}),
+        ToolMessage(tool_call_id="tool_id2", content="Bye!", artifact={"foo": 123}),
         RemoveMessage(id="message_to_remove"),
     ]
     assert expected == actual
@@ -787,7 +787,7 @@ def test_merge_tool_calls() -> None:
 
 
 def test_tool_message_serdes() -> None:
-    message = ToolMessage("foo", raw_output={"bar": {"baz": 123}}, tool_call_id="1")
+    message = ToolMessage("foo", artifact={"bar": {"baz": 123}}, tool_call_id="1")
     ser_message = {
         "lc": 1,
         "type": "constructor",
@@ -796,7 +796,7 @@ def test_tool_message_serdes() -> None:
             "content": "foo",
             "type": "tool",
             "tool_call_id": "1",
-            "raw_output": {"bar": {"baz": 123}},
+            "artifact": {"bar": {"baz": 123}},
         },
     }
     assert dumpd(message) == ser_message
@@ -809,7 +809,7 @@ class BadObject:
 
 def test_tool_message_ser_non_serializable() -> None:
     bad_obj = BadObject()
-    message = ToolMessage("foo", raw_output=bad_obj, tool_call_id="1")
+    message = ToolMessage("foo", artifact=bad_obj, tool_call_id="1")
     ser_message = {
         "lc": 1,
         "type": "constructor",
@@ -818,7 +818,7 @@ def test_tool_message_ser_non_serializable() -> None:
             "content": "foo",
             "type": "tool",
             "tool_call_id": "1",
-            "raw_output": {
+            "artifact": {
                 "lc": 1,
                 "type": "not_implemented",
                 "id": ["tests", "unit_tests", "test_messages", "BadObject"],
@@ -832,14 +832,14 @@ def test_tool_message_ser_non_serializable() -> None:
 
 
 def test_tool_message_to_dict() -> None:
-    message = ToolMessage("foo", raw_output={"bar": {"baz": 123}}, tool_call_id="1")
+    message = ToolMessage("foo", artifact={"bar": {"baz": 123}}, tool_call_id="1")
     expected = {
         "type": "tool",
         "data": {
             "content": "foo",
             "additional_kwargs": {},
             "response_metadata": {},
-            "raw_output": {"bar": {"baz": 123}},
+            "artifact": {"bar": {"baz": 123}},
             "type": "tool",
             "name": None,
             "id": None,
@@ -851,16 +851,16 @@ def test_tool_message_to_dict() -> None:
 
 
 def test_tool_message_repr() -> None:
-    message = ToolMessage("foo", raw_output={"bar": {"baz": 123}}, tool_call_id="1")
+    message = ToolMessage("foo", artifact={"bar": {"baz": 123}}, tool_call_id="1")
     expected = (
-        "ToolMessage(content='foo', tool_call_id='1', raw_output={'bar': {'baz': 123}})"
+        "ToolMessage(content='foo', tool_call_id='1', artifact={'bar': {'baz': 123}})"
     )
     actual = repr(message)
     assert expected == actual
 
 
 def test_tool_message_str() -> None:
-    message = ToolMessage("foo", raw_output={"bar": {"baz": 123}}, tool_call_id="1")
-    expected = "content='foo' tool_call_id='1' raw_output={'bar': {'baz': 123}}"
+    message = ToolMessage("foo", artifact={"bar": {"baz": 123}}, tool_call_id="1")
+    expected = "content='foo' tool_call_id='1' artifact={'bar': {'baz': 123}}"
     actual = str(message)
     assert expected == actual
diff --git a/libs/core/tests/unit_tests/test_tools.py b/libs/core/tests/unit_tests/test_tools.py
index e83a35d35e8..b50801ee3a1 100644
--- a/libs/core/tests/unit_tests/test_tools.py
+++ b/libs/core/tests/unit_tests/test_tools.py
@@ -1150,7 +1150,7 @@ class _MockStructuredToolWithRawOutput(BaseTool):
     name: str = "structured_api"
     args_schema: Type[BaseModel] = _MockSchema
     description: str = "A Structured Tool"
-    response_format: Literal["content_and_raw_output"] = "content_and_raw_output"
+    response_format: Literal["content_and_artifact"] = "content_and_artifact"
 
     def _run(
         self, arg1: int, arg2: bool, arg3: Optional[dict] = None
@@ -1158,8 +1158,8 @@ class _MockStructuredToolWithRawOutput(BaseTool):
         return f"{arg1} {arg2}", {"arg1": arg1, "arg2": arg2, "arg3": arg3}
 
 
-@tool("structured_api", response_format="content_and_raw_output")
-def _mock_structured_tool_with_raw_output(
+@tool("structured_api", response_format="content_and_artifact")
+def _mock_structured_tool_with_artifact(
     arg1: int, arg2: bool, arg3: Optional[dict] = None
 ) -> Tuple[str, dict]:
     """A Structured Tool"""
@@ -1167,16 +1167,16 @@ def _mock_structured_tool_with_raw_output(
 
 
 @pytest.mark.parametrize(
-    "tool", [_MockStructuredToolWithRawOutput(), _mock_structured_tool_with_raw_output]
+    "tool", [_MockStructuredToolWithRawOutput(), _mock_structured_tool_with_artifact]
 )
-def test_tool_call_input_tool_message_with_raw_output(tool: BaseTool) -> None:
+def test_tool_call_input_tool_message_with_artifact(tool: BaseTool) -> None:
     tool_call: Dict = {
         "name": "structured_api",
         "args": {"arg1": 1, "arg2": True, "arg3": {"img": "base64string..."}},
         "id": "123",
         "type": "tool_call",
     }
-    expected = ToolMessage("1 True", raw_output=tool_call["args"], tool_call_id="123")
+    expected = ToolMessage("1 True", artifact=tool_call["args"], tool_call_id="123")
     actual = tool.invoke(tool_call)
     assert actual == expected
 
diff --git a/libs/partners/azure-dynamic-sessions/langchain_azure_dynamic_sessions/tools/sessions.py b/libs/partners/azure-dynamic-sessions/langchain_azure_dynamic_sessions/tools/sessions.py
index 334ecfd0173..99d5b3b0340 100644
--- a/libs/partners/azure-dynamic-sessions/langchain_azure_dynamic_sessions/tools/sessions.py
+++ b/libs/partners/azure-dynamic-sessions/langchain_azure_dynamic_sessions/tools/sessions.py
@@ -127,7 +127,7 @@ class SessionsPythonREPLTool(BaseTool):
     session_id: str = str(uuid4())
     """The session ID to use for the code interpreter. Defaults to a random UUID."""
 
-    response_format: Literal["content_and_raw_output"] = "content_and_raw_output"
+    response_format: Literal["content_and_artifact"] = "content_and_artifact"
 
     def _build_url(self, path: str) -> str:
         pool_management_endpoint = self.pool_management_endpoint