diff --git a/.gitignore b/.gitignore
index 128470d..80c13c1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,5 +12,4 @@ dist
 core-data
 core-logs
 config.json
-~*
-response_message_handler.py
\ No newline at end of file
+~*
\ No newline at end of file
diff --git a/aidial_interceptors_sdk/chat_completion/response_message_handler.py b/aidial_interceptors_sdk/chat_completion/response_message_handler.py
new file mode 100644
index 0000000..4d6d318
--- /dev/null
+++ b/aidial_interceptors_sdk/chat_completion/response_message_handler.py
@@ -0,0 +1,111 @@
+"""
+CODE-GENERATED from aidial_interceptors_sdk/chat_completion/request_message_handler.py module.
+DO NOT MODIFY THIS FILE.
+
+Callbacks to handle messages in the chat completion response.
+"""
+
+from abc import ABC
+from typing import List
+
+from aidial_sdk.pydantic_v1 import BaseModel
+
+from aidial_interceptors_sdk.chat_completion.element_path import ElementPath
+from aidial_interceptors_sdk.chat_completion.helpers import (
+    traverse_dict_value,
+    traverse_list,
+)
+from aidial_interceptors_sdk.utils.not_given import NotGiven
+
+
+class ResponseMessageHandler(ABC, BaseModel):
+    class Config:
+        arbitrary_types_allowed = True
+
+    async def on_response_stage(
+        self, path: ElementPath, stage: dict
+    ) -> List[dict] | dict:
+        return stage
+
+    async def on_response_stages(
+        self, path: ElementPath, stages: List[dict] | NotGiven | None
+    ) -> List[dict] | NotGiven | None:
+        return stages
+
+    async def on_response_attachment(
+        self, path: ElementPath, attachment: dict
+    ) -> List[dict] | dict:
+        """
+        Applied to individual attachments: every message and stage attachment
+        """
+
+        return attachment
+
+    async def on_response_attachments(
+        self, path: ElementPath, attachments: List[dict] | NotGiven | None
+    ) -> List[dict] | NotGiven | None:
+        """
+        Applied to list of attachments: message attachments and stage attachments
+        """
+        return attachments
+
+    async def on_response_state(
+        self, path: ElementPath, state: dict | NotGiven | None
+    ) -> dict | NotGiven | None:
+        return state
+
+    async def on_response_custom_content(
+        self, path: ElementPath, custom_content: dict | NotGiven | None
+    ) -> dict | NotGiven | None:
+        return custom_content
+
+    async def traverse_response_message(
+        self, path: ElementPath, message: dict
+    ) -> dict:
+
+        async def apply_on_attachments(
+            path: ElementPath, attachments: List[dict] | NotGiven | None
+        ) -> List[dict] | NotGiven | None:
+            attachments = await traverse_list(
+                path.with_attachment_idx,
+                attachments,
+                self.on_response_attachment,
+            )
+            return await self.on_response_attachments(path, attachments)
+
+        async def apply_on_stage(
+            path: ElementPath, stage: dict
+        ) -> List[dict] | dict:
+            stage = await traverse_dict_value(
+                path, stage, "attachments", apply_on_attachments
+            )
+
+            if path.stage_idx is not None and path.choice_ctx is not None:
+                mapper = path.choice_ctx.stage_index_mapper
+                stage["index"] = mapper(path.stage_idx)
+
+            return await self.on_response_stage(path, stage)
+
+        async def apply_on_stages(
+            path: ElementPath, stages: List[dict] | NotGiven | None
+        ) -> List[dict] | NotGiven | None:
+            stages = await traverse_list(
+                path.with_stage_idx, stages, apply_on_stage
+            )
+            return await self.on_response_stages(path, stages)
+
+        async def apply_on_custom_content(
+            path: ElementPath, cc: dict | NotGiven | None
+        ) -> dict | NotGiven | None:
+            cc = await traverse_dict_value(
+                path, cc, "state", self.on_response_state
+            )
+            cc = await traverse_dict_value(
+                path, cc, "attachments", apply_on_attachments
+            )
+            cc = await traverse_dict_value(path, cc, "stages", apply_on_stages)
+            return await self.on_response_custom_content(path, cc)
+
+        return await traverse_dict_value(
+            path, message, "custom_content", apply_on_custom_content
+        )