diff --git a/gns3server/agent/gns3_copilot/__init__.py b/gns3server/agent/gns3_copilot/__init__.py
index f6aa26a80..ecbb76ca1 100644
--- a/gns3server/agent/gns3_copilot/__init__.py
+++ b/gns3server/agent/gns3_copilot/__init__.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/agent/__init__.py b/gns3server/agent/gns3_copilot/agent/__init__.py
index eb06974df..57c67d8e8 100644
--- a/gns3server/agent/gns3_copilot/agent/__init__.py
+++ b/gns3server/agent/gns3_copilot/agent/__init__.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/agent/context_manager.py b/gns3server/agent/gns3_copilot/agent/context_manager.py
index 25244429e..1e8cc988f 100644
--- a/gns3server/agent/gns3_copilot/agent/context_manager.py
+++ b/gns3server/agent/gns3_copilot/agent/context_manager.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/agent/gns3_copilot.py b/gns3server/agent/gns3_copilot/agent/gns3_copilot.py
index 7679768db..06999db1e 100644
--- a/gns3server/agent/gns3_copilot/agent/gns3_copilot.py
+++ b/gns3server/agent/gns3_copilot/agent/gns3_copilot.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/agent/model_factory.py b/gns3server/agent/gns3_copilot/agent/model_factory.py
index 3d7ec022d..3b7460775 100644
--- a/gns3server/agent/gns3_copilot/agent/model_factory.py
+++ b/gns3server/agent/gns3_copilot/agent/model_factory.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/agent_service.py b/gns3server/agent/gns3_copilot/agent_service.py
index 59ddbcc9c..a46d79bca 100644
--- a/gns3server/agent/gns3_copilot/agent_service.py
+++ b/gns3server/agent/gns3_copilot/agent_service.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/chat_sessions_repository.py b/gns3server/agent/gns3_copilot/chat_sessions_repository.py
index 191bab228..5fca1f0a7 100644
--- a/gns3server/agent/gns3_copilot/chat_sessions_repository.py
+++ b/gns3server/agent/gns3_copilot/chat_sessions_repository.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/gns3_client/__init__.py b/gns3server/agent/gns3_copilot/gns3_client/__init__.py
index ef15bb76a..b515dcc81 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/__init__.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/__init__.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py b/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
index 44bdb2c39..1c81527fd 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/connector_factory.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/gns3_client/custom_gns3fy.py b/gns3server/agent/gns3_copilot/gns3_client/custom_gns3fy.py
index aa7203c2a..0dd347a69 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/custom_gns3fy.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/custom_gns3fy.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/gns3_client/gns3_project_info.py b/gns3server/agent/gns3_copilot/gns3_client/gns3_project_info.py
index b6f150c0f..f5707b43c 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/gns3_project_info.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/gns3_project_info.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py b/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py
index 71e914623..6d6fb427a 100644
--- a/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py
+++ b/gns3server/agent/gns3_copilot/gns3_client/gns3_topology_reader.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/project_agent_manager.py b/gns3server/agent/gns3_copilot/project_agent_manager.py
index 9d91ec9a6..551481642 100644
--- a/gns3server/agent/gns3_copilot/project_agent_manager.py
+++ b/gns3server/agent/gns3_copilot/project_agent_manager.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/prompts/__init__.py b/gns3server/agent/gns3_copilot/prompts/__init__.py
index 3deef6c0c..6aa0e2a23 100644
--- a/gns3server/agent/gns3_copilot/prompts/__init__.py
+++ b/gns3server/agent/gns3_copilot/prompts/__init__.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/prompts/base_prompt.py b/gns3server/agent/gns3_copilot/prompts/base_prompt.py
index d1c331820..d0c16b8b2 100644
--- a/gns3server/agent/gns3_copilot/prompts/base_prompt.py
+++ b/gns3server/agent/gns3_copilot/prompts/base_prompt.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/prompts/prompt_loader.py b/gns3server/agent/gns3_copilot/prompts/prompt_loader.py
index 40483e2f2..ed9397987 100644
--- a/gns3server/agent/gns3_copilot/prompts/prompt_loader.py
+++ b/gns3server/agent/gns3_copilot/prompts/prompt_loader.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/prompts/title_prompt.py b/gns3server/agent/gns3_copilot/prompts/title_prompt.py
index 62a1b8b58..9192cca1c 100644
--- a/gns3server/agent/gns3_copilot/prompts/title_prompt.py
+++ b/gns3server/agent/gns3_copilot/prompts/title_prompt.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 
diff --git a/gns3server/agent/gns3_copilot/tools_v2/__init__.py b/gns3server/agent/gns3_copilot/tools_v2/__init__.py
index 77adbfa82..5b5765973 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/__init__.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/__init__.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py b/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py
index 601d7c11f..11f410c85 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/config_tools_nornir.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py b/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py
index 0fffe95ed..baa4dbd83 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/display_tools_nornir.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py
index e7d17ed01..707906d2a 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_link.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py
index 2c380ae03..b6bfceb4e 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_create_node.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py
index 6c51dea97..a4cd48594 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_get_node_temp.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py
index fde9c16dc..1c397c4a8 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_start_node.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py b/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py
index fb760358f..380d4516b 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/gns3_update_node_name.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py b/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py
index c17f2957a..c5d36ada7 100644
--- a/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py
+++ b/gns3server/agent/gns3_copilot/tools_v2/vpcs_tools_telnetlib3.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/utils/__init__.py b/gns3server/agent/gns3_copilot/utils/__init__.py
index d9863449b..b11390aae 100644
--- a/gns3server/agent/gns3_copilot/utils/__init__.py
+++ b/gns3server/agent/gns3_copilot/utils/__init__.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py b/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py
index a6873be75..713d14625 100644
--- a/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py
+++ b/gns3server/agent/gns3_copilot/utils/get_gns3_device_port.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/utils/gns3_drawing_utils.py b/gns3server/agent/gns3_copilot/utils/gns3_drawing_utils.py
index 005888f90..d73cd8ca4 100644
--- a/gns3server/agent/gns3_copilot/utils/gns3_drawing_utils.py
+++ b/gns3server/agent/gns3_copilot/utils/gns3_drawing_utils.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/utils/llm_config_helper.py b/gns3server/agent/gns3_copilot/utils/llm_config_helper.py
index fee056cce..34a6077b1 100644
--- a/gns3server/agent/gns3_copilot/utils/llm_config_helper.py
+++ b/gns3server/agent/gns3_copilot/utils/llm_config_helper.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """
diff --git a/gns3server/agent/gns3_copilot/utils/message_converters.py b/gns3server/agent/gns3_copilot/utils/message_converters.py
index 6ec5e7350..b52ec5d3f 100644
--- a/gns3server/agent/gns3_copilot/utils/message_converters.py
+++ b/gns3server/agent/gns3_copilot/utils/message_converters.py
@@ -1,19 +1,27 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
-# This file is part of GNS3 Server.
+# GNS3-Copilot - AI-powered Network Lab Assistant for GNS3
 #
-# GNS3 Server is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
+# This file is part of GNS3-Copilot project.
+#
+# GNS3-Copilot is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# GNS3-Copilot is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+# for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
+#
+# Project Home: https://github.com/yueguobin/gns3-copilot
+#
 
 """
 
diff --git a/gns3server/agent/gns3_copilot/utils/parse_tool_content.py b/gns3server/agent/gns3_copilot/utils/parse_tool_content.py
index 541de35c6..554bebaac 100644
--- a/gns3server/agent/gns3_copilot/utils/parse_tool_content.py
+++ b/gns3server/agent/gns3_copilot/utils/parse_tool_content.py
@@ -17,6 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with GNS3-Copilot. If not, see <https://www.gnu.org/licenses/>.
 #
+# Copyright (C) 2025 Guobin Yue
+# Author: Guobin Yue
+#
 # Project Home: https://github.com/yueguobin/gns3-copilot
 #
 """