diff --git a/google-cloud-ces-v1beta/lib/google/cloud/ces/v1beta/agent_tool_pb.rb b/google-cloud-ces-v1beta/lib/google/cloud/ces/v1beta/agent_tool_pb.rb
index 3d637ee2e9cf..c50675db0011 100644
--- a/google-cloud-ces-v1beta/lib/google/cloud/ces/v1beta/agent_tool_pb.rb
+++ b/google-cloud-ces-v1beta/lib/google/cloud/ces/v1beta/agent_tool_pb.rb
@@ -8,7 +8,7 @@
 require 'google/api/resource_pb'
 
 
-descriptor_data = "\n(google/cloud/ces/v1beta/agent_tool.proto\x12\x17google.cloud.ces.v1beta\x1a\x1fgoogle/api/field_behavior.proto\x1a\x19google/api/resource.proto\"\xa1\x01\n\tAgentTool\x12\x11\n\x04name\x18\x01 \x01(\tB\x03\xe0\x41\x02\x12\x18\n\x0b\x64\x65scription\x18\x02 \x01(\tB\x03\xe0\x41\x01\x12\x36\n\nroot_agent\x18\x03 \x01(\tB\"\x18\x01\xe0\x41\x01\xfa\x41\x1a\n\x18\x63\x65s.googleapis.com/Agent\x12/\n\x05\x61gent\x18\x04 \x01(\tB \xe0\x41\x01\xfa\x41\x1a\n\x18\x63\x65s.googleapis.com/AgentB^\n\x1b\x63om.google.cloud.ces.v1betaB\x0e\x41gentToolProtoP\x01Z-cloud.google.com/go/ces/apiv1beta/cespb;cespbb\x06proto3"
+descriptor_data = "\n(google/cloud/ces/v1beta/agent_tool.proto\x12\x17google.cloud.ces.v1beta\x1a\x1fgoogle/api/field_behavior.proto\x1a\x19google/api/resource.proto\"i\n\tAgentTool\x12\x11\n\x04name\x18\x01 \x01(\tB\x03\xe0\x41\x02\x12\x18\n\x0b\x64\x65scription\x18\x02 \x01(\tB\x03\xe0\x41\x01\x12/\n\x05\x61gent\x18\x04 \x01(\tB \xe0\x41\x01\xfa\x41\x1a\n\x18\x63\x65s.googleapis.com/AgentB^\n\x1b\x63om.google.cloud.ces.v1betaB\x0e\x41gentToolProtoP\x01Z-cloud.google.com/go/ces/apiv1beta/cespb;cespbb\x06proto3"
 
 pool = ::Google::Protobuf::DescriptorPool.generated_pool
 pool.add_serialized_file(descriptor_data)
diff --git a/google-cloud-ces-v1beta/proto_docs/google/cloud/ces/v1beta/agent_tool.rb b/google-cloud-ces-v1beta/proto_docs/google/cloud/ces/v1beta/agent_tool.rb
index 862c7b0e038f..86d4fd8e3825 100644
--- a/google-cloud-ces-v1beta/proto_docs/google/cloud/ces/v1beta/agent_tool.rb
+++ b/google-cloud-ces-v1beta/proto_docs/google/cloud/ces/v1beta/agent_tool.rb
@@ -28,12 +28,6 @@ module V1beta
         # @!attribute [rw] description
         #   @return [::String]
         #     Optional. Description of the tool's purpose.
-        # @!attribute [rw] root_agent
-        #   @deprecated This field is deprecated and may be removed in the next major version update.
-        #   @return [::String]
-        #     Optional. Deprecated: Use `agent` instead.
-        #     The resource name of the root agent that is the entry point of the tool.
-        #     Format: `projects/{project}/locations/{location}/agents/{agent}`
         # @!attribute [rw] agent
         #   @return [::String]
         #     Optional. The resource name of the agent that is the entry point of the