diff --git a/doc/development/ai_features/_index.md b/doc/development/ai_features/_index.md
index e88186d0c1a32ef390fafe9ed2bdd105faa30d0b..50b1b62430bf0c713ada7a33af60590b1c0b3f0c 100644
--- a/doc/development/ai_features/_index.md
+++ b/doc/development/ai_features/_index.md
@@ -70,6 +70,10 @@ After following the steps in the [setup](https://gitlab.com/gitlab-org/gitlab-de
 
 ### Run `gitlab:duo:setup` script
 
+Note: this task is idempotent and skips reseeding if the `gitlab-duo` group
+already exists. To force reseeding from this task, set `GITLAB_DUO_RESEED=1`.
+For details on the seeds used, see [Development seed files](../development_seed_files.md#seed-project-and-group-resources-for-gitlab-duo).
+
 This ensures that your instance or group has the correct licenses, settings, and feature flags to test Duo features locally. Below are several options. If you are unsure, use option 1.
 
 1. GitLab.com (SaaS) mode
diff --git a/doc/development/development_seed_files.md b/doc/development/development_seed_files.md
index cc17ab3755a3559925ec3e799a5396d0b7ee3752..2ca50572571bb555f378e956ee7a9d4c4987e847 100644
--- a/doc/development/development_seed_files.md
+++ b/doc/development/development_seed_files.md
@@ -30,9 +30,9 @@ data for features.
 
 ### Seed project and group resources for GitLab Duo
 
-The [`gitlab:duo:setup` setup script](ai_features/_index.md#run-gitlabduosetup-script) will execute
-the development seed file for GitLab Duo project and group resources.
-However, if you would like to re-create the resources, you can re-run the seed task using the command:
+The [`gitlab:duo:setup` setup script](ai_features/_index.md#run-gitlabduosetup-script) executes the development seed file for GitLab Duo project and group resources. In self-managed mode, the task is idempotent and skips reseeding if the `gitlab-duo` group already exists. To force reseeding from the setup task, set `GITLAB_DUO_RESEED=1`.
+
+To run the seed directly (outside the setup task) and recreate all resources:
 
 ```shell
 SEED_GITLAB_DUO=1 FILTER=gitlab_duo bundle exec rake db:seed_fu
diff --git a/ee/lib/gitlab/duo/developments/setup.rb b/ee/lib/gitlab/duo/developments/setup.rb
index 77f46998bd543db9c273ef384a2c3579f88c06ed..0a276e6735cadaf47dc2426e8fb0216f2fc470a9 100644
--- a/ee/lib/gitlab/duo/developments/setup.rb
+++ b/ee/lib/gitlab/duo/developments/setup.rb
@@ -5,12 +5,15 @@ module Gitlab
   module Duo
     module Developments
       def self.seed_data(namespace)
-        if Group.find_by_full_path(namespace)
+        return if namespace.blank?
+
+        if Group.find_by_full_path(namespace) && !::Gitlab::Utils.to_boolean(ENV['GITLAB_DUO_RESEED'])
           puts <<~TXT.strip
           ================================================================================
           ## Gitlab Duo test group and project already seeded
           ## If you want to destroy and re-create them, you can re-run the seed task
           ## SEED_GITLAB_DUO=1 FILTER=gitlab_duo bundle exec rake db:seed_fu
+          ## Or set GITLAB_DUO_RESEED=1 to force reseeding via this setup task
           ## See https://docs.gitlab.com/development/development_seed_files/#seed-project-and-group-resources-for-gitlab-duo
           ================================================================================
           TXT
@@ -19,6 +22,7 @@ def self.seed_data(namespace)
           puts "Seeding GitLab Duo data..."
           ENV['FILTER'] = 'gitlab_duo'
           ENV['SEED_GITLAB_DUO'] = '1'
+          Rake::Task['db:seed_fu'].reenable
           Rake::Task['db:seed_fu'].invoke
         end
       end
@@ -195,7 +199,7 @@ def execute
           setup_strategy = if ::Gitlab::Utils.to_boolean(ENV['GITLAB_SIMULATE_SAAS'])
                              GitlabComStrategy.new(@namespace, @args)
                            else
-                             SelfManagedStrategy.new(nil, @args)
+                             SelfManagedStrategy.new(@namespace, @args)
                            end
 
           ensure_dev_mode!
diff --git a/ee/spec/lib/gitlab/duo/developments/setup_spec.rb b/ee/spec/lib/gitlab/duo/developments/setup_spec.rb
index 354ae358549e309a2ae9f88e84ed6a5b23950716..a33f089595c5e7ca429f25c75325c9f898398360 100644
--- a/ee/spec/lib/gitlab/duo/developments/setup_spec.rb
+++ b/ee/spec/lib/gitlab/duo/developments/setup_spec.rb
@@ -10,6 +10,7 @@
   let!(:user) { create(:user, maintainer_of: project, username: 'root') }
 
   let(:task) { described_class.new(args) }
+  let(:namespace) { 'gitlab-duo' }
 
   let(:feature_flags) do
     [
@@ -187,26 +188,32 @@
     before do
       allow(Rake::Task).to receive(:[]).with(any_args).and_return(rake_task)
       allow(rake_task).to receive(:invoke)
+      allow(rake_task).to receive(:reenable)
       allow($stdout).to receive(:puts)
     end
 
     context 'when Gitlab Duo data is not seeded' do
+      before do
+        allow(Group).to receive(:find_by_full_path).with(namespace).and_return(nil)
+      end
+
       it 'prints a message indicating seeding is happening' do
         expect($stdout).to receive(:puts).with('Seeding GitLab Duo data...')
 
-        ::Gitlab::Duo::Developments.seed_data(nil)
+        ::Gitlab::Duo::Developments.seed_data(namespace)
       end
 
-      it 'invokes the db:seed_fu rake task' do
-        ::Gitlab::Duo::Developments.seed_data(nil)
+      it 'reenables and invokes the db:seed_fu rake task' do
+        ::Gitlab::Duo::Developments.seed_data(namespace)
 
+        expect(rake_task).to have_received(:reenable)
         expect(rake_task).to have_received(:invoke)
       end
     end
 
     context 'when Gitlab Duo data is already seeded' do
       before do
-        allow(Group).to receive(:find_by_full_path).with(nil).and_return(group)
+        allow(Group).to receive(:find_by_full_path).with(namespace).and_return(group)
       end
 
       let(:expected_already_seeded_message) do
@@ -215,21 +222,29 @@
           ## Gitlab Duo test group and project already seeded
           ## If you want to destroy and re-create them, you can re-run the seed task
           ## SEED_GITLAB_DUO=1 FILTER=gitlab_duo bundle exec rake db:seed_fu
+          ## Or set GITLAB_DUO_RESEED=1 to force reseeding via this setup task
           ## See https://docs.gitlab.com/development/development_seed_files/#seed-project-and-group-resources-for-gitlab-duo
           ================================================================================
         TXT
       end
 
-      it 'prints a message indicating data is already seeded' do
+      it 'prints a message indicating data is already seeded and does not run seeds' do
         expect($stdout).to receive(:puts).with(expected_already_seeded_message)
 
-        ::Gitlab::Duo::Developments.seed_data(nil)
+        ::Gitlab::Duo::Developments.seed_data(namespace)
+
+        expect(rake_task).not_to have_received(:invoke)
       end
 
-      it 'does not invoke the db:seed_fu rake task' do
-        ::Gitlab::Duo::Developments.seed_data(nil)
+      context 'when GITLAB_DUO_RESEED=1 is set' do
+        it 'forces reseeding' do
+          stub_env('GITLAB_DUO_RESEED', '1')
 
-        expect(rake_task).not_to have_received(:invoke)
+          ::Gitlab::Duo::Developments.seed_data(namespace)
+
+          expect(rake_task).to have_received(:reenable)
+          expect(rake_task).to have_received(:invoke)
+        end
       end
     end
   end