Migrate prompts Duo Chat identifier tools

config/feature_flags/experiment/prompt_migration_ci_editor_assistant.yml

+---
+name: prompt_migration_ci_editor_assistant
+feature_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/475051
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167401
+rollout_issue_url: https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/-/issues/595
+milestone: '17.6'
+group: group::custom models
+type: experiment
+default_enabled: false

config/feature_flags/experiment/prompt_migration_epic_reader.yml

+---
+name: prompt_migration_epic_reader
+feature_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/475052
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167401
+rollout_issue_url: https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/-/issues/595
+milestone: '17.6'
+group: group::custom models
+type: experiment
+default_enabled: false

config/feature_flags/experiment/prompt_migration_issue_reader.yml

+---
+name: prompt_migration_issue_reader
+feature_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/475053
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167401
+rollout_issue_url: https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/-/issues/595
+milestone: '17.6'
+group: group::custom models
+type: experiment
+default_enabled: false

ee/lib/gitlab/llm/chain/tools/ci_editor_assistant/executor.rb

@@ -7,6 +7,7 @@ module Tools
         module CiEditorAssistant
           class Executor < Tool
             include Concerns::AiDependent
+            prepend Concerns::UseAiGatewayAgentPrompt
             NAME = 'CiEditorAssistant'
             HUMAN_NAME = 'CI Assistant'

ee/lib/gitlab/llm/chain/tools/epic_reader/executor.rb

@@ -7,6 +7,7 @@ module Tools
         module EpicReader
           class Executor < Identifier
             include Concerns::ReaderTooling
+            prepend Concerns::UseAiGatewayAgentPrompt
             RESOURCE_NAME = 'epic'
             NAME = 'EpicReader'

ee/lib/gitlab/llm/chain/tools/issue_reader/executor.rb

@@ -7,6 +7,7 @@ module Tools
         module IssueReader
           class Executor < Identifier
             include Concerns::ReaderTooling
+            prepend Concerns::UseAiGatewayAgentPrompt
             RESOURCE_NAME = 'issue'
             NAME = "IssueReader"

ee/spec/lib/gitlab/llm/chain/concerns/ai_dependent_spec.rb

@@ -77,24 +77,24 @@ def provider_prompt_class
   end
   describe '#request' do
+    let(:tool) { ::Gitlab::Llm::Chain::Tools::IssueReader::Executor.new(context: context, options: options) }
+    let(:prompt_options) { tool.prompt.deep_merge({ options: { inputs: options, use_ai_gateway_agent_prompt: true } }) }
+
     before do
       allow(Gitlab::Llm::Logger).to receive(:build).and_return(logger)
       allow(logger).to receive(:conditional_info)
     end
     it 'passes prompt and unit primitive to the ai_client' do
-      tool = ::Gitlab::Llm::Chain::Tools::IssueReader::Executor.new(context: context, options: options)
-
-      expect(ai_request).to receive(:request).with(tool.prompt, unit_primitive: nil)
+      expect(ai_request).to receive(:request).with(prompt_options, unit_primitive: 'issue_reader')
       tool.request
     end
     it 'passes blocks forward to the ai_client' do
       b = proc { "something" }
-      tool = ::Gitlab::Llm::Chain::Tools::IssueReader::Executor.new(context: context, options: options)
-      expect(ai_request).to receive(:request).with(tool.prompt, unit_primitive: nil, &b)
+      expect(ai_request).to receive(:request).with(prompt_options, unit_primitive: 'issue_reader', &b)
       tool.request(&b)
     end
@@ -136,7 +136,6 @@ def prompt_options
     end
     it 'logs the request', quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/463465' do
-      tool = ::Gitlab::Llm::Chain::Tools::IssueReader::Executor.new(context: context, options: options)
       expected_prompt = tool.prompt[:prompt]
       tool.request
@@ -144,5 +143,17 @@ def prompt_options
       expect(logger).to have_received(:conditional_info).with(context.current_user, a_hash_including(
         message: "Content of the prompt from chat request", klass: tool.class.to_s, prompt: expected_prompt))
     end
+
+    context 'when prompt_migration_issue_reader feature flag is disabled' do
+      before do
+        stub_feature_flags(prompt_migration_issue_reader: false)
+      end
+
+      it 'does not send params to use ai gateway prompt' do
+        expect(ai_request).to receive(:request).with(tool.prompt, unit_primitive: nil)
+
+        tool.request
+      end
+    end
   end
 end

ee/spec/lib/gitlab/llm/chain/tools/ci_editor_assistant/executor_spec.rb

@@ -68,6 +68,11 @@
           expect(answer.error_code).to include("M4002")
         end
       end
+
+      it_behaves_like 'uses ai gateway agent prompt' do
+        let(:prompt_class) { Gitlab::Llm::Chain::Tools::CiEditorAssistant::Prompts::Anthropic }
+        let(:unit_primitive) { 'ci_editor_assistant' }
+      end
     end
     context 'when code tool was already used' do

ee/spec/lib/gitlab/llm/chain/tools/epic_reader/executor_spec.rb

@@ -68,12 +68,15 @@
     context 'when epic is identified' do
       let_it_be(:epic1) { create(:epic, group: group) }
       let_it_be(:epic2) { create(:epic, group: group) }
+
+      let(:ai_request_double) { instance_double(Gitlab::Llm::Chain::Requests::AiGateway) }
+
       let(:context) do
         Gitlab::Llm::Chain::GitlabContext.new(
           container: group,
           resource: epic1,
           current_user: user,
-          ai_request: double
+          ai_request: ai_request_double
         )
       end
@@ -309,6 +312,11 @@
             end
           end
         end
+
+        it_behaves_like 'uses ai gateway agent prompt' do
+          let(:prompt_class) { Gitlab::Llm::Chain::Tools::EpicReader::Prompts::Anthropic }
+          let(:unit_primitive) { 'epic_reader' }
+        end
       end
       describe '#get_resources' do

ee/spec/lib/gitlab/llm/chain/tools/issue_reader/executor_spec.rb

@@ -69,12 +69,15 @@
     context 'when issue is identified' do
       let_it_be(:issue1) { create(:issue, project: project) }
       let_it_be(:issue2) { create(:issue, project: project) }
+
+      let(:ai_request_double) { instance_double(Gitlab::Llm::Chain::Requests::AiGateway) }
+
       let(:context) do
         Gitlab::Llm::Chain::GitlabContext.new(
           container: project,
           resource: issue1,
           current_user: user,
-          ai_request: double
+          ai_request: ai_request_double
         )
       end
@@ -291,6 +294,11 @@
             expect(tool.execute.content).to eq(response)
           end
         end
+
+        it_behaves_like 'uses ai gateway agent prompt' do
+          let(:prompt_class) { Gitlab::Llm::Chain::Tools::IssueReader::Prompts::Anthropic }
+          let(:unit_primitive) { 'issue_reader' }
+        end
       end
     end
   end