diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index d641d1b..9749e57 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -22,9 +22,7 @@ jobs:
     steps:
       - name: Persist Secrets to Agent Environment
         run: |
-          echo "OPENAI_API_KEY=${{ secrets.OPENAI_API_KEY }}" >> $GITHUB_ENV
-          echo "TESTS_MQTT_BROKER_HOST=localhost" >> $GITHUB_ENV
-          echo "TESTS_MQTT_BROKER_PORT=1883" >> $GITHUB_ENV
+          echo "OPENAI_API_KEY=${{ secrets.OPENAI_API_KEY }}" >> .env.llm-tests
 
       - name: Checkout code
         uses: actions/checkout@v6