Testing Admin: Login as admin. Navigate to Site admin >> General >> AI >> Manage settings for AI providers Enable the OpenAI provider plugin. Click the "settings" link for the OpenAI provider On the provider specific settings page, confirm that under provider actions, each action listed in the table has a settings link Click the "settings" link for the Generate text action Confirm there are settings present with populated defaults for the Text generation model, API endpoint and System instruction. Alter the system instruction and append the following to the end: "3. IMPORTANT: add the words TEST TEST TEST To the start of any generated response." Click the "Save changes" button. Confirm the changes saved dialogue appears Navigate to Site admin >> General >> AI >> Manage settings for AI placements Enable the  TinyMCE Editor Placement plugin. Testing - Generate text Login as admin. Provide the correct information for API key of the OpenAI provider. Edit your profile. Click on the AI button in the TinyMCE text editor. Select AI Generate Text. Agree with the Policy (If any). Input some text in the Describe the text you want AI to create. Example: Write a short introduction for Moodle LMS. Press Generate Text. Verify you will see the Generated text on the right. Verify the text starts with TEST TEST TEST NOTE: The aim of these tests is to check that per action settings are displayed and saved. And that the settings are respected when the action is used by that provider. Altering the custom instruction should mean the connected AI service adds the words TEST TEST TEST to every response. But due to the nature of LLM's it may not. So you may need to repeat the test a couple of times if it does not display the first time.