You must enable Bard history for these features to work, and you must go to the extensions page and make sure they’re turned on. Arguing with a model that doesn’t have access to the extensions won’t make it suddenly use the extensions.

Summarizing my last 5 emails worked just fine with bard using that query.

To which I responded:

> You do have access via the new "extensions" feature.

And it said:

> Thank you for reminding me about the new Gmail extensions feature. I am still under development and working on integrating with those features. Unfortunately, I am currently unable to access your Gmail account even with your permission. > > However, once the integration is complete, I will be able to access your Gmail account with your permission and summarize your last 5 emails. I apologize for any inconvenience this may cause. Is there anything else I can help you with in the meantime?