Back in September 2020, Amazon announced that Alexa will soon be able to proactively act on Hunches without human interaction. Hunches is a feature which allows Alexa to learn from your habits and inform you if you had accidentally left your smart appliances on, among other things. Prior to today, human interaction would be required to act upon Hunches, but now, users will have the option of enabling Alexa to proactively handle Hunches without human intervention.
Amazon showcased the capability in a YouTube announcement video, which you can view below:
In a statement to Gizmodo, an Amazon spokesperson stated that proactive responses to Hunches are being constrained to smart lights, plugs, locks, and thermostats for now. It is natural to assume that the company will start rolling out the capability for more connected devices soon.
Hunches are based on Amazon's smart assistant learning usage patterns based on how users interact with it, like when they issue verbal commands to it in order to change the state of other connected devices.
On the other hand, if you are a manufacturer of smart electronics which offer integration with Alexa, you can sign up here to learn more about how to use Amazon's Alexa.AutomationManagement API, so that Alexa can proactively respond to Hunches about your device, once the capability is available.