Start with a clear request
“Prepare a ten-minute timer” is clearer than “remind me later”. A useful assistant should ask about missing details rather than guess a time, person or destination.
Check before confirming
Review the proposed action, the app it would open and the information it would receive. Declining should always be an option.
Finish in the right app
Opening a clock screen is not the same as starting a timer. Opening a calendar draft does not save an appointment. Check the result in the destination app.
Keep messages and calls personal
Check the recipient and every word before sending a message. A phone number should come from you or a contact you choose, never a guess about who “Mum” means. A message draft is not a sent message.
Choose access separately
Reading contacts or calendar entries needs separate consent and Android permission. Opening another app also brings that app’s own privacy and syncing rules into play.
No hidden continuation
The approach is to stop when handing you to another app, not silently continue a chain of tasks in the background. You should be able to see what happened and decide what comes next.