Based on feedback from the Teams Pilot program, you can now assign cards to space collaborators and group members by @mentioning them. @mentioned users will be notified (in-app or email).

Notes

To make room for listing @mentioned users, the card info showing date updatedAt and the user who created/updated the card was moved inside Card History. In the future this will also list historical changes to the card like (Sidebar → Space History)

2026-06-16 at 13.46.59@2x.

For API Users

Card.atUserMentions is an array of objects for each of the @mentions. Each mention object contains a stringMatch property like @my-friend that also needs to be present in the card name.

There’s currently no way to add @mentions through the API but this can be provided if there’s demand for it.