It doesn’t appear that it is possible to list the repositories assigned to a team. This seems like it should be available.
that sounds quite reasonable @alecxvs. I’ve added this schema request to our internal issue tracker. We’ll leave a note here when we have something more to share.
I wanted to let you know that the capability to list a team’s repositories was recently added to the schema. You can find out more about the connection in the documentation: https://developer.github.com/v4/reference/object/team/#connections