You can now block / unblock a card in Kaiten without leaving slack.
In the quick action menu in the notification from the Kaiten bot, select the "Block" item. In the dialog that opens, enter the reason for blocking - our bot will block the card and send a message about successful blocking to the notification thread. (only text blocks are available at the moment).
If the card is already blocked, instead of the “Block” item in the quick action menu there will be the “Unblock” item, with its help you can unlock it in a few clicks.