Thanks for reaching out!
Currently, the limit for the title of an activity or a routine is of 35 characters, and there is unfortunately no way to add a description of the activity.
However, it would be great if we could have a private chat about your specific needs in order to find together a solution to your needs. Would you mind sending us an email at email@example.com describing in details how such a description would look like for a specific task?
Your Brili Team