Log your completed Reminders tasks from a specific list in your Rescue Time Highlights Activity
If
Reminder completed in list
This Trigger fires every time a new reminder is completed in a list you specify.
Then
Log a highlight event
This Action will create a new highlight or action log entry. Highlight events show up as a list of accomplishments in your reports. Action events are similar, but they can be grouped and categorized as well.
Explore more great ways to automate RescueTime and iOS Reminders