The basic todo list plugin and a basic example plugin for anyone looking for an example. Lists are stored in reminders.json inside of the plugins folder.
Example:
"tell me my grocery list"
-> milk; eggs; chicken
"add potatoes to the grocery list"
-> added potatoes
"what is on my grocery list"
-> milk; eggs; chicken; potatoes
"check off chicken on grocery list"
-> check!
"grocery list"
-> milk; eggs; potatoes