"Alarms" app feedback

Here's what I got (hope I did it right):

>alarms
=[
  { on: true, hr: 13, last: 14, rp: true }
 ]
>require("Storage").readJSON("alarm.json")
=[
  { on: true, hr: 13, last: 14, rp: true }
 ]
>require("Storage").write("alarm.json",JSON.stringify([
:  { on: true, hr: 12, last: 14, rp: true },
:  { on: true, hr: 13, last: 14, rp: true }
: ]));
=true
>require("Storage").readJSON("alarm.json")
=[
  { on: true, hr: 13, last: 14, rp: true }
 ]
> 

As you can see, at this point I have an alarm at 13:00 that I cannot delete.