Dubbed QuickCarrot by iOS developer Julian Weiss, the tweak will allow you to configure an Activator action that you can invoke from anywhere to make a CARROT task that will be put into the application for you to finish, as shown above.
After installing the tweak, you can head over to the Activator preferences pane in the Settings application to configure the Activator action that you want to use to create CARROT tasks from anywhere:
Invoking the action you choose will bring up a text box where you can input the task you want to do. It will be sent to the application when you tap on the Create button.
If you would like to give QuickCarrot a try, it's available in Cydia's BigBoss repository for free. The CARROT application can be downloaded from the App Store for $1.99 via this App Store link if you don't already have it. The application must be installed to use the tweak.