Android Permissions

All you ever wanted to know about Android permissions

android.permission.WRITE_CONTACTS

modify your contacts
Allows the app to modify the data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific contacts. This permission allows apps to delete contact data.

Belongs to:

android.permission-group.SOCIAL_INFO

Your social information
Direct access to information about your contacts and social connections.