The Ponsonby teen was charged after he stabbed Tipene, 17, with a broken bottle during a street fight in the early hours of November 1, 2014.
A Corrections spokesperson said Skeen's safety in prison was of utmost importance.
"Safety is Corrections' bottom line and we work to ensure every prisoner is placed in a safe environment.
"We will not tolerate prisoners using violence. A prisoner responsible for violent behaviour will be held to account for their actions.
"Prisoners who are assessed as being at risk of violence or intimidation from other prisoners may be placed on segregation, and managed separately from the general prison population."
High-profile Canterbury University criminologist Greg Newbold said the threat against Skeen should be taken seriously.
"It is pretty bloodcurdling and he will know about it, prison intelligence will tell him about the threat."