Prayer: Does adding or skipping parts of the Eid qunūt invalidate the prayer?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Does adding or skipping parts of the Eid qunūt invalidate the prayer?

English:

Question #632:

Does any increase or decrease in the qunūt of ‘īd prayers make them invalid?

Answer #632:

Prayers are not invalidated by this if the meaning of increase or decrease is to elongate or shorten the qunūt itself. While if it means increases or decrease in the number of the qunūts, one should offer the ‘īd prayer as it is mentioned within the books of jurisprudence.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer