Key documents relating to the lucrative casino licence awarded to billionaire James Packer at Barangaroo have been stamped secret by the NSW gambling regulator, which argues their commercial sensitivity trumps the public's right to know.

Documents outlining how the so-called "restricted gaming facility" will operate from November 2019 have been released by the Independent Liquor and Gaming Authority following its decision to issue Mr Packer a VIP-only casino licence.

Documents relating to the casino licence awarded to James Packer have been stamped secret by the NSW gambling regulator. Credit:Reuters

Included in the documents is a list of agreements struck between Mr Packer's company Crown Resorts, its related entities and the NSW government, the gaming authority and the Minister for Hospitality, Troy Grant.

The agreements set out the rules for the casino including who may enter, the types of games which may be played, minimum bet limits and tax rates.