There are very few policies which apply across all Wikia. These can be found on the Central Wikia at Wikia:Category:Policy.
Other policies for this Wikia should be decided by the wiki community. It's generally best to keep policies as simple as possible, and not to introduce too many rules. A growing wiki can usually do well with a few simple policies and a lot of goodwill and cooperation. Because this wiki is designed to have its templates copied to hundreds or thousands of other Wikia sites, all creation and editing of templates should be done with care; policies may need to cover that.
Adding [[Category:Policy]] to any policy pages will add them to the policy category. If they are definitely agreed by community consensus, they can have {{Policy}} added.
See also Templates Wiki:Simplified ruleset