* [`size`](https://help.github.com/articles/searching-repositories#search-based-on-the-size-of-a-repository)

Finds repositories that match a certain size (in kilobytes).

* [`forks`](https://help.github.com/articles/searching-repositories#search-based-on-the-number-of-forks-the-parent-repository-has)

* [`fork`](https://help.github.com/articles/searching-repositories#search-based-on-the-number-of-forks-the-parent-repository-has) Filters whether forked repositories should be included (`true`) or only forked repositories should be returned (`only`).

* [`created` or `pushed`](https://help.github.com/articles/searching-repositories#search-based-on-when-a-repository-was-created-or-last-updated)

Filters repositories based on date of creation, or when they were last updated.