If you edit a Search card, you will see the WQL behind that search. Currently all searches are created by writing WQL by hand. Soon, though, you'll be able to create these searches with a graphical editor. Meanwhile, the good news is that it's simple enough for even non-programmers to do at least simple searches.
See WQL syntax for more information.
(Note for developers: in Search cards, WQL is expressed in JSON, but in the code, it can be expressed in Ruby.)
See WQL syntax for more information.
(Note for developers: in Search cards, WQL is expressed in JSON, but in the code, it can be expressed in Ruby.)

