When coding JS in Pega, there would be an implicit variable named "tools".
There is also an implicit variable named "tools" when coding server-side java in Pega such as Functions or java steps within Activities.
The server-side "tools" object implements an interface named "PublicAPI". Launch the "Engine API" from Designer Studio (7) / Dev Studio (8) then search for "PublicAPI".
In java steps you often see statements such as tools.findPage("page") or tools.getStepPage().
The tools implicit variable provides a way to gain access to other java interfaces such as ClipboardPage and ClipboardProperty.