This manual describes DrRacket’s plugins interface. It assumes familiarity with Racket, as described in the The Racket Guide, and the The Racket Reference, DrRacket, as described in DrRacket: The Racket Programming Environment, and the GUI library, as described in The Racket Graphical Interface Toolkit. The Framework, as described in Framework: Racket GUI Application Framework, may also come in handy.
Thanks to PLT and the early adopters of the tools interface for their feedback and help.
A special thanks to Eli Barzilay, John Clements, Matthias Felleisen, Cormac Flanagan, Matthew Flatt, Max Hailperin, Philippe Meunier, and Christian Queinnec for their help being early clients for DrRacket plugins.