Wave extensions are a way to augment the functionality of waves
and the wave client. Currently, the Wave API supports the following
extensions:
Robots: Robots are applications which can be added to waves as
automated wave participants. Robot extensions commonly automate tasks, but
can also participate in the wave as a participant, interacting with the
conversation based on their capabilities. For more information, see the
Wave Robots API Overview
and Developer Guide.
Gadgets: Gadget extensions provide a shared program which
runs within the wave, and to which all participants have access. For more
information, see the Wave Gadgets API
Developer Guide.