Here are the packages with brief descriptions (if available):

RAIN.Action
RAIN.Animation
RAIN.BehaviorTrees
RAIN.Belief
RAIN.Core
RAIN.GOB.GOBTree
RAIN.Minds
RAIN.Motion.Acceleration
RAIN.Motion.Instantaneous
RAIN.Ontology
RAIN.Path
RAIN.Path2
RAIN.Personality
RAIN.Primitives
RAIN.Sensors