  We discuss a new interaction for chiral models in four-dimensional ${\cal
N}=1$ supergavity. It contains a new arbitrary function in addition to the
K\"ahler potential and superpotential. Its features include linearly realized
off-shell supersymmetry, K\"ahler-Weyl invariance and broken supersymmetry. The
corresponding scalar potential is augmented by the arbitrary function which
allows freedom in constructing low-energy phenomenological models and
inflationary models rooted in supergravity.
