  We develop in detail the holographic framework for an $\mathcal{N}=2$ pure
AdS supergravity model in four dimensions, including all the contributions from
the fermionic fields and adopting the Fefferman-Graham parametrization. We work
in the first order formalism, where the full superconformal structure can be
kept manifest in principle, even if only a part of it is realized as a symmetry
on the boundary, while the remainder has a non-linear realization. Our study
generalizes the results presented in antecedent literature and includes a
general discussion of the gauge-fixing conditions on the bulk fields which
yield the asymptotic symmetries at the boundary. We construct the corresponding
superconformal currents and show that they satisfy the related Ward identities
when the bulk equations of motion are imposed.
  Consistency of the holographic setup requires the super-AdS curvatures to
vanish at the boundary. This determines, in particular, the expression of the
super-Schouten tensor of the boundary theory, which generalizes the purely
bosonic Schouten tensor of standard gravity by including gravitini bilinears.
The same applies to the superpartner of the super-Schouten tensor, the
conformino. Furthermore, the vanishing of the supertorsion poses general
constraints on the sources of the three-dimensional boundary conformal field
theory and requires that the super-Schouten tensor is endowed with an
antisymmetric part proportional to a gravitino-squared term.
