  We discuss a general framework for the evaluation of the gluonic form factors
in light hadrons at low momentum transfer, in the QCD instanton vacuum. At
medium resolution of the order of the inverse mean instanton size, the glue is
mostly localized in single or pair of pseudoparticles, and globally constrained
by the fluctuations of their topological charges. These pseudoparticles trap
light quarks, giving rise to emerging multiflavor 't Hooft interactions. We
explicitly evaluate the gluonic scalar, pseudoscalar, energy-momentum tensor
(EMT), and the leading C-odd and C-even three gluons hadronic form factors, at
next to leading order (NLO) in the instanton density, including molecular
clusters of like and unlike instantons. We use the results for the EMT to
address the contribution of the gluons in Ji$^\prime$s mass and spin sum rules,
at low resolution. When evolved, our results for the mass and spin composition
of the nucleon, are shown to be in good agreement with the recently reported
lattice results at higher resolution.
