  The JETSCAPE framework is a modular and versatile Monte Carlo software
package for the simulation of high energy nuclear collisions. In this work we
present a new tune of JETSCAPE, called PP19, and validate it by comparison to
jet-based measurements in $p+p$ collisions, including inclusive single jet
cross sections, jet shape observables, fragmentation functions, charged hadron
cross sections, and dijet mass cross sections. These observables in $p+p$
collisions provide the baseline for their counterparts in nuclear collisions.
Quantifying the level of agreement of JETSCAPE results with $p+p$ data is thus
necessary for meaningful applications of JETSCAPE to A+A collisions. The
calculations use the JETSCAPE PP19 tune, defined in this paper, based on
version 1.0 of the JETSCAPE framework. For the observables discussed in this
work calculations using JETSCAPE PP19 agree with data over a wide range of
collision energies at a level comparable to standard Monte Carlo codes. These
results demonstrate the physics capabilities of the JETSCAPE framework and
provide benchmarks for JETSCAPE users.
