  Partial top quark compositeness is a crucial aspect of theories with strong
electroweak symmetry breaking. Together with the heavy top partners that lift
the top quark mass to its observed value, these theories predict correlated
modifications of the top quark's electroweak couplings. Associated measurements
therefore provide direct constraints on the ultraviolet structure of the
underlying hypercolour dynamics. In this paper we employ a minimal version of
top compositeness to discuss how measurements related to the top's electroweak
gauge interactions can inform the potential composite nature of the TeV scale.
In doing so, we identify the dominant factors that limit the BSM sensitivity.
Extrapolating to a future 100 TeV hadron collider, we demonstrate that top
quark measurements performed at highest precision can provide complementary
information to resonance search by performing a representative resonant top
partner search that specifically targets the correlated resonant electroweak
top partner signatures.
