  In recent times, SMEFT, along with a superlative repertoire of theoretical
and computational tools, has emerged as an efficacious platform to test the
viability of proposed BSM scenarios. With symmetry as the backbone, higher mass
dimensional ($\geq 5$) SMEFT operators constitute the \textit{lingua franca}
for studying and comparing the direct or indirect effects of UV models on low
energy observables. The steady increase in the accessible energy scales for
contemporary particle collision experiments prompts us to inspect effective
operators beyond the leading order and investigate their measurable impact as
well as their connections with the appropriate BSM proposals. We take the next
step in delineating the possible UV roots of SMEFT operators by extending our
diagrammatic approach, previously employed for CP, baryon, and lepton number
conserving dimension-6 operators, to the complete set of purely bosonic SMEFT
operators up to mass dimension-8. We catalogue a diverse array of Feynman
diagrams elucidating how the operators encapsulate heavy field propagators
while abiding by a notion of minimalism.
