New physics beyond the Standard Model (SM) is needed to address open
questions within the SM or to explain tensions between SM predictions
and experimental data. Any new physics model, however, generally also
affects the predictions of a large number of well-measured observables
that must be taken into account as constraints.
In this talk I will discuss how the SM Effective Field Theory (SMEFT)
can be used to simplify the phenomenology of new physics models and how
to constrain them in an automated way. I will present an implementation
of this method using the public open source physics codes flavio,
wilson, and smelli.