Summary of WG7 at CKM 2018: Mixing and $CP$ violation in the $D$ system: $x_D$, $y_D$, $|q/p|_D$, $phi_D$, and direct $CP$ violation in $D$ decays

The 10$^{rm th}$ International Workshop on the CKM Unitary Triangle took place at the University of Heidelberg on September 17$^{rm th}$-21$^{rm st}$, 2018. In this write-up, we summarize the material discussed at the workshop by the Working Group 7, which focused on latest experimental results and theoretical developments in the study of mixing and $CP$ violation in the neutral $D$ system, and of $CP$ violation and decay properties of other charm mesons and baryons.