Additional diagnostics of localized electron energization. Left: temporal evolution of the spatially averaged agyrotropy measure ﹩\langle \sqrt{Q}\rangle ﹩ for electrons and ions in the US and LS layers. Right: Pearson (r) and Spearman (ρ) correlation coefficients between coarse-grained ﹩\mathrm{log}| {J}_{z,e}| ﹩ and T_∥,e/T_∥,e,0 in the same regions. Vertical dashed lines mark the transitions between KHI stages.