Normalised redshift distribution of the N_TP (filled blue histogram), N_FP (dashed red histogram), and N_FN (dot-dashed green histogram) for the Euclid-only selection criteria (Eq. (11)) of AGN1 in the EWS. The horizontal solid and dotted lines show the redshift range in which Hα and the 4000 Å-break, respectively, are inside the I_E, Y_E, or J_E filters (H_E is not used in Eq. (11)). We also report the variation of the F1 score with redshift (solid cyan line and right vertical axis).