Since the trainer and another thread didn't mention this, I just wanted to add a method to edit base stats of agents to this old topic in case someone still plays this game.
As OP mentioned elsewhere, a group search can find agent stats accurately, but what is new is that you can also do it for the base attributes outside of missions. Reading them from left to right and up to down, one can list them easily like here:
Notice I have already increased all the stats by +10 each to demonstrate that it immediately shows up in the game. The derived secondary stats on the right don't however immediately update which might seem like you could only edit the display of values. I have confirmed by sending an edited agent into the field though that the secondary values get updated on missions, so you will get all the HP, movement, awareness etc increase.