Is there a way to set "Max Fall" in addition to "Max Climb"?

Is there a way I can have pathfinding avoid walking off edges?

On your character there should be a checkmark for constrain inside graph (https://arongranberg.com/astar/docs/aipath.html#constrainInsideGraph). Did you try that maybe? idk. still learning myself but so far, super impressed by what this can do

That just means stay inside the graph, not don’t fall.