If the Eidolon is one below Max Attacks, can you select Claws?
Description for Max Attacks:
This indicates the maximum number of natural attacks that the eidolon is allowed to possess at the given level. If the eidolon is at its maximum, it cannot take evolutions that grant additional natural attacks. This does not include attacks made with weapons.
Description for the Claws Evolution:
An eidolon has a pair of vicious claws at the end of its limbs, giving it two claw attacks. These attacks are primary attacks. The claws deal 1d4 points of damage (1d6 if Large, 1d8 if Huge). The eidolon must have the limbs evolution to take this evolution. This evolution can only be applied to the limbs (legs) evolution once This evolution can be selected more than once, but the eidolon must possess an equal number of the limbs evolution.
For example, assume a level 4 Quadruped with Bite, 2 Claws, 4 legs, and 2 arms. With Max Attacks 4, that leaves it at 3/4 Natural Attacks. It has two more limbs to put Claws on, but is only allowed one additional natural attack.
Can you select Claws? The Max Attacks says it can't take evolutions that grant additional natural attacks if it is at the maximum. It's currently under the max, but taking claws would put it over.