"Yes," he said, "that aspect would be hidden. Word of mouth only. Codeword… something like 'haven'."

(Or just like 'Haven'.)

His smile is meant to seem playful but is obviously genuine. "What?"

Cooling it, though still smiling, he adds, "He could be a great practice adversary in training, get to fulfill his combat functions without harming anyone." (More than he really got to with the Rebellion. Cassian wouldn't let Kay make a strike for him.)

A little more somberly, "And if we did need to activate Haven protocol, he could fulfill his security function too."