sara's the wayfarer mechanic! and a secret android, but she tries not to telegraph that to new crew until she can trust them. otherwise, she's a cheery ball of sunshine and looks like she's 12, but no one knows the ship better. one of her previous shipmates/mentor/adoptive father was also ex-aia and taught her most of what she knows about combat, so maybe she would notice similarities in some of his training/skills?