Inej's stealth and agility from "summary" of Six of Crows by Leigh Bardugo

Inej is known for her extraordinary agility and stealth capabilities, which are unparalleled when it comes to getting the job done. She uses these skills to identify threats before they even have a chance to find her. Her unarmed combat abilities also play into her ability to evade capture and hide in plain sight.

Inej's practice of physical fitness throughout her life has enabled her to possess lightning speed and strength. This gives her an edge that not many other characters can boast. Her flexibility and speed are high enough to allow her to maneuver through tight spaces or quickly jump out of harm's way.

Inej's training in acrobatics as well as childhood experiences have prepared her to move around obstacles with grace and perfect balance. With this skill she is able to dodge blades or knives almost instinctively, making her enemies miss by a hair.

Additionally, her agile memory helps her plan ahead of time in her operations. Many critique point out that her kind of planning requires extreme sharpness and detail comprehension that are essential to pull off dangerous missions.

One of her most impressive traits is her ability to remain low profile while on the move. Her knack for blending in unseen displays her aptitude at sneaking into places undetected. She often challenges herself to see how close she can get to someone without them suspecting anything.

Lastly, what sets her apart from any missionary specialist or operator is her built-in instinct, which she relies on to succeed in the most dangerous tasks put in front of her. It is this trait that allows her to trust her gut and make decisions under pressure.