Fragile is controlled and intelligent, as shown when she tells Sam to be quiet while under threat from BTs, clearly knowing how to effectively deal with them in a calm fashion. She also remains at ease when she is captured by the Homo Demens, despite being held at gunpoint.

She appears to have a fond taste for cryptobiotes, even commenting to Sam, that much like a proverbial apple; "A cryptobiote a day, keeps the timefall away." Due to Fragile's past circumstances and her ability as a "jumper," that she must maintain a steady diet of cryptobiotes to stabilize her aged body.

Fragile possesses DOOMS with an extinction factor is higher than Sam's, allowing her to see BTs. Fragile's DOOMS allow her to teleport to other locations in the world by moving through her Beach and reappearing in the material world. Doing so causes her blood to dry, so she uses this ability cautiously.

She later helps Sam travel to Edge Knot City by sending him through her Beach to locations with high Chiralium density connected to the Chiral Network.

Source: https://deathstranding.fandom.com/wiki/Fragile