Tool Manipulation allows the user to freely manipulate a sorcerer's broomstick by levitating it telepathically. Among other magic broom related skills, this technique grants the user the ability to levitate on the tool or create gusts of powerful wind imbued with cursed energy.
While fighting alongside her classmates from Kyoto Jujutsu High, Momo Nishimiya mainly uses her technique in a supportive role. She uses the broom to float high above the battlefield, allowing her to scout out her team's target.
In cases where she can't use her phone, Momo's broom can carry a lamp to silently create a signal above her desired target, communicating to her teammates exactly where to attack.
In a one on one fight with a less mobile opponent, Momo can use her broom to stay out of range. With gusts of cursed energy wind, she can keep her opponent at a distance while avoiding their offense at the same time. Additionally, Momo cursed energy wind is effective for distracting Momo's opponents. By using the broom independent of herself, Momo can land attacks directly with her broom using telepathy before jumping back on to ride it again.
During the Shibuya Incident, Momo scouted out Pseudo-Geto from above and used a lantern hanging from her broom as the signal. The signal notified her allies from Kyoto Jujutsu High to use their long-ranged attacks on the curse user. Once Choso intervenes, Momo observes the battle from above as her allies make a last-ditch effort to rescue Satoru Gojo. When most of them are frozen by Uraume, Momo joins the battle in a more direct fashion, attacking the curse users with her Wind Scythe attack.