The "cloaking cap" was a fake cloaking device Jedi General Anakin Skywalker claimed to exist to deceive General Flebek, who was searching for the secret to invisibility. The real secret was a Segredo named Kreeda, who was protecting a number of people from the Clone Wars. The cap was actually a simple hat from a Kyuzo she was protecting, and, as he planned, Skywalker was spotted by the Separatists. This allowed General Yoda to take out a B1-series battle droid and, after Skywalker threatened her, Flebek fled and believed the secret had been a Jedi trap.