In Attack of the Clones, we learn that the clone army was supposedly ordered by a Jedi named Sifo-Dyas. But for Obi-Wan to even reach Kamino, he first has to uncover the fact that someone deleted the planet’s data from the Jedi Archives. That is what makes the whole thing so suspicious. If Sifo-Dyas really meant to help the Jedi, then why would Kamino be hidden from them in the first place? Why erase the system at all? And if Sifo-Dyas was already dead, then who actually removed Kamino from the Archives?
Tales of the Jedi Finally Revealed That Dooku Deleted It
For a long time, Attack of the Clones gave us the mystery without the answer. Obi-Wan discovers that Kamino has been erased from the Jedi Archives, and the film treats that like a major warning sign, but it never actually tells us who was responsible. All we know in the movie is that someone inside the system had both the access and the intent to hide the planet from the Jedi. That made the cover-up feel even bigger, because Kamino was not just some random world missing from the map. It was the home of the clone army, one of the most important secrets in the entire prequel era.
George Lucas originally meant to explain that mystery in Revenge of the Sith. But once Episode III was reshaped to focus much more directly on Anakin Skywalker’s fall, a number of leftover plot threads from Attack of the Clones were pushed aside, including the missing-Kamino question. That was later brought up in the Episode III documentary, which makes it clear the answer had once been planned but never made it into the film itself. So for years, the mystery was left hanging, with fans only able to speculate about who had the knowledge and opportunity to erase Kamino from the Archives in the first place.
The answer did not come until much later in Star Wars: Tales of the Jedi, in the episode “The Sith Lord.” That episode finally shows Dooku entering the Jedi Archives and deleting Kamino’s location from the records, using Sifo-Dyas’s access to help hide the trail. In other words, the cover-up was not some vague background detail anymore. Canon eventually made it explicit that Dooku was the one who removed Kamino from the Archives, turning what had been one of the long-running mysteries of Attack of the Clones into a direct piece of the Sith plan.
Was Dooku Acting on His Own, or Following Sidious?
Tales of the Jedi finally reveals that Dooku was the one who erased Kamino from the Archives, but it still leaves one part of the story unstated: who actually wanted that done?
Dooku did not erase Kamino as an isolated act. To keep the planet and the clone army hidden, he removed Kamino from the Jedi Archives along with thirty-seven other systems, including Dagobah and Dromund. That makes the cover-up look far more calculated than it first seems. This was not just about making one important planet disappear. It was about burying that disappearance inside a much larger manipulation of the records.
That wider deletion matters because it changes the shape of the mystery itself. A single missing planet might have pointed too directly to a targeted secret. But dozens of erased systems created a broader gap in the Archives, making Kamino less obvious as the real target being concealed. In effect, Dooku was not only deleting the location of the clone army. He was surrounding it with enough missing data to make the cover-up far harder to untangle. The result is a much deeper act of sabotage than Attack of the Clones first lets on.
The key detail is that, by this point in the timeline, Dooku was already working for Sidious. That makes it much harder to see the deletion of Kamino as something he simply decided to do on his own. One possible explanation comes from the moment Dooku chose to join Sidious, as described in the Darth Plagueis novel. There, Dooku shares major secrets about the Jedi, including that they had begun to suspect the existence of two Sith Lords and that Anakin Skywalker was the Chosen One.
If Dooku was willing to reveal that much, it is not hard to imagine that he also told Sidious about the Jedi Archives and how dangerous they could be to the Sith plan. Sidious would have understood that if the Jedi discovered the clone army too early, they could shut the project down before it was ready. And as Sifo-Dyas explained to Plagueis, the Jedi were never comfortable with the idea of the Republic creating an army in the first place.