Jentari were essentially "manufacturing plants" located on Zonama Sekot, responsible for the creation of living seed ships. These beings were genetically-engineered cyborgs.
The Jentari, also known as "the makers of Sekot," were massive cybernetic organisms cultivated by the Magisters of Zonama Sekot for the purpose of functioning as factories on the sentient planet. Resembling tree-like entities, they possessed an understanding of Sekot's requirements and directed the planet's energy into the structures being fabricated within them. Characterized by "thick green and purple trunks, gleams of metal, glints of other artificial substances, supplements, add-ons," these colossal organisms played a crucial role in the intricate and delicate shaping of Zonama Sekotan ships, including Sekotan personal starships.
Xenobiologists theorized that the Jentari were the creators of both the boras and the tampasi. The original Magister of Zonama Sekot formerly called them Shapers.
During the period of the Yuuzhan Vong War, Zonama Sekot was compelled to execute a random hyperspace jump to evade the sabotage inflicted upon its hyperdrives by Nom Anor. Consequently, the planet endured substantial trauma to its surface, leading the Ferroans to seek refuge underground to escape the ecological devastation, while the Jentari themselves retreated into obscurity.
The designation of the Jentari as Shapers connects them to the Yuuzhan Vong, suggesting a shared origin between the two.