A Docbot was a hoverbot deployed to maintain the pods that humans were grown and kept in within the many power plants of the Real World. It served to integrate, re-integrate, connect, or eject humans who were disconnected from the Matrix. The disconnection could result from accepting the red pill, self-assertion, or by death.
Notably, docbots did not kill awakened redpills, likely because of the potential danger of removing the Prime Program. The disconnected are simply left to die due to muscle atrophy and lack of nutrition.
In appearance, a docbot was arachnid-like in structure, with four long, spiked legs surrounding its face. A camera lens of sorts protruded from its front end, supposedly acting like an electronic eye. Another leg attached to its underside contained a claw. When a redpill was detached from their pod, the claw gripped them harshly around the neck and appeared to also house the apparatus that detached the data probe from the headjack.
Docbots were also seen during the early years of the Machine War, before the widespread enslavement of humanity under the Matrix, and were serving as anti-infantry crawlers defending larger machines who collected defenseless humans.