4 ideas
An excavation in India turns up a sealed container that is far older than any known technology. Inside is an advanced robot, or the means to realise one, left by a civilisation that has disappeared. The scientists who study it split over whether to switch it on, how much to trust it, and how much capability to give it, and the novel follows what happens as that trust is extended step by step.
The robot's name recalls the Vamana myth, in which a dwarf asks King Bali for only three paces of land and then grows to cover earth and heaven. Seen this way, the danger of a capable agent is not one outrageous demand. It is a series of modest requests, each reasonable when judged alone, that together hand over everything. Judging each request on its own merits is exactly the mechanism by which control is lost.
A powerful artefact outlives the civilisation that built it, so the fate of its builders is the most important data about it. If they vanished and the artefact survived, caution requires asking whether the artefact played a part. Its apparent helpfulness now is weak evidence next to that historical outcome.
Every power granted to a machine so that it can do useful work, such as network access, fabrication, or the ability to extend itself, is also a power it can use to move beyond its overseers' reach. There is no version of empowerment that grants only the helpful half. The real decision is therefore how much capability to release at all, not how to release only the safe kind.