I have never heard of this "Inhibitor" trilogy, But i rather doubt it really.
http://revelationspa...hibitor_trilogy
From Revelation Space, released in 2000 (7 years before ME1):
The book opens in the year 2551 on Resurgam, a planet considered a backwater on the edge of colonized human space. Dan Sylveste, an xenoarchaeologist, leader of the colony, and wealthy scion of a prominent scientific family, leads a team excavating the remains of the Amarantin, a long-dead, 900,000-year-old civilization that once existed on Resurgam. As a violent dust storm threatens to temporarily shut down the excavation, Sylveste discovers new evidence that the entire Amarantin race achieved a much higher level of technological sophistication than was previously known, before they were wiped out in a single mysterious cataclysm.
Emboldened, Sylveste makes a deal with the crew—he will attempt to cure their captain in exchange for them using their ship to take him closer to Cerberus, a planet near Resurgam that carried particular significance for the Amarantin civilisation.
As Sylveste and the crew of the Nostalgia for Infinity approach Cerberus, Sylveste realizes the massive celestial body isn't a planet at all—but rather, a massive technological beacon, aimed at alerting machine sentience to the appearance of new star-faring cultures. It is this beacon, Sylveste belatedly realises, that alerted a machine intelligence known as the Inhibitors to the presence of the Amarantin, and ultimately caused the demise of that race.
From Redemption Ark, released in 2002 (5 years before ME1):
The novel begins in the year 2605, where Skade has been tasked with investigating a Conjoiner ship that has returned to the Conjoiner headquarters, the Mother Nest. It is revealed early on that Skade is a Conjoiner woman who appears to be in touch with secret circles of control within the theoretically egalitarian Conjoiners society. In the ship, she discovers Galiana, the original founder of the Conjoiners, who left Conjoiner space decades previously on an exploration mission. In space, she encountered the Inhibitors, who have unleashed an agent into her ships which has taken control of it and killed her crew. It now controls her mind as well. Galiana requests that Skade kill her, but Skade only places her in suspended animation in the hope that she can be helped in the future.
In addition to the two plot lines there are occasional asides explaining the history and motivation of the Inhibitors. These asides explain the galaxy was once filled with star faring civilizations. Those civilizations were largely destroyed in the "Dawn War", a galaxy wide conflict over the galaxy's scarce resources. One of these civilizations determines that a collision between our galaxy and another will occur in 3 billion years and create/become the Inhibitors in order to shepherd intelligent life through this cataclysm. They had determined that collision could be most easily dealt with if intelligent life was kept isolated to individual star systems, leaving the Inhibitors to perform any necessary manipulations of stars and planets to reduce the damage caused by the collision.
The asides also reveal that the Inhibitors were not as brutal in their past, but their performance has degraded over the millennia. They have been detecting civilizations at later stages, and required to commit wholesale extinction more often.
Clavain and Felka learn of this history during communication with the Inhibitors in Galiana's head. Clavain, however, is not convinced that the Inhibitors are right about the coming catastrophe and believes that their degrading performance may give humanity a chance for survival that other species have not had. As such, he rejects the Inhibitor requests to stand down.
And from the Wikipedia page about the races in Revelation Space:
The Inhibitors are the intelligence left over from a massive war — the Dawn War — that occurred between the first few civilizations that arose in the Milky Way galaxy. Initially an organic race, they later made use of extensive cybernetics to enhance themselves, and eventually discarded their organic forms entirely to become wholly machine. The hints of a quadrupedal, warm-blooded vertebrate (also known as mammalian) past can be faintly discerned in their architectures.
They are non-sapient machinery, referring to themselves as post-intelligent. They function on unknown principles speculated in the novel to be femtotechnology or "structured" spacetime and are capable of self-replication. Their technology often manifests as black cubes of "pure force" and is immune to conventional human weaponry; the machinery is easily capable of dodging most weapons thrown at it (usually temporary holes will appear and allow the shot to pass through) or is simply unaffected by it. The machinery can only be defeated by alien weapons supplied by the Hades Matrix or the Nestbuilders. They were created by the survivors of the Dawn War and their task is to inhibit the spread of intelligent life beyond individual planets or solar systems: the purpose, stated in Redemption Ark, being to shepherd the galaxy through a crisis 3 billion years (or 13 Galactic Turns) in the future: the Andromeda–Milky Way collision. By confining sapient life to only a few planets, they make the process of moving stars and systems (for collision avoidance during the crisis) far easier and more centralized, thus preserving life. Consequently, they show little interest in non-sapient life, or civilisations that have not progressed beyond their own star system. However, when they have no choice, they will commit acts of xenocide in order to prevent life from spreading further.
They are not sapient; however, in order to supervise and control the process of xenocide, they are capable of forming a sapient overseer from many less-than-sapient machines. They also have some very advanced technology, and know about fifteen ways to kill a star, including one that allows the core material of a star to gush out and be used as a sort of solar flamethrower on planets (shown in Redemption Ark). This is the exception rather than the rule however, as being forced to destroy an entire system to cull a single species is viewed as a moral defeat. Normally it is much preferred to exercise (relative) restraint and preserve the long-term ability of the affected worlds to support life.
They do not actively monitor the galaxy in their wait for a new star faring culture to suppress, instead they plant a series of triggers near interesting phenomena or structures in the galaxy and wait for sapient life to activate those triggers. The Cerberus object around the neutron star Hades was one such object, and it was inadvertently activated by Dan Sylveste at the end of the book Revelation Space, thus triggering the events in the rest of the series.
They are called wolves by the Conjoiners, because they lurk in the blackness of interstellar space and attack in packs.
In the novels it becomes apparent that the Inhibitors are starting to fail in their mission as civilisations are getting further and further into space before being found and destroyed. In fact, in the last book Absolution Gap, in the epilogue, it is shown that humanity, with technological assistance from other star faring, albeit hidden, cultures (for example, the Nestbuilders), were able to push back the Inhibitors and establish an Inhibitor-free zone around human space. However, this introduced the problem of Greenfly, a terraforming-replicator gone wrong that ravaged systems.