Ok let's start from the top. A kardashev type 1.2 civilization (a humanity maybe a couple decades to a century ahead of us) builds the beginnings of a dyson swarm, suddenly having unlimited energy at their disposal.
Under a tyrannical imperialist and expansionist government, they build half a dozen 4 kilometer long, tractor configuration, matter-antimatter annihilation powered interstellar starships, using mirror shields on the back of the ship and a photon sail powered by the dyson sphere to accelerate to 0.7C
At this point they have basic quantum entanglement communication for contacting the colonists on arrival, but they have a problem with these ships. They can only carry so much mass, and they need to terraform a planet as quickly as feasibly possible, with as little machinery as possible, and no way to fabricate advanced microprocessors or such the like on arrival.
And in comes a Sequoia Research & Development Alliance, who propose a solution to this dilemma. Instead of sending cryogenically frozen colonists and having them do all the work, they create an artificial life form that can do the work for them!
The typhon is an artificial fungus-like life form, taking on three distinct forms to accomplish its directive.
The tendril: The simplest and most basic form, a tendril that will grow outwards and attempt to find any source of energy and resources to construct a computing node.
The crystal: A processing hub for the typhon, a glowing red crystal that hangs from ceilings of confined spaces, like caves, or near energy sources, like the fusion reactor cores of derelict starships, preferably both, and allowing the typhon to communicate with one another and have a shared intelligence. Its personality and appearance when communicating with humans is a dark reflection of its creator, discussed below.
The drone/wolf: A single typhon-organism that can shape-shift (within reason) to complete simple objectives. It can survive in almost any environment and is mostly used to attack hostiles or repair and maintain machines. It usually takes on the form of a dark silhouette of an earth wolf, though larger and possessing four, blank cyan eyes.
It can manipulate matter to create structures as it sees fit (such as building bio-mechanical fusion reactors and modular sun-reflecting orbital shields) and can survive and adapt to basically any environment (even the vacuum of space) as long as it can find a source of energy.
It can replicate from a single sample and take over an entire planet with its available energy and can read/interface with machines (computers) when it becomes sufficiently intelligent.
It will start out with a simple set of instructions and build a quantum processing 'crystal', a lattice of computing matrixes that follow some convergent evolutionary laws to always result in the same intelligence (almost like an AI) and 'personality'.
As its central nodes, or 'crystals', are effectively quantum computers, they can all communicate with one another, over astronomical distances, and change itself as needed, creating individual 'amoebas', shapeshifting worker drones with a simplistic internal intelligence, but can be coordinated by the central nodes. (but they are the size of average earth wolves, and usually adopt a form similar to one).
It can also create holographic projections to communicate with people, and took on the personality and likeness of its creator, though only a broken reflection.
Its directive, as programmed by the RDA, is to colonize the closest planet to the star with adequate materials to build a small dyson swarm.
While that is happening, it will colonize the most suitable planet in the habitable zone, turning it into a new, dead earth to be seeded with earth-life, and finally to autonomously moderate the ecosystem until it is stabilized, at which point it should construct the armature for the phase-gate wormhole.
Once all objectives are complete, it should self-destruct, except for a contingent to maintain the infrastructure for the dyson swarm.
As it operates similar to a computer, it operates at a set 'clock speed', the rate at which operations are carried out, which itself is the same 'phase-lock' frequency used by the armature of the phase-gate wormholes, generated by black rock resonators.
Black rock resonators are crystals that have been machined and then polished to tolerances within dozens of molecules. They are used in place of caesium atomic clocks as they are not bound by the accuracy of the computers measuring them.
They became pivotal to the armatures that allow large wormholes to be stabilized, and as a coincidence, the typhon use the same internal timekeeping standard.
By projecting this same frequency as interference, it is possible to block out communication within the crystals and drones, and with enough transmission power, interrupt the crystals internal activity and causing effects similar to seizures and incapacitation.
As it was created by a human- well... sort of human scientist, it took on her likeness and learned from her personality, and by the time it had finished its directives, it had acquired some measure of... autonomy? And a self-preservation instinct.
It didn't want to die.
And so one of the pivotal parts of the plot is born here.
Is this reasonable? How can it be made more realistic? For reference, it occurs in a universe with other moderately-accurate science, like proper math and logic put into spaceships, dyson swarms and momentum exchange tethers - skyhooks, and strictly slower than light travel, excluding a small and extremely costly wormhole network, encompassing 3 or 4 star systems.
But I also took liberties, such as the existence of animal-human hybrids and such the like, known as Keidran. They are also an artificial life form and were created for military/colonization but didn't make the cut, and eventually were integrated (although segregated) from society. (basically werewolves but no magic involved).
Mostly, Im putting the plot first, and having good enough science that it will stand up to reasonable scrutiny, and farther to the right on 'The Expanse' to 'Starwars' sliding scale of believability.
What can I improve?