[b]Materials;[/b] What are the nanobots made of, are they a metal, an organic compound (maybe they are freemoving cells), or some kind of metamaterials? They're metamaterials.

How easily accessible are the atomic or molecular components?
Not very, it's a blend between DNA and nanotechnology

What are the limits of these materials in terms of tactile strength, hardness, pressure, cold, heat, radiation, oxidation etc? 

They have the hardness of a diamond, extremely tough resistants to extreme temperatures, but melt quickly when exposed to super heated metals and weapons.

[b]Energy;[/b] How are the nanobots powered, do they have internal fuel-cells, glucose, microscopic solar-panels, are they fueled by ambient radiation be it alpha beta or gamma or through the usage of a thermocoupling, subspace microwaves or nearby electromagnetical fields? The issue is their extreme size constraint, holding a charge without magical technology of hyperspace linkage mean they either have to have a constant supply of energy or have a short active time limit before recharge.

They absorb energy, be it solar, electrical, friction, heat, ect to keep themselves going, much like a perpetual motion mechanism.

[b]Capabilities;[/b] What is the use of the nanobots, because due to their size, it is hard for them to do more than a single or a few things. Maybe respond to a chemical imbalance by releasing medicine or expand to seal a wound. If the function of the nanobots are of the more destructive variety, how is this achieved? is it something dependant on their energy-levels to perform certain actions, are they dependant on outside environmental factors, or do they need to attain a certain group-density to reach the grey goo critical mass. This is of course the information about the nanobots most influenced by the other four points.

They can build almost anything out of anything. Like McGiver but near microscopic.

[b]Control;[/b] Do the nanobots follow a preset of commands or instructions regardless of what the user wants? Or are they all equipped with a small processor and narrow ai, maybe a connection network to all the other nanobots for a pseudo-hivemind. They try to carry out their latest instructions.

[b]Production;[/b] This is the kind of nanobots that assemble more of themselves out of nearby raw metals. Anything that can conduct a electrical charge can be used to create more.