Engineering

These minibots need designing as replicable units.

If you make a factory unit that churns out minibots then you have to scale the factory unit when you need to scale the minibots. So it's the factory unit which is self-replicating. That seems okay. If the factory unit is made of minibots then that's how the minibots replicate themselves but both aspects need designing. One minibot can't make a new minibot but lots of minibots can combine to make a minibot factory.

Minimizing the number of specialist minibots seems sensible. On the other hand if some are construction parts and some are processing parts and some are bot team communication parts, that could be three specialisms immediately.

The bot factory has to be able to construct logic circuitry. Silicon chips. Capacitor/batteries fed from the eternal energy feed. Every bot has at least this close-coupling communications chip so they can self-organize.

Every bot has to be mobile. The site bots are in a gravity well, the mirror bots aren't, that's two forms of mobility.