Take a look at this very slick video describing the maintenance of space megastructures, and the need for space janitors.
(Megastructure Maintenance & Space Janitors)
Science fiction writers had a variety of takes on this idea. Consider the repair robots from The Invincible (1954) by Stanislaw Lem and the repair drones from Neuromancer (1984) by William Gibson. You might enjoy this article Antenna Repairmen In Fact And Fiction as well.
And who can resist the MSE-6 repair droid from Star Wars!
Scroll down for more stories in the same category. (Story submitted 8/27/2019)
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Illustrating Classic Heinlein With AI
'Stasis, cold sleep, hibernation, hypothermia, reduced metabolism, call it what you will - the logistics-medicine research teams had found a way to stack people like cordwood and use them when needed.'
Deflector Plasma Screen For Drones ala Star Wars
'If the enemy persists in attacking or even intensifies their power, the density of the plasma in space will suddenly increase, causing it to reflect most of the incoming energy like a mirror.'