cloaking and mines

[Puke]

I was thinking about the space monsters thread, and how a creature might be able to slip through a minefield undetected (and thus make them more of a mennace that could strike anywhere)and i came up with some questions.

how do mines detect targets? do they have built in sensors? if you have a high enough cloaking level, can you get through mines? I know if you have a high enough sensor level, you can see mines. I also know that you can change the cloaking level that a mine has.

related: can you change the sensor type on a mine such that a ship with a certain kind of cloaking would be invisible to mines but not to other ships with a basic sensor of that type built in (even though that would require editing something like the hull or bridge or MC to include level 1 sensor on all ships or something)

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"...the green, sticky spawn of the stars"
(with apologies to H.P.L.)