You cannot prevent it.

You can:

• curate the mods
• screen submissions with a scanner
• restrict your API as much as possible
• select a language that is safety oriented
• sandbox foreign code

All of these increase safety to varying degrees. But none of them are a guarantee.

You cannot prevent it (in situations which are equivalent to running arbitrary native code supplied by others).

You can:

• curate the mods
• screen submissions with a scanner
• restrict your API as much as possible
• select a language that is safety oriented
• sandbox foreign code

All of these increase safety to varying degrees. But none of them are a guarantee.