I'm reading them right now.
The Rule 5 Draft typically consists of MLB international signings, MLB players cut from keeper rosters, and unowned prospects (prospects may only be taken if they have played at AA or higher, see MiLB Roster Management; international signings that were subject to international spending limitations may not be taken in the Rule 5 Draft).
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That doesn't say that guys who weren't subject to spending limitations are automatically eligible.