Categorial approaches to the minimalist program have problems with cyclic movement and island effects, where the island is induced by a feature that has been checked. Chomsky \cite{chomsky:95} proposes a single solution to both problems: ``interpretable'' features do not delete even when checked, and therefore (a) they can be reused in cyclic movement and (b) they induce more persistent islands. We propose an implementation of Chomsky's Minimal Link Condition (MLC) in a multimodal categorial grammar and show how interpretable features can be given (very limited) access to contraction and weakening so as to prevent MLC violations even after they have been checked. Since interpretable features only appear negatively in the sequent antecedent, giving them access to contraction does not threaten the decidability of the logic.