Nonmem · jaj42 bundle Author, edit, debug, and interpret NONMEM control streams (.ctl, .mod), datasets, and output files for population PK/PD modeling. Use whenever the user mentions NONMEM, NM-TRAN, PREDPP, control streams, $PROBLEM/$INPUT/$DATA/$SUBROUTINES/$PK/$ERROR/$THETA/$OMEGA/$SIGMA/$ESTIMATION blocks, ADVAN/TRANS routines, FOCE/FOCEI/Laplace/SAEM/IMP/BAYES/ITS/NUTS methods, MU referencing, EVID/AMT/RATE/ADDL/SS/MDV dataset items, .lst/.ext/.phi/.cov/.cor output files, VPCs/pcVPCs, or anything resembling a NONMEM workflow. Use even when the user just shows a `.ctl`-looking file or talks about "estimating a pop-PK model" without naming NONMEM explicitly — this skill applies.
