Heavy deadlifts, loaded carries and repeated lumbar flexion under fatigue are the usual aggravators when sciatic symptoms are active. RepRoute's injury map has no sciatica entry — flag the lower back instead. That's the tag the exercise catalogue carries.
What that flag does: every exercise tagged lower_back is REMOVED from your plan — 209 of the 219 hinge, carry and core movements. Hinging goes almost entirely (145 of 146), loaded spinal flexion goes completely (47 of 47), and most carries go (3 of 5).
Ten movements survive, mostly bracing work: Bird Dog, Dumbbell Farmers Walk, Extended Plank, Farmer's Walk, Glute Bridge, Kneeling Plank, Pallof Press, Pallof Press With Rotation, Plank and Push Up to Side Plank. Not tagged is not the same as safe for sciatic symptoms — if a plank reproduces the leg pain, swap it and tell your clinician.
Emptied days are refilled with up to three exercises from what's still legal — squats, presses, rows. There's no depth cap, no load reduction, no intermediate step. The engine removes or it doesn't.
Sciatic symptoms are a clinical matter before they're a programming one. Shooting leg pain, numbness, weakness or any loss of bladder control are red flags — see someone. RepRoute is a planning tool and makes no claim to be anything else.