test_shifted_jets, test_shifted_storage, test_raw_exchange and test_channel_root pass refinements/level_* lists; examples fixed_patch_jet and fixed_periodic_patch pass refinements=[BOUNDS] instead of the positional bounds. Assertions kept; the shifted-storage case base_block-without-fine_block now expects the level-list rule 'blocked refined levels below' (same constraint). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>