{"family":"muon_constructive_novelty","part":"muon_lr_gate","class":"Gate","note":"Gate Muon novelty by positive retention so raw surprise only boosts updates when it aligns with momentum.","edits":[{"old":"            promotive = novelty / (1.0 + novelty)","new":"            promotive = max(0.0, retention) * novelty / (1.0 + novelty)"}]}