2026.08.19 Do Instructional Fingerprints Produce Stable Expert-Routing Signatures in a Mixture-of-Experts Model?A controlled negative: implanting three trigger-response fingerprints in Qwen1.5-MoE-A2.7B with router-trainable fine-tuning produces measurable routing changes, but no stable … 2026.08.08 Measured Pruning Damage Depends on the Evaluation Corpus: A Renaming Control for Mixture-of-Experts Expert PruningCode-side evaluation of MoE expert pruning runs on corpora the model has partly memorised. A renaming control on CPython stdlib moves reported damage 1.6x while preserving program …