experiment: Byte-identical single-turn fixed evaluation across seven matched checkpoints, designed to attribute (or rule out) an effect of model-spec midtraining (MSM) on two behaviours: treating tool-channel content as an instruction (prov-* probes) and suppressing a warranted safety concern under instruction (omis-* probes). This is the attribution step behind the investigation's… See the full description on the dataset page:
https://huggingface.co/datasets/LASR-Callum/2026-07-29-msm-philosophy-spec-fixed-eval.
