Reverse Alignment: When Humans Adapt to Machines — reproduction package

Contents Path What it is `code/` The complete analysis pipeline (33 Python scripts). Frozen artefacts listed in `PREREGISTRATION.md` §3 are byte-identical to the files hashed at the pre-registration lock (verified 2026-09-18, see `CHECKSUMS.sha256`). `results/` Every result file cited in the paper (`results_*.json`, `results_*.csv`), plus `exports/` (reporting exports for Source Data: per-author paired means, per-abstract monthly densities, the 500 placebo-lexicon d_z values, leave-one-word-out values, composition-fixed check, word-level diagnostics, corpus recount). `lexicons/` The frozen 64-form AI-signature lexicon (`AI_LEX` in `code/msi.py`), the FAMOUS/OBSCURE partition (`code/pilot5_rebound_split.py`) and the automatically induced version-1 vocabulary (`msi_v1_vocab.json`). `wals/` The WALS-derived typological distance inputs (`languages.csv`, `values.csv`, CLDF export) used by `pilot14_langdist.py`. `PREREGISTRATION.md` The pre-registered confirmatory analysis plan (v1.0 locked 2026-08-29), amendments 1.1–1.2, decision record and deviation log D1–D4 (Chinese original). An English rendering is Supplementary Note 1 of the paper. `CHECKSUMS.sha256` SHA-256 of every file in this deposit. `SourceData/` The seven Source Data workbooks (one per figure) submitted with the paper.