validation/multi_model/README.md

Multi-model replication

Both model experiments were repeated, unchanged, after the preregistered claude-opus-5-5 run (whose files are in ../model_baseline/ and ../code_repair/) with claude-sonnet-5-5, claude-haiku-5-5 and claude-fable-5-1:

• VersionProbe-verified, closed book: the same 984 items and prompts, the same agent setup (read the questions, write answers; no other tools). versionprobe/answers_a_batch*.csv.
• Code repair: the same 150 tasks and three conditions (../code_repair/cond_*), the same runtime check in fresh environments (recorded with both the preregistered bind_partial and full bind, repair/verify_strict.jsonl), and the same blind judge model (claude-opus-5-5, condition and answering model hidden; repair/judge_*).

results.json summarizes all four models (scored by pipeline/score_models.py), including the share of answers that returned the snippet unchanged and pooled discordant-pair counts (indicative only: pooling treats model-task pairs as independent). The replications were not preregistered separately; they reuse the preregistered protocol unchanged.