corpus_engine gains validate_wiki_save_version_claims: any wiki sentence coupling an old vN to a live persistence/migration verb in a save context, without explicit retirement language, fails the corpus gate. Dated logs and the process board are exempt as historical records; claims naming the exact current version pass and go stale automatically when SAVE_VERSION bumps. Four fixtures pin the behavior. Running it found ten live stale claims (cursor, compute, research, income, intel, machine-work, reach, personas, social, basement-map); all ten now state current-format truth and name the ladder's retirement. Defense: the save policy one-truth (save.rs pre-release rider 2026-07-16, recorded in sim-mechanics.md's save-format section) supersedes every wiki claim that a numbered migration still runs; tick.md's recurrence rule promotes a mechanical finding class seen twice to a corpus_engine checker instead of a third page-by-page tick. This is that checker, plus the reconciliation it enforces.