{"id":"wal-open-latest-init-only","text":"`_open_latest` is called exclusively from `__init__`, so the TOCTOU window between `_wal_files()` and `os.path.getsize()` cannot be hit by concurrent WAL operations","truth_value":"IN","source":"entries/2026/05/29/topic-wal-size-check-toctou.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"wal-open-latest-init-only","truth_value":"IN","reason":"premise"}]}}