{"id":"no-direct-page-writes","text":"The BTree class never calls `pm.write_page` directly for data pages; all data page writes are routed through `_wal_write_page` (or `_wal_write_meta` for page 0) to maintain the write-ahead invariant.","truth_value":"IN","source":"entries/2026/05/29/b-tree-storage-engine-btree-_wal_write_page.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"no-direct-page-writes","truth_value":"IN","reason":"premise"}]}}