| nxt_cache_handler | Drop-in cache handler for the nordstat family |
| nxt_clear | Clear cached queries from the nordstatExtras backend |
| nxt_close | Close a nordstatExtras cache handle |
| nxt_flush | Flush pending async writes |
| nxt_gc | Garbage-collect stale cache rows |
| nxt_is_backend | Detect whether a cache location should use the nordstatExtras backend |
| nxt_open | Open or create a nordstatExtras SQLite cache |
| nxt_search | Full-text search across cached metadata |
| nxt_write_async | Enqueue an asynchronous cache write |