skill usage

skills/usage/scripts/ollama_usage_poll.py

@@ -1,8 +1,9 @@
 #!/usr/bin/env python3
 """Sample Ollama Cloud usage into db/ollama_usage.sqlite. Run from cron every minute.
 
-Writes a `samples` row only when something changed; `meta` records every poll so a
-gap in `samples` can be told apart from a poll that failed or never ran.
+Writes a `samples` row only when something changed; `meta` holds a single row with
+the last poll's timestamp and status, so a history that stopped moving can be told
+apart from a poller that stopped running.
 """
 
 from __future__ import annotations