diff --git a/deploy/thermograph.env.example b/deploy/thermograph.env.example
index 79a1106..94cb2e8 100644
--- a/deploy/thermograph.env.example
+++ b/deploy/thermograph.env.example
@@ -67,6 +67,12 @@ WORKERS=4
 # Read once at process start; changing it needs a restart, not a live toggle.
 #THERMOGRAPH_ROLE=all
 
+# The worker's own recurring jobs (city warming, IndexNow), gated by the same
+# leader election as the notifier above. Hours between runs; both are cheap
+# no-op skips when there's nothing to do, so the defaults rarely need changing.
+#THERMOGRAPH_WARM_CITIES_INTERVAL_HOURS=24
+#THERMOGRAPH_INDEXNOW_INTERVAL_HOURS=6
+
 # Base path the app is served under.
 #   /            -> app at the domain root (Thermograph owns the whole domain —
 #                   this is what the Caddyfile expects: thermograph.org proxies "/")