diff --git a/_data/rules.yml b/_data/rules.yml
index b9506d2..6f5d04d 100644
--- a/_data/rules.yml
+++ b/_data/rules.yml
@@ -1534,9 +1534,90 @@ groups:
                 for: 3m
               - name: Nats high routes count
                 description: High number of NATS routes ({{ $value }}) for {{ $labels.instance }}
-                query: "gnatsd_routez_num_routes > 10"
+                query: "gnatsd_varz_routes > 10"
                 severity: warning
                 for: 3m
+              - name: Nats high memory usage
+                description: NATS server memory usage is above 200MB for {{ $labels.instance }}
+                query: "gnatsd_varz_mem > 200 * 1024 * 1024"
+                severity: warning
+                for: 5m
+              - name: Nats slow consumers
+                description: There are slow consumers in NATS for {{ $labels.instance }}
+                query: "gnatsd_varz_slow_consumers > 0"
+                severity: critical
+                for: 3m
+              - name: Nats server down
+                description: NATS server has been down for more than 5 minutes
+                query: "absent(up{job="nats"})"
+                severity: critical
+                for: 5m
+              - name: Nats high CPU usage
+                description: NATS server is using more than 80% CPU for the last 5 minutes
+                query: "rate(gnatsd_varz_cpu[5m]) > 0.8"
+                severity: warning
+                for: 5m
+              - name: Nats high number of connections
+                description: NATS server has more than 1000 active connections
+                query: "gnatsd_connz_num_connections > 1000"
+                severity: warning
+                for: 5m
+              - name: Nats high JetStream store usage
+                description: JetStream store usage is over 80%
+                query: "gnatsd_varz_jetstream_stats_storage / gnatsd_varz_jetstream_config_max_storage > 0.8"
+                severity: warning
+                for: 5m
+              - name: Nats high JetStream memory usage
+                description: JetStream memory usage is over 80%
+                query: "gnatsd_varz_jetstream_stats_memory / gnatsd_varz_jetstream_config_max_memory > 0.8"
+                severity: warning
+                for: 5m
+              - name: Nats high number of subscriptions
+                description: NATS server has more than 1000 active subscriptions
+                query: "gnatsd_connz_subscriptions > 1000"
+                severity: warning
+                for: 5m
+              - name: Nats high pending bytes
+                description: NATS server has more than 100,000 pending bytes
+                query: "gnatsd_connz_pending_bytes > 100000"
+                severity: warning
+                for: 5m
+              - name: Nats too many errors
+                description: NATS server has encountered errors in the last 5 minutes
+                query: "increase(gnatsd_varz_jetstream_stats_api_errors[5m]) > 0"
+                severity: warning
+                for: 5m
+              - name: Nats JetStream consumers exceeded
+                description: JetStream has more than 100 active consumers
+                query: "sum(gnatsd_varz_jetstream_stats_accounts) > 100"
+                severity: warning
+                for: 5m
+              - name: Nats frequent authentication timeouts
+                description: There have been more than 5 authentication timeouts in the last 5 minutes
+                query: "increase(gnatsd_varz_auth_timeout[5m]) > 5"
+                severity: warning
+                for: 5m
+              - name: Nats max payload size exceeded
+                description: The max payload size allowed by NATS has been exceeded (1MB)
+                query: "max(gnatsd_varz_max_payload) > 1024 * 1024"
+                severity: critical
+                for: 5m
+              - name: Nats leaf node connection issue
+                description: No leaf node connections have been established in the last 5 minutes
+                query: "increase(gnatsd_varz_leafnodes[5m]) == 0"
+                severity: critical
+                for: 5m
+              - name: Nats max ping operations exceeded
+                description: The maximum number of ping operations in NATS has exceeded 50
+                query: "gnatsd_varz_ping_max > 50"
+                severity: warning
+                for: 5m
+              - name: Nats write deadline exceeded
+                description: The write deadline has been exceeded in NATS, indicating potential message delivery issues
+                query: "gnatsd_varz_write_deadline > 10"
+                severity: critical
+                for: 5m
+
 
       - name: Solr
         exporters:
diff --git a/dist/rules/nats/nats-exporter.yml b/dist/rules/nats/nats-exporter.yml
index 13eda2b..a9a74fa 100644
--- a/dist/rules/nats/nats-exporter.yml
+++ b/dist/rules/nats/nats-exporter.yml
@@ -38,4 +38,4 @@ groups:
         severity: warning
       annotations:
         summary: Nats high routes count (instance {{ $labels.instance }})
-        description: "High number of NATS routes ({{ $value }}) for {{ $labels.instance }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
+        description: "High number of NATS routes ({{ $value }}) for {{ $labels.instance }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
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