diff --git a/cluster/applications/monitoring/httproute.yaml b/cluster/applications/monitoring/httproute.yaml
index 6a64e36..374d898 100644
--- a/cluster/applications/monitoring/httproute.yaml
+++ b/cluster/applications/monitoring/httproute.yaml
@@ -1,6 +1,5 @@
 # ------------------------------------------------------------------------------
 # HTTPRoute — Grafana via Cilium Gateway
-# Cert issued per-service via cert-manager annotation on the Certificate
 # ------------------------------------------------------------------------------
 apiVersion: cert-manager.io/v1
 kind: Certificate
@@ -25,12 +24,21 @@ metadata:
     external-dns.alpha.kubernetes.io/target: "10.1.71.90"
 spec:
   parentRefs:
-    - name: fastpass-gateway
+    - group: gateway.networking.k8s.io
+      kind: Gateway
+      name: fastpass-gateway
       namespace: gateway
       sectionName: https
   hostnames:
     - grafana.local.mk-labs.cloud
   rules:
-    - backendRefs:
-        - name: monitoring-grafana
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        - group: ""
+          kind: Service
+          name: monitoring-grafana
           port: 80
+          weight: 1
diff --git a/cluster/bootstrap/README.md b/cluster/bootstrap/README.md
index 0b9f001..3e44971 100644
--- a/cluster/bootstrap/README.md
+++ b/cluster/bootstrap/README.md
@@ -307,22 +307,40 @@ cluster/applications/<app-name>/
 
 ### 3. HTTPRoute pattern
 
-Every HTTPRoute needs two annotations for DNS and routing to work:
-
-```yaml
-annotations:
-  external-dns.alpha.kubernetes.io/hostname: <service>.local.mk-labs.cloud
-  external-dns.alpha.kubernetes.io/target: "10.1.71.90"
-```
-
-And a parentRef pointing at the platform Gateway:
+Always include all fields explicitly — Cilium defaults `group`, `kind`, `weight`,
+and `matches` at reconcile time, causing ArgoCD out-of-sync if omitted.
+
+Full HTTPRoute template:
 
 ```yaml
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: <service>
+  namespace: <app-namespace>
+  annotations:
+    external-dns.alpha.kubernetes.io/hostname: <service>.local.mk-labs.cloud
+    external-dns.alpha.kubernetes.io/target: "10.1.71.90"
 spec:
   parentRefs:
-    - name: fastpass-gateway
+    - group: gateway.networking.k8s.io
+      kind: Gateway
+      name: fastpass-gateway
       namespace: gateway
       sectionName: https
+  hostnames:
+    - <service>.local.mk-labs.cloud
+  rules:
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        - group: ""
+          kind: Service
+          name: <service>
+          port: <port>
+          weight: 1
 ```
 
 ### 4. Per-service certificate