diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AggregationOp.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AggregationOp.java
new file mode 100644
index 00000000..e72edacd
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AggregationOp.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum AggregationOp { MAX, MIN, AVG, LATEST }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertScope.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertScope.java
new file mode 100644
index 00000000..b69c9002
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertScope.java
@@ -0,0 +1,5 @@
+package com.cameleer.server.core.alerting;
+
+public record AlertScope(String appSlug, String routeId, String agentId) {
+    public boolean isEnvWide() { return appSlug == null && routeId == null && agentId == null; }
+}
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertSeverity.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertSeverity.java
new file mode 100644
index 00000000..39ac5ce1
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertSeverity.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum AlertSeverity { CRITICAL, WARNING, INFO }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertState.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertState.java
new file mode 100644
index 00000000..d42d7e03
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/AlertState.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum AlertState { PENDING, FIRING, ACKNOWLEDGED, RESOLVED }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/Comparator.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/Comparator.java
new file mode 100644
index 00000000..5279ca83
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/Comparator.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum Comparator { GT, GTE, LT, LTE, EQ }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/ConditionKind.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/ConditionKind.java
new file mode 100644
index 00000000..b53585ce
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/ConditionKind.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum ConditionKind { ROUTE_METRIC, EXCHANGE_MATCH, AGENT_STATE, DEPLOYMENT_STATE, LOG_PATTERN, JVM_METRIC }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/FireMode.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/FireMode.java
new file mode 100644
index 00000000..0e684084
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/FireMode.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum FireMode { PER_EXCHANGE, COUNT_IN_WINDOW }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/NotificationStatus.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/NotificationStatus.java
new file mode 100644
index 00000000..b4d9fe7e
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/NotificationStatus.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum NotificationStatus { PENDING, DELIVERED, FAILED }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/RouteMetric.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/RouteMetric.java
new file mode 100644
index 00000000..336d8019
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/RouteMetric.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum RouteMetric { ERROR_RATE, P95_LATENCY_MS, P99_LATENCY_MS, THROUGHPUT, ERROR_COUNT }
diff --git a/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/TargetKind.java b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/TargetKind.java
new file mode 100644
index 00000000..2f7c7a7b
--- /dev/null
+++ b/cameleer-server-core/src/main/java/com/cameleer/server/core/alerting/TargetKind.java
@@ -0,0 +1,3 @@
+package com.cameleer.server.core.alerting;
+
+public enum TargetKind { USER, GROUP, ROLE }
diff --git a/cameleer-server-core/src/test/java/com/cameleer/server/core/alerting/AlertScopeTest.java b/cameleer-server-core/src/test/java/com/cameleer/server/core/alerting/AlertScopeTest.java
new file mode 100644
index 00000000..5713a18a
--- /dev/null
+++ b/cameleer-server-core/src/test/java/com/cameleer/server/core/alerting/AlertScopeTest.java
@@ -0,0 +1,33 @@
+package com.cameleer.server.core.alerting;
+
+import org.junit.jupiter.api.Test;
+import static org.assertj.core.api.Assertions.assertThat;
+
+class AlertScopeTest {
+
+    @Test
+    void allFieldsNullIsEnvWide() {
+        var s = new AlertScope(null, null, null);
+        assertThat(s.isEnvWide()).isTrue();
+    }
+
+    @Test
+    void appScoped() {
+        var s = new AlertScope("orders", null, null);
+        assertThat(s.isEnvWide()).isFalse();
+        assertThat(s.appSlug()).isEqualTo("orders");
+    }
+
+    @Test
+    void enumsHaveExpectedValues() {
+        assertThat(AlertSeverity.values()).containsExactly(
+            AlertSeverity.CRITICAL, AlertSeverity.WARNING, AlertSeverity.INFO);
+        assertThat(AlertState.values()).containsExactly(
+            AlertState.PENDING, AlertState.FIRING, AlertState.ACKNOWLEDGED, AlertState.RESOLVED);
+        assertThat(ConditionKind.values()).hasSize(6);
+        assertThat(TargetKind.values()).containsExactly(
+            TargetKind.USER, TargetKind.GROUP, TargetKind.ROLE);
+        assertThat(NotificationStatus.values()).containsExactly(
+            NotificationStatus.PENDING, NotificationStatus.DELIVERED, NotificationStatus.FAILED);
+    }
+}