diff --git a/modules/l1/l1-cloudwatch/manifest.yaml b/modules/l1/l1-cloudwatch/manifest.yaml
new file mode 100644
index 0000000..0d4b7bc
--- /dev/null
+++ b/modules/l1/l1-cloudwatch/manifest.yaml
@@ -0,0 +1,10 @@
+name: l1-cloudwatch
+kind: l1
+description: Observability primitive
+inputs:
+  log_group_name:
+    description: Name of the CloudWatch log group
+    type: string
+  metric_namespace:
+    description: Namespace under which custom metrics are emitted
+    type: string
\ No newline at end of file
diff --git a/modules/l1/l1-cloudwatch/mock_apply.sh b/modules/l1/l1-cloudwatch/mock_apply.sh
new file mode 100755
index 0000000..d38f449
--- /dev/null
+++ b/modules/l1/l1-cloudwatch/mock_apply.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -euo pipefail
+echo "[L1: l1-cloudwatch] applying..."
+sleep 1
+echo "[L1: l1-cloudwatch] OK"
+exit 0
\ No newline at end of file