diff --git a/ansible/inventory/host_vars/Railiance01.yml b/ansible/inventory/host_vars/Railiance01.yml
new file mode 100644
index 0000000..f5c0cf7
--- /dev/null
+++ b/ansible/inventory/host_vars/Railiance01.yml
@@ -0,0 +1,5 @@
+# RCLK-WP-0005 / RAIL-HO-WP-0013: scoped operator-requested host baseline.
+railiance_clock_enabled: true
+railiance_clock_manage_timesyncd: true
+railiance_clock_authority_enabled: false
+railiance_clock_admission_ref: operator-clock-infrastructure-request-2026-09-15
diff --git a/ansible/roles/railiance_clock/tasks/main.yaml b/ansible/roles/railiance_clock/tasks/main.yaml
index 8c01292..eb9e2c4 100644
--- a/ansible/roles/railiance_clock/tasks/main.yaml
+++ b/ansible/roles/railiance_clock/tasks/main.yaml
@@ -5,9 +5,9 @@
     - name: Require supported host and concrete admission
       ansible.builtin.assert:
         that:
-          - ansible_system == 'Linux'
-          - ansible_distribution == 'Ubuntu'
-          - ansible_distribution_major_version == '24'
+          - ansible_facts["system"] == 'Linux'
+          - ansible_facts["distribution"] == 'Ubuntu'
+          - ansible_facts["distribution_major_version"] == '24'
           - railiance_clock_admission_ref | length > 0
           - railiance_clock_upstreams | length > 0
           - railiance_clock_host_drift_ppm | int >= 500