diff --git a/.github/workflows/update-ref-docs.yaml b/.github/workflows/update-ref-docs.yaml
index 56790074..ad186279 100644
--- a/.github/workflows/update-ref-docs.yaml
+++ b/.github/workflows/update-ref-docs.yaml
@@ -1,13 +1,15 @@
 name: Update Reference Documentation
 
 on:
-  workflow_dispatch:  # Allow manual triggers for now
-  # Later we can add:
-  # push:
-  #   paths:
-  #     - 'api/v1alpha2/**'
-  #   branches:
-  #     - main
+  workflow_dispatch:  # Allow manual triggers
+  schedule:
+    # Nightly at 06:30 UTC: regenerate API/Helm docs from the latest kagent/kmcp main so docs don't drift from code.
+    - cron: '30 6 * * *'
+
+# Queue overlapping runs (e.g. nightly cron + a manual dispatch) so they don't force-push the same PR branch concurrently.
+concurrency:
+  group: update-ref-docs
+  cancel-in-progress: false
 
 jobs:
   generate-api-docs:
@@ -366,7 +368,6 @@ jobs:
             
             This PR was automatically generated by the [**Update Reference documentation** workflow](https://github.com/${{ github.repository_owner }}/website/actions/workflows/update-ref-docs.yaml).
           branch: api-gen-update
-          branch-suffix: timestamp
           delete-branch: true
           base: main
           labels: |