diff --git a/tools/publish_release.sh b/tools/publish_release.sh
new file mode 100644
index 0000000000..c58646dd18
--- /dev/null
+++ b/tools/publish_release.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# Copyright 2026 "Google LLC"
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# bash tools/publish_release.sh <release_name> <release_tag>
+# bash tools/publish_release.sh
+
+set -euo pipefail
+
+BUCKET_PATH="gs://oss-exit-gate-prod-projects-bucket/cluster-toolkit/githubreleases/manifests/rel.json"
+
+if [[ $# -eq 2 ]]; then
+	RELEASE_NAME="$1"
+	RELEASE_TAG="$2"
+
+elif [[ $# -eq 0 ]]; then
+	echo "Fetching latest tags from origin..."
+
+	if ! git fetch origin --tags; then
+		echo "ERROR: Failed to fetch tags from remote repository." >&2
+		exit 1
+	fi
+
+	RELEASE_TAG="$(git tag --sort=-v:refname | head -n 1)"
+	RELEASE_NAME="${RELEASE_TAG}"
+
+else
+	echo "ERROR: Invalid number of arguments." >&2
+	echo "Usage: $0 [<release_name> <release_tag>]" >&2
+	exit 1
+fi
+
+if [[ -z "${RELEASE_TAG}" || -z "${RELEASE_NAME}" ]]; then
+	echo "ERROR: Release tag and name cannot be empty." >&2
+	exit 1
+fi
+
+echo "Latest cluster-toolkit version detected:"
+echo "Release Name : ${RELEASE_NAME}"
+echo "Release Tag  : ${RELEASE_TAG}"
+
+TMP_FILE="$(mktemp)"
+trap 'rm -f "${TMP_FILE}"' EXIT
+
+cat >"${TMP_FILE}" <<EOF
+{
+  "publish_all": true,
+  "registry_config": {
+    "github_releases": {
+      "name": "${RELEASE_NAME}",
+      "tag": "${RELEASE_TAG}"
+    }
+  }
+}
+EOF
+
+echo "Uploading release manifest to GCS..."
+
+if ! gcloud storage cp "${TMP_FILE}" "${BUCKET_PATH}"; then
+	echo "ERROR: Failed to upload release manifest to bucket."
+	exit 1
+fi
+
+echo "Release publish process finished successfully."