diff --git a/scripts/lib/optional-bundled-clusters-types.d.ts b/scripts/lib/optional-bundled-clusters-types.d.ts
index 8deff6cad4e..0b8633423a2 100644
--- a/scripts/lib/optional-bundled-clusters-types.d.ts
+++ b/scripts/lib/optional-bundled-clusters-types.d.ts
@@ -1,10 +1,4 @@
-export const optionalBundledClusters: string[];
 export const optionalBundledClusterSet: Set<string>;
-export const OPTIONAL_BUNDLED_BUILD_ENV: "OPENCLAW_INCLUDE_OPTIONAL_BUNDLED";
-export function isOptionalBundledCluster(cluster: string): boolean;
-export function shouldIncludeOptionalBundledClusters(env?: NodeJS.ProcessEnv): boolean;
-export function hasReleasedBundledInstall(packageJson: unknown): boolean;
-export function isExplicitlyDownloadablePlugin(packageJson: unknown): boolean;
 export function shouldBuildBundledCluster(
   cluster: string,
   env?: NodeJS.ProcessEnv,
diff --git a/scripts/lib/optional-bundled-clusters.mjs b/scripts/lib/optional-bundled-clusters.mjs
index 95c4c6d57dc..df5a06f7cdd 100644
--- a/scripts/lib/optional-bundled-clusters.mjs
+++ b/scripts/lib/optional-bundled-clusters.mjs
@@ -1,4 +1,4 @@
-export const optionalBundledClusters = [
+const optionalBundledClusters = [
   "acpx",
   "diagnostics-otel",
   "diffs",
@@ -16,26 +16,26 @@ export const optionalBundledClusters = [
 
 export const optionalBundledClusterSet = new Set(optionalBundledClusters);
 
-export const OPTIONAL_BUNDLED_BUILD_ENV = "OPENCLAW_INCLUDE_OPTIONAL_BUNDLED";
+const OPTIONAL_BUNDLED_BUILD_ENV = "OPENCLAW_INCLUDE_OPTIONAL_BUNDLED";
 
-export function isOptionalBundledCluster(cluster) {
+function isOptionalBundledCluster(cluster) {
   return optionalBundledClusterSet.has(cluster);
 }
 
-export function shouldIncludeOptionalBundledClusters(env = process.env) {
+function shouldIncludeOptionalBundledClusters(env = process.env) {
   // Release artifacts should preserve the last shipped upgrade surface by
   // default. Specific size-sensitive lanes can still opt out explicitly.
   return env[OPTIONAL_BUNDLED_BUILD_ENV] !== "0";
 }
 
-export function hasReleasedBundledInstall(packageJson) {
+function hasReleasedBundledInstall(packageJson) {
   return (
     typeof packageJson?.openclaw?.install?.npmSpec === "string" &&
     packageJson.openclaw.install.npmSpec.trim().length > 0
   );
 }
 
-export function isExplicitlyDownloadablePlugin(packageJson) {
+function isExplicitlyDownloadablePlugin(packageJson) {
   return packageJson?.openclaw?.bundle?.includeInCore === false;
 }