diff --git a/scripts/lib/plugin-npm-release.ts b/scripts/lib/plugin-npm-release.ts
index 2f117581577..c540f16b484 100644
--- a/scripts/lib/plugin-npm-release.ts
+++ b/scripts/lib/plugin-npm-release.ts
@@ -250,8 +250,8 @@ export function collectPublishablePluginPackages(
   const validationErrors: string[] = [];
   const selectedExtensionIds = new Set(filters.extensionIds ?? []);
   const selectedPackageNames = new Set(filters.packageNames ?? []);
-  const hasSelectedExtensionIds = selectedExtensionIds.size > 0;
-  const hasSelectedPackageNames = selectedPackageNames.size > 0;
+  const hasSelectedExtensionIds = Array.isArray(filters.extensionIds);
+  const hasSelectedPackageNames = Array.isArray(filters.packageNames);
 
   for (const candidate of collectExtensionPackageJsonCandidates(rootDir)) {
     const { extensionId, packageDir, packageJson } = candidate;
@@ -467,8 +467,11 @@ export function collectPluginReleasePlan(params?: {
       })
     : [];
   const allPublishable = collectPublishablePluginPackages(params?.rootDir, {
-    extensionIds: params?.selectionMode === "all-publishable" ? [] : changedExtensionIds,
-    packageNames: params?.selection,
+    extensionIds:
+      params?.selectionMode === "all-publishable" || !params?.gitRange
+        ? undefined
+        : changedExtensionIds,
+    packageNames: params?.selection && params.selection.length > 0 ? params.selection : undefined,
   });
   const selectedPublishable =
     params?.selectionMode === "all-publishable"
diff --git a/scripts/plugin-npm-release-check.ts b/scripts/plugin-npm-release-check.ts
index dddc71036da..6476cb441e7 100644
--- a/scripts/plugin-npm-release-check.ts
+++ b/scripts/plugin-npm-release-check.ts
@@ -18,8 +18,11 @@ export function runPluginNpmReleaseCheck(argv: string[]) {
         })
       : [];
   const publishable = collectPublishablePluginPackages(".", {
-    extensionIds: selectionMode === "all-publishable" ? [] : changedExtensionIds,
-    packageNames: selection,
+    extensionIds:
+      selectionMode === "all-publishable" || !(baseRef && headRef)
+        ? undefined
+        : changedExtensionIds,
+    packageNames: selection.length > 0 ? selection : undefined,
   });
   const selected =
     selectionMode === "all-publishable"
diff --git a/test/plugin-npm-release.test.ts b/test/plugin-npm-release.test.ts
index feb4ef99fbb..c54adc03b6b 100644
--- a/test/plugin-npm-release.test.ts
+++ b/test/plugin-npm-release.test.ts
@@ -196,6 +196,28 @@ describe("collectPublishablePluginPackages", () => {
       }),
     ]);
   });
+
+  it("treats an explicit empty extension filter as no candidates", () => {
+    const repoDir = makeTempRepoRoot(tempDirs, "openclaw-plugin-npm-release-");
+    mkdirSync(join(repoDir, "extensions", "private-plugin"), { recursive: true });
+    writeJsonFile(join(repoDir, "extensions", "private-plugin", "package.json"), {
+      name: "@openclaw/private-plugin",
+      version: "2026.4.10-beta.1",
+      private: true,
+      openclaw: {
+        extensions: ["./index.ts"],
+        release: {
+          publishToNpm: true,
+        },
+      },
+    });
+
+    expect(
+      collectPublishablePluginPackages(repoDir, {
+        extensionIds: [],
+      }),
+    ).toEqual([]);
+  });
 });
 
 describe("resolveSelectedPublishablePluginPackages", () => {