diff --git a/src/infra/vitest-config.test.ts b/src/infra/vitest-config.test.ts
index 06340534114..8749ce17d84 100644
--- a/src/infra/vitest-config.test.ts
+++ b/src/infra/vitest-config.test.ts
@@ -219,6 +219,29 @@ describe("base vitest config", () => {
       /(?:^|\/)test\/non-isolated-runner\.ts$/u,
     );
   });
+
+  it("classifies Crabbox shared dependencies as external dependencies", () => {
+    expect(baseConfig.test?.deps?.moduleDirectories).toEqual([
+      "/node_modules/",
+      "/openclaw-pnpm-node-modules/",
+    ]);
+
+    const externalPatterns = baseConfig.test?.server?.deps?.external ?? [];
+    expect(
+      externalPatterns.some(
+        (pattern) =>
+          pattern instanceof RegExp &&
+          pattern.test("/tmp/openclaw-pnpm-node-modules/some-dep/dist/index.mjs"),
+      ),
+    ).toBe(true);
+    expect(
+      externalPatterns.some(
+        (pattern) =>
+          pattern instanceof RegExp &&
+          pattern.test("/tmp/openclaw-pnpm-node-modules/vite/dist/client/env.mjs"),
+      ),
+    ).toBe(false);
+  });
 });
 
 describe("test scripts", () => {
diff --git a/test/vitest/vitest.shared.config.ts b/test/vitest/vitest.shared.config.ts
index e8e08ea89f3..22e3f57cf50 100644
--- a/test/vitest/vitest.shared.config.ts
+++ b/test/vitest/vitest.shared.config.ts
@@ -138,6 +138,10 @@ const workerConfig = resolveSharedVitestWorkerConfig({
   isWindows,
   localScheduling,
 });
+const dependencyModuleDirectories = ["/node_modules/", "/openclaw-pnpm-node-modules/"];
+const dependencyExternalPatterns = [
+  /\/openclaw-pnpm-node-modules\/(?!.*\/?vite\w*\/dist\/client\/env\.mjs$).*\.(?:cjs\.js|mjs)$/u,
+];
 const sourcePluginSdkSubpaths = [
   ...new Set([...pluginSdkSubpaths, ...privateLocalOnlyPluginSdkSubpaths]),
 ].toSorted((left, right) => left.localeCompare(right));
@@ -436,6 +440,14 @@ export const sharedVitestConfig = {
     runner: nonIsolatedRunnerPath,
     maxWorkers: workerConfig.maxWorkers,
     fileParallelism: workerConfig.fileParallelism,
+    deps: {
+      moduleDirectories: dependencyModuleDirectories,
+    },
+    server: {
+      deps: {
+        external: dependencyExternalPatterns,
+      },
+    },
     forceRerunTriggers: [
       "package.json",
       "pnpm-lock.yaml",