diff --git a/scripts/postinstall-bundled-plugins.mjs b/scripts/postinstall-bundled-plugins.mjs
index 841affc1b2a..b950947bb04 100644
--- a/scripts/postinstall-bundled-plugins.mjs
+++ b/scripts/postinstall-bundled-plugins.mjs
@@ -164,12 +164,6 @@ function assertSafeInstalledDistPath(relativePath, params) {
   return candidatePath;
 }
 
-function isStagedRuntimeDependencyPath(relativePath) {
-  return /^dist\/extensions\/[^/]+\/(?:node_modules|\.openclaw-install-stage(?:-[^/]+)?)(?:\/|$)/u.test(
-    normalizeRelativePath(relativePath),
-  );
-}
-
 function listInstalledDistFiles(params = {}) {
   const readDir = params.readdirSync ?? readdirSync;
   const distRoot = resolveInstalledDistRoot(params);
@@ -184,10 +178,6 @@ function listInstalledDistFiles(params = {}) {
     if (!currentDir) {
       continue;
     }
-    const relativeCurrentDir = normalizeRelativePath(relative(packageRoot, currentDir));
-    if (isStagedRuntimeDependencyPath(relativeCurrentDir)) {
-      continue;
-    }
     for (const entry of readDir(currentDir, { withFileTypes: true })) {
       const entryPath = join(currentDir, entry.name);
       if (entry.isSymbolicLink()) {
@@ -223,10 +213,6 @@ function pruneEmptyDistDirectories(params = {}) {
   const pathLstat = params.lstatSync ?? lstatSync;
 
   function prune(currentDir) {
-    const relativeCurrentDir = normalizeRelativePath(relative(packageRoot, currentDir));
-    if (isStagedRuntimeDependencyPath(relativeCurrentDir)) {
-      return;
-    }
     for (const entry of readDir(currentDir, { withFileTypes: true })) {
       if (entry.isSymbolicLink()) {
         throw new Error(
@@ -261,6 +247,57 @@ function pruneEmptyDistDirectories(params = {}) {
   prune(distRoot.distDir);
 }
 
+function isLegacyInstalledPluginDependencyDirName(name) {
+  return name === "node_modules" || /^\.openclaw-install-stage(?:-[^/]+)?$/iu.test(name);
+}
+
+function pruneLegacyInstalledPluginDependencyDirs(params) {
+  const readDir = params.readdirSync ?? readdirSync;
+  const removePath = params.rmSync ?? rmSync;
+  const packageRoot = params.packageRoot ?? DEFAULT_PACKAGE_ROOT;
+  const extensionsDir = join(packageRoot, "dist", "extensions");
+  const removed = [];
+  let pluginEntries;
+  try {
+    pluginEntries = readDir(extensionsDir, { withFileTypes: true });
+  } catch {
+    return removed;
+  }
+
+  for (const pluginEntry of pluginEntries) {
+    if (!pluginEntry.isDirectory() || pluginEntry.isSymbolicLink()) {
+      continue;
+    }
+    const pluginDir = join(extensionsDir, pluginEntry.name);
+    let pluginChildren;
+    try {
+      pluginChildren = readDir(pluginDir, { withFileTypes: true });
+    } catch {
+      continue;
+    }
+    for (const childEntry of pluginChildren) {
+      if (!isLegacyInstalledPluginDependencyDirName(childEntry.name)) {
+        continue;
+      }
+      const safePluginDir = assertSafeInstalledDistPath(
+        normalizeRelativePath(relative(packageRoot, pluginDir)),
+        {
+          packageRoot,
+          distDirReal: params.distDirReal,
+          realpathSync: params.realpathSync,
+        },
+      );
+      const relativePath = normalizeRelativePath(
+        relative(packageRoot, join(pluginDir, childEntry.name)),
+      );
+      removePath(join(safePluginDir, childEntry.name), { recursive: true, force: true });
+      removed.push(relativePath);
+    }
+  }
+
+  return removed;
+}
+
 const JS_DIST_FILE_RE = /^dist\/.*\.(?:cjs|js|mjs)$/u;
 
 function stripSpecifierSuffix(value) {
@@ -400,6 +437,13 @@ export function pruneInstalledPackageDist(params = {}) {
   if (distRoot === null) {
     return [];
   }
+  const removedLegacyDependencyDirs = pruneLegacyInstalledPluginDependencyDirs({
+    packageRoot,
+    distDirReal: distRoot.distDirReal,
+    realpathSync: params.realpathSync,
+    readdirSync: params.readdirSync,
+    rmSync: params.rmSync,
+  });
   let expectedFiles = params.expectedFiles ?? null;
   if (expectedFiles === null) {
     try {
@@ -444,6 +488,11 @@ export function pruneInstalledPackageDist(params = {}) {
   if (removed.length > 0) {
     log.log(`[postinstall] pruned stale dist files: ${removed.join(", ")}`);
   }
+  if (removedLegacyDependencyDirs.length > 0) {
+    log.log(
+      `[postinstall] pruned legacy plugin dependency dirs: ${removedLegacyDependencyDirs.join(", ")}`,
+    );
+  }
   return removed;
 }
 
diff --git a/src/channels/plugins/bundled.shape-guard.test.ts b/src/channels/plugins/bundled.shape-guard.test.ts
index 8959aa39343..b5fe7d80916 100644
--- a/src/channels/plugins/bundled.shape-guard.test.ts
+++ b/src/channels/plugins/bundled.shape-guard.test.ts
@@ -739,25 +739,6 @@ describe("bundled channel entry shape guards", () => {
     expect(offenders).toEqual([]);
   });
 
-  it("keeps setup-only plugin barrels off legacy staged runtime-dependency metadata", () => {
-    const offenders: string[] = [];
-
-    for (const extensionDir of bundledPluginRoots) {
-      const packageJsonPath = path.join(extensionDir, "package.json");
-      if (!fs.existsSync(packageJsonPath)) {
-        continue;
-      }
-      const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, "utf8")) as {
-        openclaw?: { bundle?: Record<string, unknown> };
-      };
-      if (packageJson.openclaw?.bundle?.stageRuntimeDependencies === true) {
-        offenders.push(path.relative(process.cwd(), packageJsonPath));
-      }
-    }
-
-    expect(offenders).toEqual([]);
-  });
-
   it("keeps bundled channel entrypoints free of static src imports", () => {
     const offenders = collectBundledChannelEntrypointOffenders(bundledPluginRoots, (source) =>
       /^(?:import|export)\s.+["']\.\/src\//mu.test(source),
diff --git a/test/scripts/postinstall-bundled-plugins.test.ts b/test/scripts/postinstall-bundled-plugins.test.ts
index bfe4af5a2a9..97d90b482b8 100644
--- a/test/scripts/postinstall-bundled-plugins.test.ts
+++ b/test/scripts/postinstall-bundled-plugins.test.ts
@@ -61,27 +61,6 @@ describe("bundled plugin postinstall", () => {
     ).toBe(true);
   });
 
-  it("does not install bundled plugin package deps outside of source checkouts by default", async () => {
-    const extensionsDir = await createExtensionsDir();
-    const packageRoot = path.dirname(path.dirname(extensionsDir));
-    await writePluginPackage(extensionsDir, "acpx", {
-      dependencies: {
-        acpx: "0.4.1",
-      },
-    });
-    const spawnSync = vi.fn();
-
-    runBundledPluginPostinstall({
-      env: { HOME: "/tmp/home" },
-      extensionsDir,
-      packageRoot,
-      spawnSync,
-      log: { log: vi.fn(), warn: vi.fn() },
-    });
-
-    expect(spawnSync).not.toHaveBeenCalled();
-  });
-
   it("prunes Node versioned compile cache dirs during package postinstall", () => {
     const configuredBase = path.join("/tmp", "openclaw-cache");
     const defaultBase = path.join(tmpdir(), "node-compile-cache");
@@ -173,19 +152,15 @@ describe("bundled plugin postinstall", () => {
       path.join(extensionsDir, "acpx", "node_modules", "acpx", "package.json"),
       JSON.stringify({ name: "acpx", version: "0.4.1" }),
     );
-    const spawnSync = vi.fn();
-
     runBundledPluginPostinstall({
       env: { HOME: "/tmp/home" },
       packageRoot,
-      spawnSync,
       log: { log: vi.fn(), warn: vi.fn() },
     });
 
     await expect(fs.stat(path.join(extensionsDir, "acpx", "node_modules"))).rejects.toMatchObject({
       code: "ENOENT",
     });
-    expect(spawnSync).not.toHaveBeenCalled();
   });
 
   it("keeps source-checkout prune non-fatal", async () => {
@@ -419,7 +394,6 @@ describe("bundled plugin postinstall", () => {
 
     runBundledPluginPostinstall({
       packageRoot,
-      spawnSync: vi.fn(),
       log: { log: vi.fn(), warn: vi.fn() },
     });
 
@@ -529,11 +503,20 @@ describe("bundled plugin postinstall", () => {
     ).toThrow("unsafe dist entry: dist/escape");
   });
 
-  it("ignores staged bundled plugin node_modules when pruning packaged dist", async () => {
+  it("prunes stale bundled plugin dependency debris from packaged dist", async () => {
     const packageRoot = await createTempDirAsync("openclaw-packaged-install-dist-prune-");
     const staleFile = path.join(packageRoot, "dist", "stale-runtime.js");
     const packageJson = path.join(packageRoot, "dist", "extensions", "slack", "package.json");
     const binDir = path.join(packageRoot, "dist", "extensions", "slack", "node_modules", ".bin");
+    const dependencyFile = path.join(
+      packageRoot,
+      "dist",
+      "extensions",
+      "slack",
+      "node_modules",
+      "typebox",
+      "package.json",
+    );
     const installStageFile = path.join(
       packageRoot,
       "dist",
@@ -561,10 +544,12 @@ describe("bundled plugin postinstall", () => {
     await fs.mkdir(path.dirname(staleFile), { recursive: true });
     await fs.mkdir(path.dirname(packageJson), { recursive: true });
     await fs.mkdir(binDir, { recursive: true });
+    await fs.mkdir(path.dirname(dependencyFile), { recursive: true });
     await fs.mkdir(path.dirname(installStageFile), { recursive: true });
     await fs.mkdir(path.dirname(retryInstallStageFile), { recursive: true });
     await fs.writeFile(staleFile, "export {};\n");
     await fs.writeFile(packageJson, "{}\n");
+    await fs.writeFile(dependencyFile, "{}\n");
     await fs.writeFile(installStageFile, "export {};\n");
     await fs.writeFile(retryInstallStageFile, "export {};\n");
     await fs.symlink("../fxparser/bin.js", path.join(binDir, "fxparser"));
@@ -576,8 +561,15 @@ describe("bundled plugin postinstall", () => {
         log: { log: vi.fn(), warn: vi.fn() },
       }),
     ).toEqual(["dist/stale-runtime.js"]);
-    await expect(fs.stat(installStageFile)).resolves.toBeDefined();
-    await expect(fs.stat(retryInstallStageFile)).resolves.toBeDefined();
+    await expect(
+      fs.stat(path.join(packageRoot, "dist", "extensions", "slack", "node_modules")),
+    ).rejects.toMatchObject({ code: "ENOENT" });
+    await expect(fs.stat(path.dirname(installStageFile))).rejects.toMatchObject({
+      code: "ENOENT",
+    });
+    await expect(fs.stat(path.dirname(retryInstallStageFile))).rejects.toMatchObject({
+      code: "ENOENT",
+    });
   });
 
   it("unlinks stale files instead of recursive pruning them", () => {
@@ -614,32 +606,6 @@ describe("bundled plugin postinstall", () => {
     expect(unlinkSync).toHaveBeenCalledWith("/pkg/dist/stale.js");
   });
 
-  it("skips reinstall when the bundled sentinel package already exists", async () => {
-    const extensionsDir = await createExtensionsDir();
-    const packageRoot = path.dirname(path.dirname(extensionsDir));
-    await writePluginPackage(extensionsDir, "acpx", {
-      dependencies: {
-        acpx: "0.4.1",
-      },
-    });
-    await fs.mkdir(path.join(packageRoot, "node_modules", "acpx"), { recursive: true });
-    await fs.writeFile(
-      path.join(packageRoot, "node_modules", "acpx", "package.json"),
-      "{}\n",
-      "utf8",
-    );
-    const spawnSync = vi.fn();
-
-    runBundledPluginPostinstall({
-      env: { npm_config_global: "true" },
-      extensionsDir,
-      packageRoot,
-      spawnSync,
-    });
-
-    expect(spawnSync).not.toHaveBeenCalled();
-  });
-
   it("prunes only bundled plugin package node_modules in source checkouts", async () => {
     const packageRoot = await createTempDirAsync("openclaw-source-prune-");
     const extensionsDir = path.join(packageRoot, "extensions");