diff --git a/scripts/check-changed.mjs b/scripts/check-changed.mjs
index 6bfdebfb0cb..d855babe5b8 100644
--- a/scripts/check-changed.mjs
+++ b/scripts/check-changed.mjs
@@ -145,9 +145,9 @@ export async function runChangedCheck(result, options = {}) {
     }
   } else if (plan.runChangedTestsBroad) {
     const testArgs = options.explicitPaths
-      ? ["scripts/test-projects.mjs"]
-      : ["scripts/test-projects.mjs", "--changed", options.base ?? "origin/main"];
-    const status = await runNode(
+      ? ["test"]
+      : ["test", "--changed", options.base ?? "origin/main"];
+    const status = await runPnpm(
       {
         name: options.explicitPaths ? "tests all" : "tests changed broad",
         args: testArgs,
@@ -159,10 +159,10 @@ export async function runChangedCheck(result, options = {}) {
       return status;
     }
   } else if (plan.testTargets.length > 0) {
-    const status = await runNode(
+    const status = await runPnpm(
       {
         name: "tests changed",
-        args: ["scripts/test-projects.mjs", ...plan.testTargets],
+        args: ["test", ...plan.testTargets],
       },
       timings,
     );
@@ -209,10 +209,6 @@ async function runPnpm(command, timings) {
   return await runCommand({ ...command, bin: "pnpm" }, timings);
 }
 
-async function runNode(command, timings) {
-  return await runCommand({ ...command, bin: process.execPath }, timings);
-}
-
 async function runCommand(command, timings) {
   const startedAt = performance.now();
   console.error(`\n[check:changed] ${command.name}`);
diff --git a/scripts/run-vitest.mjs b/scripts/run-vitest.mjs
index 5006f3abe4f..bc3645cc3c0 100644
--- a/scripts/run-vitest.mjs
+++ b/scripts/run-vitest.mjs
@@ -180,7 +180,13 @@ export function forwardVitestOutput(stream, target, shouldSuppressLine = () => f
   });
 }
 
-export function spawnWatchedVitestProcess({ pnpmArgs, spawnParams, env, label }) {
+export function spawnWatchedVitestProcess({
+  pnpmArgs,
+  spawnParams,
+  env,
+  label,
+  onNoOutputTimeout,
+}) {
   const child = spawnVitestProcess({
     pnpmArgs,
     spawnParams,
@@ -194,6 +200,7 @@ export function spawnWatchedVitestProcess({ pnpmArgs, spawnParams, env, label })
       console.error(message);
     },
     onTimeout: () => {
+      onNoOutputTimeout?.();
       forwardSignalToVitestProcessGroup({
         child,
         signal: "SIGTERM",
diff --git a/scripts/test-projects.mjs b/scripts/test-projects.mjs
index 4bc0f675d84..459166cd8de 100644
--- a/scripts/test-projects.mjs
+++ b/scripts/test-projects.mjs
@@ -189,11 +189,15 @@ function runVitestSpec(spec) {
   if (spec.includeFilePath && spec.includePatterns) {
     writeVitestIncludeFile(spec.includeFilePath, spec.includePatterns);
   }
+  let noOutputTimedOut = false;
   return new Promise((resolve, reject) => {
     const { child, teardown } = spawnWatchedVitestProcess({
       pnpmArgs: spec.pnpmArgs,
       env: spec.env,
       label: spec.config,
+      onNoOutputTimeout: () => {
+        noOutputTimedOut = true;
+      },
       spawnParams: {
         cwd: process.cwd(),
         ...resolveVitestSpawnParams(spec.env),
@@ -203,7 +207,7 @@ function runVitestSpec(spec) {
     child.on("exit", (code, signal) => {
       teardown();
       cleanupVitestRunSpec(spec);
-      resolve({ code: code ?? 1, signal });
+      resolve({ code: code ?? (signal ? 143 : 1), noOutputTimedOut, signal });
     });
 
     child.on("error", (error) => {
@@ -231,8 +235,21 @@ function applyDefaultParallelVitestWorkerBudget(specs, env) {
 async function runLoggedVitestSpec(spec) {
   console.error(`[test] starting ${spec.config}`);
   const startedAt = performance.now();
-  const result = await runVitestSpec(spec);
+  let result = await runVitestSpec(spec);
+  if (result.noOutputTimedOut && !spec.watchMode) {
+    console.error(`[test] retrying ${spec.config} after no-output timeout`);
+    result = await runVitestSpec(spec);
+  }
   const durationMs = performance.now() - startedAt;
+  if (result.noOutputTimedOut && result.signal) {
+    console.error(`[test] ${spec.config} exceeded no-output timeout`);
+    return {
+      ...result,
+      code: result.code || 143,
+      signal: null,
+      timing: null,
+    };
+  }
   if (result.signal) {
     console.error(`[test] ${spec.config} exited by signal ${result.signal}`);
     releaseLockOnce();
diff --git a/src/config/config.pruning-defaults.test.ts b/src/config/config.pruning-defaults.test.ts
index a5c7922ff4c..896b31dd3ed 100644
--- a/src/config/config.pruning-defaults.test.ts
+++ b/src/config/config.pruning-defaults.test.ts
@@ -1,4 +1,6 @@
-import { describe, expect, it } from "vitest";
+import path from "node:path";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { clearBundledProviderPolicySurfaceCache } from "../plugins/provider-public-artifacts.js";
 import type { OpenClawConfig } from "./config.js";
 import { applyProviderConfigDefaultsForConfig } from "./provider-policy.js";
 
@@ -13,6 +15,19 @@ function applyAnthropicDefaultsForTest(config: OpenClawConfig) {
 }
 
 describe("config pruning defaults", () => {
+  beforeEach(() => {
+    clearBundledProviderPolicySurfaceCache();
+    vi.stubEnv(
+      "OPENCLAW_BUNDLED_PLUGINS_DIR",
+      path.resolve(import.meta.dirname, "../../extensions"),
+    );
+  });
+
+  afterEach(() => {
+    vi.unstubAllEnvs();
+    clearBundledProviderPolicySurfaceCache();
+  });
+
   it("does not enable contextPruning by default", () => {
     const cfg = applyAnthropicDefaultsForTest({ agents: { defaults: {} } });
 
diff --git a/src/config/model-alias-defaults.test.ts b/src/config/model-alias-defaults.test.ts
index 4386163056e..36a90ae069a 100644
--- a/src/config/model-alias-defaults.test.ts
+++ b/src/config/model-alias-defaults.test.ts
@@ -1,9 +1,24 @@
-import { describe, expect, it } from "vitest";
+import path from "node:path";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { DEFAULT_CONTEXT_TOKENS } from "../agents/defaults.js";
+import { clearBundledProviderPolicySurfaceCache } from "../plugins/provider-public-artifacts.js";
 import { applyModelDefaults } from "./defaults.js";
 import type { OpenClawConfig } from "./types.js";
 
 describe("applyModelDefaults", () => {
+  beforeEach(() => {
+    clearBundledProviderPolicySurfaceCache();
+    vi.stubEnv(
+      "OPENCLAW_BUNDLED_PLUGINS_DIR",
+      path.resolve(import.meta.dirname, "../../extensions"),
+    );
+  });
+
+  afterEach(() => {
+    vi.unstubAllEnvs();
+    clearBundledProviderPolicySurfaceCache();
+  });
+
   function buildProxyProviderConfig(overrides?: { contextWindow?: number; maxTokens?: number }) {
     return {
       models: {
diff --git a/test/extension-test-boundary.test.ts b/test/extension-test-boundary.test.ts
index 466a5dac765..2c9dd653d3f 100644
--- a/test/extension-test-boundary.test.ts
+++ b/test/extension-test-boundary.test.ts
@@ -8,6 +8,8 @@ const repoRoot = path.resolve(import.meta.dirname, "..");
 const ALLOWED_EXTENSION_PUBLIC_SURFACE_BASENAMES = new Set(
   GUARDED_EXTENSION_PUBLIC_SURFACE_BASENAMES,
 );
+const ROOTDIR_BOUNDARY_CANARY_RE =
+  /(^|\/)__rootdir_boundary_canary__\.(?:[cm]?ts|[cm]?js|tsx|jsx)$/u;
 
 function walk(dir: string, entries: string[] = []): string[] {
   for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
@@ -40,7 +42,11 @@ function walkCode(dir: string, entries: string[] = []): string[] {
     if (!entry.name.endsWith(".ts") && !entry.name.endsWith(".tsx")) {
       continue;
     }
-    entries.push(path.relative(repoRoot, fullPath).replaceAll(path.sep, "/"));
+    const relativePath = path.relative(repoRoot, fullPath).replaceAll(path.sep, "/");
+    if (ROOTDIR_BOUNDARY_CANARY_RE.test(relativePath)) {
+      continue;
+    }
+    entries.push(relativePath);
   }
   return entries;
 }
diff --git a/test/vitest/vitest.extension-telegram.config.ts b/test/vitest/vitest.extension-telegram.config.ts
index 470f8d2d569..20c36ca04a6 100644
--- a/test/vitest/vitest.extension-telegram.config.ts
+++ b/test/vitest/vitest.extension-telegram.config.ts
@@ -17,6 +17,7 @@ export function createExtensionTelegramVitestConfig(
     {
       dir: "extensions",
       env,
+      fileParallelism: false,
       name: "extension-telegram",
       passWithNoTests: true,
       setupFiles: ["test/setup.extensions.ts"],