diff --git a/packages/memory-host-sdk/src/host/internal.test.ts b/packages/memory-host-sdk/src/host/internal.test.ts
index a969aaf0cf8..45adf405867 100644
--- a/packages/memory-host-sdk/src/host/internal.test.ts
+++ b/packages/memory-host-sdk/src/host/internal.test.ts
@@ -1,7 +1,7 @@
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
-import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { afterAll, beforeAll, beforeEach, describe, expect, it } from "vitest";
 import {
   buildMultimodalChunkForIndexing,
   buildFileEntry,
@@ -16,13 +16,24 @@ import {
   type MemoryMultimodalSettings,
 } from "./multimodal.js";
 
+let sharedTempRoot = "";
+let sharedTempId = 0;
+
+beforeAll(async () => {
+  sharedTempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "memory-host-sdk-tests-"));
+});
+
+afterAll(async () => {
+  if (sharedTempRoot) {
+    await fs.rm(sharedTempRoot, { recursive: true, force: true });
+  }
+});
+
 function setupTempDirLifecycle(prefix: string): () => string {
   let tmpDir = "";
   beforeEach(async () => {
-    tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), prefix));
-  });
-  afterEach(async () => {
-    await fs.rm(tmpDir, { recursive: true, force: true });
+    tmpDir = path.join(sharedTempRoot, `${prefix}${sharedTempId++}`);
+    await fs.mkdir(tmpDir, { recursive: true });
   });
   return () => tmpDir;
 }
diff --git a/src/context-engine/context-engine.test.ts b/src/context-engine/context-engine.test.ts
index 8232b6260e5..a62b1c15cdf 100644
--- a/src/context-engine/context-engine.test.ts
+++ b/src/context-engine/context-engine.test.ts
@@ -1011,7 +1011,7 @@ describe("Bundle chunk isolation (#40096)", () => {
     const registryUrl = new URL("./registry.ts", import.meta.url).href;
     const chunks = await Promise.all(
       Array.from(
-        { length: 5 },
+        { length: 3 },
         (_, i) => import(/* @vite-ignore */ `${registryUrl}?chunk=${ts}-${i}`),
       ),
     );
diff --git a/src/entry.version-fast-path.test.ts b/src/entry.version-fast-path.test.ts
index 42f92c76dd0..673a0aef751 100644
--- a/src/entry.version-fast-path.test.ts
+++ b/src/entry.version-fast-path.test.ts
@@ -52,6 +52,10 @@ vi.mock("./infra/git-commit.js", () => ({
   resolveCommitHash: resolveCommitHashMock,
 }));
 
+vi.mock("./infra/gaxios-fetch-compat.js", () => ({
+  installGaxiosFetchCompat: vi.fn(async () => {}),
+}));
+
 vi.mock("./infra/is-main.js", () => ({
   isMainModule: isMainModuleMock,
 }));
diff --git a/src/install-sh-version.test.ts b/src/install-sh-version.test.ts
index 8e4469f154e..9eb60242bcd 100644
--- a/src/install-sh-version.test.ts
+++ b/src/install-sh-version.test.ts
@@ -21,19 +21,34 @@ printf '%s\n' '${escapedOutput}'
   return { root, cliPath };
 }
 
-function resolveVersionsFromInstaller(cliPaths: string[]): string[] {
+function resolveInstallerVersionCases(params: {
+  cliPaths: string[];
+  stdinCliPath: string;
+  stdinCwd: string;
+}): string[] {
   const installerPath = path.join(process.cwd(), "scripts", "install.sh");
+  const installerSource = fs.readFileSync(installerPath, "utf-8");
   const output = execFileSync(
     "bash",
     [
       "-lc",
       `source "${installerPath}" >/dev/null 2>&1
-for openclaw_bin in "$@"; do
+for openclaw_bin in "\${@:3}"; do
   OPENCLAW_BIN="$openclaw_bin"
   resolve_openclaw_version
-done`,
+done
+(
+  cd "$2"
+  FAKE_OPENCLAW_BIN="\${@:1:1}" bash -s <<'OPENCLAW_STDIN_INSTALLER'
+${installerSource}
+OPENCLAW_BIN="$FAKE_OPENCLAW_BIN"
+resolve_openclaw_version
+OPENCLAW_STDIN_INSTALLER
+)`,
       "openclaw-version-test",
-      ...cliPaths,
+      params.stdinCliPath,
+      params.stdinCwd,
+      ...params.cliPaths,
     ],
     {
       cwd: process.cwd(),
@@ -47,44 +62,17 @@ done`,
   return output.trimEnd().split("\n");
 }
 
-function resolveVersionFromInstallerViaStdin(cliPath: string, cwd: string): string {
-  const installerPath = path.join(process.cwd(), "scripts", "install.sh");
-  const installerSource = fs.readFileSync(installerPath, "utf-8");
-  const output = execFileSync("bash", [], {
-    cwd,
-    encoding: "utf-8",
-    input: `${installerSource}
-OPENCLAW_BIN="$FAKE_OPENCLAW_BIN"
-resolve_openclaw_version
-`,
-    env: {
-      ...process.env,
-      FAKE_OPENCLAW_BIN: cliPath,
-      OPENCLAW_INSTALL_SH_NO_RUN: "1",
-    },
-  });
-  return output.trim();
-}
-
 describe("install.sh version resolution", () => {
   afterEach(() => {
     cleanupTempDirs(tempRoots);
   });
 
-  it.runIf(process.platform !== "win32")("parses decorated and raw CLI versions", () => {
-    const decorated = withFakeCli("OpenClaw 2026.3.10 (abcdef0)");
-    const raw = withFakeCli("OpenClaw dev's build");
-
-    expect(resolveVersionsFromInstaller([decorated.cliPath, raw.cliPath])).toEqual([
-      "2026.3.10",
-      "OpenClaw dev's build",
-    ]);
-  });
-
   it.runIf(process.platform !== "win32")(
-    "does not source version helpers from cwd when installer runs via stdin",
+    "parses CLI versions and keeps stdin helpers isolated from cwd",
     () => {
-      const fixture = withFakeCli("OpenClaw 2026.3.10 (abcdef0)");
+      const decorated = withFakeCli("OpenClaw 2026.3.10 (abcdef0)");
+      const raw = withFakeCli("OpenClaw dev's build");
+      const stdinFixture = withFakeCli("OpenClaw 2026.3.10 (abcdef0)");
 
       const hostileCwd = makeTempDir(tempRoots, "openclaw-install-stdin-");
       const hostileHelper = path.join(
@@ -104,7 +92,13 @@ extract_openclaw_semver() {
         "utf-8",
       );
 
-      expect(resolveVersionFromInstallerViaStdin(fixture.cliPath, hostileCwd)).toBe("2026.3.10");
+      expect(
+        resolveInstallerVersionCases({
+          cliPaths: [decorated.cliPath, raw.cliPath],
+          stdinCliPath: stdinFixture.cliPath,
+          stdinCwd: hostileCwd,
+        }),
+      ).toEqual(["2026.3.10", "OpenClaw dev's build", "2026.3.10"]);
     },
   );
 });
diff --git a/src/memory-host-sdk/host/internal.test.ts b/src/memory-host-sdk/host/internal.test.ts
index 4a76d28864b..a68d1a98137 100644
--- a/src/memory-host-sdk/host/internal.test.ts
+++ b/src/memory-host-sdk/host/internal.test.ts
@@ -1,7 +1,7 @@
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
-import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { afterAll, beforeAll, beforeEach, describe, expect, it } from "vitest";
 import {
   buildMultimodalChunkForIndexing,
   buildFileEntry,
@@ -16,13 +16,24 @@ import {
   type MemoryMultimodalSettings,
 } from "./multimodal.js";
 
+let sharedTempRoot = "";
+let sharedTempId = 0;
+
+beforeAll(async () => {
+  sharedTempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "memory-host-sdk-tests-"));
+});
+
+afterAll(async () => {
+  if (sharedTempRoot) {
+    await fs.rm(sharedTempRoot, { recursive: true, force: true });
+  }
+});
+
 function setupTempDirLifecycle(prefix: string): () => string {
   let tmpDir = "";
   beforeEach(async () => {
-    tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), prefix));
-  });
-  afterEach(async () => {
-    await fs.rm(tmpDir, { recursive: true, force: true });
+    tmpDir = path.join(sharedTempRoot, `${prefix}${sharedTempId++}`);
+    await fs.mkdir(tmpDir, { recursive: true });
   });
   return () => tmpDir;
 }
diff --git a/src/routing/resolve-route.test.ts b/src/routing/resolve-route.test.ts
index a3c45b86ec0..d04f11f2449 100644
--- a/src/routing/resolve-route.test.ts
+++ b/src/routing/resolve-route.test.ts
@@ -1063,7 +1063,7 @@ describe("wildcard peer bindings (peer.id=*)", () => {
 
 describe("binding evaluation cache scalability", () => {
   test("does not rescan full bindings after channel/account cache rollover (#36915)", () => {
-    const bindingCount = 2_205;
+    const bindingCount = 2_001;
     const cfg: OpenClawConfig = {
       bindings: Array.from({ length: bindingCount }, (_, idx) => ({
         agentId: `agent-${idx}`,