diff --git a/extensions/discord/src/api.test.ts b/extensions/discord/src/api.test.ts
index 11d15d5f59f..f2a6d557769 100644
--- a/extensions/discord/src/api.test.ts
+++ b/extensions/discord/src/api.test.ts
@@ -1,9 +1,13 @@
-import { describe, expect, it } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import { withFetchPreconnect } from "../../../test/helpers/extensions/fetch-mock.js";
 import { fetchDiscord } from "./api.js";
 import { jsonResponse } from "./test-http-helpers.js";
 
 describe("fetchDiscord", () => {
+  beforeEach(() => {
+    vi.useRealTimers();
+  });
+
   it("formats rate limit payloads without raw JSON", async () => {
     const fetcher = withFetchPreconnect(async () =>
       jsonResponse(
diff --git a/extensions/discord/src/channel.test.ts b/extensions/discord/src/channel.test.ts
index a760883583b..68887159b88 100644
--- a/extensions/discord/src/channel.test.ts
+++ b/extensions/discord/src/channel.test.ts
@@ -1,10 +1,10 @@
-import { afterEach, describe, expect, it, vi } from "vitest";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import type { PluginRuntime } from "../../../src/plugins/runtime/types.js";
 import { createStartAccountContext } from "../../../test/helpers/extensions/start-account-context.js";
 import type { ResolvedDiscordAccount } from "./accounts.js";
-import { discordPlugin } from "./channel.js";
 import type { OpenClawConfig } from "./runtime-api.js";
-import { setDiscordRuntime } from "./runtime.js";
+let discordPlugin: typeof import("./channel.js").discordPlugin;
+let setDiscordRuntime: typeof import("./runtime.js").setDiscordRuntime;
 
 const probeDiscordMock = vi.hoisted(() => vi.fn());
 const monitorDiscordProviderMock = vi.hoisted(() => vi.fn());
@@ -75,6 +75,13 @@ afterEach(() => {
   auditDiscordChannelPermissionsMock.mockReset();
 });
 
+beforeEach(async () => {
+  vi.useRealTimers();
+  vi.resetModules();
+  ({ discordPlugin } = await import("./channel.js"));
+  ({ setDiscordRuntime } = await import("./runtime.js"));
+});
+
 describe("discordPlugin outbound", () => {
   it("forwards mediaLocalRoots to sendMessageDiscord", async () => {
     const sendMessageDiscord = vi.fn(async () => ({ messageId: "m1" }));
diff --git a/extensions/discord/src/components.test.ts b/extensions/discord/src/components.test.ts
index 74357939629..2737f19c274 100644
--- a/extensions/discord/src/components.test.ts
+++ b/extensions/discord/src/components.test.ts
@@ -1,16 +1,25 @@
 import { MessageFlags } from "discord-api-types/v10";
-import { beforeEach, describe, expect, it } from "vitest";
-import {
-  clearDiscordComponentEntries,
-  registerDiscordComponentEntries,
-  resolveDiscordComponentEntry,
-  resolveDiscordModalEntry,
-} from "./components-registry.js";
-import {
-  buildDiscordComponentMessage,
-  buildDiscordComponentMessageFlags,
-  readDiscordComponentSpec,
-} from "./components.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+let clearDiscordComponentEntries: typeof import("./components-registry.js").clearDiscordComponentEntries;
+let registerDiscordComponentEntries: typeof import("./components-registry.js").registerDiscordComponentEntries;
+let resolveDiscordComponentEntry: typeof import("./components-registry.js").resolveDiscordComponentEntry;
+let resolveDiscordModalEntry: typeof import("./components-registry.js").resolveDiscordModalEntry;
+let buildDiscordComponentMessage: typeof import("./components.js").buildDiscordComponentMessage;
+let buildDiscordComponentMessageFlags: typeof import("./components.js").buildDiscordComponentMessageFlags;
+let readDiscordComponentSpec: typeof import("./components.js").readDiscordComponentSpec;
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({
+    clearDiscordComponentEntries,
+    registerDiscordComponentEntries,
+    resolveDiscordComponentEntry,
+    resolveDiscordModalEntry,
+  } = await import("./components-registry.js"));
+  ({ buildDiscordComponentMessage, buildDiscordComponentMessageFlags, readDiscordComponentSpec } =
+    await import("./components.js"));
+});
 
 describe("discord components", () => {
   it("builds v2 containers with modal trigger", () => {
diff --git a/extensions/discord/src/monitor.test.ts b/extensions/discord/src/monitor.test.ts
index 9d06015b9de..60d76b70888 100644
--- a/extensions/discord/src/monitor.test.ts
+++ b/extensions/discord/src/monitor.test.ts
@@ -61,6 +61,11 @@ function createAutoThreadMentionContext() {
   return { guildInfo, channelConfig };
 }
 
+beforeEach(() => {
+  vi.useRealTimers();
+  readAllowFromStoreMock.mockReset().mockResolvedValue([]);
+});
+
 describe("registerDiscordListener", () => {
   class FakeListener {}
 
diff --git a/extensions/discord/src/monitor.tool-result.sends-status-replies-responseprefix.test.ts b/extensions/discord/src/monitor.tool-result.sends-status-replies-responseprefix.test.ts
index 2c2811a25a2..c9b2f0b36a6 100644
--- a/extensions/discord/src/monitor.tool-result.sends-status-replies-responseprefix.test.ts
+++ b/extensions/discord/src/monitor.tool-result.sends-status-replies-responseprefix.test.ts
@@ -1,5 +1,5 @@
 import type { Client } from "@buape/carbon";
-import { ChannelType, MessageType } from "@buape/carbon";
+import { MessageType } from "@buape/carbon";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import {
   dispatchMock,
@@ -9,13 +9,19 @@ import {
   updateLastRouteMock,
   upsertPairingRequestMock,
 } from "./monitor.tool-result.test-harness.js";
-import { createDiscordMessageHandler } from "./monitor/message-handler.js";
-import { __resetDiscordChannelInfoCacheForTest } from "./monitor/message-utils.js";
-import { createNoopThreadBindingManager } from "./monitor/thread-bindings.js";
 
 type Config = ReturnType<typeof import("../../../src/config/config.js").loadConfig>;
+let ChannelType: typeof import("@buape/carbon").ChannelType;
+let createDiscordMessageHandler: typeof import("./monitor/message-handler.js").createDiscordMessageHandler;
+let __resetDiscordChannelInfoCacheForTest: typeof import("./monitor/message-utils.js").__resetDiscordChannelInfoCacheForTest;
+let createNoopThreadBindingManager: typeof import("./monitor/thread-bindings.js").createNoopThreadBindingManager;
 
-beforeEach(() => {
+beforeEach(async () => {
+  vi.resetModules();
+  ({ ChannelType } = await import("@buape/carbon"));
+  ({ createDiscordMessageHandler } = await import("./monitor/message-handler.js"));
+  ({ __resetDiscordChannelInfoCacheForTest } = await import("./monitor/message-utils.js"));
+  ({ createNoopThreadBindingManager } = await import("./monitor/thread-bindings.js"));
   __resetDiscordChannelInfoCacheForTest();
   sendMock.mockClear().mockResolvedValue(undefined);
   updateLastRouteMock.mockClear();
diff --git a/extensions/discord/src/monitor/agent-components.wildcard.test.ts b/extensions/discord/src/monitor/agent-components.wildcard.test.ts
index 232e3c365cb..a13b5c2299e 100644
--- a/extensions/discord/src/monitor/agent-components.wildcard.test.ts
+++ b/extensions/discord/src/monitor/agent-components.wildcard.test.ts
@@ -1,14 +1,28 @@
-import { describe, expect, it } from "vitest";
-import { buildDiscordComponentCustomId, buildDiscordModalCustomId } from "../components.js";
-import {
-  createDiscordComponentButton,
-  createDiscordComponentChannelSelect,
-  createDiscordComponentMentionableSelect,
-  createDiscordComponentModal,
-  createDiscordComponentRoleSelect,
-  createDiscordComponentStringSelect,
-  createDiscordComponentUserSelect,
-} from "./agent-components.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+let buildDiscordComponentCustomId: typeof import("../components.js").buildDiscordComponentCustomId;
+let buildDiscordModalCustomId: typeof import("../components.js").buildDiscordModalCustomId;
+let createDiscordComponentButton: typeof import("./agent-components.js").createDiscordComponentButton;
+let createDiscordComponentChannelSelect: typeof import("./agent-components.js").createDiscordComponentChannelSelect;
+let createDiscordComponentMentionableSelect: typeof import("./agent-components.js").createDiscordComponentMentionableSelect;
+let createDiscordComponentModal: typeof import("./agent-components.js").createDiscordComponentModal;
+let createDiscordComponentRoleSelect: typeof import("./agent-components.js").createDiscordComponentRoleSelect;
+let createDiscordComponentStringSelect: typeof import("./agent-components.js").createDiscordComponentStringSelect;
+let createDiscordComponentUserSelect: typeof import("./agent-components.js").createDiscordComponentUserSelect;
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({ buildDiscordComponentCustomId, buildDiscordModalCustomId } = await import("../components.js"));
+  ({
+    createDiscordComponentButton,
+    createDiscordComponentChannelSelect,
+    createDiscordComponentMentionableSelect,
+    createDiscordComponentModal,
+    createDiscordComponentRoleSelect,
+    createDiscordComponentStringSelect,
+    createDiscordComponentUserSelect,
+  } = await import("./agent-components.js"));
+});
 
 type WildcardComponent = {
   customId: string;
diff --git a/extensions/discord/src/monitor/listeners.test.ts b/extensions/discord/src/monitor/listeners.test.ts
index d8158320e44..1fc68a29eef 100644
--- a/extensions/discord/src/monitor/listeners.test.ts
+++ b/extensions/discord/src/monitor/listeners.test.ts
@@ -1,5 +1,11 @@
-import { describe, expect, it, vi } from "vitest";
-import { DiscordMessageListener } from "./listeners.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+let DiscordMessageListener: typeof import("./listeners.js").DiscordMessageListener;
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({ DiscordMessageListener } = await import("./listeners.js"));
+});
 
 function createLogger() {
   return {
diff --git a/extensions/discord/src/monitor/message-handler.preflight.test.ts b/extensions/discord/src/monitor/message-handler.preflight.test.ts
index bd55cd2ead2..c9758e839d4 100644
--- a/extensions/discord/src/monitor/message-handler.preflight.test.ts
+++ b/extensions/discord/src/monitor/message-handler.preflight.test.ts
@@ -10,11 +10,6 @@ import {
   __testing as sessionBindingTesting,
   registerSessionBindingAdapter,
 } from "../../../../src/infra/outbound/session-binding-service.js";
-import {
-  preflightDiscordMessage,
-  resolvePreflightMentionRequirement,
-  shouldIgnoreBoundThreadWebhookMessage,
-} from "./message-handler.preflight.js";
 import {
   createDiscordMessage,
   createDiscordPreflightArgs,
@@ -25,10 +20,22 @@ import {
   type DiscordConfig,
   type DiscordMessageEvent,
 } from "./message-handler.preflight.test-helpers.js";
-import {
-  __testing as threadBindingTesting,
-  createThreadBindingManager,
-} from "./thread-bindings.js";
+let preflightDiscordMessage: typeof import("./message-handler.preflight.js").preflightDiscordMessage;
+let resolvePreflightMentionRequirement: typeof import("./message-handler.preflight.js").resolvePreflightMentionRequirement;
+let shouldIgnoreBoundThreadWebhookMessage: typeof import("./message-handler.preflight.js").shouldIgnoreBoundThreadWebhookMessage;
+let threadBindingTesting: typeof import("./thread-bindings.js").__testing;
+let createThreadBindingManager: typeof import("./thread-bindings.js").createThreadBindingManager;
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({
+    preflightDiscordMessage,
+    resolvePreflightMentionRequirement,
+    shouldIgnoreBoundThreadWebhookMessage,
+  } = await import("./message-handler.preflight.js"));
+  ({ __testing: threadBindingTesting, createThreadBindingManager } =
+    await import("./thread-bindings.js"));
+});
 
 function createThreadBinding(
   overrides?: Partial<
diff --git a/extensions/discord/src/monitor/message-handler.queue.test.ts b/extensions/discord/src/monitor/message-handler.queue.test.ts
index afd8e882fa6..ff4d1dd25d8 100644
--- a/extensions/discord/src/monitor/message-handler.queue.test.ts
+++ b/extensions/discord/src/monitor/message-handler.queue.test.ts
@@ -1,13 +1,11 @@
-import { describe, expect, it, vi } from "vitest";
-import {
-  createDiscordMessageHandler,
-  preflightDiscordMessageMock,
-  processDiscordMessageMock,
-} from "./message-handler.module-test-helpers.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import {
   createDiscordHandlerParams,
   createDiscordPreflightContext,
 } from "./message-handler.test-helpers.js";
+let createDiscordMessageHandler: typeof import("./message-handler.module-test-helpers.js").createDiscordMessageHandler;
+let preflightDiscordMessageMock: typeof import("./message-handler.module-test-helpers.js").preflightDiscordMessageMock;
+let processDiscordMessageMock: typeof import("./message-handler.module-test-helpers.js").processDiscordMessageMock;
 
 const eventualReplyDeliveredMock = vi.hoisted(() => vi.fn());
 type SetStatusFn = (patch: Record<string, unknown>) => void;
@@ -86,6 +84,12 @@ async function createLifecycleStopScenario(params: {
 }
 
 describe("createDiscordMessageHandler queue behavior", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ createDiscordMessageHandler, preflightDiscordMessageMock, processDiscordMessageMock } =
+      await import("./message-handler.module-test-helpers.js"));
+  });
+
   it("resets busy counters when the handler is created", () => {
     preflightDiscordMessageMock.mockReset();
     processDiscordMessageMock.mockReset();
diff --git a/extensions/discord/src/monitor/native-command.options.test.ts b/extensions/discord/src/monitor/native-command.options.test.ts
index 1f5eb9058ef..deceb66d80f 100644
--- a/extensions/discord/src/monitor/native-command.options.test.ts
+++ b/extensions/discord/src/monitor/native-command.options.test.ts
@@ -1,10 +1,12 @@
-import { describe, expect, it, vi } from "vitest";
-import { listNativeCommandSpecs } from "../../../../src/auto-reply/commands-registry.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import type { OpenClawConfig, loadConfig } from "../../../../src/config/config.js";
-import { createDiscordNativeCommand } from "./native-command.js";
-import { createNoopThreadBindingManager } from "./thread-bindings.js";
+let listNativeCommandSpecs: typeof import("../../../../src/auto-reply/commands-registry.js").listNativeCommandSpecs;
+let createDiscordNativeCommand: typeof import("./native-command.js").createDiscordNativeCommand;
+let createNoopThreadBindingManager: typeof import("./thread-bindings.js").createNoopThreadBindingManager;
 
-function createNativeCommand(name: string): ReturnType<typeof createDiscordNativeCommand> {
+function createNativeCommand(
+  name: string,
+): ReturnType<typeof import("./native-command.js").createDiscordNativeCommand> {
   const command = listNativeCommandSpecs({ provider: "discord" }).find(
     (entry) => entry.name === name,
   );
@@ -24,17 +26,19 @@ function createNativeCommand(name: string): ReturnType<typeof createDiscordNativ
   });
 }
 
-type CommandOption = NonNullable<ReturnType<typeof createDiscordNativeCommand>["options"]>[number];
+type CommandOption = NonNullable<
+  ReturnType<typeof import("./native-command.js").createDiscordNativeCommand>["options"]
+>[number];
 
 function findOption(
-  command: ReturnType<typeof createDiscordNativeCommand>,
+  command: ReturnType<typeof import("./native-command.js").createDiscordNativeCommand>,
   name: string,
 ): CommandOption | undefined {
   return command.options?.find((entry) => entry.name === name);
 }
 
 function requireOption(
-  command: ReturnType<typeof createDiscordNativeCommand>,
+  command: ReturnType<typeof import("./native-command.js").createDiscordNativeCommand>,
   name: string,
 ): CommandOption {
   const option = findOption(command, name);
@@ -60,6 +64,13 @@ function readChoices(option: CommandOption | undefined): unknown[] | undefined {
 }
 
 describe("createDiscordNativeCommand option wiring", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ listNativeCommandSpecs } = await import("../../../../src/auto-reply/commands-registry.js"));
+    ({ createDiscordNativeCommand } = await import("./native-command.js"));
+    ({ createNoopThreadBindingManager } = await import("./thread-bindings.js"));
+  });
+
   it("uses autocomplete for /acp action so inline action values are accepted", async () => {
     const command = createNativeCommand("acp");
     const action = requireOption(command, "action");
diff --git a/extensions/discord/src/monitor/provider.skill-dedupe.test.ts b/extensions/discord/src/monitor/provider.skill-dedupe.test.ts
index cb33c874553..2e182b6210d 100644
--- a/extensions/discord/src/monitor/provider.skill-dedupe.test.ts
+++ b/extensions/discord/src/monitor/provider.skill-dedupe.test.ts
@@ -1,7 +1,13 @@
-import { describe, expect, it } from "vitest";
-import { __testing } from "./provider.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+let __testing: typeof import("./provider.js").__testing;
 
 describe("resolveThreadBindingsEnabled", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ __testing } = await import("./provider.js"));
+  });
+
   it("defaults to enabled when unset", () => {
     expect(
       __testing.resolveThreadBindingsEnabled({
diff --git a/extensions/discord/src/monitor/thread-bindings.discord-api.test.ts b/extensions/discord/src/monitor/thread-bindings.discord-api.test.ts
index 51ae59de906..e048fb5c143 100644
--- a/extensions/discord/src/monitor/thread-bindings.discord-api.test.ts
+++ b/extensions/discord/src/monitor/thread-bindings.discord-api.test.ts
@@ -34,11 +34,14 @@ vi.mock("../send.js", async (importOriginal) => {
   };
 });
 
-const { maybeSendBindingMessage, resolveChannelIdForBinding } =
-  await import("./thread-bindings.discord-api.js");
+let maybeSendBindingMessage: typeof import("./thread-bindings.discord-api.js").maybeSendBindingMessage;
+let resolveChannelIdForBinding: typeof import("./thread-bindings.discord-api.js").resolveChannelIdForBinding;
 
 describe("resolveChannelIdForBinding", () => {
-  beforeEach(() => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ maybeSendBindingMessage, resolveChannelIdForBinding } =
+      await import("./thread-bindings.discord-api.js"));
     hoisted.restGet.mockClear();
     hoisted.createDiscordRestClient.mockClear();
     hoisted.sendMessageDiscord.mockClear().mockResolvedValue({});
@@ -124,7 +127,10 @@ describe("resolveChannelIdForBinding", () => {
 });
 
 describe("maybeSendBindingMessage", () => {
-  beforeEach(() => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ maybeSendBindingMessage, resolveChannelIdForBinding } =
+      await import("./thread-bindings.discord-api.js"));
     hoisted.sendMessageDiscord.mockClear().mockResolvedValue({});
     hoisted.sendWebhookMessageDiscord.mockClear().mockResolvedValue({});
   });
diff --git a/extensions/discord/src/monitor/thread-session-close.test.ts b/extensions/discord/src/monitor/thread-session-close.test.ts
index a5cca87119c..faff3a4cf03 100644
--- a/extensions/discord/src/monitor/thread-session-close.test.ts
+++ b/extensions/discord/src/monitor/thread-session-close.test.ts
@@ -15,7 +15,7 @@ vi.mock("openclaw/plugin-sdk/config-runtime", async (importOriginal) => {
   };
 });
 
-const { closeDiscordThreadSessions } = await import("./thread-session-close.js");
+let closeDiscordThreadSessions: typeof import("./thread-session-close.js").closeDiscordThreadSessions;
 
 function setupStore(store: Record<string, { updatedAt: number }>) {
   hoisted.updateSessionStore.mockImplementation(
@@ -30,7 +30,9 @@ const MATCHED_KEY = `agent:main:discord:channel:${THREAD_ID}`;
 const UNMATCHED_KEY = `agent:main:discord:channel:${OTHER_ID}`;
 
 describe("closeDiscordThreadSessions", () => {
-  beforeEach(() => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ closeDiscordThreadSessions } = await import("./thread-session-close.js"));
     hoisted.updateSessionStore.mockClear();
     hoisted.resolveStorePath.mockClear();
     hoisted.resolveStorePath.mockReturnValue("/tmp/openclaw-sessions.json");
diff --git a/extensions/discord/src/outbound-adapter.test.ts b/extensions/discord/src/outbound-adapter.test.ts
index c3833972f44..08cff034216 100644
--- a/extensions/discord/src/outbound-adapter.test.ts
+++ b/extensions/discord/src/outbound-adapter.test.ts
@@ -1,5 +1,4 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
-import { normalizeDiscordOutboundTarget } from "./normalize.js";
 
 const hoisted = vi.hoisted(() => {
   const sendMessageDiscordMock = vi.fn();
@@ -37,7 +36,14 @@ vi.mock("./monitor/thread-bindings.js", async (importOriginal) => {
   };
 });
 
-const { discordOutbound } = await import("./outbound-adapter.js");
+let normalizeDiscordOutboundTarget: typeof import("./normalize.js").normalizeDiscordOutboundTarget;
+let discordOutbound: typeof import("./outbound-adapter.js").discordOutbound;
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({ normalizeDiscordOutboundTarget } = await import("./normalize.js"));
+  ({ discordOutbound } = await import("./outbound-adapter.js"));
+});
 
 const DEFAULT_DISCORD_SEND_RESULT = {
   channel: "discord",
diff --git a/extensions/signal/src/monitor/event-handler.inbound-context.test.ts b/extensions/signal/src/monitor/event-handler.inbound-context.test.ts
index 501561fe474..b57405bf61a 100644
--- a/extensions/signal/src/monitor/event-handler.inbound-context.test.ts
+++ b/extensions/signal/src/monitor/event-handler.inbound-context.test.ts
@@ -1,10 +1,8 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import type { MsgContext } from "../../../../src/auto-reply/templating.js";
-import { expectChannelInboundContextContract as expectInboundContextContract } from "../../../../src/channels/plugins/contracts/suites.js";
-import {
-  createBaseSignalEventHandlerDeps,
-  createSignalReceiveEvent,
-} from "./event-handler.test-harness.js";
+let expectInboundContextContract: typeof import("../../../../src/channels/plugins/contracts/suites.js").expectChannelInboundContextContract;
+let createBaseSignalEventHandlerDeps: typeof import("./event-handler.test-harness.js").createBaseSignalEventHandlerDeps;
+let createSignalReceiveEvent: typeof import("./event-handler.test-harness.js").createSignalReceiveEvent;
 
 const { sendTypingMock, sendReadReceiptMock, dispatchInboundMessageMock, capture } = vi.hoisted(
   () => {
@@ -52,7 +50,12 @@ let createSignalEventHandler: typeof import("./event-handler.js").createSignalEv
 
 describe("signal createSignalEventHandler inbound context", () => {
   beforeEach(async () => {
+    vi.useRealTimers();
     vi.resetModules();
+    ({ expectChannelInboundContextContract: expectInboundContextContract } =
+      await import("../../../../src/channels/plugins/contracts/suites.js"));
+    ({ createBaseSignalEventHandlerDeps, createSignalReceiveEvent } =
+      await import("./event-handler.test-harness.js"));
     ({ createSignalEventHandler } = await import("./event-handler.js"));
     capture.ctx = undefined;
     sendTypingMock.mockReset().mockResolvedValue(true);
diff --git a/extensions/slack/src/monitor.threading.missing-thread-ts.test.ts b/extensions/slack/src/monitor.threading.missing-thread-ts.test.ts
index 99944e04d3c..7ae9efb1d58 100644
--- a/extensions/slack/src/monitor.threading.missing-thread-ts.test.ts
+++ b/extensions/slack/src/monitor.threading.missing-thread-ts.test.ts
@@ -10,7 +10,7 @@ import {
   stopSlackMonitor,
 } from "./monitor.test-helpers.js";
 
-const { monitorSlackProvider } = await import("./monitor.js");
+let monitorSlackProvider: typeof import("./monitor.js").monitorSlackProvider;
 
 const slackTestState = getSlackTestState();
 
@@ -69,6 +69,12 @@ async function runMissingThreadScenario(params: {
 
 beforeEach(() => {
   resetInboundDedupe();
+});
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({ monitorSlackProvider } = await import("./monitor.js"));
+  resetInboundDedupe();
   resetSlackTestState({
     messages: { responsePrefix: "PFX" },
     channels: {
diff --git a/extensions/slack/src/monitor/message-handler.app-mention-race.test.ts b/extensions/slack/src/monitor/message-handler.app-mention-race.test.ts
index a6b972f2e7d..d4305ef0030 100644
--- a/extensions/slack/src/monitor/message-handler.app-mention-race.test.ts
+++ b/extensions/slack/src/monitor/message-handler.app-mention-race.test.ts
@@ -50,7 +50,7 @@ vi.mock("./message-handler/dispatch.js", () => ({
     dispatchPreparedSlackMessageMock(prepared),
 }));
 
-import { createSlackMessageHandler } from "./message-handler.js";
+let createSlackMessageHandler: typeof import("./message-handler.js").createSlackMessageHandler;
 
 function createMarkMessageSeen() {
   const seen = new Set<string>();
@@ -117,7 +117,9 @@ async function createInFlightMessageScenario(ts: string) {
 }
 
 describe("createSlackMessageHandler app_mention race handling", () => {
-  beforeEach(() => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ createSlackMessageHandler } = await import("./message-handler.js"));
     prepareSlackMessageMock.mockReset();
     dispatchPreparedSlackMessageMock.mockReset();
   });
diff --git a/extensions/slack/src/monitor/replies.test.ts b/extensions/slack/src/monitor/replies.test.ts
index 50bf5e4026f..18f50fc3748 100644
--- a/extensions/slack/src/monitor/replies.test.ts
+++ b/extensions/slack/src/monitor/replies.test.ts
@@ -5,7 +5,7 @@ vi.mock("../send.js", () => ({
   sendMessageSlack: (...args: unknown[]) => sendMock(...args),
 }));
 
-import { deliverReplies } from "./replies.js";
+let deliverReplies: typeof import("./replies.js").deliverReplies;
 
 function baseParams(overrides?: Record<string, unknown>) {
   return {
@@ -20,7 +20,9 @@ function baseParams(overrides?: Record<string, unknown>) {
 }
 
 describe("deliverReplies identity passthrough", () => {
-  beforeEach(() => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ deliverReplies } = await import("./replies.js"));
     sendMock.mockReset();
   });
   it("passes identity to sendMessageSlack for text replies", async () => {
diff --git a/extensions/slack/src/monitor/slash.test.ts b/extensions/slack/src/monitor/slash.test.ts
index a1f537ffc32..fba939345c3 100644
--- a/extensions/slack/src/monitor/slash.test.ts
+++ b/extensions/slack/src/monitor/slash.test.ts
@@ -194,7 +194,9 @@ async function loadRegisterSlackMonitorSlashCommands(): Promise<RegisterFn> {
 
 const { dispatchMock } = getSlackSlashMocks();
 
-beforeEach(() => {
+beforeEach(async () => {
+  vi.resetModules();
+  registerSlackMonitorSlashCommandsPromise = undefined;
   resetSlackSlashMocks();
 });
 
diff --git a/extensions/telegram/src/allowed-updates.test.ts b/extensions/telegram/src/allowed-updates.test.ts
index e0c149cc682..1e6534c1a53 100644
--- a/extensions/telegram/src/allowed-updates.test.ts
+++ b/extensions/telegram/src/allowed-updates.test.ts
@@ -1,6 +1,14 @@
-import { API_CONSTANTS } from "grammy";
-import { describe, expect, it } from "vitest";
-import { DEFAULT_TELEGRAM_UPDATE_TYPES, resolveTelegramAllowedUpdates } from "./allowed-updates.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+let API_CONSTANTS: typeof import("grammy").API_CONSTANTS;
+let DEFAULT_TELEGRAM_UPDATE_TYPES: typeof import("./allowed-updates.js").DEFAULT_TELEGRAM_UPDATE_TYPES;
+let resolveTelegramAllowedUpdates: typeof import("./allowed-updates.js").resolveTelegramAllowedUpdates;
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({ API_CONSTANTS } = await import("grammy"));
+  ({ DEFAULT_TELEGRAM_UPDATE_TYPES, resolveTelegramAllowedUpdates } =
+    await import("./allowed-updates.js"));
+});
 
 describe("resolveTelegramAllowedUpdates", () => {
   it("includes the default update types plus reaction and channel post support", () => {
diff --git a/extensions/telegram/src/audit.test.ts b/extensions/telegram/src/audit.test.ts
index 021ffaf99cb..404796b49f3 100644
--- a/extensions/telegram/src/audit.test.ts
+++ b/extensions/telegram/src/audit.test.ts
@@ -1,4 +1,4 @@
-import { beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 
 let collectTelegramUnmentionedGroupIds: typeof import("./audit.js").collectTelegramUnmentionedGroupIds;
 let auditTelegramGroupMembership: typeof import("./audit.js").auditTelegramGroupMembership;
@@ -31,12 +31,10 @@ async function auditSingleGroup() {
 }
 
 describe("telegram audit", () => {
-  beforeAll(async () => {
+  beforeEach(async () => {
+    vi.resetModules();
     ({ collectTelegramUnmentionedGroupIds, auditTelegramGroupMembership } =
       await import("./audit.js"));
-  });
-
-  beforeEach(() => {
     fetchWithTimeoutMock.mockReset();
   });
 
diff --git a/extensions/telegram/src/bot-message-context.dm-threads.test.ts b/extensions/telegram/src/bot-message-context.dm-threads.test.ts
index 23fb0cdcc19..51cfcf52e8b 100644
--- a/extensions/telegram/src/bot-message-context.dm-threads.test.ts
+++ b/extensions/telegram/src/bot-message-context.dm-threads.test.ts
@@ -1,9 +1,20 @@
-import { afterEach, describe, expect, it } from "vitest";
-import {
-  clearRuntimeConfigSnapshot,
-  setRuntimeConfigSnapshot,
-} from "../../../src/config/config.js";
-import { buildTelegramMessageContextForTest } from "./bot-message-context.test-harness.js";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+let buildTelegramMessageContextForTest: typeof import("./bot-message-context.test-harness.js").buildTelegramMessageContextForTest;
+let clearRuntimeConfigSnapshot: typeof import("../../../src/config/config.js").clearRuntimeConfigSnapshot;
+let setRuntimeConfigSnapshot: typeof import("../../../src/config/config.js").setRuntimeConfigSnapshot;
+
+beforeEach(async () => {
+  vi.resetModules();
+  ({ buildTelegramMessageContextForTest } = await import("./bot-message-context.test-harness.js"));
+  ({ clearRuntimeConfigSnapshot, setRuntimeConfigSnapshot } =
+    await import("../../../src/config/config.js"));
+  clearRuntimeConfigSnapshot();
+});
+
+afterEach(() => {
+  clearRuntimeConfigSnapshot();
+});
 
 describe("buildTelegramMessageContext dm thread sessions", () => {
   const buildContext = async (message: Record<string, unknown>) =>
@@ -110,10 +121,6 @@ describe("buildTelegramMessageContext group sessions without forum", () => {
 });
 
 describe("buildTelegramMessageContext direct peer routing", () => {
-  afterEach(() => {
-    clearRuntimeConfigSnapshot();
-  });
-
   it("isolates dm sessions by sender id when chat id differs", async () => {
     const runtimeCfg = {
       agents: { defaults: { model: "anthropic/claude-opus-4-5", workspace: "/tmp/openclaw" } },
diff --git a/extensions/telegram/src/bot-message-context.test-harness.ts b/extensions/telegram/src/bot-message-context.test-harness.ts
index 27cf2764028..bc2e7bd48e0 100644
--- a/extensions/telegram/src/bot-message-context.test-harness.ts
+++ b/extensions/telegram/src/bot-message-context.test-harness.ts
@@ -1,9 +1,5 @@
 import { vi } from "vitest";
-import {
-  buildTelegramMessageContext,
-  type BuildTelegramMessageContextParams,
-  type TelegramMediaRef,
-} from "./bot-message-context.js";
+import type { BuildTelegramMessageContextParams, TelegramMediaRef } from "./bot-message-context.js";
 
 export const baseTelegramMessageContextConfig = {
   agents: { defaults: { model: "anthropic/claude-opus-4-5", workspace: "/tmp/openclaw" } },
@@ -24,7 +20,10 @@ type BuildTelegramMessageContextForTestParams = {
 
 export async function buildTelegramMessageContextForTest(
   params: BuildTelegramMessageContextForTestParams,
-): Promise<Awaited<ReturnType<typeof buildTelegramMessageContext>>> {
+): Promise<
+  Awaited<ReturnType<typeof import("./bot-message-context.js").buildTelegramMessageContext>>
+> {
+  const { buildTelegramMessageContext } = await import("./bot-message-context.js");
   return await buildTelegramMessageContext({
     primaryCtx: {
       message: {
diff --git a/extensions/telegram/src/bot-native-commands.test.ts b/extensions/telegram/src/bot-native-commands.test.ts
index fee2e282767..71850ea7280 100644
--- a/extensions/telegram/src/bot-native-commands.test.ts
+++ b/extensions/telegram/src/bot-native-commands.test.ts
@@ -33,7 +33,6 @@ vi.mock("./bot/delivery.replies.js", () => ({
 
 let registerTelegramNativeCommands: typeof import("./bot-native-commands.js").registerTelegramNativeCommands;
 import {
-  createCommandBot,
   createNativeCommandTestParams as createNativeCommandTestParamsBase,
   createPrivateCommandContext,
   deliverReplies as registeredDeliverReplies,
@@ -80,6 +79,12 @@ function createNativeCommandTestParams(
   });
 }
 
+function resolveDeliverRepliesCalls() {
+  return deliveryMocks.deliverReplies.mock.calls.length > 0
+    ? deliveryMocks.deliverReplies.mock.calls
+    : registeredDeliverReplies.mock.calls;
+}
+
 describe("registerTelegramNativeCommands", () => {
   beforeEach(async () => {
     vi.resetModules();
@@ -270,7 +275,8 @@ describe("registerTelegramNativeCommands", () => {
     expect(handler).toBeTruthy();
     await handler?.(createPrivateCommandContext());
 
-    expect(registeredDeliverReplies).toHaveBeenCalledWith(
+    const firstDeliverRepliesCall = resolveDeliverRepliesCalls().at(0) as [unknown] | undefined;
+    expect(firstDeliverRepliesCall?.[0]).toEqual(
       expect.objectContaining({
         mediaLocalRoots: expect.arrayContaining([
           expect.stringMatching(/[\\/]\.openclaw[\\/]workspace-work$/),
@@ -324,7 +330,8 @@ describe("registerTelegramNativeCommands", () => {
     expect(handler).toBeTruthy();
     await handler?.(createPrivateCommandContext());
 
-    expect(registeredDeliverReplies).toHaveBeenCalledWith(
+    const firstDeliverRepliesCall = resolveDeliverRepliesCalls().at(0) as [unknown] | undefined;
+    expect(firstDeliverRepliesCall?.[0]).toEqual(
       expect.objectContaining({
         silent: true,
         replies: [expect.objectContaining({ isError: true })],
diff --git a/extensions/telegram/src/bot.create-telegram-bot.channel-post-media.test.ts b/extensions/telegram/src/bot.create-telegram-bot.channel-post-media.test.ts
index 91e2195d8dc..590bc145f1c 100644
--- a/extensions/telegram/src/bot.create-telegram-bot.channel-post-media.test.ts
+++ b/extensions/telegram/src/bot.create-telegram-bot.channel-post-media.test.ts
@@ -11,18 +11,9 @@ const {
   telegramBotRuntimeForTest,
 } = harness;
 
-const { createTelegramBot: createTelegramBotBase, setTelegramBotRuntimeForTest } =
-  await import("./bot.js");
-
-setTelegramBotRuntimeForTest(
-  telegramBotRuntimeForTest as unknown as Parameters<typeof setTelegramBotRuntimeForTest>[0],
-);
-
-const createTelegramBot = (opts: Parameters<typeof createTelegramBotBase>[0]) =>
-  createTelegramBotBase({
-    ...opts,
-    telegramDeps: telegramBotDepsForTest,
-  });
+let createTelegramBot: (
+  opts: Parameters<typeof import("./bot.js").createTelegramBot>[0],
+) => ReturnType<typeof import("./bot.js").createTelegramBot>;
 
 const loadConfig = getLoadConfigMock();
 
@@ -69,6 +60,20 @@ function resolveFlushTimer(setTimeoutSpy: ReturnType<typeof vi.spyOn>) {
 }
 
 describe("createTelegramBot channel_post media", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    const { createTelegramBot: createTelegramBotBase, setTelegramBotRuntimeForTest } =
+      await import("./bot.js");
+    setTelegramBotRuntimeForTest(
+      telegramBotRuntimeForTest as unknown as Parameters<typeof setTelegramBotRuntimeForTest>[0],
+    );
+    createTelegramBot = (opts) =>
+      createTelegramBotBase({
+        ...opts,
+        telegramDeps: telegramBotDepsForTest,
+      });
+  });
+
   it("buffers channel_post media groups and processes them together", async () => {
     setOpenChannelPostConfig();
 
diff --git a/extensions/telegram/src/bot.create-telegram-bot.test.ts b/extensions/telegram/src/bot.create-telegram-bot.test.ts
index ae2d85fa8a7..b02e94a85a5 100644
--- a/extensions/telegram/src/bot.create-telegram-bot.test.ts
+++ b/extensions/telegram/src/bot.create-telegram-bot.test.ts
@@ -2,7 +2,7 @@ import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";
 import type { GetReplyOptions, MsgContext } from "openclaw/plugin-sdk/reply-runtime";
-import { afterAll, beforeAll, describe, expect, it, vi } from "vitest";
+import { afterAll, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
 import { escapeRegExp, formatEnvelopeTimestamp } from "../../../test/helpers/envelope-timestamp.js";
 import { withEnvAsync } from "../../../test/helpers/extensions/env.js";
 import { useFrozenTime, useRealTime } from "../../../test/helpers/extensions/frozen-time.js";
@@ -33,22 +33,11 @@ const {
   throttlerSpy,
   useSpy,
 } = harness;
-import { resolveTelegramFetch } from "./fetch.js";
-
-// Import after the harness registers `vi.mock(...)` for grammY and Telegram internals.
-const {
-  createTelegramBot: createTelegramBotBase,
-  getTelegramSequentialKey,
-  setTelegramBotRuntimeForTest,
-} = await import("./bot.js");
-setTelegramBotRuntimeForTest(
-  telegramBotRuntimeForTest as unknown as Parameters<typeof setTelegramBotRuntimeForTest>[0],
-);
-const createTelegramBot = (opts: Parameters<typeof createTelegramBotBase>[0]) =>
-  createTelegramBotBase({
-    ...opts,
-    telegramDeps: telegramBotDepsForTest,
-  });
+let resolveTelegramFetch: typeof import("./fetch.js").resolveTelegramFetch;
+let createTelegramBot: (
+  opts: Parameters<typeof import("./bot.js").createTelegramBot>[0],
+) => ReturnType<typeof import("./bot.js").createTelegramBot>;
+let getTelegramSequentialKey: typeof import("./bot.js").getTelegramSequentialKey;
 
 const loadConfig = getLoadConfigMock();
 const loadWebMedia = getLoadWebMediaMock();
@@ -92,6 +81,24 @@ describe("createTelegramBot", () => {
   afterAll(() => {
     process.env.TZ = ORIGINAL_TZ;
   });
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ resolveTelegramFetch } = await import("./fetch.js"));
+    const {
+      createTelegramBot: createTelegramBotBase,
+      getTelegramSequentialKey: importedGetTelegramSequentialKey,
+      setTelegramBotRuntimeForTest,
+    } = await import("./bot.js");
+    setTelegramBotRuntimeForTest(
+      telegramBotRuntimeForTest as unknown as Parameters<typeof setTelegramBotRuntimeForTest>[0],
+    );
+    getTelegramSequentialKey = importedGetTelegramSequentialKey;
+    createTelegramBot = (opts) =>
+      createTelegramBotBase({
+        ...opts,
+        telegramDeps: telegramBotDepsForTest,
+      });
+  });
 
   // groupPolicy tests
 
diff --git a/extensions/telegram/src/bot.test.ts b/extensions/telegram/src/bot.test.ts
index 5fe9ff639f7..fd7837e06cf 100644
--- a/extensions/telegram/src/bot.test.ts
+++ b/extensions/telegram/src/bot.test.ts
@@ -27,22 +27,13 @@ const {
   wasSentByBot,
 } = await import("./bot.create-telegram-bot.test-harness.js");
 
-// Import after the harness registers `vi.mock(...)` for grammY and Telegram internals.
-const { listNativeCommandSpecs, listNativeCommandSpecsForConfig } =
-  await import("../../../src/auto-reply/commands-registry.js");
-const { loadSessionStore } = await import("../../../src/config/sessions.js");
-const { normalizeTelegramCommandName } =
-  await import("../../../src/config/telegram-custom-commands.js");
-const { createTelegramBot: createTelegramBotBase, setTelegramBotRuntimeForTest } =
-  await import("./bot.js");
-setTelegramBotRuntimeForTest(
-  telegramBotRuntimeForTest as unknown as Parameters<typeof setTelegramBotRuntimeForTest>[0],
-);
-const createTelegramBot = (opts: Parameters<typeof createTelegramBotBase>[0]) =>
-  createTelegramBotBase({
-    ...opts,
-    telegramDeps: telegramBotDepsForTest,
-  });
+let listNativeCommandSpecs: typeof import("../../../src/auto-reply/commands-registry.js").listNativeCommandSpecs;
+let listNativeCommandSpecsForConfig: typeof import("../../../src/auto-reply/commands-registry.js").listNativeCommandSpecsForConfig;
+let loadSessionStore: typeof import("../../../src/config/sessions.js").loadSessionStore;
+let normalizeTelegramCommandName: typeof import("../../../src/config/telegram-custom-commands.js").normalizeTelegramCommandName;
+let createTelegramBot: (
+  opts: Parameters<typeof import("./bot.js").createTelegramBot>[0],
+) => ReturnType<typeof import("./bot.js").createTelegramBot>;
 
 const loadConfig = getLoadConfigMock();
 const readChannelAllowFromStore = getReadChannelAllowFromStoreMock();
@@ -77,6 +68,24 @@ describe("createTelegramBot", () => {
       },
     });
   });
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ listNativeCommandSpecs, listNativeCommandSpecsForConfig } =
+      await import("../../../src/auto-reply/commands-registry.js"));
+    ({ loadSessionStore } = await import("../../../src/config/sessions.js"));
+    ({ normalizeTelegramCommandName } =
+      await import("../../../src/config/telegram-custom-commands.js"));
+    const { createTelegramBot: createTelegramBotBase, setTelegramBotRuntimeForTest } =
+      await import("./bot.js");
+    setTelegramBotRuntimeForTest(
+      telegramBotRuntimeForTest as unknown as Parameters<typeof setTelegramBotRuntimeForTest>[0],
+    );
+    createTelegramBot = (opts) =>
+      createTelegramBotBase({
+        ...opts,
+        telegramDeps: telegramBotDepsForTest,
+      });
+  });
 
   it("merges custom commands with native commands", async () => {
     const config = {
diff --git a/extensions/whatsapp/src/channel.outbound.test.ts b/extensions/whatsapp/src/channel.outbound.test.ts
index e45830dc57c..6bde780dd5f 100644
--- a/extensions/whatsapp/src/channel.outbound.test.ts
+++ b/extensions/whatsapp/src/channel.outbound.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import {
   createWhatsAppPollFixture,
   expectWhatsAppPollSent,
@@ -21,9 +21,14 @@ vi.mock("./runtime.js", () => ({
   }),
 }));
 
-import { whatsappPlugin } from "./channel.js";
+let whatsappPlugin: typeof import("./channel.js").whatsappPlugin;
 
 describe("whatsappPlugin outbound sendPoll", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ whatsappPlugin } = await import("./channel.js"));
+  });
+
   it("threads cfg into runtime sendPollWhatsApp call", async () => {
     const { cfg, poll, to, accountId } = createWhatsAppPollFixture();
 
diff --git a/extensions/whatsapp/src/inbound.media.test.ts b/extensions/whatsapp/src/inbound.media.test.ts
index d83ef1dfea5..3d79b613631 100644
--- a/extensions/whatsapp/src/inbound.media.test.ts
+++ b/extensions/whatsapp/src/inbound.media.test.ts
@@ -96,7 +96,8 @@ vi.mock("./session.js", () => {
   };
 });
 
-import { monitorWebInbox, resetWebInboundDedupe } from "./inbound.js";
+let monitorWebInbox: typeof import("./inbound.js").monitorWebInbox;
+let resetWebInboundDedupe: typeof import("./inbound.js").resetWebInboundDedupe;
 let createWaSocket: typeof import("./session.js").createWaSocket;
 
 async function waitForMessage(onMessage: ReturnType<typeof vi.fn>) {
@@ -115,12 +116,18 @@ describe("web inbound media saves with extension", () => {
   }
 
   beforeEach(() => {
+    vi.useRealTimers();
+    vi.resetModules();
     saveMediaBufferSpy.mockClear();
+  });
+
+  beforeEach(async () => {
+    ({ monitorWebInbox, resetWebInboundDedupe } = await import("./inbound.js"));
+    ({ createWaSocket } = await import("./session.js"));
     resetWebInboundDedupe();
   });
 
   beforeAll(async () => {
-    ({ createWaSocket } = await import("./session.js"));
     await fs.rm(HOME, { recursive: true, force: true });
   });
 
diff --git a/extensions/whatsapp/src/inbound/media.node.test.ts b/extensions/whatsapp/src/inbound/media.node.test.ts
index 71d75309f6a..33479c42962 100644
--- a/extensions/whatsapp/src/inbound/media.node.test.ts
+++ b/extensions/whatsapp/src/inbound/media.node.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 
 const { normalizeMessageContent, downloadMediaMessage } = vi.hoisted(() => ({
   normalizeMessageContent: vi.fn((msg: unknown) => msg),
@@ -10,23 +10,31 @@ vi.mock("@whiskeysockets/baileys", () => ({
   downloadMediaMessage,
 }));
 
-import { downloadInboundMedia } from "./media.js";
+let downloadInboundMedia: typeof import("./media.js").downloadInboundMedia;
 
 const mockSock = {
   updateMediaMessage: vi.fn(),
   logger: { child: () => ({}) },
-} as never;
+};
 
 async function expectMimetype(message: Record<string, unknown>, expected: string) {
-  const result = await downloadInboundMedia({ message } as never, mockSock);
+  const result = await downloadInboundMedia({ message } as never, mockSock as never);
   expect(result).toBeDefined();
   expect(result?.mimetype).toBe(expected);
 }
 
 describe("downloadInboundMedia", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ downloadInboundMedia } = await import("./media.js"));
+    normalizeMessageContent.mockClear();
+    downloadMediaMessage.mockClear();
+    mockSock.updateMediaMessage.mockClear();
+  });
+
   it("returns undefined for messages without media", async () => {
     const msg = { message: { conversation: "hello" } } as never;
-    const result = await downloadInboundMedia(msg, mockSock);
+    const result = await downloadInboundMedia(msg, mockSock as never);
     expect(result).toBeUndefined();
   });
 
@@ -59,7 +67,7 @@ describe("downloadInboundMedia", () => {
         documentMessage: { mimetype: "application/pdf", fileName: "report.pdf" },
       },
     } as never;
-    const result = await downloadInboundMedia(msg, mockSock);
+    const result = await downloadInboundMedia(msg, mockSock as never);
     expect(result).toBeDefined();
     expect(result?.mimetype).toBe("application/pdf");
     expect(result?.fileName).toBe("report.pdf");
diff --git a/extensions/whatsapp/src/login.test.ts b/extensions/whatsapp/src/login.test.ts
index 96a9cff2c10..2a3fc5aa71c 100644
--- a/extensions/whatsapp/src/login.test.ts
+++ b/extensions/whatsapp/src/login.test.ts
@@ -19,15 +19,17 @@ vi.mock("./session.js", () => {
   };
 });
 
-import { loginWeb } from "./login.js";
 import type { waitForWaConnection } from "./session.js";
-
-const { createWaSocket } = await import("./session.js");
+let loginWeb: typeof import("./login.js").loginWeb;
+let createWaSocket: typeof import("./session.js").createWaSocket;
 
 describe("web login", () => {
-  beforeEach(() => {
+  beforeEach(async () => {
+    vi.resetModules();
     vi.useFakeTimers();
     vi.clearAllMocks();
+    ({ loginWeb } = await import("./login.js"));
+    ({ createWaSocket } = await import("./session.js"));
   });
 
   afterEach(() => {
diff --git a/extensions/whatsapp/src/media.test.ts b/extensions/whatsapp/src/media.test.ts
index 5e93f80be28..3221a0084f9 100644
--- a/extensions/whatsapp/src/media.test.ts
+++ b/extensions/whatsapp/src/media.test.ts
@@ -2,19 +2,18 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import sharp from "sharp";
-import { afterAll, afterEach, beforeAll, describe, expect, it, vi } from "vitest";
+import { afterAll, afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
 import { resolveStateDir } from "../../../src/config/paths.js";
 import { resolvePreferredOpenClawTmpDir } from "../../../src/infra/tmp-openclaw-dir.js";
 import { optimizeImageToPng } from "../../../src/media/image-ops.js";
 import { mockPinnedHostnameResolution } from "../../../src/test-helpers/ssrf.js";
 import { captureEnv } from "../../../test/helpers/extensions/env.js";
 import { sendVoiceMessageDiscord } from "../../discord/src/send.js";
-import {
-  LocalMediaAccessError,
-  loadWebMedia,
-  loadWebMediaRaw,
-  optimizeImageToJpeg,
-} from "./media.js";
+
+let LocalMediaAccessError: typeof import("./media.js").LocalMediaAccessError;
+let loadWebMedia: typeof import("./media.js").loadWebMedia;
+let loadWebMediaRaw: typeof import("./media.js").loadWebMediaRaw;
+let optimizeImageToJpeg: typeof import("./media.js").optimizeImageToJpeg;
 
 const convertHeicToJpegMock = vi.fn();
 
@@ -78,6 +77,8 @@ function cloneStatWithDev<T extends { dev: number | bigint }>(stat: T, dev: numb
 }
 
 beforeAll(async () => {
+  ({ LocalMediaAccessError, loadWebMedia, loadWebMediaRaw, optimizeImageToJpeg } =
+    await import("./media.js"));
   fixtureRoot = await fs.mkdtemp(
     path.join(resolvePreferredOpenClawTmpDir(), "openclaw-media-test-"),
   );
@@ -136,6 +137,12 @@ afterEach(() => {
   vi.clearAllMocks();
 });
 
+beforeEach(async () => {
+  vi.resetModules();
+  ({ LocalMediaAccessError, loadWebMedia, loadWebMediaRaw, optimizeImageToJpeg } =
+    await import("./media.js"));
+});
+
 describe("web media loading", () => {
   beforeAll(() => {
     // Ensure state dir is stable and not influenced by other tests that stub OPENCLAW_STATE_DIR.
diff --git a/extensions/whatsapp/src/monitor-inbox.allows-messages-from-senders-allowfrom-list.test.ts b/extensions/whatsapp/src/monitor-inbox.allows-messages-from-senders-allowfrom-list.test.ts
index 756eea07bab..baeb74d3458 100644
--- a/extensions/whatsapp/src/monitor-inbox.allows-messages-from-senders-allowfrom-list.test.ts
+++ b/extensions/whatsapp/src/monitor-inbox.allows-messages-from-senders-allowfrom-list.test.ts
@@ -158,7 +158,7 @@ describe("web monitor inbox", () => {
       () => {
         expect(sock.sendMessage).toHaveBeenCalledTimes(1);
       },
-      { timeout: 2_000, interval: 5 },
+      { timeout: 5_000, interval: 5 },
     );
     expect(onMessage).not.toHaveBeenCalled();
     expectPairingPromptSent(sock, "999@s.whatsapp.net", "+999");
@@ -246,7 +246,7 @@ describe("web monitor inbox", () => {
           },
         ]);
       },
-      { timeout: 2_000, interval: 5 },
+      { timeout: 5_000, interval: 5 },
     );
 
     // Verify it WAS NOT passed to onMessage
diff --git a/extensions/whatsapp/src/monitor-inbox.captures-media-path-image-messages.test.ts b/extensions/whatsapp/src/monitor-inbox.captures-media-path-image-messages.test.ts
index 18394111a74..726be66f31b 100644
--- a/extensions/whatsapp/src/monitor-inbox.captures-media-path-image-messages.test.ts
+++ b/extensions/whatsapp/src/monitor-inbox.captures-media-path-image-messages.test.ts
@@ -1,11 +1,5 @@
-import crypto from "node:crypto";
-import fsSync from "node:fs";
-import os from "node:os";
-import path from "node:path";
 import "./monitor-inbox.test-harness.js";
-import { describe, expect, it, vi } from "vitest";
-import { setLoggerOverride } from "../../../src/logging.js";
-import { monitorWebInbox } from "./inbound.js";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import {
   DEFAULT_ACCOUNT_ID,
   getAuthDir,
@@ -13,10 +7,31 @@ import {
   installWebMonitorInboxUnitTestHooks,
   mockLoadConfig,
 } from "./monitor-inbox.test-harness.js";
+let monitorWebInbox: typeof import("./inbound.js").monitorWebInbox;
+const inboundLoggerInfoMock = vi.hoisted(() => vi.fn());
+
+vi.mock("openclaw/plugin-sdk/text-runtime", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("openclaw/plugin-sdk/text-runtime")>();
+  return {
+    ...actual,
+    getChildLogger: () => ({
+      info: inboundLoggerInfoMock,
+      warn: vi.fn(),
+      error: vi.fn(),
+      debug: vi.fn(),
+    }),
+  };
+});
 
 describe("web monitor inbox", () => {
   installWebMonitorInboxUnitTestHooks();
 
+  beforeEach(async () => {
+    vi.resetModules();
+    inboundLoggerInfoMock.mockReset();
+    ({ monitorWebInbox } = await import("./inbound.js"));
+  });
+
   async function openMonitor(onMessage = vi.fn()) {
     return await monitorWebInbox({
       verbose: false,
@@ -120,10 +135,7 @@ describe("web monitor inbox", () => {
     expect(sock.ws.close).toHaveBeenCalledTimes(1);
   });
 
-  it("logs inbound bodies to file", async () => {
-    const logPath = path.join(os.tmpdir(), `openclaw-log-test-${crypto.randomUUID()}.log`);
-    setLoggerOverride({ level: "trace", file: logPath });
-
+  it("logs inbound bodies through the inbound child logger", async () => {
     const { listener } = await runSingleUpsertAndCapture({
       type: "notify",
       messages: [
@@ -136,15 +148,13 @@ describe("web monitor inbox", () => {
       ],
     });
 
-    await vi.waitFor(
-      () => {
-        expect(fsSync.existsSync(logPath)).toBe(true);
-      },
-      { timeout: 2_000, interval: 5 },
+    expect(inboundLoggerInfoMock).toHaveBeenCalledWith(
+      expect.objectContaining({
+        body: "ping",
+        from: "+999",
+      }),
+      "inbound message",
     );
-    const content = fsSync.readFileSync(logPath, "utf-8");
-    expect(content).toMatch(/web-inbound/);
-    expect(content).toMatch(/ping/);
     await listener.close();
   });
 
diff --git a/extensions/whatsapp/src/monitor-inbox.test-harness.ts b/extensions/whatsapp/src/monitor-inbox.test-harness.ts
index 195ad1f8f93..a65d3d91c5f 100644
--- a/extensions/whatsapp/src/monitor-inbox.test-harness.ts
+++ b/extensions/whatsapp/src/monitor-inbox.test-harness.ts
@@ -149,7 +149,8 @@ export async function waitForMessageCalls(onMessage: ReturnType<typeof vi.fn>, c
     () => {
       expect(onMessage).toHaveBeenCalledTimes(count);
     },
-    { timeout: 2_000, interval: 5 },
+    // Channel-suite workers can be saturated under no-isolate CI runs.
+    { timeout: 5_000, interval: 5 },
   );
 }
 
@@ -215,6 +216,7 @@ export function installWebMonitorInboxUnitTestHooks(opts?: { authDir?: boolean }
   const createAuthDir = opts?.authDir ?? true;
 
   beforeEach(async () => {
+    vi.useRealTimers();
     vi.resetModules();
     vi.clearAllMocks();
     sessionState.sock = createMockSock();
diff --git a/extensions/whatsapp/src/outbound-adapter.poll.test.ts b/extensions/whatsapp/src/outbound-adapter.poll.test.ts
index 5e23748a233..6d6aac486ad 100644
--- a/extensions/whatsapp/src/outbound-adapter.poll.test.ts
+++ b/extensions/whatsapp/src/outbound-adapter.poll.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import type { OpenClawConfig } from "../../../src/config/config.js";
 
 const hoisted = vi.hoisted(() => ({
@@ -15,9 +15,14 @@ vi.mock("./send.js", () => ({
   sendReactionWhatsApp: hoisted.sendReactionWhatsApp,
 }));
 
-import { whatsappOutbound } from "./outbound-adapter.js";
+let whatsappOutbound: typeof import("./outbound-adapter.js").whatsappOutbound;
 
 describe("whatsappOutbound sendPoll", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    ({ whatsappOutbound } = await import("./outbound-adapter.js"));
+  });
+
   it("threads cfg through poll send options", async () => {
     const cfg = { marker: "resolved-cfg" } as OpenClawConfig;
     const poll = {
diff --git a/src/browser/chrome.test.ts b/src/browser/chrome.test.ts
index ee4cb8541c3..c3d385d7e17 100644
--- a/src/browser/chrome.test.ts
+++ b/src/browser/chrome.test.ts
@@ -4,7 +4,7 @@ import { createServer } from "node:http";
 import type { AddressInfo } from "node:net";
 import os from "node:os";
 import path from "node:path";
-import { afterAll, afterEach, beforeAll, describe, expect, it, vi } from "vitest";
+import { afterAll, afterEach, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
 import { WebSocketServer } from "ws";
 import {
   decorateOpenClawProfile,
@@ -112,6 +112,10 @@ describe("browser chrome profile decoration", () => {
     fixtureRoot = await fsp.mkdtemp(path.join(os.tmpdir(), "openclaw-chrome-suite-"));
   });
 
+  beforeEach(() => {
+    vi.useRealTimers();
+  });
+
   afterAll(async () => {
     if (fixtureRoot) {
       await fsp.rm(fixtureRoot, { recursive: true, force: true });
@@ -206,6 +210,10 @@ describe("browser chrome helpers", () => {
     return vi.spyOn(fs, "existsSync").mockImplementation((p) => match(String(p)));
   }
 
+  beforeEach(() => {
+    vi.useRealTimers();
+  });
+
   afterEach(() => {
     vi.unstubAllEnvs();
     vi.unstubAllGlobals();
diff --git a/src/browser/pw-tools-core.clamps-timeoutms-scrollintoview.test.ts b/src/browser/pw-tools-core.clamps-timeoutms-scrollintoview.test.ts
index fa1e0c01e7d..5633520f97a 100644
--- a/src/browser/pw-tools-core.clamps-timeoutms-scrollintoview.test.ts
+++ b/src/browser/pw-tools-core.clamps-timeoutms-scrollintoview.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import {
   installPwToolsCoreTestHooks,
   setPwToolsCoreCurrentPage,
@@ -6,9 +6,14 @@ import {
 } from "./pw-tools-core.test-harness.js";
 
 installPwToolsCoreTestHooks();
-const mod = await import("./pw-tools-core.js");
+let mod: typeof import("./pw-tools-core.js");
 
 describe("pw-tools-core", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    mod = await import("./pw-tools-core.js");
+  });
+
   it("clamps timeoutMs for scrollIntoView", async () => {
     const scrollIntoViewIfNeeded = vi.fn(async () => {});
     setPwToolsCoreCurrentRefLocator({ scrollIntoViewIfNeeded });
diff --git a/src/browser/pw-tools-core.interactions.batch.test.ts b/src/browser/pw-tools-core.interactions.batch.test.ts
index 2801ebe8190..a2fe18c3cf4 100644
--- a/src/browser/pw-tools-core.interactions.batch.test.ts
+++ b/src/browser/pw-tools-core.interactions.batch.test.ts
@@ -1,4 +1,4 @@
-import { beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 
 let page: { evaluate: ReturnType<typeof vi.fn> } | null = null;
 
@@ -34,11 +34,9 @@ vi.mock("./pw-tools-core.snapshot.js", () => ({
 let batchViaPlaywright: typeof import("./pw-tools-core.interactions.js").batchViaPlaywright;
 
 describe("batchViaPlaywright", () => {
-  beforeAll(async () => {
+  beforeEach(async () => {
+    vi.resetModules();
     ({ batchViaPlaywright } = await import("./pw-tools-core.interactions.js"));
-  });
-
-  beforeEach(() => {
     vi.clearAllMocks();
     page = {
       evaluate: vi.fn(async () => "ok"),
diff --git a/src/browser/pw-tools-core.interactions.set-input-files.test.ts b/src/browser/pw-tools-core.interactions.set-input-files.test.ts
index 93dbf0c44c5..cfe2bc8673b 100644
--- a/src/browser/pw-tools-core.interactions.set-input-files.test.ts
+++ b/src/browser/pw-tools-core.interactions.set-input-files.test.ts
@@ -1,4 +1,4 @@
-import { beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 
 let page: Record<string, unknown> | null = null;
 let locator: Record<string, unknown> | null = null;
@@ -54,11 +54,9 @@ function seedSingleLocatorPage(): { setInputFiles: ReturnType<typeof vi.fn> } {
 }
 
 describe("setInputFilesViaPlaywright", () => {
-  beforeAll(async () => {
+  beforeEach(async () => {
+    vi.resetModules();
     ({ setInputFilesViaPlaywright } = await import("./pw-tools-core.interactions.js"));
-  });
-
-  beforeEach(() => {
     vi.clearAllMocks();
     page = null;
     locator = null;
diff --git a/src/browser/pw-tools-core.last-file-chooser-arm-wins.test.ts b/src/browser/pw-tools-core.last-file-chooser-arm-wins.test.ts
index 16264ba9eb3..9419bab86cd 100644
--- a/src/browser/pw-tools-core.last-file-chooser-arm-wins.test.ts
+++ b/src/browser/pw-tools-core.last-file-chooser-arm-wins.test.ts
@@ -1,7 +1,7 @@
 import crypto from "node:crypto";
 import fs from "node:fs/promises";
 import path from "node:path";
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import { DEFAULT_UPLOAD_DIR } from "./paths.js";
 import {
   installPwToolsCoreTestHooks,
@@ -9,9 +9,14 @@ import {
 } from "./pw-tools-core.test-harness.js";
 
 installPwToolsCoreTestHooks();
-const mod = await import("./pw-tools-core.js");
+let mod: typeof import("./pw-tools-core.js");
 
 describe("pw-tools-core", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    mod = await import("./pw-tools-core.js");
+  });
+
   it("last file-chooser arm wins", async () => {
     const firstPath = path.join(DEFAULT_UPLOAD_DIR, `vitest-arm-1-${crypto.randomUUID()}.txt`);
     const secondPath = path.join(DEFAULT_UPLOAD_DIR, `vitest-arm-2-${crypto.randomUUID()}.txt`);
diff --git a/src/browser/pw-tools-core.screenshots-element-selector.test.ts b/src/browser/pw-tools-core.screenshots-element-selector.test.ts
index 3eb7e333db0..3b5cd15d631 100644
--- a/src/browser/pw-tools-core.screenshots-element-selector.test.ts
+++ b/src/browser/pw-tools-core.screenshots-element-selector.test.ts
@@ -1,7 +1,7 @@
 import crypto from "node:crypto";
 import fs from "node:fs/promises";
 import path from "node:path";
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import { DEFAULT_UPLOAD_DIR } from "./paths.js";
 import {
   getPwToolsCoreSessionMocks,
@@ -12,7 +12,7 @@ import {
 
 installPwToolsCoreTestHooks();
 const sessionMocks = getPwToolsCoreSessionMocks();
-const mod = await import("./pw-tools-core.js");
+let mod: typeof import("./pw-tools-core.js");
 
 function createFileChooserPageMocks() {
   const fileChooser = { setFiles: vi.fn(async () => {}) };
@@ -26,6 +26,11 @@ function createFileChooserPageMocks() {
 }
 
 describe("pw-tools-core", () => {
+  beforeEach(async () => {
+    vi.resetModules();
+    mod = await import("./pw-tools-core.js");
+  });
+
   it("screenshots an element selector", async () => {
     const elementScreenshot = vi.fn(async () => Buffer.from("E"));
     const page = {
diff --git a/src/browser/routes/agent.snapshot.test.ts b/src/browser/routes/agent.snapshot.test.ts
index b31ea1c3e7d..5a3b6f31dbf 100644
--- a/src/browser/routes/agent.snapshot.test.ts
+++ b/src/browser/routes/agent.snapshot.test.ts
@@ -1,4 +1,4 @@
-import { describe, expect, it, vi } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import { resolveTargetIdAfterNavigate } from "./agent.snapshot.js";
 
 type Tab = { targetId: string; url: string };
@@ -8,6 +8,10 @@ function staticListTabs(tabs: Tab[]): () => Promise<Tab[]> {
 }
 
 describe("resolveTargetIdAfterNavigate", () => {
+  beforeEach(() => {
+    vi.useRealTimers();
+  });
+
   it("returns original targetId when old target still exists (no swap)", async () => {
     const result = await resolveTargetIdAfterNavigate({
       oldTargetId: "old-123",
diff --git a/src/browser/server.control-server.test-harness.ts b/src/browser/server.control-server.test-harness.ts
index 04a0f98c9ec..346708f7e9f 100644
--- a/src/browser/server.control-server.test-harness.ts
+++ b/src/browser/server.control-server.test-harness.ts
@@ -401,6 +401,7 @@ export async function cleanupBrowserControlServerTestContext(): Promise<void> {
 
 export function installBrowserControlServerHooks() {
   beforeEach(async () => {
+    vi.useRealTimers();
     cdpMocks.createTargetViaCdp.mockImplementation(async () => {
       if (state.createTargetId) {
         return { targetId: state.createTargetId };