diff --git a/extensions/discord/src/setup-core.ts b/extensions/discord/src/setup-core.ts
index 4425ed6adeb..7f4c1be29d3 100644
--- a/extensions/discord/src/setup-core.ts
+++ b/extensions/discord/src/setup-core.ts
@@ -13,13 +13,13 @@ import {
   setSetupChannelEnabled,
   type OpenClawConfig,
 } from "openclaw/plugin-sdk/setup";
-import { formatDocsLink } from "../../../src/terminal/links.js";
 import {
   createAllowlistSetupWizardProxy,
   type ChannelSetupAdapter,
   type ChannelSetupDmPolicy,
   type ChannelSetupWizard,
 } from "openclaw/plugin-sdk/setup";
+import { formatDocsLink } from "../../../src/terminal/links.js";
 import { inspectDiscordAccount } from "./account-inspect.js";
 import { listDiscordAccountIds, resolveDiscordAccount } from "./accounts.js";
 
diff --git a/extensions/discord/src/setup-surface.ts b/extensions/discord/src/setup-surface.ts
index 6373f89dbcf..be5a374d0fa 100644
--- a/extensions/discord/src/setup-surface.ts
+++ b/extensions/discord/src/setup-surface.ts
@@ -11,8 +11,8 @@ import {
   setSetupChannelEnabled,
   type WizardPrompter,
 } from "openclaw/plugin-sdk/setup";
-import { formatDocsLink } from "../../../src/terminal/links.js";
 import { type ChannelSetupDmPolicy, type ChannelSetupWizard } from "openclaw/plugin-sdk/setup";
+import { formatDocsLink } from "../../../src/terminal/links.js";
 import { inspectDiscordAccount } from "./account-inspect.js";
 import {
   listDiscordAccountIds,
diff --git a/extensions/imessage/src/setup-core.ts b/extensions/imessage/src/setup-core.ts
index 7543df157e8..bc99f521510 100644
--- a/extensions/imessage/src/setup-core.ts
+++ b/extensions/imessage/src/setup-core.ts
@@ -10,13 +10,13 @@ import {
   type OpenClawConfig,
   type WizardPrompter,
 } from "openclaw/plugin-sdk/setup";
-import { formatDocsLink } from "../../../src/terminal/links.js";
 import type {
   ChannelSetupAdapter,
   ChannelSetupDmPolicy,
   ChannelSetupWizard,
   ChannelSetupWizardTextInput,
 } from "openclaw/plugin-sdk/setup";
+import { formatDocsLink } from "../../../src/terminal/links.js";
 import {
   listIMessageAccountIds,
   resolveDefaultIMessageAccountId,
diff --git a/extensions/imessage/src/setup-surface.ts b/extensions/imessage/src/setup-surface.ts
index f01b4c03f93..6581fabbacd 100644
--- a/extensions/imessage/src/setup-surface.ts
+++ b/extensions/imessage/src/setup-surface.ts
@@ -1,7 +1,4 @@
-import {
-  setSetupChannelEnabled,
-  type ChannelSetupWizard,
-} from "openclaw/plugin-sdk/setup";
+import { setSetupChannelEnabled, type ChannelSetupWizard } from "openclaw/plugin-sdk/setup";
 import { detectBinary } from "../../../src/plugins/setup-binary.js";
 import { listIMessageAccountIds, resolveIMessageAccount } from "./accounts.js";
 import {
diff --git a/extensions/imessage/src/shared.ts b/extensions/imessage/src/shared.ts
index 5ce509f757d..1ede2ad412d 100644
--- a/extensions/imessage/src/shared.ts
+++ b/extensions/imessage/src/shared.ts
@@ -2,19 +2,19 @@ import {
   buildAccountScopedDmSecurityPolicy,
   collectAllowlistProviderRestrictSendersWarnings,
 } from "openclaw/plugin-sdk/channel-policy";
+import {
+  deleteAccountFromConfigSection,
+  setAccountEnabledInConfigSection,
+} from "../../../src/channels/plugins/config-helpers.js";
+import { buildChannelConfigSchema } from "../../../src/channels/plugins/config-schema.js";
+import type { ChannelPlugin } from "../../../src/channels/plugins/types.plugin.js";
+import { getChatChannelMeta } from "../../../src/channels/registry.js";
+import { IMessageConfigSchema } from "../../../src/config/zod-schema.providers-core.js";
 import {
   formatTrimmedAllowFromEntries,
   resolveIMessageConfigAllowFrom,
   resolveIMessageConfigDefaultTo,
 } from "../../../src/plugin-sdk/channel-config-helpers.js";
-import { buildChannelConfigSchema } from "../../../src/channels/plugins/config-schema.js";
-import {
-  deleteAccountFromConfigSection,
-  setAccountEnabledInConfigSection,
-} from "../../../src/channels/plugins/config-helpers.js";
-import type { ChannelPlugin } from "../../../src/channels/plugins/types.plugin.js";
-import { getChatChannelMeta } from "../../../src/channels/registry.js";
-import { IMessageConfigSchema } from "../../../src/config/zod-schema.providers-core.js";
 import { DEFAULT_ACCOUNT_ID } from "../../../src/routing/session-key.js";
 import {
   listIMessageAccountIds,
diff --git a/extensions/signal/src/setup-surface.ts b/extensions/signal/src/setup-surface.ts
index 2094e76da05..edcea39d6b1 100644
--- a/extensions/signal/src/setup-surface.ts
+++ b/extensions/signal/src/setup-surface.ts
@@ -1,7 +1,4 @@
-import {
-  setSetupChannelEnabled,
-  type ChannelSetupWizard,
-} from "openclaw/plugin-sdk/setup";
+import { setSetupChannelEnabled, type ChannelSetupWizard } from "openclaw/plugin-sdk/setup";
 import { detectBinary } from "../../../src/plugins/setup-binary.js";
 import { installSignalCli } from "../../../src/plugins/signal-cli-install.js";
 import { listSignalAccountIds, resolveSignalAccount } from "./accounts.js";
diff --git a/extensions/slack/src/setup-core.ts b/extensions/slack/src/setup-core.ts
index 5cd7a71d22c..6cd9232b388 100644
--- a/extensions/slack/src/setup-core.ts
+++ b/extensions/slack/src/setup-core.ts
@@ -15,13 +15,13 @@ import {
   setLegacyChannelDmPolicyWithAllowFrom,
   setSetupChannelEnabled,
 } from "openclaw/plugin-sdk/setup";
-import { formatDocsLink } from "../../../src/terminal/links.js";
 import {
   type ChannelSetupAdapter,
   type ChannelSetupDmPolicy,
   type ChannelSetupWizard,
   type ChannelSetupWizardAllowFromEntry,
 } from "openclaw/plugin-sdk/setup";
+import { formatDocsLink } from "../../../src/terminal/links.js";
 import { inspectSlackAccount } from "./account-inspect.js";
 import { listSlackAccountIds, resolveSlackAccount, type ResolvedSlackAccount } from "./accounts.js";
 import {
diff --git a/extensions/slack/src/setup-surface.ts b/extensions/slack/src/setup-surface.ts
index 309dc669af8..4e3670ac843 100644
--- a/extensions/slack/src/setup-surface.ts
+++ b/extensions/slack/src/setup-surface.ts
@@ -14,12 +14,12 @@ import {
   setSetupChannelEnabled,
   type WizardPrompter,
 } from "openclaw/plugin-sdk/setup";
-import { formatDocsLink } from "../../../src/terminal/links.js";
 import type {
   ChannelSetupDmPolicy,
   ChannelSetupWizard,
   ChannelSetupWizardAllowFromEntry,
 } from "openclaw/plugin-sdk/setup";
+import { formatDocsLink } from "../../../src/terminal/links.js";
 import { inspectSlackAccount } from "./account-inspect.js";
 import {
   listSlackAccountIds,
diff --git a/extensions/telegram/src/bot-native-commands.menu-test-support.ts b/extensions/telegram/src/bot-native-commands.menu-test-support.ts
index 8e67e625f93..e37634e7d55 100644
--- a/extensions/telegram/src/bot-native-commands.menu-test-support.ts
+++ b/extensions/telegram/src/bot-native-commands.menu-test-support.ts
@@ -1,4 +1,4 @@
-import type { RuntimeEnv } from "openclaw/plugin-sdk";
+import type { RuntimeEnv } from "openclaw/plugin-sdk/runtime-env";
 import type { OpenClawConfig } from "openclaw/plugin-sdk/telegram";
 import { expect, vi } from "vitest";
 import {
diff --git a/extensions/telegram/src/setup-core.ts b/extensions/telegram/src/setup-core.ts
index 10543aad1eb..f2b5fc04d77 100644
--- a/extensions/telegram/src/setup-core.ts
+++ b/extensions/telegram/src/setup-core.ts
@@ -9,9 +9,9 @@ import {
   type OpenClawConfig,
   type WizardPrompter,
 } from "openclaw/plugin-sdk/setup";
+import type { ChannelSetupAdapter, ChannelSetupDmPolicy } from "openclaw/plugin-sdk/setup";
 import { formatCliCommand } from "../../../src/cli/command-format.js";
 import { formatDocsLink } from "../../../src/terminal/links.js";
-import type { ChannelSetupAdapter, ChannelSetupDmPolicy } from "openclaw/plugin-sdk/setup";
 import { resolveDefaultTelegramAccountId, resolveTelegramAccount } from "./accounts.js";
 import { fetchTelegramChatId } from "./api-fetch.js";
 
diff --git a/extensions/whatsapp/src/setup-surface.ts b/extensions/whatsapp/src/setup-surface.ts
index 0975c28d444..7bee33c2ef4 100644
--- a/extensions/whatsapp/src/setup-surface.ts
+++ b/extensions/whatsapp/src/setup-surface.ts
@@ -10,9 +10,9 @@ import {
   type DmPolicy,
   type OpenClawConfig,
 } from "openclaw/plugin-sdk/setup";
+import type { ChannelSetupWizard } from "openclaw/plugin-sdk/setup";
 import { formatCliCommand } from "../../../src/cli/command-format.js";
 import { formatDocsLink } from "../../../src/terminal/links.js";
-import type { ChannelSetupWizard } from "openclaw/plugin-sdk/setup";
 import { listWhatsAppAccountIds, resolveWhatsAppAuthDir } from "./accounts.js";
 import { loginWeb } from "./login.js";
 import { whatsappSetupAdapter } from "./setup-core.js";
diff --git a/extensions/whatsapp/src/shared.ts b/extensions/whatsapp/src/shared.ts
index 6469d1cf18e..575954a516c 100644
--- a/extensions/whatsapp/src/shared.ts
+++ b/extensions/whatsapp/src/shared.ts
@@ -3,20 +3,20 @@ import {
   collectAllowlistProviderGroupPolicyWarnings,
   collectOpenGroupPolicyRouteAllowlistWarnings,
 } from "openclaw/plugin-sdk/channel-policy";
+import { buildChannelConfigSchema } from "../../../src/channels/plugins/config-schema.js";
+import {
+  resolveWhatsAppGroupRequireMention,
+  resolveWhatsAppGroupToolPolicy,
+} from "../../../src/channels/plugins/group-mentions.js";
+import type { ChannelPlugin } from "../../../src/channels/plugins/types.plugin.js";
+import { resolveWhatsAppGroupIntroHint } from "../../../src/channels/plugins/whatsapp-shared.js";
+import { getChatChannelMeta } from "../../../src/channels/registry.js";
+import { WhatsAppConfigSchema } from "../../../src/config/zod-schema.providers-whatsapp.js";
 import {
   formatWhatsAppConfigAllowFromEntries,
   resolveWhatsAppConfigAllowFrom,
   resolveWhatsAppConfigDefaultTo,
 } from "../../../src/plugin-sdk/channel-config-helpers.js";
-import { buildChannelConfigSchema } from "../../../src/channels/plugins/config-schema.js";
-import type { ChannelPlugin } from "../../../src/channels/plugins/types.plugin.js";
-import {
-  resolveWhatsAppGroupRequireMention,
-  resolveWhatsAppGroupToolPolicy,
-} from "../../../src/channels/plugins/group-mentions.js";
-import { resolveWhatsAppGroupIntroHint } from "../../../src/channels/plugins/whatsapp-shared.js";
-import { getChatChannelMeta } from "../../../src/channels/registry.js";
-import { WhatsAppConfigSchema } from "../../../src/config/zod-schema.providers-whatsapp.js";
 import { DEFAULT_ACCOUNT_ID } from "../../../src/routing/session-key.js";
 import { normalizeE164 } from "../../../src/utils.js";
 import {
diff --git a/scripts/check-no-monolithic-plugin-sdk-entry-imports.ts b/scripts/check-no-monolithic-plugin-sdk-entry-imports.ts
index 32c4646009a..bc24087ace3 100644
--- a/scripts/check-no-monolithic-plugin-sdk-entry-imports.ts
+++ b/scripts/check-no-monolithic-plugin-sdk-entry-imports.ts
@@ -68,6 +68,27 @@ function collectSharedExtensionSourceFiles(): string[] {
   return collectPluginSourceFiles(path.join(process.cwd(), "extensions", "shared"));
 }
 
+function collectBundledExtensionSourceFiles(): string[] {
+  const extensionsDir = path.join(process.cwd(), "extensions");
+  let entries: fs.Dirent[] = [];
+  try {
+    entries = fs.readdirSync(extensionsDir, { withFileTypes: true });
+  } catch {
+    return [];
+  }
+
+  const files: string[] = [];
+  for (const entry of entries) {
+    if (!entry.isDirectory() || entry.name === "shared") {
+      continue;
+    }
+    for (const srcFile of collectPluginSourceFiles(path.join(extensionsDir, entry.name))) {
+      files.push(srcFile);
+    }
+  }
+  return files;
+}
+
 function main() {
   const discovery = discoverOpenClawPlugins({});
   const bundledCandidates = discovery.candidates.filter((c) => c.origin === "bundled");
@@ -81,6 +102,9 @@ function main() {
   for (const sharedFile of collectSharedExtensionSourceFiles()) {
     filesToCheck.add(sharedFile);
   }
+  for (const extensionFile of collectBundledExtensionSourceFiles()) {
+    filesToCheck.add(extensionFile);
+  }
 
   const monolithicOffenders: string[] = [];
   const legacyCompatOffenders: string[] = [];
diff --git a/src/plugin-sdk/channel-import-guardrails.test.ts b/src/plugin-sdk/channel-import-guardrails.test.ts
index 51905b66b02..447489b1a0f 100644
--- a/src/plugin-sdk/channel-import-guardrails.test.ts
+++ b/src/plugin-sdk/channel-import-guardrails.test.ts
@@ -1,4 +1,4 @@
-import { readFileSync } from "node:fs";
+import { readdirSync, readFileSync } from "node:fs";
 import { dirname, resolve } from "node:path";
 import { fileURLToPath } from "node:url";
 import { describe, expect, it } from "vitest";
@@ -108,6 +108,47 @@ function readSetupBarrelImportBlock(path: string): string {
   return lines.slice(startLineIndex, targetLineIndex + 1).join("\n");
 }
 
+function collectExtensionSourceFiles(): string[] {
+  const extensionsDir = resolve(ROOT_DIR, "..", "extensions");
+  const sharedExtensionsDir = resolve(extensionsDir, "shared");
+  const files: string[] = [];
+  const stack = [extensionsDir];
+  while (stack.length > 0) {
+    const current = stack.pop();
+    if (!current) {
+      continue;
+    }
+    for (const entry of readdirSync(current, { withFileTypes: true })) {
+      const fullPath = resolve(current, entry.name);
+      if (entry.isDirectory()) {
+        if (entry.name === "node_modules" || entry.name === "dist" || entry.name === "coverage") {
+          continue;
+        }
+        stack.push(fullPath);
+        continue;
+      }
+      if (!entry.isFile() || !/\.(?:[cm]?ts|[cm]?js|tsx|jsx)$/u.test(entry.name)) {
+        continue;
+      }
+      if (entry.name.endsWith(".d.ts") || fullPath.includes(sharedExtensionsDir)) {
+        continue;
+      }
+      if (fullPath.includes(`${resolve(ROOT_DIR, "..", "extensions")}/shared/`)) {
+        continue;
+      }
+      if (
+        fullPath.includes(".test.") ||
+        fullPath.includes(".fixture.") ||
+        fullPath.includes(".snap")
+      ) {
+        continue;
+      }
+      files.push(fullPath);
+    }
+  }
+  return files;
+}
+
 describe("channel import guardrails", () => {
   it("keeps channel helper modules off their own SDK barrels", () => {
     for (const source of SAME_CHANNEL_SDK_GUARDS) {
@@ -128,4 +169,16 @@ describe("channel import guardrails", () => {
       }
     }
   });
+
+  it("keeps bundled extension source files off root and compat plugin-sdk imports", () => {
+    for (const file of collectExtensionSourceFiles()) {
+      const text = readFileSync(file, "utf8");
+      expect(text, `${file} should not import openclaw/plugin-sdk root`).not.toMatch(
+        /["']openclaw\/plugin-sdk["']/,
+      );
+      expect(text, `${file} should not import openclaw/plugin-sdk/compat`).not.toMatch(
+        /["']openclaw\/plugin-sdk\/compat["']/,
+      );
+    }
+  });
 });