diff --git a/CHANGELOG.md b/CHANGELOG.md
index fa96121ab73..1b16e3f6efa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -147,6 +147,7 @@ Docs: https://docs.openclaw.ai
 - Tools/image generation: add bundled fal image generation support so `image_generate` can target `fal/*` models with `FAL_KEY`, including single-image edit flows via FLUX image-to-image. Thanks @vincentkoc.
 - xAI/web search: add missing Grok credential metadata so the bundled provider registration type-checks again. (#49472) thanks @scoootscooob.
 - Signal/runtime API: re-export `SignalAccountConfig` so Signal account resolution type-checks again. (#49470) Thanks @scoootscooob.
+- Google Chat/runtime API: thin the private runtime barrel onto the curated public SDK surface while keeping public Google Chat exports intact. (#49504) Thanks @scoootscooob.
 
 ### Breaking
 
diff --git a/extensions/googlechat/runtime-api.ts b/extensions/googlechat/runtime-api.ts
index 28f7c81c4e9..6f0861114ec 100644
--- a/extensions/googlechat/runtime-api.ts
+++ b/extensions/googlechat/runtime-api.ts
@@ -1,107 +1,4 @@
 // Private runtime barrel for the bundled Google Chat extension.
-// Keep this curated to the symbols used by production code under extensions/googlechat/src.
+// Keep this seam thin and aligned with the curated plugin-sdk/googlechat surface.
 
-export {
-  createActionGate,
-  jsonResult,
-  readNumberParam,
-  readReactionParams,
-  readStringParam,
-} from "../../src/agents/tools/common.js";
-export {
-  createScopedChannelConfigAdapter,
-  createScopedAccountConfigAccessors,
-  createScopedChannelConfigBase,
-  createTopLevelChannelConfigAdapter,
-  createHybridChannelConfigAdapter,
-  createScopedDmSecurityResolver,
-} from "../../src/plugin-sdk/channel-config-helpers.js";
-export {
-  buildOpenGroupPolicyConfigureRouteAllowlistWarning,
-  collectAllowlistProviderGroupPolicyWarnings,
-} from "../../src/plugin-sdk/channel-policy.js";
-export { resolveMentionGatingWithBypass } from "../../src/channels/mention-gating.js";
-export { formatNormalizedAllowFromEntries } from "../../src/plugin-sdk/allow-from.js";
-export { buildComputedAccountStatusSnapshot } from "../../src/plugin-sdk/status-helpers.js";
-export {
-  createAccountStatusSink,
-  runPassiveAccountLifecycle,
-} from "../../src/plugin-sdk/channel-lifecycle.js";
-export { buildChannelConfigSchema } from "../../src/channels/plugins/config-schema.js";
-export {
-  deleteAccountFromConfigSection,
-  setAccountEnabledInConfigSection,
-} from "../../src/channels/plugins/config-helpers.js";
-export {
-  listDirectoryGroupEntriesFromMapKeys,
-  listDirectoryUserEntriesFromAllowFrom,
-} from "../../src/channels/plugins/directory-config-helpers.js";
-export { formatPairingApproveHint } from "../../src/channels/plugins/helpers.js";
-export { resolveChannelMediaMaxBytes } from "../../src/channels/plugins/media-limits.js";
-export {
-  addWildcardAllowFrom,
-  mergeAllowFromEntries,
-  splitSetupEntries,
-  setTopLevelChannelDmPolicyWithAllowFrom,
-} from "../../src/channels/plugins/setup-wizard-helpers.js";
-export { PAIRING_APPROVED_MESSAGE } from "../../src/channels/plugins/pairing-message.js";
-export {
-  applyAccountNameToChannelSection,
-  applySetupAccountConfigPatch,
-  migrateBaseNameToDefaultAccount,
-} from "../../src/channels/plugins/setup-helpers.js";
-export { createAccountListHelpers } from "../../src/channels/plugins/account-helpers.js";
-export type {
-  ChannelAccountSnapshot,
-  ChannelMessageActionAdapter,
-  ChannelMessageActionName,
-  ChannelStatusIssue,
-} from "../../src/channels/plugins/types.js";
-export type { ChannelPlugin } from "../../src/channels/plugins/types.plugin.js";
-export { getChatChannelMeta } from "../../src/channels/registry.js";
-export { createReplyPrefixOptions } from "../../src/channels/reply-prefix.js";
-export type { OpenClawConfig } from "../../src/config/config.js";
-export { isDangerousNameMatchingEnabled } from "../../src/config/dangerous-name-matching.js";
-export {
-  GROUP_POLICY_BLOCKED_LABEL,
-  resolveAllowlistProviderRuntimeGroupPolicy,
-  resolveDefaultGroupPolicy,
-  warnMissingProviderGroupPolicyFallbackOnce,
-} from "../../src/config/runtime-group-policy.js";
-export type {
-  DmPolicy,
-  GoogleChatAccountConfig,
-  GoogleChatConfig,
-} from "../../src/config/types.js";
-export { isSecretRef } from "../../src/config/types.secrets.js";
-export { GoogleChatConfigSchema } from "../../src/config/zod-schema.providers-core.js";
-export { fetchWithSsrFGuard } from "../../src/infra/net/fetch-guard.js";
-export { missingTargetError } from "../../src/infra/outbound/target-errors.js";
-export { emptyPluginConfigSchema } from "../../src/plugins/config-schema.js";
-export type { PluginRuntime } from "../../src/plugins/runtime/types.js";
-export type { OpenClawPluginApi } from "../../src/plugins/types.js";
-export { DEFAULT_ACCOUNT_ID, normalizeAccountId } from "../../src/routing/session-key.js";
-export { resolveDmGroupAccessWithLists } from "../../src/security/dm-policy-shared.js";
-export { formatDocsLink } from "../../src/terminal/links.js";
-export type { WizardPrompter } from "../../src/wizard/prompts.js";
-export { resolveInboundRouteEnvelopeBuilderWithRuntime } from "../../src/plugin-sdk/inbound-envelope.js";
-export { createScopedPairingAccess } from "../../src/plugin-sdk/pairing-access.js";
-export { issuePairingChallenge } from "../../src/pairing/pairing-challenge.js";
-export {
-  evaluateGroupRouteAccessForPolicy,
-  resolveSenderScopedGroupPolicy,
-} from "../../src/plugin-sdk/group-access.js";
-export { extractToolSend } from "../../src/plugin-sdk/tool-send.js";
-export { resolveWebhookPath } from "../../src/plugin-sdk/webhook-path.js";
-export type { WebhookInFlightLimiter } from "../../src/plugin-sdk/webhook-request-guards.js";
-export {
-  beginWebhookRequestPipelineOrReject,
-  createWebhookInFlightLimiter,
-  readJsonWebhookBodyOrReject,
-} from "../../src/plugin-sdk/webhook-request-guards.js";
-export {
-  registerWebhookTargetWithPluginRoute,
-  resolveWebhookTargets,
-  resolveWebhookTargetWithAuthOrReject,
-  withResolvedWebhookRequestPipeline,
-} from "../../src/plugin-sdk/webhook-targets.js";
+export * from "openclaw/plugin-sdk/googlechat";
diff --git a/extensions/googlechat/src/accounts.ts b/extensions/googlechat/src/accounts.ts
index 0e973cbe02f..314ae8272bb 100644
--- a/extensions/googlechat/src/accounts.ts
+++ b/extensions/googlechat/src/accounts.ts
@@ -1,5 +1,6 @@
+import { createAccountListHelpers } from "openclaw/plugin-sdk/account-helpers";
 import { DEFAULT_ACCOUNT_ID, normalizeAccountId } from "openclaw/plugin-sdk/account-id";
-import { isSecretRef, createAccountListHelpers, type OpenClawConfig } from "../runtime-api.js";
+import { isSecretRef, type OpenClawConfig } from "openclaw/plugin-sdk/core";
 import type { GoogleChatAccountConfig } from "./types.config.js";
 
 export type GoogleChatCredentialSource = "file" | "inline" | "env" | "none";
diff --git a/extensions/googlechat/src/group-policy.ts b/extensions/googlechat/src/group-policy.ts
index ab10399e529..cf4de7018cf 100644
--- a/extensions/googlechat/src/group-policy.ts
+++ b/extensions/googlechat/src/group-policy.ts
@@ -1,5 +1,5 @@
 import { resolveChannelGroupRequireMention } from "openclaw/plugin-sdk/channel-policy";
-import type { OpenClawConfig } from "../runtime-api.js";
+import type { OpenClawConfig } from "openclaw/plugin-sdk/core";
 
 type GoogleChatGroupContext = {
   cfg: OpenClawConfig;
diff --git a/extensions/googlechat/src/monitor-types.ts b/extensions/googlechat/src/monitor-types.ts
index 4cddc70ea3b..26027be5d17 100644
--- a/extensions/googlechat/src/monitor-types.ts
+++ b/extensions/googlechat/src/monitor-types.ts
@@ -1,4 +1,4 @@
-import type { OpenClawConfig } from "../runtime-api.js";
+import type { OpenClawConfig } from "openclaw/plugin-sdk/core";
 import type { ResolvedGoogleChatAccount } from "./accounts.js";
 import type { GoogleChatAudienceType } from "./auth.js";
 import { getGoogleChatRuntime } from "./runtime.js";
diff --git a/src/plugin-sdk/core.ts b/src/plugin-sdk/core.ts
index ba49614389d..124c37d6712 100644
--- a/src/plugin-sdk/core.ts
+++ b/src/plugin-sdk/core.ts
@@ -54,6 +54,7 @@ export type {
   PluginInteractiveTelegramHandlerContext,
 } from "../plugins/types.js";
 export type { OpenClawConfig } from "../config/config.js";
+export { isSecretRef } from "../config/types.secrets.js";
 export type { GatewayRequestHandlerOptions } from "../gateway/server-methods/types.js";
 export type {
   ChannelOutboundSessionRoute,
diff --git a/src/plugin-sdk/runtime-api-guardrails.test.ts b/src/plugin-sdk/runtime-api-guardrails.test.ts
index 785ed9de224..1b29d1570c6 100644
--- a/src/plugin-sdk/runtime-api-guardrails.test.ts
+++ b/src/plugin-sdk/runtime-api-guardrails.test.ts
@@ -31,6 +31,7 @@ const RUNTIME_API_EXPORT_GUARDS: Record<string, readonly string[]> = {
     'export * from "./src/probe.js";',
     'export * from "./src/send.js";',
   ],
+  "extensions/googlechat/runtime-api.ts": ['export * from "openclaw/plugin-sdk/googlechat";'],
   "extensions/nextcloud-talk/runtime-api.ts": [
     'export * from "openclaw/plugin-sdk/nextcloud-talk";',
   ],
diff --git a/src/plugin-sdk/subpaths.test.ts b/src/plugin-sdk/subpaths.test.ts
index 606e7b623f8..313d2d4d263 100644
--- a/src/plugin-sdk/subpaths.test.ts
+++ b/src/plugin-sdk/subpaths.test.ts
@@ -73,6 +73,7 @@ describe("plugin-sdk subpath exports", () => {
     expect(typeof coreSdk.defineChannelPluginEntry).toBe("function");
     expect(typeof coreSdk.defineSetupPluginEntry).toBe("function");
     expect(typeof coreSdk.createChannelPluginBase).toBe("function");
+    expect(typeof coreSdk.isSecretRef).toBe("function");
     expect(typeof coreSdk.optionalStringEnum).toBe("function");
     expect("runPassiveAccountLifecycle" in asExports(coreSdk)).toBe(false);
     expect("createLoggerBackedRuntime" in asExports(coreSdk)).toBe(false);
@@ -259,8 +260,22 @@ describe("plugin-sdk subpath exports", () => {
   });
 
   it("exports Google Chat helpers", async () => {
+    expect(typeof googlechatSdk.buildChannelConfigSchema).toBe("function");
+    expect(typeof googlechatSdk.createWebhookInFlightLimiter).toBe("function");
+    expect(typeof googlechatSdk.fetchWithSsrFGuard).toBe("function");
     expect(typeof googlechatSdk.googlechatSetupWizard).toBe("object");
     expect(typeof googlechatSdk.googlechatSetupAdapter).toBe("object");
+    expect(typeof googlechatSdk.resolveGoogleChatGroupRequireMention).toBe("function");
+  });
+
+  it("keeps the Google Chat runtime seam aligned with the public SDK subpath", async () => {
+    const googlechatRuntimeApi = await import("../../extensions/googlechat/runtime-api.js");
+
+    expect(typeof googlechatRuntimeApi.buildChannelConfigSchema).toBe("function");
+    expect(typeof googlechatRuntimeApi.createWebhookInFlightLimiter).toBe("function");
+    expect(typeof googlechatRuntimeApi.fetchWithSsrFGuard).toBe("function");
+    expect(typeof googlechatRuntimeApi.createActionGate).toBe("function");
+    expect(typeof googlechatRuntimeApi.resolveWebhookTargetWithAuthOrReject).toBe("function");
   });
 
   it("exports Zalo helpers", async () => {