diff --git a/extensions/discord/src/channel.ts b/extensions/discord/src/channel.ts
index f83be6bbe41..88295c61880 100644
--- a/extensions/discord/src/channel.ts
+++ b/extensions/discord/src/channel.ts
@@ -1,9 +1,4 @@
 import { Separator, TextDisplay } from "@buape/carbon";
-import {
-  buildAgentSessionKey,
-  resolveThreadSessionKeys,
-  type RoutePeer,
-} from "openclaw/plugin-sdk";
 import { createScopedChannelConfigBase } from "openclaw/plugin-sdk/compat";
 import {
   buildAccountScopedAllowlistConfigEditor,
@@ -13,6 +8,11 @@ import {
   createScopedAccountConfigAccessors,
   formatAllowFromLowercase,
 } from "openclaw/plugin-sdk/compat";
+import {
+  buildAgentSessionKey,
+  resolveThreadSessionKeys,
+  type RoutePeer,
+} from "openclaw/plugin-sdk/core";
 import {
   buildComputedAccountStatusSnapshot,
   buildChannelConfigSchema,
diff --git a/extensions/imessage/src/channel.ts b/extensions/imessage/src/channel.ts
index a4767706757..2d5b0ba9b39 100644
--- a/extensions/imessage/src/channel.ts
+++ b/extensions/imessage/src/channel.ts
@@ -1,9 +1,9 @@
-import { buildAgentSessionKey, type RoutePeer } from "openclaw/plugin-sdk";
 import {
   buildAccountScopedAllowlistConfigEditor,
   buildAccountScopedDmSecurityPolicy,
   collectAllowlistProviderRestrictSendersWarnings,
 } from "openclaw/plugin-sdk/compat";
+import { buildAgentSessionKey, type RoutePeer } from "openclaw/plugin-sdk/core";
 import {
   buildChannelConfigSchema,
   collectStatusIssuesFromLastError,
diff --git a/extensions/signal/src/channel.ts b/extensions/signal/src/channel.ts
index 2d7e1983972..bb65502e017 100644
--- a/extensions/signal/src/channel.ts
+++ b/extensions/signal/src/channel.ts
@@ -1,10 +1,10 @@
-import { buildAgentSessionKey, type RoutePeer } from "openclaw/plugin-sdk";
 import {
   buildAccountScopedAllowlistConfigEditor,
   buildAccountScopedDmSecurityPolicy,
   createScopedAccountConfigAccessors,
   collectAllowlistProviderRestrictSendersWarnings,
 } from "openclaw/plugin-sdk/compat";
+import { buildAgentSessionKey, type RoutePeer } from "openclaw/plugin-sdk/core";
 import {
   buildBaseAccountStatusSnapshot,
   buildBaseChannelStatusSummary,
diff --git a/extensions/slack/src/channel.ts b/extensions/slack/src/channel.ts
index 32d362be5e6..3b0e347ba24 100644
--- a/extensions/slack/src/channel.ts
+++ b/extensions/slack/src/channel.ts
@@ -1,8 +1,3 @@
-import {
-  buildAgentSessionKey,
-  resolveThreadSessionKeys,
-  type RoutePeer,
-} from "openclaw/plugin-sdk";
 import { createScopedChannelConfigBase } from "openclaw/plugin-sdk/compat";
 import {
   buildAccountScopedAllowlistConfigEditor,
@@ -12,6 +7,11 @@ import {
   createScopedAccountConfigAccessors,
   formatAllowFromLowercase,
 } from "openclaw/plugin-sdk/compat";
+import {
+  buildAgentSessionKey,
+  resolveThreadSessionKeys,
+  type RoutePeer,
+} from "openclaw/plugin-sdk/core";
 import {
   buildComputedAccountStatusSnapshot,
   buildChannelConfigSchema,
diff --git a/extensions/telegram/src/channel.ts b/extensions/telegram/src/channel.ts
index 1b30d43a7e0..37915fa07df 100644
--- a/extensions/telegram/src/channel.ts
+++ b/extensions/telegram/src/channel.ts
@@ -1,8 +1,3 @@
-import {
-  buildAgentSessionKey,
-  resolveThreadSessionKeys,
-  type RoutePeer,
-} from "openclaw/plugin-sdk";
 import { createScopedChannelConfigBase } from "openclaw/plugin-sdk/compat";
 import {
   buildAccountScopedAllowlistConfigEditor,
@@ -12,6 +7,11 @@ import {
   createScopedDmSecurityResolver,
   formatAllowFromLowercase,
 } from "openclaw/plugin-sdk/compat";
+import {
+  buildAgentSessionKey,
+  resolveThreadSessionKeys,
+  type RoutePeer,
+} from "openclaw/plugin-sdk/core";
 import {
   buildChannelConfigSchema,
   buildTokenChannelStatusSummary,
diff --git a/src/plugin-sdk/core.ts b/src/plugin-sdk/core.ts
index 1dd8ada1f6e..458a4ecfce7 100644
--- a/src/plugin-sdk/core.ts
+++ b/src/plugin-sdk/core.ts
@@ -138,3 +138,9 @@ export type {
   TailscaleStatusCommandResult,
   TailscaleStatusCommandRunner,
 } from "../shared/tailscale-status.js";
+export {
+  buildAgentSessionKey,
+  type RoutePeer,
+  type RoutePeerKind,
+} from "../routing/resolve-route.js";
+export { resolveThreadSessionKeys } from "../routing/session-key.js";
diff --git a/src/plugin-sdk/subpaths.test.ts b/src/plugin-sdk/subpaths.test.ts
index 8a57148f430..be9e2680ec5 100644
--- a/src/plugin-sdk/subpaths.test.ts
+++ b/src/plugin-sdk/subpaths.test.ts
@@ -1,5 +1,6 @@
 import * as extensionApi from "openclaw/extension-api";
 import * as compatSdk from "openclaw/plugin-sdk/compat";
+import * as coreSdk from "openclaw/plugin-sdk/core";
 import * as discordSdk from "openclaw/plugin-sdk/discord";
 import * as imessageSdk from "openclaw/plugin-sdk/imessage";
 import * as lineSdk from "openclaw/plugin-sdk/line";
@@ -25,6 +26,11 @@ describe("plugin-sdk subpath exports", () => {
     expect(typeof compatSdk.resolveControlCommandGate).toBe("function");
   });
 
+  it("exports core routing helpers", () => {
+    expect(typeof coreSdk.buildAgentSessionKey).toBe("function");
+    expect(typeof coreSdk.resolveThreadSessionKeys).toBe("function");
+  });
+
   it("exports Discord helpers", () => {
     expect(typeof discordSdk.resolveDiscordAccount).toBe("function");
     expect(typeof discordSdk.inspectDiscordAccount).toBe("function");