diff --git a/extensions/signal/runtime-api.ts b/extensions/signal/runtime-api.ts
index e258df15c9c..b7b73960068 100644
--- a/extensions/signal/runtime-api.ts
+++ b/extensions/signal/runtime-api.ts
@@ -1 +1,2 @@
-export * from "./src/index.js";
+export * from "openclaw/plugin-sdk/signal";
+export * from "openclaw/plugin-sdk/signal-core";
diff --git a/extensions/signal/src/accounts.ts b/extensions/signal/src/accounts.ts
index 456db907685..f167654ef3f 100644
--- a/extensions/signal/src/accounts.ts
+++ b/extensions/signal/src/accounts.ts
@@ -4,7 +4,7 @@ import {
   resolveAccountEntry,
   type OpenClawConfig,
 } from "openclaw/plugin-sdk/account-resolution";
-import type { SignalAccountConfig } from "openclaw/plugin-sdk/signal";
+import type { SignalAccountConfig } from "../runtime-api.js";
 
 export type ResolvedSignalAccount = {
   accountId: string;
diff --git a/extensions/signal/src/channel.setup.ts b/extensions/signal/src/channel.setup.ts
index 6fa8add4405..14ec21590bd 100644
--- a/extensions/signal/src/channel.setup.ts
+++ b/extensions/signal/src/channel.setup.ts
@@ -1,4 +1,4 @@
-import { type ChannelPlugin } from "openclaw/plugin-sdk/signal";
+import { type ChannelPlugin } from "../runtime-api.js";
 import { type ResolvedSignalAccount } from "./accounts.js";
 import { signalSetupAdapter } from "./setup-core.js";
 import { createSignalPluginBase, signalSetupWizard } from "./shared.js";
diff --git a/extensions/signal/src/channel.ts b/extensions/signal/src/channel.ts
index 8552a26c8df..6e1a22337e2 100644
--- a/extensions/signal/src/channel.ts
+++ b/extensions/signal/src/channel.ts
@@ -16,7 +16,7 @@ import {
   PAIRING_APPROVED_MESSAGE,
   resolveChannelMediaMaxBytes,
   type ChannelPlugin,
-} from "openclaw/plugin-sdk/signal";
+} from "../runtime-api.js";
 import { resolveSignalAccount, type ResolvedSignalAccount } from "./accounts.js";
 import { markdownToSignalTextChunks } from "./format.js";
 import {
diff --git a/extensions/signal/src/shared.ts b/extensions/signal/src/shared.ts
index 8e738fd0776..e72807edbca 100644
--- a/extensions/signal/src/shared.ts
+++ b/extensions/signal/src/shared.ts
@@ -11,7 +11,7 @@ import {
   normalizeE164,
   SignalConfigSchema,
   type ChannelPlugin,
-} from "openclaw/plugin-sdk/signal-core";
+} from "../runtime-api.js";
 import {
   listSignalAccountIds,
   resolveDefaultSignalAccountId,