diff --git a/extensions/matrix/src/matrix/sdk/timeout-abort-signal.ts b/extensions/matrix/src/matrix/sdk/timeout-abort-signal.ts
index 082dd8b9c50..1a9f2229c85 100644
--- a/extensions/matrix/src/matrix/sdk/timeout-abort-signal.ts
+++ b/extensions/matrix/src/matrix/sdk/timeout-abort-signal.ts
@@ -1,31 +1 @@
-export function buildTimeoutAbortSignal(params: { timeoutMs?: number; signal?: AbortSignal }): {
-  signal?: AbortSignal;
-  cleanup: () => void;
-} {
-  const { timeoutMs, signal } = params;
-  if (!timeoutMs && !signal) {
-    return { signal: undefined, cleanup: () => {} };
-  }
-  if (!timeoutMs) {
-    return { signal, cleanup: () => {} };
-  }
-
-  const controller = new AbortController();
-  const timeoutId = setTimeout(controller.abort.bind(controller), timeoutMs);
-  const onAbort = () => controller.abort();
-  if (signal) {
-    if (signal.aborted) {
-      controller.abort();
-    } else {
-      signal.addEventListener("abort", onAbort, { once: true });
-    }
-  }
-
-  return {
-    signal: controller.signal,
-    cleanup: () => {
-      clearTimeout(timeoutId);
-      signal?.removeEventListener("abort", onAbort);
-    },
-  };
-}
+export { buildTimeoutAbortSignal } from "openclaw/plugin-sdk/extension-shared";
diff --git a/src/plugin-sdk/extension-shared.ts b/src/plugin-sdk/extension-shared.ts
index 66f99dd158c..5dd830a10ca 100644
--- a/src/plugin-sdk/extension-shared.ts
+++ b/src/plugin-sdk/extension-shared.ts
@@ -3,6 +3,7 @@ import { hasEnvHttpProxyConfigured } from "../infra/net/proxy-env.js";
 import { runPassiveAccountLifecycle } from "./channel-lifecycle.core.js";
 import { createLoggerBackedRuntime } from "./runtime-logger.js";
 export { safeParseJsonWithSchema, safeParseWithSchema } from "../utils/zod-parse.js";
+export { buildTimeoutAbortSignal } from "../utils/fetch-timeout.js";
 
 type PassiveChannelStatusSnapshot = {
   configured?: boolean;