diff --git a/extensions/msteams/src/attachments/shared.ts b/extensions/msteams/src/attachments/shared.ts
index 53f86c85ae31..4de093de4614 100644
--- a/extensions/msteams/src/attachments/shared.ts
+++ b/extensions/msteams/src/attachments/shared.ts
@@ -14,6 +14,7 @@ import {
   normalizeLowercaseStringOrEmpty,
   normalizeOptionalString,
 } from "openclaw/plugin-sdk/string-coerce-runtime";
+import { responseWithRelease } from "../response-with-release.js";
 import type { MSTeamsAttachmentLike } from "./types.js";
 
 type InlineImageCandidate =
@@ -576,52 +577,6 @@ export async function resolveAndValidateIP(
 
 /** Maximum number of redirects to follow in safeFetch. */
 const MAX_SAFE_REDIRECTS = 5;
-const NULL_BODY_STATUSES = new Set([101, 204, 205, 304]);
-
-function responseWithRelease(response: Response, release: () => Promise<void>): Response {
-  let released = false;
-  const releaseOnce = async () => {
-    if (released) {
-      return;
-    }
-    released = true;
-    await release();
-  };
-
-  if (!response.body || NULL_BODY_STATUSES.has(response.status)) {
-    void releaseOnce();
-    return response;
-  }
-
-  const reader = response.body.getReader();
-  const body = new ReadableStream<Uint8Array>({
-    async pull(controller) {
-      try {
-        const next = await reader.read();
-        if (next.done) {
-          controller.close();
-          await releaseOnce();
-          return;
-        }
-        controller.enqueue(next.value);
-      } catch (err) {
-        await releaseOnce();
-        throw err;
-      }
-    },
-    async cancel(reason) {
-      void reader.cancel(reason).catch(() => {});
-      await releaseOnce();
-    },
-  });
-
-  return new Response(body, {
-    status: response.status,
-    statusText: response.statusText,
-    headers: response.headers,
-  });
-}
-
 /**
  * Fetch a URL with redirect: "manual", validating each redirect target
  * against the hostname allowlist and optional DNS-resolved IP (anti-SSRF).
diff --git a/extensions/msteams/src/graph.ts b/extensions/msteams/src/graph.ts
index 39210ecc6cc7..dce49865cd7c 100644
--- a/extensions/msteams/src/graph.ts
+++ b/extensions/msteams/src/graph.ts
@@ -4,13 +4,13 @@ import { fetchWithSsrFGuard, type MSTeamsConfig } from "../runtime-api.js";
 import { GRAPH_ROOT } from "./attachments/shared.js";
 import { resolveMSTeamsSdkCloudOptions } from "./cloud.js";
 import { createMSTeamsHttpError } from "./http-error.js";
+import { responseWithRelease } from "./response-with-release.js";
 import { createMSTeamsTokenProvider, loadMSTeamsSdkWithAuth } from "./sdk.js";
 import { readAccessToken } from "./token-response.js";
 import { resolveDelegatedAccessToken, resolveMSTeamsCredentials } from "./token.js";
 import { buildUserAgent } from "./user-agent.js";
 
 const GRAPH_BETA = "https://graph.microsoft.com/beta";
-const NULL_BODY_STATUSES = new Set([101, 204, 205, 304]);
 
 export type GraphUser = {
   id?: string;
@@ -31,50 +31,6 @@ type GraphChannel = {
 
 export type GraphResponse<T> = { value?: T[] };
 
-function responseWithRelease(response: Response, release: () => Promise<void>): Response {
-  let released = false;
-  const releaseOnce = async () => {
-    if (released) {
-      return;
-    }
-    released = true;
-    await release();
-  };
-
-  if (!response.body || NULL_BODY_STATUSES.has(response.status)) {
-    void releaseOnce();
-    return response;
-  }
-
-  const reader = response.body.getReader();
-  const body = new ReadableStream<Uint8Array>({
-    async pull(controller) {
-      try {
-        const next = await reader.read();
-        if (next.done) {
-          controller.close();
-          await releaseOnce();
-          return;
-        }
-        controller.enqueue(next.value);
-      } catch (error) {
-        await releaseOnce();
-        throw error;
-      }
-    },
-    async cancel(reason) {
-      void reader.cancel(reason).catch(() => undefined);
-      await releaseOnce();
-    },
-  });
-
-  return new Response(body, {
-    status: response.status,
-    statusText: response.statusText,
-    headers: response.headers,
-  });
-}
-
 export function normalizeQuery(value?: string | null): string {
   return value?.trim() ?? "";
 }
diff --git a/extensions/msteams/src/response-with-release.ts b/extensions/msteams/src/response-with-release.ts
new file mode 100644
index 000000000000..054b45b24fc2
--- /dev/null
+++ b/extensions/msteams/src/response-with-release.ts
@@ -0,0 +1,45 @@
+const NULL_BODY_STATUSES = new Set([101, 204, 205, 304]);
+
+export function responseWithRelease(response: Response, release: () => Promise<void>): Response {
+  let released = false;
+  const releaseOnce = async () => {
+    if (released) {
+      return;
+    }
+    released = true;
+    await release();
+  };
+
+  if (!response.body || NULL_BODY_STATUSES.has(response.status)) {
+    void releaseOnce();
+    return response;
+  }
+
+  const reader = response.body.getReader();
+  const body = new ReadableStream<Uint8Array>({
+    async pull(controller) {
+      try {
+        const next = await reader.read();
+        if (next.done) {
+          controller.close();
+          await releaseOnce();
+          return;
+        }
+        controller.enqueue(next.value);
+      } catch (error) {
+        await releaseOnce();
+        throw error;
+      }
+    },
+    async cancel(reason) {
+      void reader.cancel(reason).catch(() => undefined);
+      await releaseOnce();
+    },
+  });
+
+  return new Response(body, {
+    status: response.status,
+    statusText: response.statusText,
+    headers: response.headers,
+  });
+}