fix(msteams): recover inbound channel and group-chat files safely (#90738)

* fix(msteams): read file attachments on Teams channel messages Three bugs blocked reading files attached to channel messages: - Graph /teams/{id} used channelData.team.id (the 19:..@thread.tacv2 thread id) instead of team.aadGroupId (the AAD group GUID) -> 400. - The Graph fetch was gated on an <attachment id> HTML marker that channel @mention activities don't carry -> fetch skipped. - A thread reply was fetched at /messages/{replyId} (404) then fell back to the bare thread root, returning the root's file for every reply. Replies live at /messages/{root}/replies/{replyId}. Fixes #89594 * fix(msteams): gate Graph media fallback on text/html stub; run trigger tests in channel context * fix(msteams): canonicalize Graph attachment recovery Build one canonical Graph message URL per Teams activity, recover marker-free channel and group-chat file shares, and retain bounded current-main attachment handling. Co-authored-by: Colton Williams <colton@coltons-apps.tech> * fix(msteams): canonicalize Graph media recovery Recover channel and group-chat files through one fail-closed Graph identity path, bound inbound enrichment, and remove invalid app-only Graph fallbacks. Co-authored-by: Colton Williams <colton@coltons-apps.tech> Co-authored-by: Joshua Packwood <joshua.packwood@gmail.com> --------- Co-authored-by: Colton Williams <colton@coltons-apps.tech> Co-authored-by: Peter Steinberger <steipete@gmail.com> Co-authored-by: Joshua Packwood <joshua.packwood@gmail.com>
2026-08-12 22:17:00 +00:00 · 2026-07-09 20:34:12 -05:00
parent c07fe5fe70
commit dc8c0aaaf2
55 changed files with 1744 additions and 1404 deletions
--- a/docs/channels/msteams.md
+++ b/docs/channels/msteams.md
@@ -608,29 +608,48 @@ Adds:

 **Bottom line:** RSC is for real-time listening; Graph API is for historical access. To catch up on missed messages while offline, you need Graph API with `ChannelMessage.Read.All` (requires admin consent).

-## Graph-enabled media + history (required for channels)
+## Graph-enabled media + history

-For images/files in **channels**, or to fetch **message history**, enable Microsoft Graph permissions and grant admin consent:
+Enable only the Microsoft Graph application permissions needed for the Teams scopes and data you use:

 1. Entra ID (Azure AD) **App Registration** → add Graph **Application permissions**:
-   - `ChannelMessage.Read.All` (channel attachments + history)
-   - `Chat.Read.All` or `ChatMessage.Read.All` (group chats)
+   - `ChannelMessage.Read.All` for channel attachments and channel history.
+   - `Chat.Read.All` for group-chat attachments and group-chat history.
+   - `Files.Read.All` when attachment bytes must be downloaded from SharePoint/OneDrive storage; history-only setups do not need it.
 2. **Grant admin consent** for the tenant.
 3. Bump the Teams app **manifest version**, re-upload, and **reinstall the app in Teams**.
 4. **Fully quit and relaunch Teams** to clear cached app metadata.

+### Channel/group file recovery (`graphMediaFallback`)
+
+Teams can remove file markers from the HTML activity sent to a bot. In that case, the Bot Framework activity is indistinguishable from an ordinary HTML message; the complete attachment reference exists only on the Graph copy of the message.
+
+Enable the fallback after granting the permissions above:
+
+```json5
+{
+  channels: {
+    msteams: {
+      graphMediaFallback: true,
+    },
+  },
+}
+```
+
+This applies to channels and group chats only. It adds one Graph message lookup whenever an HTML activity produced no directly downloadable media, including ordinary or mention-only messages. The default is `false` so existing installations do not gain extra Graph traffic or permission errors automatically.
+
 **User mentions:** @mentions work out of the box for users already in the conversation. To dynamically search and mention users **not in the current conversation**, add `User.Read.All` (Application) permission and grant admin consent.

 ## Known limitations

 ### Webhook timeouts

-Teams delivers messages via HTTP webhook. OpenClaw applies fixed HTTP server timeouts to that webhook listener: 30s inactivity, 30s total request, 15s to receive headers. If agent processing takes longer than the client's own retry window, you may see:
+Teams delivers messages via HTTP webhook. OpenClaw applies fixed HTTP server timeouts to that webhook listener: 30s inactivity, 30s total request, 15s to receive headers. Optional inbound media and context enrichment has a shared 10-second budget, but the Teams SDK still waits for the agent turn before returning the webhook response. If the full turn exceeds Teams' retry window, you may see:

 - Teams retrying the message (causing duplicates).
 - Dropped replies.

-OpenClaw acks the webhook quickly (before agent processing finishes) and sends replies proactively once the agent responds, but very slow agent runs can still surface retries/duplicates on the Teams side.
+Replies are sent proactively once the agent responds, but slow agent runs can still surface retries or duplicates on the Teams side.

 ### Teams cloud and service URL support

@@ -709,6 +728,7 @@ Key settings (see [/gateway/configuration](/gateway/configuration) for shared ch
 - `channels.msteams.chunkMode`: `length` (default) or `newline` to split on blank lines (paragraph boundaries) before length chunking.
 - `channels.msteams.mediaAllowHosts`: allowlist for inbound attachment hosts (defaults to Microsoft/Teams domains: Graph, SharePoint/OneDrive, Teams CDN, Bot Framework, Azure Media Services).
 - `channels.msteams.mediaAuthAllowHosts`: allowlist for attaching Authorization headers on media retries (defaults to Graph + Bot Framework hosts).
+- `channels.msteams.graphMediaFallback`: opt into Graph message lookups when channel/group HTML omits file markers (default `false`; see [Channel/group file recovery](#channelgroup-file-recovery-graphmediafallback)).
 - `channels.msteams.mediaMaxMb`: per-channel media size limit override in MB. Falls back to `agents.defaults.mediaMaxMb` when unset.
 - `channels.msteams.requireMention`: require @mention in channels/groups (default `true`).
 - `channels.msteams.replyStyle`: `thread | top-level` (see [Reply style](#reply-style-threads-vs-posts)).
@@ -817,12 +837,12 @@ Bots can send files in DMs using the built-in FileConsentCard flow. **Sending fi
 | Context                  | How files are sent                           | Setup needed                                    |
 | ------------------------ | -------------------------------------------- | ----------------------------------------------- |
 | **DMs**                  | FileConsentCard → user accepts → bot uploads | Works out of the box                            |
-| **Group chats/channels** | Upload to SharePoint → share link            | Requires `sharePointSiteId` + Graph permissions |
+| **Group chats/channels** | Upload to SharePoint → native file card      | Requires `sharePointSiteId` + Graph permissions |
 | **Images (any context)** | Base64-encoded inline                        | Works out of the box                            |

 ### Why group chats need SharePoint

-Bots do not have a personal OneDrive drive (`/me/drive` does not work for application identities). To send files in group chats/channels, the bot uploads to a **SharePoint site** and creates a sharing link.
+Bots use an application identity, while Microsoft Graph's `/me` resource [requires a signed-in user](https://learn.microsoft.com/en-us/graph/api/user-get?view=graph-rest-1.0). To send files in group chats/channels, the bot uploads to a **SharePoint site** and creates a sharing link.

 ### Setup

@@ -868,12 +888,12 @@ Per-user sharing is more secure since only chat participants can access the file

 ### Fallback behavior

-| Scenario                                          | Result                                             |
-| ------------------------------------------------- | -------------------------------------------------- |
-| Group chat + file + `sharePointSiteId` configured | Upload to SharePoint, send sharing link            |
-| Group chat + file + no `sharePointSiteId`         | Attempt OneDrive upload (may fail), send text only |
-| Personal chat + file                              | FileConsentCard flow (works without SharePoint)    |
-| Any context + image                               | Base64-encoded inline (works without SharePoint)   |
+| Scenario                                          | Result                                           |
+| ------------------------------------------------- | ------------------------------------------------ |
+| Group chat + file + `sharePointSiteId` configured | Upload to SharePoint, send a native file card    |
+| Group chat + file + no `sharePointSiteId`         | Fail with an actionable configuration error      |
+| Personal chat + file                              | FileConsentCard flow (works without SharePoint)  |
+| Any context + image                               | Base64-encoded inline (works without SharePoint) |

 ### Files stored location

--- a/docs/docs_map.md
+++ b/docs/docs_map.md
@@ -684,7 +684,8 @@ Do not edit it by hand; run `pnpm docs:map:gen`.
  - H3: With Teams RSC only (app installed, no Graph API permissions)
  - H3: With Teams RSC + Microsoft Graph Application permissions
  - H3: RSC vs Graph API
-  - H2: Graph-enabled media + history (required for channels)
+  - H2: Graph-enabled media + history
+  - H3: Channel/group file recovery (graphMediaFallback)
  - H2: Known limitations
  - H3: Webhook timeouts
  - H3: Teams cloud and service URL support
--- a/extensions/msteams/src/attachments.helpers.test.ts
+++ b/extensions/msteams/src/attachments.helpers.test.ts
@@ -3,7 +3,7 @@ import { beforeEach, describe, expect, it } from "vitest";
 import type { PluginRuntime } from "../runtime-api.js";
 import {
  buildMSTeamsAttachmentPlaceholder,
-  buildMSTeamsGraphMessageUrls,
+  buildMSTeamsGraphMessageUrl,
  buildMSTeamsMediaPayload,
  resolveMSTeamsInboundAttachmentPresentation,
 } from "./attachments.js";
@@ -27,7 +27,7 @@ const CONTENT_TYPE_APPLICATION_PDF = "application/pdf";
 const CONTENT_TYPE_TEXT_HTML = "text/html";
 const CONTENT_TYPE_TEAMS_FILE_DOWNLOAD_INFO = "application/vnd.microsoft.teams.file.download.info";
 type AttachmentPlaceholderInput = Parameters<typeof buildMSTeamsAttachmentPlaceholder>[0];
-type GraphMessageUrlParams = Parameters<typeof buildMSTeamsGraphMessageUrls>[0];
+type GraphMessageUrlParams = Parameters<typeof buildMSTeamsGraphMessageUrl>[0];
 type MSTeamsMediaPayload = ReturnType<typeof buildMSTeamsMediaPayload>;

 const runtimeStub = {
@@ -77,22 +77,16 @@ const createImageMediaEntries = (...paths: string[]) =>
  createMediaEntriesWithType(CONTENT_TYPE_IMAGE_PNG, ...paths);
 const DEFAULT_CHANNEL_TEAM_ID = "team-id";
 const DEFAULT_CHANNEL_ID = "chan-id";
-const createChannelGraphMessageUrlParams = (params: {
-  messageId: string;
-  replyToId?: string;
-  conversationId?: string;
-}) => ({
+const createChannelGraphMessageUrlParams = (
+  params: Pick<GraphMessageUrlParams, "messageId" | "threadRootMessageId">,
+) => ({
  conversationType: "channel" as const,
+  teamAadGroupId: DEFAULT_CHANNEL_TEAM_ID,
+  channelId: DEFAULT_CHANNEL_ID,
  ...params,
-  channelData: {
-    team: { id: DEFAULT_CHANNEL_TEAM_ID },
-    channel: { id: DEFAULT_CHANNEL_ID },
-  },
 });
-const buildExpectedChannelMessagePath = (params: { messageId: string; replyToId?: string }) =>
-  params.replyToId
-    ? `/teams/${DEFAULT_CHANNEL_TEAM_ID}/channels/${DEFAULT_CHANNEL_ID}/messages/${params.replyToId}/replies/${params.messageId}`
-    : `/teams/${DEFAULT_CHANNEL_TEAM_ID}/channels/${DEFAULT_CHANNEL_ID}/messages/${params.messageId}`;
+const GRAPH_CHANNEL_MESSAGES_ROOT =
+  "https://graph.microsoft.com/v1.0/teams/team-id/channels/chan-id/messages";

 const expectMSTeamsMediaPayload = (
  payload: MSTeamsMediaPayload,
@@ -147,31 +141,27 @@ const ATTACHMENT_PLACEHOLDER_CASES = [
  }),
 ];

-const GRAPH_URL_EXPECTATION_CASES = [
-  withLabel("builds channel message urls", {
+const GRAPH_MESSAGE_URL_CASES = [
+  withLabel("builds a channel top-level message URL", {
    params: createChannelGraphMessageUrlParams({
-      conversationId: "19:thread@thread.tacv2",
      messageId: "123",
    }),
-    expectedPath: buildExpectedChannelMessagePath({ messageId: "123" }),
+    expectedUrl: `${GRAPH_CHANNEL_MESSAGES_ROOT}/123`,
  }),
-  withLabel("builds channel reply urls when replyToId is present", {
+  withLabel("builds a channel reply URL beneath its thread root", {
    params: createChannelGraphMessageUrlParams({
      messageId: "reply-id",
-      replyToId: "root-id",
-    }),
-    expectedPath: buildExpectedChannelMessagePath({
-      messageId: "reply-id",
-      replyToId: "root-id",
+      threadRootMessageId: "root-id",
    }),
+    expectedUrl: `${GRAPH_CHANNEL_MESSAGES_ROOT}/root-id/replies/reply-id`,
  }),
-  withLabel("builds chat message urls", {
+  withLabel("builds a chat message URL", {
    params: {
      conversationType: "groupChat" as const,
      conversationId: "19:chat@thread.v2",
      messageId: "456",
    } satisfies GraphMessageUrlParams,
-    expectedPath: "/chats/19%3Achat%40thread.v2/messages/456",
+    expectedUrl: "https://graph.microsoft.com/v1.0/chats/19%3Achat%40thread.v2/messages/456",
  }),
 ];

@@ -261,30 +251,63 @@ describe("msteams attachment helpers", () => {
    });
  });

-  describe("buildMSTeamsGraphMessageUrls", () => {
-    it.each(GRAPH_URL_EXPECTATION_CASES)("$label", ({ params, expectedPath }) => {
-      const urls = buildMSTeamsGraphMessageUrls(params);
-      expect(urls[0]).toContain(expectedPath);
+  describe("buildMSTeamsGraphMessageUrl", () => {
+    it.each(GRAPH_MESSAGE_URL_CASES)("$label", ({ params, expectedUrl }) => {
+      expect(buildMSTeamsGraphMessageUrl(params)).toBe(expectedUrl);
    });

-    it("uses resolved Graph chat ID for personal DMs instead of Bot Framework a: ID", () => {
-      const urls = buildMSTeamsGraphMessageUrls({
-        conversationType: "personal",
-        conversationId: "19:real-graph-chat-id@unq.gbl.spaces",
-        messageId: "msg-1",
-      });
-      expect(urls).toHaveLength(1);
-      expect(urls[0]).toContain("/chats/19%3Areal-graph-chat-id%40unq.gbl.spaces/messages/msg-1");
+    it("fails closed when a canonical channel identifier is missing", () => {
+      expect(
+        buildMSTeamsGraphMessageUrl({
+          conversationType: "channel",
+          messageId: "message-id",
+          channelId: DEFAULT_CHANNEL_ID,
+        }),
+      ).toBeUndefined();
+      expect(
+        buildMSTeamsGraphMessageUrl({
+          conversationType: "channel",
+          teamAadGroupId: DEFAULT_CHANNEL_TEAM_ID,
+          channelId: DEFAULT_CHANNEL_ID,
+        }),
+      ).toBeUndefined();
    });

-    it("still builds URLs when a: conversation ID is passed (caller did not resolve)", () => {
-      const urls = buildMSTeamsGraphMessageUrls({
-        conversationType: "personal",
-        conversationId: "a:1dRsHCobZ1AxURzY",
-        messageId: "msg-1",
-      });
-      expect(urls).toHaveLength(1);
-      expect(urls[0]).toContain("/chats/a%3A1dRsHCobZ1AxURzY/messages/msg-1");
+    it("treats a matching thread root and message ID as a top-level message", () => {
+      expect(
+        buildMSTeamsGraphMessageUrl({
+          ...createChannelGraphMessageUrlParams({
+            messageId: "root-id",
+            threadRootMessageId: "root-id",
+          }),
+        }),
+      ).toBe(`${GRAPH_CHANNEL_MESSAGES_ROOT}/root-id`);
+    });
+
+    it("uses a resolved Graph chat ID for personal DMs", () => {
+      expect(
+        buildMSTeamsGraphMessageUrl({
+          conversationType: "personal",
+          conversationId: "19:real-graph-chat-id@unq.gbl.spaces",
+          messageId: "msg-1",
+        }),
+      ).toBe(
+        "https://graph.microsoft.com/v1.0/chats/19%3Areal-graph-chat-id%40unq.gbl.spaces/messages/msg-1",
+      );
+    });
+
+    it("encodes every channel path identifier", () => {
+      expect(
+        buildMSTeamsGraphMessageUrl({
+          conversationType: "channel",
+          teamAadGroupId: "team/id",
+          channelId: "channel id",
+          messageId: "reply/id",
+          threadRootMessageId: "root id",
+        }),
+      ).toBe(
+        "https://graph.microsoft.com/v1.0/teams/team%2Fid/channels/channel%20id/messages/root%20id/replies/reply%2Fid",
+      );
    });
  });

--- a/extensions/msteams/src/attachments.ts
+++ b/extensions/msteams/src/attachments.ts
@@ -4,7 +4,7 @@ export {
  isBotFrameworkPersonalChatId,
 } from "./attachments/bot-framework.js";
 export { downloadMSTeamsAttachments } from "./attachments/download.js";
-export { buildMSTeamsGraphMessageUrls, downloadMSTeamsGraphMedia } from "./attachments/graph.js";
+export { buildMSTeamsGraphMessageUrl, downloadMSTeamsGraphMedia } from "./attachments/graph.js";
 export {
  buildMSTeamsAttachmentPlaceholder,
  extractMSTeamsHtmlAttachmentIds,
--- a/extensions/msteams/src/attachments/bot-framework.ts
+++ b/extensions/msteams/src/attachments/bot-framework.ts
@@ -1,6 +1,11 @@
 // Msteams plugin module implements bot framework behavior.
 import { parseMediaContentLength } from "openclaw/plugin-sdk/media-runtime";
 import { readProviderJsonResponse } from "openclaw/plugin-sdk/provider-http";
+import {
+  resolveMSTeamsRequestTimeoutMs,
+  type MSTeamsRequestDeadline,
+  withMSTeamsRequestDeadline,
+} from "../request-timeout.js";
 import { getMSTeamsRuntime } from "../runtime.js";
 import { ensureUserAgentHeader } from "../user-agent.js";
 import {
@@ -81,6 +86,7 @@ async function fetchBotFrameworkAttachmentInfo(params: {
  fetchFnSupportsDispatcher?: boolean;
  resolveFn?: MSTeamsAttachmentResolveFn;
  logger?: MSTeamsAttachmentDownloadLogger;
+  deadline?: MSTeamsRequestDeadline;
 }): Promise<BotFrameworkAttachmentInfo | undefined> {
  const url = `${normalizeServiceUrl(params.serviceUrl)}/v3/attachments/${encodeURIComponent(params.attachmentId)}`;
  let response: Response;
@@ -98,6 +104,7 @@ async function fetchBotFrameworkAttachmentInfo(params: {
          policy: params.policy,
        }),
      },
+      timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
    });
  } catch (err) {
    params.logger?.warn?.("msteams botFramework attachmentInfo fetch failed", {
@@ -139,6 +146,7 @@ async function saveBotFrameworkAttachmentView(params: {
  fetchFnSupportsDispatcher?: boolean;
  resolveFn?: MSTeamsAttachmentResolveFn;
  logger?: MSTeamsAttachmentDownloadLogger;
+  deadline?: MSTeamsRequestDeadline;
 }): Promise<{ path: string; contentType?: string } | undefined> {
  const url = `${normalizeServiceUrl(params.serviceUrl)}/v3/attachments/${encodeURIComponent(params.attachmentId)}/views/${encodeURIComponent(params.viewId)}`;
  let response: Response;
@@ -156,6 +164,7 @@ async function saveBotFrameworkAttachmentView(params: {
          policy: params.policy,
        }),
      },
+      timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
    });
  } catch (err) {
    params.logger?.warn?.("msteams botFramework attachmentView fetch failed", {
@@ -198,6 +207,8 @@ async function saveBotFrameworkAttachmentView(params: {
      error: err instanceof Error ? err.message : String(err),
    });
    return undefined;
+  } finally {
+    await response.body?.cancel().catch(() => undefined);
  }
 }

@@ -217,6 +228,7 @@ export async function downloadMSTeamsBotFrameworkAttachment(params: {
  fetchFn?: typeof fetch;
  fetchFnSupportsDispatcher?: boolean;
  resolveFn?: MSTeamsAttachmentResolveFn;
+  deadline?: MSTeamsRequestDeadline;
  fileNameHint?: string | null;
  contentTypeHint?: string | null;
  preserveFilenames?: boolean;
@@ -225,6 +237,7 @@ export async function downloadMSTeamsBotFrameworkAttachment(params: {
  if (!params.serviceUrl || !params.attachmentId || !params.tokenProvider) {
    return undefined;
  }
+  const tokenProvider = params.tokenProvider;
  const policy: MSTeamsAttachmentFetchPolicy = resolveAttachmentFetchPolicy({
    allowHosts: params.allowHosts,
    authAllowHosts: params.authAllowHosts,
@@ -236,7 +249,11 @@ export async function downloadMSTeamsBotFrameworkAttachment(params: {

  let accessToken: string;
  try {
-    accessToken = await params.tokenProvider.getAccessToken(BOT_FRAMEWORK_SCOPE);
+    accessToken = await withMSTeamsRequestDeadline({
+      deadline: params.deadline,
+      label: "MS Teams Bot Framework token",
+      work: () => tokenProvider.getAccessToken(BOT_FRAMEWORK_SCOPE),
+    });
  } catch (err) {
    params.logger?.warn?.("msteams botFramework token acquisition failed", {
      error: err instanceof Error ? err.message : String(err),
@@ -256,6 +273,7 @@ export async function downloadMSTeamsBotFrameworkAttachment(params: {
    fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
    resolveFn: params.resolveFn,
    logger: params.logger,
+    deadline: params.deadline,
  });
  if (!info) {
    return undefined;
@@ -304,6 +322,7 @@ export async function downloadMSTeamsBotFrameworkAttachment(params: {
    fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
    resolveFn: params.resolveFn,
    logger: params.logger,
+    deadline: params.deadline,
  });
  if (!saved) {
    return undefined;
@@ -332,6 +351,7 @@ export async function downloadMSTeamsBotFrameworkAttachments(params: {
  fetchFn?: typeof fetch;
  fetchFnSupportsDispatcher?: boolean;
  resolveFn?: MSTeamsAttachmentResolveFn;
+  deadline?: MSTeamsRequestDeadline;
  fileNameHint?: string | null;
  contentTypeHint?: string | null;
  preserveFilenames?: boolean;
@@ -367,6 +387,7 @@ export async function downloadMSTeamsBotFrameworkAttachments(params: {
        fetchFn: params.fetchFn,
        fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
        resolveFn: params.resolveFn,
+        deadline: params.deadline,
        fileNameHint: params.fileNameHint,
        contentTypeHint: params.contentTypeHint,
        preserveFilenames: params.preserveFilenames,
--- a/extensions/msteams/src/attachments/download.ts
+++ b/extensions/msteams/src/attachments/download.ts
@@ -4,6 +4,11 @@ import {
  normalizeOptionalLowercaseString,
  normalizeOptionalString,
 } from "openclaw/plugin-sdk/string-coerce-runtime";
+import {
+  resolveMSTeamsRequestTimeoutMs,
+  type MSTeamsRequestDeadline,
+  withMSTeamsRequestDeadline,
+} from "../request-timeout.js";
 import { getMSTeamsRuntime } from "../runtime.js";
 import { downloadAndStoreMSTeamsRemoteMedia } from "./remote-media.js";
 import {
@@ -129,6 +134,7 @@ async function fetchWithAuthFallback(params: {
  requestInit?: RequestInit;
  resolveFn?: MSTeamsAttachmentResolveFn;
  policy: MSTeamsAttachmentFetchPolicy;
+  deadline?: MSTeamsRequestDeadline;
 }): Promise<Response> {
  const firstAttempt = await safeFetchWithPolicy({
    url: params.url,
@@ -137,6 +143,7 @@ async function fetchWithAuthFallback(params: {
    fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
    requestInit: params.requestInit,
    resolveFn: params.resolveFn,
+    timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
  });
  if (firstAttempt.ok) {
    return firstAttempt;
@@ -144,6 +151,7 @@ async function fetchWithAuthFallback(params: {
  if (!params.tokenProvider) {
    return firstAttempt;
  }
+  const tokenProvider = params.tokenProvider;
  if (firstAttempt.status !== 401 && firstAttempt.status !== 403) {
    return firstAttempt;
  }
@@ -156,7 +164,11 @@ async function fetchWithAuthFallback(params: {
  const fetchFn = params.fetchFn ?? fetch;
  for (const scope of scopes) {
    try {
-      const token = await params.tokenProvider.getAccessToken(scope);
+      const token = await withMSTeamsRequestDeadline({
+        deadline: params.deadline,
+        label: "MS Teams attachment token",
+        work: () => tokenProvider.getAccessToken(scope),
+      });
      const authHeaders = new Headers(params.requestInit?.headers);
      authHeaders.set("Authorization", `Bearer ${token}`);
      const authAttempt = await safeFetchWithPolicy({
@@ -169,6 +181,7 @@ async function fetchWithAuthFallback(params: {
          headers: authHeaders,
        },
        resolveFn: params.resolveFn,
+        timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
      });
      if (authAttempt.ok) {
        return authAttempt;
@@ -204,6 +217,7 @@ export async function downloadMSTeamsAttachments(params: {
  fetchFn?: typeof fetch;
  fetchFnSupportsDispatcher?: boolean;
  resolveFn?: MSTeamsAttachmentResolveFn;
+  deadline?: MSTeamsRequestDeadline;
  /** When true, embeds original filename in stored path for later extraction. */
  preserveFilenames?: boolean;
  /**
@@ -313,6 +327,7 @@ export async function downloadMSTeamsAttachments(params: {
            requestInit: init,
            resolveFn: params.resolveFn,
            policy,
+            deadline: params.deadline,
          }),
      });
      out.push(media);
--- a/extensions/msteams/src/attachments/graph.test.ts
+++ b/extensions/msteams/src/attachments/graph.test.ts
@@ -86,12 +86,16 @@ function oversizedGraphJson(payload: Record<string, unknown>): string {
  return JSON.stringify({ ...payload, padding: "x".repeat(16 * 1024 * 1024) });
 }

-type GuardedFetchParams = { url: string; init?: RequestInit };
+type GuardedFetchParams = { url: string; init?: RequestInit; timeoutMs?: number };

-function guardedFetchResult(params: GuardedFetchParams, response: Response) {
+function guardedFetchResult(
+  params: GuardedFetchParams,
+  response: Response,
+  release: () => Promise<void> = async () => {},
+) {
  return {
    response,
-    release: async () => {},
+    release,
    finalUrl: params.url,
  };
 }
@@ -281,6 +285,7 @@ describe("downloadMSTeamsGraphMedia hosted content $value fallback", () => {

    const guardCalls = vi.mocked(fetchWithSsrFGuard).mock.calls;
    for (const [call] of guardCalls) {
+      expect(call.timeoutMs).toBe(30_000);
      const headers = call.init?.headers;
      expect(headers).toBeInstanceOf(Headers);
      expect((headers as Headers).get("Authorization")).toBe("Bearer test-token");
@@ -326,6 +331,7 @@ describe("downloadMSTeamsGraphMedia hosted content $value fallback", () => {
      vi.mocked(safeFetchWithPolicy),
      "safeFetchWithPolicy call",
    );
+    expect(fetchParams.timeoutMs).toBe(30_000);
    expect(fetchParams.requestInit?.headers).toBeInstanceOf(Headers);
    const requestInit = fetchParams.requestInit;
    const headers = requestInit?.headers as Headers;
@@ -403,6 +409,42 @@ describe("downloadMSTeamsGraphMedia attachment sourcing and error logging", () =
    expect(result.attachmentCount).toBe(1);
  });

+  it("releases message metadata before starting nested SharePoint downloads", async () => {
+    const order: string[] = [];
+    vi.mocked(fetchWithSsrFGuard).mockImplementation(async (params: GuardedFetchParams) => {
+      if (params.url.endsWith("/messages/msg-release")) {
+        return guardedFetchResult(
+          params,
+          mockFetchResponse({
+            attachments: [
+              {
+                contentType: "reference",
+                contentUrl: "https://tenant.sharepoint.com/release.pdf",
+                name: "release.pdf",
+              },
+            ],
+          }),
+          async () => {
+            order.push("message-release");
+          },
+        );
+      }
+      return guardedFetchResult(params, mockFetchResponse({ value: [] }));
+    });
+    vi.mocked(downloadAndStoreMSTeamsRemoteMedia).mockImplementation(async () => {
+      order.push("sharepoint-download");
+      return { path: "/tmp/release.pdf", contentType: "application/pdf", placeholder: "[file]" };
+    });
+
+    await downloadMSTeamsGraphMedia({
+      messageUrl: "https://graph.microsoft.com/v1.0/chats/c/messages/msg-release",
+      tokenProvider: { getAccessToken: vi.fn(async () => "test-token") },
+      maxBytes: 10 * 1024 * 1024,
+    });
+
+    expect(order.slice(0, 2)).toEqual(["message-release", "sharepoint-download"]);
+  });
+
  it("skips message metadata when the Graph response exceeds the byte cap", async () => {
    mockGraphMediaFetch({
      messageId: "msg-huge",
@@ -453,6 +495,50 @@ describe("downloadMSTeamsGraphMedia attachment sourcing and error logging", () =
    expect((context as { error?: unknown }).error).toBe("network boom");
  });

+  it("keeps downloaded message attachments when hosted content lookup fails", async () => {
+    vi.mocked(fetchWithSsrFGuard).mockImplementation(async (params: GuardedFetchParams) => {
+      if (params.url.endsWith("/hostedContents")) {
+        throw new Error("hosted content unavailable");
+      }
+      return guardedFetchResult(
+        params,
+        mockFetchResponse({
+          attachments: [
+            {
+              contentType: "reference",
+              contentUrl: "https://tenant.sharepoint.com/partial.pdf",
+              name: "partial.pdf",
+            },
+          ],
+        }),
+      );
+    });
+    vi.mocked(downloadAndStoreMSTeamsRemoteMedia).mockResolvedValue({
+      path: "/tmp/partial.pdf",
+      contentType: "application/pdf",
+      placeholder: "[file]",
+    });
+    const logger = { warn: vi.fn() };
+
+    const result = await downloadMSTeamsGraphMedia({
+      messageUrl: "https://graph.microsoft.com/v1.0/chats/c/messages/msg-partial",
+      tokenProvider: { getAccessToken: vi.fn(async () => "test-token") },
+      maxBytes: 10 * 1024 * 1024,
+      logger,
+    });
+
+    expect(result.media).toEqual([
+      {
+        path: "/tmp/partial.pdf",
+        contentType: "application/pdf",
+        placeholder: "[file]",
+      },
+    ]);
+    expect(logger.warn).toHaveBeenCalledWith("msteams graph hostedContents fetch failed", {
+      error: "hosted content unavailable",
+    });
+  });
+
  it("logs a debug event when the message fetch returns non-ok", async () => {
    // If the message endpoint returns 403/404, we want that recorded so
    // operators can distinguish auth issues from empty result sets.
@@ -463,18 +549,18 @@ describe("downloadMSTeamsGraphMedia attachment sourcing and error logging", () =
      }
      return guardedFetchResult(params, mockFetchResponse({ error: "forbidden" }, 403));
    });
-    const log = { debug: vi.fn() };
+    const logger = { debug: vi.fn() };

    const result = await downloadMSTeamsGraphMedia({
      messageUrl: "https://graph.microsoft.com/v1.0/chats/c/messages/msg-403",
      tokenProvider: { getAccessToken: vi.fn(async () => "test-token") },
      maxBytes: 10 * 1024 * 1024,
-      log,
+      logger,
    });

    expect(result.media).toHaveLength(0);
    expect(result.attachmentStatus).toBe(403);
-    const [message, context] = requireFirstMockCall(log.debug, "message fetch debug event");
+    const [message, context] = requireFirstMockCall(logger.debug, "message fetch debug event");
    expect(message).toBe("graph media message fetch not ok");
    expect((context as { status?: unknown }).status).toBe(403);
  });
@@ -501,4 +587,27 @@ describe("downloadMSTeamsGraphMedia attachment sourcing and error logging", () =
    expect(message).toBe("msteams graph token acquisition failed");
    expect((context as { error?: unknown }).error).toBe("token expired");
  });
+
+  it("bounds stalled token acquisition to the shared operation deadline", async () => {
+    vi.useFakeTimers();
+    try {
+      const resultPromise = downloadMSTeamsGraphMedia({
+        messageUrl: "https://graph.microsoft.com/v1.0/chats/c/messages/msg-token-timeout",
+        tokenProvider: { getAccessToken: vi.fn(() => new Promise<string>(() => {})) },
+        maxBytes: 10 * 1024 * 1024,
+        deadline: {
+          label: "MS Teams inbound preprocessing",
+          timeoutMs: 50,
+          deadlineAtMs: Date.now() + 50,
+        },
+      });
+      const assertion = expect(resultPromise).resolves.toMatchObject({ tokenError: true });
+
+      await vi.advanceTimersByTimeAsync(51);
+      await assertion;
+      expect(fetchWithSsrFGuard).not.toHaveBeenCalled();
+    } finally {
+      vi.useRealTimers();
+    }
+  });
 });
--- a/extensions/msteams/src/attachments/graph.ts
+++ b/extensions/msteams/src/attachments/graph.ts
@@ -8,8 +8,12 @@ import {
  normalizeLowercaseStringOrEmpty,
  normalizeOptionalLowercaseString,
  normalizeOptionalString,
-  uniqueStrings,
 } from "openclaw/plugin-sdk/string-coerce-runtime";
+import {
+  resolveMSTeamsRequestTimeoutMs,
+  type MSTeamsRequestDeadline,
+  withMSTeamsRequestDeadline,
+} from "../request-timeout.js";
 import { getMSTeamsRuntime } from "../runtime.js";
 import { ensureUserAgentHeader } from "../user-agent.js";
 import { downloadMSTeamsAttachments } from "./download.js";
@@ -19,7 +23,6 @@ import {
  encodeGraphShareId,
  GRAPH_ROOT,
  inferPlaceholder,
-  readNestedString,
  isUrlAllowed,
  type MSTeamsAttachmentDownloadLogger,
  type MSTeamsAttachmentFetchPolicy,
@@ -33,7 +36,6 @@ import {
 import type {
  MSTeamsAccessTokenProvider,
  MSTeamsAttachmentLike,
-  MSTeamsGraphMediaLogger,
  MSTeamsGraphMediaResult,
  MSTeamsInboundMedia,
 } from "./types.js";
@@ -52,75 +54,40 @@ type GraphAttachment = {
  content?: unknown;
 };

-export function buildMSTeamsGraphMessageUrls(params: {
+export function buildMSTeamsGraphMessageUrl(params: {
  conversationType?: string | null;
  conversationId?: string | null;
  messageId?: string | null;
-  replyToId?: string | null;
-  conversationMessageId?: string | null;
-  channelData?: unknown;
-}): string[] {
+  threadRootMessageId?: string | null;
+  teamAadGroupId?: string | null;
+  channelId?: string | null;
+}): string | undefined {
  const conversationType = normalizeLowercaseStringOrEmpty(params.conversationType ?? "");
-  const messageIdCandidates = new Set<string>();
-  const pushCandidate = (value: string | null | undefined) => {
-    const trimmed = normalizeOptionalString(value) ?? "";
-    if (trimmed) {
-      messageIdCandidates.add(trimmed);
-    }
-  };
-
-  pushCandidate(params.messageId);
-  pushCandidate(params.conversationMessageId);
-  pushCandidate(readNestedString(params.channelData, ["messageId"]));
-  pushCandidate(readNestedString(params.channelData, ["teamsMessageId"]));
-
-  const replyToId = normalizeOptionalString(params.replyToId) ?? "";
+  const messageId = normalizeOptionalString(params.messageId);
+  if (!messageId) {
+    return undefined;
+  }

  if (conversationType === "channel") {
-    const teamId =
-      readNestedString(params.channelData, ["team", "id"]) ??
-      readNestedString(params.channelData, ["teamId"]);
-    const channelId =
-      readNestedString(params.channelData, ["channel", "id"]) ??
-      readNestedString(params.channelData, ["channelId"]) ??
-      readNestedString(params.channelData, ["teamsChannelId"]);
-    if (!teamId || !channelId) {
-      return [];
+    const teamAadGroupId = normalizeOptionalString(params.teamAadGroupId);
+    const channelId = normalizeOptionalString(params.channelId);
+    if (!teamAadGroupId || !channelId) {
+      return undefined;
    }
-    const urls: string[] = [];
-    if (replyToId) {
-      for (const candidate of messageIdCandidates) {
-        if (candidate === replyToId) {
-          continue;
-        }
-        urls.push(
-          `${GRAPH_ROOT}/teams/${encodeURIComponent(teamId)}/channels/${encodeURIComponent(channelId)}/messages/${encodeURIComponent(replyToId)}/replies/${encodeURIComponent(candidate)}`,
-        );
-      }
-    }
-    if (messageIdCandidates.size === 0 && replyToId) {
-      messageIdCandidates.add(replyToId);
-    }
-    for (const candidate of messageIdCandidates) {
-      urls.push(
-        `${GRAPH_ROOT}/teams/${encodeURIComponent(teamId)}/channels/${encodeURIComponent(channelId)}/messages/${encodeURIComponent(candidate)}`,
-      );
-    }
-    return uniqueStrings(urls);
+    const messageRoot = `${GRAPH_ROOT}/teams/${encodeURIComponent(teamAadGroupId)}/channels/${encodeURIComponent(channelId)}/messages`;
+    const threadRootMessageId = normalizeOptionalString(params.threadRootMessageId);
+    // Graph addresses replies only beneath the thread root. A bare reply ID is
+    // not a top-level message, while fetching the root would attach the wrong file.
+    return threadRootMessageId && threadRootMessageId !== messageId
+      ? `${messageRoot}/${encodeURIComponent(threadRootMessageId)}/replies/${encodeURIComponent(messageId)}`
+      : `${messageRoot}/${encodeURIComponent(messageId)}`;
  }

-  const chatId = params.conversationId?.trim() || readNestedString(params.channelData, ["chatId"]);
+  const chatId = normalizeOptionalString(params.conversationId);
  if (!chatId) {
-    return [];
+    return undefined;
  }
-  if (messageIdCandidates.size === 0 && replyToId) {
-    messageIdCandidates.add(replyToId);
-  }
-  const urls = Array.from(messageIdCandidates).map(
-    (candidate) =>
-      `${GRAPH_ROOT}/chats/${encodeURIComponent(chatId)}/messages/${encodeURIComponent(candidate)}`,
-  );
-  return uniqueStrings(urls);
+  return `${GRAPH_ROOT}/chats/${encodeURIComponent(chatId)}/messages/${encodeURIComponent(messageId)}`;
 }

 async function fetchGraphCollection(params: {
@@ -128,6 +95,7 @@ async function fetchGraphCollection(params: {
  accessToken: string;
  fetchFn?: typeof fetch;
  ssrfPolicy?: SsrFPolicy;
+  deadline?: MSTeamsRequestDeadline;
 }): Promise<{ status: number; items: unknown[] }> {
  const fetchFn = params.fetchFn ?? fetch;
  const { response, release } = await fetchWithSsrFGuard({
@@ -138,6 +106,7 @@ async function fetchGraphCollection(params: {
    },
    policy: params.ssrfPolicy,
    auditContext: "msteams.graph.collection",
+    timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
  });
  try {
    const status = response.status;
@@ -189,13 +158,23 @@ async function downloadGraphHostedContent(params: {
  preserveFilenames?: boolean;
  ssrfPolicy?: SsrFPolicy;
  logger?: MSTeamsAttachmentDownloadLogger;
-}): Promise<{ media: MSTeamsInboundMedia[]; status: number; count: number }> {
-  const hosted = (await fetchGraphCollection({
-    url: `${params.messageUrl}/hostedContents`,
-    accessToken: params.accessToken,
-    fetchFn: params.fetchFn,
-    ssrfPolicy: params.ssrfPolicy,
-  })) as { status: number; items: GraphHostedContent[] };
+  deadline?: MSTeamsRequestDeadline;
+}): Promise<{ media: MSTeamsInboundMedia[]; status?: number; count: number }> {
+  let hosted: { status: number; items: GraphHostedContent[] };
+  try {
+    hosted = (await fetchGraphCollection({
+      url: `${params.messageUrl}/hostedContents`,
+      accessToken: params.accessToken,
+      fetchFn: params.fetchFn,
+      ssrfPolicy: params.ssrfPolicy,
+      deadline: params.deadline,
+    })) as { status: number; items: GraphHostedContent[] };
+  } catch (err) {
+    params.logger?.warn?.("msteams graph hostedContents fetch failed", {
+      error: err instanceof Error ? err.message : String(err),
+    });
+    return { media: [], count: 0 };
+  }
  if (hosted.items.length === 0) {
    return { media: [], status: hosted.status, count: 0 };
  }
@@ -218,6 +197,7 @@ async function downloadGraphHostedContent(params: {
        },
        policy: params.ssrfPolicy,
        auditContext: "msteams.graph.hostedContent.value",
+        timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
      });
      try {
        if (!valRes.ok) {
@@ -257,29 +237,31 @@ export async function downloadMSTeamsGraphMedia(params: {
  fetchFn?: typeof fetch;
  fetchFnSupportsDispatcher?: boolean;
  resolveFn?: MSTeamsAttachmentResolveFn;
+  deadline?: MSTeamsRequestDeadline;
  /** When true, embeds original filename in stored path for later extraction. */
  preserveFilenames?: boolean;
  /** Optional logger used to surface Graph/SharePoint fetch errors. */
  logger?: MSTeamsAttachmentDownloadLogger;
-  /** Back-compat diagnostic logger used by older tests/callers. */
-  log?: MSTeamsGraphMediaLogger;
 }): Promise<MSTeamsGraphMediaResult> {
  if (!params.messageUrl || !params.tokenProvider) {
    return { media: [] };
  }
+  const tokenProvider = params.tokenProvider;
  const policy: MSTeamsAttachmentFetchPolicy = resolveAttachmentFetchPolicy({
    allowHosts: params.allowHosts,
    authAllowHosts: params.authAllowHosts,
  });
  const ssrfPolicy = resolveMediaSsrfPolicy(policy.allowHosts);
  const messageUrl = params.messageUrl;
-  const debugLog =
-    params.log ?? (params.logger as MSTeamsGraphMediaLogger | undefined) ?? undefined;
  let accessToken: string;
  try {
-    accessToken = await params.tokenProvider.getAccessToken("https://graph.microsoft.com");
+    accessToken = await withMSTeamsRequestDeadline({
+      deadline: params.deadline,
+      label: "MS Teams Graph media token",
+      work: () => tokenProvider.getAccessToken("https://graph.microsoft.com"),
+    });
  } catch (err) {
-    debugLog?.debug?.("graph media token acquisition failed", {
+    params.logger?.debug?.("graph media token acquisition failed", {
      messageUrl,
      error: err instanceof Error ? err.message : String(err),
    });
@@ -293,6 +275,7 @@ export async function downloadMSTeamsGraphMedia(params: {
  const sharePointMedia: MSTeamsInboundMedia[] = [];
  const downloadedReferenceUrls = new Set<string>();
  let messageAttachments: GraphAttachment[] = [];
+  let referenceAttachments: GraphAttachment[] = [];
  let messageStatus: number | undefined;
  try {
    const { response: msgRes, release } = await fetchWithSsrFGuard({
@@ -303,6 +286,7 @@ export async function downloadMSTeamsGraphMedia(params: {
      },
      policy: ssrfPolicy,
      auditContext: "msteams.graph.message",
+      timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
    });
    try {
      messageStatus = msgRes.status;
@@ -317,7 +301,7 @@ export async function downloadMSTeamsGraphMedia(params: {
            "MS Teams Graph message",
          );
        } catch (err) {
-          debugLog?.debug?.("graph media message parse failed", {
+          params.logger?.debug?.("graph media message parse failed", {
            messageUrl,
            error: err instanceof Error ? err.message : String(err),
          });
@@ -329,67 +313,11 @@ export async function downloadMSTeamsGraphMedia(params: {
        }
        messageAttachments = Array.isArray(msgData.attachments) ? msgData.attachments : [];

-        const spAttachments = messageAttachments.filter(
+        referenceAttachments = messageAttachments.filter(
          (a) => a.contentType === "reference" && a.contentUrl && a.name,
        );
-        for (const att of spAttachments) {
-          const name = att.name ?? "file";
-          const shareUrl = att.contentUrl ?? "";
-          if (!shareUrl) {
-            continue;
-          }
-
-          try {
-            const sharesUrl = `${GRAPH_ROOT}/shares/${encodeGraphShareId(shareUrl)}/driveItem/content`;
-            if (!isUrlAllowed(sharesUrl, policy.allowHosts)) {
-              debugLog?.debug?.("graph media sharepoint url not in allowHosts", {
-                messageUrl,
-                sharesUrl,
-              });
-              continue;
-            }
-
-            const media = await downloadAndStoreMSTeamsRemoteMedia({
-              url: sharesUrl,
-              filePathHint: name,
-              maxBytes: params.maxBytes,
-              contentTypeHint: "application/octet-stream",
-              preserveFilenames: params.preserveFilenames,
-              ssrfPolicy,
-              useDirectFetch: true,
-              fetchImpl: async (input, init) => {
-                const requestUrl = resolveRequestUrl(input);
-                const headers = ensureUserAgentHeader(init?.headers);
-                applyAuthorizationHeaderForUrl({
-                  headers,
-                  url: requestUrl,
-                  authAllowHosts: policy.authAllowHosts,
-                  bearerToken: accessToken,
-                });
-                return await safeFetchWithPolicy({
-                  url: requestUrl,
-                  policy,
-                  fetchFn,
-                  fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
-                  requestInit: {
-                    ...init,
-                    headers,
-                  },
-                  resolveFn: params.resolveFn,
-                });
-              },
-            });
-            sharePointMedia.push(media);
-            downloadedReferenceUrls.add(shareUrl);
-          } catch (err) {
-            params.logger?.warn?.("msteams SharePoint reference download failed", {
-              error: err instanceof Error ? err.message : String(err),
-              name,
-            });
-          }
-        }
      } else {
-        debugLog?.debug?.("graph media message fetch not ok", {
+        params.logger?.debug?.("graph media message fetch not ok", {
          messageUrl,
          status: messageStatus,
        });
@@ -398,7 +326,7 @@ export async function downloadMSTeamsGraphMedia(params: {
      await release();
    }
  } catch (err) {
-    debugLog?.debug?.("graph media message fetch failed", {
+    params.logger?.debug?.("graph media message fetch failed", {
      messageUrl,
      error: err instanceof Error ? err.message : String(err),
    });
@@ -407,6 +335,66 @@ export async function downloadMSTeamsGraphMedia(params: {
    });
  }

+  // The message response owns a pinned dispatcher. Release it before nested
+  // SharePoint requests so one metadata connection never spans child downloads.
+  for (const att of referenceAttachments) {
+    const name = att.name ?? "file";
+    const shareUrl = att.contentUrl ?? "";
+    if (!shareUrl) {
+      continue;
+    }
+
+    try {
+      const sharesUrl = `${GRAPH_ROOT}/shares/${encodeGraphShareId(shareUrl)}/driveItem/content`;
+      if (!isUrlAllowed(sharesUrl, policy.allowHosts)) {
+        params.logger?.debug?.("graph media sharepoint url not in allowHosts", {
+          messageUrl,
+          sharesUrl,
+        });
+        continue;
+      }
+
+      const media = await downloadAndStoreMSTeamsRemoteMedia({
+        url: sharesUrl,
+        filePathHint: name,
+        maxBytes: params.maxBytes,
+        contentTypeHint: "application/octet-stream",
+        preserveFilenames: params.preserveFilenames,
+        ssrfPolicy,
+        useDirectFetch: true,
+        fetchImpl: async (input, init) => {
+          const requestUrl = resolveRequestUrl(input);
+          const headers = ensureUserAgentHeader(init?.headers);
+          applyAuthorizationHeaderForUrl({
+            headers,
+            url: requestUrl,
+            authAllowHosts: policy.authAllowHosts,
+            bearerToken: accessToken,
+          });
+          return await safeFetchWithPolicy({
+            url: requestUrl,
+            policy,
+            fetchFn,
+            fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
+            requestInit: {
+              ...init,
+              headers,
+            },
+            resolveFn: params.resolveFn,
+            timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
+          });
+        },
+      });
+      sharePointMedia.push(media);
+      downloadedReferenceUrls.add(shareUrl);
+    } catch (err) {
+      params.logger?.warn?.("msteams SharePoint reference download failed", {
+        error: err instanceof Error ? err.message : String(err),
+        name,
+      });
+    }
+  }
+
  const hosted = await downloadGraphHostedContent({
    accessToken,
    messageUrl,
@@ -415,6 +403,7 @@ export async function downloadMSTeamsGraphMedia(params: {
    preserveFilenames: params.preserveFilenames,
    ssrfPolicy,
    logger: params.logger,
+    deadline: params.deadline,
  });

  const normalizedAttachments = messageAttachments.map(normalizeGraphAttachment);
@@ -443,6 +432,7 @@ export async function downloadMSTeamsGraphMedia(params: {
      fetchFn: params.fetchFn,
      fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
      resolveFn: params.resolveFn,
+      deadline: params.deadline,
      preserveFilenames: params.preserveFilenames,
      logger: params.logger,
    });
--- a/extensions/msteams/src/attachments/remote-media.test.ts
+++ b/extensions/msteams/src/attachments/remote-media.test.ts
@@ -145,6 +145,25 @@ describe("downloadAndStoreMSTeamsRemoteMedia", () => {
      expect(runtimeSaveRemoteMediaMock).not.toHaveBeenCalled();
    });

+    it("cancels a guarded response when storage fails before reading the body", async () => {
+      const cancel = vi.fn();
+      const body = new ReadableStream<Uint8Array>({ cancel });
+      const fetchImpl = vi.fn(async () => new Response(body, { status: 200 }));
+      saveResponseMediaMock.mockRejectedValueOnce(new Error("mkdir failed"));
+
+      await expect(
+        downloadAndStoreMSTeamsRemoteMedia({
+          url: "https://graph.microsoft.com/v1.0/shares/abc/driveItem/content",
+          filePathHint: "file.png",
+          maxBytes: 1024,
+          useDirectFetch: true,
+          fetchImpl,
+        }),
+      ).rejects.toThrow("mkdir failed");
+
+      expect(cancel).toHaveBeenCalledTimes(1);
+    });
+
    it("falls back to the runtime saveRemoteMedia path when useDirectFetch is omitted", async () => {
      // Non-SharePoint caller, no pre-validated fetchImpl: make sure the strict
      // SSRF dispatcher path is still used.
--- a/extensions/msteams/src/attachments/remote-media.ts
+++ b/extensions/msteams/src/attachments/remote-media.ts
@@ -21,13 +21,19 @@ async function saveRemoteMediaDirect(params: {
  originalFilename?: string;
 }): Promise<SavedRemoteMedia> {
  const response = await params.fetchImpl(params.url, { redirect: "follow" });
-  return await saveResponseMedia(response, {
-    sourceUrl: params.url,
-    filePathHint: params.filePathHint,
-    maxBytes: params.maxBytes,
-    fallbackContentType: params.contentTypeHint,
-    originalFilename: params.originalFilename,
-  });
+  try {
+    return await saveResponseMedia(response, {
+      sourceUrl: params.url,
+      filePathHint: params.filePathHint,
+      maxBytes: params.maxBytes,
+      fallbackContentType: params.contentTypeHint,
+      originalFilename: params.originalFilename,
+    });
+  } finally {
+    // Guarded responses release their pinned dispatcher on EOF or cancel. A
+    // storage failure can happen before the body is read, so always cancel it.
+    await response.body?.cancel().catch(() => undefined);
+  }
 }

 export async function downloadAndStoreMSTeamsRemoteMedia(params: {
--- 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 { MSTEAMS_REQUEST_TIMEOUT_MS } from "../request-timeout.js";
 import { responseWithRelease } from "../response-with-release.js";
 import type { MSTeamsAttachmentLike } from "./types.js";

@@ -467,11 +468,12 @@ export type MSTeamsAttachmentFetchPolicy = {

 /**
 * Logger surface for attachment download errors. Structured so callers can
- * pass `MSTeamsMonitorLogger` directly without adapters. Optional `warn`/
- * `error` methods prevent silent swallowing of fetch failures — see issue
+ * pass `MSTeamsMonitorLogger` directly without adapters. Optional methods
+ * prevent silent swallowing of fetch failures — see issue
 * #63396 where empty `catch {}` blocks hid a Node 24+ undici incompatibility.
 */
 export type MSTeamsAttachmentDownloadLogger = {
+  debug?: (message: string, meta?: Record<string, unknown>) => void;
  warn?: (message: string, meta?: Record<string, unknown>) => void;
  error?: (message: string, meta?: Record<string, unknown>) => void;
 };
@@ -604,6 +606,7 @@ export async function safeFetch(params: {
  fetchFnSupportsDispatcher?: boolean;
  requestInit?: RequestInit;
  resolveFn?: MSTeamsAttachmentResolveFn;
+  timeoutMs?: number;
 }): Promise<Response> {
  const resolveFn = params.resolveFn ?? lookup;
  const hasDispatcher = Boolean(
@@ -646,6 +649,7 @@ export async function safeFetch(params: {
      retainAuthorizationRedirectHostnameAllowlist:
        resolveRetainedAuthorizationRedirectHostnameAllowlist(params.authorizationAllowHosts),
      auditContext: "msteams.attachment",
+      timeoutMs: params.timeoutMs ?? MSTEAMS_REQUEST_TIMEOUT_MS,
    });
    return responseWithRelease(guarded.response, guarded.release);
  }
@@ -723,6 +727,7 @@ export async function safeFetchWithPolicy(params: {
  fetchFnSupportsDispatcher?: boolean;
  requestInit?: RequestInit;
  resolveFn?: MSTeamsAttachmentResolveFn;
+  timeoutMs?: number;
 }): Promise<Response> {
  return await safeFetch({
    url: params.url,
@@ -732,5 +737,6 @@ export async function safeFetchWithPolicy(params: {
    fetchFnSupportsDispatcher: params.fetchFnSupportsDispatcher,
    requestInit: params.requestInit,
    resolveFn: params.resolveFn,
+    timeoutMs: params.timeoutMs,
  });
 }
--- a/extensions/msteams/src/attachments/types.ts
+++ b/extensions/msteams/src/attachments/types.ts
@@ -37,13 +37,3 @@ export type MSTeamsGraphMediaResult = {
  messageUrl?: string;
  tokenError?: boolean;
 };
-
-/**
- * Narrow logger surface used by `downloadMSTeamsGraphMedia` for diagnostic
- * events. Accepting an optional callback keeps the helper testable without
- * pulling in the full channel logger type, while still allowing the monitor
- * handler to forward its plugin logger.
- */
-export type MSTeamsGraphMediaLogger = {
-  debug?: (message: string, meta?: Record<string, unknown>) => void;
-};
--- a/extensions/msteams/src/channel.test.ts
+++ b/extensions/msteams/src/channel.test.ts
@@ -76,6 +76,15 @@ describe("msteams config schema", () => {
    }
  });

+  it("accepts the opt-in Graph media fallback", () => {
+    const res = MSTeamsConfigSchema.safeParse({ graphMediaFallback: true });
+
+    expect(res.success).toBe(true);
+    if (res.success) {
+      expect(res.data.graphMediaFallback).toBe(true);
+    }
+  });
+
  it("accepts replyStyle at global/team/channel levels", () => {
    const res = MSTeamsConfigSchema.safeParse({
      replyStyle: "top-level",
--- a/extensions/msteams/src/config-ui-hints.ts
+++ b/extensions/msteams/src/config-ui-hints.ts
@@ -18,6 +18,10 @@ export const msTeamsChannelConfigUiHints = {
    label: "MS Teams Service URL",
    help: "Bot Connector service URL for SDK proactive sends/edits/deletes. Set with cloud for USGov/DoD; set alone for GCC.",
  },
+  graphMediaFallback: {
+    label: "MS Teams Graph Media Fallback",
+    help: "Query Microsoft Graph for unresolved channel or group-chat HTML media. Adds one lookup per matching message when enabled (default: false).",
+  },
  streaming: {
    label: "MS Teams Streaming",
    help: 'Microsoft Teams preview/progress streaming mode: "off" | "partial" | "block" | "progress". Personal chats use Teams native streaminfo progress when available.',
--- a/extensions/msteams/src/conversation-store-helpers.ts
+++ b/extensions/msteams/src/conversation-store-helpers.ts
@@ -38,12 +38,8 @@ export function mergeStoredConversationReference(
    // Preserve fields from the previous entry that may not be present on every
    // inbound activity. Without this, sparse activities (e.g. conversationUpdate,
    // reactions) would clear previously captured values. Some fields are only
-    // populated opportunistically, such as timezone from clientInfo entities and
-    // graphChatId from Graph lookups used for DM media downloads.
+    // populated opportunistically, such as timezone from clientInfo entities.
    ...(existing?.timezone && !incoming.timezone ? { timezone: existing.timezone } : {}),
-    ...(existing?.graphChatId && !incoming.graphChatId
-      ? { graphChatId: existing.graphChatId }
-      : {}),
    ...(existing?.tenantId && !incoming.tenantId ? { tenantId: existing.tenantId } : {}),
    ...(existing?.aadObjectId && !incoming.aadObjectId
      ? { aadObjectId: existing.aadObjectId }
--- a/extensions/msteams/src/conversation-store-state.test.ts
+++ b/extensions/msteams/src/conversation-store-state.test.ts
@@ -139,7 +139,7 @@ describe("msteams conversation store (plugin state)", () => {
    });
  });

-  it("serializes concurrent upserts so sparse activities do not drop preserved fields", async () => {
+  it("serializes concurrent upserts so sparse activities preserve independent fields", async () => {
    const stateDir = await fs.promises.mkdtemp(path.join(os.tmpdir(), "openclaw-msteams-store-"));
    const store = createMSTeamsConversationStoreState({ stateDir });

@@ -148,7 +148,6 @@ describe("msteams conversation store (plugin state)", () => {
      channelId: "msteams",
      serviceUrl: "https://service.example.com",
      user: { id: "u1" },
-      graphChatId: "19:resolved@unq.gbl.spaces",
    });

    await Promise.all([
@@ -169,7 +168,6 @@ describe("msteams conversation store (plugin state)", () => {
    ]);

    await expect(store.get("conv-race")).resolves.toMatchObject({
-      graphChatId: "19:resolved@unq.gbl.spaces",
      timezone: "Europe/London",
      tenantId: "tenant-1",
    });
--- a/extensions/msteams/src/conversation-store.shared.test.ts
+++ b/extensions/msteams/src/conversation-store.shared.test.ts
@@ -223,42 +223,6 @@ describe.each(storeFactories)("msteams conversation store ($name)", ({ createSto
    }
  });

-  it("preserves graphChatId across upserts that omit it", async () => {
-    const store = await createStore();
-
-    vi.useFakeTimers();
-    try {
-      vi.setSystemTime(new Date("2026-03-25T20:00:00.000Z"));
-      await store.upsert("conv-graph", {
-        conversation: { id: "conv-graph", conversationType: "personal" },
-        channelId: "msteams",
-        serviceUrl: "https://service.example.com",
-        user: { id: "u1" },
-        graphChatId: "19:resolved-chat-id@unq.gbl.spaces",
-      });
-
-      vi.setSystemTime(new Date("2026-03-25T20:01:00.000Z"));
-      // Second upsert without graphChatId (normal activity-based upsert)
-      await store.upsert("conv-graph", {
-        conversation: { id: "conv-graph", conversationType: "personal" },
-        channelId: "msteams",
-        serviceUrl: "https://service.example.com",
-        user: { id: "u1" },
-      });
-
-      await expect(store.get("conv-graph")).resolves.toEqual({
-        conversation: { id: "conv-graph", conversationType: "personal" },
-        channelId: "msteams",
-        serviceUrl: "https://service.example.com",
-        user: { id: "u1" },
-        graphChatId: "19:resolved-chat-id@unq.gbl.spaces",
-        lastSeenAt: "2026-03-25T20:01:00.000Z",
-      });
-    } finally {
-      vi.useRealTimers();
-    }
-  });
-
  it("prefers the freshest personal conversation for repeated upserts of the same user", async () => {
    const store = await createStore();

--- a/extensions/msteams/src/conversation-store.ts
+++ b/extensions/msteams/src/conversation-store.ts
@@ -43,13 +43,6 @@ export type StoredConversationReference = {
  serviceUrl?: string;
  /** Locale */
  locale?: string;
-  /**
-   * Cached Graph API chat ID (format: `19:xxx@thread.tacv2` or `19:xxx@unq.gbl.spaces`).
-   * Bot Framework conversation IDs for personal DMs use a different format (`a:1xxx` or
-   * `8:orgid:xxx`) that the Graph API does not accept. This field caches the resolved
-   * Graph-native chat ID so we don't need to re-query the API on every send.
-   */
-  graphChatId?: string;
  /** IANA timezone from Teams clientInfo entity (e.g. "America/New_York") */
  timezone?: string;
 };
--- a/extensions/msteams/src/graph-messages.actions.test.ts
+++ b/extensions/msteams/src/graph-messages.actions.test.ts
@@ -194,8 +194,8 @@ describe("reactMessageMSTeams", () => {

  it("resolves user: target through conversation store", async () => {
    mockState.findPreferredDmByUserId.mockResolvedValue({
-      conversationId: "a:bot-id",
-      reference: { graphChatId: "19:dm-chat@thread.tacv2" },
+      conversationId: "19:dm-chat@thread.tacv2",
+      reference: {},
    });
    mockState.postGraphBetaJson.mockResolvedValue(undefined);

--- a/extensions/msteams/src/graph-messages.read.test.ts
+++ b/extensions/msteams/src/graph-messages.read.test.ts
@@ -23,31 +23,7 @@ beforeAll(async () => {
 });

 describe("getMessageMSTeams", () => {
-  it("resolves user: target using graphChatId from store", async () => {
-    mockState.findPreferredDmByUserId.mockResolvedValue({
-      conversationId: "a:bot-framework-dm-id",
-      reference: { graphChatId: "19:graph-native-chat@thread.tacv2" },
-    });
-    mockState.fetchGraphJson.mockResolvedValue({
-      id: "msg-1",
-      body: { content: "From user DM" },
-      createdDateTime: "2026-03-23T12:00:00Z",
-    });
-
-    await getMessageMSTeams({
-      cfg: {} as OpenClawConfig,
-      to: "user:aad-object-id-123",
-      messageId: "msg-1",
-    });
-
-    expect(mockState.findPreferredDmByUserId).toHaveBeenCalledWith("aad-object-id-123");
-    expect(mockState.fetchGraphJson).toHaveBeenCalledWith({
-      token: TOKEN,
-      path: `/chats/${encodeURIComponent("19:graph-native-chat@thread.tacv2")}/messages/msg-1`,
-    });
-  });
-
-  it("falls back to conversationId when it starts with 19:", async () => {
+  it("resolves user targets whose stored conversation ID is Graph-native", async () => {
    mockState.findPreferredDmByUserId.mockResolvedValue({
      conversationId: "19:resolved-chat@thread.tacv2",
      reference: {},
@@ -82,7 +58,7 @@ describe("getMessageMSTeams", () => {
    ).rejects.toThrow("No conversation found for user:unknown-user");
  });

-  it("throws when user: target has Bot Framework ID and no graphChatId", async () => {
+  it("throws when user: target has an opaque Bot Framework ID", async () => {
    mockState.findPreferredDmByUserId.mockResolvedValue({
      conversationId: "a:bot-framework-dm-id",
      reference: {},
--- a/extensions/msteams/src/graph-messages.search.test.ts
+++ b/extensions/msteams/src/graph-messages.search.test.ts
@@ -208,8 +208,8 @@ describe("searchMessagesMSTeams", () => {

  it("resolves user: target through conversation store", async () => {
    mockState.findPreferredDmByUserId.mockResolvedValue({
-      conversationId: "a:bot-id",
-      reference: { graphChatId: "19:dm-chat@thread.tacv2" },
+      conversationId: "19:dm-chat@thread.tacv2",
+      reference: {},
    });
    mockState.fetchGraphJson.mockResolvedValue({ value: [] });

--- a/extensions/msteams/src/graph-messages.ts
+++ b/extensions/msteams/src/graph-messages.ts
@@ -85,18 +85,12 @@ export async function resolveGraphConversationId(to: string): Promise<string> {
    );
  }

-  // Prefer the cached Graph-native chat ID (19:xxx format) over the Bot Framework
-  // conversation ID, which may be in a non-Graph format (a:xxx / 8:orgid:xxx) for
-  // personal DMs. send-context.ts resolves and caches this on first send.
-  if (found.reference.graphChatId) {
-    return found.reference.graphChatId;
-  }
  if (found.conversationId.startsWith("19:")) {
    return found.conversationId;
  }
  throw new Error(
    `Conversation for user:${cleaned} uses a Bot Framework ID (${found.conversationId}) ` +
-      "that Graph API does not accept. Send a message to this user first so the Graph chat ID is cached.",
+      "that Graph API does not accept. Use a Graph-native conversation:19:... target when available.",
  );
 }

--- a/extensions/msteams/src/graph-thread.test.ts
+++ b/extensions/msteams/src/graph-thread.test.ts
@@ -1,12 +1,10 @@
 // Msteams tests cover graph thread plugin behavior.
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import {
-  _teamGroupIdCacheForTest,
  fetchChannelMessage,
  fetchChatMessageText,
  fetchThreadReplies,
  formatThreadContext,
-  resolveTeamGroupId,
  stripHtmlFromTeamsMessage,
 } from "./graph-thread.js";
 import { fetchGraphJson } from "./graph.js";
@@ -62,100 +60,6 @@ describe("stripHtmlFromTeamsMessage", () => {
  });
 });

-describe("resolveTeamGroupId", () => {
-  beforeEach(() => {
-    vi.mocked(fetchGraphJson).mockReset();
-    _teamGroupIdCacheForTest.clear();
-  });
-
-  it("fetches team id from Graph and caches it", async () => {
-    vi.mocked(fetchGraphJson).mockResolvedValueOnce({ id: "group-guid-1" } as never);
-
-    const result = await resolveTeamGroupId("tok", "team-123");
-    expect(result).toBe("group-guid-1");
-    expect(fetchGraphJson).toHaveBeenCalledWith({
-      token: "tok",
-      path: "/teams/team-123?$select=id",
-    });
-  });
-
-  it("returns cached value without calling Graph again", async () => {
-    vi.mocked(fetchGraphJson).mockResolvedValueOnce({ id: "group-guid-2" } as never);
-
-    await resolveTeamGroupId("tok", "team-456");
-    await resolveTeamGroupId("tok", "team-456");
-
-    expect(fetchGraphJson).toHaveBeenCalledTimes(1);
-  });
-
-  it("does not cache team ids when the expiry would exceed a valid Date", async () => {
-    vi.useFakeTimers();
-    vi.setSystemTime(new Date(8_640_000_000_000_000));
-    try {
-      vi.mocked(fetchGraphJson).mockResolvedValue({ id: "group-guid-boundary" } as never);
-
-      await resolveTeamGroupId("tok", "team-boundary");
-      await resolveTeamGroupId("tok", "team-boundary");
-
-      expect(fetchGraphJson).toHaveBeenCalledTimes(2);
-    } finally {
-      vi.useRealTimers();
-    }
-  });
-
-  it("evicts cached team ids when the current clock is invalid", async () => {
-    vi.mocked(fetchGraphJson).mockResolvedValue({ id: "group-guid-invalid-clock" } as never);
-
-    await resolveTeamGroupId("tok", "team-invalid-clock");
-    const dateNow = vi.spyOn(Date, "now").mockReturnValue(Number.NaN);
-    try {
-      await resolveTeamGroupId("tok", "team-invalid-clock");
-    } finally {
-      dateNow.mockRestore();
-    }
-
-    expect(fetchGraphJson).toHaveBeenCalledTimes(2);
-  });
-
-  it("falls back to conversationTeamId when Graph returns no id", async () => {
-    vi.mocked(fetchGraphJson).mockResolvedValueOnce({} as never);
-
-    const result = await resolveTeamGroupId("tok", "team-fallback");
-    expect(result).toBe("team-fallback");
-  });
-
-  it("caps cache at 500 entries — evicts oldest on overflow", async () => {
-    vi.mocked(fetchGraphJson).mockResolvedValue({ id: "group-guid" } as never);
-
-    const token = "test-token";
-    for (let i = 0; i < 500; i++) {
-      await resolveTeamGroupId(token, `team-${i}`);
-    }
-    expect(_teamGroupIdCacheForTest.size).toBe(500);
-    expect(_teamGroupIdCacheForTest.has("team-0")).toBe(true);
-    expect(_teamGroupIdCacheForTest.has("team-499")).toBe(true);
-
-    vi.mocked(fetchGraphJson).mockClear();
-    await resolveTeamGroupId(token, "team-500");
-    expect(fetchGraphJson).toHaveBeenCalledTimes(1);
-    expect(_teamGroupIdCacheForTest.size).toBe(500);
-    expect(_teamGroupIdCacheForTest.has("team-0")).toBe(false);
-    expect(_teamGroupIdCacheForTest.has("team-500")).toBe(true);
-
-    vi.mocked(fetchGraphJson).mockClear();
-    await resolveTeamGroupId(token, "team-0");
-    expect(fetchGraphJson).toHaveBeenCalledTimes(1);
-    expect(_teamGroupIdCacheForTest.size).toBe(500);
-    expect(_teamGroupIdCacheForTest.has("team-1")).toBe(false);
-    expect(_teamGroupIdCacheForTest.has("team-500")).toBe(true);
-
-    // team-500 remains cached after team-0 is reinserted at the insertion-order tail.
-    vi.mocked(fetchGraphJson).mockClear();
-    await resolveTeamGroupId(token, "team-500");
-    expect(fetchGraphJson).toHaveBeenCalledTimes(0);
-  });
-});
-
 describe("fetchChannelMessage", () => {
  beforeEach(() => {
    vi.mocked(fetchGraphJson).mockReset();
@@ -238,6 +142,23 @@ describe("fetchChatMessageText", () => {
    const result = await fetchChatMessageText("tok", "19:chat", "m-1");
    expect(result).toBeUndefined();
  });
+
+  it("forwards a shared deadline to the Graph request", async () => {
+    vi.mocked(fetchGraphJson).mockResolvedValueOnce({} as never);
+    const deadline = {
+      label: "MS Teams inbound preprocessing",
+      timeoutMs: 10_000,
+      deadlineAtMs: Date.now() + 10_000,
+    };
+
+    await fetchChatMessageText("tok", "19:chat", "m-1", deadline);
+
+    expect(fetchGraphJson).toHaveBeenCalledWith({
+      token: "tok",
+      path: "/chats/19%3Achat/messages/m-1",
+      deadline,
+    });
+  });
 });

 describe("fetchThreadReplies", () => {
--- a/extensions/msteams/src/graph-thread.ts
+++ b/extensions/msteams/src/graph-thread.ts
@@ -1,10 +1,6 @@
 // Msteams plugin module implements graph thread behavior.
-import { pruneMapToMaxSize } from "openclaw/plugin-sdk/collection-runtime";
-import {
-  asDateTimestampMs,
-  resolveExpiresAtMsFromDurationMs,
-} from "openclaw/plugin-sdk/number-runtime";
 import { fetchGraphJson, type GraphResponse } from "./graph.js";
+import type { MSTeamsRequestDeadline } from "./request-timeout.js";

 export type GraphThreadMessage = {
  id?: string;
@@ -16,19 +12,6 @@ export type GraphThreadMessage = {
  createdDateTime?: string;
 };

-// Successful lookups use a 10-minute TTL and a 500-entry insertion-order cap.
-// Pruning after insert evicts the oldest team IDs before this process cache grows unbounded.
-const teamGroupIdCache = new Map<string, { groupId: string; expiresAt: number }>();
-const CACHE_TTL_MS = 10 * 60 * 1000; // 10 minutes
-const TEAM_GROUP_ID_CACHE_MAX_ENTRIES = 500;
-
-function resolveTeamGroupIdCacheExpiresAt(nowRaw = Date.now()): number | undefined {
-  const now = asDateTimestampMs(nowRaw);
-  return now === undefined
-    ? undefined
-    : resolveExpiresAtMsFromDurationMs(CACHE_TTL_MS, { nowMs: now });
-}
-
 /**
 * Strip HTML tags from Teams message content, preserving @mention display names.
 * Teams wraps mentions in <at>Name</at> tags.
@@ -52,52 +35,6 @@ export function stripHtmlFromTeamsMessage(html: string): string {
  return text.replace(/\s+/g, " ").trim();
 }

-/**
- * Resolve the Azure AD group GUID for a Teams conversation team ID.
- * Results are cached with a TTL to avoid repeated Graph API calls.
- */
-export async function resolveTeamGroupId(
-  token: string,
-  conversationTeamId: string,
-): Promise<string> {
-  const cached = teamGroupIdCache.get(conversationTeamId);
-  if (cached) {
-    const now = asDateTimestampMs(Date.now());
-    const expiresAt = asDateTimestampMs(cached.expiresAt);
-    if (now !== undefined && expiresAt !== undefined && expiresAt > now) {
-      return cached.groupId;
-    }
-    teamGroupIdCache.delete(conversationTeamId);
-  }
-
-  // The team ID in channelData is typically the group ID itself for standard teams.
-  // Validate by fetching /teams/{id} and returning the confirmed id.
-  // Requires Team.ReadBasic.All permission; fall back to raw ID if missing.
-  try {
-    const path = `/teams/${encodeURIComponent(conversationTeamId)}?$select=id`;
-    const team = await fetchGraphJson<{ id?: string }>({ token, path });
-    const groupId = team.id ?? conversationTeamId;
-
-    // Only cache when the Graph lookup succeeds — caching a fallback raw ID
-    // can cause silent failures for the entire TTL if the ID is not a valid
-    // Graph team GUID (e.g. Bot Framework conversation key).
-    const expiresAt = resolveTeamGroupIdCacheExpiresAt();
-    if (expiresAt !== undefined) {
-      teamGroupIdCache.set(conversationTeamId, {
-        groupId,
-        expiresAt,
-      });
-      pruneMapToMaxSize(teamGroupIdCache, TEAM_GROUP_ID_CACHE_MAX_ENTRIES);
-    }
-
-    return groupId;
-  } catch {
-    // Fallback to raw team ID without caching so subsequent calls retry the
-    // Graph lookup instead of using a potentially invalid cached value.
-    return conversationTeamId;
-  }
-}
-
 /**
 * Fetch a single channel message (the parent/root of a thread).
 * Returns undefined on error so callers can degrade gracefully.
@@ -107,10 +44,15 @@ export async function fetchChannelMessage(
  groupId: string,
  channelId: string,
  messageId: string,
+  deadline?: MSTeamsRequestDeadline,
 ): Promise<GraphThreadMessage | undefined> {
  const path = `/teams/${encodeURIComponent(groupId)}/channels/${encodeURIComponent(channelId)}/messages/${encodeURIComponent(messageId)}?$select=id,from,body,createdDateTime`;
  try {
-    return await fetchGraphJson<GraphThreadMessage>({ token, path });
+    return await fetchGraphJson<GraphThreadMessage>({
+      token,
+      path,
+      ...(deadline ? { deadline } : {}),
+    });
  } catch {
    return undefined;
  }
@@ -122,8 +64,7 @@ export async function fetchChannelMessage(
 * Used to recover the complete quoted message for Teams quote replies: the
 * inbound blockquote only carries a Teams-truncated `preview` snippet. The
 * app-only `GET /chats/{chatId}/messages/{messageId}` endpoint IS permitted
- * with the `Chat.Read.All` application permission (unlike the delegated
- * `/me/chats` listing used by `resolveGraphChatId`, which 400s app-only).
+ * with the `Chat.Read.All` application permission.
 *
 * Returns undefined on any failure so callers degrade to the truncated preview.
 */
@@ -131,13 +72,18 @@ export async function fetchChatMessageText(
  token: string,
  chatId: string,
  messageId: string,
+  deadline?: MSTeamsRequestDeadline,
 ): Promise<string | undefined> {
  // The get-chatMessage endpoint does not support OData query params (e.g.
  // `$select`); tenants that enforce the documented contract reject the request,
  // which would silently fall back to the truncated preview. Request it plainly.
  const path = `/chats/${encodeURIComponent(chatId)}/messages/${encodeURIComponent(messageId)}`;
  try {
-    const msg = await fetchGraphJson<GraphThreadMessage>({ token, path });
+    const msg = await fetchGraphJson<GraphThreadMessage>({
+      token,
+      path,
+      ...(deadline ? { deadline } : {}),
+    });
    const raw = msg.body?.content ?? "";
    const text = msg.body?.contentType === "html" ? stripHtmlFromTeamsMessage(raw) : raw.trim();
    return text || undefined;
@@ -162,13 +108,18 @@ export async function fetchThreadReplies(
  channelId: string,
  messageId: string,
  limit = 50,
+  deadline?: MSTeamsRequestDeadline,
 ): Promise<GraphThreadMessage[]> {
  const top = Math.min(Math.max(limit, 1), 50);
  // NOTE: Graph replies endpoint returns oldest-first and does not support $orderby.
  // For threads with >50 replies, only the oldest 50 are returned. The most recent
  // replies (often the most relevant context) may be truncated.
  const path = `/teams/${encodeURIComponent(groupId)}/channels/${encodeURIComponent(channelId)}/messages/${encodeURIComponent(messageId)}/replies?$top=${top}&$select=id,from,body,createdDateTime`;
-  const res = await fetchGraphJson<GraphResponse<GraphThreadMessage>>({ token, path });
+  const res = await fetchGraphJson<GraphResponse<GraphThreadMessage>>({
+    token,
+    path,
+    ...(deadline ? { deadline } : {}),
+  });
  return res.value ?? [];
 }

@@ -197,6 +148,3 @@ export function formatThreadContext(
  }
  return lines.join("\n");
 }
-
-// Exported for testing only.
-export { teamGroupIdCache as _teamGroupIdCacheForTest };
--- a/extensions/msteams/src/graph-upload.test.ts
+++ b/extensions/msteams/src/graph-upload.test.ts
@@ -2,7 +2,7 @@
 import { withFetchPreconnect, withServer } from "openclaw/plugin-sdk/test-env";
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { buildTeamsFileInfoCard } from "./graph-chat.js";
-import { resolveGraphChatId, uploadToOneDrive, uploadToSharePoint } from "./graph-upload.js";
+import { requireMSTeamsSharePointSiteId, uploadToSharePoint } from "./graph-upload.js";

 type FetchCall = [string, { method?: string; headers?: Record<string, string> } | undefined];

@@ -37,34 +37,11 @@ describe("graph upload helpers", () => {
    getAccessToken: vi.fn(async () => "graph-token"),
  };

-  it("uploads to OneDrive with the personal drive path", async () => {
-    const fetchFn = vi.fn(
-      async () =>
-        new Response(
-          JSON.stringify({ id: "item-1", webUrl: "https://example.com/1", name: "a.txt" }),
-          {
-            status: 200,
-            headers: { "content-type": "application/json" },
-          },
-        ),
+  it("requires a non-empty SharePoint site ID", () => {
+    expect(() => requireMSTeamsSharePointSiteId()).toThrow(
+      "channels.msteams.sharePointSiteId is required",
    );
-
-    const result = await uploadToOneDrive({
-      buffer: Buffer.from("hello"),
-      filename: "a.txt",
-      tokenProvider,
-      fetchFn: withFetchPreconnect(fetchFn),
-    });
-
-    expectGraphUploadFetch(
-      fetchFn,
-      "https://graph.microsoft.com/v1.0/me/drive/root:/OpenClawShared/a.txt:/content",
-    );
-    expect(result).toEqual({
-      id: "item-1",
-      webUrl: "https://example.com/1",
-      name: "a.txt",
-    });
+    expect(requireMSTeamsSharePointSiteId(" site-123 ")).toBe("site-123");
  });

  it("uploads to SharePoint with the site drive path", async () => {
@@ -144,111 +121,6 @@ describe("graph upload helpers", () => {
  });
 });

-describe("resolveGraphChatId", () => {
-  const tokenProvider = {
-    getAccessToken: vi.fn(async () => "graph-token"),
-  };
-
-  it("returns the ID directly when it already starts with 19:", async () => {
-    const fetchFn = vi.fn();
-    const result = await resolveGraphChatId({
-      botFrameworkConversationId: "19:abc123@thread.tacv2",
-      tokenProvider,
-      fetchFn: withFetchPreconnect(fetchFn),
-    });
-    // Should short-circuit without making any API call
-    expect(fetchFn).not.toHaveBeenCalled();
-    expect(result).toBe("19:abc123@thread.tacv2");
-  });
-
-  it("resolves personal DM chat ID via Graph API using user AAD object ID", async () => {
-    const fetchFn = vi.fn(
-      async () =>
-        new Response(JSON.stringify({ value: [{ id: "19:dm-chat-id@unq.gbl.spaces" }] }), {
-          status: 200,
-          headers: { "content-type": "application/json" },
-        }),
-    );
-
-    const result = await resolveGraphChatId({
-      botFrameworkConversationId: "a:1abc_bot_framework_dm_id",
-      userAadObjectId: "user-aad-object-id-123",
-      tokenProvider,
-      fetchFn: withFetchPreconnect(fetchFn),
-    });
-
-    expect(fetchFn).toHaveBeenCalledTimes(1);
-    const [callUrlRaw, init] = requireFetchCall(fetchFn);
-    expect(init?.headers?.Authorization).toBe("Bearer graph-token");
-    expect(init?.headers?.["User-Agent"]).toMatch(/^teams\.ts\[apps\]\/.+ OpenClaw\/.+$/);
-    const callUrl = new URL(callUrlRaw);
-    expect(callUrl.origin).toBe("https://graph.microsoft.com");
-    expect(callUrl.pathname).toBe("/v1.0/me/chats");
-    expect(callUrl.searchParams.get("$filter")).toBe(
-      "chatType eq 'oneOnOne' and members/any(m:m/microsoft.graph.aadUserConversationMember/userId eq 'user-aad-object-id-123')",
-    );
-    expect(callUrl.searchParams.get("$select")).toBe("id");
-    expect(result).toBe("19:dm-chat-id@unq.gbl.spaces");
-  });
-
-  it("resolves personal DM chat ID without user AAD object ID (lists all 1:1 chats)", async () => {
-    const fetchFn = vi.fn(
-      async () =>
-        new Response(JSON.stringify({ value: [{ id: "19:fallback-chat@unq.gbl.spaces" }] }), {
-          status: 200,
-          headers: { "content-type": "application/json" },
-        }),
-    );
-
-    const result = await resolveGraphChatId({
-      botFrameworkConversationId: "8:orgid:user-object-id",
-      tokenProvider,
-      fetchFn: withFetchPreconnect(fetchFn),
-    });
-
-    expect(fetchFn).toHaveBeenCalledOnce();
-    expect(result).toBe("19:fallback-chat@unq.gbl.spaces");
-  });
-
-  it("returns null when Graph API returns no chats", async () => {
-    const fetchFn = vi.fn(
-      async () =>
-        new Response(JSON.stringify({ value: [] }), {
-          status: 200,
-          headers: { "content-type": "application/json" },
-        }),
-    );
-
-    const result = await resolveGraphChatId({
-      botFrameworkConversationId: "a:1unknown_dm",
-      userAadObjectId: "some-user",
-      tokenProvider,
-      fetchFn: withFetchPreconnect(fetchFn),
-    });
-
-    expect(result).toBeNull();
-  });
-
-  it("returns null when Graph API call fails", async () => {
-    const fetchFn = vi.fn(
-      async () =>
-        new Response("Unauthorized", {
-          status: 401,
-          headers: { "content-type": "text/plain" },
-        }),
-    );
-
-    const result = await resolveGraphChatId({
-      botFrameworkConversationId: "a:1some_dm_id",
-      userAadObjectId: "some-user",
-      tokenProvider,
-      fetchFn: withFetchPreconnect(fetchFn),
-    });
-
-    expect(result).toBeNull();
-  });
-});
-
 describe("graph upload response limits", () => {
  const tokenProvider = {
    getAccessToken: vi.fn(async () => "graph-token"),
@@ -294,9 +166,14 @@ describe("graph upload response limits", () => {
        );

        await expect(
-          uploadToOneDrive({ buffer: Buffer.from("x"), filename: "big.txt", tokenProvider }),
+          uploadToSharePoint({
+            buffer: Buffer.from("x"),
+            filename: "big.txt",
+            siteId: "site-123",
+            tokenProvider,
+          }),
        ).rejects.toThrow(
-          "msteams.graph-upload.uploadOneDriveFile: JSON response exceeds 16777216 bytes",
+          "msteams.graph-upload.uploadSharePointFile: JSON response exceeds 16777216 bytes",
        );
      },
    );
--- a/extensions/msteams/src/graph-upload.ts
+++ b/extensions/msteams/src/graph-upload.ts
@@ -1,9 +1,8 @@
 /**
- * OneDrive/SharePoint upload utilities for MS Teams file sending.
+ * SharePoint upload utilities for MS Teams file sending.
 *
 * For group chats and channels, files are uploaded to SharePoint and shared via a link.
 * This module provides utilities for:
- * - Uploading files to OneDrive (personal scope - now deprecated for bot use)
 * - Uploading files to SharePoint (group/channel scope)
 * - Creating sharing links (organization-wide or per-user)
 * - Getting chat members for per-user sharing
@@ -18,148 +17,26 @@ const GRAPH_ROOT = "https://graph.microsoft.com/v1.0";
 const GRAPH_BETA = "https://graph.microsoft.com/beta";
 const GRAPH_SCOPE = "https://graph.microsoft.com";

-interface OneDriveUploadResult {
+export function requireMSTeamsSharePointSiteId(siteId?: string): string {
+  const normalized = siteId?.trim();
+  if (!normalized) {
+    throw new Error(
+      "channels.msteams.sharePointSiteId is required to send files to group chats or channels",
+    );
+  }
+  return normalized;
+}
+
+interface DriveUploadResult {
  id: string;
  webUrl: string;
  name: string;
 }

-/**
- * Upload a file to the user's OneDrive root folder.
- * For larger files, this uses the simple upload endpoint (up to 4MB).
- */
-export async function uploadToOneDrive(params: {
-  buffer: Buffer;
-  filename: string;
-  contentType?: string;
-  tokenProvider: MSTeamsAccessTokenProvider;
-  fetchFn?: typeof fetch;
-}): Promise<OneDriveUploadResult> {
-  const fetchFn = params.fetchFn ?? fetch;
-  const token = await params.tokenProvider.getAccessToken(GRAPH_SCOPE);
-
-  // Use "OpenClawShared" folder to organize bot-uploaded files
-  const uploadPath = `/OpenClawShared/${encodeURIComponent(params.filename)}`;
-
-  const res = await fetchFn(`${GRAPH_ROOT}/me/drive/root:${uploadPath}:/content`, {
-    method: "PUT",
-    headers: {
-      "User-Agent": buildUserAgent(),
-      Authorization: `Bearer ${token}`,
-      "Content-Type": params.contentType ?? "application/octet-stream",
-    },
-    body: new Uint8Array(params.buffer),
-  });
-
-  if (!res.ok) {
-    throw await createMSTeamsHttpError(res, "OneDrive upload failed");
-  }
-
-  const data = await readProviderJsonResponse<{
-    id?: string;
-    webUrl?: string;
-    name?: string;
-  }>(res, "msteams.graph-upload.uploadOneDriveFile");
-
-  if (!data.id || !data.webUrl || !data.name) {
-    throw new Error("OneDrive upload response missing required fields");
-  }
-
-  return {
-    id: data.id,
-    webUrl: data.webUrl,
-    name: data.name,
-  };
-}
-
-interface OneDriveSharingLink {
+interface SharingLinkResult {
  webUrl: string;
 }

-/**
- * Create a sharing link for a OneDrive file.
- * The link allows organization members to view the file.
- */
-async function createSharingLink(params: {
-  itemId: string;
-  tokenProvider: MSTeamsAccessTokenProvider;
-  /** Sharing scope: "organization" (default) or "anonymous" */
-  scope?: "organization" | "anonymous";
-  fetchFn?: typeof fetch;
-}): Promise<OneDriveSharingLink> {
-  const fetchFn = params.fetchFn ?? fetch;
-  const token = await params.tokenProvider.getAccessToken(GRAPH_SCOPE);
-
-  const res = await fetchFn(`${GRAPH_ROOT}/me/drive/items/${params.itemId}/createLink`, {
-    method: "POST",
-    headers: {
-      "User-Agent": buildUserAgent(),
-      Authorization: `Bearer ${token}`,
-      "Content-Type": "application/json",
-    },
-    body: JSON.stringify({
-      type: "view",
-      scope: params.scope ?? "organization",
-    }),
-  });
-
-  if (!res.ok) {
-    throw await createMSTeamsHttpError(res, "Create sharing link failed");
-  }
-
-  const data = await readProviderJsonResponse<{
-    link?: { webUrl?: string };
-  }>(res, "msteams.graph-upload.createOneDriveSharingLink");
-
-  if (!data.link?.webUrl) {
-    throw new Error("Create sharing link response missing webUrl");
-  }
-
-  return {
-    webUrl: data.link.webUrl,
-  };
-}
-
-/**
- * Upload a file to OneDrive and create a sharing link.
- * Convenience function for the common case.
- */
-export async function uploadAndShareOneDrive(params: {
-  buffer: Buffer;
-  filename: string;
-  contentType?: string;
-  tokenProvider: MSTeamsAccessTokenProvider;
-  scope?: "organization" | "anonymous";
-  fetchFn?: typeof fetch;
-}): Promise<{
-  itemId: string;
-  webUrl: string;
-  shareUrl: string;
-  name: string;
-}> {
-  const uploaded = await uploadToOneDrive({
-    buffer: params.buffer,
-    filename: params.filename,
-    contentType: params.contentType,
-    tokenProvider: params.tokenProvider,
-    fetchFn: params.fetchFn,
-  });
-
-  const shareLink = await createSharingLink({
-    itemId: uploaded.id,
-    tokenProvider: params.tokenProvider,
-    scope: params.scope,
-    fetchFn: params.fetchFn,
-  });
-
-  return {
-    itemId: uploaded.id,
-    webUrl: uploaded.webUrl,
-    shareUrl: shareLink.webUrl,
-    name: uploaded.name,
-  };
-}
-
 // ============================================================================
 // SharePoint upload functions for group chats and channels
 // ============================================================================
@@ -177,7 +54,7 @@ export async function uploadToSharePoint(params: {
  tokenProvider: MSTeamsAccessTokenProvider;
  siteId: string;
  fetchFn?: typeof fetch;
-}): Promise<OneDriveUploadResult> {
+}): Promise<DriveUploadResult> {
  const fetchFn = params.fetchFn ?? fetch;
  const token = await params.tokenProvider.getAccessToken(GRAPH_SCOPE);

@@ -220,7 +97,6 @@ export async function uploadToSharePoint(params: {

 interface ChatMember {
  aadObjectId: string;
-  displayName?: string;
 }

 /**
@@ -278,80 +154,6 @@ export async function getDriveItemProperties(params: {
  };
 }

-/**
- * Resolve the Graph API-native chat ID from a Bot Framework conversation ID.
- *
- * Bot Framework personal DM conversation IDs use formats like `a:1xxx@unq.gbl.spaces`
- * or `8:orgid:xxx` that the Graph API does not accept. Graph API requires the
- * `19:xxx@thread.tacv2` or `19:xxx@unq.gbl.spaces` format.
- *
- * This function looks up the matching Graph chat by querying the bot's chats filtered
- * by the target user's AAD object ID.
- */
-export async function resolveGraphChatId(params: {
-  /** Bot Framework conversation ID (may be in non-Graph format for personal DMs) */
-  botFrameworkConversationId: string;
-  /** AAD object ID of the user in the conversation (used for filtering chats) */
-  userAadObjectId?: string;
-  tokenProvider: MSTeamsAccessTokenProvider;
-  fetchFn?: typeof fetch;
-}): Promise<string | null> {
-  const { botFrameworkConversationId, userAadObjectId, tokenProvider } = params;
-  const fetchFn = params.fetchFn ?? fetch;
-
-  // If the conversation ID already looks like a valid Graph chat ID, return it directly.
-  // Graph chat IDs start with "19:" — Bot Framework group chat IDs already use this format.
-  if (botFrameworkConversationId.startsWith("19:")) {
-    return botFrameworkConversationId;
-  }
-
-  // For personal DMs with non-Graph conversation IDs (e.g. `a:1xxx` or `8:orgid:xxx`),
-  // query the bot's chats to find the matching one.
-  const token = await tokenProvider.getAccessToken(GRAPH_SCOPE);
-
-  // Build filter: if we have the user's AAD object ID, narrow the search to 1:1 chats
-  // with that member. Otherwise, fall back to listing all 1:1 chats.
-  let path: string;
-  if (userAadObjectId) {
-    const encoded = encodeURIComponent(
-      `chatType eq 'oneOnOne' and members/any(m:m/microsoft.graph.aadUserConversationMember/userId eq '${userAadObjectId}')`,
-    );
-    path = `/me/chats?$filter=${encoded}&$select=id`;
-  } else {
-    // Fallback: list all 1:1 chats when no user ID is available.
-    // Only safe when the bot has exactly one 1:1 chat; returns null otherwise to
-    // avoid sending to the wrong person's chat.
-    path = `/me/chats?$filter=${encodeURIComponent("chatType eq 'oneOnOne'")}&$select=id`;
-  }
-
-  const res = await fetchFn(`${GRAPH_ROOT}${path}`, {
-    headers: { "User-Agent": buildUserAgent(), Authorization: `Bearer ${token}` },
-  });
-
-  if (!res.ok) {
-    return null;
-  }
-
-  const data = await readProviderJsonResponse<{
-    value?: Array<{ id?: string }>;
-  }>(res, "msteams.graph-upload.getOneOnOneChatId");
-
-  const chats = data.value ?? [];
-
-  // When filtered by userAadObjectId, any non-empty result is the right 1:1 chat.
-  if (userAadObjectId && chats.length > 0 && chats[0]?.id) {
-    return chats[0].id;
-  }
-
-  // Without a user ID we can only be certain when exactly one chat is returned;
-  // multiple results would be ambiguous and could route to the wrong person.
-  if (!userAadObjectId && chats.length === 1 && chats[0]?.id) {
-    return chats[0].id;
-  }
-
-  return null;
-}
-
 /**
 * Get members of a Teams chat for per-user sharing.
 * Used to create sharing links scoped to only the chat participants.
@@ -373,17 +175,11 @@ async function getChatMembers(params: {
  }

  const data = await readProviderJsonResponse<{
-    value?: Array<{
-      userId?: string;
-      displayName?: string;
-    }>;
+    value?: Array<{ userId?: string }>;
  }>(res, "msteams.graph-upload.getChatMembers");

  return (data.value ?? [])
-    .map((m) => ({
-      aadObjectId: m.userId ?? "",
-      displayName: m.displayName,
-    }))
+    .map((m) => ({ aadObjectId: m.userId ?? "" }))
    .filter((m) => m.aadObjectId);
 }

@@ -401,7 +197,7 @@ async function createSharePointSharingLink(params: {
  /** Required when scope is "users": AAD object IDs of recipients */
  recipientObjectIds?: string[];
  fetchFn?: typeof fetch;
-}): Promise<OneDriveSharingLink> {
+}): Promise<SharingLinkResult> {
  const fetchFn = params.fetchFn ?? fetch;
  const token = await params.tokenProvider.getAccessToken(GRAPH_SCOPE);
  const scope = params.scope ?? "organization";
--- a/extensions/msteams/src/graph.test.ts
+++ b/extensions/msteams/src/graph.test.ts
@@ -279,6 +279,25 @@ describe("msteams graph helpers", () => {
    expect(arrayBuffer).not.toHaveBeenCalled();
  });

+  it("passes the remaining operation deadline to the guarded Graph transport", async () => {
+    mockGraphCollection(groupOne);
+    const remainingMs = 5_000;
+
+    await fetchGraphJson({
+      token: graphToken,
+      path: "/groups?$select=id",
+      deadline: {
+        label: "MS Teams inbound preprocessing",
+        timeoutMs: remainingMs,
+        deadlineAtMs: Date.now() + remainingMs,
+      },
+    });
+
+    const timeoutMs = fetchWithSsrFGuardMock.mock.calls[0]?.[0]?.timeoutMs;
+    expect(timeoutMs).toBeGreaterThan(0);
+    expect(timeoutMs).toBeLessThanOrEqual(remainingMs);
+  });
+
  it("bounds absolute Graph pagination requests", async () => {
    mockGraphCollection(groupOne);

--- a/extensions/msteams/src/graph.ts
+++ b/extensions/msteams/src/graph.ts
@@ -4,6 +4,11 @@ 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 {
+  MSTEAMS_REQUEST_TIMEOUT_MS,
+  resolveMSTeamsRequestTimeoutMs,
+  type MSTeamsRequestDeadline,
+} from "./request-timeout.js";
 import { responseWithRelease } from "./response-with-release.js";
 import { createMSTeamsTokenProvider, loadMSTeamsSdkWithAuth } from "./sdk.js";
 import { readAccessToken } from "./token-response.js";
@@ -11,7 +16,6 @@ import { resolveDelegatedAccessToken, resolveMSTeamsCredentials } from "./token.
 import { buildUserAgent } from "./user-agent.js";

 const GRAPH_BETA = "https://graph.microsoft.com/beta";
-const GRAPH_REQUEST_TIMEOUT_MS = 30_000;

 export type GraphUser = {
  id?: string;
@@ -48,6 +52,7 @@ async function requestGraph(params: {
  headers?: Record<string, string>;
  body?: unknown;
  errorPrefix?: string;
+  deadline?: MSTeamsRequestDeadline;
 }): Promise<Response> {
  const hasBody = params.body !== undefined;
  const url = `${params.root ?? GRAPH_ROOT}${params.path}`;
@@ -66,7 +71,7 @@ async function requestGraph(params: {
      body: hasBody ? JSON.stringify(params.body) : undefined,
    },
    auditContext: "msteams.graph",
-    timeoutMs: GRAPH_REQUEST_TIMEOUT_MS,
+    timeoutMs: resolveMSTeamsRequestTimeoutMs(params.deadline),
  });
  let releaseInFinally = true;
  try {
@@ -102,6 +107,8 @@ export async function fetchGraphJson<T>(params: {
  method?: string;
  /** Request body (serialized as JSON). Only used for non-GET methods. */
  body?: unknown;
+  /** Optional shared operation deadline; actively aborts the guarded fetch when spent. */
+  deadline?: MSTeamsRequestDeadline;
 }): Promise<T> {
  const res = await requestGraph({
    token: params.token,
@@ -109,6 +116,7 @@ export async function fetchGraphJson<T>(params: {
    method: params.method as "GET" | "POST" | "DELETE" | undefined,
    body: params.body,
    headers: params.headers,
+    deadline: params.deadline,
  });
  return await readOptionalGraphJson<T>(res, `Graph ${params.path} failed`);
 }
@@ -132,7 +140,7 @@ export async function fetchGraphAbsoluteUrl<T>(params: {
      },
    },
    auditContext: "msteams.graph.absolute",
-    timeoutMs: GRAPH_REQUEST_TIMEOUT_MS,
+    timeoutMs: MSTEAMS_REQUEST_TIMEOUT_MS,
  });
  try {
    if (!response.ok) {
--- a/extensions/msteams/src/inbound.ts
+++ b/extensions/msteams/src/inbound.ts
@@ -131,30 +131,6 @@ export function stripMSTeamsMentionTags(text: string): string {
  return text.replace(/<at[^>]*>.*?<\/at>/gi, "").trim();
 }

-/**
- * Bot Framework uses 'a:xxx' conversation IDs for personal chats, but Graph API
- * requires the '19:{userId}_{botAppId}@unq.gbl.spaces' format.
- *
- * This is the documented Graph API format for 1:1 chat thread IDs between a user
- * and a bot/app. See Microsoft docs "Get chat between user and app":
- * https://learn.microsoft.com/en-us/graph/api/userscopeteamsappinstallation-get-chat
- *
- * The format is only synthesized when the Bot Framework conversation ID starts with
- * 'a:' (the opaque format used by BF but not recognized by Graph). If the ID already
- * has the '19:...' Graph format, it is passed through unchanged.
- */
-export function translateMSTeamsDmConversationIdForGraph(params: {
-  isDirectMessage: boolean;
-  conversationId: string;
-  aadObjectId?: string | null;
-  appId?: string | null;
-}): string {
-  const { isDirectMessage, conversationId, aadObjectId, appId } = params;
-  return isDirectMessage && conversationId.startsWith("a:") && aadObjectId && appId
-    ? `19:${aadObjectId}_${appId}@unq.gbl.spaces`
-    : conversationId;
-}
-
 export function wasMSTeamsBotMentioned(activity: MentionableActivity): boolean {
  const botId = activity.recipient?.id;
  if (!botId) {
--- a/extensions/msteams/src/messenger.test.ts
+++ b/extensions/msteams/src/messenger.test.ts
@@ -7,14 +7,14 @@ import { resolvePreferredOpenClawTmpDir } from "openclaw/plugin-sdk/temp-path";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import type { StoredConversationReference } from "./conversation-store.js";
 const graphUploadMockState = vi.hoisted(() => ({
-  uploadAndShareOneDrive: vi.fn(),
  uploadAndShareSharePoint: vi.fn(),
  getDriveItemProperties: vi.fn(),
 }));

-vi.mock("./graph-upload.js", () => {
+vi.mock("./graph-upload.js", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("./graph-upload.js")>();
  return {
-    uploadAndShareOneDrive: graphUploadMockState.uploadAndShareOneDrive,
+    ...actual,
    uploadAndShareSharePoint: graphUploadMockState.uploadAndShareSharePoint,
    getDriveItemProperties: graphUploadMockState.getDriveItemProperties,
  };
@@ -76,14 +76,6 @@ const createRecordedSendActivity = (

 const REVOCATION_ERROR = "Cannot perform 'set' on a proxy that has been revoked";

-function requireSentMessage(sent: Array<{ text?: string; entities?: unknown[] }>) {
-  const firstSent = sent[0];
-  if (!firstSent?.text) {
-    throw new Error("expected Teams message send to include rendered text");
-  }
-  return firstSent;
-}
-
 function findEntity(
  entities: unknown,
  predicate: (entity: Record<string, unknown>) => boolean,
@@ -104,14 +96,6 @@ function requireAiGeneratedEntity(entities: unknown): Record<string, unknown> {
  return entity;
 }

-function requireMentionEntity(entities: unknown): Record<string, unknown> {
-  const entity = findEntity(entities, (candidate) => candidate.type === "mention");
-  if (!entity) {
-    throw new Error("expected Teams mention entity");
-  }
-  return entity;
-}
-
 type MockAppOptions = {
  createFn?: (activity: unknown) => Promise<unknown>;
  onClientCreated?: (serviceUrl: string, conversationId: string) => void;
@@ -180,15 +164,8 @@ function createMockApp(opts?: MockAppOptions): MSTeamsApp {
 describe("msteams messenger", () => {
  beforeEach(() => {
    setMSTeamsRuntime(runtimeStub);
-    graphUploadMockState.uploadAndShareOneDrive.mockReset();
    graphUploadMockState.uploadAndShareSharePoint.mockReset();
    graphUploadMockState.getDriveItemProperties.mockReset();
-    graphUploadMockState.uploadAndShareOneDrive.mockResolvedValue({
-      itemId: "item123",
-      webUrl: "https://onedrive.example.com/item123",
-      shareUrl: "https://onedrive.example.com/share/item123",
-      name: "upload.txt",
-    });
  });

  describe("renderReplyPayloadsToMessages", () => {
@@ -345,55 +322,28 @@ describe("msteams messenger", () => {
      expect(capturedConversationId).toBe("19:abc@thread.tacv2");
    });

-    it("preserves parsed mentions when appending OneDrive fallback file links", async () => {
-      const tmpDir = await mkdtemp(path.join(resolvePreferredOpenClawTmpDir(), "msteams-mention-"));
+    it("requires SharePoint storage for channel files", async () => {
+      const tmpDir = await mkdtemp(path.join(resolvePreferredOpenClawTmpDir(), "msteams-storage-"));
      const localFile = path.join(tmpDir, "note.txt");
      await writeFile(localFile, "hello");

      try {
-        const sent: Array<{ text?: string; entities?: unknown[] }> = [];
-        const ctx = {
-          sendActivity: async (activity: unknown) => {
-            sent.push(activity as { text?: string; entities?: unknown[] });
-            return { id: "id:one" };
-          },
-        };
-
-        const ids = await sendMSTeamsMessages({
-          replyStyle: "thread",
-          app: createMockApp(),
-          appId: "app123",
-          conversationRef: {
-            ...baseRef,
-            conversation: {
-              ...baseRef.conversation,
-              conversationType: "channel",
+        await expect(
+          sendMSTeamsMessages({
+            replyStyle: "thread",
+            app: createMockApp(),
+            appId: "app123",
+            conversationRef: {
+              ...baseRef,
+              conversation: {
+                ...baseRef.conversation,
+                conversationType: "channel",
+              },
            },
-          },
-          context: ctx,
-          messages: [{ text: "Hello @[John](29:08q2j2o3jc09au90eucae)", mediaUrl: localFile }],
-          tokenProvider: {
-            getAccessToken: async () => "token",
-          },
-        });
-
-        expect(ids).toEqual(["id:one"]);
-        expect(graphUploadMockState.uploadAndShareOneDrive).toHaveBeenCalledOnce();
-        expect(sent).toHaveLength(1);
-        const firstSent = requireSentMessage(sent);
-        expect(firstSent.text).toContain("Hello <at>John</at>");
-        expect(firstSent.text).toContain(
-          "📎 [upload.txt](https://onedrive.example.com/share/item123)",
-        );
-        const mentionEntity = requireMentionEntity(sent[0]?.entities);
-        expect(mentionEntity.text).toBe("<at>John</at>");
-        expect(mentionEntity.mentioned).toEqual({
-          id: "29:08q2j2o3jc09au90eucae",
-          name: "John",
-        });
-        expect(requireAiGeneratedEntity(sent[0]?.entities).additionalType).toEqual([
-          "AIGeneratedContent",
-        ]);
+            messages: [{ text: "one", mediaUrl: localFile }],
+            tokenProvider: { getAccessToken: async () => "token" },
+          }),
+        ).rejects.toThrow("channels.msteams.sharePointSiteId is required");
      } finally {
        await rm(tmpDir, { recursive: true, force: true });
      }
@@ -431,18 +381,23 @@ describe("msteams messenger", () => {
        const attempts: string[] = [];
        const retryEvents: Array<{ nextAttempt: number; delayMs: number }> = [];
        let uploadAttempts = 0;
-        graphUploadMockState.uploadAndShareOneDrive.mockImplementation(async () => {
+        graphUploadMockState.uploadAndShareSharePoint.mockImplementation(async () => {
          uploadAttempts += 1;
          if (uploadAttempts === 1) {
            throw Object.assign(new Error("transient upload failure"), { statusCode: 429 });
          }
          return {
            itemId: "item123",
-            webUrl: "https://onedrive.example.com/item123",
-            shareUrl: "https://onedrive.example.com/share/item123",
+            webUrl: "https://sharepoint.example.com/item123",
+            shareUrl: "https://sharepoint.example.com/share/item123",
            name: "retry.txt",
          };
        });
+        graphUploadMockState.getDriveItemProperties.mockResolvedValue({
+          eTag: '"{ITEM-123},1"',
+          webDavUrl: "https://sharepoint.example.com/item123",
+          name: "retry.txt",
+        });

        const ctx = {
          sendActivity: createRecordedSendActivity(attempts),
@@ -463,14 +418,14 @@ describe("msteams messenger", () => {
          tokenProvider: {
            getAccessToken: async () => "token",
          },
+          sharePointSiteId: "site-123",
          retry: { maxAttempts: 2, baseDelayMs: 0, maxDelayMs: 0 },
          onRetry: (e) => retryEvents.push({ nextAttempt: e.nextAttempt, delayMs: e.delayMs }),
        });

        expect(uploadAttempts).toBe(2);
-        expect(attempts).toHaveLength(1);
-        expect(attempts[0]).toContain("📎 [retry.txt]");
-        expect(ids).toEqual([`id:${attempts[0]}`]);
+        expect(attempts).toEqual(["one"]);
+        expect(ids).toEqual(["id:one"]);
        expect(retryEvents).toEqual([{ nextAttempt: 2, delayMs: 0 }]);
      } finally {
        await rm(tmpDir, { recursive: true, force: true });
--- a/extensions/msteams/src/messenger.ts
+++ b/extensions/msteams/src/messenger.ts
@@ -19,7 +19,7 @@ import { prepareFileConsentActivity, requiresFileConsent } from "./file-consent-
 import { buildTeamsFileInfoCard } from "./graph-chat.js";
 import {
  getDriveItemProperties,
-  uploadAndShareOneDrive,
+  requireMSTeamsSharePointSiteId,
  uploadAndShareSharePoint,
 } from "./graph-upload.js";
 import { extractFilename, extractMessageId, getMimeType, isLocalPath } from "./media-helpers.js";
@@ -30,7 +30,7 @@ import { getMSTeamsRuntime } from "./runtime.js";

 /**
 * MSTeams-specific media size limit (100MB).
- * Higher than the default because OneDrive upload handles large files well.
+ * Higher than the default to support Teams file-consent and SharePoint uploads.
 */
 const MSTEAMS_MAX_MEDIA_BYTES = 100 * 1024 * 1024;

@@ -342,27 +342,27 @@ export async function buildActivity(
        return consentActivity;
      }

-      if (!isPersonal && !isImage && tokenProvider && sharePointSiteId) {
-        // Non-image in group chat/channel with SharePoint site configured:
-        // Upload to SharePoint and use native file card attachment.
-        // Use the cached Graph-native chat ID when available — Bot Framework conversation IDs
-        // for personal DMs use a format (e.g. `a:1xxx`) that Graph API rejects.
-        const chatId = conversationRef.graphChatId ?? conversationRef.conversation?.id;
+      if (!isPersonal && !isImage) {
+        // Non-images in group chats/channels require SharePoint because an
+        // application token has no signed-in `/me/drive` to fall back to.
+        const siteId = requireMSTeamsSharePointSiteId(sharePointSiteId);
+        if (!tokenProvider) {
+          throw new Error("MS Teams Graph token provider unavailable for SharePoint file send");
+        }
+        const chatId = conversationRef.conversation?.id;

-        // Upload to SharePoint
        const uploaded = await uploadAndShareSharePoint({
          buffer: media.buffer,
          filename: fileName,
          contentType,
          tokenProvider,
-          siteId: sharePointSiteId,
+          siteId,
          chatId: chatId ?? undefined,
          usePerUserSharing: conversationType === "groupchat",
        });

-        // Get driveItem properties needed for native file card attachment
        const driveItem = await getDriveItemProperties({
-          siteId: sharePointSiteId,
+          siteId,
          itemId: uploaded.itemId,
          tokenProvider,
        });
@@ -374,22 +374,6 @@ export async function buildActivity(
        return activity;
      }

-      if (!isPersonal && media.kind !== "image" && tokenProvider) {
-        // Fallback: no SharePoint site configured, try OneDrive upload
-        const uploaded = await uploadAndShareOneDrive({
-          buffer: media.buffer,
-          filename: fileName,
-          contentType,
-          tokenProvider,
-        });
-
-        // Bot Framework doesn't support "reference" attachment type for sending
-        const fileLink = `📎 [${uploaded.name}](${uploaded.shareUrl})`;
-        const existingText = typeof activity.text === "string" ? activity.text : undefined;
-        activity.text = existingText ? `${existingText}\n\n${fileLink}` : fileLink;
-        return activity;
-      }
-
      // Image (any chat): use base64 (works for images in all conversation types)
      const base64 = media.buffer.toString("base64");
      contentUrl = `data:${media.contentType};base64,${base64}`;
@@ -416,7 +400,7 @@ export async function sendMSTeamsMessages(params: {
  messages: MSTeamsRenderedMessage[];
  retry?: false | MSTeamsSendRetryOptions;
  onRetry?: (event: MSTeamsSendRetryEvent) => void;
-  /** Token provider for OneDrive/SharePoint uploads in group chats/channels */
+  /** Token provider for SharePoint uploads in group chats/channels */
  tokenProvider?: MSTeamsAccessTokenProvider;
  /** SharePoint site ID for file uploads in group chats/channels */
  sharePointSiteId?: string;
--- a/extensions/msteams/src/monitor-handler/inbound-media.test.ts
+++ b/extensions/msteams/src/monitor-handler/inbound-media.test.ts
@@ -5,9 +5,12 @@ vi.mock("../attachments.js", () => ({
  downloadMSTeamsAttachments: vi.fn(async () => []),
  downloadMSTeamsGraphMedia: vi.fn(async () => ({ media: [] })),
  downloadMSTeamsBotFrameworkAttachments: vi.fn(async () => ({ media: [], attachmentCount: 0 })),
-  buildMSTeamsGraphMessageUrls: vi.fn(() => [
-    "https://graph.microsoft.com/v1.0/chats/c/messages/m",
-  ]),
+  buildMSTeamsGraphMessageUrl: vi.fn(
+    (params: { conversationType: string; teamAadGroupId?: string }) =>
+      params.conversationType.toLowerCase() === "channel" && params.teamAadGroupId === undefined
+        ? undefined
+        : "https://graph.microsoft.com/v1.0/teams/team-aad-guid/channels/chan/messages/m",
+  ),
  extractMSTeamsHtmlAttachmentIds: vi.fn(() => ["att-0", "att-1"]),
  isBotFrameworkPersonalChatId: vi.fn((id: string | null | undefined) => {
    if (typeof id !== "string") {
@@ -18,7 +21,7 @@ vi.mock("../attachments.js", () => ({
 }));

 import {
-  buildMSTeamsGraphMessageUrls,
+  buildMSTeamsGraphMessageUrl,
  downloadMSTeamsAttachments,
  downloadMSTeamsBotFrameworkAttachments,
  downloadMSTeamsGraphMedia,
@@ -26,15 +29,35 @@ import {
 } from "../attachments.js";
 import { resolveMSTeamsInboundMedia, resolveMSTeamsInboundMediaBody } from "./inbound-media.js";

+// Channel context by default: the Graph fallback is a channel/group code path,
+// so its trigger tests must run against a channel conversation, not a DM.
 const baseParams = {
  maxBytes: 1024 * 1024,
  tokenProvider: { getAccessToken: vi.fn(async () => "token") },
-  conversationType: "personal",
-  conversationId: "19:user_bot@unq.gbl.spaces",
-  activity: { id: "msg-1", replyToId: undefined, channelData: {} },
+  conversationType: "channel",
+  conversationId: "19:channel-thread@thread.tacv2",
+  teamAadGroupId: "team-aad-guid",
+  activity: {
+    id: "msg-1",
+    replyToId: undefined,
+    channelData: {
+      team: { id: "19:team-general@thread.tacv2", aadGroupId: "team-aad-guid" },
+      channel: { id: "19:channel-thread@thread.tacv2" },
+    },
+  },
  log: { debug: vi.fn() },
 };

+const htmlSummary = {
+  htmlAttachments: 1,
+  imgTags: 0,
+  dataImages: 0,
+  cidImages: 0,
+  srcHosts: [],
+  attachmentTags: 0,
+  attachmentIds: [],
+};
+
 function firstGraphMediaCall() {
  const [call] = vi.mocked(downloadMSTeamsGraphMedia).mock.calls;
  if (!call) {
@@ -102,30 +125,93 @@ describe("resolveMSTeamsInboundMedia graph fallback trigger", () => {
      ],
    });

-    expect(buildMSTeamsGraphMessageUrls).toHaveBeenCalled();
+    expect(buildMSTeamsGraphMessageUrl).toHaveBeenCalled();
    expect(downloadMSTeamsGraphMedia).toHaveBeenCalled();
  });

-  it("does NOT trigger Graph fallback for mention-only HTML (no <attachment> tags)", async () => {
+  it("triggers opted-in Graph fallback for text plus a tagless channel file stub", async () => {
    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
-    // Mention cards include `<at>` markers but no `<attachment id="...">`,
-    // so the extractor returns an empty ID list. The fallback must skip.
    vi.mocked(extractMSTeamsHtmlAttachmentIds).mockReturnValueOnce([]);
    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
-    vi.mocked(buildMSTeamsGraphMessageUrls).mockClear();
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();

    await resolveMSTeamsInboundMedia({
      ...baseParams,
+      graphMediaFallback: true,
+      htmlSummary,
      attachments: [
        {
-          contentType: "text/html",
-          content: '<div><at id="0">Bot</at> hello there</div>',
+          contentType: "Text/HTML; charset=utf-8",
+          content: '<div><at id="0">Bot</at></div>',
        },
      ],
    });

+    expect(buildMSTeamsGraphMessageUrl).toHaveBeenCalled();
+    expect(downloadMSTeamsGraphMedia).toHaveBeenCalled();
+  });
+
+  it("keeps marker-free Graph fallback disabled by default", async () => {
+    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
+    vi.mocked(extractMSTeamsHtmlAttachmentIds).mockReturnValueOnce([]);
+    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();
+
+    await resolveMSTeamsInboundMedia({
+      ...baseParams,
+      htmlSummary,
+      attachments: [
+        {
+          contentType: "text/html",
+          content: '<div><at id="0">Bot</at> Describe the attached image file</div>',
+        },
+      ],
+    });
+
+    expect(buildMSTeamsGraphMessageUrl).not.toHaveBeenCalled();
+    expect(downloadMSTeamsGraphMedia).not.toHaveBeenCalled();
+  });
+
+  it("triggers Graph fallback for a tagless group-chat HTML attachment", async () => {
+    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
+    vi.mocked(extractMSTeamsHtmlAttachmentIds).mockReturnValueOnce([]);
+    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();
+
+    await resolveMSTeamsInboundMedia({
+      ...baseParams,
+      graphMediaFallback: true,
+      conversationType: "groupChat",
+      conversationId: "19:group-chat@thread.v2",
+      teamAadGroupId: undefined,
+      activity: { id: "msg-1", replyToId: undefined, channelData: {} },
+      htmlSummary,
+      attachments: [{ contentType: "text/html", content: "<div>file stub</div>" }],
+    });
+
+    expect(buildMSTeamsGraphMessageUrl).toHaveBeenCalled();
+    expect(downloadMSTeamsGraphMedia).toHaveBeenCalled();
+  });
+
+  it("does not widen marker-free fallback to a Graph-compatible personal chat", async () => {
+    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
+    vi.mocked(extractMSTeamsHtmlAttachmentIds).mockReturnValueOnce([]);
+    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();
+
+    await resolveMSTeamsInboundMedia({
+      ...baseParams,
+      graphMediaFallback: true,
+      conversationType: "personal",
+      conversationId: "19:real-graph-chat@unq.gbl.spaces",
+      teamAadGroupId: undefined,
+      activity: { id: "msg-1", replyToId: undefined, channelData: {} },
+      htmlSummary,
+      attachments: [{ contentType: "text/html", content: "<div>mention only</div>" }],
+    });
+
+    expect(buildMSTeamsGraphMessageUrl).not.toHaveBeenCalled();
    expect(downloadMSTeamsGraphMedia).not.toHaveBeenCalled();
-    expect(buildMSTeamsGraphMessageUrls).not.toHaveBeenCalled();
  });

  it("does NOT trigger Graph fallback when no attachments are text/html", async () => {
@@ -133,10 +219,11 @@ describe("resolveMSTeamsInboundMedia graph fallback trigger", () => {
    // No HTML attachments at all → extractor returns [].
    vi.mocked(extractMSTeamsHtmlAttachmentIds).mockReturnValueOnce([]);
    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
-    vi.mocked(buildMSTeamsGraphMessageUrls).mockClear();
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();

    await resolveMSTeamsInboundMedia({
      ...baseParams,
+      graphMediaFallback: true,
      attachments: [
        { contentType: "image/png", contentUrl: "https://example.com/img.png" },
        { contentType: "application/pdf", contentUrl: "https://example.com/doc.pdf" },
@@ -146,6 +233,85 @@ describe("resolveMSTeamsInboundMedia graph fallback trigger", () => {
    expect(downloadMSTeamsGraphMedia).not.toHaveBeenCalled();
  });

+  it("does not resolve Graph team identity when direct media succeeds", async () => {
+    vi.mocked(downloadMSTeamsAttachments).mockResolvedValueOnce([
+      { path: "/tmp/direct.png", contentType: "image/png", placeholder: "<media:image>" },
+    ]);
+    const resolveTeamAadGroupId = vi.fn(async () => "team-aad-guid");
+
+    await resolveMSTeamsInboundMedia({
+      ...baseParams,
+      teamAadGroupId: undefined,
+      resolveTeamAadGroupId,
+      attachments: [{ contentType: "image/png", contentUrl: "https://example.com/direct.png" }],
+    });
+
+    expect(resolveTeamAadGroupId).not.toHaveBeenCalled();
+    expect(downloadMSTeamsGraphMedia).not.toHaveBeenCalled();
+  });
+
+  it("forwards canonical channel reply identifiers to the URL builder", async () => {
+    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
+    vi.mocked(extractMSTeamsHtmlAttachmentIds).mockReturnValueOnce(["att-0"]);
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();
+    vi.mocked(downloadMSTeamsGraphMedia).mockResolvedValue({ media: [] });
+
+    await resolveMSTeamsInboundMedia({
+      ...baseParams,
+      conversationMessageId: "conversation-root",
+      teamAadGroupId: "entra-team-id",
+      activity: {
+        id: "reply-id",
+        replyToId: "activity-root",
+        channelData: {
+          team: { id: "bot-framework-team-id", aadGroupId: "stale-activity-value" },
+          channel: { id: "channel-id" },
+        },
+      },
+      attachments: [
+        {
+          contentType: "text/html",
+          content: '<attachment id="att-0"></attachment>',
+        },
+      ],
+    });
+
+    expect(buildMSTeamsGraphMessageUrl).toHaveBeenCalledWith({
+      conversationType: "channel",
+      conversationId: "19:channel-thread@thread.tacv2",
+      messageId: "reply-id",
+      threadRootMessageId: "conversation-root",
+      teamAadGroupId: "entra-team-id",
+      channelId: "channel-id",
+    });
+  });
+
+  it("fails closed when a channel AAD group ID could not be resolved", async () => {
+    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
+    vi.mocked(extractMSTeamsHtmlAttachmentIds).mockReturnValueOnce(["att-0"]);
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();
+    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
+
+    await resolveMSTeamsInboundMedia({
+      ...baseParams,
+      teamAadGroupId: undefined,
+      attachments: [
+        {
+          contentType: "text/html",
+          content: '<attachment id="att-0"></attachment>',
+        },
+      ],
+    });
+
+    expect(buildMSTeamsGraphMessageUrl).toHaveBeenCalledWith(
+      expect.objectContaining({
+        teamAadGroupId: undefined,
+        channelId: "19:channel-thread@thread.tacv2",
+      }),
+    );
+    expect(downloadMSTeamsGraphMedia).not.toHaveBeenCalled();
+  });
+
  it("does NOT trigger Graph fallback when direct download succeeds", async () => {
    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([
      { path: "/tmp/img.png", contentType: "image/png", placeholder: "[image]" },
@@ -188,16 +354,12 @@ describe("resolveMSTeamsInboundMedia graph fallback trigger", () => {
    // message fetch failures instead of swallowing them (#51749).
    expect(call?.logger).toBe(log);
    expect(log.debug).toHaveBeenCalledWith("graph media fetch empty", {
-      attempts: [
-        {
-          url: "https://graph.microsoft.com/v1.0/chats/c/messages/m",
-          hostedStatus: undefined,
-          attachmentStatus: undefined,
-          hostedCount: undefined,
-          attachmentCount: undefined,
-          tokenError: undefined,
-        },
-      ],
+      messageUrl: "https://graph.microsoft.com/v1.0/teams/team-aad-guid/channels/chan/messages/m",
+      hostedStatus: undefined,
+      attachmentStatus: undefined,
+      hostedCount: undefined,
+      attachmentCount: undefined,
+      tokenError: undefined,
      attachmentIdCount: 1,
    });
  });
@@ -209,6 +371,7 @@ describe("resolveMSTeamsInboundMedia bot framework DM routing", () => {
    conversationType: "personal",
    conversationId: "a:1dRsHCobZ1AxURzY05Dc",
    serviceUrl: "https://smba.trafficmanager.net/amer/",
+    activity: { id: "msg-1", replyToId: undefined, channelData: {} },
  };

  it("routes 'a:' conversation IDs through the Bot Framework attachment endpoint", async () => {
@@ -245,7 +408,7 @@ describe("resolveMSTeamsInboundMedia bot framework DM routing", () => {
    expect(mediaList[0].path).toBe("/tmp/report.pdf");
  });

-  it("skips the Graph fallback entirely for 'a:' conversation IDs", async () => {
+  it("skips Graph fallback for an 'a:' conversation without an exact Graph chat ID", async () => {
    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
    vi.mocked(downloadMSTeamsBotFrameworkAttachments).mockClear();
    vi.mocked(downloadMSTeamsBotFrameworkAttachments).mockResolvedValue({
@@ -253,7 +416,7 @@ describe("resolveMSTeamsInboundMedia bot framework DM routing", () => {
      attachmentCount: 1,
    });
    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
-    vi.mocked(buildMSTeamsGraphMessageUrls).mockClear();
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();

    await resolveMSTeamsInboundMedia({
      ...dmParams,
@@ -266,7 +429,7 @@ describe("resolveMSTeamsInboundMedia bot framework DM routing", () => {
    });

    expect(downloadMSTeamsBotFrameworkAttachments).toHaveBeenCalled();
-    expect(buildMSTeamsGraphMessageUrls).not.toHaveBeenCalled();
+    expect(buildMSTeamsGraphMessageUrl).not.toHaveBeenCalled();
    expect(downloadMSTeamsGraphMedia).not.toHaveBeenCalled();
  });

@@ -277,8 +440,10 @@ describe("resolveMSTeamsInboundMedia bot framework DM routing", () => {

    await resolveMSTeamsInboundMedia({
      ...baseParams,
+      conversationType: "personal",
      conversationId: "19:abc@thread.tacv2",
      serviceUrl: "https://smba.trafficmanager.net/amer/",
+      activity: { id: "msg-1", replyToId: undefined, channelData: {} },
      attachments: [
        {
          contentType: "text/html",
@@ -318,7 +483,7 @@ describe("resolveMSTeamsInboundMedia bot framework DM routing", () => {
    vi.mocked(downloadMSTeamsAttachments).mockResolvedValue([]);
    vi.mocked(downloadMSTeamsBotFrameworkAttachments).mockClear();
    vi.mocked(downloadMSTeamsGraphMedia).mockClear();
-    vi.mocked(buildMSTeamsGraphMessageUrls).mockClear();
+    vi.mocked(buildMSTeamsGraphMessageUrl).mockClear();
    const log = { debug: vi.fn() };

    await resolveMSTeamsInboundMedia({
@@ -326,6 +491,7 @@ describe("resolveMSTeamsInboundMedia bot framework DM routing", () => {
      log,
      conversationType: "personal",
      conversationId: "a:bf-dm-id",
+      activity: { id: "msg-1", replyToId: undefined, channelData: {} },
      attachments: [
        {
          contentType: "text/html",
--- a/extensions/msteams/src/monitor-handler/inbound-media.ts
+++ b/extensions/msteams/src/monitor-handler/inbound-media.ts
@@ -1,7 +1,7 @@
 // Msteams plugin module implements inbound media behavior.
 import { formatInboundMediaUnavailableText } from "openclaw/plugin-sdk/channel-inbound";
 import {
-  buildMSTeamsGraphMessageUrls,
+  buildMSTeamsGraphMessageUrl,
  downloadMSTeamsAttachments,
  downloadMSTeamsBotFrameworkAttachments,
  downloadMSTeamsGraphMedia,
@@ -12,13 +12,22 @@ import {
  type MSTeamsHtmlAttachmentSummary,
  type MSTeamsInboundMedia,
 } from "../attachments.js";
+import type { MSTeamsAttachmentDownloadLogger } from "../attachments/shared.js";
+import type { MSTeamsRequestDeadline } from "../request-timeout.js";
 import type { MSTeamsTurnContext } from "../sdk-types.js";

-type MSTeamsLogger = {
-  debug?: (message: string, meta?: Record<string, unknown>) => void;
-  warn?: (message: string, meta?: Record<string, unknown>) => void;
-  error?: (message: string, meta?: Record<string, unknown>) => void;
-};
+export function shouldAttemptMSTeamsGraphMediaFallback(params: {
+  conversationType: string;
+  htmlSummary?: MSTeamsHtmlAttachmentSummary;
+  graphMediaFallback?: boolean;
+}): boolean {
+  const conversationType = params.conversationType.trim().toLowerCase();
+  return (
+    params.graphMediaFallback === true &&
+    (conversationType === "channel" || conversationType === "groupchat") &&
+    (params.htmlSummary?.htmlAttachments ?? 0) > 0
+  );
+}

 export function resolveMSTeamsInboundMediaBody(params: {
  body: string;
@@ -52,9 +61,15 @@ export async function resolveMSTeamsInboundMedia(params: {
  conversationType: string;
  conversationId: string;
  conversationMessageId?: string;
+  teamAadGroupId?: string;
+  /** Resolve canonical channel identity only if direct media recovery misses. */
+  resolveTeamAadGroupId?: () => Promise<string | undefined>;
  serviceUrl?: string;
  activity: Pick<MSTeamsTurnContext["activity"], "id" | "replyToId" | "channelData">;
-  log: MSTeamsLogger;
+  log: MSTeamsAttachmentDownloadLogger;
+  deadline?: MSTeamsRequestDeadline;
+  /** Opt into Graph lookup when Teams strips file markers from channel/group HTML. */
+  graphMediaFallback?: boolean;
  /** When true, embeds original filename in stored path for later extraction. */
  preserveFilenames?: boolean;
 }): Promise<MSTeamsInboundMedia[]> {
@@ -67,6 +82,7 @@ export async function resolveMSTeamsInboundMedia(params: {
    conversationType,
    conversationId,
    conversationMessageId,
+    teamAadGroupId,
    serviceUrl,
    activity,
    log,
@@ -80,23 +96,28 @@ export async function resolveMSTeamsInboundMedia(params: {
    allowHosts,
    authAllowHosts: params.authAllowHosts,
    preserveFilenames,
+    deadline: params.deadline,
    logger: log,
  });

  if (mediaList.length === 0) {
-    // Gate the Graph/Bot Framework media fallback on the presence of real
-    // `<attachment id="...">` tags inside any `text/html` attachment. Teams
-    // delivers @mention cards and other chrome as `text/html` attachments
-    // too, so keying off contentType alone produces spurious 404 diagnostics
-    // for every mention-only message and masks real file attachments (#58617).
+    // Explicit attachment markers remain the fallback gate for personal chats.
+    // Channel and group-chat activities can omit them while Graph holds a file.
    const attachmentIds = extractMSTeamsHtmlAttachmentIds(attachments);
    const hasHtmlFileAttachment = attachmentIds.length > 0;
+    const hasChannelOrGroupHtml = shouldAttemptMSTeamsGraphMediaFallback({
+      conversationType,
+      htmlSummary,
+      graphMediaFallback: params.graphMediaFallback,
+    });
+    const shouldFetchGraphMessage = hasHtmlFileAttachment || hasChannelOrGroupHtml;
+    const isBotFrameworkPersonalChat = isBotFrameworkPersonalChatId(conversationId);

    // Personal DMs with the bot use Bot Framework conversation IDs (`a:...`
    // or `8:orgid:...`) which Graph's `/chats/{id}` endpoint rejects with
    // "Invalid ThreadId". Fetch media via the Bot Framework v3 attachments
    // endpoint instead, which speaks the same identifier space.
-    if (hasHtmlFileAttachment && isBotFrameworkPersonalChatId(conversationId)) {
+    if (hasHtmlFileAttachment && isBotFrameworkPersonalChat) {
      if (!serviceUrl) {
        log.debug?.("bot framework attachment skipped (missing serviceUrl)", {
          conversationType,
@@ -111,6 +132,7 @@ export async function resolveMSTeamsInboundMedia(params: {
          allowHosts,
          authAllowHosts: params.authAllowHosts,
          preserveFilenames,
+          deadline: params.deadline,
        });
        if (bfMedia.media.length > 0) {
          mediaList = bfMedia.media;
@@ -123,20 +145,20 @@ export async function resolveMSTeamsInboundMedia(params: {
      }
    }

-    if (
-      hasHtmlFileAttachment &&
-      mediaList.length === 0 &&
-      !isBotFrameworkPersonalChatId(conversationId)
-    ) {
-      const messageUrls = buildMSTeamsGraphMessageUrls({
+    if (shouldFetchGraphMessage && mediaList.length === 0 && !isBotFrameworkPersonalChat) {
+      const graphTeamAadGroupId =
+        conversationType.trim().toLowerCase() === "channel" && !teamAadGroupId
+          ? await params.resolveTeamAadGroupId?.()
+          : teamAadGroupId;
+      const messageUrl = buildMSTeamsGraphMessageUrl({
        conversationType,
        conversationId,
        messageId: activity.id ?? undefined,
-        replyToId: activity.replyToId ?? undefined,
-        conversationMessageId,
-        channelData: activity.channelData,
+        threadRootMessageId: conversationMessageId ?? activity.replyToId,
+        teamAadGroupId: graphTeamAadGroupId,
+        channelId: activity.channelData?.channel?.id,
      });
-      if (messageUrls.length === 0) {
+      if (!messageUrl) {
        log.debug?.("graph message url unavailable", {
          conversationType,
          hasChannelData: Boolean(activity.channelData),
@@ -144,44 +166,27 @@ export async function resolveMSTeamsInboundMedia(params: {
          replyToId: activity.replyToId ?? undefined,
        });
      } else {
-        const attempts: Array<{
-          url: string;
-          hostedStatus?: number;
-          attachmentStatus?: number;
-          hostedCount?: number;
-          attachmentCount?: number;
-          tokenError?: boolean;
-        }> = [];
-        for (const messageUrl of messageUrls) {
-          const graphMedia = await downloadMSTeamsGraphMedia({
+        const graphMedia = await downloadMSTeamsGraphMedia({
+          messageUrl,
+          tokenProvider,
+          maxBytes,
+          allowHosts,
+          authAllowHosts: params.authAllowHosts,
+          preserveFilenames,
+          deadline: params.deadline,
+          logger: log,
+        });
+        if (graphMedia.media.length > 0) {
+          mediaList = graphMedia.media;
+        }
+        if (mediaList.length === 0) {
+          log.debug?.("graph media fetch empty", {
            messageUrl,
-            tokenProvider,
-            maxBytes,
-            allowHosts,
-            authAllowHosts: params.authAllowHosts,
-            preserveFilenames,
-            log,
-            logger: log,
-          });
-          attempts.push({
-            url: messageUrl,
            hostedStatus: graphMedia.hostedStatus,
            attachmentStatus: graphMedia.attachmentStatus,
            hostedCount: graphMedia.hostedCount,
            attachmentCount: graphMedia.attachmentCount,
            tokenError: graphMedia.tokenError,
-          });
-          if (graphMedia.media.length > 0) {
-            mediaList = graphMedia.media;
-            break;
-          }
-          if (graphMedia.tokenError) {
-            break;
-          }
-        }
-        if (mediaList.length === 0) {
-          log.debug?.("graph media fetch empty", {
-            attempts,
            attachmentIdCount: attachmentIds.length,
          });
        }
--- a/extensions/msteams/src/monitor-handler/message-handler.authz.test.ts
+++ b/extensions/msteams/src/monitor-handler/message-handler.authz.test.ts
@@ -78,13 +78,16 @@ vi.mock("../graph-thread.js", () => {
  return {
    stripHtmlFromTeamsMessage,
    formatThreadContext,
-    resolveTeamGroupId: graphThreadMockState.resolveTeamGroupId,
    fetchChannelMessage: graphThreadMockState.fetchChannelMessage,
    fetchThreadReplies: graphThreadMockState.fetchThreadReplies,
    fetchChatMessageText: graphThreadMockState.fetchChatMessageText,
  };
 });

+vi.mock("../team-identity.js", () => ({
+  resolveTeamGroupId: graphThreadMockState.resolveTeamGroupId,
+}));
+
 describe("msteams monitor handler authz", () => {
  function createDeps(
    cfg: OpenClawConfig,
@@ -1061,6 +1064,10 @@ describe("msteams monitor handler authz", () => {
      "token",
      "19:dm@thread.v2",
      "message-1",
+      expect.objectContaining({
+        label: "MS Teams inbound preprocessing",
+        timeoutMs: 10_000,
+      }),
    );
    expect(recordFromMockCall(firstSettledDispatch().ctxPayload).SupplementalContext).toMatchObject(
      {
--- a/extensions/msteams/src/monitor-handler/message-handler.dm-media.test.ts
+++ b/extensions/msteams/src/monitor-handler/message-handler.dm-media.test.ts
@@ -1,55 +1,68 @@
-// Msteams tests cover message handlerm media plugin behavior.
-import { describe, expect, it } from "vitest";
-import { translateMSTeamsDmConversationIdForGraph } from "../inbound.js";
+// Msteams tests cover personal-chat media identifier routing.
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import type { OpenClawConfig } from "../../runtime-api.js";
+import type { resolveMSTeamsInboundMedia } from "./inbound-media.js";
+import "./message-handler-mock-support.test-support.js";

-describe("translateMSTeamsDmConversationIdForGraph", () => {
-  it("translates a: conversation ID to Graph format for DMs", () => {
-    const result = translateMSTeamsDmConversationIdForGraph({
-      isDirectMessage: true,
-      conversationId: "a:1abc2def3",
-      aadObjectId: "user-aad-id",
-      appId: "bot-app-id",
-    });
-    expect(result).toBe("19:user-aad-id_bot-app-id@unq.gbl.spaces");
+const inboundMediaMockState = vi.hoisted(() => ({
+  resolve: vi.fn<typeof resolveMSTeamsInboundMedia>(),
+}));
+
+vi.mock("./inbound-media.js", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("./inbound-media.js")>();
+  return {
+    ...actual,
+    resolveMSTeamsInboundMedia: inboundMediaMockState.resolve,
+  };
+});
+
+import { createMSTeamsMessageHandler } from "./message-handler.js";
+import { buildChannelActivity, createMessageHandlerDeps } from "./message-handler.test-support.js";
+
+const cfg = {
+  channels: { msteams: { dmPolicy: "open", allowFrom: ["*"] } },
+} as OpenClawConfig;
+
+function buildPersonalAttachmentActivity() {
+  return buildChannelActivity({
+    text: "please inspect this file",
+    conversation: { id: "a:bot-framework-dm", conversationType: "personal" },
+    channelData: {},
+    attachments: [
+      {
+        contentType: "text/html",
+        content: '<div><attachment id="attachment-1"></attachment></div>',
+      },
+    ],
+    entities: [],
+  });
+}
+
+function firstInboundMediaParams(): Record<string, unknown> {
+  const [call] = inboundMediaMockState.resolve.mock.calls;
+  if (!call?.[0] || typeof call[0] !== "object") {
+    throw new Error("expected inbound media parameters");
+  }
+  return call[0] as Record<string, unknown>;
+}
+
+describe("msteams personal media identifier routing", () => {
+  beforeEach(() => {
+    inboundMediaMockState.resolve.mockReset();
+    inboundMediaMockState.resolve.mockResolvedValue([]);
  });

-  it("passes through non-a: conversation IDs unchanged", () => {
-    const result = translateMSTeamsDmConversationIdForGraph({
-      isDirectMessage: true,
-      conversationId: "19:existing@unq.gbl.spaces",
-      aadObjectId: "user-aad-id",
-      appId: "bot-app-id",
-    });
-    expect(result).toBe("19:existing@unq.gbl.spaces");
-  });
+  it("preserves the raw Bot Framework ID for personal attachment recovery", async () => {
+    const { deps } = createMessageHandlerDeps(cfg);
+    const handler = createMSTeamsMessageHandler(deps);

-  it("passes through when aadObjectId is missing", () => {
-    const result = translateMSTeamsDmConversationIdForGraph({
-      isDirectMessage: true,
-      conversationId: "a:1abc2def3",
-      aadObjectId: null,
-      appId: "bot-app-id",
-    });
-    expect(result).toBe("a:1abc2def3");
-  });
+    await handler({
+      activity: buildPersonalAttachmentActivity(),
+      sendActivity: vi.fn(async () => undefined),
+    } as unknown as Parameters<typeof handler>[0]);

-  it("passes through when appId is missing", () => {
-    const result = translateMSTeamsDmConversationIdForGraph({
-      isDirectMessage: true,
-      conversationId: "a:1abc2def3",
-      aadObjectId: "user-aad-id",
-      appId: null,
-    });
-    expect(result).toBe("a:1abc2def3");
-  });
-
-  it("passes through for non-DM conversations even with a: prefix", () => {
-    const result = translateMSTeamsDmConversationIdForGraph({
-      isDirectMessage: false,
-      conversationId: "a:1abc2def3",
-      aadObjectId: "user-aad-id",
-      appId: "bot-app-id",
-    });
-    expect(result).toBe("a:1abc2def3");
+    const params = firstInboundMediaParams();
+    expect(params).toMatchObject({ conversationId: "a:bot-framework-dm" });
+    expect(params).not.toHaveProperty("graphChatId");
  });
 });
--- a/extensions/msteams/src/monitor-handler/message-handler.media.test.ts
+++ b/extensions/msteams/src/monitor-handler/message-handler.media.test.ts
@@ -0,0 +1,253 @@
+// Msteams tests cover message handler media recovery behavior.
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import type { OpenClawConfig } from "../../runtime-api.js";
+import type { resolveMSTeamsInboundMedia } from "./inbound-media.js";
+import "./message-handler-mock-support.test-support.js";
+import { getRuntimeApiMockState } from "./message-handler-mock-support.test-support.js";
+
+const inboundMediaMockState = vi.hoisted(() => ({
+  resolve: vi.fn<typeof resolveMSTeamsInboundMedia>(),
+}));
+
+vi.mock("./inbound-media.js", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("./inbound-media.js")>();
+  return {
+    ...actual,
+    resolveMSTeamsInboundMedia: inboundMediaMockState.resolve,
+  };
+});
+
+import { createMSTeamsMessageHandler } from "./message-handler.js";
+import { buildChannelActivity, createMessageHandlerDeps } from "./message-handler.test-support.js";
+
+const runtimeApiMockState = getRuntimeApiMockState();
+const taglessHtmlAttachment = {
+  contentType: "text/html",
+  content: "<div><at>Bot</at></div>",
+};
+
+function firstDispatchedContext(): Record<string, unknown> {
+  const call = runtimeApiMockState.dispatchReplyFromConfigWithSettledDispatcher.mock.calls[0];
+  const params = call?.[0] as { ctxPayload?: unknown } | undefined;
+  if (!params?.ctxPayload || typeof params.ctxPayload !== "object") {
+    throw new Error("expected dispatched Teams context");
+  }
+  return params.ctxPayload as Record<string, unknown>;
+}
+
+describe("msteams message handler Graph media recovery", () => {
+  const cfg = {
+    channels: {
+      msteams: { groupPolicy: "open", requireMention: false, graphMediaFallback: true },
+    },
+  } as OpenClawConfig;
+
+  beforeEach(() => {
+    inboundMediaMockState.resolve.mockReset();
+    runtimeApiMockState.dispatchReplyFromConfigWithSettledDispatcher.mockClear();
+  });
+
+  it.each([
+    {
+      label: "channel",
+      conversation: { id: "19:channel@thread.tacv2", conversationType: "channel" },
+      channelData: {
+        team: { id: "19:team@thread.skype" },
+        channel: { id: "19:channel@thread.tacv2" },
+      },
+    },
+    {
+      label: "group chat",
+      conversation: { id: "19:group@thread.v2", conversationType: "groupChat" },
+      channelData: {},
+    },
+  ])(
+    "dispatches a tagless $label file with instruction text after Graph recovery",
+    async (entry) => {
+      inboundMediaMockState.resolve.mockResolvedValue([
+        {
+          path: "/tmp/from-graph.pdf",
+          contentType: "application/pdf",
+          placeholder: "<media:document>",
+        },
+      ]);
+      const { deps, getTeamDetails } = createMessageHandlerDeps(cfg);
+      const handler = createMSTeamsMessageHandler(deps);
+
+      await handler({
+        activity: buildChannelActivity({
+          text: "<at>Bot</at> Describe the attached image file",
+          conversation: entry.conversation,
+          channelData: entry.channelData,
+          attachments: [taglessHtmlAttachment],
+        }),
+        getTeamDetails,
+        sendActivity: vi.fn(async () => undefined),
+      } as unknown as Parameters<typeof handler>[0]);
+
+      expect(inboundMediaMockState.resolve).toHaveBeenCalledTimes(1);
+      expect(getTeamDetails).toHaveBeenCalledTimes(entry.label === "channel" ? 1 : 0);
+      expect(inboundMediaMockState.resolve).toHaveBeenCalledWith(
+        expect.objectContaining({
+          graphMediaFallback: true,
+          teamAadGroupId: undefined,
+          resolveTeamAadGroupId: expect.any(Function),
+        }),
+      );
+      expect(
+        runtimeApiMockState.dispatchReplyFromConfigWithSettledDispatcher,
+      ).toHaveBeenCalledTimes(1);
+      expect(firstDispatchedContext()).toMatchObject({
+        BodyForAgent: "Describe the attached image file",
+        MediaPaths: ["/tmp/from-graph.pdf"],
+        NativeChannelId:
+          entry.label === "channel" ? "team-aad-group/19:channel@thread.tacv2" : undefined,
+      });
+    },
+  );
+
+  it("keeps explicit attachment markers working without the opt-in fallback", async () => {
+    inboundMediaMockState.resolve.mockResolvedValue([
+      {
+        path: "/tmp/explicit.pdf",
+        contentType: "application/pdf",
+        placeholder: "<media:document>",
+      },
+    ]);
+    const defaultCfg = {
+      channels: { msteams: { groupPolicy: "open", requireMention: false } },
+    } as OpenClawConfig;
+    const { deps, getTeamDetails } = createMessageHandlerDeps(defaultCfg);
+    const handler = createMSTeamsMessageHandler(deps);
+
+    await handler({
+      activity: buildChannelActivity({
+        text: "<at>Bot</at>",
+        channelData: {
+          team: { id: "19:team@thread.skype", aadGroupId: "team-aad" },
+          channel: { id: "19:channel@thread.tacv2" },
+        },
+        attachments: [
+          {
+            contentType: "text/html",
+            content: '<div><attachment id="file-1"></attachment></div>',
+          },
+        ],
+      }),
+      getTeamDetails,
+      sendActivity: vi.fn(async () => undefined),
+    } as unknown as Parameters<typeof handler>[0]);
+
+    expect(inboundMediaMockState.resolve).toHaveBeenCalledWith(
+      expect.objectContaining({ graphMediaFallback: undefined }),
+    );
+    expect(firstDispatchedContext()).toMatchObject({
+      BodyForAgent: "<media:document>",
+      MediaPaths: ["/tmp/explicit.pdf"],
+    });
+  });
+
+  it("does not dispatch or enqueue a ghost event when Graph recovery is empty", async () => {
+    inboundMediaMockState.resolve.mockResolvedValue([]);
+    const { deps, enqueueSystemEvent, getTeamDetails } = createMessageHandlerDeps(cfg);
+    const handler = createMSTeamsMessageHandler(deps);
+
+    await handler({
+      activity: buildChannelActivity({
+        text: "<at>Bot</at>",
+        channelData: {
+          team: { id: "19:team@thread.skype", aadGroupId: "team-aad" },
+          channel: { id: "19:channel@thread.tacv2" },
+        },
+        attachments: [taglessHtmlAttachment],
+      }),
+      getTeamDetails,
+      sendActivity: vi.fn(async () => undefined),
+    } as unknown as Parameters<typeof handler>[0]);
+
+    expect(inboundMediaMockState.resolve).toHaveBeenCalledTimes(1);
+    expect(getTeamDetails).not.toHaveBeenCalled();
+    expect(runtimeApiMockState.dispatchReplyFromConfigWithSettledDispatcher).not.toHaveBeenCalled();
+    expect(enqueueSystemEvent).not.toHaveBeenCalled();
+  });
+
+  it("keeps ordinary text when the Teams API cannot resolve the channel AAD group ID", async () => {
+    inboundMediaMockState.resolve.mockResolvedValue([]);
+    const getTeamDetails = vi.fn(async () => {
+      throw new Error("Teams API unavailable");
+    });
+    const { deps } = createMessageHandlerDeps(cfg, { getTeamDetails });
+    const handler = createMSTeamsMessageHandler(deps);
+
+    await handler({
+      activity: buildChannelActivity({
+        text: "<at>Bot</at> keep this text",
+        channelData: {
+          team: { id: "19:team-unresolved@thread.skype" },
+          channel: { id: "19:channel@thread.tacv2" },
+        },
+        attachments: [taglessHtmlAttachment],
+      }),
+      getTeamDetails,
+      sendActivity: vi.fn(async () => undefined),
+    } as unknown as Parameters<typeof handler>[0]);
+
+    expect(getTeamDetails).toHaveBeenCalledWith("19:team-unresolved@thread.skype");
+    expect(inboundMediaMockState.resolve).toHaveBeenCalledWith(
+      expect.objectContaining({ teamAadGroupId: undefined }),
+    );
+    expect(firstDispatchedContext()).toMatchObject({
+      BodyForAgent: "keep this text",
+      NativeChannelId: undefined,
+    });
+  });
+
+  it("uses the canonical AAD group ID for ordinary channel action context", async () => {
+    inboundMediaMockState.resolve.mockResolvedValue([]);
+    const { deps, getTeamDetails } = createMessageHandlerDeps(cfg);
+    const handler = createMSTeamsMessageHandler(deps);
+
+    await handler({
+      activity: buildChannelActivity({
+        text: "ordinary channel message",
+        channelData: {
+          team: { id: "19:raw-team@thread.skype" },
+          channel: { id: "19:channel@thread.tacv2" },
+        },
+        attachments: [],
+      }),
+      getTeamDetails,
+      sendActivity: vi.fn(async () => undefined),
+    } as unknown as Parameters<typeof handler>[0]);
+
+    expect(getTeamDetails).toHaveBeenCalledWith("19:raw-team@thread.skype");
+    expect(firstDispatchedContext()).toMatchObject({
+      NativeChannelId: "team-aad-group/19:general@thread.tacv2",
+    });
+    expect(JSON.stringify(firstDispatchedContext())).not.toContain("19:raw-team@thread.skype/");
+  });
+
+  it("does not create a ghost event for unmentioned empty HTML", async () => {
+    const mentionCfg = {
+      channels: { msteams: { groupPolicy: "open", requireMention: true } },
+    } as OpenClawConfig;
+    inboundMediaMockState.resolve.mockResolvedValue([]);
+    const { deps, enqueueSystemEvent, getTeamDetails } = createMessageHandlerDeps(mentionCfg);
+    const handler = createMSTeamsMessageHandler(deps);
+
+    await handler({
+      activity: buildChannelActivity({
+        text: "",
+        entities: [],
+        attachments: [{ contentType: "text/html", content: "<div></div>" }],
+      }),
+      getTeamDetails,
+      sendActivity: vi.fn(async () => undefined),
+    } as unknown as Parameters<typeof handler>[0]);
+
+    expect(getTeamDetails).not.toHaveBeenCalled();
+    expect(inboundMediaMockState.resolve).not.toHaveBeenCalled();
+    expect(enqueueSystemEvent).not.toHaveBeenCalled();
+    expect(runtimeApiMockState.dispatchReplyFromConfigWithSettledDispatcher).not.toHaveBeenCalled();
+  });
+});
--- a/extensions/msteams/src/monitor-handler/message-handler.test-support.ts
+++ b/extensions/msteams/src/monitor-handler/message-handler.test-support.ts
@@ -18,6 +18,7 @@ type MessageHandlerDepsOptions = {
  shouldHandleTextCommands?: PluginRuntime["channel"]["commands"]["shouldHandleTextCommands"];
  createInboundDebouncer?: PluginRuntime["channel"]["debounce"]["createInboundDebouncer"];
  resolveInboundDebounceMs?: PluginRuntime["channel"]["debounce"]["resolveInboundDebounceMs"];
+  getTeamDetails?: ReturnType<typeof vi.fn>;
 };

 export function createMessageHandlerDeps(
@@ -39,6 +40,8 @@ export function createMessageHandlerDeps(
      lastRoutePolicy: "session" as const,
      matchedBy: "default" as const,
    }));
+  const getTeamDetails =
+    options.getTeamDetails ?? vi.fn(async () => ({ aadGroupId: "team-aad-group" }));

  installMSTeamsTestRuntime({
    enqueueSystemEvent,
@@ -57,7 +60,7 @@ export function createMessageHandlerDeps(
  });

  const conversationStore = {
-    get: vi.fn(async () => null),
+    get: vi.fn<MSTeamsMessageHandlerDeps["conversationStore"]["get"]>(async () => null),
    upsert: vi.fn(async () => undefined),
    list: vi.fn(async () => []),
    remove: vi.fn(async () => false),
@@ -94,6 +97,7 @@ export function createMessageHandlerDeps(
    upsertPairingRequest,
    recordInboundSession,
    resolveAgentRoute,
+    getTeamDetails,
  };
 }

--- a/extensions/msteams/src/monitor-handler/message-handler.thread-parent.test.ts
+++ b/extensions/msteams/src/monitor-handler/message-handler.thread-parent.test.ts
@@ -15,7 +15,9 @@ const runtimeApiMockState = getRuntimeApiMockState();
 const fetchChannelMessageMock = vi.hoisted(() => vi.fn());
 const fetchThreadRepliesMock = vi.hoisted(() => vi.fn(async () => []));
 const fetchChatMessageTextMock = vi.hoisted(() => vi.fn(async () => undefined));
-const resolveTeamGroupIdMock = vi.hoisted(() => vi.fn(async () => "group-1"));
+const resolveTeamGroupIdMock = vi.hoisted(() =>
+  vi.fn<() => Promise<string | undefined>>(async () => "group-1"),
+);

 vi.mock("../graph-thread.js", () => {
  const stripHtmlFromTeamsMessage = (html: string) =>
@@ -32,13 +34,16 @@ vi.mock("../graph-thread.js", () => {
      .trim();
  return {
    stripHtmlFromTeamsMessage,
-    resolveTeamGroupId: resolveTeamGroupIdMock,
    fetchChannelMessage: fetchChannelMessageMock,
    fetchThreadReplies: fetchThreadRepliesMock,
    fetchChatMessageText: fetchChatMessageTextMock,
  };
 });

+vi.mock("../team-identity.js", () => ({
+  resolveTeamGroupId: resolveTeamGroupIdMock,
+}));
+
 describe("msteams thread parent context injection", () => {
  type MessageHandler = ReturnType<typeof createMSTeamsMessageHandler>;
  type ParentSystemEventCall = [
@@ -104,6 +109,21 @@ describe("msteams thread parent context injection", () => {
    expect(parentCall[1]?.contextKey).toContain("msteams:thread-parent:");
    expect(parentCall[1]?.contextKey).toContain("thread-root-123");
    expect(parentCall[1]).toMatchObject({});
+    expect(fetchChannelMessageMock).toHaveBeenCalledWith(
+      "token",
+      "group-1",
+      channelConversationId,
+      "thread-root-123",
+      expect.objectContaining({ label: "MS Teams inbound preprocessing" }),
+    );
+    expect(fetchThreadRepliesMock).toHaveBeenCalledWith(
+      "token",
+      "group-1",
+      channelConversationId,
+      "thread-root-123",
+      50,
+      expect.objectContaining({ label: "MS Teams inbound preprocessing" }),
+    );
  });

  it("caches parent fetches across thread replies in the same session", async () => {
@@ -190,6 +210,20 @@ describe("msteams thread parent context injection", () => {
    expect(enqueueSystemEvent).toHaveBeenCalled();
  });

+  it("does not send the raw Bot Framework team ID to thread Graph paths", async () => {
+    resolveTeamGroupIdMock.mockResolvedValueOnce(undefined);
+    const { deps } = createMessageHandlerDeps(cfg);
+    const handler = createMSTeamsMessageHandler(deps);
+
+    await dispatchThreadReply(handler, "msg-reply-no-aad-group");
+
+    expect(fetchChannelMessageMock).not.toHaveBeenCalled();
+    expect(fetchThreadRepliesMock).not.toHaveBeenCalled();
+    expect(runtimeApiMockState.dispatchReplyFromConfigWithSettledDispatcher).toHaveBeenCalledTimes(
+      1,
+    );
+  });
+
  it("does not fetch parent for DM replyToId", async () => {
    fetchChannelMessageMock.mockResolvedValue({
      id: "x",
--- a/extensions/msteams/src/monitor-handler/message-handler.ts
+++ b/extensions/msteams/src/monitor-handler/message-handler.ts
@@ -33,22 +33,21 @@ import { tryNormalizeBotFrameworkServiceUrl } from "../bot-framework-service-url
 import type { StoredConversationReference } from "../conversation-store.js";
 import { formatUnknownError } from "../errors.js";
 import {
+  fetchChannelMessage,
  fetchChatMessageText,
  fetchThreadReplies,
  formatThreadContext,
-  resolveTeamGroupId,
  type GraphThreadMessage,
 } from "../graph-thread.js";
-import { resolveGraphChatId } from "../graph-upload.js";
 import {
  extractMSTeamsConversationMessageId,
  extractMSTeamsQuoteInfo,
  normalizeMSTeamsConversationId,
  parseMSTeamsActivityTimestamp,
  stripMSTeamsMentionTags,
-  translateMSTeamsDmConversationIdForGraph,
  wasMSTeamsBotMentioned,
 } from "../inbound.js";
+import { createMSTeamsInboundDeadline, withMSTeamsRequestDeadline } from "../request-timeout.js";
 import {
  fetchParentMessageCached,
  formatParentContextEvent,
@@ -90,8 +89,13 @@ import {
  recordMSTeamsSentMessage,
  wasMSTeamsMessageSentWithPersistence,
 } from "../sent-message-cache.js";
+import { resolveTeamGroupId } from "../team-identity.js";
 import { resolveMSTeamsSenderAccess } from "./access.js";
-import { resolveMSTeamsInboundMedia, resolveMSTeamsInboundMediaBody } from "./inbound-media.js";
+import {
+  resolveMSTeamsInboundMedia,
+  resolveMSTeamsInboundMediaBody,
+  shouldAttemptMSTeamsGraphMediaFallback,
+} from "./inbound-media.js";
 import { resolveMSTeamsRouteSessionKey } from "./thread-session.js";

 function formatMSTeamsSenderReason(params: {
@@ -461,7 +465,14 @@ export function createMSTeamsMessageHandler(deps: MSTeamsMessageHandlerDeps) {
      return;
    }

-    if (!rawBody) {
+    const mayRecoverGraphMedia =
+      Boolean(htmlSummary?.attachmentIds.length) ||
+      shouldAttemptMSTeamsGraphMediaFallback({
+        conversationType,
+        htmlSummary: htmlSummary ?? undefined,
+        graphMediaFallback: msteamsCfg?.graphMediaFallback,
+      });
+    if (!rawBody && !mayRecoverGraphMedia) {
      log.debug?.("skipping empty message after stripping mentions");
      return;
    }
@@ -539,110 +550,124 @@ export function createMSTeamsMessageHandler(deps: MSTeamsMessageHandlerDeps) {
          requireMention,
          mentioned,
        });
-        enqueuePrimaryMessageSystemEvent();
-        createChannelHistoryWindow({ historyMap: conversationHistories }).record({
-          historyKey: conversationId,
-          limit: historyLimit,
-          entry: {
-            sender: senderName,
-            body: rawBody,
-            timestamp: timestamp?.getTime(),
-            messageId: activity.id ?? undefined,
-          },
-        });
+        if (rawBody) {
+          enqueuePrimaryMessageSystemEvent();
+          createChannelHistoryWindow({ historyMap: conversationHistories }).record({
+            historyKey: conversationId,
+            limit: historyLimit,
+            entry: {
+              sender: senderName,
+              body: rawBody,
+              timestamp: timestamp?.getTime(),
+              messageId: activity.id ?? undefined,
+            },
+          });
+        }
        return;
      }
    }
-    enqueuePrimaryMessageSystemEvent();
-    let graphConversationId = translateMSTeamsDmConversationIdForGraph({
-      isDirectMessage,
-      conversationId,
-      aadObjectId: from.aadObjectId,
-      appId,
-    });
-
-    // For personal DMs the Bot Framework conversation ID (`a:...`) and the
-    // synthetic `19:{userId}_{appId}@unq.gbl.spaces` format produced by
-    // translateMSTeamsDmConversationIdForGraph are not always accepted by the
-    // Graph `/chats/{chatId}/messages` endpoint. Resolve the real Graph chat
-    // ID via the API (with conversation store caching) so the Graph media
-    // download fallback works when the direct Bot Framework download fails.
-    if (isDirectMessage && conversationId.startsWith("a:")) {
-      const cached = await conversationStore.get(conversationId);
-      if (cached?.graphChatId) {
-        graphConversationId = cached.graphChatId;
-      } else {
-        try {
-          const resolved = await resolveGraphChatId({
-            botFrameworkConversationId: conversationId,
-            userAadObjectId: from.aadObjectId ?? undefined,
-            tokenProvider,
-          });
-          if (resolved) {
-            graphConversationId = resolved;
-            conversationStore
-              .upsert(conversationId, { ...conversationRef, graphChatId: resolved })
-              .catch(() => {});
-          }
-        } catch {
-          log.debug?.("failed to resolve Graph chat ID for inbound media", { conversationId });
-        }
+    const preprocessingDeadline = createMSTeamsInboundDeadline();
+    let teamAadGroupId = activity.channelData?.team?.aadGroupId?.trim() || undefined;
+    const conversationTeamId = isChannel ? teamId : undefined;
+    let teamGroupIdPromise: Promise<string | undefined> | undefined;
+    const resolveChannelTeamGroupId = async (): Promise<string | undefined> => {
+      if (!conversationTeamId) {
+        return undefined;
      }
-    }
-
-    // The inbound Teams blockquote only carries a truncated `preview` snippet for
-    // quote replies. When we have the quoted message id, fetch the complete text
-    // via the app-only `GET /chats/{chatId}/messages/{id}` endpoint (allowed with
-    // Chat.Read.All). Restricted to 1:1 DMs on purpose: in a group chat an
-    // allowlisted sender could quote a non-allowlisted member, and the fetched
-    // full body would bypass the supplemental-quote visibility allowlist applied
-    // below. DMs have only two participants, so there is no third-party exposure.
-    // Group/channel quotes keep the (now-surfaced) truncated preview from fix 1.
-    // Any failure degrades to that preview, so message handling never breaks.
-    let quoteBodyFull: string | undefined;
-    if (quoteInfo?.id && isDirectMessage && graphConversationId.startsWith("19:")) {
-      try {
-        const graphToken = await tokenProvider.getAccessToken("https://graph.microsoft.com");
-        quoteBodyFull = await fetchChatMessageText(graphToken, graphConversationId, quoteInfo.id);
-      } catch (err) {
-        log.debug?.("failed to fetch full quoted message text", {
+      teamGroupIdPromise ??= resolveTeamGroupId({
+        conversationTeamId,
+        aadGroupId: teamAadGroupId,
+        getTeamDetails: context.getTeamDetails,
+        deadline: preprocessingDeadline,
+      }).catch((err: unknown) => {
+        log.debug?.("failed to resolve Teams AAD group ID", {
+          teamId: conversationTeamId,
          error: formatUnknownError(err),
        });
-      }
+        return undefined;
+      });
+      teamAadGroupId = await teamGroupIdPromise;
+      return teamAadGroupId;
+    };
+    let mediaList = [] as Awaited<ReturnType<typeof resolveMSTeamsInboundMedia>>;
+    try {
+      mediaList = await withMSTeamsRequestDeadline({
+        deadline: preprocessingDeadline,
+        label: "MS Teams inbound media",
+        work: () =>
+          resolveMSTeamsInboundMedia({
+            attachments,
+            htmlSummary: htmlSummary ?? undefined,
+            maxBytes: mediaMaxBytes,
+            tokenProvider,
+            allowHosts: msteamsCfg?.mediaAllowHosts,
+            authAllowHosts: msteamsCfg?.mediaAuthAllowHosts,
+            graphMediaFallback: msteamsCfg?.graphMediaFallback,
+            conversationType,
+            conversationId,
+            conversationMessageId: conversationMessageId ?? undefined,
+            teamAadGroupId,
+            resolveTeamAadGroupId: resolveChannelTeamGroupId,
+            serviceUrl: activity.serviceUrl,
+            activity: {
+              id: activity.id,
+              replyToId: activity.replyToId,
+              channelData: activity.channelData,
+            },
+            log,
+            deadline: preprocessingDeadline,
+            preserveFilenames: (cfg as { media?: { preserveFilenames?: boolean } }).media
+              ?.preserveFilenames,
+          }),
+      });
+    } catch (err) {
+      log.debug?.("failed to resolve inbound Teams media", {
+        error: formatUnknownError(err),
+      });
    }

-    const mediaList = await resolveMSTeamsInboundMedia({
-      attachments,
-      htmlSummary: htmlSummary ?? undefined,
-      maxBytes: mediaMaxBytes,
-      tokenProvider,
-      allowHosts: msteamsCfg?.mediaAllowHosts,
-      authAllowHosts: msteamsCfg?.mediaAuthAllowHosts,
-      conversationType,
-      conversationId: graphConversationId,
-      conversationMessageId: conversationMessageId ?? undefined,
-      serviceUrl: activity.serviceUrl,
-      activity: {
-        id: activity.id,
-        replyToId: activity.replyToId,
-        channelData: activity.channelData,
-      },
-      log,
-      preserveFilenames: (cfg as { media?: { preserveFilenames?: boolean } }).media
-        ?.preserveFilenames,
-    });
-
    const mediaPayload = buildMSTeamsMediaPayload(mediaList);
    const materializedMediaPlaceholder = resolveMSTeamsInboundAttachmentPresentation(
      mediaList.map((media) => ({ contentType: media.contentType, name: media.path })),
    ).placeholder;
    const agentBody = resolveMSTeamsInboundMediaBody({
-      body: rawBody,
+      body: rawBody || materializedMediaPlaceholder,
      mediaPlaceholder: attachmentPlaceholder,
      materializedMediaPlaceholder,
      expectedMediaCount: attachmentPresentation.expectedMediaCount,
      mediaCount: mediaList.length,
    });
+    if (!agentBody) {
+      log.debug?.("skipping empty message after Graph media recovery");
+      return;
+    }
+    enqueuePrimaryMessageSystemEvent();
+    teamAadGroupId = await resolveChannelTeamGroupId();
+
+    // Media is the primary payload, so optional quote enrichment only gets the
+    // remaining preprocessing budget. DMs alone may fetch the full quote: group
+    // and channel quotes retain their visibility-filtered preview.
+    let quoteBodyFull: string | undefined;
+    const quoteMessageId = quoteInfo?.id;
+    if (quoteMessageId && isDirectMessage && conversationId.startsWith("19:")) {
+      try {
+        const graphToken = await withMSTeamsRequestDeadline({
+          deadline: preprocessingDeadline,
+          label: "MS Teams quote token",
+          work: () => tokenProvider.getAccessToken("https://graph.microsoft.com"),
+        });
+        quoteBodyFull = await withMSTeamsRequestDeadline({
+          deadline: preprocessingDeadline,
+          label: "MS Teams quote lookup",
+          work: () =>
+            fetchChatMessageText(graphToken, conversationId, quoteMessageId, preprocessingDeadline),
+        });
+      } catch (err) {
+        log.debug?.("failed to fetch full quoted message text", {
+          error: formatUnknownError(err),
+        });
+      }
+    }

    // Fetch thread history when the message is a reply inside a Teams channel thread.
    // This is a best-effort enhancement; errors are logged and do not block the reply.
@@ -653,16 +678,46 @@ export function createMSTeamsMessageHandler(deps: MSTeamsMessageHandlerDeps) {
    // Parent fetches are cached (5 min LRU, 100 entries) and per-session deduped so
    // consecutive replies in the same thread do not re-inject identical context.
    let threadContext: string | undefined;
-    if (activity.replyToId && isChannel && teamId) {
+    const threadParentId = activity.replyToId;
+    const channelGroupId = teamAadGroupId;
+    if (threadParentId && isChannel && channelGroupId) {
      try {
-        const graphToken = await tokenProvider.getAccessToken("https://graph.microsoft.com");
-        const groupId = await resolveTeamGroupId(graphToken, teamId);
+        const graphToken = await withMSTeamsRequestDeadline({
+          deadline: preprocessingDeadline,
+          label: "MS Teams thread token",
+          work: () => tokenProvider.getAccessToken("https://graph.microsoft.com"),
+        });
        // Use allSettled so a failure in one fetch does not discard the other.
        // For example, reply-fetch 403 should not throw away a successful parent fetch.
-        const [parentResult, repliesResult] = await Promise.allSettled([
-          fetchParentMessageCached(graphToken, groupId, conversationId, activity.replyToId),
-          fetchThreadReplies(graphToken, groupId, conversationId, activity.replyToId),
-        ]);
+        const [parentResult, repliesResult] = await withMSTeamsRequestDeadline({
+          deadline: preprocessingDeadline,
+          label: "MS Teams thread history",
+          work: () =>
+            Promise.allSettled([
+              fetchParentMessageCached(
+                graphToken,
+                channelGroupId,
+                conversationId,
+                threadParentId,
+                (token, groupId, graphChannelId, messageId) =>
+                  fetchChannelMessage(
+                    token,
+                    groupId,
+                    graphChannelId,
+                    messageId,
+                    preprocessingDeadline,
+                  ),
+              ),
+              fetchThreadReplies(
+                graphToken,
+                channelGroupId,
+                conversationId,
+                threadParentId,
+                50,
+                preprocessingDeadline,
+              ),
+            ]),
+        });
        const parentMsg = parentResult.status === "fulfilled" ? parentResult.value : undefined;
        const replies = repliesResult.status === "fulfilled" ? repliesResult.value : [];
        if (parentResult.status === "rejected") {
@@ -696,13 +751,13 @@ export function createMSTeamsMessageHandler(deps: MSTeamsMessageHandlerDeps) {
        if (
          parentSummary &&
          visibleParentMessages.length > 0 &&
-          shouldInjectParentContext(route.sessionKey, activity.replyToId)
+          shouldInjectParentContext(route.sessionKey, threadParentId)
        ) {
          core.system.enqueueSystemEvent(formatParentContextEvent(parentSummary), {
            sessionKey: route.sessionKey,
-            contextKey: `msteams:thread-parent:${conversationId}:${activity.replyToId}`,
+            contextKey: `msteams:thread-parent:${conversationId}:${threadParentId}`,
          });
-          markParentContextInjected(route.sessionKey, activity.replyToId);
+          markParentContextInjected(route.sessionKey, threadParentId);
        }
        const allMessages = parentMsg ? [parentMsg, ...replies] : replies;
        quoteSenderId = parentMsg?.from?.user?.id ?? parentMsg?.from?.application?.id ?? undefined;
@@ -786,11 +841,12 @@ export function createMSTeamsMessageHandler(deps: MSTeamsMessageHandlerDeps) {
      : agentBody;

    // For Teams *channel* messages (not group chats / DMs), preserve the
-    // `teamId/channelId` pair on NativeChannelId so downstream action handlers
-    // can route through `/teams/{teamId}/channels/{channelId}` via Graph API.
+    // `aadGroupId/channelId` pair on NativeChannelId so downstream action handlers
+    // can route through `/teams/{aadGroupId}/channels/{channelId}` via Graph API.
    // The bare conversation id (`19:...@thread.tacv2`) is insufficient on its
    // own because channel Graph endpoints require the owning team id too.
-    const nativeChannelId = isChannel && teamId ? `${teamId}/${conversationId}` : undefined;
+    const nativeChannelId =
+      isChannel && teamAadGroupId ? `${teamAadGroupId}/${conversationId}` : undefined;
    const ctxPayload = buildChannelInboundEventContext({
      channel: "msteams",
      finalize: core.channel.reply.finalizeInboundContext,
--- a/extensions/msteams/src/monitor.lifecycle.test.ts
+++ b/extensions/msteams/src/monitor.lifecycle.test.ts
@@ -681,8 +681,20 @@ describe("monitorMSTeamsProvider lifecycle", () => {
      throw new Error("expected registered Teams handler");
    }
    const run = vi.spyOn(registeredHandler, "run");
-    await activityHandler({ activity });
+    const getTeamDetails = vi.fn(async () => ({ aadGroupId: "activity-aad-group" }));
+    await activityHandler({
+      activity,
+      api: { teams: { getById: getTeamDetails } },
+      send: vi.fn(async () => undefined),
+    });
    expect(run).toHaveBeenCalledWith(expect.objectContaining({ activity }));
+    const adaptedContext = run.mock.calls[0]?.[0] as
+      | { getTeamDetails?: (teamId: string) => Promise<{ aadGroupId?: string }> }
+      | undefined;
+    await expect(adaptedContext?.getTeamDetails?.("activity-team-id")).resolves.toEqual({
+      aadGroupId: "activity-aad-group",
+    });
+    expect(getTeamDetails).toHaveBeenCalledWith("activity-team-id");

    abort.abort();
    await task;
--- a/extensions/msteams/src/monitor.ts
+++ b/extensions/msteams/src/monitor.ts
@@ -752,7 +752,11 @@ function adaptSdkContext(ctx: unknown, app: MSTeamsApp): MSTeamsTurnContext {
    return ctx as MSTeamsTurnContext;
  }
  const conversationId = sdkCtx.activity?.conversation?.id ?? "";
-  const activityApi = sdkCtx.api ?? app.api;
+  const inboundApi = sdkCtx.api;
+  const activityApi = inboundApi ?? app.api;
+  const getTeamDetails = inboundApi
+    ? (teamId: string) => inboundApi.teams.getById(teamId)
+    : undefined;
  const conversationType = (sdkCtx.activity?.conversation?.conversationType ?? "").toLowerCase();
  const isThreadable = conversationType === "channel" || conversationType === "groupchat";
  // For Teams channels and group chats, use ctx.reply() so the SDK threads the
@@ -779,6 +783,7 @@ function adaptSdkContext(ctx: unknown, app: MSTeamsApp): MSTeamsTurnContext {
    deleteActivity: async (activityId: string) => {
      return activityApi.conversations.activities(conversationId).delete(activityId);
    },
+    getTeamDetails,
    stream: sdkCtx.stream,
  });
 }
--- a/extensions/msteams/src/request-timeout.test.ts
+++ b/extensions/msteams/src/request-timeout.test.ts
@@ -0,0 +1,23 @@
+// Msteams tests cover shared inbound request deadlines.
+import { describe, expect, it, vi } from "vitest";
+import { withMSTeamsRequestDeadline } from "./request-timeout.js";
+
+describe("withMSTeamsRequestDeadline", () => {
+  it("does not start work after the operation deadline has expired", async () => {
+    const work = vi.fn(async () => "late");
+
+    await expect(
+      withMSTeamsRequestDeadline({
+        deadline: {
+          label: "MS Teams inbound preprocessing",
+          timeoutMs: 10,
+          deadlineAtMs: Date.now() - 1,
+        },
+        label: "late Teams lookup",
+        work,
+      }),
+    ).rejects.toThrow(/timed out/i);
+
+    expect(work).not.toHaveBeenCalled();
+  });
+});
--- a/extensions/msteams/src/request-timeout.ts
+++ b/extensions/msteams/src/request-timeout.ts
@@ -0,0 +1,41 @@
+// Msteams plugin module implements request deadline behavior.
+import {
+  createProviderOperationDeadline,
+  resolveProviderOperationTimeoutMs,
+  type ProviderOperationDeadline,
+} from "openclaw/plugin-sdk/provider-http";
+import { withTimeout } from "openclaw/plugin-sdk/text-utility-runtime";
+
+export const MSTEAMS_REQUEST_TIMEOUT_MS = 30_000;
+
+// Cap optional enrichment before agent dispatch. The Teams SDK still holds the
+// webhook open for the agent turn, so this budget alone cannot prevent retries.
+export const MSTEAMS_INBOUND_PREPROCESS_TIMEOUT_MS = 10_000;
+
+export type MSTeamsRequestDeadline = ProviderOperationDeadline;
+
+export function createMSTeamsInboundDeadline(): MSTeamsRequestDeadline {
+  return createProviderOperationDeadline({
+    label: "MS Teams inbound preprocessing",
+    timeoutMs: MSTEAMS_INBOUND_PREPROCESS_TIMEOUT_MS,
+  });
+}
+
+export function resolveMSTeamsRequestTimeoutMs(deadline?: MSTeamsRequestDeadline): number {
+  return deadline
+    ? resolveProviderOperationTimeoutMs({
+        deadline,
+        defaultTimeoutMs: MSTEAMS_REQUEST_TIMEOUT_MS,
+      })
+    : MSTEAMS_REQUEST_TIMEOUT_MS;
+}
+
+/** Bound non-abortable SDK and credential work to the same operation deadline as fetches. */
+export async function withMSTeamsRequestDeadline<T>(params: {
+  deadline?: MSTeamsRequestDeadline;
+  label: string;
+  work: () => Promise<T>;
+}): Promise<T> {
+  const timeoutMs = resolveMSTeamsRequestTimeoutMs(params.deadline);
+  return await withTimeout(params.work(), timeoutMs, params.label);
+}
--- a/extensions/msteams/src/sdk-types.ts
+++ b/extensions/msteams/src/sdk-types.ts
@@ -27,7 +27,7 @@ type MSTeamsActivity = {
  locale?: string;
  serviceUrl?: string;
  channelData?: {
-    team?: { id?: string; name?: string };
+    team?: { id?: string; aadGroupId?: string; name?: string };
    channel?: { id?: string; name?: string };
    tenant?: { id?: string };
    [key: string]: unknown;
@@ -66,5 +66,7 @@ export type MSTeamsTurnContext = {
  sendActivities: (activities: Array<MSTeamsActivityParams>) => Promise<unknown>;
  updateActivity: (activity: MSTeamsActivityParams) => Promise<{ id?: string } | void>;
  deleteActivity: (activityId: string) => Promise<void>;
+  /** Resolve Bot Framework team metadata through this activity's regional service URL. */
+  getTeamDetails?: (teamId: string) => Promise<{ aadGroupId?: string }>;
  stream?: MSTeamsStreamer;
 };
--- a/extensions/msteams/src/sdk.test.ts
+++ b/extensions/msteams/src/sdk.test.ts
@@ -145,6 +145,21 @@ describe("createMSTeamsApp", () => {
    expect(headers?.["User-Agent"]).toMatch(/^teams\.ts\[apps\]\/\S+ OpenClaw\/\S+$/);
  });

+  it("bounds Teams SDK API requests", async () => {
+    const creds: MSTeamsCredentials = {
+      type: "secret",
+      appId: "test-app-id",
+      appPassword: "test-secret",
+      tenantId: "test-tenant",
+    };
+
+    const app = await createMSTeamsApp(creds);
+    const timeout = (app as unknown as { client?: { options?: { timeout?: number } } }).client
+      ?.options?.timeout;
+
+    expect(timeout).toBe(30_000);
+  });
+
  it("accepts custom messagingEndpoint", async () => {
    const creds: MSTeamsCredentials = {
      type: "secret",
--- a/extensions/msteams/src/sdk.ts
+++ b/extensions/msteams/src/sdk.ts
@@ -3,6 +3,7 @@ import * as fs from "node:fs";
 import { createLazyRuntimeModule } from "openclaw/plugin-sdk/lazy-runtime";
 import { normalizeBotFrameworkServiceUrl } from "./bot-framework-service-url.js";
 import type { MSTeamsCloudName } from "./cloud.js";
+import { MSTEAMS_REQUEST_TIMEOUT_MS } from "./request-timeout.js";
 import type { MSTeamsCredentials, MSTeamsFederatedCredentials } from "./token.js";
 import { buildOpenClawUserAgentFragment } from "./user-agent.js";

@@ -165,8 +166,12 @@ export type MSTeamsApp = {
  };
  api: {
    serviceUrl?: string;
+    teams: {
+      getById(teamId: string): Promise<{ aadGroupId?: string }>;
+    };
    conversations: {
      activities(conversationId: string): {
+        create(activity: unknown): Promise<{ id?: string }>;
        update(activityId: string, activity: unknown): Promise<unknown>;
        delete(activityId: string): Promise<unknown>;
      };
@@ -289,6 +294,7 @@ export async function createMSTeamsApp(
  const appOptions: Record<string, unknown> = {
    client: options?.httpClient ?? {
      headers: { "User-Agent": buildOpenClawUserAgentFragment() },
+      timeout: MSTEAMS_REQUEST_TIMEOUT_MS,
    },
    ...(options?.httpServerAdapter ? { httpServerAdapter: options.httpServerAdapter } : {}),
    ...(options?.messagingEndpoint ? { messagingEndpoint: options.messagingEndpoint } : {}),
--- a/extensions/msteams/src/send-context.test.ts
+++ b/extensions/msteams/src/send-context.test.ts
@@ -5,6 +5,7 @@ import type { StoredConversationReference } from "./conversation-store.js";
 import { resolveMSTeamsProactiveReplyStyle, resolveMSTeamsSendContext } from "./send-context.js";

 const sendContextMockState = vi.hoisted(() => {
+  const getAccessToken = vi.fn();
  const store = {
    upsert: vi.fn(),
    get: vi.fn(),
@@ -16,7 +17,8 @@ const sendContextMockState = vi.hoisted(() => {
  return {
    store,
    loadMSTeamsSdkWithAuth: vi.fn(async () => ({ app: { id: "mock-app" } })),
-    createMSTeamsTokenProvider: vi.fn(() => ({ getAccessToken: vi.fn() })),
+    createMSTeamsTokenProvider: vi.fn(() => ({ getAccessToken })),
+    getAccessToken,
    logWarn: vi.fn(),
  };
 });
@@ -58,6 +60,7 @@ beforeEach(() => {
  sendContextMockState.store.findByUserId.mockReset();
  sendContextMockState.loadMSTeamsSdkWithAuth.mockClear();
  sendContextMockState.createMSTeamsTokenProvider.mockClear();
+  sendContextMockState.getAccessToken.mockReset();
  sendContextMockState.logWarn.mockReset();
  vi.unstubAllEnvs();
 });
@@ -123,6 +126,32 @@ describe("resolveMSTeamsSendContext", () => {

    expect(sendContextMockState.store.remove).toHaveBeenCalledWith("19:channel@thread.tacv2");
  });
+
+  it("does not query Graph while resolving an opaque Bot Framework conversation", async () => {
+    sendContextMockState.store.get.mockResolvedValue(
+      channelRef({
+        serviceUrl: "https://smba.trafficmanager.net/amer/",
+        conversation: { id: "a:personal", conversationType: "personal" },
+      }),
+    );
+
+    await resolveMSTeamsSendContext({
+      cfg: {
+        channels: {
+          msteams: {
+            enabled: true,
+            appId: "app-id",
+            appPassword: "app-password",
+            tenantId: "tenant-id",
+            sharePointSiteId: "site-id",
+          },
+        },
+      } as OpenClawConfig,
+      to: "conversation:a:personal",
+    });
+
+    expect(sendContextMockState.getAccessToken).not.toHaveBeenCalled();
+  });
 });

 describe("resolveMSTeamsProactiveReplyStyle", () => {
--- a/extensions/msteams/src/send-context.ts
+++ b/extensions/msteams/src/send-context.ts
@@ -24,7 +24,6 @@ import type {
  StoredConversationReference,
 } from "./conversation-store.js";
 import { formatUnknownError } from "./errors.js";
-import { resolveGraphChatId } from "./graph-upload.js";
 import { resolveMSTeamsReplyPolicy, resolveMSTeamsRouteConfig } from "./policy.js";
 import { getMSTeamsRuntime } from "./runtime.js";
 import type { MSTeamsApp } from "./sdk.js";
@@ -45,19 +44,12 @@ export type MSTeamsProactiveContext = {
  replyStyle: MSTeamsReplyStyle;
  /** Teams SDK cloud/service endpoint used to validate proactive sends. */
  sdkCloudOptions: MSTeamsSdkCloudOptions;
-  /** Token provider for Graph API / OneDrive operations */
+  /** Token provider for Graph API / SharePoint operations */
  tokenProvider: MSTeamsAccessTokenProvider;
  /** SharePoint site ID for file uploads in group chats/channels */
  sharePointSiteId?: string;
  /** Resolved media max bytes from config (default: 100MB) */
  mediaMaxBytes?: number;
-  /**
-   * Graph API-native chat ID for this conversation.
-   * Bot Framework personal DM IDs (`a:1xxx` / `8:orgid:xxx`) cannot be used directly
-   * with Graph chat endpoints. This field holds the resolved `19:xxx` format ID.
-   * Null if resolution failed or not applicable.
-   */
-  graphChatId?: string | null;
 };

 export function resolveMSTeamsProactiveReplyStyle(params: {
@@ -220,7 +212,7 @@ export async function resolveMSTeamsSendContext(params: {
    configuredServiceUrl: sdkCloudOptions.serviceUrl,
  });

-  // Create token provider adapter for Graph API / OneDrive operations
+  // Create token provider adapter for Graph API / SharePoint operations
  const tokenProvider: MSTeamsAccessTokenProvider = createMSTeamsTokenProvider(app);

  // Determine conversation type from stored reference
@@ -252,45 +244,6 @@ export async function resolveMSTeamsSendContext(params: {
    resolveChannelLimitMb: ({ cfg }) => cfg.channels?.msteams?.mediaMaxMb,
  });

-  // Resolve Graph API-native chat ID if needed for SharePoint per-user sharing.
-  // Bot Framework personal DM conversation IDs (e.g. `a:1xxx` or `8:orgid:xxx`) cannot
-  // be used directly with Graph /chats/{chatId} endpoints — the Graph API requires the
-  // `19:xxx@thread.tacv2` or `19:xxx@unq.gbl.spaces` format.
-  // We check the cached value first, then resolve via Graph API and cache for future sends.
-  let graphChatId: string | null | undefined = safeRef.graphChatId ?? undefined;
-  if (graphChatId === undefined && sharePointSiteId) {
-    // Only resolve when SharePoint is configured (the only place chatId matters currently)
-    try {
-      const resolved = await resolveGraphChatId({
-        botFrameworkConversationId: conversationId,
-        userAadObjectId: safeRef.user?.aadObjectId,
-        tokenProvider,
-      });
-      graphChatId = resolved;
-
-      // Cache in the conversation store so subsequent sends skip the Graph lookup.
-      // NOTE: We intentionally do NOT cache null results. Transient Graph API failures
-      // (network, 401, rate limit) should be retried on subsequent sends rather than
-      // permanently blocking file uploads for this conversation.
-      if (resolved) {
-        await store.upsert(conversationId, { ...safeRef, graphChatId: resolved });
-      } else {
-        log.warn?.("could not resolve Graph chat ID; file uploads may fail for this conversation", {
-          conversationId,
-        });
-      }
-    } catch (err) {
-      log.warn?.(
-        "failed to resolve Graph chat ID; file uploads may fall back to Bot Framework ID",
-        {
-          conversationId,
-          error: formatUnknownError(err),
-        },
-      );
-      graphChatId = null;
-    }
-  }
-
  return {
    appId: creds.appId,
    conversationId,
@@ -303,6 +256,5 @@ export async function resolveMSTeamsSendContext(params: {
    tokenProvider,
    sharePointSiteId,
    mediaMaxBytes,
-    graphChatId,
  };
 }
--- a/extensions/msteams/src/send.test.ts
+++ b/extensions/msteams/src/send.test.ts
@@ -83,11 +83,14 @@ vi.mock("./runtime.js", () => ({
  }),
 }));

-vi.mock("./graph-upload.js", () => ({
-  uploadAndShareSharePoint: mockState.uploadAndShareSharePoint,
-  getDriveItemProperties: mockState.getDriveItemProperties,
-  uploadAndShareOneDrive: vi.fn(),
-}));
+vi.mock("./graph-upload.js", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("./graph-upload.js")>();
+  return {
+    ...actual,
+    uploadAndShareSharePoint: mockState.uploadAndShareSharePoint,
+    getDriveItemProperties: mockState.getDriveItemProperties,
+  };
+});

 vi.mock("./graph-chat.js", () => ({
  buildTeamsFileInfoCard: mockState.buildTeamsFileInfoCard,
@@ -151,16 +154,11 @@ function mockProactiveSendContextFailure(error: string) {
  });
 }

-function createSharePointSendContext(params: {
-  conversationId: string;
-  graphChatId: string | null;
-  siteId: string;
-}) {
+function createSharePointSendContext(params: { conversationId: string; siteId: string }) {
  return {
    app: createMockApp(),
    appId: "app-id",
    conversationId: params.conversationId,
-    graphChatId: params.graphChatId,
    ref: {},
    log: { debug: vi.fn(), info: vi.fn(), warn: vi.fn(), error: vi.fn() },
    conversationType: "groupChat" as const,
@@ -382,46 +380,12 @@ describe("sendMessageMSTeams", () => {
    expect(firstObjectArg(mockState.sendMSTeamsMessages).replyStyle).toBe("top-level");
  });

-  it("uses graphChatId instead of conversationId when uploading to SharePoint", async () => {
-    // Simulates a group chat where Bot Framework conversationId is valid but we have
-    // a resolved Graph chat ID cached from a prior send.
-    const graphChatId = "19:graph-native-chat-id@thread.tacv2";
-    const botFrameworkConversationId = "19:bot-framework-id@thread.tacv2";
+  it("uses the Graph-native group conversation ID for SharePoint sharing", async () => {
+    const graphConversationId = "19:group-id@thread.v2";

    mockState.resolveMSTeamsSendContext.mockResolvedValue(
      createSharePointSendContext({
-        conversationId: botFrameworkConversationId,
-        graphChatId,
-        siteId: "site-123",
-      }),
-    );
-    mockSharePointPdfUpload({
-      bufferSize: 100,
-      fileName: "doc.pdf",
-      itemId: "item-1",
-      uniqueId: "{GUID-123}",
-    });
-
-    await sendMessageMSTeams({
-      cfg: {} as OpenClawConfig,
-      to: "conversation:19:bot-framework-id@thread.tacv2",
-      text: "here is a file",
-      mediaUrl: "https://example.com/doc.pdf",
-    });
-
-    // The Graph-native chatId must be passed to SharePoint upload, not the Bot Framework ID
-    const uploadPayload = firstObjectArg(mockState.uploadAndShareSharePoint);
-    expect(uploadPayload.chatId).toBe(graphChatId);
-    expect(uploadPayload.siteId).toBe("site-123");
-  });
-
-  it("falls back to conversationId when graphChatId is not available", async () => {
-    const botFrameworkConversationId = "19:fallback-id@thread.tacv2";
-
-    mockState.resolveMSTeamsSendContext.mockResolvedValue(
-      createSharePointSendContext({
-        conversationId: botFrameworkConversationId,
-        graphChatId: null,
+        conversationId: graphConversationId,
        siteId: "site-456",
      }),
    );
@@ -434,16 +398,41 @@ describe("sendMessageMSTeams", () => {

    await sendMessageMSTeams({
      cfg: {} as OpenClawConfig,
-      to: "conversation:19:fallback-id@thread.tacv2",
+      to: `conversation:${graphConversationId}`,
      text: "report",
      mediaUrl: "https://example.com/report.pdf",
    });

-    // Falls back to conversationId when graphChatId is null
    const uploadPayload = firstObjectArg(mockState.uploadAndShareSharePoint);
-    expect(uploadPayload.chatId).toBe(botFrameworkConversationId);
+    expect(uploadPayload.chatId).toBe(graphConversationId);
    expect(uploadPayload.siteId).toBe("site-456");
  });
+
+  it("fails clearly when a group file has no SharePoint site", async () => {
+    mockState.resolveMSTeamsSendContext.mockResolvedValue({
+      ...createSharePointSendContext({
+        conversationId: "19:group-id@thread.v2",
+        siteId: "unused",
+      }),
+      sharePointSiteId: undefined,
+    });
+    mockState.loadOutboundMediaFromUrl.mockResolvedValueOnce({
+      buffer: Buffer.from("pdf"),
+      contentType: "application/pdf",
+      fileName: "report.pdf",
+      kind: "file",
+    });
+
+    await expect(
+      sendMessageMSTeams({
+        cfg: {} as OpenClawConfig,
+        to: "conversation:19:group-id@thread.v2",
+        text: "report",
+        mediaUrl: "https://example.com/report.pdf",
+      }),
+    ).rejects.toThrow("channels.msteams.sharePointSiteId is required");
+    expect(mockState.uploadAndShareSharePoint).not.toHaveBeenCalled();
+  });
 });

 describe("MSTeams continueConversation failure handling", () => {
--- a/extensions/msteams/src/send.ts
+++ b/extensions/msteams/src/send.ts
@@ -16,7 +16,7 @@ import { prepareFileConsentActivityFs, requiresFileConsent } from "./file-consen
 import { buildTeamsFileInfoCard } from "./graph-chat.js";
 import {
  getDriveItemProperties,
-  uploadAndShareOneDrive,
+  requireMSTeamsSharePointSiteId,
  uploadAndShareSharePoint,
 } from "./graph-upload.js";
 import { extractFilename, extractMessageId } from "./media-helpers.js";
@@ -59,7 +59,7 @@ const FILE_CONSENT_THRESHOLD_BYTES = 4 * 1024 * 1024; // 4MB

 /**
 * MSTeams-specific media size limit (100MB).
- * Higher than the default because OneDrive upload handles large files well.
+ * Higher than the default to support Teams file-consent and SharePoint uploads.
 */
 const MSTEAMS_MAX_MEDIA_BYTES = 100 * 1024 * 1024;

@@ -144,7 +144,7 @@ type SendMSTeamsCardResult = {
 *
 * File handling by conversation type:
 * - Personal (1:1) chats: small images (<4MB) use base64, large files and non-images use FileConsentCard
- * - Group chats / channels: files are uploaded to OneDrive and shared via link
+ * - Group chats / channels: files require configured SharePoint storage
 */
 export async function sendMessageMSTeams(
  params: SendMSTeamsMessageParams,
@@ -251,101 +251,52 @@ export async function sendMessageMSTeams(
    }

    if (isImage && !sharePointSiteId) {
-      // Group chat/channel without SharePoint: send image inline (avoids OneDrive failures)
+      // Group chat/channel images can be sent inline without SharePoint storage.
      const base64 = media.buffer.toString("base64");
      const finalMediaUrl = `data:${media.contentType};base64,${base64}`;
      return sendTextWithMedia(ctx, messageText, finalMediaUrl);
    }

-    // Group chat or channel: upload to SharePoint (if siteId configured) or OneDrive
+    // Group chat or channel: upload to configured SharePoint storage.
    try {
-      if (sharePointSiteId) {
-        // Use SharePoint upload + Graph API for native file card
-        log.debug?.("uploading to SharePoint for native file card", {
-          fileName,
-          conversationType,
-          siteId: sharePointSiteId,
-        });
-
-        const uploaded = await uploadAndShareSharePoint({
-          buffer: media.buffer,
-          filename: fileName,
-          contentType: media.contentType,
-          tokenProvider,
-          siteId: sharePointSiteId,
-          // Use the Graph-native chat ID (19:xxx format) — the Bot Framework conversationId
-          // for personal DMs uses a different format that Graph API rejects.
-          chatId: ctx.graphChatId ?? conversationId,
-          usePerUserSharing: conversationType === "groupChat",
-        });
-
-        log.debug?.("SharePoint upload complete", {
-          itemId: uploaded.itemId,
-          shareUrl: uploaded.shareUrl,
-        });
-
-        // Get driveItem properties needed for native file card
-        const driveItem = await getDriveItemProperties({
-          siteId: sharePointSiteId,
-          itemId: uploaded.itemId,
-          tokenProvider,
-        });
-
-        log.debug?.("driveItem properties retrieved", {
-          eTag: driveItem.eTag,
-          webDavUrl: driveItem.webDavUrl,
-        });
-
-        // Build native Teams file card attachment and send via Bot Framework
-        const fileCardAttachment = buildTeamsFileInfoCard(driveItem);
-        const activity = {
-          type: "message",
-          text: messageText || undefined,
-          attachments: [fileCardAttachment],
-        };
-        const messageId = await sendProactiveActivityRaw({
-          app,
-          ref,
-          activity,
-          serviceUrlBoundary: sdkCloudOptions,
-        });
-
-        log.info("sent native file card", {
-          conversationId,
-          messageId,
-          fileName: driveItem.name,
-        });
-
-        return createMSTeamsSendResult({
-          messageId,
-          conversationId,
-          kind: "media",
-        });
-      }
-
-      // Fallback: no SharePoint site configured, use OneDrive with markdown link
-      log.debug?.("uploading to OneDrive (no SharePoint site configured)", {
+      const siteId = requireMSTeamsSharePointSiteId(sharePointSiteId);
+      log.debug?.("uploading to SharePoint for native file card", {
        fileName,
        conversationType,
+        siteId,
      });

-      const uploaded = await uploadAndShareOneDrive({
+      const uploaded = await uploadAndShareSharePoint({
        buffer: media.buffer,
        filename: fileName,
        contentType: media.contentType,
        tokenProvider,
+        siteId,
+        chatId: conversationId,
+        usePerUserSharing: conversationType === "groupChat",
      });

-      log.debug?.("OneDrive upload complete", {
+      log.debug?.("SharePoint upload complete", {
        itemId: uploaded.itemId,
        shareUrl: uploaded.shareUrl,
      });

-      // Send message with file link (Bot Framework doesn't support "reference" attachment type for sending)
-      const fileLink = `📎 [${uploaded.name}](${uploaded.shareUrl})`;
+      const driveItem = await getDriveItemProperties({
+        siteId,
+        itemId: uploaded.itemId,
+        tokenProvider,
+      });
+
+      log.debug?.("driveItem properties retrieved", {
+        eTag: driveItem.eTag,
+        webDavUrl: driveItem.webDavUrl,
+      });
+
+      const fileCardAttachment = buildTeamsFileInfoCard(driveItem);
      const activity = {
        type: "message",
-        text: messageText ? `${messageText}\n\n${fileLink}` : fileLink,
+        text: messageText || undefined,
+        attachments: [fileCardAttachment],
      };
      const messageId = await sendProactiveActivityRaw({
        app,
@@ -354,10 +305,10 @@ export async function sendMessageMSTeams(
        serviceUrlBoundary: sdkCloudOptions,
      });

-      log.info("sent message with OneDrive file link", {
+      log.info("sent native file card", {
        conversationId,
        messageId,
-        shareUrl: uploaded.shareUrl,
+        fileName: driveItem.name,
      });

      return createMSTeamsSendResult({
--- a/extensions/msteams/src/team-identity.test.ts
+++ b/extensions/msteams/src/team-identity.test.ts
@@ -0,0 +1,101 @@
+// Msteams tests cover canonical team identity resolution.
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import { _teamGroupIdCacheForTest, resolveTeamGroupId } from "./team-identity.js";
+
+describe("resolveTeamGroupId", () => {
+  const getTeamDetails = vi.fn<(teamId: string) => Promise<{ aadGroupId?: string }>>();
+
+  beforeEach(() => {
+    getTeamDetails.mockReset();
+    getTeamDetails.mockResolvedValue({ aadGroupId: "group-guid" });
+    _teamGroupIdCacheForTest.clear();
+  });
+
+  it("uses and caches the activity AAD group ID without a Teams API lookup", async () => {
+    const result = await resolveTeamGroupId({
+      conversationTeamId: "team-123",
+      aadGroupId: " group-guid-1 ",
+      getTeamDetails,
+    });
+    const cached = await resolveTeamGroupId({
+      conversationTeamId: "team-123",
+      getTeamDetails,
+    });
+
+    expect(result).toBe("group-guid-1");
+    expect(cached).toBe("group-guid-1");
+    expect(getTeamDetails).not.toHaveBeenCalled();
+  });
+
+  it("resolves a missing AAD group ID through the Teams API", async () => {
+    getTeamDetails.mockResolvedValueOnce({ aadGroupId: " group-guid-2 " });
+
+    const result = await resolveTeamGroupId({
+      conversationTeamId: "19:team@thread.skype",
+      getTeamDetails,
+    });
+
+    expect(result).toBe("group-guid-2");
+    expect(getTeamDetails).toHaveBeenCalledWith("19:team@thread.skype");
+  });
+
+  it("returns cached value without calling the Teams API again", async () => {
+    const params = { conversationTeamId: "team-456", getTeamDetails };
+
+    await resolveTeamGroupId(params);
+    await resolveTeamGroupId(params);
+
+    expect(getTeamDetails).toHaveBeenCalledTimes(1);
+  });
+
+  it("bounds a stalled Teams API identity lookup", async () => {
+    vi.useFakeTimers();
+    try {
+      getTeamDetails.mockImplementationOnce(() => new Promise(() => {}));
+      const result = resolveTeamGroupId({
+        conversationTeamId: "team-stalled",
+        getTeamDetails,
+        deadline: {
+          label: "MS Teams inbound preprocessing",
+          timeoutMs: 50,
+          deadlineAtMs: Date.now() + 50,
+        },
+      });
+      const assertion = expect(result).rejects.toThrow(/timed out/i);
+
+      await vi.advanceTimersByTimeAsync(51);
+      await assertion;
+    } finally {
+      vi.useRealTimers();
+    }
+  });
+
+  it("returns undefined instead of sending a raw Bot Framework team ID to Graph", async () => {
+    getTeamDetails.mockResolvedValueOnce({});
+
+    await expect(
+      resolveTeamGroupId({
+        conversationTeamId: "19:team@thread.skype",
+        getTeamDetails,
+      }),
+    ).resolves.toBeUndefined();
+  });
+
+  it("returns undefined when no per-activity Teams resolver is available", async () => {
+    await expect(
+      resolveTeamGroupId({ conversationTeamId: "19:team@thread.skype" }),
+    ).resolves.toBeUndefined();
+  });
+
+  it("caps cache at 500 entries and evicts the oldest team", async () => {
+    for (let i = 0; i < 500; i++) {
+      await resolveTeamGroupId({ conversationTeamId: `team-${i}`, getTeamDetails });
+    }
+
+    await resolveTeamGroupId({ conversationTeamId: "team-500", getTeamDetails });
+
+    expect(_teamGroupIdCacheForTest.size).toBe(500);
+    expect(_teamGroupIdCacheForTest.has("team-0")).toBe(false);
+    expect(_teamGroupIdCacheForTest.has("team-500")).toBe(true);
+  });
+});
--- a/extensions/msteams/src/team-identity.ts
+++ b/extensions/msteams/src/team-identity.ts
@@ -0,0 +1,51 @@
+// Msteams plugin module implements canonical team identity resolution.
+import { pruneMapToMaxSize } from "openclaw/plugin-sdk/collection-runtime";
+import { type MSTeamsRequestDeadline, withMSTeamsRequestDeadline } from "./request-timeout.js";
+
+// Team AAD group IDs are stable metadata; a bounded process cache avoids a
+// regional Bot Connector lookup on every turn and refreshes on restart.
+const teamGroupIdCache = new Map<string, string>();
+const TEAM_GROUP_ID_CACHE_MAX_ENTRIES = 500;
+
+function cacheTeamGroupId(conversationTeamId: string, groupId: string): void {
+  teamGroupIdCache.set(conversationTeamId, groupId);
+  pruneMapToMaxSize(teamGroupIdCache, TEAM_GROUP_ID_CACHE_MAX_ENTRIES);
+}
+
+/** Resolve the Graph team GUID without ever treating a Bot Framework team ID as equivalent. */
+export async function resolveTeamGroupId(params: {
+  conversationTeamId: string;
+  aadGroupId?: string;
+  getTeamDetails?: (teamId: string) => Promise<{ aadGroupId?: string }>;
+  deadline?: MSTeamsRequestDeadline;
+}): Promise<string | undefined> {
+  const activityGroupId = params.aadGroupId?.trim();
+  if (activityGroupId) {
+    cacheTeamGroupId(params.conversationTeamId, activityGroupId);
+    return activityGroupId;
+  }
+
+  const cached = teamGroupIdCache.get(params.conversationTeamId);
+  if (cached) {
+    return cached;
+  }
+
+  const getTeamDetails = params.getTeamDetails;
+  if (!getTeamDetails) {
+    return undefined;
+  }
+  const team = await withMSTeamsRequestDeadline({
+    deadline: params.deadline,
+    label: "MS Teams team details",
+    work: () => getTeamDetails(params.conversationTeamId),
+  });
+  const groupId = team.aadGroupId?.trim();
+  if (!groupId) {
+    return undefined;
+  }
+  cacheTeamGroupId(params.conversationTeamId, groupId);
+  return groupId;
+}
+
+// Exported for testing only.
+export { teamGroupIdCache as _teamGroupIdCacheForTest };
--- a/src/config/bundled-channel-config-metadata.generated.ts
+++ b/src/config/bundled-channel-config-metadata.generated.ts
--- a/src/config/types.msteams.ts
+++ b/src/config/types.msteams.ts
@@ -161,6 +161,12 @@ export type MSTeamsConfig = {
   * Use specific hosts only; avoid multi-tenant suffixes.
   */
  mediaAuthAllowHosts?: Array<string>;
+  /**
+   * Query Graph for channel/group media when Bot Framework HTML omits file markers.
+   * Requires the documented Graph permissions and adds one message lookup per
+   * otherwise unresolved HTML activity. Default: false.
+   */
+  graphMediaFallback?: boolean;
  /** Default: require @mention to respond in channels/groups. */
  requireMention?: boolean;
  /** Max group/channel messages to keep as history context (0 disables). */
@@ -173,7 +179,7 @@ export type MSTeamsConfig = {
  replyStyle?: MSTeamsReplyStyle;
  /** Per-team config. Key is team ID (from the /team/ URL path segment). */
  teams?: Record<string, MSTeamsTeamConfig>;
-  /** Max media size in MB (default: 100MB for OneDrive upload support). */
+  /** Max inbound and outbound media size in MB (default: 100MB). */
  mediaMaxMb?: number;
  /** SharePoint site ID for file uploads in group chats/channels (e.g., "contoso.sharepoint.com,guid1,guid2"). */
  sharePointSiteId?: string;
--- a/src/config/zod-schema.providers-core.ts
+++ b/src/config/zod-schema.providers-core.ts
@@ -1663,13 +1663,14 @@ export const MSTeamsConfigSchema = z
    blockStreamingCoalesce: BlockStreamingCoalesceSchema.optional(),
    mediaAllowHosts: z.array(z.string()).optional(),
    mediaAuthAllowHosts: z.array(z.string()).optional(),
+    graphMediaFallback: z.boolean().optional(),
    requireMention: z.boolean().optional(),
    historyLimit: z.number().int().min(0).optional(),
    dmHistoryLimit: z.number().int().min(0).optional(),
    dms: z.record(z.string(), DmConfigSchema.optional()).optional(),
    replyStyle: MSTeamsReplyStyleSchema.optional(),
    teams: z.record(z.string(), MSTeamsTeamSchema.optional()).optional(),
-    /** Max media size in MB (default: 100MB for OneDrive upload support). */
+    /** Max inbound and outbound media size in MB (default: 100MB). */
    mediaMaxMb: z.number().positive().optional(),
    /** SharePoint site ID for file uploads in group chats/channels (e.g., "contoso.sharepoint.com,guid1,guid2") */
    sharePointSiteId: z.string().optional(),