diff --git a/adapters/wechat/__tests__/protocol.test.ts b/adapters/wechat/__tests__/protocol.test.ts
index ab377de1..602fe779 100644
--- a/adapters/wechat/__tests__/protocol.test.ts
+++ b/adapters/wechat/__tests__/protocol.test.ts
@@ -1,7 +1,13 @@
-import { describe, expect, it } from 'bun:test'
-import { buildClientVersion, extractWechatText } from '../protocol.js'
+import { afterEach, describe, expect, it } from 'bun:test'
+import { buildClientVersion, extractWechatText, sendWechatText, sendWechatTyping } from '../protocol.js'
 import { collectWechatMediaCandidates } from '../media.js'
 
+const originalFetch = globalThis.fetch
+
+afterEach(() => {
+  globalThis.fetch = originalFetch
+})
+
 describe('WeChat protocol helpers', () => {
   it('encodes iLink client versions like the OpenClaw Weixin plugin', () => {
     expect(buildClientVersion('2.1.7')).toBe((2 << 16) | (1 << 8) | 7)
@@ -71,4 +77,47 @@ describe('WeChat protocol helpers', () => {
       },
     ])
   })
+
+  it('throws when sendmessage returns a non-zero WeChat ret code', async () => {
+    globalThis.fetch = (async () => new Response(JSON.stringify({ ret: 40001, errmsg: 'bad context_token' }), { status: 200 })) as unknown as typeof fetch
+
+    await expect(sendWechatText({
+      baseUrl: 'https://api.example.com',
+      token: 'token',
+      to: 'user',
+      text: 'hello',
+      contextToken: 'stale-context',
+    })).rejects.toThrow('wechatSendMessage returned 40001: bad context_token')
+  })
+
+  it('allows successful sendmessage responses', async () => {
+    const requests: string[] = []
+    globalThis.fetch = (async (_url: Parameters<typeof fetch>[0], init?: Parameters<typeof fetch>[1]) => {
+      requests.push(String(init?.body ?? ''))
+      return new Response(JSON.stringify({ ret: 0 }), { status: 200 })
+    }) as unknown as typeof fetch
+
+    await sendWechatText({
+      baseUrl: 'https://api.example.com',
+      token: 'token',
+      to: 'user',
+      text: 'hello',
+      contextToken: 'ctx',
+    })
+
+    expect(requests).toHaveLength(1)
+    expect(JSON.parse(requests[0]!).msg.context_token).toBe('ctx')
+  })
+
+  it('throws when sendtyping returns a non-zero WeChat ret code', async () => {
+    globalThis.fetch = (async () => new Response(JSON.stringify({ ret: 42001, errmsg: 'typing ticket expired' }), { status: 200 })) as unknown as typeof fetch
+
+    await expect(sendWechatTyping({
+      baseUrl: 'https://api.example.com',
+      token: 'token',
+      ilinkUserId: 'user',
+      typingTicket: 'ticket',
+      status: 'typing',
+    })).rejects.toThrow('wechatSendTyping returned 42001: typing ticket expired')
+  })
 })
diff --git a/adapters/wechat/__tests__/typing.test.ts b/adapters/wechat/__tests__/typing.test.ts
new file mode 100644
index 00000000..45cca8c6
--- /dev/null
+++ b/adapters/wechat/__tests__/typing.test.ts
@@ -0,0 +1,38 @@
+import { describe, expect, it } from 'bun:test'
+import { WechatTypingController } from '../typing.js'
+
+describe('WechatTypingController', () => {
+  it('sends typing immediately and keeps it alive until stopped', async () => {
+    const calls: Array<[string, string]> = []
+    const controller = new WechatTypingController(async (chatId, status) => {
+      calls.push([chatId, status])
+    }, 10)
+
+    controller.start('chat-1')
+    await Bun.sleep(25)
+    controller.stop('chat-1')
+    controller.destroy()
+
+    expect(calls[0]).toEqual(['chat-1', 'typing'])
+    expect(calls.filter(([, status]) => status === 'typing').length).toBeGreaterThanOrEqual(2)
+    expect(calls.at(-1)).toEqual(['chat-1', 'cancel'])
+  })
+
+  it('does not create duplicate keepalive timers for the same chat', async () => {
+    const calls: Array<[string, string]> = []
+    const controller = new WechatTypingController(async (chatId, status) => {
+      calls.push([chatId, status])
+    }, 10)
+
+    controller.start('chat-1')
+    controller.start('chat-1')
+    await Bun.sleep(25)
+    controller.stop('chat-1')
+    controller.destroy()
+
+    const typingCalls = calls.filter(([, status]) => status === 'typing')
+    expect(typingCalls.length).toBeGreaterThanOrEqual(3)
+    expect(typingCalls.length).toBeLessThanOrEqual(5)
+    expect(calls.at(-1)).toEqual(['chat-1', 'cancel'])
+  })
+})
diff --git a/adapters/wechat/index.ts b/adapters/wechat/index.ts
index b1a577fb..273e71e3 100644
--- a/adapters/wechat/index.ts
+++ b/adapters/wechat/index.ts
@@ -20,6 +20,7 @@ import { AdapterHttpClient } from '../common/http-client.js'
 import { isAllowedUser, tryPair } from '../common/pairing.js'
 import { AttachmentStore } from '../common/attachment/attachment-store.js'
 import { checkAttachmentLimit } from '../common/attachment/attachment-limits.js'
+import { WechatTypingController } from './typing.js'
 import {
   extractWechatText,
   getWechatConfig,
@@ -56,6 +57,7 @@ const blockBuffers = new Map<string, MessageBuffer>()
 const contextTokens = new Map<string, string>()
 const typingTickets = new Map<string, string>()
 const pendingPermissions = new Map<string, Set<string>>()
+const typingController = new WechatTypingController(sendTypingIndicator)
 
 let getUpdatesBuf = ''
 let stopped = false
@@ -84,13 +86,24 @@ async function sendText(chatId: string, text: string): Promise<void> {
   const chunks = splitMessage(text, WECHAT_TEXT_LIMIT)
   const contextToken = contextTokens.get(chatId)
   for (const chunk of chunks) {
-    await sendWechatText({
-      baseUrl,
-      token: botToken,
-      to: chatId,
-      text: chunk,
-      contextToken,
-    })
+    try {
+      await sendWechatText({
+        baseUrl,
+        token: botToken,
+        to: chatId,
+        text: chunk,
+        contextToken,
+      })
+    } catch (err) {
+      if (!contextToken) throw err
+      console.warn('[WeChat] sendText with context token failed, retrying without context:', err instanceof Error ? err.message : err)
+      await sendWechatText({
+        baseUrl,
+        token: botToken,
+        to: chatId,
+        text: chunk,
+      })
+    }
   }
   console.log(`[WeChat] Sent ${chunks.length} message chunk(s) to ${redactChatId(chatId)}`)
 }
@@ -112,17 +125,7 @@ function getBlockBuffer(chatId: string): MessageBuffer {
 
 async function sendTypingIndicator(chatId: string, status: 'typing' | 'cancel'): Promise<void> {
   try {
-    let typingTicket = typingTickets.get(chatId)
-    if (!typingTicket && status === 'typing') {
-      const configResp = await getWechatConfig({
-        baseUrl,
-        token: botToken,
-        ilinkUserId: chatId,
-        contextToken: contextTokens.get(chatId),
-      })
-      typingTicket = configResp.typing_ticket
-      if (typingTicket) typingTickets.set(chatId, typingTicket)
-    }
+    const typingTicket = await getTypingTicket(chatId, status)
     if (!typingTicket) return
     await sendWechatTyping({
       baseUrl,
@@ -132,20 +135,73 @@ async function sendTypingIndicator(chatId: string, status: 'typing' | 'cancel'):
       status,
     })
   } catch (err) {
+    typingTickets.delete(chatId)
+    if (status === 'typing') {
+      try {
+        const typingTicket = await getTypingTicket(chatId, status)
+        if (!typingTicket) return
+        await sendWechatTyping({
+          baseUrl,
+          token: botToken,
+          ilinkUserId: chatId,
+          typingTicket,
+          status,
+        })
+        return
+      } catch {
+        // Fall through to the warning below with the original error.
+      }
+    }
     console.warn('[WeChat] sendTyping failed:', err instanceof Error ? err.message : err)
   }
 }
 
+async function getTypingTicket(chatId: string, status: 'typing' | 'cancel'): Promise<string | null> {
+  let typingTicket = typingTickets.get(chatId)
+  if (!typingTicket && status === 'typing') {
+    const configResp = await getWechatConfig({
+      baseUrl,
+      token: botToken,
+      ilinkUserId: chatId,
+      contextToken: contextTokens.get(chatId),
+    })
+    if (typeof configResp.ret === 'number' && configResp.ret !== 0) {
+      throw new Error(`getconfig returned ${configResp.ret}: ${configResp.errmsg ?? ''}`)
+    }
+    typingTicket = configResp.typing_ticket
+    if (typingTicket) typingTickets.set(chatId, typingTicket)
+  }
+  return typingTicket || null
+}
+
 function clearTransientChatState(chatId: string): void {
   blockBuffers.get(chatId)?.reset()
   blockBuffers.delete(chatId)
   pendingPermissions.delete(chatId)
+  typingController.stop(chatId)
   const runtime = getRuntimeState(chatId)
   runtime.state = 'idle'
   runtime.verb = undefined
   runtime.pendingPermissionCount = 0
 }
 
+function enqueueWechat(chatId: string, task: () => Promise<void>): void {
+  enqueue(chatId, async () => {
+    try {
+      await task()
+    } catch (err) {
+      typingController.stop(chatId)
+      const message = err instanceof Error ? err.message : String(err)
+      console.error(`[WeChat] Failed to handle message for ${redactChatId(chatId)}:`, err)
+      try {
+        await sendText(chatId, `处理消息失败：${message}`)
+      } catch (sendErr) {
+        console.error(`[WeChat] Failed to report message handling error for ${redactChatId(chatId)}:`, sendErr)
+      }
+    }
+  })
+}
+
 async function ensureExistingSession(chatId: string): Promise<{ sessionId: string; workDir: string } | null> {
   const stored = sessionStore.get(chatId)
   if (!stored) return null
@@ -176,6 +232,29 @@ async function buildStatusText(chatId: string): Promise<string> {
     // Keep IM status best-effort.
   }
 
+  let taskCounts:
+    | {
+        total: number
+        pending: number
+        inProgress: number
+        completed: number
+      }
+    | undefined
+
+  try {
+    const tasks = await httpClient.getTasksForSession(stored.sessionId)
+    if (tasks.length > 0) {
+      taskCounts = {
+        total: tasks.length,
+        pending: tasks.filter((task) => task.status === 'pending').length,
+        inProgress: tasks.filter((task) => task.status === 'in_progress').length,
+        completed: tasks.filter((task) => task.status === 'completed').length,
+      }
+    }
+  } catch {
+    // Keep IM status best-effort.
+  }
+
   return formatImStatus({
     sessionId: stored.sessionId,
     projectName,
@@ -184,6 +263,7 @@ async function buildStatusText(chatId: string): Promise<string> {
     state: runtime.state,
     verb: runtime.verb,
     pendingPermissionCount: runtime.pendingPermissionCount,
+    taskCounts,
   })
 }
 
@@ -287,9 +367,18 @@ async function handleServerMessage(chatId: string, msg: ServerMessage): Promise<
       runtime.state = msg.state
       runtime.verb = typeof msg.verb === 'string' ? msg.verb : undefined
       if (msg.state === 'thinking' || msg.state === 'tool_executing') {
-        void sendTypingIndicator(chatId, 'typing')
+        typingController.start(chatId)
       } else if (msg.state === 'idle') {
-        void sendTypingIndicator(chatId, 'cancel')
+        typingController.stop(chatId)
+      }
+      break
+    case 'content_start':
+      if (msg.blockType === 'text') {
+        runtime.state = 'streaming'
+      } else if (msg.blockType === 'tool_use') {
+        runtime.state = 'tool_executing'
+        runtime.verb = typeof msg.toolName === 'string' ? msg.toolName : runtime.verb
+        typingController.start(chatId)
       }
       break
     case 'content_delta':
@@ -297,6 +386,16 @@ async function handleServerMessage(chatId: string, msg: ServerMessage): Promise<
         getBlockBuffer(chatId).append(msg.text)
       }
       break
+    case 'tool_use_complete':
+      runtime.state = 'tool_executing'
+      runtime.verb = typeof msg.toolName === 'string' ? msg.toolName : runtime.verb
+      typingController.start(chatId)
+      break
+    case 'tool_result':
+      runtime.state = 'thinking'
+      runtime.verb = undefined
+      typingController.start(chatId)
+      break
     case 'permission_request': {
       runtime.pendingPermissionCount += 1
       runtime.state = 'permission_pending'
@@ -306,6 +405,7 @@ async function handleServerMessage(chatId: string, msg: ServerMessage): Promise<
         pendingPermissions.set(chatId, pending)
       }
       pending.add(msg.requestId)
+      typingController.stop(chatId)
       await sendText(
         chatId,
         `${formatPermissionRequest(msg.toolName, msg.input, msg.requestId)}\n\n${formatPermissionInstructions(msg.requestId)}`,
@@ -315,7 +415,7 @@ async function handleServerMessage(chatId: string, msg: ServerMessage): Promise<
     case 'message_complete': {
       runtime.state = 'idle'
       runtime.verb = undefined
-      void sendTypingIndicator(chatId, 'cancel')
+      typingController.stop(chatId)
       await blockBuffers.get(chatId)?.complete()
       blockBuffers.delete(chatId)
       break
@@ -323,7 +423,7 @@ async function handleServerMessage(chatId: string, msg: ServerMessage): Promise<
     case 'error':
       runtime.state = 'idle'
       runtime.verb = undefined
-      void sendTypingIndicator(chatId, 'cancel')
+      typingController.stop(chatId)
       blockBuffers.get(chatId)?.reset()
       blockBuffers.delete(chatId)
       await sendText(chatId, `错误: ${msg.message}`)
@@ -362,7 +462,7 @@ async function routeUserMessage(message: WechatMessage): Promise<void> {
     return
   }
 
-  enqueue(chatId, async () => {
+  enqueueWechat(chatId, async () => {
     const hasAttachments = mediaCandidates.length > 0
     if (!hasAttachments && (text === '/help' || text === '帮助')) {
       await sendText(chatId, formatImHelp())
@@ -429,7 +529,7 @@ async function routeUserMessage(message: WechatMessage): Promise<void> {
     const attachments = await collectAttachments(chatId, mediaCandidates)
     const effectiveText = text || (attachments.length > 0 ? '(用户发送了附件)' : '')
     if (!effectiveText && attachments.length === 0) return
-    void sendTypingIndicator(chatId, 'typing')
+    typingController.start(chatId)
     const sent = bridge.sendUserMessage(chatId, effectiveText, attachments.length ? attachments : undefined)
     if (!sent) await sendText(chatId, '消息发送失败，连接可能已断开。请发送 /new 重新开始。')
   })
@@ -525,6 +625,7 @@ void pollLoop()
 process.on('SIGINT', () => {
   console.log('[WeChat] Shutting down...')
   stopped = true
+  typingController.destroy()
   bridge.destroy()
   dedup.destroy()
   process.exit(0)
diff --git a/adapters/wechat/protocol.ts b/adapters/wechat/protocol.ts
index e7e0a751..4bf3c00f 100644
--- a/adapters/wechat/protocol.ts
+++ b/adapters/wechat/protocol.ts
@@ -275,7 +275,7 @@ export async function sendWechatText(params: {
     base_info: buildBaseInfo(),
   }
 
-  await apiPostFetch({
+  const rawText = await apiPostFetch({
     baseUrl: params.baseUrl,
     endpoint: 'ilink/bot/sendmessage',
     body: JSON.stringify(body),
@@ -283,6 +283,7 @@ export async function sendWechatText(params: {
     timeoutMs: params.timeoutMs ?? API_TIMEOUT_MS,
     label: 'wechatSendMessage',
   })
+  assertWechatApiOk(rawText, 'wechatSendMessage')
 }
 
 export async function getWechatConfig(params: {
@@ -315,7 +316,7 @@ export async function sendWechatTyping(params: {
   status: 'typing' | 'cancel'
   timeoutMs?: number
 }): Promise<void> {
-  await apiPostFetch({
+  const rawText = await apiPostFetch({
     baseUrl: params.baseUrl,
     endpoint: 'ilink/bot/sendtyping',
     body: JSON.stringify({
@@ -328,6 +329,7 @@ export async function sendWechatTyping(params: {
     timeoutMs: params.timeoutMs ?? 10_000,
     label: 'wechatSendTyping',
   })
+  assertWechatApiOk(rawText, 'wechatSendTyping')
 }
 
 async function pollQrStatus(apiBaseUrl: string, qrcode: string): Promise<QrStatusResponse> {
@@ -428,6 +430,30 @@ function randomWechatUin(): string {
   return Buffer.from(String(uint32), 'utf-8').toString('base64')
 }
 
+function assertWechatApiOk(rawText: string, label: string): void {
+  if (!rawText.trim()) return
+
+  let body: unknown
+  try {
+    body = JSON.parse(rawText)
+  } catch {
+    return
+  }
+
+  if (!body || typeof body !== 'object') return
+
+  const record = body as Record<string, unknown>
+  const code = typeof record.ret === 'number'
+    ? record.ret
+    : typeof record.errcode === 'number'
+      ? record.errcode
+      : 0
+  if (code === 0) return
+
+  const message = typeof record.errmsg === 'string' ? record.errmsg : rawText
+  throw new Error(`${label} returned ${code}: ${message}`)
+}
+
 function isLoginFresh(login: ActiveLogin): boolean {
   return Date.now() - login.startedAt < QR_LOGIN_TTL_MS
 }
diff --git a/adapters/wechat/typing.ts b/adapters/wechat/typing.ts
new file mode 100644
index 00000000..d907c5af
--- /dev/null
+++ b/adapters/wechat/typing.ts
@@ -0,0 +1,42 @@
+export type WechatTypingStatus = 'typing' | 'cancel'
+
+type SendTyping = (chatId: string, status: WechatTypingStatus) => Promise<void>
+
+/**
+ * WeChat typing indicators expire quickly. Keep sending typing while the
+ * desktop session is active, then cancel when the turn completes.
+ */
+export class WechatTypingController {
+  private readonly active = new Map<string, ReturnType<typeof setInterval>>()
+
+  constructor(
+    private readonly sendTyping: SendTyping,
+    private readonly keepaliveIntervalMs = 5000,
+  ) {}
+
+  start(chatId: string): void {
+    void this.sendTyping(chatId, 'typing')
+    if (this.active.has(chatId)) return
+
+    const timer = setInterval(() => {
+      void this.sendTyping(chatId, 'typing')
+    }, this.keepaliveIntervalMs)
+    this.active.set(chatId, timer)
+  }
+
+  stop(chatId: string): void {
+    const timer = this.active.get(chatId)
+    if (timer) {
+      clearInterval(timer)
+      this.active.delete(chatId)
+    }
+    void this.sendTyping(chatId, 'cancel')
+  }
+
+  destroy(): void {
+    for (const timer of this.active.values()) {
+      clearInterval(timer)
+    }
+    this.active.clear()
+  }
+}
diff --git a/desktop/src/api/adapters.ts b/desktop/src/api/adapters.ts
index 8855c48d..8bac289b 100644
--- a/desktop/src/api/adapters.ts
+++ b/desktop/src/api/adapters.ts
@@ -41,6 +41,10 @@ export const adaptersApi = {
     return api.post<AdapterFileConfig>('/api/adapters/wechat/unbind', {})
   },
 
+  unbindDingtalk() {
+    return api.post<AdapterFileConfig>('/api/adapters/dingtalk/unbind', {})
+  },
+
   beginDingtalkRegistration() {
     return api.post<DingtalkRegistrationBegin>('/api/adapters/dingtalk/registration/begin', {})
   },
diff --git a/desktop/src/stores/adapterStore.test.ts b/desktop/src/stores/adapterStore.test.ts
index 88cdf057..73ab270c 100644
--- a/desktop/src/stores/adapterStore.test.ts
+++ b/desktop/src/stores/adapterStore.test.ts
@@ -7,6 +7,7 @@ describe('adapterStore IM pairing behavior', () => {
     startWechatLogin: vi.fn(),
     pollWechatLogin: vi.fn(),
     unbindWechat: vi.fn(),
+    unbindDingtalk: vi.fn(),
     beginDingtalkRegistration: vi.fn(),
     pollDingtalkRegistration: vi.fn(),
   }
@@ -59,4 +60,17 @@ describe('adapterStore IM pairing behavior', () => {
     expect(adaptersApi.unbindWechat).toHaveBeenCalledTimes(1)
     expect(useAdapterStore.getState().config).toBe(nextConfig)
   })
+
+  it('unbinds the DingTalk bot through the explicit bot action', async () => {
+    const nextConfig = { dingtalk: { pairedUsers: [], allowedUsers: [] } }
+    adaptersApi.unbindDingtalk.mockResolvedValue(nextConfig)
+
+    const { useAdapterStore } = await import('./adapterStore')
+
+    await useAdapterStore.getState().unbindDingtalkBot()
+
+    expect(adaptersApi.updateConfig).not.toHaveBeenCalled()
+    expect(adaptersApi.unbindDingtalk).toHaveBeenCalledTimes(1)
+    expect(useAdapterStore.getState().config).toBe(nextConfig)
+  })
 })
diff --git a/desktop/src/stores/adapterStore.ts b/desktop/src/stores/adapterStore.ts
index 47ff82b5..69dbd799 100644
--- a/desktop/src/stores/adapterStore.ts
+++ b/desktop/src/stores/adapterStore.ts
@@ -132,13 +132,9 @@ export const useAdapterStore = create<AdapterStore>((set, get) => ({
   },
 
   unbindDingtalkBot: async () => {
-    await get().updateConfig({
-      dingtalk: {
-        clientId: undefined,
-        clientSecret: undefined,
-        pairedUsers: [],
-      },
-    })
+    const config = await adaptersApi.unbindDingtalk()
+    set({ config })
+    void notifyTauriRestartAdapters()
   },
 
   removePairedUser: async (platform, userId) => {
diff --git a/src/server/__tests__/adapters.test.ts b/src/server/__tests__/adapters.test.ts
index 7229a7bb..fd3c7d11 100644
--- a/src/server/__tests__/adapters.test.ts
+++ b/src/server/__tests__/adapters.test.ts
@@ -125,4 +125,27 @@ describe('Adapters API', () => {
     expect(json.wechat.allowedUsers).toEqual([])
     expect(json.wechat.pairedUsers).toEqual([])
   })
+
+  it('clears DingTalk credentials on unbind', async () => {
+    const put = makeRequest('PUT', '/api/adapters', {
+      dingtalk: {
+        clientId: 'ding-client-1',
+        clientSecret: 'dingtalk-client-secret',
+        allowedUsers: ['ding-allowed-user'],
+        permissionCardTemplateId: 'permission-template',
+        pairedUsers: [{ userId: 'ding-user', displayName: 'DingTalk User', pairedAt: 1 }],
+      },
+    })
+    await handleAdaptersApi(put.req, put.url, put.segments)
+
+    const unbind = makeRequest('POST', '/api/adapters/dingtalk/unbind')
+    const res = await handleAdaptersApi(unbind.req, unbind.url, unbind.segments)
+    expect(res.status).toBe(200)
+    const json = await res.json() as any
+    expect(json.dingtalk.clientId).toBeUndefined()
+    expect(json.dingtalk.clientSecret).toBeUndefined()
+    expect(json.dingtalk.allowedUsers).toEqual([])
+    expect(json.dingtalk.permissionCardTemplateId).toBeUndefined()
+    expect(json.dingtalk.pairedUsers).toEqual([])
+  })
 })
diff --git a/src/server/api/adapters.ts b/src/server/api/adapters.ts
index 5e3a6096..c4e67cae 100644
--- a/src/server/api/adapters.ts
+++ b/src/server/api/adapters.ts
@@ -143,6 +143,18 @@ export async function handleAdaptersApi(
     if (tail[0] === 'wechat') {
       return handleWechatAdaptersApi(req, tail.slice(1))
     }
+    if (tail[0] === 'dingtalk' && req.method === 'POST' && tail[1] === 'unbind') {
+      await adapterService.updateConfig({
+        dingtalk: {
+          clientId: undefined,
+          clientSecret: undefined,
+          allowedUsers: [],
+          pairedUsers: [],
+          permissionCardTemplateId: undefined,
+        },
+      })
+      return Response.json(await adapterService.getConfig())
+    }
     if (tail[0] === 'dingtalk' && tail[1] === 'registration') {
       if (req.method === 'POST' && tail[2] === 'begin') {
         return Response.json(await beginDingtalkRegistration())