diff --git a/src/dashboard.ts b/src/dashboard.ts
index 7bf756a..4f7134c 100644
--- a/src/dashboard.ts
+++ b/src/dashboard.ts
@@ -33,7 +33,6 @@ interface CodexRateLimit {
 
 const STATUS_ICONS: Record<string, string> = {
   processing: '🟡',
-  idle: '🟢',
   waiting: '🔵',
   inactive: '⚪',
 };
@@ -107,7 +106,6 @@ function getStatusLabel(status: GroupStatus): string {
   if (status.status === 'processing') {
     return `처리 중 (${formatElapsed(status.elapsedMs || 0)})`;
   }
-  if (status.status === 'idle') return '대기 중';
   if (status.status === 'waiting') {
     return status.pendingTasks > 0
       ? `큐 대기 (태스크 ${status.pendingTasks}개)`
@@ -152,7 +150,7 @@ export function buildStatusContent(opts: DashboardOptions): string {
 
   const sections: string[] = [];
   let totalActive = 0;
-  let totalIdle = 0;
+  let totalWaiting = 0;
   let total = 0;
 
   for (const [categoryName, categoryEntries] of sortedCategories) {
@@ -177,13 +175,13 @@ export function buildStatusContent(opts: DashboardOptions): string {
     totalActive += categoryEntries.filter(
       (entry) => entry.status.status === 'processing',
     ).length;
-    totalIdle += categoryEntries.filter(
-      (entry) => entry.status.status === 'idle',
+    totalWaiting += categoryEntries.filter(
+      (entry) => entry.status.status === 'waiting',
     ).length;
     total += categoryEntries.length;
   }
 
-  const header = `**에이전트 상태** (${opts.assistantName}) — 활성 ${totalActive} | 대기 ${totalIdle} | 전체 ${total}`;
+  const header = `**에이전트 상태** (${opts.assistantName}) — 활성 ${totalActive} | 큐대기 ${totalWaiting} | 전체 ${total}`;
   return `${header}\n\n${sections.join('\n\n')}\n\n_${new Date().toLocaleTimeString('ko-KR')}_`;
 }
 
diff --git a/src/group-queue.test.ts b/src/group-queue.test.ts
index 6fffbd0..7dc4198 100644
--- a/src/group-queue.test.ts
+++ b/src/group-queue.test.ts
@@ -301,9 +301,9 @@ describe('GroupQueue', () => {
     expect(taskCallCount).toBe(1);
   });
 
-  // --- Idle preemption ---
+  // --- Active runs queue work without preemption ---
 
-  it('does NOT preempt active agent when not idle', async () => {
+  it('does not preempt an active agent when a task is queued', async () => {
     const fs = await import('fs');
     let resolveProcess: () => void;
 
@@ -337,153 +337,4 @@ describe('GroupQueue', () => {
     resolveProcess!();
     await vi.advanceTimersByTimeAsync(10);
   });
-
-  it('preempts idle agent when task is enqueued', async () => {
-    const fs = await import('fs');
-    let resolveProcess: () => void;
-
-    const processMessages = vi.fn(async () => {
-      await new Promise<void>((resolve) => {
-        resolveProcess = resolve;
-      });
-      return true;
-    });
-
-    queue.setProcessMessagesFn(processMessages);
-
-    // Start processing
-    queue.enqueueMessageCheck('group1@g.us');
-    await vi.advanceTimersByTimeAsync(10);
-
-    // Register process and mark idle
-    queue.registerProcess('group1@g.us', {} as any, 'agent-1', 'test-group');
-    queue.notifyIdle('group1@g.us');
-
-    // Clear previous writes, then enqueue a task
-    const writeFileSync = vi.mocked(fs.default.writeFileSync);
-    writeFileSync.mockClear();
-
-    const taskFn = vi.fn(async () => {});
-    queue.enqueueTask('group1@g.us', 'task-1', taskFn);
-
-    // _close SHOULD have been written (agent is idle)
-    const closeWrites = writeFileSync.mock.calls.filter(
-      (call) => typeof call[0] === 'string' && call[0].endsWith('_close'),
-    );
-    expect(closeWrites).toHaveLength(1);
-
-    resolveProcess!();
-    await vi.advanceTimersByTimeAsync(10);
-  });
-
-  it('preempts idle agent when a fresh message run is queued', async () => {
-    const fs = await import('fs');
-    let resolveProcess: () => void;
-
-    const processMessages = vi.fn(async () => {
-      await new Promise<void>((resolve) => {
-        resolveProcess = resolve;
-      });
-      return true;
-    });
-
-    queue.setProcessMessagesFn(processMessages);
-
-    queue.enqueueMessageCheck('group1@g.us');
-    await vi.advanceTimersByTimeAsync(10);
-
-    queue.registerProcess('group1@g.us', {} as any, 'agent-1', 'test-group');
-    queue.notifyIdle('group1@g.us');
-
-    const writeFileSync = vi.mocked(fs.default.writeFileSync);
-    writeFileSync.mockClear();
-
-    queue.enqueueMessageCheck('group1@g.us');
-
-    const closeWrites = writeFileSync.mock.calls.filter(
-      (call) => typeof call[0] === 'string' && call[0].endsWith('_close'),
-    );
-    expect(closeWrites).toHaveLength(1);
-
-    resolveProcess!();
-    await vi.advanceTimersByTimeAsync(10);
-  });
-
-  it('preempts an idle run so the next message is handled in a fresh run', async () => {
-    const fs = await import('fs');
-    let resolveProcess: () => void;
-
-    const processMessages = vi.fn(async () => {
-      await new Promise<void>((resolve) => {
-        resolveProcess = resolve;
-      });
-      return true;
-    });
-
-    queue.setProcessMessagesFn(processMessages);
-    queue.enqueueMessageCheck('group1@g.us');
-    await vi.advanceTimersByTimeAsync(10);
-
-    queue.registerProcess('group1@g.us', {} as any, 'agent-1', 'test-group');
-    queue.notifyIdle('group1@g.us');
-
-    const writeFileSync = vi.mocked(fs.default.writeFileSync);
-    writeFileSync.mockClear();
-
-    queue.enqueueMessageCheck('group1@g.us', 'test-group');
-
-    const closeWrites = writeFileSync.mock.calls.filter(
-      (call) => typeof call[0] === 'string' && call[0].endsWith('_close'),
-    );
-    expect(closeWrites).toHaveLength(1);
-
-    resolveProcess!();
-    await vi.advanceTimersByTimeAsync(10);
-
-    expect(processMessages).toHaveBeenCalledTimes(2);
-  });
-
-  it('preempts when idle arrives with pending tasks', async () => {
-    const fs = await import('fs');
-    let resolveProcess: () => void;
-
-    const processMessages = vi.fn(async () => {
-      await new Promise<void>((resolve) => {
-        resolveProcess = resolve;
-      });
-      return true;
-    });
-
-    queue.setProcessMessagesFn(processMessages);
-
-    // Start processing
-    queue.enqueueMessageCheck('group1@g.us');
-    await vi.advanceTimersByTimeAsync(10);
-
-    // Register process and enqueue a task (no idle yet — no preemption)
-    queue.registerProcess('group1@g.us', {} as any, 'agent-1', 'test-group');
-
-    const writeFileSync = vi.mocked(fs.default.writeFileSync);
-    writeFileSync.mockClear();
-
-    const taskFn = vi.fn(async () => {});
-    queue.enqueueTask('group1@g.us', 'task-1', taskFn);
-
-    let closeWrites = writeFileSync.mock.calls.filter(
-      (call) => typeof call[0] === 'string' && call[0].endsWith('_close'),
-    );
-    expect(closeWrites).toHaveLength(0);
-
-    // Now agent becomes idle — should preempt because task is pending
-    writeFileSync.mockClear();
-    queue.notifyIdle('group1@g.us');
-
-    closeWrites = writeFileSync.mock.calls.filter(
-      (call) => typeof call[0] === 'string' && call[0].endsWith('_close'),
-    );
-    expect(closeWrites).toHaveLength(1);
-
-    resolveProcess!();
-    await vi.advanceTimersByTimeAsync(10);
-  });
 });
diff --git a/src/group-queue.ts b/src/group-queue.ts
index d82c9e7..ad1052c 100644
--- a/src/group-queue.ts
+++ b/src/group-queue.ts
@@ -21,7 +21,6 @@ const BASE_RETRY_MS = 5000;
 
 interface GroupState {
   active: boolean;
-  idleWaiting: boolean;
   closingStdin: boolean;
   isTaskProcess: boolean;
   runningTaskId: string | null;
@@ -39,7 +38,7 @@ interface GroupState {
 
 export interface GroupStatus {
   jid: string;
-  status: 'processing' | 'idle' | 'waiting' | 'inactive';
+  status: 'processing' | 'waiting' | 'inactive';
   elapsedMs: number | null;
   pendingMessages: boolean;
   pendingTasks: number;
@@ -59,7 +58,6 @@ export class GroupQueue {
     if (!state) {
       state = {
         active: false,
-        idleWaiting: false,
         closingStdin: false,
         isTaskProcess: false,
         runningTaskId: null,
@@ -85,10 +83,6 @@ export class GroupQueue {
     this.processMessagesFn = fn;
   }
 
-  private canPreemptIdleActiveRun(state: GroupState): boolean {
-    return state.idleWaiting;
-  }
-
   private createRunId(): string {
     return `run-${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 8)}`;
   }
@@ -105,12 +99,6 @@ export class GroupQueue {
 
     if (state.active) {
       state.pendingMessages = true;
-      if (this.canPreemptIdleActiveRun(state)) {
-        this.closeStdin(groupJid, {
-          runId: state.currentRunId ?? undefined,
-          reason: 'pending-message-preemption',
-        });
-      }
       logger.debug({ groupJid }, 'Agent active, message queued');
       return;
     }
@@ -165,9 +153,6 @@ export class GroupQueue {
 
     if (state.active) {
       state.pendingTasks.push({ id: taskId, groupJid, fn });
-      if (this.canPreemptIdleActiveRun(state)) {
-        this.closeStdin(groupJid);
-      }
       logger.debug({ groupJid, taskId }, 'Agent active, task queued');
       return;
     }
@@ -212,29 +197,6 @@ export class GroupQueue {
     );
   }
 
-  /**
-   * Mark the agent process as idle-waiting (finished work, waiting for IPC input).
-   * If tasks are pending, preempt the idle agent process immediately.
-   */
-  notifyIdle(groupJid: string, runId?: string): void {
-    const state = this.getGroup(groupJid);
-    state.idleWaiting = true;
-    logger.info(
-      {
-        groupJid,
-        runId: runId ?? state.currentRunId,
-        pendingTasks: state.pendingTasks.length,
-      },
-      'Agent entered idle wait state',
-    );
-    if (state.pendingTasks.length > 0) {
-      this.closeStdin(groupJid, {
-        runId: runId ?? state.currentRunId ?? undefined,
-        reason: 'pending-task-preemption',
-      });
-    }
-  }
-
   /**
    * Signal the active agent process to wind down by writing a close sentinel.
    */
@@ -245,7 +207,6 @@ export class GroupQueue {
     const state = this.getGroup(groupJid);
     if (!state.active || !state.groupFolder) return;
     state.closingStdin = true;
-    state.idleWaiting = false;
 
     const inputDir = path.join(DATA_DIR, 'ipc', state.groupFolder, 'input');
     try {
@@ -281,7 +242,6 @@ export class GroupQueue {
     const state = this.getGroup(groupJid);
     const runId = this.createRunId();
     state.active = true;
-    state.idleWaiting = false;
     state.closingStdin = false;
     state.isTaskProcess = false;
     state.currentRunId = runId;
@@ -332,7 +292,6 @@ export class GroupQueue {
       );
       state.active = false;
       state.startedAt = null;
-      state.idleWaiting = false;
       state.closingStdin = false;
       state.process = null;
       state.processName = null;
@@ -346,7 +305,6 @@ export class GroupQueue {
   private async runTask(groupJid: string, task: QueuedTask): Promise<void> {
     const state = this.getGroup(groupJid);
     state.active = true;
-    state.idleWaiting = false;
     state.closingStdin = false;
     state.isTaskProcess = true;
     state.runningTaskId = task.id;
@@ -367,7 +325,6 @@ export class GroupQueue {
       state.isTaskProcess = false;
       state.runningTaskId = null;
       state.startedAt = null;
-      state.idleWaiting = false;
       state.closingStdin = false;
       state.process = null;
       state.processName = null;
@@ -495,10 +452,8 @@ export class GroupQueue {
         };
       }
       let status: GroupStatus['status'];
-      if (state.active && !state.idleWaiting) {
+      if (state.active) {
         status = 'processing';
-      } else if (state.active && state.idleWaiting) {
-        status = 'idle';
       } else if (
         state.pendingMessages ||
         state.pendingTasks.length > 0 ||
diff --git a/src/index.ts b/src/index.ts
index 61a1f35..35a2854 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -355,14 +355,13 @@ async function refreshChannelMeta(): Promise<void> {
 }
 
 function getStatusLabel(s: {
-  status: 'processing' | 'idle' | 'waiting' | 'inactive';
+  status: 'processing' | 'waiting' | 'inactive';
   elapsedMs: number | null;
   pendingMessages: boolean;
   pendingTasks: number;
 }): string {
   if (s.status === 'processing')
     return `처리 중 (${formatElapsed(s.elapsedMs || 0)})`;
-  if (s.status === 'idle') return '대기 중';
   if (s.status === 'waiting')
     return s.pendingTasks > 0
       ? `큐 대기 (태스크 ${s.pendingTasks}개)`
@@ -425,7 +424,7 @@ function writeLocalStatusSnapshot(): void {
           name: string;
           folder: string;
           agentType: 'claude-code' | 'codex';
-          status: 'processing' | 'idle' | 'waiting' | 'inactive';
+          status: 'processing' | 'waiting' | 'inactive';
           elapsedMs: number | null;
           pendingMessages: boolean;
           pendingTasks: number;
@@ -443,7 +442,7 @@ function buildStatusContent(): string {
   // Collect all entries keyed by jid, with agent type info
   interface RoomEntry {
     agentType: 'claude-code' | 'codex';
-    status: 'processing' | 'idle' | 'waiting' | 'inactive';
+    status: 'processing' | 'waiting' | 'inactive';
     elapsedMs: number | null;
     pendingMessages: boolean;
     pendingTasks: number;
@@ -1059,7 +1058,7 @@ async function main(): Promise<void> {
         (
           status,
         ): status is typeof status & {
-          status: 'processing' | 'idle' | 'waiting';
+          status: 'processing' | 'waiting';
         } => status.status !== 'inactive',
       )
       .map((status) => ({
diff --git a/src/message-runtime.test.ts b/src/message-runtime.test.ts
index cfa7378..09b9651 100644
--- a/src/message-runtime.test.ts
+++ b/src/message-runtime.test.ts
@@ -190,6 +190,130 @@ describe('createMessageRuntime', () => {
     });
   });
 
+  it('ignores generic failure bot messages in paired rooms', async () => {
+    const chatJid = 'group@test';
+    const group = makeGroup('codex');
+    const channel = makeChannel(chatJid);
+    const saveState = vi.fn();
+    const lastAgentTimestamps: Record<string, string> = {};
+
+    vi.mocked(db.isPairedRoomJid).mockReturnValue(true);
+    vi.mocked(db.getMessagesSince).mockReturnValue([
+      {
+        id: 'msg-1',
+        chat_jid: chatJid,
+        sender: 'other-bot@test',
+        sender_name: 'Other Bot',
+        content: '요청을 완료하지 못했습니다. 다시 시도해 주세요.',
+        timestamp: '2026-03-18T09:00:00.000Z',
+        is_bot_message: true,
+      },
+    ]);
+
+    const runtime = createMessageRuntime({
+      assistantName: 'Andy',
+      idleTimeout: 1_000,
+      pollInterval: 1_000,
+      timezone: 'UTC',
+      triggerPattern: /^@Andy\b/i,
+      channels: [channel],
+      queue: {
+        registerProcess: vi.fn(),
+        closeStdin: vi.fn(),
+        notifyIdle: vi.fn(),
+      } as any,
+      getRegisteredGroups: () => ({ [chatJid]: group }),
+      getSessions: () => ({}),
+      getLastTimestamp: () => '',
+      setLastTimestamp: vi.fn(),
+      getLastAgentTimestamps: () => lastAgentTimestamps,
+      saveState,
+      persistSession: vi.fn(),
+      clearSession: vi.fn(),
+    });
+
+    const result = await runtime.processGroupMessages(chatJid, {
+      runId: 'run-ignore-bot-failure-loop',
+      reason: 'messages',
+    });
+
+    expect(result).toBe(true);
+    expect(agentRunner.runAgentProcess).not.toHaveBeenCalled();
+    expect(lastAgentTimestamps[chatJid]).toBe('0');
+    expect(saveState).toHaveBeenCalled();
+  });
+
+  it('keeps mentionless substantive bot messages in paired rooms', async () => {
+    const chatJid = 'group@test';
+    const group = makeGroup('codex');
+    const channel = makeChannel(chatJid);
+    const saveState = vi.fn();
+    const lastAgentTimestamps: Record<string, string> = {};
+
+    vi.mocked(db.isPairedRoomJid).mockReturnValue(true);
+    vi.mocked(db.getMessagesSince).mockReturnValue([
+      {
+        id: 'msg-1',
+        chat_jid: chatJid,
+        sender: 'other-bot@test',
+        sender_name: 'Other Bot',
+        content: '정리해보면 Reaction Engine이 1순위 같아.',
+        timestamp: '2026-03-18T09:00:00.000Z',
+        is_bot_message: true,
+      },
+    ]);
+    vi.mocked(agentRunner.runAgentProcess).mockImplementation(
+      async (_group, _input, _onProcess, onOutput) => {
+        await onOutput?.({
+          status: 'success',
+          result: '그 방향이 맞습니다.',
+          newSessionId: 'session-paired-bot',
+        });
+        return {
+          status: 'success',
+          result: '그 방향이 맞습니다.',
+          newSessionId: 'session-paired-bot',
+        };
+      },
+    );
+
+    const runtime = createMessageRuntime({
+      assistantName: 'Andy',
+      idleTimeout: 1_000,
+      pollInterval: 1_000,
+      timezone: 'UTC',
+      triggerPattern: /^@Andy\b/i,
+      channels: [channel],
+      queue: {
+        registerProcess: vi.fn(),
+        closeStdin: vi.fn(),
+        notifyIdle: vi.fn(),
+      } as any,
+      getRegisteredGroups: () => ({ [chatJid]: group }),
+      getSessions: () => ({}),
+      getLastTimestamp: () => '',
+      setLastTimestamp: vi.fn(),
+      getLastAgentTimestamps: () => lastAgentTimestamps,
+      saveState,
+      persistSession: vi.fn(),
+      clearSession: vi.fn(),
+    });
+
+    const result = await runtime.processGroupMessages(chatJid, {
+      runId: 'run-mentionless-paired-bot-message',
+      reason: 'messages',
+    });
+
+    expect(result).toBe(true);
+    expect(agentRunner.runAgentProcess).toHaveBeenCalledTimes(1);
+    expect(channel.sendMessage).toHaveBeenCalledWith(
+      chatJid,
+      '그 방향이 맞습니다.',
+    );
+    expect(lastAgentTimestamps[chatJid]).toBe('1');
+    expect(saveState).toHaveBeenCalled();
+  });
+
   it('clears Claude sessions and closes stdin immediately on poisoned output', async () => {
     const chatJid = 'group@test';
     const group = makeGroup('claude-code');
diff --git a/src/message-runtime.ts b/src/message-runtime.ts
index 54d7f72..be705d5 100644
--- a/src/message-runtime.ts
+++ b/src/message-runtime.ts
@@ -126,6 +126,25 @@ export function createMessageRuntime(deps: MessageRuntimeDeps): {
       channel?.isOwnMessage?.bind(channel),
     );
 
+  const filterLoopingPairedBotMessages = (
+    chatJid: string,
+    messages: Parameters<typeof filterProcessableMessages>[0],
+    failureText: string,
+  ) => {
+    if (!isPairedRoomJid(chatJid)) return messages;
+
+    // Keep mentionless paired-room collaboration intact, but drop the generic
+    // failure boilerplate from other bots so paired agents do not amplify it
+    // into a reply loop.
+    return messages.filter(
+      (message) =>
+        !(
+          message.is_bot_message &&
+          message.content.trim() === failureText
+        ),
+    );
+  };
+
   const deliverOpenWorkItem = async (
     channel: Channel,
     item: WorkItem,
@@ -575,10 +594,10 @@ export function createMessageRuntime(deps: MessageRuntimeDeps): {
         sinceSeqCursor,
         deps.assistantName,
       );
-      const missedMessages = getProcessableMessages(
+      const missedMessages = filterLoopingPairedBotMessages(
         chatJid,
-        rawMissedMessages,
-        channel,
+        getProcessableMessages(chatJid, rawMissedMessages, channel),
+        FAILURE_FINAL_TEXT,
       );
 
       if (missedMessages.length === 0) {