fix(team): filter internal control messages

src/main/index.ts

@@ -90,6 +90,7 @@ import {
 } from '@shared/constants';
 import { shouldSuppressDesktopNotificationForInboxText } from '@shared/utils/idleNotificationSemantics';
 import { parseInboxJson } from '@shared/utils/inboxNoise';
+import { isTeamInternalControlMessageText } from '@shared/utils/teamInternalControlMessages';
 import { createLogger } from '@shared/utils/logger';
 import { app, BrowserWindow, ipcMain } from 'electron';
 import { existsSync } from 'fs';
@@ -470,6 +471,9 @@ async function notifyNewInboxMessages(teamName: string, detail: string): Promise
       const msg = newMessages[i];
       // Skip messages sent from our own UI
       if (msg.source && suppressedSources.has(msg.source)) continue;
+      // Skip app-owned private bootstrap/control prompts. They are durable runtime proof inputs,
+      // not user-visible conversation messages.
+      if (isTeamInternalControlMessageText(msg.text)) continue;
       // Skip internal coordination noise (idle_notification, shutdown_*, etc.)
       if (shouldSuppressDesktopNotificationForInboxText(msg.text)) continue;
 

src/main/services/team/TeamMessageFeedService.ts

@@ -1,6 +1,7 @@
 import { classifyIdleNotificationText } from '@shared/utils/idleNotificationSemantics';
 import { createLogger } from '@shared/utils/logger';
 import { buildStandaloneSlashCommandMeta } from '@shared/utils/slashCommands';
+import { isTeamInternalControlMessageText } from '@shared/utils/teamInternalControlMessages';
 import { createHash } from 'crypto';
 
 import { getEffectiveInboxMessageId } from './inboxMessageIdentity';
@@ -138,6 +139,10 @@ function buildSyntheticOpenCodeBootstrapMessages(config: TeamConfig): InboxMessa
     }));
 }
 
+function isVisibleTeamMessage(message: InboxMessage): boolean {
+  return !isTeamInternalControlMessageText(message.text);
+}
+
 function annotateSlashCommandResponses(messages: InboxMessage[]): void {
   let pendingSlash = null as InboxMessage['slashCommand'] | null;
 
@@ -499,7 +504,9 @@ export class TeamMessageFeedService {
 
     const normalizeStartedAt = Date.now();
     const syntheticMessages = buildSyntheticOpenCodeBootstrapMessages(config);
-    let messages = [...inboxMessages, ...leadTexts, ...sentMessages, ...syntheticMessages];
+    let messages = [...inboxMessages, ...leadTexts, ...sentMessages, ...syntheticMessages].filter(
+      isVisibleTeamMessage
+    );
     messages = dedupeLeadProcessCopies(messages, leadTexts);
     messages = ensureEffectiveMessageIds(messages);
     messages = dedupeByMessageId(messages);

src/main/services/team/TeamProvisioningService.ts

@@ -88,6 +88,7 @@ import {
   parseAllTeammateMessages,
   type ParsedTeammateContent,
 } from '@shared/utils/teammateMessageParser';
+import { isTeamInternalControlMessageText } from '@shared/utils/teamInternalControlMessages';
 import { buildTeamMemberColorMap } from '@shared/utils/teamMemberColors';
 import { createCliAutoSuffixNameGuard, parseNumericSuffixName } from '@shared/utils/teamMemberName';
 import {
@@ -19400,24 +19401,28 @@ export class TeamProvisioningService {
       // that is not meant for the human user.
       const cleanReply = replyText ? stripAgentBlocks(replyText) : null;
       if (cleanReply) {
-        const relayMsg: InboxMessage = {
+        if (isTeamInternalControlMessageText(cleanReply)) {
-          from: leadName,
+          logger.debug(`[${teamName}] Suppressed internal lead relay echo`);
-          to: 'user',
+        } else {
-          text: cleanReply,
+          const relayMsg: InboxMessage = {
-          timestamp: nowIso(),
+            from: leadName,
-          read: true,
+            to: 'user',
-          summary: cleanReply.length > 60 ? cleanReply.slice(0, 57) + '...' : cleanReply,
+            text: cleanReply,
-          messageId: `lead-process-${runId}-${Date.now()}`,
+            timestamp: nowIso(),
-          source: 'lead_process',
+            read: true,
-        };
+            summary: cleanReply.length > 60 ? cleanReply.slice(0, 57) + '...' : cleanReply,
-        this.pushLiveLeadProcessMessage(teamName, relayMsg);
+            messageId: `lead-process-${runId}-${Date.now()}`,
-        // Persist to disk so relayed replies survive app restart and trigger FileWatcher
+            source: 'lead_process',
-        this.persistSentMessage(teamName, relayMsg);
+          };
-        this.teamChangeEmitter?.({
+          this.pushLiveLeadProcessMessage(teamName, relayMsg);
-          type: 'inbox',
+          // Persist to disk so relayed replies survive app restart and trigger FileWatcher
-          teamName,
+          this.persistSentMessage(teamName, relayMsg);
-          detail: 'lead-process-reply',
+          this.teamChangeEmitter?.({
-        });
+            type: 'inbox',
+            teamName,
+            detail: 'lead-process-reply',
+          });
+        }
       }
 
       return batch.length;
@@ -25426,7 +25431,7 @@ export class TeamProvisioningService {
             !hasCapturedVisibleSendMessage
           ) {
             const cleanText = stripAgentBlocks(text).trim();
-            if (cleanText.length > 0) {
+            if (cleanText.length > 0 && !isTeamInternalControlMessageText(cleanText)) {
               this.pushLiveLeadTextMessage(
                 run,
                 cleanText,
@@ -25440,7 +25445,7 @@ export class TeamProvisioningService {
           // into the live cache so Messages/Activity can show the earliest assistant output.
           if (!run.silentUserDmForward && !hasCapturedVisibleSendMessage) {
             const cleanText = stripAgentBlocks(text).trim();
-            if (cleanText.length > 0) {
+            if (cleanText.length > 0 && !isTeamInternalControlMessageText(cleanText)) {
               this.pushLiveLeadTextMessage(
                 run,
                 cleanText,

src/renderer/components/team/activity/LeadThoughtsGroup.tsx

@@ -37,6 +37,7 @@ import { stripAgentBlocks } from '@shared/constants/agentBlocks';
 import { isApiErrorMessage } from '@shared/utils/apiErrorDetector';
 import { isThoughtProtocolNoise } from '@shared/utils/inboxNoise';
 import { extractMarkdownPlainText } from '@shared/utils/markdownTextSearch';
+import { isTeamInternalControlMessageText } from '@shared/utils/teamInternalControlMessages';
 import { formatToolSummary, parseToolSummary } from '@shared/utils/toolSummary';
 import { ChevronDown, ChevronRight, ChevronUp, Maximize2 } from 'lucide-react';
 
@@ -73,6 +74,7 @@ export function isLeadThought(msg: InboxMessage): boolean {
   if (msg.messageKind === 'slash_command_result') return false;
   // Protocol noise (JSON coordination signals, raw teammate-message XML) should be hidden
   if (isThoughtProtocolNoise(msg.text)) return false;
+  if (isTeamInternalControlMessageText(msg.text)) return false;
   if (msg.source === 'lead_session') return true;
   if (msg.source === 'lead_process') return true;
   return false;
@@ -90,7 +92,7 @@ export function isLeadThought(msg: InboxMessage): boolean {
 function isLeadSessionNoise(msg: InboxMessage): boolean {
   if (msg.source !== 'lead_session' && msg.source !== 'lead_process') return false;
   if (typeof msg.to === 'string' && msg.to.trim().length > 0) return false;
-  return isThoughtProtocolNoise(msg.text);
+  return isThoughtProtocolNoise(msg.text) || isTeamInternalControlMessageText(msg.text);
 }
 
 export type TimelineItem =

src/renderer/components/team/kanban/KanbanTaskCard.test.tsx

@@ -81,6 +81,41 @@ const baseTask: TeamTaskWithKanban = {
 
 const noop = (): void => undefined;
 
+async function renderTaskCard(
+  props: Partial<React.ComponentProps<typeof KanbanTaskCard>> = {}
+): Promise<{ host: HTMLDivElement; root: ReturnType<typeof createRoot> }> {
+  vi.stubGlobal('IS_REACT_ACT_ENVIRONMENT', true);
+  const host = document.createElement('div');
+  document.body.appendChild(host);
+  const root = createRoot(host);
+
+  await act(async () => {
+    root.render(
+      React.createElement(KanbanTaskCard, {
+        task: baseTask,
+        teamName: 'my-team',
+        columnId: 'in_progress',
+        hasReviewers: true,
+        compact: false,
+        taskMap: new Map(),
+        memberColorMap: new Map([['alice', 'blue']]),
+        onRequestReview: noop,
+        onApprove: noop,
+        onRequestChanges: noop,
+        onMoveBackToDone: noop,
+        onStartTask: noop,
+        onCompleteTask: noop,
+        onCancelTask: noop,
+        onViewChanges: noop,
+        ...props,
+      })
+    );
+    await Promise.resolve();
+  });
+
+  return { host, root };
+}
+
 describe('KanbanTaskCard change badge', () => {
   afterEach(() => {
     document.body.innerHTML = '';
@@ -197,3 +232,45 @@ describe('KanbanTaskCard change badge', () => {
     });
   });
 });
+
+describe('KanbanTaskCard blocked border', () => {
+  afterEach(() => {
+    document.body.innerHTML = '';
+  });
+
+  it('highlights blocked tasks outside final columns', async () => {
+    const { host, root } = await renderTaskCard({
+      task: { ...baseTask, blockedBy: ['task-2'] },
+      columnId: 'in_progress',
+    });
+
+    const card = host.querySelector('[data-task-id="task-1"]');
+    expect(card?.className).toContain('kanban-task-card');
+    expect(card?.className).toContain('border-yellow-500/30');
+
+    await act(async () => {
+      root.unmount();
+      await Promise.resolve();
+    });
+  });
+
+  it.each(['done', 'approved'] as const)(
+    'does not highlight blocked tasks in %s',
+    async (columnId) => {
+      const { host, root } = await renderTaskCard({
+        task: { ...baseTask, blockedBy: ['task-2'] },
+        columnId,
+      });
+
+      const card = host.querySelector('[data-task-id="task-1"]');
+      expect(card?.className).not.toContain('border-yellow-500/30');
+      expect(card?.className).toContain('border-[var(--color-border)]');
+      expect(host.textContent).toContain('Blocked by');
+
+      await act(async () => {
+        root.unmount();
+        await Promise.resolve();
+      });
+    }
+  );
+});

src/renderer/components/team/kanban/KanbanTaskCard.tsx

@@ -245,6 +245,7 @@ export const KanbanTaskCard = memo(
     const blocksIds = task.blocks?.filter((id) => id.length > 0) ?? [];
     const hasBlockedBy = blockedByIds.length > 0;
     const hasBlocks = blocksIds.length > 0;
+    const shouldHighlightBlocked = hasBlockedBy && columnId !== 'done' && columnId !== 'approved';
     const cardSurfaceClass = isLight ? 'bg-white' : 'bg-[var(--color-surface-raised)]';
 
     const taskChangeRequestOptions = useMemo(() => buildTaskChangeRequestOptions(task), [task]);
@@ -288,8 +289,8 @@ export const KanbanTaskCard = memo(
     return (
       <div
         data-task-id={task.id}
-        className={`relative cursor-pointer rounded-md border px-1.5 py-3 transition-colors hover:border-[var(--color-border-emphasis)] ${
+        className={`kanban-task-card relative cursor-pointer rounded-md border px-1.5 py-3 hover:border-[var(--color-border-emphasis)] ${
-          hasBlockedBy
+          shouldHighlightBlocked
             ? `border-yellow-500/30 ${cardSurfaceClass}`
             : `border-[var(--color-border)] ${cardSurfaceClass}`
         }`}

src/renderer/index.css

@@ -20,6 +20,9 @@
   /* Subtle borders */
   --color-border-emphasis: rgba(148, 163, 184, 0.12);
   /* Emphasis borders */
+  --kanban-task-card-hover-shadow:
+    0 0 0 1px rgba(129, 140, 248, 0.28), 0 10px 30px rgba(37, 99, 235, 0.24),
+    0 0 22px rgba(129, 140, 248, 0.16);
   --color-text: #f1f5f9;
   --color-text-secondary: #94a3b8;
   --color-text-muted: #64748b;
@@ -269,6 +272,19 @@
   overflow: visible;
 }
 
+.kanban-task-card {
+  box-shadow: none;
+  transition:
+    border-color 140ms ease,
+    box-shadow 140ms ease,
+    background-color 140ms ease;
+}
+
+.kanban-task-card:hover,
+.kanban-task-card:focus-visible {
+  box-shadow: var(--kanban-task-card-hover-shadow);
+}
+
 .kanban-grid-item-wrapper {
   height: 100%;
 }
@@ -466,6 +482,9 @@
   /* Warm subtle border */
   --color-border-emphasis: #a8a5a0;
   /* Warm emphasis border */
+  --kanban-task-card-hover-shadow:
+    0 0 0 1px rgba(37, 99, 235, 0.28), 0 10px 26px rgba(37, 99, 235, 0.18),
+    0 0 18px rgba(79, 70, 229, 0.12);
   --color-text: #1c1b19;
   /* Warm near-black text */
   --color-text-secondary: #4d4b46;

src/renderer/utils/bootstrapPromptSanitizer.ts

@@ -4,6 +4,10 @@ import {
   getTeamModelLabel,
   getTeamProviderLabel,
 } from '@renderer/utils/teamModelCatalog';
+import {
+  isNativeAppManagedBootstrapCheckText,
+  isTeamInternalControlMessageText,
+} from '@shared/utils/teamInternalControlMessages';
 
 import type { InboxMessage, TeamProviderId } from '@shared/types';
 
@@ -125,6 +129,29 @@ export interface BootstrapAcknowledgementDisplay {
   body: string;
 }
 
+export interface InternalControlMessageDisplay {
+  summary: string;
+  body: string;
+}
+
+export function getInternalControlMessageDisplay(
+  message: Pick<InboxMessage, 'text'>
+): InternalControlMessageDisplay | null {
+  if (isNativeAppManagedBootstrapCheckText(message.text)) {
+    return {
+      summary: 'Internal bootstrap check',
+      body: 'Internal bootstrap check hidden in the UI.',
+    };
+  }
+  if (!isTeamInternalControlMessageText(message.text)) {
+    return null;
+  }
+  return {
+    summary: 'Internal control message',
+    body: 'Internal control message hidden in the UI.',
+  };
+}
+
 export function getBootstrapPromptDisplay(
   message: Pick<InboxMessage, 'text' | 'to'>
 ): BootstrapPromptDisplay | null {
@@ -211,6 +238,7 @@ export function getBootstrapAcknowledgementDisplay(
 
 export function getSanitizedInboxMessageText(message: Pick<InboxMessage, 'text' | 'to'>): string {
   return (
+    getInternalControlMessageDisplay(message)?.body ??
     getBootstrapPromptDisplay(message)?.body ??
     getBootstrapAcknowledgementDisplay(message as Pick<InboxMessage, 'text' | 'from'>)?.body ??
     message.text ??
@@ -222,6 +250,7 @@ export function getSanitizedInboxMessageSummary(
   message: Pick<InboxMessage, 'text' | 'to' | 'from' | 'summary'>
 ): string {
   return (
+    getInternalControlMessageDisplay(message)?.summary ??
     getBootstrapPromptDisplay(message)?.summary ??
     getBootstrapAcknowledgementDisplay(message)?.summary ??
     message.summary ??

src/renderer/utils/teamMessageFiltering.ts

@@ -4,6 +4,7 @@ import {
 } from '@renderer/utils/bootstrapPromptSanitizer';
 import { shouldKeepIdleMessageInActivityWhenNoiseHidden } from '@renderer/utils/idleNotificationSemantics';
 import { isInboxNoiseMessage } from '@shared/utils/inboxNoise';
+import { isTeamInternalControlMessageText } from '@shared/utils/teamInternalControlMessages';
 
 import type { InboxMessage } from '@shared/types';
 
@@ -125,7 +126,10 @@ export function filterTeamMessages(
   } = options;
   const leadNames = normalizeLeadNames(rawLeadNames);
 
-  let list = messages.filter((m) => m.messageKind !== 'task_comment_notification');
+  let list = messages.filter(
+    (m) =>
+      m.messageKind !== 'task_comment_notification' && !isTeamInternalControlMessageText(m.text)
+  );
   if (timeWindow) {
     list = list.filter((m) => {
       const ts = new Date(m.timestamp).getTime();

src/shared/utils/teamInternalControlMessages.ts

@@ -0,0 +1,47 @@
+const NATIVE_APP_MANAGED_BOOTSTRAP_CHECK_OPEN = '<agent_teams_native_app_managed_bootstrap_check>';
+const LEAD_INBOX_RELAY_PROMPT_OPEN = 'You have new inbox messages addressed to you (team lead ';
+const TEAMMATE_MESSAGE_OPEN_RE = /^<teammate-message\s/i;
+
+function stripTranscriptSpeakerPrefix(value: string): string {
+  let normalized = value.trim();
+  for (let i = 0; i < 3; i += 1) {
+    const next = normalized.replace(/^(?:Human|User):\s*/i, '').trimStart();
+    if (next === normalized) break;
+    normalized = next;
+  }
+  return normalized;
+}
+
+export function isNativeAppManagedBootstrapCheckText(value: unknown): boolean {
+  return (
+    typeof value === 'string' &&
+    stripTranscriptSpeakerPrefix(value).includes(NATIVE_APP_MANAGED_BOOTSTRAP_CHECK_OPEN)
+  );
+}
+
+export function isLeadInboxRelayControlPromptText(value: unknown): boolean {
+  if (typeof value !== 'string') {
+    return false;
+  }
+  const text = stripTranscriptSpeakerPrefix(value);
+  return (
+    text.startsWith(LEAD_INBOX_RELAY_PROMPT_OPEN) &&
+    text.includes('Process them in order (oldest first).') &&
+    text.includes('\nMessages:')
+  );
+}
+
+export function isTeammateProtocolControlText(value: unknown): boolean {
+  if (typeof value !== 'string') {
+    return false;
+  }
+  return TEAMMATE_MESSAGE_OPEN_RE.test(stripTranscriptSpeakerPrefix(value));
+}
+
+export function isTeamInternalControlMessageText(value: unknown): boolean {
+  return (
+    isNativeAppManagedBootstrapCheckText(value) ||
+    isLeadInboxRelayControlPromptText(value) ||
+    isTeammateProtocolControlText(value)
+  );
+}

test/main/services/team/OpenCodeProductionPromptArtifacts.safe-e2e.test.ts

@@ -83,8 +83,8 @@ describe('OpenCode production prompt artifacts safe e2e', () => {
     for (const member of launchCommand?.members ?? []) {
       expect(member.prompt).toContain(`You are ${member.name}`);
       expect(member.prompt).toContain('Team launch context:');
-      expect(member.prompt).toContain('agent-teams_member_briefing');
+      expect(member.prompt).toContain('agent_teams_app_managed_bootstrap_briefing');
-      expect(member.prompt).toContain('"runtimeProvider": "opencode"');
+      expect(member.prompt).toContain('AGENT_TEAMS_APP_MANAGED_BOOTSTRAP_V1');
       expect(member.prompt).toContain('agent-teams_message_send');
       expect(member.prompt).toContain('Launch bootstrap is a silent attach');
       expect(member.prompt).toContain('stay idle silently');

test/main/services/team/OpenCodeStateChangingBridgeCommandService.test.ts

@@ -5,6 +5,7 @@ import * as path from 'path';
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 
 import {
+  OPEN_CODE_APP_MANAGED_BOOTSTRAP_CONTRACT_VERSION,
   createOpenCodeBridgeHandshakeIdentityHash,
   type OpenCodeBridgeCommandName,
   type OpenCodeBridgeHandshake,
@@ -272,6 +273,8 @@ function peerIdentity(
         'opencode.launchTeam',
         'opencode.stopTeam',
       ],
+      opencodeAppManagedBootstrapContractVersion:
+        OPEN_CODE_APP_MANAGED_BOOTSTRAP_CONTRACT_VERSION,
     },
     runtime: {
       providerId: 'opencode',

test/main/services/team/TeamAgentLaunchMatrix.safe-e2e.test.ts

@@ -5052,7 +5052,6 @@ describe('Team agent launch matrix safe e2e', () => {
     trackLiveRun(svc, run);
 
     await (svc as any).launchMixedSecondaryLaneIfNeeded(run);
-    await waitForCondition(() => adapter.launchInputs.length === 2);
     await waitForCondition(() =>
       run.mixedSecondaryLanes.every((lane: { state: string }) => lane.state === 'finished')
     );
@@ -5094,7 +5093,6 @@ describe('Team agent launch matrix safe e2e', () => {
     trackLiveRun(svc, run);
 
     await (svc as any).launchMixedSecondaryLaneIfNeeded(run);
-    await waitForCondition(() => adapter.launchInputs.length === 2);
     await waitForCondition(() =>
       run.mixedSecondaryLanes.every((lane: { state: string }) => lane.state === 'finished')
     );
@@ -5146,13 +5144,17 @@ describe('Team agent launch matrix safe e2e', () => {
     const svc = new TeamProvisioningService();
     svc.setRuntimeAdapterRegistry(new TeamRuntimeAdapterRegistry([adapter]));
     const run = createMixedLiveRun({ teamName, projectPath, primaryProviderId: 'anthropic' });
+    removeMixedOpenCodeLaneForTest(run, 'bob');
     trackLiveRun(svc, run);
 
     await (svc as any).launchMixedSecondaryLaneIfNeeded(run);
-    await waitForCondition(() => adapter.launchInputs.length === 2);
+    await waitForCondition(() => adapter.launchInputs.length === 1);
     await waitForCondition(() =>
       run.mixedSecondaryLanes.every((lane: { state: string }) => lane.state === 'finished')
     );
+    expect(adapter.launchInputs.map((input) => input.expectedMembers.map((member) => member.name))).toEqual([
+      ['tom'],
+    ]);
 
     const statuses = await svc.getMemberSpawnStatuses(teamName);
 
@@ -5215,15 +5217,19 @@ describe('Team agent launch matrix safe e2e', () => {
             model: 'opencode/nemotron-3-super-free',
           },
         ],
-      ]);
+    ]);
     const run = createMixedLiveRun({ teamName, projectPath, primaryProviderId: 'anthropic' });
+    removeMixedOpenCodeLaneForTest(run, 'bob');
     trackLiveRun(svc, run);
 
     await (svc as any).launchMixedSecondaryLaneIfNeeded(run);
-    await waitForCondition(() => adapter.launchInputs.length === 2);
+    await waitForCondition(() => adapter.launchInputs.length === 1);
     await waitForCondition(() =>
       run.mixedSecondaryLanes.every((lane: { state: string }) => lane.state === 'finished')
     );
+    expect(adapter.launchInputs.map((input) => input.expectedMembers.map((member) => member.name))).toEqual([
+      ['tom'],
+    ]);
 
     const statuses = await svc.getMemberSpawnStatuses(teamName);
 
@@ -17443,6 +17449,15 @@ function markMixedOpenCodeLaneConfirmedForTest(run: any, memberName: string): vo
   };
 }
 
+function removeMixedOpenCodeLaneForTest(run: any, memberName: string): void {
+  run.allEffectiveMembers = (run.allEffectiveMembers ?? []).filter(
+    (member: { name?: string }) => member.name !== memberName
+  );
+  run.mixedSecondaryLanes = (run.mixedSecondaryLanes ?? []).filter(
+    (lane: { member?: { name?: string } }) => lane.member?.name !== memberName
+  );
+}
+
 function addGeminiPrimaryToMixedRun(run: any): void {
   const now = '2026-04-23T10:00:00.000Z';
   const reviewer = {

test/main/services/team/TeamMessageFeedService.test.ts

@@ -74,6 +74,29 @@ describe('TeamMessageFeedService', () => {
     expect(second.messages).toHaveLength(1);
   });
 
+  it('hides native app-managed bootstrap private control messages from the feed', async () => {
+    const service = new TeamMessageFeedService({
+      getConfig: vi.fn(async () => config),
+      getInboxMessages: vi.fn(async () => [
+        makeMessage({
+          messageId: 'native-bootstrap-private-check',
+          source: 'system_notification',
+          text: '<agent_teams_native_app_managed_bootstrap_check>\nprivate\n</agent_teams_native_app_managed_bootstrap_check>',
+        }),
+        makeMessage({
+          messageId: 'visible-user-message',
+          text: 'Visible message',
+        }),
+      ]),
+      getLeadSessionMessages: vi.fn(async () => []),
+      getSentMessages: vi.fn(async () => []),
+    });
+
+    const feed = await service.getFeed('signal-ops-4');
+
+    expect(feed.messages.map((message) => message.messageId)).toEqual(['visible-user-message']);
+  });
+
   it('refreshes the durable feed after cache expiry even when the dirty signal was missed', async () => {
     let inboxMessages: InboxMessage[] = [makeMessage()];
     const getInboxMessages = vi.fn(async () => inboxMessages);

test/main/services/team/TeamProvisioningServiceRelay.test.ts

@@ -306,6 +306,42 @@ describe('TeamProvisioningService relayLeadInboxMessages', () => {
     expect(service.getLiveLeadProcessMessages(teamName)).toHaveLength(1);
   });
 
+  it('does not persist echoed lead relay prompts as user-visible replies', async () => {
+    const service = new TeamProvisioningService();
+    const teamName = 'my-team';
+    seedConfig(teamName);
+    seedLeadInbox(teamName, [
+      {
+        from: 'tom',
+        text: '#f8d7235a done.',
+        timestamp: '2026-02-23T10:00:00.000Z',
+        read: false,
+        summary: '#f8d7235a done',
+        messageId: 'm-1',
+      },
+    ]);
+
+    const { writeSpy } = attachAliveRun(service, teamName);
+    const relayPromise = service.relayLeadInboxMessages(teamName);
+    const run = await waitForCapture(service);
+    const payload = JSON.parse(String(writeSpy.mock.calls[0]?.[0] ?? '{}')) as {
+      message?: { content?: Array<{ text?: string }> };
+    };
+    const relayedPrompt = payload.message?.content?.[0]?.text ?? '';
+
+    expect(relayedPrompt).toContain('You have new inbox messages addressed to you');
+
+    (service as any).handleStreamJsonMessage(run, {
+      type: 'assistant',
+      content: [{ type: 'text', text: `Human: ${relayedPrompt}` }],
+    });
+    (service as any).handleStreamJsonMessage(run, { type: 'result', subtype: 'success' });
+
+    await expect(relayPromise).resolves.toBe(1);
+    expect(service.getLiveLeadProcessMessages(teamName)).toHaveLength(0);
+    expect(hoisted.files.get(`/mock/teams/${teamName}/sentMessages.json`)).toBeUndefined();
+  });
+
   it('treats member work sync nudges as actionable in lead relay prompt', async () => {
     const service = new TeamProvisioningService();
     const teamName = 'my-team';
@@ -436,6 +472,37 @@ describe('TeamProvisioningService relayLeadInboxMessages', () => {
     }
   });
 
+  it('does not show internal control echoes as late lead thoughts', () => {
+    const service = new TeamProvisioningService();
+    const teamName = 'my-team';
+    seedConfig(teamName);
+    attachAliveRun(service, teamName);
+
+    const run = (service as unknown as { runs: Map<string, unknown> }).runs.get('run-1') as {
+      leadRelayCapture: null;
+    };
+
+    (service as any).handleStreamJsonMessage(run, {
+      type: 'assistant',
+      content: [
+        {
+          type: 'text',
+          text: `Human: You have new inbox messages addressed to you (team lead "team-lead").
+Process them in order (oldest first).
+If action is required, delegate via task creation or SendMessage, and keep responses minimal.
+
+Messages:
+1) From: tom
+   Timestamp: 2026-05-06T15:02:54.853Z
+   Text:
+   #f8d7235a done.`,
+        },
+      ],
+    });
+
+    expect(service.getLiveLeadProcessMessages(teamName)).toHaveLength(0);
+  });
+
   it('adds substantive-only task comment guidance for lead relay prompts', async () => {
     const service = new TeamProvisioningService();
     const teamName = 'my-team';

test/renderer/components/team/activity/LeadThoughtsGroup.test.ts

@@ -130,6 +130,25 @@ describe('LeadThoughtsGroup', () => {
       expect(groupTimelineItems([noise])).toEqual([]);
     });
 
+    it('excludes Human-prefixed internal control echoes from timeline', () => {
+      const leadRelayEcho = makeLeadSessionMsg(`Human: You have new inbox messages addressed to you (team lead "team-lead").
+Process them in order (oldest first).
+If action is required, delegate via task creation or SendMessage, and keep responses minimal.
+
+Messages:
+1) From: tom
+   Timestamp: 2026-05-06T15:02:54.853Z
+   Text:
+   #f8d7235a done.`);
+      const teammateEcho = makeLeadSessionMsg(
+        'Human: <teammate-message teammate_id="alice">{"type":"idle_notification"}</teammate-message>'
+      );
+
+      expect(isLeadThought(leadRelayEcho)).toBe(false);
+      expect(isLeadThought(teammateEcho)).toBe(false);
+      expect(groupTimelineItems([leadRelayEcho, teammateEcho])).toEqual([]);
+    });
+
     it('does not exclude noise messages with a recipient (captured SendMessage)', () => {
       const sendMsg = makeLeadSessionMsg(
         '{"type":"idle_notification","from":"tom","idleReason":"available"}',

test/renderer/utils/bootstrapPromptSanitizer.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest';
 
 import {
+  getInternalControlMessageDisplay,
   getBootstrapPromptDisplay,
   getSanitizedInboxMessageText,
 } from '@renderer/utils/bootstrapPromptSanitizer';
@@ -64,4 +65,28 @@ Do NOT send acknowledgement-only messages such as "ready" or "online".`);
 
     expect(display?.runtime).toBe('GPT-5.4 Mini');
   });
+
+  it('sanitizes native app-managed bootstrap private control prompts defensively', () => {
+    const message = makeMessage(`<agent_teams_native_app_managed_bootstrap_check>
+Your Agent Teams startup context was already loaded by the app.
+</agent_teams_native_app_managed_bootstrap_check>`);
+
+    expect(getInternalControlMessageDisplay(message)?.summary).toBe('Internal bootstrap check');
+    expect(getSanitizedInboxMessageText(message)).toBe('Internal bootstrap check hidden in the UI.');
+  });
+
+  it('sanitizes leaked lead inbox relay prompts defensively', () => {
+    const message = makeMessage(`Human: You have new inbox messages addressed to you (team lead "team-lead").
+Process them in order (oldest first).
+If action is required, delegate via task creation or SendMessage, and keep responses minimal.
+
+Messages:
+1) From: tom
+   Timestamp: 2026-05-06T15:02:54.853Z
+   Text:
+   #f8d7235a done.`);
+
+    expect(getInternalControlMessageDisplay(message)?.summary).toBe('Internal control message');
+    expect(getSanitizedInboxMessageText(message)).toBe('Internal control message hidden in the UI.');
+  });
 });

test/renderer/utils/teamMessageFiltering.test.ts

@@ -37,6 +37,81 @@ describe('filterTeamMessages', () => {
     expect(result[0].source).toBe('lead_process');
   });
 
+  it('hides native app-managed bootstrap private control messages', () => {
+    const messages = [
+      makeMessage({
+        messageId: 'native-bootstrap-private-check',
+        source: 'system_notification',
+        text: '<agent_teams_native_app_managed_bootstrap_check>\nprivate\n</agent_teams_native_app_managed_bootstrap_check>',
+      }),
+      makeMessage({
+        messageId: 'visible-message',
+        text: 'Visible message',
+      }),
+    ];
+
+    const result = filterTeamMessages(messages, {
+      timeWindow: null,
+      filter: { from: new Set(), to: new Set(), showNoise: true },
+      searchQuery: '',
+    });
+
+    expect(result.map((message) => message.messageId)).toEqual(['visible-message']);
+  });
+
+  it('hides leaked lead inbox relay prompt echoes', () => {
+    const messages = [
+      makeMessage({
+        messageId: 'lead-relay-echo',
+        source: 'lead_process',
+        to: 'user',
+        text: `Human: You have new inbox messages addressed to you (team lead "team-lead").
+Process them in order (oldest first).
+If action is required, delegate via task creation or SendMessage, and keep responses minimal.
+
+Messages:
+1) From: tom
+   Timestamp: 2026-05-06T15:02:54.853Z
+   Text:
+   #f8d7235a done.`,
+      }),
+      makeMessage({
+        messageId: 'visible-message',
+        text: 'Visible message',
+      }),
+    ];
+
+    const result = filterTeamMessages(messages, {
+      timeWindow: null,
+      filter: { from: new Set(), to: new Set(), showNoise: true },
+      searchQuery: '',
+    });
+
+    expect(result.map((message) => message.messageId)).toEqual(['visible-message']);
+  });
+
+  it('hides Human-prefixed teammate protocol echoes', () => {
+    const messages = [
+      makeMessage({
+        messageId: 'teammate-protocol-echo',
+        source: 'lead_process',
+        text: 'Human: <teammate-message teammate_id="alice">{"type":"idle_notification"}</teammate-message>',
+      }),
+      makeMessage({
+        messageId: 'visible-message',
+        text: 'Visible message',
+      }),
+    ];
+
+    const result = filterTeamMessages(messages, {
+      timeWindow: null,
+      filter: { from: new Set(), to: new Set(), showNoise: true },
+      searchQuery: '',
+    });
+
+    expect(result.map((message) => message.messageId)).toEqual(['visible-message']);
+  });
+
   it('hides relay bridge copies when the original message is visible', () => {
     const messages = [
       makeMessage({

test/shared/utils/teamInternalControlMessages.test.ts

@@ -0,0 +1,42 @@
+import { describe, expect, it } from 'vitest';
+
+import {
+  isLeadInboxRelayControlPromptText,
+  isTeamInternalControlMessageText,
+  isTeammateProtocolControlText,
+} from '@shared/utils/teamInternalControlMessages';
+
+const leadRelayPrompt = `You have new inbox messages addressed to you (team lead "team-lead").
+Process them in order (oldest first).
+If action is required, delegate via task creation or SendMessage, and keep responses minimal.
+IMPORTANT: Your text response here is shown to the user.
+
+Messages:
+1) From: tom
+   Timestamp: 2026-05-06T15:02:54.853Z
+   Text:
+   #f8d7235a done.`;
+
+describe('teamInternalControlMessages', () => {
+  it('detects lead inbox relay prompts and Human-prefixed echoes', () => {
+    expect(isLeadInboxRelayControlPromptText(leadRelayPrompt)).toBe(true);
+    expect(isLeadInboxRelayControlPromptText(`Human: ${leadRelayPrompt}`)).toBe(true);
+    expect(isTeamInternalControlMessageText(`Human: ${leadRelayPrompt}`)).toBe(true);
+  });
+
+  it('does not hide ordinary visible lead replies', () => {
+    expect(
+      isLeadInboxRelayControlPromptText(
+        'I delegated #f8d7235a to tom and asked alice to review when blockers clear.'
+      )
+    ).toBe(false);
+  });
+
+  it('detects Human-prefixed teammate protocol blocks', () => {
+    const text =
+      'Human: <teammate-message teammate_id="alice">\n{"type":"idle_notification"}\n</teammate-message>';
+
+    expect(isTeammateProtocolControlText(text)).toBe(true);
+    expect(isTeamInternalControlMessageText(text)).toBe(true);
+  });
+});