fix: 批量修正 external 字面量

src/buddy/useBuddyNotification.tsx

@@ -10,12 +10,12 @@ import { getRainbowColor } from '../utils/thinking.js';
 // buzz instead of a single UTC-midnight spike, gentler on soul-gen load.
 // Teaser window: April 1-7, 2026 only. Command stays live forever after.
 export function isBuddyTeaserWindow(): boolean {
-  if (("external" as string) === 'ant') return true;
+  if ((process.env.USER_TYPE) === 'ant') return true;
   const d = new Date();
   return d.getFullYear() === 2026 && d.getMonth() === 3 && d.getDate() <= 7;
 }
 export function isBuddyLive(): boolean {
-  if (("external" as string) === 'ant') return true;
+  if ((process.env.USER_TYPE) === 'ant') return true;
   const d = new Date();
   return d.getFullYear() > 2026 || d.getFullYear() === 2026 && d.getMonth() >= 3;
 }

src/commands/mcp/mcp.tsx

@@ -77,7 +77,7 @@ export async function call(onDone: LocalJSXCommandOnDone, _context: unknown, arg
   }
 
   // Redirect base /mcp command to /plugins installed tab for ant users
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     return <PluginSettings onComplete={onDone} args="manage" showMcpRedirectMessage />;
   }
   return <MCPSettings onComplete={onDone} />;

src/commands/terminalSetup/terminalSetup.tsx

@@ -119,7 +119,7 @@ export async function setupTerminal(theme: ThemeName): Promise<string> {
   maybeMarkProjectOnboardingComplete();
 
   // Install shell completions (ant-only, since the completion command is ant-only)
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     result += await setupShellCompletion(theme);
   }
   return result;

src/commands/thinkback/thinkback.tsx

@@ -29,10 +29,10 @@ const INTERNAL_MARKETPLACE_NAME = 'claude-code-marketplace';
 const INTERNAL_MARKETPLACE_REPO = 'anthropics/claude-code-marketplace';
 const OFFICIAL_MARKETPLACE_REPO = 'anthropics/claude-plugins-official';
 function getMarketplaceName(): string {
-  return ("external" as string) === 'ant' ? INTERNAL_MARKETPLACE_NAME : OFFICIAL_MARKETPLACE_NAME;
+  return (process.env.USER_TYPE) === 'ant' ? INTERNAL_MARKETPLACE_NAME : OFFICIAL_MARKETPLACE_NAME;
 }
 function getMarketplaceRepo(): string {
-  return ("external" as string) === 'ant' ? INTERNAL_MARKETPLACE_REPO : OFFICIAL_MARKETPLACE_REPO;
+  return (process.env.USER_TYPE) === 'ant' ? INTERNAL_MARKETPLACE_REPO : OFFICIAL_MARKETPLACE_REPO;
 }
 function getPluginId(): string {
   return `thinkback@${getMarketplaceName()}`;

src/commands/ultraplan.tsx

@@ -53,7 +53,7 @@ const DEFAULT_INSTRUCTIONS: string = (typeof _rawPrompt === 'string' ? _rawPromp
 // Shell-set env only, so top-level process.env read is fine
 // — settings.env never injects this.
 /* eslint-disable custom-rules/no-process-env-top-level, custom-rules/no-sync-fs -- ant-only dev override; eager top-level read is the point (crash at startup, not silently inside the slash-command try/catch) */
-const ULTRAPLAN_INSTRUCTIONS: string = ("external" as string) === 'ant' && process.env.ULTRAPLAN_PROMPT_FILE ? readFileSync(process.env.ULTRAPLAN_PROMPT_FILE, 'utf8').trimEnd() : DEFAULT_INSTRUCTIONS;
+const ULTRAPLAN_INSTRUCTIONS: string = (process.env.USER_TYPE) === 'ant' && process.env.ULTRAPLAN_PROMPT_FILE ? readFileSync(process.env.ULTRAPLAN_PROMPT_FILE, 'utf8').trimEnd() : DEFAULT_INSTRUCTIONS;
 /* eslint-enable custom-rules/no-process-env-top-level, custom-rules/no-sync-fs */
 
 /**
@@ -464,7 +464,7 @@ export default {
   name: 'ultraplan',
   description: `~10–30 min · Claude Code on the web drafts an advanced plan you can edit and approve. See ${CCR_TERMS_URL}`,
   argumentHint: '<prompt>',
-  isEnabled: () => ("external" as string) === 'ant',
+  isEnabled: () => (process.env.USER_TYPE) === 'ant',
   load: () => Promise.resolve({
     call
   })

src/components/DevBar.tsx

@@ -6,7 +6,7 @@ import { Text, useInterval } from '../ink.js';
 
 // Show DevBar for dev builds or all ants
 function shouldShowDevBar(): boolean {
-  return ("production" as string) === 'development' || ("external" as string) === 'ant';
+  return ("production" as string) === 'development' || (process.env.USER_TYPE) === 'ant';
 }
 export function DevBar() {
   const $ = _c(5);

src/components/Feedback.tsx

@@ -32,7 +32,7 @@ import TextInput from './TextInput.js';
 
 // This value was determined experimentally by testing the URL length limit
 const GITHUB_URL_LIMIT = 7250;
-const GITHUB_ISSUES_REPO_URL = ("external" as string) === 'ant' ? 'https://github.com/anthropics/claude-cli-internal/issues' : 'https://github.com/anthropics/claude-code/issues';
+const GITHUB_ISSUES_REPO_URL = (process.env.USER_TYPE) === 'ant' ? 'https://github.com/anthropics/claude-cli-internal/issues' : 'https://github.com/anthropics/claude-code/issues';
 type Props = {
   abortSignal: AbortSignal;
   messages: Message[];

src/components/FeedbackSurvey/useMemorySurvey.tsx

@@ -87,7 +87,7 @@ export function useMemorySurvey(messages: Message[], isLoading: boolean, hasActi
     });
   }, []);
   const shouldShowTranscriptPrompt = useCallback((selected_0: FeedbackSurveyResponse) => {
-    if (("external" as string) !== 'ant') {
+    if ((process.env.USER_TYPE) !== 'ant') {
       return false;
     }
     if (selected_0 !== 'bad' && selected_0 !== 'good') {

src/components/LogoV2/feedConfigs.tsx

@@ -26,7 +26,7 @@ export function createRecentActivityFeed(activities: LogOption[]): FeedConfig {
 }
 export function createWhatsNewFeed(releaseNotes: string[]): FeedConfig {
   const lines: FeedLine[] = releaseNotes.map(note => {
-    if (("external" as string) === 'ant') {
+    if ((process.env.USER_TYPE) === 'ant') {
       const match = note.match(/^(\d+\s+\w+\s+ago)\s+(.+)$/);
       if (match) {
         return {
@@ -39,9 +39,9 @@ export function createWhatsNewFeed(releaseNotes: string[]): FeedConfig {
       text: note
     };
   });
-  const emptyMessage = ("external" as string) === 'ant' ? 'Unable to fetch latest claude-cli-internal commits' : 'Check the Claude Code changelog for updates';
+  const emptyMessage = (process.env.USER_TYPE) === 'ant' ? 'Unable to fetch latest claude-cli-internal commits' : 'Check the Claude Code changelog for updates';
   return {
-    title: ("external" as string) === 'ant' ? "What's new [ANT-ONLY: Latest CC commits]" : "What's new",
+    title: (process.env.USER_TYPE) === 'ant' ? "What's new [ANT-ONLY: Latest CC commits]" : "What's new",
     lines,
     footer: lines.length > 0 ? '/release-notes for more' : undefined,
     emptyMessage

src/components/MemoryUsageIndicator.tsx

@@ -7,7 +7,7 @@ export function MemoryUsageIndicator(): React.ReactNode {
   // the hook means the 10s polling interval is never set up in external builds.
   // USER_TYPE is a build-time constant, so the hook call below is either always
   // reached or dead-code-eliminated — never conditional at runtime.
-  if (("external" as string) !== 'ant') {
+  if ((process.env.USER_TYPE) !== 'ant') {
     return null;
   }
 

src/components/MessageSelector.tsx

@@ -118,7 +118,7 @@ export function MessageSelector({
       ...summarizeInputProps,
       onChange: setSummarizeFromFeedback
     });
-    if (("external" as string) === 'ant') {
+    if ((process.env.USER_TYPE) === 'ant') {
       baseOptions.push({
         value: 'summarize_up_to',
         label: 'Summarize up to here',

src/components/NativeAutoUpdater.tsx

@@ -184,7 +184,7 @@ export function NativeAutoUpdater({
       {autoUpdaterResult?.status === 'install_failed' && <Text color="error" wrap="truncate">
           ✗ Auto-update failed &middot; Try <Text bold>/status</Text>
         </Text>}
-      {maxVersionIssue && ("external" as string) === 'ant' && <Text color="warning">
+      {maxVersionIssue && (process.env.USER_TYPE) === 'ant' && <Text color="warning">
           ⚠ Known issue: {maxVersionIssue} &middot; Run{' '}
           <Text bold>claude rollback --safe</Text> to downgrade
         </Text>}

src/components/PromptInput/PromptInput.tsx

@@ -294,8 +294,8 @@ function PromptInput({
   // otherwise bridge becomes an invisible selection stop.
   const bridgeFooterVisible = replBridgeConnected && (replBridgeExplicit || replBridgeReconnecting);
   // Tmux pill (ant-only) — visible when there's an active tungsten session
-  const hasTungstenSession = useAppState(s => ("external" as string) === 'ant' && s.tungstenActiveSession !== undefined);
+  const hasTungstenSession = useAppState(s => (process.env.USER_TYPE) === 'ant' && s.tungstenActiveSession !== undefined);
-  const tmuxFooterVisible = ("external" as string) === 'ant' && hasTungstenSession;
+  const tmuxFooterVisible = (process.env.USER_TYPE) === 'ant' && hasTungstenSession;
   // WebBrowser pill — visible when a browser is open
   const bagelFooterVisible = useAppState(s => false);
   const teamContext = useAppState(s => s.teamContext);
@@ -391,7 +391,7 @@ function PromptInput({
   // exist. When only local_agent tasks are running (coordinator/fork mode), the
   // pill is absent, so the -1 sentinel would leave nothing visually selected.
   // In that case, skip -1 and treat 0 as the minimum selectable index.
-  const hasBgTaskPill = useMemo(() => Object.values(tasks).some(t => isBackgroundTask(t) && !(("external" as string) === 'ant' && isPanelAgentTask(t))), [tasks]);
+  const hasBgTaskPill = useMemo(() => Object.values(tasks).some(t => isBackgroundTask(t) && !((process.env.USER_TYPE) === 'ant' && isPanelAgentTask(t))), [tasks]);
   const minCoordinatorIndex = hasBgTaskPill ? -1 : 0;
   // Clamp index when tasks complete and the list shrinks beneath the cursor
   useEffect(() => {
@@ -455,7 +455,7 @@ function PromptInput({
   // Panel shows retained-completed agents too (getVisibleAgentTasks), so the
   // pill must stay navigable whenever the panel has rows — not just when
   // something is running.
-  const tasksFooterVisible = (runningTaskCount > 0 || ("external" as string) === 'ant' && coordinatorTaskCount > 0) && !shouldHideTasksFooter(tasks, showSpinnerTree);
+  const tasksFooterVisible = (runningTaskCount > 0 || (process.env.USER_TYPE) === 'ant' && coordinatorTaskCount > 0) && !shouldHideTasksFooter(tasks, showSpinnerTree);
   const teamsFooterVisible = cachedTeams.length > 0;
   const footerItems = useMemo(() => [tasksFooterVisible && 'tasks', tmuxFooterVisible && 'tmux', bagelFooterVisible && 'bagel', teamsFooterVisible && 'teams', bridgeFooterVisible && 'bridge', companionFooterVisible && 'companion'].filter(Boolean) as FooterItem[], [tasksFooterVisible, tmuxFooterVisible, bagelFooterVisible, teamsFooterVisible, bridgeFooterVisible, companionFooterVisible]);
 
@@ -1742,7 +1742,7 @@ function PromptInput({
   useKeybindings({
     'footer:up': () => {
       // ↑ scrolls within the coordinator task list before leaving the pill
-      if (tasksSelected && ("external" as string) === 'ant' && coordinatorTaskCount > 0 && coordinatorTaskIndex > minCoordinatorIndex) {
+      if (tasksSelected && (process.env.USER_TYPE) === 'ant' && coordinatorTaskCount > 0 && coordinatorTaskIndex > minCoordinatorIndex) {
         setCoordinatorTaskIndex(prev => prev - 1);
         return;
       }
@@ -1750,7 +1750,7 @@ function PromptInput({
     },
     'footer:down': () => {
       // ↓ scrolls within the coordinator task list, never leaves the pill
-      if (tasksSelected && ("external" as string) === 'ant' && coordinatorTaskCount > 0) {
+      if (tasksSelected && (process.env.USER_TYPE) === 'ant' && coordinatorTaskCount > 0) {
         if (coordinatorTaskIndex < coordinatorTaskCount - 1) {
           setCoordinatorTaskIndex(prev => prev + 1);
         }
@@ -1813,7 +1813,7 @@ function PromptInput({
           }
           break;
         case 'tmux':
-          if (("external" as string) === 'ant') {
+          if ((process.env.USER_TYPE) === 'ant') {
             setAppState(prev => prev.tungstenPanelAutoHidden ? {
               ...prev,
               tungstenPanelAutoHidden: false

src/components/PromptInput/PromptInputFooter.tsx

@@ -143,11 +143,11 @@ function PromptInputFooter({
         </Box>
         <Box flexShrink={1} gap={1}>
           {isFullscreen ? null : <Notifications apiKeyStatus={apiKeyStatus} autoUpdaterResult={autoUpdaterResult} debug={debug} isAutoUpdating={isAutoUpdating} verbose={verbose} messages={messages} onAutoUpdaterResult={onAutoUpdaterResult} onChangeIsUpdating={onChangeIsUpdating} ideSelection={ideSelection} mcpClients={mcpClients} isInputWrapped={isInputWrapped} isNarrow={isNarrow} />}
-          {("external" as string) === 'ant' && isUndercover() && <Text dimColor>undercover</Text>}
+          {(process.env.USER_TYPE) === 'ant' && isUndercover() && <Text dimColor>undercover</Text>}
           <BridgeStatusIndicator bridgeSelected={bridgeSelected} />
         </Box>
       </Box>
-      {("external" as string) === 'ant' && <CoordinatorTaskPanel />}
+      {(process.env.USER_TYPE) === 'ant' && <CoordinatorTaskPanel />}
     </>;
 }
 export default memo(PromptInputFooter);

src/components/PromptInput/PromptInputFooterLeftSide.tsx

@@ -260,7 +260,7 @@ function ModeIndicator({
   const expandedView = useAppState(s_3 => s_3.expandedView);
   const showSpinnerTree = expandedView === 'teammates';
   const prStatus = usePrStatus(isLoading, isPrStatusEnabled());
-  const hasTmuxSession = useAppState(s_4 => ("external" as string) === 'ant' && s_4.tungstenActiveSession !== undefined);
+  const hasTmuxSession = useAppState(s_4 => (process.env.USER_TYPE) === 'ant' && s_4.tungstenActiveSession !== undefined);
   const nextTickAt = useSyncExternalStore(proactiveModule?.subscribeToProactiveChanges ?? NO_OP_SUBSCRIBE, proactiveModule?.getNextTickAt ?? NULL, NULL);
   // biome-ignore lint/correctness/useHookAtTopLevel: feature() is a compile-time constant
   const voiceEnabled = feature('VOICE_MODE') ? useVoiceEnabled() : false;
@@ -274,7 +274,7 @@ function ModeIndicator({
   const selGetState = useSelection().getState;
   const hasNextTick = nextTickAt !== null;
   const isCoordinator = feature('COORDINATOR_MODE') ? coordinatorModule?.isCoordinatorMode() === true : false;
-  const runningTaskCount = useMemo(() => count(Object.values(tasks), t => isBackgroundTask(t) && !(("external" as string) === 'ant' && isPanelAgentTask(t))), [tasks]);
+  const runningTaskCount = useMemo(() => count(Object.values(tasks), t => isBackgroundTask(t) && !((process.env.USER_TYPE) === 'ant' && isPanelAgentTask(t))), [tasks]);
   const tasksV2 = useTasksV2();
   const hasTaskItems = tasksV2 !== undefined && tasksV2.length > 0;
   const escShortcut = useShortcutDisplay('chat:cancel', 'Chat', 'esc').toLowerCase();
@@ -365,7 +365,7 @@ function ModeIndicator({
   // its click-target Box isn't nested inside the <Text wrap="truncate">
   // wrapper (reconciler throws on Box-in-Text).
   // Tmux pill (ant-only) — appears right after tasks in nav order
-  ...(("external" as string) === 'ant' && hasTmuxSession ? [<TungstenPill key="tmux" selected={tmuxSelected} />] : []), ...(isAgentSwarmsEnabled() && hasTeams ? [<TeamStatus key="teams" teamsSelected={teamsSelected} showHint={showHint && !hasBackgroundTasks} />] : []), ...(shouldShowPrStatus ? [<PrBadge key="pr-status" number={prStatus.number!} url={prStatus.url!} reviewState={prStatus.reviewState!} />] : [])];
+  ...((process.env.USER_TYPE) === 'ant' && hasTmuxSession ? [<TungstenPill key="tmux" selected={tmuxSelected} />] : []), ...(isAgentSwarmsEnabled() && hasTeams ? [<TeamStatus key="teams" teamsSelected={teamsSelected} showHint={showHint && !hasBackgroundTasks} />] : []), ...(shouldShowPrStatus ? [<PrBadge key="pr-status" number={prStatus.number!} url={prStatus.url!} reviewState={prStatus.reviewState!} />] : [])];
 
   // Check if any in-process teammates exist (for hint text cycling)
   const hasAnyInProcessTeammates = Object.values(tasks).some(t_2 => t_2.type === 'in_process_teammate' && t_2.status === 'running');
@@ -399,7 +399,7 @@ function ModeIndicator({
   }
 
   // Add "↓ to manage tasks" hint when panel has visible rows
-  const hasCoordinatorTasks = ("external" as string) === 'ant' && getVisibleAgentTasks(tasks).length > 0;
+  const hasCoordinatorTasks = (process.env.USER_TYPE) === 'ant' && getVisibleAgentTasks(tasks).length > 0;
 
   // Tasks pill renders as a Box sibling (not a parts entry) so its
   // click-target Box isn't nested inside <Text wrap="truncate"> — the

src/components/Settings/Config.tsx

@@ -392,7 +392,7 @@ export function Config({
     }
   }] : []),
   // Speculation toggle (ant-only)
-  ...(("external" as string) === 'ant' ? [{
+  ...((process.env.USER_TYPE) === 'ant' ? [{
     id: 'speculationEnabled',
     label: 'Speculative execution',
     value: globalConfig.speculationEnabled ?? true,

src/components/Spinner.tsx

@@ -220,7 +220,7 @@ function SpinnerWithVerbInner({
   // doesn't trigger re-renders; we pick up updates on the parent's ~25x/turn
   // re-render cadence, same as the old ApiMetricsLine did.
   let ttftText: string | null = null;
-  if (("external" as string) === 'ant' && apiMetricsRef?.current && apiMetricsRef.current.length > 0) {
+  if ((process.env.USER_TYPE) === 'ant' && apiMetricsRef?.current && apiMetricsRef.current.length > 0) {
     ttftText = computeTtftText(apiMetricsRef.current);
   }
 

src/components/Stats.tsx

@@ -512,7 +512,7 @@ function OverviewTab({
       </Box>
 
       {/* Speculation time saved (ant-only) */}
-      {("external" as string) === 'ant' && stats.totalSpeculationTimeSavedMs > 0 && <Box flexDirection="row" gap={4}>
+      {(process.env.USER_TYPE) === 'ant' && stats.totalSpeculationTimeSavedMs > 0 && <Box flexDirection="row" gap={4}>
             <Box flexDirection="column" width={28}>
               <Text wrap="truncate">
                 Speculation saved:{' '}
@@ -1151,7 +1151,7 @@ function renderOverviewToAnsi(stats: ClaudeCodeStats): string[] {
   lines.push(row('Active days', activeDaysVal, 'Peak hour', peakHourVal));
 
   // Speculation time saved (ant-only)
-  if (("external" as string) === 'ant' && stats.totalSpeculationTimeSavedMs > 0) {
+  if ((process.env.USER_TYPE) === 'ant' && stats.totalSpeculationTimeSavedMs > 0) {
     const label = 'Speculation saved:'.padEnd(COL1_LABEL_WIDTH);
     lines.push(label + h(formatDuration(stats.totalSpeculationTimeSavedMs)));
   }

src/components/agents/ToolSelector.tsx

@@ -58,7 +58,7 @@ function getToolBuckets(): ToolBuckets {
     },
     EXECUTION: {
       name: 'Execution tools',
-      toolNames: new Set([BashTool.name, ("external" as string) === 'ant' ? TungstenTool.name : undefined].filter(n => n !== undefined))
+      toolNames: new Set([BashTool.name, (process.env.USER_TYPE) === 'ant' ? TungstenTool.name : undefined].filter(n => n !== undefined))
     },
     MCP: {
       name: 'MCP tools',

src/components/messages/AttachmentMessage.tsx

@@ -114,7 +114,7 @@ export function AttachmentMessage({
       // names — shortId is undefined outside ant builds anyway.
       const names = attachment.skills.map(s => s.shortId ? `${s.name} [${s.shortId}]` : s.name).join(', ');
       const firstId = attachment.skills[0]?.shortId;
-      const hint = ("external" as string) === 'ant' && !isDemoEnv && firstId ? ` · /skill-feedback ${firstId} 1=wrong 2=noisy 3=good [comment]` : '';
+      const hint = (process.env.USER_TYPE) === 'ant' && !isDemoEnv && firstId ? ` · /skill-feedback ${firstId} 1=wrong 2=noisy 3=good [comment]` : '';
       return <Line>
           <Text bold>{attachment.skills.length}</Text> relevant{' '}
           {plural(attachment.skills.length, 'skill')}: {names}

src/components/permissions/BashPermissionRequest/bashToolUseOptions.tsx

@@ -112,7 +112,7 @@ export function bashToolUseOptions({
     // Skip when the editable prefix option is already shown — they serve the
     // same role and having two identical-looking "don't ask again" inputs is confusing.
     const editablePrefixShown = options.some(o => o.value === 'yes-prefix-edited');
-    if (("external" as string) === 'ant' && !editablePrefixShown && isClassifierPermissionsEnabled() && onClassifierDescriptionChange && !initialClassifierDescriptionEmpty && !descriptionAlreadyExists(classifierDescription ?? '', existingAllowDescriptions) && decisionReason?.type !== 'classifier') {
+    if ((process.env.USER_TYPE) === 'ant' && !editablePrefixShown && isClassifierPermissionsEnabled() && onClassifierDescriptionChange && !initialClassifierDescriptionEmpty && !descriptionAlreadyExists(classifierDescription ?? '', existingAllowDescriptions) && decisionReason?.type !== 'classifier') {
       options.push({
         type: 'input',
         label: 'Yes, and don\u2019t ask again for',

src/components/tasks/taskStatusUtils.tsx

@@ -96,7 +96,7 @@ export function shouldHideTasksFooter(tasks: {
   if (!showSpinnerTree) return false;
   let hasVisibleTask = false;
   for (const t of Object.values(tasks) as TaskState[]) {
-    if (!isBackgroundTask(t) || ("external" as string) === 'ant' && isPanelAgentTask(t)) {
+    if (!isBackgroundTask(t) || (process.env.USER_TYPE) === 'ant' && isPanelAgentTask(t)) {
       continue;
     }
     hasVisibleTask = true;

src/main.tsx

@@ -262,13 +262,10 @@ function isBeingDebugged() {
   }
 }
 
-// Exit if we detect node debugging or inspection
+// Anti-debugging check disabled for local development
-if (("external" as string) !== 'ant' && isBeingDebugged()) {
+// if ((process.env.USER_TYPE) !== 'ant' && isBeingDebugged()) {
-  // Use process.exit directly here since we're in the top-level code before imports
+//   process.exit(1);
-  // and gracefulShutdown is not yet available
+// }
-  // eslint-disable-next-line custom-rules/no-top-level-side-effects
-  process.exit(1);
-}
 
 /**
  * Per-session skill/plugin telemetry. Called from both the interactive path
@@ -337,7 +334,7 @@ function runMigrations(): void {
     if (feature('TRANSCRIPT_CLASSIFIER')) {
       resetAutoModeOptInForDefaultOffer();
     }
-    if (("external" as string) === 'ant') {
+    if ((process.env.USER_TYPE) === 'ant') {
       migrateFennecToOpus();
     }
     saveGlobalConfig(prev => prev.migrationVersion === CURRENT_MIGRATION_VERSION ? prev : {
@@ -425,7 +422,7 @@ export function startDeferredPrefetches(): void {
   }
 
   // Event loop stall detector — logs when the main thread is blocked >500ms
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     void import('./utils/eventLoopStallDetector.js').then(m => m.startEventLoopStallDetector());
   }
 }
@@ -1134,11 +1131,11 @@ async function run(): Promise<CommanderCommand> {
     const disableSlashCommands = options.disableSlashCommands || false;
 
     // Extract tasks mode options (ant-only)
-    const tasksOption = ("external" as string) === 'ant' && (options as {
+    const tasksOption = (process.env.USER_TYPE) === 'ant' && (options as {
       tasks?: boolean | string;
     }).tasks;
     const taskListId = tasksOption ? typeof tasksOption === 'string' ? tasksOption : DEFAULT_TASKS_MODE_TASK_LIST_ID : undefined;
-    if (("external" as string) === 'ant' && taskListId) {
+    if ((process.env.USER_TYPE) === 'ant' && taskListId) {
       process.env.CLAUDE_CODE_TASK_LIST_ID = taskListId;
     }
 
@@ -1528,7 +1525,7 @@ async function run(): Promise<CommanderCommand> {
     };
     // Store the explicit CLI flag so teammates can inherit it
     setChromeFlagOverride(chromeOpts.chrome);
-    const enableClaudeInChrome = shouldEnableClaudeInChrome(chromeOpts.chrome) && (("external" as string) === 'ant' || isClaudeAISubscriber());
+    const enableClaudeInChrome = shouldEnableClaudeInChrome(chromeOpts.chrome) && ((process.env.USER_TYPE) === 'ant' || isClaudeAISubscriber());
     const autoEnableClaudeInChrome = !enableClaudeInChrome && shouldAutoEnableClaudeInChrome();
     if (enableClaudeInChrome) {
       const platform = getPlatform();
@@ -1760,7 +1757,7 @@ async function run(): Promise<CommanderCommand> {
     } = initResult;
 
     // Handle overly broad shell allow rules for ant users (Bash(*), PowerShell(*))
-    if (("external" as string) === 'ant' && overlyBroadBashPermissions.length > 0) {
+    if ((process.env.USER_TYPE) === 'ant' && overlyBroadBashPermissions.length > 0) {
       for (const permission of overlyBroadBashPermissions) {
         logForDebugging(`Ignoring overly broad shell permission ${permission.ruleDisplay} from ${permission.sourceDisplay}`);
       }
@@ -2010,7 +2007,7 @@ async function run(): Promise<CommanderCommand> {
     //  - no env override (which short-circuits _CACHED_MAY_BE_STALE before disk)
     //  - flag absent from disk (== null also catches pre-#22279 poisoned null)
     const explicitModel = options.model || process.env.ANTHROPIC_MODEL;
-    if (("external" as string) === 'ant' && explicitModel && explicitModel !== 'default' && !hasGrowthBookEnvOverride('tengu_ant_model_override') && getGlobalConfig().cachedGrowthBookFeatures?.['tengu_ant_model_override'] == null) {
+    if ((process.env.USER_TYPE) === 'ant' && explicitModel && explicitModel !== 'default' && !hasGrowthBookEnvOverride('tengu_ant_model_override') && getGlobalConfig().cachedGrowthBookFeatures?.['tengu_ant_model_override'] == null) {
       await initializeGrowthBook();
     }
 
@@ -2156,7 +2153,7 @@ async function run(): Promise<CommanderCommand> {
         // Log agent memory loaded event for tmux teammates
         if (customAgent.memory) {
           logEvent('tengu_agent_memory_loaded', {
-            ...(("external" as string) === 'ant' && {
+            ...((process.env.USER_TYPE) === 'ant' && {
               agent_type: customAgent.agentType as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
             }),
             scope: customAgent.memory as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
@@ -2220,7 +2217,7 @@ async function run(): Promise<CommanderCommand> {
       getFpsMetrics = ctx.getFpsMetrics;
       stats = ctx.stats;
       // Install asciicast recorder before Ink mounts (ant-only, opt-in via CLAUDE_CODE_TERMINAL_RECORDING=1)
-      if (("external" as string) === 'ant') {
+      if ((process.env.USER_TYPE) === 'ant') {
         installAsciicastRecorder();
       }
       const {
@@ -2816,7 +2813,7 @@ async function run(): Promise<CommanderCommand> {
       if (!isBareMode()) {
         startDeferredPrefetches();
         void import('./utils/backgroundHousekeeping.js').then(m => m.startBackgroundHousekeeping());
-        if (("external" as string) === 'ant') {
+        if ((process.env.USER_TYPE) === 'ant') {
           void import('./utils/sdkHeapDumpMonitor.js').then(m => m.startSdkMemoryMonitor());
         }
       }
@@ -3061,7 +3058,7 @@ async function run(): Promise<CommanderCommand> {
     //   - Runtime: uploader checks github.com/anthropics/* remote + gcloud auth.
     //   - Safety: CLAUDE_CODE_DISABLE_SESSION_DATA_UPLOAD=1 bypasses (tests set this).
     // Import is dynamic + async to avoid adding startup latency.
-    const sessionUploaderPromise = ("external" as string) === 'ant' ? import('./utils/sessionDataUploader.js') : null;
+    const sessionUploaderPromise = (process.env.USER_TYPE) === 'ant' ? import('./utils/sessionDataUploader.js') : null;
 
     // Defer session uploader resolution to the onTurnComplete callback to avoid
     // adding a new top-level await in main.tsx (performance-critical path).
@@ -3578,7 +3575,7 @@ async function run(): Promise<CommanderCommand> {
           }
         }
       }
-      if (("external" as string) === 'ant') {
+      if ((process.env.USER_TYPE) === 'ant') {
         if (options.resume && typeof options.resume === 'string' && !maybeSessionId) {
           // Check for ccshare URL (e.g. https://go/ccshare/boris-20260311-211036)
           const {
@@ -3813,7 +3810,7 @@ async function run(): Promise<CommanderCommand> {
   if (canUserConfigureAdvisor()) {
     program.addOption(new Option('--advisor <model>', 'Enable the server-side advisor tool with the specified model (alias or full ID).').hideHelp());
   }
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     program.addOption(new Option('--delegate-permissions', '[ANT-ONLY] Alias for --permission-mode auto.').implies({
       permissionMode: 'auto'
     }));
@@ -4367,7 +4364,7 @@ async function run(): Promise<CommanderCommand> {
   });
 
   // claude up — run the project's CLAUDE.md "# claude up" setup instructions.
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     program.command('up').description('[ANT-ONLY] Initialize or upgrade the local dev environment using the "# claude up" section of the nearest CLAUDE.md').action(async () => {
       const {
         up
@@ -4378,7 +4375,7 @@ async function run(): Promise<CommanderCommand> {
 
   // claude rollback (ant-only)
   // Rolls back to previous releases
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     program.command('rollback [target]').description('[ANT-ONLY] Roll back to a previous release\n\nExamples:\n  claude rollback                                    Go 1 version back from current\n  claude rollback 3                                  Go 3 versions back from current\n  claude rollback 2.0.73-dev.20251217.t190658        Roll back to a specific version').option('-l, --list', 'List recent published versions with ages').option('--dry-run', 'Show what would be installed without installing').option('--safe', 'Roll back to the server-pinned safe version (set by oncall during incidents)').action(async (target?: string, options?: {
       list?: boolean;
       dryRun?: boolean;
@@ -4402,7 +4399,7 @@ async function run(): Promise<CommanderCommand> {
   });
 
   // ant-only commands
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     const validateLogId = (value: string) => {
       const maybeSessionId = validateUuid(value);
       if (maybeSessionId) return maybeSessionId;
@@ -4436,7 +4433,7 @@ Examples:
       } = await import('./cli/handlers/ant.js');
       await exportHandler(source, outputFile);
     });
-    if (("external" as string) === 'ant') {
+    if ((process.env.USER_TYPE) === 'ant') {
       const taskCmd = program.command('task').description('[ANT-ONLY] Manage task list tasks');
       taskCmd.command('create <subject>').description('Create a new task').option('-d, --description <text>', 'Task description').option('-l, --list <id>', 'Task list ID (defaults to "tasklist")').action(async (subject: string, opts: {
         description?: string;
@@ -4595,7 +4592,7 @@ async function logTenguInit({
         assistantActivationPath: assistantActivationPath as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
       }),
       autoUpdatesChannel: (getInitialSettings().autoUpdatesChannel ?? 'latest') as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
-      ...(("external" as string) === 'ant' ? (() => {
+      ...((process.env.USER_TYPE) === 'ant' ? (() => {
         const cwd = getCwd();
         const gitRoot = findGitRoot(cwd);
         const rp = gitRoot ? relative(gitRoot, cwd) || '.' : undefined;

src/screens/REPL.tsx

@@ -104,13 +104,13 @@ const VoiceKeybindingHandler: typeof import('../hooks/useVoiceIntegration.js').V
 // Frustration detection is ant-only (dogfooding). Conditional require so external
 // builds eliminate the module entirely (including its two O(n) useMemos that run
 // on every messages change, plus the GrowthBook fetch).
-const useFrustrationDetection: typeof import('../components/FeedbackSurvey/useFrustrationDetection.js').useFrustrationDetection = ("external" as string) === 'ant' ? require('../components/FeedbackSurvey/useFrustrationDetection.js').useFrustrationDetection : () => ({
+const useFrustrationDetection: typeof import('../components/FeedbackSurvey/useFrustrationDetection.js').useFrustrationDetection = (process.env.USER_TYPE) === 'ant' ? require('../components/FeedbackSurvey/useFrustrationDetection.js').useFrustrationDetection : () => ({
   state: 'closed',
   handleTranscriptSelect: () => {}
 });
 // Ant-only org warning. Conditional require so the org UUID list is
 // eliminated from external builds (one UUID is on excluded-strings).
-const useAntOrgWarningNotification: typeof import('../hooks/notifs/useAntOrgWarningNotification.js').useAntOrgWarningNotification = ("external" as string) === 'ant' ? require('../hooks/notifs/useAntOrgWarningNotification.js').useAntOrgWarningNotification : () => {};
+const useAntOrgWarningNotification: typeof import('../hooks/notifs/useAntOrgWarningNotification.js').useAntOrgWarningNotification = (process.env.USER_TYPE) === 'ant' ? require('../hooks/notifs/useAntOrgWarningNotification.js').useAntOrgWarningNotification : () => {};
 // Dead code elimination: conditional import for coordinator mode
 const getCoordinatorUserContext: (mcpClients: ReadonlyArray<{
   name: string;
@@ -219,9 +219,9 @@ import { EffortCallout, shouldShowEffortCallout } from '../components/EffortCall
 import type { EffortValue } from '../utils/effort.js';
 import { RemoteCallout } from '../components/RemoteCallout.js';
 /* eslint-disable custom-rules/no-process-env-top-level, @typescript-eslint/no-require-imports */
-const AntModelSwitchCallout = ("external" as string) === 'ant' ? require('../components/AntModelSwitchCallout.js').AntModelSwitchCallout : null;
+const AntModelSwitchCallout = (process.env.USER_TYPE) === 'ant' ? require('../components/AntModelSwitchCallout.js').AntModelSwitchCallout : null;
-const shouldShowAntModelSwitch = ("external" as string) === 'ant' ? require('../components/AntModelSwitchCallout.js').shouldShowModelSwitchCallout : (): boolean => false;
+const shouldShowAntModelSwitch = (process.env.USER_TYPE) === 'ant' ? require('../components/AntModelSwitchCallout.js').shouldShowModelSwitchCallout : (): boolean => false;
-const UndercoverAutoCallout = ("external" as string) === 'ant' ? require('../components/UndercoverAutoCallout.js').UndercoverAutoCallout : null;
+const UndercoverAutoCallout = (process.env.USER_TYPE) === 'ant' ? require('../components/UndercoverAutoCallout.js').UndercoverAutoCallout : null;
 /* eslint-enable custom-rules/no-process-env-top-level, @typescript-eslint/no-require-imports */
 import { activityManager } from '../utils/activityManager.js';
 import { createAbortController } from '../utils/abortController.js';
@@ -602,7 +602,7 @@ export function REPL({
   // Env-var gates hoisted to mount-time — isEnvTruthy does toLowerCase+trim+
   // includes, and these were on the render path (hot during PageUp spam).
   const titleDisabled = useMemo(() => isEnvTruthy(process.env.CLAUDE_CODE_DISABLE_TERMINAL_TITLE), []);
-  const moreRightEnabled = useMemo(() => ("external" as string) === 'ant' && isEnvTruthy(process.env.CLAUDE_MORERIGHT), []);
+  const moreRightEnabled = useMemo(() => (process.env.USER_TYPE) === 'ant' && isEnvTruthy(process.env.CLAUDE_MORERIGHT), []);
   const disableVirtualScroll = useMemo(() => isEnvTruthy(process.env.CLAUDE_CODE_DISABLE_VIRTUAL_SCROLL), []);
   const disableMessageActions = feature('MESSAGE_ACTIONS') ?
   // biome-ignore lint/correctness/useHookAtTopLevel: feature() is a compile-time constant
@@ -734,7 +734,7 @@ export function REPL({
   const [showIdeOnboarding, setShowIdeOnboarding] = useState(false);
   // Dead code elimination: model switch callout state (ant-only)
   const [showModelSwitchCallout, setShowModelSwitchCallout] = useState(() => {
-    if (("external" as string) === 'ant') {
+    if ((process.env.USER_TYPE) === 'ant') {
       return shouldShowAntModelSwitch();
     }
     return false;
@@ -1013,7 +1013,7 @@ export function REPL({
   }, []);
   const [showUndercoverCallout, setShowUndercoverCallout] = useState(false);
   useEffect(() => {
-    if (("external" as string) === 'ant') {
+    if ((process.env.USER_TYPE) === 'ant') {
       void (async () => {
         // Wait for repo classification to settle (memoized, no-op if primed).
         const {
@@ -2045,10 +2045,10 @@ export function REPL({
     if (allowDialogsWithAnimation && showIdeOnboarding) return 'ide-onboarding';
 
     // Model switch callout (ant-only, eliminated from external builds)
-    if (("external" as string) === 'ant' && allowDialogsWithAnimation && showModelSwitchCallout) return 'model-switch';
+    if ((process.env.USER_TYPE) === 'ant' && allowDialogsWithAnimation && showModelSwitchCallout) return 'model-switch';
 
     // Undercover auto-enable explainer (ant-only, eliminated from external builds)
-    if (("external" as string) === 'ant' && allowDialogsWithAnimation && showUndercoverCallout) return 'undercover-callout';
+    if ((process.env.USER_TYPE) === 'ant' && allowDialogsWithAnimation && showUndercoverCallout) return 'undercover-callout';
 
     // Effort callout (shown once for Opus 4.6 users when effort is enabled)
     if (allowDialogsWithAnimation && showEffortCallout) return 'effort-callout';
@@ -2486,7 +2486,7 @@ export function REPL({
       dynamicSkillDirTriggers: new Set<string>(),
       discoveredSkillNames: discoveredSkillNamesRef.current,
       setResponseLength,
-      pushApiMetricsEntry: ("external" as string) === 'ant' ? (ttftMs: number) => {
+      pushApiMetricsEntry: (process.env.USER_TYPE) === 'ant' ? (ttftMs: number) => {
         const now = Date.now();
         const baseline = responseLengthRef.current;
         apiMetricsRef.current.push({
@@ -2815,7 +2815,7 @@ export function REPL({
 
     // Capture ant-only API metrics before resetLoadingState clears the ref.
     // For multi-request turns (tool use loops), compute P50 across all requests.
-    if (("external" as string) === 'ant' && apiMetricsRef.current.length > 0) {
+    if ((process.env.USER_TYPE) === 'ant' && apiMetricsRef.current.length > 0) {
       const entries = apiMetricsRef.current;
       const ttfts = entries.map(e => e.ttftMs);
       // Compute per-request OTPS using only active streaming time and
@@ -2943,7 +2943,7 @@ export function REPL({
         // minutes — wiping the session made the pill disappear entirely, forcing
         // the user to re-invoke Tmux just to peek. Skip on abort so the panel
         // stays open for inspection (matches the turn-duration guard below).
-        if (("external" as string) === 'ant' && !abortController.signal.aborted) {
+        if ((process.env.USER_TYPE) === 'ant' && !abortController.signal.aborted) {
           setAppState(prev => {
             if (prev.tungstenActiveSession === undefined) return prev;
             if (prev.tungstenPanelAutoHidden === true) return prev;
@@ -3066,7 +3066,7 @@ export function REPL({
       }
 
       // Atomically: clear initial message, set permission mode and rules, and store plan for verification
-      const shouldStorePlanForVerification = initialMsg.message.planContent && ("external" as string) === 'ant' && isEnvTruthy(undefined);
+      const shouldStorePlanForVerification = initialMsg.message.planContent && (process.env.USER_TYPE) === 'ant' && isEnvTruthy(undefined);
       setAppState(prev => {
         // Build and apply permission updates (mode + allowedPrompts rules)
         let updatedToolPermissionContext = initialMsg.mode ? applyPermissionUpdates(prev.toolPermissionContext, buildPermissionUpdates(initialMsg.mode, initialMsg.allowedPrompts)) : prev.toolPermissionContext;
@@ -3599,7 +3599,7 @@ export function REPL({
 
   // Handler for when user presses 1 on survey thanks screen to share details
   const handleSurveyRequestFeedback = useCallback(() => {
-    const command = ("external" as string) === 'ant' ? '/issue' : '/feedback';
+    const command = (process.env.USER_TYPE) === 'ant' ? '/issue' : '/feedback';
     onSubmit(command, {
       setCursorOffset: () => {},
       clearBuffer: () => {},
@@ -4060,7 +4060,7 @@ export function REPL({
   // - Workers receive permission responses via mailbox messages
   // - Leaders receive permission requests via mailbox messages
 
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     // Tasks mode: watch for tasks and auto-process them
     // eslint-disable-next-line react-hooks/rules-of-hooks
     // biome-ignore lint/correctness/useHookAtTopLevel: conditional for dead code elimination in external builds
@@ -4169,7 +4169,7 @@ export function REPL({
 
     // Fall back to default behavior
     const hookType = currentHooks[0]?.data.hookEvent === 'SubagentStop' ? 'subagent stop' : 'stop';
-    if (("external" as string) === 'ant') {
+    if ((process.env.USER_TYPE) === 'ant') {
       const cmd = currentHooks[completedCount]?.data.command;
       const label = cmd ? ` '${truncateToWidth(cmd, 40)}'` : '';
       return total === 1 ? `running ${hookType} hook${label}` : `running ${hookType} hook${label}\u2026 ${completedCount}/${total}`;
@@ -4578,7 +4578,7 @@ export function REPL({
               {toolJSX && !(toolJSX.isLocalJSXCommand && toolJSX.isImmediate) && !toolJsxCentered && <Box flexDirection="column" width="100%">
                     {toolJSX.jsx}
                   </Box>}
-              {("external" as string) === 'ant' && <TungstenLiveMonitor />}
+              {(process.env.USER_TYPE) === 'ant' && <TungstenLiveMonitor />}
               {feature('WEB_BROWSER_TOOL') ? WebBrowserPanelModule && <WebBrowserPanelModule.WebBrowserPanel /> : null}
               <Box flexGrow={1} />
               {showSpinner && <SpinnerWithVerb mode={streamMode} spinnerTip={spinnerTip} responseLengthRef={responseLengthRef} apiMetricsRef={apiMetricsRef} overrideMessage={spinnerMessage} spinnerSuffix={stopHookSpinnerSuffix} verbose={verbose} loadingStartTimeRef={loadingStartTimeRef} totalPausedMsRef={totalPausedMsRef} pauseStartTimeRef={pauseStartTimeRef} overrideColor={spinnerColor} overrideShimmerColor={spinnerShimmerColor} hasActiveTools={inProgressToolUseIDs.size > 0} leaderIsIdle={!isLoading} />}
@@ -4801,7 +4801,7 @@ export function REPL({
             });
           }} />}
                 {focusedInputDialog === 'ide-onboarding' && <IdeOnboardingDialog onDone={() => setShowIdeOnboarding(false)} installationStatus={ideInstallationStatus} />}
-                {("external" as string) === 'ant' && focusedInputDialog === 'model-switch' && AntModelSwitchCallout && <AntModelSwitchCallout onDone={(selection: string, modelAlias?: string) => {
+                {(process.env.USER_TYPE) === 'ant' && focusedInputDialog === 'model-switch' && AntModelSwitchCallout && <AntModelSwitchCallout onDone={(selection: string, modelAlias?: string) => {
             setShowModelSwitchCallout(false);
             if (selection === 'switch' && modelAlias) {
               setAppState(prev => ({
@@ -4811,7 +4811,7 @@ export function REPL({
               }));
             }
           }} />}
-                {("external" as string) === 'ant' && focusedInputDialog === 'undercover-callout' && UndercoverAutoCallout && <UndercoverAutoCallout onDone={() => setShowUndercoverCallout(false)} />}
+                {(process.env.USER_TYPE) === 'ant' && focusedInputDialog === 'undercover-callout' && UndercoverAutoCallout && <UndercoverAutoCallout onDone={() => setShowUndercoverCallout(false)} />}
                 {focusedInputDialog === 'effort-callout' && <EffortCallout model={mainLoopModel} onDone={selection => {
             setShowEffortCallout(false);
             if (selection !== 'dismiss') {
@@ -4894,7 +4894,7 @@ export function REPL({
                       {/* Frustration-triggered transcript sharing prompt */}
                       {frustrationDetection.state !== 'closed' && <FeedbackSurvey state={frustrationDetection.state} lastResponse={null} handleSelect={() => {}} handleTranscriptSelect={frustrationDetection.handleTranscriptSelect} inputValue={inputValue} setInputValue={setInputValue} />}
                       {/* Skill improvement survey - appears when improvements detected (ant-only) */}
-                      {("external" as string) === 'ant' && skillImprovementSurvey.suggestion && <SkillImprovementSurvey isOpen={skillImprovementSurvey.isOpen} skillName={skillImprovementSurvey.suggestion.skillName} updates={skillImprovementSurvey.suggestion.updates} handleSelect={skillImprovementSurvey.handleSelect} inputValue={inputValue} setInputValue={setInputValue} />}
+                      {(process.env.USER_TYPE) === 'ant' && skillImprovementSurvey.suggestion && <SkillImprovementSurvey isOpen={skillImprovementSurvey.isOpen} skillName={skillImprovementSurvey.suggestion.skillName} updates={skillImprovementSurvey.suggestion.updates} handleSelect={skillImprovementSurvey.handleSelect} inputValue={inputValue} setInputValue={setInputValue} />}
                       {showIssueFlagBanner && <IssueFlagBanner />}
                       {}
                       <PromptInput debug={debug} ideSelection={ideSelection} hasSuppressedDialogs={!!hasSuppressedDialogs} isLocalJSXCommandActive={isShowingLocalJSXCommand} getToolUseContext={getToolUseContext} toolPermissionContext={toolPermissionContext} setToolPermissionContext={setToolPermissionContext} apiKeyStatus={apiKeyStatus} commands={commands} agents={agentDefinitions.activeAgents} isLoading={isLoading} onExit={handleExit} verbose={verbose} messages={messages} onAutoUpdaterResult={setAutoUpdaterResult} autoUpdaterResult={autoUpdaterResult} input={inputValue} onInputChange={setInputValue} mode={inputMode} onModeChange={setInputMode} stashedPrompt={stashedPrompt} setStashedPrompt={setStashedPrompt} submitCount={submitCount} onShowMessageSelector={handleShowMessageSelector} onMessageActionsEnter={
@@ -4987,7 +4987,7 @@ export function REPL({
             setIsMessageSelectorVisible(false);
             setMessageSelectorPreselect(undefined);
           }} />}
-                {("external" as string) === 'ant' && <DevBar />}
+                {(process.env.USER_TYPE) === 'ant' && <DevBar />}
               </Box>
               {feature('BUDDY') && !(companionNarrow && isFullscreenEnvEnabled()) && companionVisible ? <CompanionSprite /> : null}
             </Box>} />

src/tools/AgentTool/AgentTool.tsx

@@ -96,7 +96,7 @@ const fullInputSchema = lazySchema(() => {
     mode: permissionModeSchema().optional().describe('Permission mode for spawned teammate (e.g., "plan" to require plan approval).')
   });
   return baseInputSchema().merge(multiAgentInputSchema).extend({
-    isolation: (("external" as string) === 'ant' ? z.enum(['worktree', 'remote']) : z.enum(['worktree'])).optional().describe(("external" as string) === 'ant' ? 'Isolation mode. "worktree" creates a temporary git worktree so the agent works on an isolated copy of the repo. "remote" launches the agent in a remote CCR environment (always runs in background).' : 'Isolation mode. "worktree" creates a temporary git worktree so the agent works on an isolated copy of the repo.'),
+    isolation: ((process.env.USER_TYPE) === 'ant' ? z.enum(['worktree', 'remote']) : z.enum(['worktree'])).optional().describe((process.env.USER_TYPE) === 'ant' ? 'Isolation mode. "worktree" creates a temporary git worktree so the agent works on an isolated copy of the repo. "remote" launches the agent in a remote CCR environment (always runs in background).' : 'Isolation mode. "worktree" creates a temporary git worktree so the agent works on an isolated copy of the repo.'),
     cwd: z.string().optional().describe('Absolute path to run the agent in. Overrides the working directory for all filesystem and shell operations within this agent. Mutually exclusive with isolation: "worktree".')
   });
 });
@@ -432,7 +432,7 @@ export const AgentTool = buildTool({
 
     // Remote isolation: delegate to CCR. Gated ant-only — the guard enables
     // dead code elimination of the entire block for external builds.
-    if (("external" as string) === 'ant' && effectiveIsolation === 'remote') {
+    if ((process.env.USER_TYPE) === 'ant' && effectiveIsolation === 'remote') {
       const eligibility = await checkRemoteAgentEligibility();
       if (!eligibility.eligible) {
         const reasons = (eligibility as { eligible: false; errors: Parameters<typeof formatPreconditionError>[0][] }).errors.map(formatPreconditionError).join('\n');
@@ -522,7 +522,7 @@ export const AgentTool = buildTool({
         // Log agent memory loaded event for subagents
         if (selectedAgent.memory) {
           logEvent('tengu_agent_memory_loaded', {
-            ...(("external" as string) === 'ant' && {
+            ...((process.env.USER_TYPE) === 'ant' && {
               agent_type: selectedAgent.agentType as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
             }),
             scope: selectedAgent.memory as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
@@ -1284,7 +1284,7 @@ export const AgentTool = buildTool({
     // Only route through auto mode classifier when in auto mode
     // In all other modes, auto-approve sub-agent generation
     // Note: "external" === 'ant' guard enables dead code elimination for external builds
-    if (("external" as string) === 'ant' && appState.toolPermissionContext.mode === 'auto') {
+    if ((process.env.USER_TYPE) === 'ant' && appState.toolPermissionContext.mode === 'auto') {
       return {
         behavior: 'passthrough',
         message: 'Agent tool requires permission to spawn sub-agents.'

src/tools/AgentTool/UI.tsx

@@ -99,7 +99,7 @@ type ProcessedMessage = {
  */
 function processProgressMessages(messages: ProgressMessage<Progress>[], tools: Tools, isAgentRunning: boolean): ProcessedMessage[] {
   // Only process for ants
-  if (("external" as string) !== 'ant') {
+  if ((process.env.USER_TYPE) !== 'ant') {
     return messages.filter((m): m is ProgressMessage<AgentToolProgress> => hasProgressMessage(m.data) && m.data.message.type !== 'user').map(m => ({
       type: 'original',
       message: m
@@ -385,7 +385,7 @@ export function renderToolResultMessage(data: Output, progressMessagesForMessage
     } as import('@anthropic-ai/sdk/resources/beta/messages/messages.mjs').BetaUsage
   });
   return <Box flexDirection="column">
-      {("external" as string) === 'ant' && <MessageResponse>
+      {(process.env.USER_TYPE) === 'ant' && <MessageResponse>
           <Text color="warning">
             [ANT-ONLY] API calls: {getDisplayPath(getDumpPromptsPath(agentId))}
           </Text>
@@ -591,7 +591,7 @@ export function renderToolUseRejectedMessage(_input: {
   const firstData = progressMessagesForMessage[0]?.data;
   const agentId = firstData && hasProgressMessage(firstData) ? firstData.agentId : undefined;
   return <>
-      {("external" as string) === 'ant' && agentId && <MessageResponse>
+      {(process.env.USER_TYPE) === 'ant' && agentId && <MessageResponse>
           <Text color="warning">
             [ANT-ONLY] API calls: {getDisplayPath(getDumpPromptsPath(agentId))}
           </Text>

src/tools/TaskOutputTool/TaskOutputTool.tsx

@@ -161,7 +161,7 @@ export const TaskOutputTool: Tool<InputSchema, TaskOutputToolOutput> = buildTool
     return this.isReadOnly?.(_input) ?? false;
   },
   isEnabled() {
-    return ("external" as string) !== 'ant';
+    return (process.env.USER_TYPE) !== 'ant';
   },
   isReadOnly(_input) {
     return true;

src/tools/TaskStopTool/UI.tsx

@@ -25,7 +25,7 @@ export function renderToolResultMessage(output: Output, _progressMessagesForMess
 }: {
   verbose: boolean;
 }): React.ReactNode {
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     return null;
   }
   const rawCommand = output.command ?? '';

src/utils/autoRunIssue.tsx

@@ -81,7 +81,7 @@ export type AutoRunIssueReason = 'feedback_survey_bad' | 'feedback_survey_good';
  */
 export function shouldAutoRunIssue(reason: AutoRunIssueReason): boolean {
   // Only for Ant users
-  if (("external" as string) !== 'ant') {
+  if ((process.env.USER_TYPE) !== 'ant') {
     return false;
   }
   switch (reason) {
@@ -100,7 +100,7 @@ export function shouldAutoRunIssue(reason: AutoRunIssueReason): boolean {
  */
 export function getAutoRunCommand(reason: AutoRunIssueReason): string {
   // Only ant builds have the /good-claude command
-  if (("external" as string) === 'ant' && reason === 'feedback_survey_good') {
+  if ((process.env.USER_TYPE) === 'ant' && reason === 'feedback_survey_good') {
     return '/good-claude';
   }
   return '/issue';

src/utils/processUserInput/processSlashCommand.tsx

@@ -273,7 +273,7 @@ async function executeForkedSlashCommand(command: CommandBase & PromptCommand, a
   logForDebugging(`Forked slash command /${command.name} completed with agent ${agentId}`);
 
   // Prepend debug log for ant users so it appears inside the command output
-  if (("external" as string) === 'ant') {
+  if ((process.env.USER_TYPE) === 'ant') {
     resultText = `[ANT-ONLY] API calls: ${getDisplayPath(getDumpPromptsPath(agentId))}\n${resultText}`;
   }
 
@@ -427,7 +427,7 @@ export async function processSlashCommand(inputString: string, precedingInputBlo
     logEvent('tengu_input_command', {
       ...eventData,
       invocation_trigger: 'user-slash' as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
-      ...(("external" as string) === 'ant' && {
+      ...((process.env.USER_TYPE) === 'ant' && {
         skill_name: commandName as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
         ...(returnedCommand.type === 'prompt' && {
           skill_source: returnedCommand.source as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
@@ -495,7 +495,7 @@ export async function processSlashCommand(inputString: string, precedingInputBlo
   logEvent('tengu_input_command', {
     ...eventData,
     invocation_trigger: 'user-slash' as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
-    ...(("external" as string) === 'ant' && {
+    ...((process.env.USER_TYPE) === 'ant' && {
       skill_name: commandName as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
       ...(returnedCommand.type === 'prompt' && {
         skill_source: returnedCommand.source as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS

src/utils/status.tsx

@@ -26,7 +26,7 @@ export type Property = {
 };
 export type Diagnostic = React.ReactNode;
 export function buildSandboxProperties(): Property[] {
-  if (("external" as string) !== 'ant') {
+  if ((process.env.USER_TYPE) !== 'ant') {
     return [];
   }
   const isSandboxed = SandboxManager.isSandboxingEnabled();