feat: add file tabs and improve terminal rendering with WebGL

package-lock.json

@@ -6434,6 +6434,7 @@
       ],
       "dev": true,
       "license": "Apache-2.0 OR MIT",
+      "optional": true,
       "os": [
         "linux"
       ],
@@ -7210,6 +7211,18 @@
       "integrity": "sha512-jYcgT6xtVYhnhgxh3QgYDnnNMYTcf8ElbxxFzX0IZo+vabQqSPAjC3c1wJrKB5E19VwQei89QCiZZP86DCPF7g==",
       "license": "MIT"
     },
+    "node_modules/@xterm/addon-unicode11": {
+      "version": "0.9.0",
+      "resolved": "https://registry.npmjs.org/@xterm/addon-unicode11/-/addon-unicode11-0.9.0.tgz",
+      "integrity": "sha512-FxDnYcyuXhNl+XSqGZL/t0U9eiNb/q3EWT5rYkQT/zuig8Gz/VagnQANKHdDWFM2lTMk9ly0EFQxxxtZUoRetw==",
+      "license": "MIT"
+    },
+    "node_modules/@xterm/addon-webgl": {
+      "version": "0.19.0",
+      "resolved": "https://registry.npmjs.org/@xterm/addon-webgl/-/addon-webgl-0.19.0.tgz",
+      "integrity": "sha512-b3fMOsyLVuCeNJWxolACEUED0vm7qC0cy4wRvf3oURSzDTYVQiGPhTnhWZwIHdvC48Y+oLhvYXnY4XDXPoJo6A==",
+      "license": "MIT"
+    },
     "node_modules/@xterm/headless": {
       "version": "6.0.0",
       "license": "MIT",
@@ -21586,6 +21599,8 @@
         "@tanstack/react-query": "^5.90.11",
         "@tauri-apps/api": "^2.9.1",
         "@xterm/addon-fit": "^0.11.0",
+        "@xterm/addon-unicode11": "^0.9.0",
+        "@xterm/addon-webgl": "^0.19.0",
         "@xterm/xterm": "^6.0.0",
         "base64-js": "^1.5.1",
         "buffer": "^6.0.3",
@@ -21726,8 +21741,7 @@
       "name": "@getpaseo/desktop",
       "version": "0.1.16",
       "devDependencies": {
-        "@tauri-apps/cli": "^2.9.6",
-        "@tauri-apps/cli-linux-x64-gnu": "^2.9.6"
+        "@tauri-apps/cli": "^2.9.6"
       }
     },
     "packages/relay": {

packages/app/package.json

@@ -52,6 +52,8 @@
     "@tanstack/react-query": "^5.90.11",
     "@tauri-apps/api": "^2.9.1",
     "@xterm/addon-fit": "^0.11.0",
+    "@xterm/addon-unicode11": "^0.9.0",
+    "@xterm/addon-webgl": "^0.19.0",
     "@xterm/xterm": "^6.0.0",
     "base64-js": "^1.5.1",
     "buffer": "^6.0.3",

packages/app/src/app/h/[serverId]/workspace/[workspaceId]/file/[fileId].tsx

@@ -0,0 +1,23 @@
+import { useLocalSearchParams } from "expo-router";
+import { WorkspaceScreen } from "@/screens/workspace/workspace-screen";
+import { decodeFilePathFromPathSegment } from "@/utils/host-routes";
+
+export default function HostWorkspaceFileRoute() {
+  const params = useLocalSearchParams<{
+    serverId?: string;
+    workspaceId?: string;
+    fileId?: string;
+  }>();
+
+  const fileId = typeof params.fileId === "string" ? params.fileId : "";
+  const filePath = fileId ? decodeFilePathFromPathSegment(fileId) ?? "" : "";
+
+  return (
+    <WorkspaceScreen
+      serverId={typeof params.serverId === "string" ? params.serverId : ""}
+      workspaceId={typeof params.workspaceId === "string" ? params.workspaceId : ""}
+      routeTab={filePath ? { kind: "file", path: filePath } : null}
+    />
+  );
+}
+

packages/app/src/components/agent-stream-view.tsx

@@ -29,6 +29,7 @@ import Markdown from "react-native-markdown-display";
 import { useSafeAreaInsets } from "react-native-safe-area-context";
 import { StyleSheet, UnistylesRuntime, useUnistyles } from "react-native-unistyles";
 import { useMutation } from "@tanstack/react-query";
+import { useRouter } from "expo-router";
 import Animated, {
   FadeIn,
   FadeOut,
@@ -81,6 +82,7 @@ import { createMarkdownStyles } from "@/styles/markdown-styles";
 import { MAX_CONTENT_WIDTH } from "@/constants/layout";
 import { isPerfLoggingEnabled, measurePayload, perfLog } from "@/utils/perf";
 import { getMarkdownListMarker } from "@/utils/markdown-list";
+import { buildHostWorkspaceFileRoute } from "@/utils/host-routes";
 
 const isUserMessageItem = (item?: StreamItem) => item?.kind === "user_message";
 const isToolSequenceItem = (item?: StreamItem) =>
@@ -129,6 +131,7 @@ export const AgentStreamView = forwardRef<AgentStreamViewHandle, AgentStreamView
   const scrollViewRef = useRef<ScrollView>(null);
   const bottomAnchorRef = useRef<View>(null);
   const { theme } = useUnistyles();
+  const router = useRouter();
   const isMobile =
     UnistylesRuntime.breakpoint === "xs" || UnistylesRuntime.breakpoint === "sm";
   const streamRenderStrategy = useMemo(
@@ -174,13 +177,12 @@ export const AgentStreamView = forwardRef<AgentStreamViewHandle, AgentStreamView
   );
 
   const workspaceRoot = agent.cwd?.trim() || "";
-  const workspaceId = agent.projectPlacement?.checkout?.cwd ?? workspaceRoot;
-  const { requestDirectoryListing, requestFilePreview, selectExplorerEntry } =
-    useFileExplorerActions({
-      serverId: resolvedServerId,
-      workspaceId,
-      workspaceRoot,
-    });
+  const workspaceId = agent.projectPlacement?.checkout?.cwd?.trim() || workspaceRoot;
+  const { requestDirectoryListing } = useFileExplorerActions({
+    serverId: resolvedServerId,
+    workspaceId,
+    workspaceRoot,
+  });
   // Keep entry/exit animations off on Android due to RN dispatchDraw crashes
   // tracked in react-native-reanimated#8422.
   const shouldDisableEntryExitAnimations = Platform.OS === "android";
@@ -210,14 +212,20 @@ export const AgentStreamView = forwardRef<AgentStreamViewHandle, AgentStreamView
         return;
       }
 
+      if (normalized.file) {
+        const route = buildHostWorkspaceFileRoute(
+          resolvedServerId,
+          workspaceId,
+          normalized.file
+        );
+        router.replace(route as any);
+        return;
+      }
+
       void requestDirectoryListing(normalized.directory, {
         recordHistory: false,
         setCurrentPath: false,
       });
-      if (normalized.file) {
-        selectExplorerEntry(normalized.file);
-        void requestFilePreview(normalized.file);
-      }
 
       setExplorerTabForCheckout({
         serverId: resolvedServerId,
@@ -229,11 +237,12 @@ export const AgentStreamView = forwardRef<AgentStreamViewHandle, AgentStreamView
     },
     [
       agent.cwd,
-      requestDirectoryListing,
-      requestFilePreview,
-      selectExplorerEntry,
-      setExplorerTabForCheckout,
       openFileExplorer,
+      requestDirectoryListing,
+      resolvedServerId,
+      router,
+      setExplorerTabForCheckout,
+      workspaceId,
     ]
   );
 

packages/app/src/components/draggable-list.web.tsx

@@ -74,7 +74,13 @@ function SortableItem<T>({
     // Trigger drag - handled by dnd-kit's listeners
   };
 
-  const baseTransform = CSS.Transform.toString(transform);
+  // dnd-kit can set `scaleX/scaleY` on the active item when dragging over a
+  // differently-sized droppable. For variable-height rows this can look like
+  // the "ghost" stretches. Keep the dragged item's size stable by zeroing
+  // out the dnd-kit scaling component.
+  const baseTransform = CSS.Transform.toString(
+    transform && isDragging ? { ...transform, scaleX: 1, scaleY: 1 } : transform
+  );
   const scaleTransform = isDragging ? "scale(1.02)" : "";
   const combinedTransform = [baseTransform, scaleTransform].filter(Boolean).join(" ");
 

packages/app/src/components/explorer-sidebar.tsx

@@ -37,6 +37,7 @@ interface ExplorerSidebarProps {
   workspaceId?: string | null;
   workspaceRoot: string;
   isGit: boolean;
+  onOpenFile?: (filePath: string) => void;
 }
 
 export function ExplorerSidebar({
@@ -44,6 +45,7 @@ export function ExplorerSidebar({
   workspaceId,
   workspaceRoot,
   isGit,
+  onOpenFile,
 }: ExplorerSidebarProps) {
   const { theme } = useUnistyles();
   const isScreenFocused = useIsFocused();
@@ -289,6 +291,7 @@ export function ExplorerSidebar({
               workspaceRoot={workspaceRoot}
               isGit={isGit}
               isMobile={isMobile}
+              onOpenFile={onOpenFile}
             />
           </Animated.View>
         </GestureDetector>
@@ -324,6 +327,7 @@ export function ExplorerSidebar({
         workspaceRoot={workspaceRoot}
         isGit={isGit}
         isMobile={false}
+        onOpenFile={onOpenFile}
       />
     </Animated.View>
   );
@@ -338,6 +342,7 @@ interface SidebarContentProps {
   workspaceRoot: string;
   isGit: boolean;
   isMobile: boolean;
+  onOpenFile?: (filePath: string) => void;
 }
 
 function SidebarContent({
@@ -349,6 +354,7 @@ function SidebarContent({
   workspaceRoot,
   isGit,
   isMobile,
+  onOpenFile,
 }: SidebarContentProps) {
   const { theme } = useUnistyles();
   const resolvedTab: ExplorerTab =
@@ -413,6 +419,7 @@ function SidebarContent({
             serverId={serverId}
             workspaceId={workspaceId}
             workspaceRoot={workspaceRoot}
+            onOpenFile={onOpenFile}
           />
         )}
       </View>

packages/app/src/components/file-explorer-pane.tsx

@@ -3,18 +3,16 @@ import { useQuery } from "@tanstack/react-query";
 import {
   ActivityIndicator,
   FlatList,
-  Image as RNImage,
   ListRenderItemInfo,
   type LayoutChangeEvent,
   type NativeScrollEvent,
   type NativeSyntheticEvent,
   Pressable,
-  ScrollView as RNScrollView,
   Text,
   View,
   Platform,
 } from "react-native";
-import { ScrollView, Gesture, GestureDetector } from "react-native-gesture-handler";
+import { Gesture } from "react-native-gesture-handler";
 import { StyleSheet, UnistylesRuntime, useUnistyles } from "react-native-unistyles";
 import Animated, {
   cancelAnimation,
@@ -27,11 +25,6 @@ import Animated, {
 } from "react-native-reanimated";
 import { Fonts } from "@/constants/theme";
 import * as Clipboard from "expo-clipboard";
-import {
-  BottomSheetModal,
-  BottomSheetScrollView,
-  BottomSheetBackdrop,
-} from "@gorhom/bottom-sheet";
 import {
   Copy,
   Download,
@@ -47,7 +40,6 @@ import {
 import type {
   AgentFileExplorerState,
   ExplorerEntry,
-  ExplorerFile,
 } from "@/stores/session-store";
 import { useDaemonRegistry } from "@/contexts/daemon-registry-context";
 import { useSessionStore } from "@/stores/session-store";
@@ -63,7 +55,6 @@ import { useFileExplorerActions } from "@/hooks/use-file-explorer-actions";
 import { buildWorkspaceExplorerStateKey } from "@/hooks/use-file-explorer-actions";
 import {
   usePanelStore,
-  DEFAULT_EXPLORER_FILES_SPLIT_RATIO,
   type SortOption,
 } from "@/stores/panel-store";
 import { formatTimeAgo } from "@/utils/time";
@@ -80,10 +71,21 @@ const SORT_OPTIONS: { value: SortOption; label: string }[] = [
 
 const INDENT_PER_LEVEL = 12;
 
+function formatFileSize({ size }: { size: number }): string {
+  if (size < 1024) {
+    return `${size} B`;
+  }
+  if (size < 1024 * 1024) {
+    return `${(size / 1024).toFixed(1)} KB`;
+  }
+  return `${(size / (1024 * 1024)).toFixed(1)} MB`;
+}
+
 interface FileExplorerPaneProps {
   serverId: string;
   workspaceId?: string | null;
   workspaceRoot: string;
+  onOpenFile?: (filePath: string) => void;
 }
 
 interface TreeRow {
@@ -95,6 +97,7 @@ export function FileExplorerPane({
   serverId,
   workspaceId,
   workspaceRoot,
+  onOpenFile,
 }: FileExplorerPaneProps) {
   const { theme } = useUnistyles();
   const isMobile =
@@ -132,7 +135,6 @@ export function FileExplorerPane({
   const {
     workspaceStateKey: actionsWorkspaceStateKey,
     requestDirectoryListing,
-    requestFilePreview,
     requestFileDownloadToken,
     selectExplorerEntry,
   } = useFileExplorerActions({
@@ -142,23 +144,13 @@ export function FileExplorerPane({
   });
   const sortOption = usePanelStore((state) => state.explorerSortOption);
   const setSortOption = usePanelStore((state) => state.setExplorerSortOption);
-  const splitRatio = usePanelStore((state) => state.explorerFilesSplitRatio);
-  const setSplitRatio = usePanelStore((state) => state.setExplorerFilesSplitRatio);
 
   const directories = explorerState?.directories ?? new Map();
-  const files = explorerState?.files ?? new Map();
   const pendingRequest = explorerState?.pendingRequest ?? null;
   const isExplorerLoading = explorerState?.isLoading ?? false;
   const error = explorerState?.lastError ?? null;
   const selectedEntryPath = explorerState?.selectedEntryPath ?? null;
 
-  const preview = selectedEntryPath ? files.get(selectedEntryPath) : null;
-  const isPreviewLoading = Boolean(
-    isExplorerLoading &&
-      pendingRequest?.mode === "file" &&
-      pendingRequest?.path === selectedEntryPath
-  );
-
   const isDirectoryLoading = useCallback(
     (path: string) =>
       Boolean(
@@ -168,15 +160,9 @@ export function FileExplorerPane({
   );
 
   const [expandedPaths, setExpandedPaths] = useState<Set<string>>(() => new Set(["."]));
-  const [containerWidth, setContainerWidth] = useState(0);
-  const wasInlinePreviewVisibleRef = useRef(false);
   const treeListRef = useRef<FlatList<TreeRow>>(null);
   const treeScrollbarMetrics = useWebDesktopScrollbarMetrics();
 
-  // Bottom sheet for file preview (mobile)
-  const previewSheetRef = useRef<BottomSheetModal>(null);
-  const previewSnapPoints = useMemo(() => ["70%", "95%"], []);
-
   const hasInitializedRef = useRef(false);
 
   useEffect(() => {
@@ -222,22 +208,6 @@ export function FileExplorerPane({
     });
   }, [directories, hasWorkspaceScope, requestDirectoryListing, selectedEntryPath]);
 
-  // Open/close preview sheet based on selection
-  useEffect(() => {
-    if (!isMobile) {
-      return;
-    }
-    if (selectedEntryPath) {
-      previewSheetRef.current?.present();
-    } else {
-      previewSheetRef.current?.dismiss();
-    }
-  }, [isMobile, selectedEntryPath]);
-
-  const handleClosePreview = useCallback(() => {
-    selectExplorerEntry(null);
-  }, [selectExplorerEntry]);
-
   const handleToggleDirectory = useCallback(
     (entry: ExplorerEntry) => {
       if (!hasWorkspaceScope) {
@@ -272,9 +242,9 @@ export function FileExplorerPane({
         return;
       }
       selectExplorerEntry(entry.path);
-      void requestFilePreview(entry.path);
+      onOpenFile?.(entry.path);
     },
-    [hasWorkspaceScope, requestFilePreview, selectExplorerEntry]
+    [hasWorkspaceScope, onOpenFile, selectExplorerEntry]
   );
 
   const handleEntryPress = useCallback(
@@ -342,7 +312,6 @@ export function FileExplorerPane({
             setCurrentPath: false,
           })
         ),
-        ...(selectedEntryPath ? [requestFilePreview(selectedEntryPath)] : []),
       ]);
       return null;
     },
@@ -420,93 +389,6 @@ export function FileExplorerPane({
     [explorerState]
   );
 
-  const shouldShowInlinePreview = !isMobile && Boolean(selectedEntryPath);
-  const minTreeWidth = 220;
-  const minPreviewWidth = 320;
-
-  const safeSplitRatio = Number.isFinite(splitRatio)
-    ? splitRatio
-    : DEFAULT_EXPLORER_FILES_SPLIT_RATIO;
-
-  const splitAvailableWidth = useSharedValue(0);
-  const splitMaxTreeWidth = useSharedValue(minTreeWidth);
-  const splitTreeWidth = useSharedValue(minTreeWidth);
-  const splitStartTreeWidth = useSharedValue(minTreeWidth);
-
-  useEffect(() => {
-    if (!shouldShowInlinePreview) {
-      wasInlinePreviewVisibleRef.current = false;
-      return;
-    }
-    if (containerWidth <= 0) {
-      return;
-    }
-
-    const available = Math.max(0, containerWidth);
-    const maxTree = Math.max(minTreeWidth, available - minPreviewWidth);
-    const isOpeningInlinePreview = !wasInlinePreviewVisibleRef.current;
-    const desired = isOpeningInlinePreview
-      ? Math.round(available * safeSplitRatio)
-      : splitTreeWidth.value;
-    const clamped = Math.max(minTreeWidth, Math.min(maxTree, desired));
-
-    splitAvailableWidth.value = available;
-    splitMaxTreeWidth.value = maxTree;
-    splitTreeWidth.value = clamped;
-    wasInlinePreviewVisibleRef.current = true;
-  }, [
-    containerWidth,
-    minPreviewWidth,
-    minTreeWidth,
-    safeSplitRatio,
-    shouldShowInlinePreview,
-    splitAvailableWidth,
-    splitMaxTreeWidth,
-    splitTreeWidth,
-  ]);
-
-  const treePaneAnimatedStyle = useAnimatedStyle(() => ({
-    width: splitTreeWidth.value,
-    flexBasis: splitTreeWidth.value,
-    flexGrow: 0,
-    flexShrink: 0,
-  }));
-
-  const splitResizeGesture = useMemo(() => {
-    if (isMobile || !shouldShowInlinePreview) {
-      return Gesture.Pan().enabled(false);
-    }
-
-    return Gesture.Pan()
-      .hitSlop({ left: 12, right: 12, top: 0, bottom: 0 })
-      .onStart(() => {
-        splitStartTreeWidth.value = splitTreeWidth.value;
-      })
-      .onUpdate((event) => {
-        const nextWidth = splitStartTreeWidth.value - event.translationX;
-        const clamped = Math.max(
-          minTreeWidth,
-          Math.min(splitMaxTreeWidth.value, nextWidth)
-        );
-        splitTreeWidth.value = clamped;
-      })
-      .onEnd(() => {
-        const available = splitAvailableWidth.value;
-        const ratio = available > 0 ? splitTreeWidth.value / available : safeSplitRatio;
-        runOnJS(setSplitRatio)(ratio);
-      });
-  }, [
-    isMobile,
-    minTreeWidth,
-    safeSplitRatio,
-    setSplitRatio,
-    shouldShowInlinePreview,
-    splitAvailableWidth,
-    splitMaxTreeWidth,
-    splitStartTreeWidth,
-    splitTreeWidth,
-  ]);
-
   const renderTreeRow = useCallback(
     ({ item }: ListRenderItemInfo<TreeRow>) => {
       const entry = item.entry;
@@ -606,27 +488,6 @@ export function FileExplorerPane({
     ]
   );
 
-  const handlePreviewSheetChange = useCallback(
-    (index: number) => {
-      if (index === -1) {
-        handleClosePreview();
-      }
-    },
-    [handleClosePreview]
-  );
-
-  const renderPreviewBackdrop = useCallback(
-    (props: React.ComponentProps<typeof BottomSheetBackdrop>) => (
-      <BottomSheetBackdrop
-        {...props}
-        disappearsOnIndex={-1}
-        appearsOnIndex={0}
-        opacity={0.5}
-      />
-    ),
-    []
-  );
-
   const handleBackFromError = useCallback(() => {
     if (!hasWorkspaceScope) {
       return;
@@ -667,7 +528,6 @@ export function FileExplorerPane({
   return (
     <View
       style={styles.container}
-      onLayout={(event) => setContainerWidth(event.nativeEvent.layout.width)}
     >
       {error ? (
         <View style={styles.centerState}>
@@ -701,385 +561,66 @@ export function FileExplorerPane({
           <Text style={styles.emptyText}>No files</Text>
         </View>
       ) : (
-        <View style={styles.desktopSplit}>
-          {shouldShowInlinePreview ? (
-            <View style={styles.previewPane}>
-              <View style={styles.paneHeader} testID="preview-pane-header">
-                <Text style={styles.previewHeaderText} numberOfLines={1}>
-                  {selectedEntryPath?.split("/").pop() ?? "Preview"}
-                </Text>
-                <View style={styles.previewHeaderRight}>
-                  {isPreviewLoading ? (
-                    <ActivityIndicator size="small" color={theme.colors.foregroundMuted} />
-                  ) : null}
-                  <Pressable
-                    onPress={handleClosePreview}
-                    hitSlop={8}
-                    style={({ hovered, pressed }) => [
-                      styles.iconButton,
-                      (hovered || pressed) && styles.iconButtonHovered,
-                    ]}
-                    accessibilityRole="button"
-                    accessibilityLabel="Close preview"
-                  >
-                    <X size={16} color={theme.colors.foregroundMuted} />
-                  </Pressable>
-                </View>
-              </View>
-
-              <FilePreviewBody
-                preview={preview}
-                isLoading={isPreviewLoading}
-                variant="inline"
-                showDesktopWebScrollbar={showDesktopWebScrollbar}
-              />
+        <View style={[styles.treePane, styles.treePaneFill]}>
+          <View style={styles.paneHeader} testID="files-pane-header">
+            <View style={styles.paneHeaderLeft} />
+            <View style={styles.paneHeaderRight}>
+              <Pressable
+                onPress={handleRefresh}
+                disabled={isRefreshFetching}
+                hitSlop={8}
+                style={({ hovered, pressed }) => [
+                  styles.iconButton,
+                  (hovered || pressed) && styles.iconButtonHovered,
+                  pressed && styles.iconButtonPressed,
+                ]}
+                accessibilityRole="button"
+                accessibilityLabel="Refresh files"
+              >
+                <Animated.View style={[styles.refreshIcon, refreshIconAnimatedStyle]}>
+                  <RotateCw size={16} color={theme.colors.foregroundMuted} />
+                </Animated.View>
+              </Pressable>
+              <Pressable style={styles.sortButton} onPress={handleSortCycle}>
+                <Text style={styles.sortButtonText}>{currentSortLabel}</Text>
+              </Pressable>
             </View>
-          ) : null}
-
-          {shouldShowInlinePreview ? (
-            <Animated.View
-              style={[
-                styles.treePane,
-                styles.treePaneWithPreview,
-                { minWidth: minTreeWidth },
-                treePaneAnimatedStyle,
-              ]}
-            >
-              <GestureDetector gesture={splitResizeGesture}>
-                <View
-                  style={[
-                    styles.splitResizeHandle,
-                    Platform.OS === "web" && ({ cursor: "col-resize" } as any),
-                    Platform.OS === "web" && ({ touchAction: "none", userSelect: "none" } as any),
-                  ]}
-                />
-              </GestureDetector>
-              <View style={styles.paneHeader} testID="files-pane-header">
-                <View style={styles.paneHeaderLeft} />
-                <View style={styles.paneHeaderRight}>
-                  <Pressable
-                    onPress={handleRefresh}
-                    disabled={isRefreshFetching}
-                    hitSlop={8}
-                    style={({ hovered, pressed }) => [
-                      styles.iconButton,
-                      (hovered || pressed) && styles.iconButtonHovered,
-                      pressed && styles.iconButtonPressed,
-                    ]}
-                    accessibilityRole="button"
-                    accessibilityLabel="Refresh files"
-                  >
-                    <Animated.View style={[styles.refreshIcon, refreshIconAnimatedStyle]}>
-                      <RotateCw size={16} color={theme.colors.foregroundMuted} />
-                    </Animated.View>
-                  </Pressable>
-                  <Pressable style={styles.sortButton} onPress={handleSortCycle}>
-                    <Text style={styles.sortButtonText}>{currentSortLabel}</Text>
-                  </Pressable>
-                </View>
-              </View>
-              <FlatList
-                ref={treeListRef}
-                style={styles.treeList}
-                data={treeRows}
-                renderItem={renderTreeRow}
-                keyExtractor={(row) => row.entry.path}
-                testID="file-explorer-tree-scroll"
-                contentContainerStyle={styles.entriesContent}
-                onLayout={
-                  showDesktopWebScrollbar ? handleTreeListLayout : undefined
-                }
-                onScroll={
-                  showDesktopWebScrollbar ? handleTreeListScroll : undefined
-                }
-                onContentSizeChange={
-                  showDesktopWebScrollbar
-                    ? treeScrollbarMetrics.onContentSizeChange
-                    : undefined
-                }
-                scrollEventThrottle={showDesktopWebScrollbar ? 16 : undefined}
-                showsVerticalScrollIndicator={!showDesktopWebScrollbar}
-                initialNumToRender={24}
-                maxToRenderPerBatch={40}
-                windowSize={12}
-              />
-              <WebDesktopScrollbarOverlay
-                enabled={showDesktopWebScrollbar}
-                metrics={treeScrollbarMetrics}
-                onScrollToOffset={(nextOffset) => {
-                  treeListRef.current?.scrollToOffset({
-                    offset: nextOffset,
-                    animated: false,
-                  });
-                }}
-              />
-            </Animated.View>
-          ) : (
-            <View style={[styles.treePane, styles.treePaneFill]}>
-              <View style={styles.paneHeader} testID="files-pane-header">
-                <View style={styles.paneHeaderLeft} />
-                <View style={styles.paneHeaderRight}>
-                  <Pressable
-                    onPress={handleRefresh}
-                    disabled={isRefreshFetching}
-                    hitSlop={8}
-                    style={({ hovered, pressed }) => [
-                      styles.iconButton,
-                      (hovered || pressed) && styles.iconButtonHovered,
-                      pressed && styles.iconButtonPressed,
-                    ]}
-                    accessibilityRole="button"
-                    accessibilityLabel="Refresh files"
-                  >
-                    <Animated.View style={[styles.refreshIcon, refreshIconAnimatedStyle]}>
-                      <RotateCw size={16} color={theme.colors.foregroundMuted} />
-                    </Animated.View>
-                  </Pressable>
-                  <Pressable style={styles.sortButton} onPress={handleSortCycle}>
-                    <Text style={styles.sortButtonText}>{currentSortLabel}</Text>
-                  </Pressable>
-                </View>
-              </View>
-              <FlatList
-                ref={treeListRef}
-                style={styles.treeList}
-                data={treeRows}
-                renderItem={renderTreeRow}
-                keyExtractor={(row) => row.entry.path}
-                testID="file-explorer-tree-scroll"
-                contentContainerStyle={styles.entriesContent}
-                onLayout={
-                  showDesktopWebScrollbar ? handleTreeListLayout : undefined
-                }
-                onScroll={
-                  showDesktopWebScrollbar ? handleTreeListScroll : undefined
-                }
-                onContentSizeChange={
-                  showDesktopWebScrollbar
-                    ? treeScrollbarMetrics.onContentSizeChange
-                    : undefined
-                }
-                scrollEventThrottle={showDesktopWebScrollbar ? 16 : undefined}
-                showsVerticalScrollIndicator={!showDesktopWebScrollbar}
-                initialNumToRender={24}
-                maxToRenderPerBatch={40}
-                windowSize={12}
-              />
-              <WebDesktopScrollbarOverlay
-                enabled={showDesktopWebScrollbar}
-                metrics={treeScrollbarMetrics}
-                onScrollToOffset={(nextOffset) => {
-                  treeListRef.current?.scrollToOffset({
-                    offset: nextOffset,
-                    animated: false,
-                  });
-                }}
-              />
-            </View>
-          )}
+          </View>
+          <FlatList
+            ref={treeListRef}
+            style={styles.treeList}
+            data={treeRows}
+            renderItem={renderTreeRow}
+            keyExtractor={(row) => row.entry.path}
+            testID="file-explorer-tree-scroll"
+            contentContainerStyle={styles.entriesContent}
+            onLayout={showDesktopWebScrollbar ? handleTreeListLayout : undefined}
+            onScroll={showDesktopWebScrollbar ? handleTreeListScroll : undefined}
+            onContentSizeChange={
+              showDesktopWebScrollbar ? treeScrollbarMetrics.onContentSizeChange : undefined
+            }
+            scrollEventThrottle={showDesktopWebScrollbar ? 16 : undefined}
+            showsVerticalScrollIndicator={!showDesktopWebScrollbar}
+            initialNumToRender={24}
+            maxToRenderPerBatch={40}
+            windowSize={12}
+          />
+          <WebDesktopScrollbarOverlay
+            enabled={showDesktopWebScrollbar}
+            metrics={treeScrollbarMetrics}
+            onScrollToOffset={(nextOffset) => {
+              treeListRef.current?.scrollToOffset({
+                offset: nextOffset,
+                animated: false,
+              });
+            }}
+          />
         </View>
       )}
-
-      {isMobile ? (
-        <BottomSheetModal
-          ref={previewSheetRef}
-          snapPoints={previewSnapPoints}
-          index={0}
-          enableDynamicSizing={false}
-          onChange={handlePreviewSheetChange}
-          backdropComponent={renderPreviewBackdrop}
-          enablePanDownToClose
-          backgroundStyle={styles.sheetBackground}
-          handleIndicatorStyle={styles.handleIndicator}
-        >
-          <View style={styles.sheetHeader}>
-            <Text style={styles.sheetTitle} numberOfLines={1}>
-              {selectedEntryPath?.split("/").pop() ?? "Preview"}
-            </Text>
-            <Pressable onPress={handleClosePreview} style={styles.sheetCloseButton}>
-              <X size={20} color={theme.colors.foregroundMuted} />
-            </Pressable>
-          </View>
-          <FilePreviewBody
-            preview={preview}
-            isLoading={isPreviewLoading}
-            variant="sheet"
-            showDesktopWebScrollbar={false}
-          />
-        </BottomSheetModal>
-      ) : null}
     </View>
   );
 }
 
-function FilePreviewBody({
-  preview,
-  isLoading,
-  variant,
-  showDesktopWebScrollbar,
-}: {
-  preview: ExplorerFile | null;
-  isLoading: boolean;
-  variant: "inline" | "sheet";
-  showDesktopWebScrollbar: boolean;
-}) {
-  const enablePreviewDesktopScrollbar =
-    variant === "inline" && showDesktopWebScrollbar;
-  const previewScrollRef = useRef<RNScrollView>(null);
-  const previewScrollbarMetrics = useWebDesktopScrollbarMetrics();
-
-  const handlePreviewScroll = useCallback(
-    (event: NativeSyntheticEvent<NativeScrollEvent>) => {
-      if (enablePreviewDesktopScrollbar) {
-        previewScrollbarMetrics.onScroll(event);
-      }
-    },
-    [enablePreviewDesktopScrollbar, previewScrollbarMetrics]
-  );
-
-  const handlePreviewLayout = useCallback(
-    (event: LayoutChangeEvent) => {
-      if (enablePreviewDesktopScrollbar) {
-        previewScrollbarMetrics.onLayout(event);
-      }
-    },
-    [enablePreviewDesktopScrollbar, previewScrollbarMetrics]
-  );
-
-  if (isLoading && !preview) {
-    return (
-      <View style={styles.sheetCenterState}>
-        <ActivityIndicator size="small" />
-        <Text style={styles.loadingText}>Loading file…</Text>
-      </View>
-    );
-  }
-
-  if (!preview) {
-    return (
-      <View style={styles.sheetCenterState}>
-        <Text style={styles.emptyText}>No preview available</Text>
-      </View>
-    );
-  }
-
-  if (preview.kind === "text") {
-    if (variant === "sheet") {
-      return (
-        <BottomSheetScrollView style={styles.previewContent}>
-          <ScrollView
-            horizontal
-            nestedScrollEnabled
-            showsHorizontalScrollIndicator
-            contentContainerStyle={styles.previewCodeScrollContent}
-          >
-            <Text style={styles.codeText}>{preview.content}</Text>
-          </ScrollView>
-        </BottomSheetScrollView>
-      );
-    }
-    return (
-      <View style={styles.previewScrollContainer}>
-        <RNScrollView
-          ref={previewScrollRef}
-          style={styles.previewContent}
-          onLayout={enablePreviewDesktopScrollbar ? handlePreviewLayout : undefined}
-          onScroll={enablePreviewDesktopScrollbar ? handlePreviewScroll : undefined}
-          onContentSizeChange={
-            enablePreviewDesktopScrollbar
-              ? previewScrollbarMetrics.onContentSizeChange
-              : undefined
-          }
-          scrollEventThrottle={enablePreviewDesktopScrollbar ? 16 : undefined}
-          showsVerticalScrollIndicator={!enablePreviewDesktopScrollbar}
-        >
-          <RNScrollView
-            horizontal
-            nestedScrollEnabled
-            showsHorizontalScrollIndicator
-            contentContainerStyle={styles.previewCodeScrollContent}
-          >
-            <Text style={styles.codeText}>{preview.content}</Text>
-          </RNScrollView>
-        </RNScrollView>
-        <WebDesktopScrollbarOverlay
-          enabled={enablePreviewDesktopScrollbar}
-          metrics={previewScrollbarMetrics}
-          onScrollToOffset={(nextOffset) => {
-            previewScrollRef.current?.scrollTo({ y: nextOffset, animated: false });
-          }}
-        />
-      </View>
-    );
-  }
-
-  if (preview.kind === "image" && preview.content) {
-    if (variant === "sheet") {
-      return (
-        <BottomSheetScrollView contentContainerStyle={styles.previewImageScrollContent}>
-          <RNImage
-            source={{
-              uri: `data:${preview.mimeType ?? "image/png"};base64,${preview.content}`,
-            }}
-            style={styles.previewImage}
-            resizeMode="contain"
-          />
-        </BottomSheetScrollView>
-      );
-    }
-    return (
-      <View style={styles.previewScrollContainer}>
-        <RNScrollView
-          ref={previewScrollRef}
-          style={styles.previewContent}
-          contentContainerStyle={styles.previewImageScrollContent}
-          onLayout={enablePreviewDesktopScrollbar ? handlePreviewLayout : undefined}
-          onScroll={enablePreviewDesktopScrollbar ? handlePreviewScroll : undefined}
-          onContentSizeChange={
-            enablePreviewDesktopScrollbar
-              ? previewScrollbarMetrics.onContentSizeChange
-              : undefined
-          }
-          scrollEventThrottle={enablePreviewDesktopScrollbar ? 16 : undefined}
-          showsVerticalScrollIndicator={!enablePreviewDesktopScrollbar}
-        >
-          <RNImage
-            source={{
-              uri: `data:${preview.mimeType ?? "image/png"};base64,${preview.content}`,
-            }}
-            style={styles.previewImage}
-            resizeMode="contain"
-          />
-        </RNScrollView>
-        <WebDesktopScrollbarOverlay
-          enabled={enablePreviewDesktopScrollbar}
-          metrics={previewScrollbarMetrics}
-          onScrollToOffset={(nextOffset) => {
-            previewScrollRef.current?.scrollTo({ y: nextOffset, animated: false });
-          }}
-        />
-      </View>
-    );
-  }
-
-  return (
-    <View style={styles.sheetCenterState}>
-      <Text style={styles.emptyText}>Binary preview unavailable</Text>
-      <Text style={styles.binaryMetaText}>{formatFileSize({ size: preview.size })}</Text>
-    </View>
-  );
-}
-
-function formatFileSize({ size }: { size: number }): string {
-  if (size < 1024) {
-    return `${size} B`;
-  }
-  if (size < 1024 * 1024) {
-    return `${(size / 1024).toFixed(1)} KB`;
-  }
-  return `${(size / (1024 * 1024)).toFixed(1)} MB`;
-}
-
 type EntryDisplayKind = "directory" | "image" | "text" | "other";
 
 const IMAGE_EXTENSIONS = new Set([

packages/app/src/components/file-pane.tsx

@@ -0,0 +1,278 @@
+import { useCallback, useMemo, useRef } from "react";
+import { useQuery } from "@tanstack/react-query";
+import {
+  ActivityIndicator,
+  Image as RNImage,
+  ScrollView as RNScrollView,
+  Text,
+  View,
+  Platform,
+  type LayoutChangeEvent,
+  type NativeScrollEvent,
+  type NativeSyntheticEvent,
+} from "react-native";
+import { StyleSheet, UnistylesRuntime } from "react-native-unistyles";
+import { Fonts } from "@/constants/theme";
+import { useSessionStore, type ExplorerFile } from "@/stores/session-store";
+import {
+  WebDesktopScrollbarOverlay,
+  useWebDesktopScrollbarMetrics,
+} from "@/components/web-desktop-scrollbar";
+
+function trimNonEmpty(value: string | null | undefined): string | null {
+  if (typeof value !== "string") {
+    return null;
+  }
+  const trimmed = value.trim();
+  return trimmed.length > 0 ? trimmed : null;
+}
+
+function formatFileSize({ size }: { size: number }): string {
+  if (size < 1024) {
+    return `${size} B`;
+  }
+  if (size < 1024 * 1024) {
+    return `${(size / 1024).toFixed(1)} KB`;
+  }
+  return `${(size / (1024 * 1024)).toFixed(1)} MB`;
+}
+
+function FilePreviewBody({
+  preview,
+  isLoading,
+  showDesktopWebScrollbar,
+}: {
+  preview: ExplorerFile | null;
+  isLoading: boolean;
+  showDesktopWebScrollbar: boolean;
+}) {
+  const enablePreviewDesktopScrollbar = showDesktopWebScrollbar;
+  const previewScrollRef = useRef<RNScrollView>(null);
+  const previewScrollbarMetrics = useWebDesktopScrollbarMetrics();
+
+  const handlePreviewScroll = useCallback(
+    (event: NativeSyntheticEvent<NativeScrollEvent>) => {
+      if (enablePreviewDesktopScrollbar) {
+        previewScrollbarMetrics.onScroll(event);
+      }
+    },
+    [enablePreviewDesktopScrollbar, previewScrollbarMetrics]
+  );
+
+  const handlePreviewLayout = useCallback(
+    (event: LayoutChangeEvent) => {
+      if (enablePreviewDesktopScrollbar) {
+        previewScrollbarMetrics.onLayout(event);
+      }
+    },
+    [enablePreviewDesktopScrollbar, previewScrollbarMetrics]
+  );
+
+  if (isLoading && !preview) {
+    return (
+      <View style={styles.centerState}>
+        <ActivityIndicator size="small" />
+        <Text style={styles.loadingText}>Loading file…</Text>
+      </View>
+    );
+  }
+
+  if (!preview) {
+    return (
+      <View style={styles.centerState}>
+        <Text style={styles.emptyText}>No preview available</Text>
+      </View>
+    );
+  }
+
+  if (preview.kind === "text") {
+    return (
+      <View style={styles.previewScrollContainer}>
+        <RNScrollView
+          ref={previewScrollRef}
+          style={styles.previewContent}
+          onLayout={enablePreviewDesktopScrollbar ? handlePreviewLayout : undefined}
+          onScroll={enablePreviewDesktopScrollbar ? handlePreviewScroll : undefined}
+          onContentSizeChange={
+            enablePreviewDesktopScrollbar
+              ? previewScrollbarMetrics.onContentSizeChange
+              : undefined
+          }
+          scrollEventThrottle={enablePreviewDesktopScrollbar ? 16 : undefined}
+          showsVerticalScrollIndicator={!enablePreviewDesktopScrollbar}
+        >
+          <RNScrollView
+            horizontal
+            nestedScrollEnabled
+            showsHorizontalScrollIndicator
+            contentContainerStyle={styles.previewCodeScrollContent}
+          >
+            <Text style={styles.codeText}>{preview.content}</Text>
+          </RNScrollView>
+        </RNScrollView>
+        <WebDesktopScrollbarOverlay
+          enabled={enablePreviewDesktopScrollbar}
+          metrics={previewScrollbarMetrics}
+          onScrollToOffset={(nextOffset) => {
+            previewScrollRef.current?.scrollTo({ y: nextOffset, animated: false });
+          }}
+        />
+      </View>
+    );
+  }
+
+  if (preview.kind === "image" && preview.content) {
+    return (
+      <View style={styles.previewScrollContainer}>
+        <RNScrollView
+          ref={previewScrollRef}
+          style={styles.previewContent}
+          contentContainerStyle={styles.previewImageScrollContent}
+          onLayout={enablePreviewDesktopScrollbar ? handlePreviewLayout : undefined}
+          onScroll={enablePreviewDesktopScrollbar ? handlePreviewScroll : undefined}
+          onContentSizeChange={
+            enablePreviewDesktopScrollbar
+              ? previewScrollbarMetrics.onContentSizeChange
+              : undefined
+          }
+          scrollEventThrottle={enablePreviewDesktopScrollbar ? 16 : undefined}
+          showsVerticalScrollIndicator={!enablePreviewDesktopScrollbar}
+        >
+          <RNImage
+            source={{
+              uri: `data:${preview.mimeType ?? "image/png"};base64,${preview.content}`,
+            }}
+            style={styles.previewImage}
+            resizeMode="contain"
+          />
+        </RNScrollView>
+        <WebDesktopScrollbarOverlay
+          enabled={enablePreviewDesktopScrollbar}
+          metrics={previewScrollbarMetrics}
+          onScrollToOffset={(nextOffset) => {
+            previewScrollRef.current?.scrollTo({ y: nextOffset, animated: false });
+          }}
+        />
+      </View>
+    );
+  }
+
+  return (
+    <View style={styles.centerState}>
+      <Text style={styles.emptyText}>Binary preview unavailable</Text>
+      <Text style={styles.binaryMetaText}>{formatFileSize({ size: preview.size })}</Text>
+    </View>
+  );
+}
+
+export function FilePane({
+  serverId,
+  workspaceRoot,
+  filePath,
+}: {
+  serverId: string;
+  workspaceRoot: string;
+  filePath: string;
+}) {
+  const isMobile =
+    UnistylesRuntime.breakpoint === "xs" || UnistylesRuntime.breakpoint === "sm";
+  const showDesktopWebScrollbar = Platform.OS === "web" && !isMobile;
+
+  const client = useSessionStore((state) => state.sessions[serverId]?.client ?? null);
+  const normalizedWorkspaceRoot = useMemo(() => workspaceRoot.trim(), [workspaceRoot]);
+  const normalizedFilePath = useMemo(() => trimNonEmpty(filePath), [filePath]);
+
+  const query = useQuery({
+    queryKey: ["workspaceFile", serverId, normalizedWorkspaceRoot, normalizedFilePath],
+    enabled: Boolean(client && normalizedWorkspaceRoot && normalizedFilePath),
+    queryFn: async () => {
+      if (!client || !normalizedWorkspaceRoot || !normalizedFilePath) {
+        return { file: null as ExplorerFile | null, error: "Host is not connected" };
+      }
+      const payload = await client.exploreFileSystem(
+        normalizedWorkspaceRoot,
+        normalizedFilePath,
+        "file"
+      );
+      return { file: payload.file ?? null, error: payload.error ?? null };
+    },
+    staleTime: 5_000,
+  });
+
+  return (
+    <View style={styles.container} testID="workspace-file-pane">
+      {query.data?.error ? (
+        <View style={styles.centerState}>
+          <Text style={styles.errorText}>{query.data.error}</Text>
+        </View>
+      ) : null}
+
+      <FilePreviewBody
+        preview={query.data?.file ?? null}
+        isLoading={query.isFetching}
+        showDesktopWebScrollbar={showDesktopWebScrollbar}
+      />
+    </View>
+  );
+}
+
+const styles = StyleSheet.create((theme) => ({
+  container: {
+    flex: 1,
+    minHeight: 0,
+    backgroundColor: theme.colors.surface0,
+  },
+  centerState: {
+    flex: 1,
+    alignItems: "center",
+    justifyContent: "center",
+    padding: theme.spacing[4],
+  },
+  loadingText: {
+    marginTop: theme.spacing[2],
+    color: theme.colors.foregroundMuted,
+    fontSize: theme.fontSize.sm,
+  },
+  errorText: {
+    color: theme.colors.destructive,
+    fontSize: theme.fontSize.sm,
+    textAlign: "center",
+  },
+  emptyText: {
+    color: theme.colors.foregroundMuted,
+    fontSize: theme.fontSize.sm,
+    textAlign: "center",
+  },
+  binaryMetaText: {
+    marginTop: theme.spacing[2],
+    color: theme.colors.foregroundMuted,
+    fontSize: theme.fontSize.sm,
+  },
+  previewScrollContainer: {
+    flex: 1,
+    minHeight: 0,
+  },
+  previewContent: {
+    flex: 1,
+    minHeight: 0,
+  },
+  previewCodeScrollContent: {
+    padding: theme.spacing[4],
+  },
+  codeText: {
+    fontFamily: Fonts.mono,
+    fontSize: theme.fontSize.sm,
+    lineHeight: theme.fontSize.sm * 1.45,
+    color: theme.colors.foreground,
+  },
+  previewImageScrollContent: {
+    flexGrow: 1,
+    padding: theme.spacing[4],
+    alignItems: "center",
+    justifyContent: "center",
+  },
+  previewImage: {
+    width: "100%",
+    height: 420,
+  },
+}));

packages/app/src/components/sortable-inline-list.web.tsx

@@ -57,7 +57,10 @@ function SortableItem<T>({
     // This is a no-op but matches the mobile API
   }, []);
 
-  const baseTransform = CSS.Transform.toString(transform);
+  // See `draggable-list.web.tsx` for details on why we zero out dnd-kit scale.
+  const baseTransform = CSS.Transform.toString(
+    transform && isDragging ? { ...transform, scaleX: 1, scaleY: 1 } : transform
+  );
   const scaleTransform = isDragging ? "scale(1.01)" : "";
   const combinedTransform = [baseTransform, scaleTransform].filter(Boolean).join(" ");
 

packages/app/src/components/terminal-emulator.tsx

@@ -3,6 +3,7 @@
 import { useEffect, useRef } from "react";
 import type { DOMProps } from "expo/dom";
 import "@xterm/xterm/css/xterm.css";
+import type { ITheme } from "@xterm/xterm";
 import type { PendingTerminalModifiers } from "../utils/terminal-keys";
 import { TerminalEmulatorRuntime } from "../terminal/runtime/terminal-emulator-runtime";
 
@@ -12,10 +13,9 @@ interface TerminalEmulatorProps {
   initialOutputText: string;
   outputChunkText: string;
   outputChunkSequence: number;
+  outputChunkReplay?: boolean;
   testId?: string;
-  backgroundColor?: string;
-  foregroundColor?: string;
-  cursorColor?: string;
+  xtermTheme?: ITheme;
   swipeGesturesEnabled?: boolean;
   onSwipeLeft?: () => void;
   onSwipeRight?: () => void;
@@ -44,10 +44,13 @@ export default function TerminalEmulator({
   initialOutputText,
   outputChunkText,
   outputChunkSequence,
+  outputChunkReplay = false,
   testId = "terminal-surface",
-  backgroundColor = "#0b0b0b",
-  foregroundColor = "#e6e6e6",
-  cursorColor = "#e6e6e6",
+  xtermTheme = {
+    background: "#0b0b0b",
+    foreground: "#e6e6e6",
+    cursor: "#e6e6e6",
+  },
   swipeGesturesEnabled = false,
   onSwipeLeft,
   onSwipeRight,
@@ -203,11 +206,7 @@ export default function TerminalEmulator({
       root,
       host,
       initialOutputText,
-      theme: {
-        backgroundColor,
-        foregroundColor,
-        cursorColor,
-      },
+      theme: xtermTheme,
     });
     appliedInitialOutputRef.current = initialOutputText;
 
@@ -218,7 +217,7 @@ export default function TerminalEmulator({
       }
       appliedInitialOutputRef.current = null;
     };
-  }, [backgroundColor, cursorColor, foregroundColor, streamKey]);
+  }, [streamKey, xtermTheme]);
 
   useEffect(() => {
     const runtime = runtimeRef.current;
@@ -273,11 +272,12 @@ export default function TerminalEmulator({
     }
     runtime.write({
       text: outputChunkText,
+      suppressInput: outputChunkReplay,
       onCommitted: () => {
         onOutputChunkConsumed?.(outputChunkSequence);
       },
     });
-  }, [onOutputChunkConsumed, outputChunkSequence, outputChunkText]);
+  }, [onOutputChunkConsumed, outputChunkReplay, outputChunkSequence, outputChunkText]);
 
   useEffect(() => {
     if (focusRequestToken <= 0) {
@@ -304,7 +304,7 @@ export default function TerminalEmulator({
         height: "100%",
         minHeight: 0,
         minWidth: 0,
-        backgroundColor,
+        backgroundColor: xtermTheme.background ?? "#0b0b0b",
         overflow: "hidden",
         overscrollBehavior: "none",
         touchAction: "pan-y",

packages/app/src/components/terminal-pane.tsx

@@ -42,6 +42,7 @@ import {
   terminalDebugLog,
 } from "@/terminal/runtime/terminal-debug";
 import { usePanelStore } from "@/stores/panel-store";
+import { toXtermTheme } from "@/utils/to-xterm-theme";
 import TerminalEmulator from "./terminal-emulator";
 
 interface TerminalPaneProps {
@@ -84,6 +85,7 @@ type ModifierState = {
 type TerminalOutputChunkState = {
   sequence: number;
   text: string;
+  replay: boolean;
 };
 
 type PendingTerminalInput =
@@ -146,6 +148,7 @@ export function TerminalPane({
   manageTerminalDirectorySubscription = true,
 }: TerminalPaneProps) {
   const { theme } = useUnistyles();
+  const xtermTheme = useMemo(() => toXtermTheme(theme.colors.terminal), [theme.colors.terminal]);
   const isMobile =
     UnistylesRuntime.breakpoint === "xs" || UnistylesRuntime.breakpoint === "sm";
   const mobileView = usePanelStore((state) => state.mobileView);
@@ -178,6 +181,7 @@ export function TerminalPane({
   const [selectedOutputChunk, setSelectedOutputChunk] = useState<TerminalOutputChunkState>({
     sequence: 0,
     text: "",
+    replay: false,
   });
   const [selectedOutputSnapshot, setSelectedOutputSnapshot] = useState("");
   const [activeStream, setActiveStream] = useState<{
@@ -600,8 +604,8 @@ export function TerminalPane({
     const controller = new TerminalStreamController({
       client,
       getPreferredSize: () => lastReportedSizeRef.current,
-      onChunk: ({ terminalId, text }) => {
-        outputPump.append({ terminalId, text });
+      onChunk: ({ terminalId, text, replay }) => {
+        outputPump.append({ terminalId, text, replay });
       },
       onReset: ({ terminalId }) => {
         outputPump.clearTerminal({ terminalId });
@@ -626,7 +630,7 @@ export function TerminalPane({
   useEffect(() => {
     outputDeliveryQueueRef.current?.reset();
     pendingTerminalInputRef.current = [];
-    setSelectedOutputChunk({ sequence: 0, text: "" });
+    setSelectedOutputChunk({ sequence: 0, text: "", replay: false });
     outputPumpRef.current?.setSelectedTerminal({
       terminalId: selectedTerminalId,
     });
@@ -1122,10 +1126,9 @@ export function TerminalPane({
               initialOutputText={selectedOutputSnapshot}
               outputChunkText={selectedOutputChunk.text}
               outputChunkSequence={selectedOutputChunk.sequence}
+              outputChunkReplay={selectedOutputChunk.replay}
               testId="terminal-surface"
-              backgroundColor={theme.colors.background}
-              foregroundColor={theme.colors.foreground}
-              cursorColor={theme.colors.foreground}
+              xtermTheme={xtermTheme}
               swipeGesturesEnabled={swipeGesturesEnabled}
               onSwipeRight={() => {
                 if (!swipeGesturesEnabled) {

packages/app/src/screens/workspace/workspace-screen.tsx

@@ -14,11 +14,13 @@ import * as Clipboard from "expo-clipboard";
 import {
   Bot,
   ChevronDown,
+  FileText,
   Folder,
   GitBranch,
   MoreVertical,
   PanelRight,
   Plus,
+  SquareTerminal,
   Terminal,
   X,
 } from "lucide-react-native";
@@ -45,6 +47,7 @@ import {
 } from "@/components/ui/context-menu";
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
 import { ExplorerSidebar } from "@/components/explorer-sidebar";
+import { FilePane } from "@/components/file-pane";
 import { TerminalPane } from "@/components/terminal-pane";
 import { SortableInlineList } from "@/components/sortable-inline-list";
 import { ExplorerSidebarAnimationProvider } from "@/contexts/explorer-sidebar-animation-context";
@@ -52,6 +55,7 @@ import { useToast } from "@/contexts/toast-context";
 import { useExplorerOpenGesture } from "@/hooks/use-explorer-open-gesture";
 import { usePanelStore, type ExplorerCheckoutContext } from "@/stores/panel-store";
 import { useSessionStore, type Agent } from "@/stores/session-store";
+import { useWorkspaceFileTabsStore } from "@/stores/workspace-file-tabs-store";
 import {
   buildWorkspaceTabPersistenceKey,
   useWorkspaceTabsStore,
@@ -61,7 +65,9 @@ import {
   buildHostAgentDetailRoute,
   buildHostWorkspaceRoute,
   buildHostWorkspaceAgentRoute,
+  buildHostWorkspaceFileRoute,
   buildHostWorkspaceTerminalRoute,
+  encodeFilePathForPathSegment,
   decodeWorkspaceIdFromPathSegment,
 } from "@/utils/host-routes";
 import { buildNewAgentRoute } from "@/utils/new-agent-routing";
@@ -84,6 +90,7 @@ const DROPDOWN_WIDTH = 220;
 const NEW_TAB_AGENT_OPTION_ID = "__new_tab_agent__";
 const NEW_TAB_TERMINAL_OPTION_ID = "__new_tab_terminal__";
 const EMPTY_TAB_ORDER: string[] = [];
+const EMPTY_OPEN_FILE_PATHS: string[] = [];
 
 type TabAvailability = "available" | "invalid" | "unknown";
 
@@ -110,6 +117,13 @@ type WorkspaceTabDescriptor =
       terminalId: string;
       label: string;
       subtitle: string;
+    }
+  | {
+      key: string;
+      kind: "file";
+      filePath: string;
+      label: string;
+      subtitle: string;
     };
 
 function applyWorkspaceTabOrder(input: {
@@ -219,6 +233,13 @@ function normalizeWorkspaceTab(
     }
     return { kind: "terminal", terminalId };
   }
+  if (value.kind === "file") {
+    const path = trimNonEmpty(value.path);
+    if (!path) {
+      return null;
+    }
+    return { kind: "file", path: path.replace(/\\/g, "/") };
+  }
   return null;
 }
 
@@ -235,6 +256,9 @@ function tabEquals(left: WorkspaceTabTarget | null, right: WorkspaceTabTarget |
   if (left.kind === "terminal" && right.kind === "terminal") {
     return left.terminalId === right.terminalId;
   }
+  if (left.kind === "file" && right.kind === "file") {
+    return left.path === right.path;
+  }
   return false;
 }
 
@@ -250,6 +274,13 @@ function buildTabRoute(input: {
       input.tab.agentId
     );
   }
+  if (input.tab.kind === "file") {
+    return buildHostWorkspaceFileRoute(
+      input.serverId,
+      input.workspaceId,
+      input.tab.path
+    );
+  }
   return buildHostWorkspaceTerminalRoute(
     input.serverId,
     input.workspaceId,
@@ -270,6 +301,9 @@ function resolveTabAvailability(input: {
     }
     return input.agentsById.has(input.tab.agentId) ? "available" : "invalid";
   }
+  if (input.tab.kind === "file") {
+    return "available";
+  }
   if (!input.terminalsHydrated) {
     return "unknown";
   }
@@ -293,6 +327,9 @@ function toWorkspaceTabTarget(
   if (tab.kind === "agent") {
     return { kind: "agent", agentId: tab.agentId };
   }
+  if (tab.kind === "file") {
+    return { kind: "file", path: tab.filePath };
+  }
   return { kind: "terminal", terminalId: tab.terminalId };
 }
 
@@ -566,33 +603,6 @@ function WorkspaceScreenContent({
     return map;
   }, [workspaceAgents]);
 
-  const baseTabs = useMemo<WorkspaceTabDescriptor[]>(() => {
-    const next: WorkspaceTabDescriptor[] = [];
-
-    for (const agent of workspaceAgents) {
-      next.push({
-        key: `agent:${agent.id}`,
-        kind: "agent",
-        agentId: agent.id,
-        provider: agent.provider,
-        label: agent.title?.trim() || "New agent",
-        subtitle: `${formatProviderLabel(agent.provider)} agent`,
-      });
-    }
-
-    for (const terminal of terminals) {
-      next.push({
-        key: `terminal:${terminal.id}`,
-        kind: "terminal",
-        terminalId: terminal.id,
-        label: terminal.name,
-        subtitle: "Terminal",
-      });
-    }
-
-    return next;
-  }, [terminals, workspaceAgents]);
-
   const terminalIds = useMemo(() => {
     const set = new Set<string>();
     for (const terminal of terminals) {
@@ -628,6 +638,64 @@ function WorkspaceScreenContent({
   );
   const setTabOrder = useWorkspaceTabsStore((state) => state.setTabOrder);
 
+  const openFileTab = useWorkspaceFileTabsStore((state) => state.openFileTab);
+  const closeFileTab = useWorkspaceFileTabsStore((state) => state.closeFileTab);
+
+  useEffect(() => {
+    if (requestedTab?.kind !== "file") {
+      return;
+    }
+    openFileTab({
+      serverId: normalizedServerId,
+      workspaceId: normalizedWorkspaceId,
+      filePath: requestedTab.path,
+    });
+  }, [normalizedServerId, normalizedWorkspaceId, openFileTab, requestedTab]);
+
+  const openFilePaths = useWorkspaceFileTabsStore((state) =>
+    persistenceKey
+      ? state.openFilePathsByWorkspace[persistenceKey] ?? EMPTY_OPEN_FILE_PATHS
+      : EMPTY_OPEN_FILE_PATHS
+  );
+
+  const baseTabs = useMemo<WorkspaceTabDescriptor[]>(() => {
+    const next: WorkspaceTabDescriptor[] = [];
+
+    for (const agent of workspaceAgents) {
+      next.push({
+        key: `agent:${agent.id}`,
+        kind: "agent",
+        agentId: agent.id,
+        provider: agent.provider,
+        label: agent.title?.trim() || "New agent",
+        subtitle: `${formatProviderLabel(agent.provider)} agent`,
+      });
+    }
+
+    for (const terminal of terminals) {
+      next.push({
+        key: `terminal:${terminal.id}`,
+        kind: "terminal",
+        terminalId: terminal.id,
+        label: terminal.name,
+        subtitle: "Terminal",
+      });
+    }
+
+    for (const filePath of openFilePaths) {
+      const fileName = filePath.split("/").filter(Boolean).pop() ?? filePath;
+      next.push({
+        key: `file:${filePath}`,
+        kind: "file",
+        filePath,
+        label: fileName,
+        subtitle: filePath,
+      });
+    }
+
+    return next;
+  }, [openFilePaths, terminals, workspaceAgents]);
+
   const tabs = useMemo(
     () => applyWorkspaceTabOrder({ tabs: baseTabs, keys: tabOrder }),
     [baseTabs, tabOrder]
@@ -648,6 +716,9 @@ function WorkspaceScreenContent({
     if (first.kind === "agent") {
       return { kind: "agent", agentId: first.agentId };
     }
+    if (first.kind === "file") {
+      return { kind: "file", path: first.filePath };
+    }
     return { kind: "terminal", terminalId: first.terminalId };
   }, [tabs]);
 
@@ -737,6 +808,13 @@ function WorkspaceScreenContent({
       if (tabEquals(tab, resolvedTab)) {
         return;
       }
+      if (tab.kind === "file") {
+        openFileTab({
+          serverId: normalizedServerId,
+          workspaceId: normalizedWorkspaceId,
+          filePath: tab.path,
+        });
+      }
       const targetRoute = buildTabRoute({
         serverId: normalizedServerId,
         workspaceId: normalizedWorkspaceId,
@@ -752,12 +830,23 @@ function WorkspaceScreenContent({
     [
       normalizedServerId,
       normalizedWorkspaceId,
+      openFileTab,
       resolvedTab,
       router,
       setLastFocusedTab,
     ]
   );
 
+  const handleOpenFileFromExplorer = useCallback(
+    (filePath: string) => {
+      if (isMobile) {
+        closeToAgent();
+      }
+      navigateToTab({ kind: "file", path: filePath });
+    },
+    [closeToAgent, isMobile, navigateToTab]
+  );
+
   useEffect(() => {
     if (!resolvedTab) {
       return;
@@ -804,6 +893,7 @@ function WorkspaceScreenContent({
   ]);
 
   const [isTabSwitcherOpen, setIsTabSwitcherOpen] = useState(false);
+  const [isNewTerminalHovered, setIsNewTerminalHovered] = useState(false);
   const [hoveredTabKey, setHoveredTabKey] = useState<string | null>(null);
   const [hoveredCloseTabKey, setHoveredCloseTabKey] = useState<string | null>(
     null
@@ -817,6 +907,10 @@ function WorkspaceScreenContent({
         map.set(tab.key, { kind: "agent", agentId: tab.agentId });
         continue;
       }
+      if (tab.kind === "file") {
+        map.set(tab.key, { kind: "file", path: tab.filePath });
+        continue;
+      }
       map.set(tab.key, { kind: "terminal", terminalId: tab.terminalId });
     }
     return map;
@@ -829,6 +923,9 @@ function WorkspaceScreenContent({
     if (resolvedTab.kind === "agent") {
       return `agent:${resolvedTab.agentId}`;
     }
+    if (resolvedTab.kind === "file") {
+      return `file:${resolvedTab.path}`;
+    }
     return `terminal:${resolvedTab.terminalId}`;
   }, [resolvedTab]);
 
@@ -1036,6 +1133,47 @@ function WorkspaceScreenContent({
     ]
   );
 
+  const handleCloseFileTab = useCallback(
+    (filePath: string) => {
+      const tabKey = `file:${filePath}`;
+      const nextTab = resolvedTab?.kind === "file" && resolvedTab.path === filePath
+        ? getTabAfterClosing(tabKey)
+        : null;
+
+      closeFileTab({
+        serverId: normalizedServerId,
+        workspaceId: normalizedWorkspaceId,
+        filePath,
+      });
+
+      setHoveredTabKey((current) => (current === tabKey ? null : current));
+      setHoveredCloseTabKey((current) => (current === tabKey ? null : current));
+
+      if (nextTab) {
+        navigateToTab(nextTab);
+        return;
+      }
+
+      if (resolvedTab?.kind === "file" && resolvedTab.path === filePath) {
+        router.replace(
+          buildHostWorkspaceRoute(
+            normalizedServerId,
+            normalizedWorkspaceId
+          ) as any
+        );
+      }
+    },
+    [
+      closeFileTab,
+      getTabAfterClosing,
+      navigateToTab,
+      normalizedServerId,
+      normalizedWorkspaceId,
+      resolvedTab,
+      router,
+    ]
+  );
+
   const handleCopyAgentId = useCallback(
     async (agentId: string) => {
       if (!agentId) return;
@@ -1093,22 +1231,33 @@ function WorkspaceScreenContent({
 
       const agentIds: string[] = [];
       const terminalIdsToClose: string[] = [];
+      const filePathsToClose: string[] = [];
       for (const tab of toClose) {
         if (tab.kind === "agent") {
           agentIds.push(tab.agentId);
-        } else {
+        } else if (tab.kind === "terminal") {
           terminalIdsToClose.push(tab.terminalId);
+        } else {
+          filePathsToClose.push(tab.filePath);
         }
       }
 
       const confirmed = await confirmDialog({
         title: "Close tabs to the right?",
         message:
-          agentIds.length > 0 && terminalIdsToClose.length > 0
-            ? `This will archive ${agentIds.length} agent(s) and close ${terminalIdsToClose.length} terminal(s). Any running process in a closed terminal will be stopped immediately.`
-            : terminalIdsToClose.length > 0
-              ? `This will close ${terminalIdsToClose.length} terminal(s). Any running process in a closed terminal will be stopped immediately.`
-              : `This will archive ${agentIds.length} agent(s).`,
+          agentIds.length > 0 && terminalIdsToClose.length > 0 && filePathsToClose.length > 0
+            ? `This will archive ${agentIds.length} agent(s), close ${terminalIdsToClose.length} terminal(s), and close ${filePathsToClose.length} file(s). Any running process in a closed terminal will be stopped immediately.`
+            : agentIds.length > 0 && terminalIdsToClose.length > 0
+              ? `This will archive ${agentIds.length} agent(s) and close ${terminalIdsToClose.length} terminal(s). Any running process in a closed terminal will be stopped immediately.`
+              : terminalIdsToClose.length > 0 && filePathsToClose.length > 0
+                ? `This will close ${terminalIdsToClose.length} terminal(s) and close ${filePathsToClose.length} file(s). Any running process in a closed terminal will be stopped immediately.`
+                : agentIds.length > 0 && filePathsToClose.length > 0
+                  ? `This will archive ${agentIds.length} agent(s) and close ${filePathsToClose.length} file(s).`
+                  : terminalIdsToClose.length > 0
+                    ? `This will close ${terminalIdsToClose.length} terminal(s). Any running process in a closed terminal will be stopped immediately.`
+                    : filePathsToClose.length > 0
+                      ? `This will close ${filePathsToClose.length} file(s).`
+                      : `This will archive ${agentIds.length} agent(s).`,
         confirmLabel: "Close",
         cancelLabel: "Cancel",
         destructive: true,
@@ -1145,11 +1294,21 @@ function WorkspaceScreenContent({
         }
       }
 
+      for (const filePath of filePathsToClose) {
+        closeFileTab({
+          serverId: normalizedServerId,
+          workspaceId: normalizedWorkspaceId,
+          filePath,
+        });
+      }
+
       const resolvedTabKey = resolvedTab?.kind === "agent"
         ? `agent:${resolvedTab.agentId}`
         : resolvedTab?.kind === "terminal"
           ? `terminal:${resolvedTab.terminalId}`
-          : null;
+          : resolvedTab?.kind === "file"
+            ? `file:${resolvedTab.path}`
+            : null;
       const closedKeys = new Set(toClose.map((tab) => tab.key));
       if (resolvedTabKey && closedKeys.has(resolvedTabKey)) {
         const target = tabByKey.get(tabKey);
@@ -1163,9 +1322,11 @@ function WorkspaceScreenContent({
     },
     [
       archiveAgent,
+      closeFileTab,
       killTerminalMutation,
       navigateToTab,
       normalizedServerId,
+      normalizedWorkspaceId,
       queryClient,
       resolvedTab,
       tabByKey,
@@ -1206,6 +1367,16 @@ function WorkspaceScreenContent({
       );
     }
 
+    if (resolvedTab.kind === "file") {
+      return (
+        <FilePane
+          serverId={normalizedServerId}
+          workspaceRoot={normalizedWorkspaceId}
+          filePath={resolvedTab.path}
+        />
+      );
+    }
+
     return (
       <TerminalPane
         serverId={normalizedServerId}
@@ -1342,6 +1513,10 @@ function WorkspaceScreenContent({
                         return <Terminal size={14} color={theme.colors.foreground} />;
                       }
 
+                      if (activeDescriptor.kind === "file") {
+                        return <FileText size={14} color={theme.colors.foreground} />;
+                      }
+
                       const tabAgent = agentsById.get(activeDescriptor.agentId) ?? null;
                       const tabAgentStatusBucket = tabAgent
                         ? deriveSidebarStateBucket({
@@ -1416,6 +1591,8 @@ function WorkspaceScreenContent({
                   <TooltipTrigger
                     testID="workspace-new-terminal-tab"
                     onPress={() => handleSelectNewTabOption(NEW_TAB_TERMINAL_OPTION_ID)}
+                    onHoverIn={() => setIsNewTerminalHovered(true)}
+                    onHoverOut={() => setIsNewTerminalHovered(false)}
                     disabled={createTerminalMutation.isPending}
                     accessibilityRole="button"
                     accessibilityLabel="New terminal tab"
@@ -1429,8 +1606,8 @@ function WorkspaceScreenContent({
                       <ActivityIndicator size="small" color={theme.colors.foregroundMuted} />
                     ) : (
                       <View style={styles.terminalPlusIcon}>
-                        <Terminal size={theme.iconSize.sm} color={theme.colors.foregroundMuted} />
-                        <View style={styles.terminalPlusBadge}>
+                        <SquareTerminal size={theme.iconSize.sm} color={theme.colors.foregroundMuted} />
+                        <View style={[styles.terminalPlusBadge, isNewTerminalHovered && styles.terminalPlusBadgeHovered]}>
                           <Plus size={10} color={theme.colors.foregroundMuted} />
                         </View>
                       </View>
@@ -1527,6 +1704,8 @@ function WorkspaceScreenContent({
                             />
                           ) : null}
                         </View>
+                      ) : tab.kind === "file" ? (
+                        <FileText size={14} color={iconColor} />
                       ) : (
                         <Terminal size={14} color={iconColor} />
                       );
@@ -1556,6 +1735,10 @@ function WorkspaceScreenContent({
                               navigateToTab({ kind: "agent", agentId: tab.agentId });
                               return;
                             }
+                            if (tab.kind === "file") {
+                              navigateToTab({ kind: "file", path: tab.filePath });
+                              return;
+                            }
                             navigateToTab({
                               kind: "terminal",
                               terminalId: tab.terminalId,
@@ -1587,7 +1770,9 @@ function WorkspaceScreenContent({
                             testID={
                               tab.kind === "agent"
                                 ? `workspace-agent-close-${tab.agentId}`
-                                : `workspace-terminal-close-${tab.terminalId}`
+                                : tab.kind === "terminal"
+                                  ? `workspace-terminal-close-${tab.terminalId}`
+                                  : `workspace-file-close-${encodeFilePathForPathSegment(tab.filePath)}`
                             }
                             pointerEvents={shouldShowCloseButton ? "auto" : "none"}
                             disabled={!shouldShowCloseButton || isClosingTab}
@@ -1609,6 +1794,10 @@ function WorkspaceScreenContent({
                                 void handleCloseAgentTab(tab.agentId);
                                 return;
                               }
+                              if (tab.kind === "file") {
+                                handleCloseFileTab(tab.filePath);
+                                return;
+                              }
                               void handleCloseTerminalTab(tab.terminalId);
                             }}
                             style={({ hovered, pressed }) => [
@@ -1676,6 +1865,10 @@ function WorkspaceScreenContent({
                                 void handleCloseAgentTab(tab.agentId);
                                 return;
                               }
+                              if (tab.kind === "file") {
+                                handleCloseFileTab(tab.filePath);
+                                return;
+                              }
                               void handleCloseTerminalTab(tab.terminalId);
                             }}
                           >
@@ -1709,6 +1902,8 @@ function WorkspaceScreenContent({
                   <TooltipTrigger
                     testID="workspace-new-terminal-tab"
                     onPress={() => handleSelectNewTabOption(NEW_TAB_TERMINAL_OPTION_ID)}
+                    onHoverIn={() => setIsNewTerminalHovered(true)}
+                    onHoverOut={() => setIsNewTerminalHovered(false)}
                     disabled={createTerminalMutation.isPending}
                     accessibilityRole="button"
                     accessibilityLabel="New terminal tab"
@@ -1725,11 +1920,11 @@ function WorkspaceScreenContent({
                       />
                     ) : (
                       <View style={styles.terminalPlusIcon}>
-                        <Terminal
+                        <SquareTerminal
                           size={theme.iconSize.sm}
                           color={theme.colors.foregroundMuted}
                         />
-                        <View style={styles.terminalPlusBadge}>
+                        <View style={[styles.terminalPlusBadge, isNewTerminalHovered && styles.terminalPlusBadgeHovered]}>
                           <Plus size={10} color={theme.colors.foregroundMuted} />
                         </View>
                       </View>
@@ -1759,6 +1954,7 @@ function WorkspaceScreenContent({
           workspaceId={normalizedWorkspaceId}
           workspaceRoot={normalizedWorkspaceId}
           isGit={isGitCheckout}
+          onOpenFile={handleOpenFileFromExplorer}
         />
       </View>
     </View>
@@ -1832,17 +2028,18 @@ const styles = StyleSheet.create((theme) => ({
   },
   terminalPlusBadge: {
     position: "absolute",
-    right: -6,
-    bottom: -6,
-    width: 14,
-    height: 14,
-    borderRadius: 7,
+    right: -5,
+    bottom: -5,
+    width: 12,
+    height: 12,
+    borderRadius: 6,
     backgroundColor: theme.colors.surface1,
-    borderWidth: 1,
-    borderColor: theme.colors.border,
     alignItems: "center",
     justifyContent: "center",
   },
+  terminalPlusBadgeHovered: {
+    backgroundColor: theme.colors.surface2,
+  },
   mobileTabsRow: {
     borderBottomWidth: 1,
     borderBottomColor: theme.colors.border,

packages/app/src/stores/workspace-file-tabs-store.ts

@@ -0,0 +1,98 @@
+import { create } from "zustand";
+import { buildWorkspaceTabPersistenceKey } from "./workspace-tabs-store";
+
+function trimNonEmpty(value: string | null | undefined): string | null {
+  if (typeof value !== "string") {
+    return null;
+  }
+  const trimmed = value.trim();
+  return trimmed.length > 0 ? trimmed : null;
+}
+
+function normalizeFilePath(value: string | null | undefined): string | null {
+  const trimmed = trimNonEmpty(value);
+  if (!trimmed) {
+    return null;
+  }
+  return trimmed.replace(/\\/g, "/");
+}
+
+type WorkspaceFileTabsState = {
+  openFilePathsByWorkspace: Record<string, string[]>;
+  openFileTab: (input: {
+    serverId: string;
+    workspaceId: string;
+    filePath: string;
+  }) => void;
+  closeFileTab: (input: {
+    serverId: string;
+    workspaceId: string;
+    filePath: string;
+  }) => void;
+  isFileTabOpen: (input: {
+    serverId: string;
+    workspaceId: string;
+    filePath: string;
+  }) => boolean;
+};
+
+export const useWorkspaceFileTabsStore = create<WorkspaceFileTabsState>()(
+  (set, get) => ({
+    openFilePathsByWorkspace: {},
+    openFileTab: ({ serverId, workspaceId, filePath }) => {
+      const key = buildWorkspaceTabPersistenceKey({ serverId, workspaceId });
+      const normalizedFilePath = normalizeFilePath(filePath);
+      if (!key || !normalizedFilePath) {
+        return;
+      }
+
+      set((state) => {
+        const current = state.openFilePathsByWorkspace[key] ?? [];
+        if (current.includes(normalizedFilePath)) {
+          return state;
+        }
+        return {
+          openFilePathsByWorkspace: {
+            ...state.openFilePathsByWorkspace,
+            [key]: [...current, normalizedFilePath],
+          },
+        };
+      });
+    },
+    closeFileTab: ({ serverId, workspaceId, filePath }) => {
+      const key = buildWorkspaceTabPersistenceKey({ serverId, workspaceId });
+      const normalizedFilePath = normalizeFilePath(filePath);
+      if (!key || !normalizedFilePath) {
+        return;
+      }
+
+      set((state) => {
+        const current = state.openFilePathsByWorkspace[key] ?? [];
+        if (current.length === 0 || !current.includes(normalizedFilePath)) {
+          return state;
+        }
+        const next = current.filter((path) => path !== normalizedFilePath);
+        if (next.length === 0) {
+          const { [key]: _removed, ...rest } = state.openFilePathsByWorkspace;
+          return { openFilePathsByWorkspace: rest };
+        }
+        return {
+          openFilePathsByWorkspace: {
+            ...state.openFilePathsByWorkspace,
+            [key]: next,
+          },
+        };
+      });
+    },
+    isFileTabOpen: ({ serverId, workspaceId, filePath }) => {
+      const key = buildWorkspaceTabPersistenceKey({ serverId, workspaceId });
+      const normalizedFilePath = normalizeFilePath(filePath);
+      if (!key || !normalizedFilePath) {
+        return false;
+      }
+      const current = get().openFilePathsByWorkspace[key] ?? [];
+      return current.includes(normalizedFilePath);
+    },
+  })
+);
+

packages/app/src/stores/workspace-tabs-store.ts

@@ -4,7 +4,8 @@ import { createJSONStorage, persist } from "zustand/middleware";
 
 export type WorkspaceTabTarget =
   | { kind: "agent"; agentId: string }
-  | { kind: "terminal"; terminalId: string };
+  | { kind: "terminal"; terminalId: string }
+  | { kind: "file"; path: string };
 
 function normalizeKeys(keys: string[]): string[] {
   const seen = new Set<string>();
@@ -50,6 +51,10 @@ function normalizeWorkspaceTab(
     }
     return { kind: "terminal", terminalId };
   }
+  if (value.kind === "file") {
+    // File tabs are session-only; do not persist in workspace tab memory.
+    return null;
+  }
   return null;
 }
 

packages/app/src/styles/theme.ts

@@ -144,6 +144,33 @@ const lightSemanticColors = {
   accentBorder: "#ececf1",
   input: "#f4f4f5",
   ring: "#18181b",
+
+  terminal: {
+    background: "#ffffff",
+    foreground: "#09090b",
+    cursor: "#09090b",
+    cursorAccent: "#ffffff",
+    selectionBackground: "rgba(0, 0, 0, 0.15)",
+    selectionForeground: "#09090b",
+
+    black: "#09090b",
+    red: "#dc2626",
+    green: "#16a34a",
+    yellow: "#ca8a04",
+    blue: "#2563eb",
+    magenta: "#9333ea",
+    cyan: "#0891b2",
+    white: "#ffffff",
+
+    brightBlack: "#3f3f46",
+    brightRed: "#ef4444",
+    brightGreen: "#22c55e",
+    brightYellow: "#f59e0b",
+    brightBlue: "#3b82f6",
+    brightMagenta: "#a855f7",
+    brightCyan: "#06b6d4",
+    brightWhite: "#fafafa",
+  },
 } as const;
 
 const darkSemanticColors = {
@@ -186,6 +213,33 @@ const darkSemanticColors = {
   accentBorder: "#34343a",
   input: "#27272a",
   ring: "#d4d4d8",
+
+  terminal: {
+    background: "#18181c",
+    foreground: "#fafafa",
+    cursor: "#fafafa",
+    cursorAccent: "#18181c",
+    selectionBackground: "rgba(255, 255, 255, 0.2)",
+    selectionForeground: "#fafafa",
+
+    black: "#121214",
+    red: "#ef4444",
+    green: "#22c55e",
+    yellow: "#f59e0b",
+    blue: "#3b82f6",
+    magenta: "#a855f7",
+    cyan: "#06b6d4",
+    white: "#e4e4e7",
+
+    brightBlack: "#3f3f46",
+    brightRed: "#f87171",
+    brightGreen: "#4ade80",
+    brightYellow: "#fbbf24",
+    brightBlue: "#60a5fa",
+    brightMagenta: "#c084fc",
+    brightCyan: "#22d3ee",
+    brightWhite: "#ffffff",
+  },
 } as const;
 
 const commonTheme = {

packages/app/src/terminal/runtime/terminal-emulator-runtime.ts

@@ -1,5 +1,7 @@
 import { FitAddon } from "@xterm/addon-fit";
-import { Terminal } from "@xterm/xterm";
+import { Unicode11Addon } from "@xterm/addon-unicode11";
+import { WebglAddon } from "@xterm/addon-webgl";
+import { Terminal, type ITheme } from "@xterm/xterm";
 import {
   type PendingTerminalModifiers,
   isTerminalModifierDomKey,
@@ -10,17 +12,11 @@ import {
 } from "@/utils/terminal-keys";
 import { summarizeTerminalText, terminalDebugLog } from "./terminal-debug";
 
-export type TerminalEmulatorRuntimeTheme = {
-  backgroundColor: string;
-  foregroundColor: string;
-  cursorColor: string;
-};
-
 export type TerminalEmulatorRuntimeMountInput = {
   root: HTMLDivElement;
   host: HTMLDivElement;
   initialOutputText: string;
-  theme: TerminalEmulatorRuntimeTheme;
+  theme: ITheme;
 };
 
 export type TerminalEmulatorRuntimeCallbacks = {
@@ -48,12 +44,14 @@ type TerminalEmulatorRuntimeDisposables = {
   restoreDocumentStyles: () => void;
   restoreViewportStyles: () => void;
   disposeFitAddon: () => void;
+  disposeWebglAddon: () => void;
   disposeTerminal: () => void;
 };
 
 type TerminalOutputOperation = {
   type: "write" | "clear";
   text: string;
+  suppressInput?: boolean;
   onCommitted?: () => void;
 };
 
@@ -67,6 +65,26 @@ const DEFAULT_TOUCH_SCROLL_LINE_HEIGHT_PX = 18;
 const FIT_TIMEOUT_DELAYS_MS = [0, 16, 48, 120, 250, 500, 1_000, 2_000];
 const OUTPUT_OPERATION_TIMEOUT_MS = 5_000;
 
+const DEFAULT_TERMINAL_FONT_FAMILY = [
+  // Prefer common developer fonts, with Nerd Font variants for prompt/TUI glyphs.
+  "JetBrains Mono",
+  "JetBrainsMono Nerd Font",
+  "JetBrainsMono NF",
+  "MesloLGM Nerd Font",
+  "MesloLGM NF",
+  "Hack Nerd Font",
+  "FiraCode Nerd Font",
+  // PUA-only fallback (many Nerd glyphs live here on some systems).
+  "Symbols Nerd Font",
+  // System fallbacks.
+  "SF Mono",
+  "Menlo",
+  "Monaco",
+  "Consolas",
+  "'Liberation Mono'",
+  "monospace",
+].join(", ");
+
 export class TerminalEmulatorRuntime {
   private callbacks: TerminalEmulatorRuntimeCallbacks = {};
   private pendingModifiers: PendingTerminalModifiers = {
@@ -82,6 +100,7 @@ export class TerminalEmulatorRuntime {
   private outputOperations: TerminalOutputOperation[] = [];
   private inFlightOutputOperation: TerminalOutputOperation | null = null;
   private inFlightOutputOperationTimeout: ReturnType<typeof setTimeout> | null = null;
+  private suppressInput = false;
 
   setCallbacks(input: { callbacks: TerminalEmulatorRuntimeCallbacks }): void {
     this.callbacks = input.callbacks;
@@ -109,19 +128,49 @@ export class TerminalEmulatorRuntime {
       convertEol: false,
       cursorBlink: true,
       cursorStyle: "bar",
-      fontFamily: "'SF Mono', Menlo, Monaco, Consolas, 'Liberation Mono', monospace",
+      fontFamily: DEFAULT_TERMINAL_FONT_FAMILY,
       fontSize: 13,
-      lineHeight: 1.25,
+      lineHeight: 1.0,
       scrollback: 10_000,
-      theme: {
-        background: input.theme.backgroundColor,
-        foreground: input.theme.foregroundColor,
-        cursor: input.theme.cursorColor,
-      },
+      theme: input.theme,
     });
     const fitAddon = new FitAddon();
+    const unicode11Addon = new Unicode11Addon();
+    let webglAddon: WebglAddon | null = null;
     terminal.loadAddon(fitAddon);
+    terminal.loadAddon(unicode11Addon);
     terminal.open(input.host);
+    try {
+      terminal.unicode.activeVersion = "11";
+    } catch {
+      // Ignore if unicode API isn't available in this build/runtime.
+    }
+
+    // Prefer GPU rendering when available. This tends to reduce visible seams in block characters
+    // and improves scroll performance, but must gracefully fall back on platforms without WebGL.
+    let webglAddonRaf: number | null = requestAnimationFrame(() => {
+      webglAddonRaf = null;
+      try {
+        webglAddon = new WebglAddon();
+        webglAddon.onContextLoss(() => {
+          try {
+            webglAddon?.dispose();
+          } catch {
+            // ignore
+          }
+          webglAddon = null;
+          // Force a refresh after context loss to avoid visual corruption.
+          try {
+            terminal.refresh(0, terminal.rows - 1);
+          } catch {
+            // ignore
+          }
+        });
+        terminal.loadAddon(webglAddon);
+      } catch {
+        webglAddon = null;
+      }
+    });
 
     const restoreDocumentStyles = this.applyDocumentBoundsStyles({
       root: input.root,
@@ -174,6 +223,17 @@ export class TerminalEmulatorRuntime {
     fitAndEmitResize(true);
 
     const inputDisposable = terminal.onData((data) => {
+      if (this.suppressInput) {
+        terminalDebugLog({
+          scope: "emulator-runtime",
+          event: "input:suppressed",
+          details: {
+            length: data.length,
+            preview: summarizeTerminalText({ text: data, maxChars: 64 }),
+          },
+        });
+        return;
+      }
       terminalDebugLog({
         scope: "emulator-runtime",
         event: "input:onData",
@@ -283,7 +343,7 @@ export class TerminalEmulatorRuntime {
     }, 0);
 
     if (input.initialOutputText.length > 0) {
-      terminal.write(input.initialOutputText);
+      this.write({ text: input.initialOutputText, suppressInput: true });
       terminalDebugLog({
         scope: "emulator-runtime",
         event: "output:initial-write",
@@ -329,6 +389,18 @@ export class TerminalEmulatorRuntime {
       disposeFitAddon: () => {
         fitAddon.dispose();
       },
+      disposeWebglAddon: () => {
+        if (webglAddonRaf !== null) {
+          cancelAnimationFrame(webglAddonRaf);
+          webglAddonRaf = null;
+        }
+        try {
+          webglAddon?.dispose();
+        } catch {
+          // ignore
+        }
+        webglAddon = null;
+      },
       disposeTerminal: () => {
         terminal.dispose();
       },
@@ -344,13 +416,14 @@ export class TerminalEmulatorRuntime {
       disposables.removeFontListeners();
       disposables.removeTouchListeners();
       disposables.disposeFitAddon();
+      disposables.disposeWebglAddon();
       disposables.disposeTerminal();
       disposables.restoreDocumentStyles();
       disposables.restoreViewportStyles();
     };
   }
 
-  write(input: { text: string; onCommitted?: () => void }): void {
+  write(input: { text: string; suppressInput?: boolean; onCommitted?: () => void }): void {
     if (input.text.length === 0) {
       input.onCommitted?.();
       return;
@@ -358,6 +431,7 @@ export class TerminalEmulatorRuntime {
     this.outputOperations.push({
       type: "write",
       text: input.text,
+      suppressInput: input.suppressInput ?? false,
       ...(input.onCommitted ? { onCommitted: input.onCommitted } : {}),
     });
     terminalDebugLog({
@@ -376,6 +450,7 @@ export class TerminalEmulatorRuntime {
     this.outputOperations.push({
       type: "clear",
       text: "",
+      suppressInput: false,
       ...(input?.onCommitted ? { onCommitted: input.onCommitted } : {}),
     });
     terminalDebugLog({
@@ -421,6 +496,7 @@ export class TerminalEmulatorRuntime {
     this.fitAddon = null;
     this.fitAndEmitResize = null;
     this.lastSize = null;
+    this.suppressInput = false;
   }
 
   private processOutputQueue(): void {
@@ -439,12 +515,17 @@ export class TerminalEmulatorRuntime {
     }
 
     this.inFlightOutputOperation = operation;
+    const previousSuppressInput = this.suppressInput;
+    if (operation.type === "write") {
+      this.suppressInput = Boolean(operation.suppressInput);
+    }
     const finalizeOperation = (expectedOperation: TerminalOutputOperation) => {
       if (this.inFlightOutputOperation !== expectedOperation) {
         return;
       }
       this.inFlightOutputOperation = null;
       this.clearInFlightOutputTimeout();
+      this.suppressInput = previousSuppressInput;
       expectedOperation.onCommitted?.();
       this.processOutputQueue();
     };
@@ -493,12 +574,19 @@ export class TerminalEmulatorRuntime {
     const previousDocumentElementOverflow = documentElement.style.overflow;
     const previousDocumentElementWidth = documentElement.style.width;
     const previousDocumentElementHeight = documentElement.style.height;
+    const previousDocumentElementTextSizeAdjust =
+      documentElement.style.getPropertyValue("text-size-adjust");
+    const previousDocumentElementWebkitTextSizeAdjust =
+      documentElement.style.getPropertyValue("-webkit-text-size-adjust");
 
     const previousBodyOverflow = body.style.overflow;
     const previousBodyWidth = body.style.width;
     const previousBodyHeight = body.style.height;
     const previousBodyMargin = body.style.margin;
     const previousBodyPadding = body.style.padding;
+    const previousBodyTextSizeAdjust = body.style.getPropertyValue("text-size-adjust");
+    const previousBodyWebkitTextSizeAdjust =
+      body.style.getPropertyValue("-webkit-text-size-adjust");
 
     const previousRootOverflow = rootContainer?.style.overflow ?? "";
     const previousRootWidth = rootContainer?.style.width ?? "";
@@ -507,12 +595,16 @@ export class TerminalEmulatorRuntime {
     documentElement.style.overflow = "hidden";
     documentElement.style.width = "100%";
     documentElement.style.height = "100%";
+    documentElement.style.setProperty("text-size-adjust", "100%");
+    documentElement.style.setProperty("-webkit-text-size-adjust", "100%");
 
     body.style.overflow = "hidden";
     body.style.width = "100%";
     body.style.height = "100%";
     body.style.margin = "0";
     body.style.padding = "0";
+    body.style.setProperty("text-size-adjust", "100%");
+    body.style.setProperty("-webkit-text-size-adjust", "100%");
 
     if (rootContainer) {
       rootContainer.style.overflow = "hidden";
@@ -524,12 +616,19 @@ export class TerminalEmulatorRuntime {
       documentElement.style.overflow = previousDocumentElementOverflow;
       documentElement.style.width = previousDocumentElementWidth;
       documentElement.style.height = previousDocumentElementHeight;
+      documentElement.style.setProperty("text-size-adjust", previousDocumentElementTextSizeAdjust);
+      documentElement.style.setProperty(
+        "-webkit-text-size-adjust",
+        previousDocumentElementWebkitTextSizeAdjust
+      );
 
       body.style.overflow = previousBodyOverflow;
       body.style.width = previousBodyWidth;
       body.style.height = previousBodyHeight;
       body.style.margin = previousBodyMargin;
       body.style.padding = previousBodyPadding;
+      body.style.setProperty("text-size-adjust", previousBodyTextSizeAdjust);
+      body.style.setProperty("-webkit-text-size-adjust", previousBodyWebkitTextSizeAdjust);
 
       if (rootContainer) {
         rootContainer.style.overflow = previousRootOverflow;

packages/app/src/terminal/runtime/terminal-output-delivery-queue.test.ts

@@ -5,7 +5,7 @@ import { TerminalOutputDeliveryQueue } from "./terminal-output-delivery-queue";
 describe("terminal-output-delivery-queue", () => {
   it("retries in-flight delivery when consume is missing", () => {
     vi.useFakeTimers();
-    const delivered: Array<{ sequence: number; text: string }> = [];
+    const delivered: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const queue = new TerminalOutputDeliveryQueue({
       onDeliver: (chunk) => {
         delivered.push(chunk);
@@ -13,45 +13,45 @@ describe("terminal-output-delivery-queue", () => {
       deliveryTimeoutMs: 100,
     });
 
-    queue.enqueue({ sequence: 1, text: "a" });
-    queue.enqueue({ sequence: 2, text: "b" });
+    queue.enqueue({ sequence: 1, text: "a", replay: false });
+    queue.enqueue({ sequence: 2, text: "b", replay: false });
 
-    expect(delivered).toEqual([{ sequence: 1, text: "a" }]);
+    expect(delivered).toEqual([{ sequence: 1, text: "a", replay: false }]);
 
     vi.advanceTimersByTime(100);
     expect(delivered).toEqual([
-      { sequence: 1, text: "a" },
-      { sequence: 1, text: "a" },
+      { sequence: 1, text: "a", replay: false },
+      { sequence: 1, text: "a", replay: false },
     ]);
 
     queue.consume({ sequence: 1 });
     expect(delivered).toEqual([
-      { sequence: 1, text: "a" },
-      { sequence: 1, text: "a" },
-      { sequence: 2, text: "b" },
+      { sequence: 1, text: "a", replay: false },
+      { sequence: 1, text: "a", replay: false },
+      { sequence: 2, text: "b", replay: false },
     ]);
 
     vi.useRealTimers();
   });
 
   it("delivers first chunk immediately and blocks later chunks until consumed", () => {
-    const delivered: Array<{ sequence: number; text: string }> = [];
+    const delivered: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const queue = new TerminalOutputDeliveryQueue({
       onDeliver: (chunk) => {
         delivered.push(chunk);
       },
     });
 
-    queue.enqueue({ sequence: 1, text: "a" });
-    queue.enqueue({ sequence: 2, text: "b" });
-    queue.enqueue({ sequence: 3, text: "c" });
+    queue.enqueue({ sequence: 1, text: "a", replay: false });
+    queue.enqueue({ sequence: 2, text: "b", replay: false });
+    queue.enqueue({ sequence: 3, text: "c", replay: false });
 
-    expect(delivered).toEqual([{ sequence: 1, text: "a" }]);
+    expect(delivered).toEqual([{ sequence: 1, text: "a", replay: false }]);
 
     queue.consume({ sequence: 1 });
     expect(delivered).toEqual([
-      { sequence: 1, text: "a" },
-      { sequence: 3, text: "bc" },
+      { sequence: 1, text: "a", replay: false },
+      { sequence: 3, text: "bc", replay: false },
     ]);
   });
 
@@ -59,83 +59,83 @@ describe("terminal-output-delivery-queue", () => {
     const delivered = vi.fn();
     const queue = new TerminalOutputDeliveryQueue({ onDeliver: delivered });
 
-    queue.enqueue({ sequence: 1, text: "x" });
+    queue.enqueue({ sequence: 1, text: "x", replay: false });
     queue.consume({ sequence: 99 });
-    queue.enqueue({ sequence: 2, text: "y" });
+    queue.enqueue({ sequence: 2, text: "y", replay: false });
 
     expect(delivered).toHaveBeenCalledTimes(1);
-    expect(delivered).toHaveBeenNthCalledWith(1, { sequence: 1, text: "x" });
+    expect(delivered).toHaveBeenNthCalledWith(1, { sequence: 1, text: "x", replay: false });
 
     queue.consume({ sequence: 1 });
 
     expect(delivered).toHaveBeenCalledTimes(2);
-    expect(delivered).toHaveBeenNthCalledWith(2, { sequence: 2, text: "y" });
+    expect(delivered).toHaveBeenNthCalledWith(2, { sequence: 2, text: "y", replay: false });
   });
 
   it("resets in-flight and pending chunks", () => {
-    const delivered: Array<{ sequence: number; text: string }> = [];
+    const delivered: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const queue = new TerminalOutputDeliveryQueue({
       onDeliver: (chunk) => {
         delivered.push(chunk);
       },
     });
 
-    queue.enqueue({ sequence: 1, text: "hello" });
-    queue.enqueue({ sequence: 2, text: " world" });
+    queue.enqueue({ sequence: 1, text: "hello", replay: false });
+    queue.enqueue({ sequence: 2, text: " world", replay: false });
 
     queue.reset();
-    queue.enqueue({ sequence: 3, text: "next" });
+    queue.enqueue({ sequence: 3, text: "next", replay: false });
 
     expect(delivered).toEqual([
-      { sequence: 1, text: "hello" },
-      { sequence: 3, text: "next" },
+      { sequence: 1, text: "hello", replay: false },
+      { sequence: 3, text: "next", replay: false },
     ]);
   });
 
   it("preserves empty chunk payloads for authoritative clears", () => {
-    const delivered: Array<{ sequence: number; text: string }> = [];
+    const delivered: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const queue = new TerminalOutputDeliveryQueue({
       onDeliver: (chunk) => {
         delivered.push(chunk);
       },
     });
 
-    queue.enqueue({ sequence: 1, text: "abc" });
+    queue.enqueue({ sequence: 1, text: "abc", replay: false });
     queue.consume({ sequence: 1 });
-    queue.enqueue({ sequence: 2, text: "" });
+    queue.enqueue({ sequence: 2, text: "", replay: false });
 
     expect(delivered).toEqual([
-      { sequence: 1, text: "abc" },
-      { sequence: 2, text: "" },
+      { sequence: 1, text: "abc", replay: false },
+      { sequence: 2, text: "", replay: false },
     ]);
   });
 
   it("treats clear chunks as a delivery barrier and drops pending stale text", () => {
-    const delivered: Array<{ sequence: number; text: string }> = [];
+    const delivered: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const queue = new TerminalOutputDeliveryQueue({
       onDeliver: (chunk) => {
         delivered.push(chunk);
       },
     });
 
-    queue.enqueue({ sequence: 1, text: "a" });
-    queue.enqueue({ sequence: 2, text: "b" });
-    queue.enqueue({ sequence: 3, text: "" });
-    queue.enqueue({ sequence: 4, text: "c" });
+    queue.enqueue({ sequence: 1, text: "a", replay: false });
+    queue.enqueue({ sequence: 2, text: "b", replay: false });
+    queue.enqueue({ sequence: 3, text: "", replay: false });
+    queue.enqueue({ sequence: 4, text: "c", replay: false });
 
-    expect(delivered).toEqual([{ sequence: 1, text: "a" }]);
+    expect(delivered).toEqual([{ sequence: 1, text: "a", replay: false }]);
 
     queue.consume({ sequence: 1 });
     expect(delivered).toEqual([
-      { sequence: 1, text: "a" },
-      { sequence: 3, text: "" },
+      { sequence: 1, text: "a", replay: false },
+      { sequence: 3, text: "", replay: false },
     ]);
 
     queue.consume({ sequence: 3 });
     expect(delivered).toEqual([
-      { sequence: 1, text: "a" },
-      { sequence: 3, text: "" },
-      { sequence: 4, text: "c" },
+      { sequence: 1, text: "a", replay: false },
+      { sequence: 3, text: "", replay: false },
+      { sequence: 4, text: "c", replay: false },
     ]);
   });
 });

packages/app/src/terminal/runtime/terminal-output-delivery-queue.ts

@@ -3,6 +3,7 @@ import { summarizeTerminalText, terminalDebugLog } from "./terminal-debug";
 export type TerminalOutputDeliveryChunk = {
   sequence: number;
   text: string;
+  replay: boolean;
 };
 
 export type TerminalOutputDeliveryQueueOptions = {
@@ -48,7 +49,11 @@ export class TerminalOutputDeliveryQueue {
     }
 
     const lastPendingChunk = this.pendingChunks[this.pendingChunks.length - 1];
-    if (lastPendingChunk && lastPendingChunk.text.length > 0) {
+    if (
+      lastPendingChunk &&
+      lastPendingChunk.text.length > 0 &&
+      lastPendingChunk.replay === chunk.replay
+    ) {
       lastPendingChunk.sequence = chunk.sequence;
       lastPendingChunk.text += chunk.text;
     } else {
@@ -138,6 +143,7 @@ export class TerminalOutputDeliveryQueue {
     this.options.onDeliver({
       sequence: chunk.sequence,
       text: chunk.text,
+      replay: chunk.replay,
     });
   }
 

packages/app/src/terminal/runtime/terminal-output-pump.test.ts

@@ -5,7 +5,7 @@ import { TerminalOutputPump } from "./terminal-output-pump";
 describe("terminal-output-pump", () => {
   it("batches selected-terminal chunk bursts into ordered flushes", () => {
     vi.useFakeTimers();
-    const chunks: Array<{ sequence: number; text: string }> = [];
+    const chunks: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const pump = new TerminalOutputPump({
       maxOutputChars: 100,
       onSelectedOutputChunk: (chunk) => {
@@ -14,16 +14,16 @@ describe("terminal-output-pump", () => {
     });
 
     pump.setSelectedTerminal({ terminalId: "term-1" });
-    pump.append({ terminalId: "term-1", text: "a" });
-    pump.append({ terminalId: "term-1", text: "b" });
-    pump.append({ terminalId: "term-1", text: "c" });
+    pump.append({ terminalId: "term-1", text: "a", replay: false });
+    pump.append({ terminalId: "term-1", text: "b", replay: false });
+    pump.append({ terminalId: "term-1", text: "c", replay: false });
 
     expect(chunks).toEqual([]);
 
     vi.runOnlyPendingTimers();
 
     expect(chunks).toEqual([
-      { sequence: 1, text: "abc" },
+      { sequence: 1, text: "abc", replay: false },
     ]);
 
     vi.useRealTimers();
@@ -31,7 +31,7 @@ describe("terminal-output-pump", () => {
 
   it("keeps per-terminal snapshots and switches selected stream deterministically", () => {
     vi.useFakeTimers();
-    const chunks: Array<{ sequence: number; text: string }> = [];
+    const chunks: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const pump = new TerminalOutputPump({
       maxOutputChars: 10,
       onSelectedOutputChunk: (chunk) => {
@@ -40,21 +40,21 @@ describe("terminal-output-pump", () => {
     });
 
     pump.setSelectedTerminal({ terminalId: "term-1" });
-    pump.append({ terminalId: "term-1", text: "hello" });
+    pump.append({ terminalId: "term-1", text: "hello", replay: false });
     vi.runOnlyPendingTimers();
     expect(pump.readSnapshot({ terminalId: "term-1" })).toBe("hello");
 
-    pump.append({ terminalId: "term-2", text: "world" });
+    pump.append({ terminalId: "term-2", text: "world", replay: false });
     vi.runOnlyPendingTimers();
     expect(pump.readSnapshot({ terminalId: "term-2" })).toBe("world");
 
     pump.setSelectedTerminal({ terminalId: "term-2" });
-    pump.append({ terminalId: "term-2", text: "!" });
+    pump.append({ terminalId: "term-2", text: "!", replay: false });
     vi.runOnlyPendingTimers();
 
     expect(chunks).toEqual([
-      { sequence: 1, text: "hello" },
-      { sequence: 2, text: "!" },
+      { sequence: 1, text: "hello", replay: false },
+      { sequence: 2, text: "!", replay: false },
     ]);
 
     vi.useRealTimers();
@@ -62,7 +62,7 @@ describe("terminal-output-pump", () => {
 
   it("resets selected output when clearing selected terminal", () => {
     vi.useFakeTimers();
-    const chunks: Array<{ sequence: number; text: string }> = [];
+    const chunks: Array<{ sequence: number; text: string; replay: boolean }> = [];
     const pump = new TerminalOutputPump({
       maxOutputChars: 10,
       onSelectedOutputChunk: (chunk) => {
@@ -71,15 +71,15 @@ describe("terminal-output-pump", () => {
     });
 
     pump.setSelectedTerminal({ terminalId: "term-1" });
-    pump.append({ terminalId: "term-1", text: "abc" });
+    pump.append({ terminalId: "term-1", text: "abc", replay: false });
     vi.runOnlyPendingTimers();
 
     pump.clearTerminal({ terminalId: "term-1" });
 
     expect(pump.readSnapshot({ terminalId: "term-1" })).toBe("");
     expect(chunks).toEqual([
-      { sequence: 1, text: "abc" },
-      { sequence: 2, text: "" },
+      { sequence: 1, text: "abc", replay: false },
+      { sequence: 2, text: "", replay: false },
     ]);
 
     vi.useRealTimers();
@@ -91,8 +91,8 @@ describe("terminal-output-pump", () => {
       onSelectedOutputChunk: () => {},
     });
 
-    pump.append({ terminalId: "a", text: "one" });
-    pump.append({ terminalId: "b", text: "two" });
+    pump.append({ terminalId: "a", text: "one", replay: false });
+    pump.append({ terminalId: "b", text: "two", replay: false });
     pump.prune({ terminalIds: ["b"] });
 
     expect(pump.readSnapshot({ terminalId: "a" })).toBe("");

packages/app/src/terminal/runtime/terminal-output-pump.ts

@@ -9,6 +9,7 @@ import { summarizeTerminalText, terminalDebugLog } from "./terminal-debug";
 export type TerminalOutputChunk = {
   sequence: number;
   text: string;
+  replay: boolean;
 };
 
 export type TerminalOutputPumpOptions = {
@@ -23,6 +24,7 @@ export type TerminalOutputPumpSetSelectedInput = {
 export type TerminalOutputPumpAppendInput = {
   terminalId: string;
   text: string;
+  replay: boolean;
 };
 
 export type TerminalOutputPumpReadInput = {
@@ -42,6 +44,7 @@ export class TerminalOutputPump {
   private selectedTerminalId: string | null = null;
   private selectedChunkSequence = 0;
   private selectedChunkAccumulator = "";
+  private selectedChunkAccumulatorReplay: boolean | null = null;
   private selectedChunkFlushTimer: ReturnType<typeof setTimeout> | null = null;
 
   constructor(private readonly options: TerminalOutputPumpOptions) {}
@@ -61,6 +64,7 @@ export class TerminalOutputPump {
     });
     this.clearSelectedChunkFlushTimer();
     this.selectedChunkAccumulator = "";
+    this.selectedChunkAccumulatorReplay = null;
     this.selectedTerminalId = input.terminalId;
   }
 
@@ -85,6 +89,18 @@ export class TerminalOutputPump {
       return;
     }
 
+    if (
+      this.selectedChunkAccumulator.length > 0 &&
+      typeof this.selectedChunkAccumulatorReplay === "boolean" &&
+      this.selectedChunkAccumulatorReplay !== input.replay
+    ) {
+      this.flushSelectedChunkAccumulator();
+    }
+
+    if (this.selectedChunkAccumulator.length === 0) {
+      this.selectedChunkAccumulatorReplay = input.replay;
+    }
+
     this.selectedChunkAccumulator += input.text;
     terminalDebugLog({
       scope: "output-pump",
@@ -93,6 +109,7 @@ export class TerminalOutputPump {
         terminalId: input.terminalId,
         appendedLength: input.text.length,
         accumulatorLength: this.selectedChunkAccumulator.length,
+        replay: input.replay,
         preview: summarizeTerminalText({ text: input.text, maxChars: 80 }),
       },
     });
@@ -104,7 +121,8 @@ export class TerminalOutputPump {
     if (this.selectedTerminalId === input.terminalId) {
       this.clearSelectedChunkFlushTimer();
       this.selectedChunkAccumulator = "";
-      this.emitSelectedChunk({ text: "" });
+      this.selectedChunkAccumulatorReplay = null;
+      this.emitSelectedChunk({ text: "", replay: false });
     }
   }
 
@@ -152,24 +170,28 @@ export class TerminalOutputPump {
     }
 
     const text = this.selectedChunkAccumulator;
+    const replay = this.selectedChunkAccumulatorReplay ?? false;
     this.selectedChunkAccumulator = "";
+    this.selectedChunkAccumulatorReplay = null;
     terminalDebugLog({
       scope: "output-pump",
       event: "selected-terminal:flush",
       details: {
         terminalId: this.selectedTerminalId,
         textLength: text.length,
+        replay,
         preview: summarizeTerminalText({ text, maxChars: 96 }),
       },
     });
-    this.emitSelectedChunk({ text });
+    this.emitSelectedChunk({ text, replay });
   }
 
-  private emitSelectedChunk(input: { text: string }): void {
+  private emitSelectedChunk(input: { text: string; replay: boolean }): void {
     this.selectedChunkSequence += 1;
     this.options.onSelectedOutputChunk({
       sequence: this.selectedChunkSequence,
       text: input.text,
+      replay: input.replay,
     });
   }
 

packages/app/src/terminal/runtime/terminal-stream-controller.ts

@@ -54,7 +54,7 @@ export type TerminalStreamControllerStatus = {
 export type TerminalStreamControllerOptions = {
   client: TerminalStreamControllerClient;
   getPreferredSize: () => TerminalStreamControllerSize | null;
-  onChunk: (input: { terminalId: string; text: string }) => void;
+  onChunk: (input: { terminalId: string; text: string; replay: boolean }) => void;
   onReset?: (input: { terminalId: string }) => void;
   onStatusChange?: (status: TerminalStreamControllerStatus) => void;
   maxAttachAttempts?: number;
@@ -500,6 +500,7 @@ export class TerminalStreamController {
     this.options.onChunk({
       terminalId: input.terminalId,
       text,
+      replay: Boolean(input.chunk.replay),
     });
   }
 
@@ -565,6 +566,7 @@ export class TerminalStreamController {
         this.options.onChunk({
           terminalId: activeStream.terminalId,
           text: tail,
+          replay: false,
         });
       }
     } catch {

packages/app/src/utils/host-routes.test.ts

@@ -1,12 +1,16 @@
 import { describe, expect, it } from "vitest";
 import {
   buildHostWorkspaceRoute,
+  buildHostWorkspaceFileRoute,
+  decodeFilePathFromPathSegment,
   decodeWorkspaceIdFromPathSegment,
+  encodeFilePathForPathSegment,
   encodeWorkspaceIdForPathSegment,
   parseHostAgentDraftRouteFromPathname,
   parseHostAgentRouteFromPathname,
   parseHostDraftRouteFromPathname,
   parseHostWorkspaceAgentRouteFromPathname,
+  parseHostWorkspaceFileRouteFromPathname,
   parseHostWorkspaceTerminalRouteFromPathname,
   parseHostWorkspaceRouteFromPathname,
 } from "./host-routes";
@@ -54,6 +58,12 @@ describe("workspace route parsing", () => {
     expect(decodeWorkspaceIdFromPathSegment("L3RtcC9yZXBv")).toBe("/tmp/repo");
   });
 
+  it("encodes file paths as base64url (no padding)", () => {
+    const encoded = encodeFilePathForPathSegment("src/index.ts");
+    expect(encoded).toMatch(/^[A-Za-z0-9_-]+$/);
+    expect(decodeFilePathFromPathSegment(encoded)).toBe("src/index.ts");
+  });
+
   it("parses workspace route", () => {
     expect(
       parseHostWorkspaceRouteFromPathname("/h/local/workspace/L3RtcC9yZXBv")
@@ -63,6 +73,19 @@ describe("workspace route parsing", () => {
     });
   });
 
+  it("parses workspace file route", () => {
+    const encodedPath = encodeFilePathForPathSegment("src/index.ts");
+    expect(
+      parseHostWorkspaceFileRouteFromPathname(
+        `/h/local/workspace/L3RtcC9yZXBv/file/${encodedPath}`
+      )
+    ).toEqual({
+      serverId: "local",
+      workspaceId: "/tmp/repo",
+      filePath: "src/index.ts",
+    });
+  });
+
   it("parses workspace agent route", () => {
     expect(
       parseHostWorkspaceAgentRouteFromPathname(
@@ -104,4 +127,10 @@ describe("workspace route parsing", () => {
       "/h/local/workspace/L3RtcC9yZXBv"
     );
   });
+
+  it("builds base64url workspace file routes", () => {
+    expect(buildHostWorkspaceFileRoute("local", "/tmp/repo", "src/index.ts")).toBe(
+      `/h/local/workspace/L3RtcC9yZXBv/file/${encodeFilePathForPathSegment("src/index.ts")}`
+    );
+  });
 });

packages/app/src/utils/host-routes.ts

@@ -94,6 +94,26 @@ export function decodeWorkspaceIdFromPathSegment(workspaceIdSegment: string): st
   return normalizeWorkspaceId(decoded);
 }
 
+export function encodeFilePathForPathSegment(filePath: string): string {
+  const normalized = trimNonEmpty(filePath);
+  if (!normalized) {
+    return "";
+  }
+  return toBase64UrlNoPad(normalized);
+}
+
+export function decodeFilePathFromPathSegment(filePathSegment: string): string | null {
+  const normalizedSegment = trimNonEmpty(filePathSegment);
+  if (!normalizedSegment) {
+    return null;
+  }
+  const decoded = trimNonEmpty(decodeSegment(normalizedSegment));
+  if (!decoded) {
+    return null;
+  }
+  return tryDecodeBase64UrlNoPadUtf8(decoded);
+}
+
 export function parseServerIdFromPathname(pathname: string): string | null {
   const match = pathname.match(/^\/h\/([^/]+)(?:\/|$)/);
   if (!match) {
@@ -211,6 +231,10 @@ export function parseHostWorkspaceRouteFromPathname(
   if (terminalIdx >= 0 && terminalIdx > workspaceIdStart) {
     workspaceIdEnd = Math.min(workspaceIdEnd, terminalIdx);
   }
+  const fileIdx = pathname.lastIndexOf("/file/");
+  if (fileIdx >= 0 && fileIdx > workspaceIdStart) {
+    workspaceIdEnd = Math.min(workspaceIdEnd, fileIdx);
+  }
 
   const rawWorkspaceId = pathname.slice(workspaceIdStart, workspaceIdEnd).replace(/\/+$/, "");
   const workspaceId = decodeWorkspaceIdFromPathSegment(rawWorkspaceId);
@@ -320,6 +344,55 @@ export function parseHostWorkspaceTerminalRouteFromPathname(
   return { serverId, workspaceId, terminalId };
 }
 
+export function parseHostWorkspaceFileRouteFromPathname(
+  pathname: string
+): { serverId: string; workspaceId: string; filePath: string } | null {
+  const prefix = "/h/";
+  if (!pathname.startsWith(prefix)) {
+    return null;
+  }
+
+  const serverIdStart = prefix.length;
+  const serverIdEnd = pathname.indexOf("/", serverIdStart);
+  if (serverIdEnd < 0) {
+    return null;
+  }
+  const rawServerId = pathname.slice(serverIdStart, serverIdEnd);
+  const serverId = trimNonEmpty(decodeSegment(rawServerId));
+  if (!serverId) {
+    return null;
+  }
+
+  const workspacePrefix = "/workspace/";
+  if (!pathname.startsWith(workspacePrefix, serverIdEnd)) {
+    return null;
+  }
+
+  const workspaceIdStart = serverIdEnd + workspacePrefix.length;
+  const fileMarker = "/file/";
+  const fileIdx = pathname.lastIndexOf(fileMarker);
+  if (fileIdx < 0 || fileIdx <= workspaceIdStart) {
+    return null;
+  }
+
+  const rawWorkspaceId = pathname.slice(workspaceIdStart, fileIdx).replace(/\/+$/, "");
+  const workspaceId = decodeWorkspaceIdFromPathSegment(rawWorkspaceId);
+  if (!workspaceId) {
+    return null;
+  }
+
+  const filePathStart = fileIdx + fileMarker.length;
+  const filePathEnd = pathname.indexOf("/", filePathStart);
+  const rawFilePath =
+    filePathEnd < 0 ? pathname.slice(filePathStart) : pathname.slice(filePathStart, filePathEnd);
+  const filePath = decodeFilePathFromPathSegment(rawFilePath);
+  if (!filePath) {
+    return null;
+  }
+
+  return { serverId, workspaceId, filePath };
+}
+
 export function buildHostWorkspaceRoute(
   serverId: string,
   workspaceId: string
@@ -362,6 +435,19 @@ export function buildHostWorkspaceTerminalRoute(
   return `${base}/terminal/${encodeSegment(normalizedTerminalId)}`;
 }
 
+export function buildHostWorkspaceFileRoute(
+  serverId: string,
+  workspaceId: string,
+  filePath: string
+): string {
+  const base = buildHostWorkspaceRoute(serverId, workspaceId);
+  const encodedFilePath = encodeFilePathForPathSegment(filePath);
+  if (base === "/" || !encodedFilePath) {
+    return "/";
+  }
+  return `${base}/file/${encodeSegment(encodedFilePath)}`;
+}
+
 export function buildHostAgentDetailRoute(
   serverId: string,
   agentId: string,

packages/app/src/utils/to-xterm-theme.ts

@@ -0,0 +1,35 @@
+import type { ITheme } from "@xterm/xterm";
+
+import type { Theme } from "@/styles/theme";
+
+type TerminalPalette = Theme["colors"]["terminal"];
+
+export function toXtermTheme(terminal: TerminalPalette): ITheme {
+  return {
+    background: terminal.background,
+    foreground: terminal.foreground,
+    cursor: terminal.cursor,
+    cursorAccent: terminal.cursorAccent,
+    selectionBackground: terminal.selectionBackground,
+    selectionForeground: terminal.selectionForeground,
+
+    black: terminal.black,
+    red: terminal.red,
+    green: terminal.green,
+    yellow: terminal.yellow,
+    blue: terminal.blue,
+    magenta: terminal.magenta,
+    cyan: terminal.cyan,
+    white: terminal.white,
+
+    brightBlack: terminal.brightBlack,
+    brightRed: terminal.brightRed,
+    brightGreen: terminal.brightGreen,
+    brightYellow: terminal.brightYellow,
+    brightBlue: terminal.brightBlue,
+    brightMagenta: terminal.brightMagenta,
+    brightCyan: terminal.brightCyan,
+    brightWhite: terminal.brightWhite,
+  };
+}
+

packages/desktop/package.json

@@ -9,7 +9,6 @@
     "tauri": "tauri"
   },
   "devDependencies": {
-    "@tauri-apps/cli": "^2.9.6",
-    "@tauri-apps/cli-linux-x64-gnu": "^2.9.6"
+    "@tauri-apps/cli": "^2.9.6"
   }
 }