diff --git a/web/src/lib/events.ts b/web/src/lib/events.ts
index 80c2450cb4..6fe2f81e62 100644
--- a/web/src/lib/events.ts
+++ b/web/src/lib/events.ts
@@ -569,8 +569,8 @@ export interface SessionAgentChangedEvent {
  * Each todo item has:
  * - `content`: the task description string
  * - `status`: `"pending"` | `"in_progress"` | `"completed"`
- * - `activeForm`: present-continuous form of the task (e.g. `"Running tests"`).
- *   Shown by the TodoPanel under in-progress items when distinct from `content`.
+ * - `activeForm`: present-continuous form of the task (e.g. `"Running tests"`),
+ *   the present-continuous label for an in-progress item when distinct from `content`.
  */
 export interface SessionTodosEvent {
   type: "session_todos";
diff --git a/web/src/lib/sessionWorkspaceState.ts b/web/src/lib/sessionWorkspaceState.ts
index 3d1684903e..268c1f1091 100644
--- a/web/src/lib/sessionWorkspaceState.ts
+++ b/web/src/lib/sessionWorkspaceState.ts
@@ -8,14 +8,14 @@
 
 import type { RightRailTab } from "@/shell/railTabs";
 
-const RAIL_TABS: readonly RightRailTab[] = ["files", "subagents", "terminals", "todos", "browser"];
+const RAIL_TABS: readonly RightRailTab[] = ["files", "subagents", "terminals", "browser"];
 
 export interface SessionWorkspaceState {
   /** Whether the rail was left open in this session. */
   open?: boolean;
   /** User-chosen rail width (px) for this session. */
   widthPx?: number;
-  /** The selected rail tab (Files / Agents / Shells / Tasks). */
+  /** The selected rail tab (Files / Agents / Shells). */
   rightRailTab?: RightRailTab;
   /** Ordered list of open file tabs. */
   openFiles?: string[];
diff --git a/web/src/shell/AppShell.subagent-nav.test.tsx b/web/src/shell/AppShell.subagent-nav.test.tsx
index 9ebb561473..c1f32e238e 100644
--- a/web/src/shell/AppShell.subagent-nav.test.tsx
+++ b/web/src/shell/AppShell.subagent-nav.test.tsx
@@ -89,7 +89,6 @@ vi.mock("./FileViewer", () => ({
 vi.mock("./InlineTerminalsSection", () => ({
   InlineTerminalsSection: () => <div data-testid="inline-terminals-section" />,
 }));
-vi.mock("./TodoPanel", () => ({ TodoPanel: () => <div data-testid="todo-panel" /> }));
 vi.mock("./FilesPanelDrawer", () => ({
   FilesPanelDrawer: () => <div data-testid="files-panel-drawer" />,
 }));
diff --git a/web/src/shell/AppShell.test.tsx b/web/src/shell/AppShell.test.tsx
index efce3c070c..2defd97bf7 100644
--- a/web/src/shell/AppShell.test.tsx
+++ b/web/src/shell/AppShell.test.tsx
@@ -165,9 +165,6 @@ vi.mock("@/components/blocks/TerminalView", () => ({
     <div data-testid="terminal-view-stub">{terminalId}</div>
   ),
 }));
-vi.mock("./TodoPanel", () => ({
-  TodoPanel: () => <div data-testid="todo-panel" />,
-}));
 vi.mock("./FilesPanelDrawer", () => ({
   FilesPanelDrawer: ({ open, flatView }: { open: boolean; flatView: boolean }) => (
     <div
@@ -472,12 +469,9 @@ beforeEach(() => {
   // choice carries across sessions. Clear it so a stored preference from one
   // test can't change another test's default scope.
   localStorage.clear();
-  // The Tasks tab/drawer gates on chatStore.todos; reset so a populated
-  // todo list from one test doesn't leak into the next.
   // Reset terminal-first startup signals so one test's terminalPending /
   // failed status can't leak into another's terminalStartingUp.
   useChatStore.setState({
-    todos: [],
     terminalPending: false,
     sessionStatus: "idle",
     status: "idle",
@@ -1804,10 +1798,10 @@ describe("Right workspace card visibility", () => {
   });
 
   it("keeps the card mounted with Agents as the only tab for a minimal agent", () => {
-    // A no-os_env agent (available: false) with no shells and no todos
+    // A no-os_env agent (available: false) with no shells
     // still has the unconditional Agents tab (the panel lists at least
     // the main agent), so the card mounts, the Agents tab is selected
-    // by the fallback, and Files/Shells/Tasks are absent. An unmounted
+    // by the fallback, and Files/Shells are absent. An unmounted
     // card here means the always-visible Agents rule regressed.
     useEnvironmentMock.mockReturnValue({
       data: { available: false, root: null, home: null },
@@ -2220,7 +2214,7 @@ describe("AppShell URL sync — file param", () => {
   });
 
   it("restores the file viewer into the desktop rail on a ?file= reload", () => {
-    // Regression (E2E reload-persistence): the Subagents/Terminals/Todos
+    // Regression (E2E reload-persistence): the Subagents/Terminals
     // panels are checked before the file viewer in the rail content
     // precedence. A ?file= reload must pull the rail to Files so the inline
     // viewer renders instead of another panel shadowing it.
@@ -2784,25 +2778,17 @@ describe("Mobile session menu", () => {
       isLoading: false,
       error: null,
     });
-    useChatStore.setState({
-      todos: [
-        { content: "do a thing", status: "completed", activeForm: "doing a thing" },
-        { content: "do another", status: "pending", activeForm: "doing another" },
-      ],
-    });
-
     renderShell("/c/conv_native");
     openSessionMenu();
 
     // Mirror of the desktop rail's tab strip for a native-wrapper session:
-    // Files · Agents · Tasks. Shells is absent because the only terminal is
+    // Files · Agents. Shells is absent because the only terminal is
     // the vendor pane (the pill's Terminal view — excluded from the shell
     // inventory) and the mocked agent declares no terminals. An unexpected
     // Shells entry means the vendor pane leaked into the inventory.
     expect(screen.getByRole("menuitem", { name: /^Files$/i })).toBeInTheDocument();
     expect(screen.queryByRole("menuitem", { name: /Shells/i })).toBeNull();
     expect(screen.getByRole("menuitem", { name: /Agents/i })).toBeInTheDocument();
-    expect(screen.getByRole("menuitem", { name: /Tasks/i })).toBeInTheDocument();
   });
 
   it("keeps the Terminals entry in terminal-first SDK sessions (no native wrapper)", () => {
@@ -2934,67 +2920,8 @@ describe("Mobile session menu", () => {
     expect(drawer).toHaveAttribute("data-flat-view", "false");
   });
 
-  it("opens the Tasks drawer for a claude-native session with todos", () => {
-    useEnvironmentMock.mockReturnValue({
-      data: { available: true, root: null },
-      isLoading: false,
-    } as unknown as ReturnType<typeof useWorkspaceEnvironment>);
-    mockConversations([
-      {
-        id: "conv_native",
-        permission_level: null,
-        labels: { "omnigent.wrapper": "claude-code-native-ui" },
-      },
-    ]);
-    useChatStore.setState({
-      todos: [{ content: "build the thing", status: "in_progress", activeForm: "building" }],
-    });
-
-    renderShell("/c/conv_native");
-
-    expect(screen.getByTestId("todos-panel-drawer")).toHaveAttribute("data-state", "closed");
-    expect(screen.queryByTestId("todo-panel")).toBeNull();
-
-    openSessionMenu();
-    fireEvent.click(screen.getByRole("menuitem", { name: /Tasks/i }));
-
-    // Failure: openTodosPanel didn't set todosPanelOpen, or the Tasks entry
-    // was gated out despite isClaudeNative + a non-empty todo list.
-    expect(screen.getByTestId("todos-panel-drawer")).toHaveAttribute("data-state", "open");
-    expect(screen.getByTestId("todo-panel")).toBeInTheDocument();
-  });
-
-  it.each([
-    ["codex-native", "conv_codex", "codex-native-ui"],
-    ["pi-native", "conv_pi", "pi-native-ui"],
-  ])("opens the Tasks drawer for a %s session with todos", (_harness, id, wrapper) => {
-    useEnvironmentMock.mockReturnValue({
-      data: { available: true, root: null },
-      isLoading: false,
-    } as unknown as ReturnType<typeof useWorkspaceEnvironment>);
-    mockConversations([
-      {
-        id,
-        permission_level: null,
-        labels: { "omnigent.wrapper": wrapper },
-      },
-    ]);
-    useChatStore.setState({
-      todos: [{ content: "Locate CLI parser", status: "in_progress", activeForm: "Locating" }],
-    });
-
-    renderShell(`/c/${id}`);
-    expect(screen.getByTestId("todos-panel-drawer")).toHaveAttribute("data-state", "closed");
-
-    openSessionMenu();
-    fireEvent.click(screen.getByRole("menuitem", { name: /Tasks/i }));
-
-    expect(screen.getByTestId("todos-panel-drawer")).toHaveAttribute("data-state", "open");
-    expect(screen.getByTestId("todo-panel")).toBeInTheDocument();
-  });
-
   it("keeps the FAB with only the Agents entry for a minimal agent", () => {
-    // available:false → no files; no shells, no todos, no debug. The
+    // available:false → no files; no shells, no debug. The
     // Agents entry is unconditional (badge = 1, the main agent), so the
     // FAB still renders with exactly that entry. A missing FAB means
     // the always-visible Agents rule regressed on mobile.
diff --git a/web/src/shell/AppShell.tsx b/web/src/shell/AppShell.tsx
index 6d4a608480..35d20dc6f7 100644
--- a/web/src/shell/AppShell.tsx
+++ b/web/src/shell/AppShell.tsx
@@ -84,7 +84,6 @@ import {
   type TerminalFirstContextValue,
 } from "./TerminalFirstContext";
 import { TerminalsPanel } from "./TerminalsPanel";
-import { TodoPanel } from "./TodoPanel";
 import { PermissionsModal } from "@/components/PermissionsModal";
 import { KeyboardShortcutsDialog } from "@/components/KeyboardShortcutsDialog";
 import { CommandPalette } from "./CommandPalette";
@@ -270,7 +269,6 @@ export function AppShell() {
   // on a phone they open as full-screen overlays from the session-menu FAB.
   const [subagentsPanelOpen, setSubagentsPanelOpen] = useState(false);
   const [shellsPanelOpen, setShellsPanelOpen] = useState(false);
-  const [todosPanelOpen, setTodosPanelOpen] = useState(false);
   // The right "Workspace" rail (WorkspacePanel) remembers its open/closed
   // state per session. A brand-new session (no saved `open`) follows the
   // Appearance "Workspace panel" default; reopening a session restores how
@@ -378,15 +376,11 @@ export function AppShell() {
   const sessionLabels = { ...activeConv?.labels, ...activeSession?.labels };
   const terminalFirst = sessionLabels["omnigent.ui"] === "terminal";
   const isClaudeNative = sessionLabels["omnigent.wrapper"] === "claude-code-native-ui";
-  const todos = useChatStore((s) => s.todos);
-  // The session.todos contract is harness-agnostic; show Tasks when it has data.
-  const todosSupported = todos.length > 0;
   // Native-CLI wrapper of either family. Keys harness behavior gates
   // (composer slash commands, `/model`); terminal-first SDK sessions
   // (embedded Omnigent REPL terminal) have NO wrapper label and must
   // keep regular chat behavior. See TerminalFirstContext.tsx.
   const isNativeWrapper = isNativeWrapperLabel(sessionLabels["omnigent.wrapper"]);
-  const todosCompleted = todos.filter((t) => t.status === "completed").length;
   // Used for the header "Back to parent" link, which is hidden on
   // top-level sessions. The Subagents tab itself is always visible —
   // it lists the root's children plus a "main" entry, so the user
@@ -550,24 +544,23 @@ export function AppShell() {
         // ``railTerminals`` starts empty while the agent loads, so native
         // sessions don't flash the tab.
         terminals: !hideTerminalsTab && railTerminals.length > 0,
-        todos: todosSupported && todos.length > 0,
       }) as const,
-    [showFilesPanel, hideTerminalsTab, railTerminals.length, todosSupported, todos.length],
+    [showFilesPanel, hideTerminalsTab, railTerminals.length],
   );
   // Whether the rail has anything at all to show. When false the workspace
   // card doesn't mount and the header hides its collapse toggle — a
-  // no-filesystem agent with no terminals/sub-agents/todos would otherwise
+  // no-filesystem agent with no terminals/sub-agents would otherwise
   // render an empty white card with no way to dismiss it.
   const hasRailContent = Object.values(railTabsAvailable).some(Boolean);
   // Keep the selected tab valid. When the current tab disappears — files
   // panel turns off, or the Shells tab hides (native wrapper / no shell
   // and no shell access) — fall back to the first still-visible tab in
-  // display order (Files · Agents · Shells · Tasks · Browser). Picking the first
+  // display order (Files · Agents · Shells · Browser). Picking the first
   // available (rather than ping-ponging between two effects) keeps this
   // convergent even when several tabs vanish at once.
   useEffect(() => {
     if (railTabsAvailable[rightRailTab]) return;
-    const next = (["files", "subagents", "terminals", "todos", "browser"] as const).find(
+    const next = (["files", "subagents", "terminals", "browser"] as const).find(
       (t) => railTabsAvailable[t],
     );
     if (next) setRightRailTab(next);
@@ -723,7 +716,6 @@ export function AppShell() {
     setFilesPanelOpen(false);
     setSubagentsPanelOpen(false);
     setShellsPanelOpen(false);
-    setTodosPanelOpen(false);
     setFilesPanelShowHidden(false);
     if (!conversationId) {
       // No session → no rail; false (not the open default) so rail-gated
@@ -791,7 +783,7 @@ export function AppShell() {
       if (wasMaximized) restoreSidebarAfterMaximize();
       return false;
     });
-    // A selected file must be visible in the rail. The Agents/Todos/Terminals
+    // A selected file must be visible in the rail. The Agents/Terminals
     // tabs don't render the inline viewer, so pull the rail to Files.
     if (nextSelected && nextTab !== "files") {
       nextTab = "files";
@@ -901,13 +893,10 @@ export function AppShell() {
       setExecutionLogsKey(null); // close execution-logs panel
       setFilesPanelOpen(false); // close files drawer so the viewer is unobscured
       setSubagentsPanelOpen(false); // close mobile agents drawer
-      setTodosPanelOpen(false); // close mobile tasks drawer
       // Pull the rail to the Files tab when parked on a tab where the viewer
-      // won't render (Terminals, Subagents, Todos). The Files tab surfaces the
+      // won't render (Terminals, Subagents). The Files tab surfaces the
       // FileViewer inline, so leave it undisturbed.
-      setRightRailTab((prev) =>
-        prev === "terminals" || prev === "subagents" || prev === "todos" ? "files" : prev,
-      );
+      setRightRailTab((prev) => (prev === "terminals" || prev === "subagents" ? "files" : prev));
       // Reveal the rail so the viewer is actually visible — a session the user
       // collapsed (or one that started collapsed via the Appearance default)
       // would otherwise route the file into an invisible panel. Persist
@@ -1116,7 +1105,6 @@ export function AppShell() {
     setFilesPanelOpen(false); // close files drawer
     setSubagentsPanelOpen(false); // close mobile agents drawer
     setShellsPanelOpen(false); // close mobile shells drawer
-    setTodosPanelOpen(false); // close mobile tasks drawer
     setPanelInitialKey(key);
   }
 
@@ -1136,7 +1124,6 @@ export function AppShell() {
       setFilesPanelOpen(false);
       setSubagentsPanelOpen(false);
       setShellsPanelOpen(false);
-      setTodosPanelOpen(false);
       setRightPanelOpen(true);
       if (conversationId) writeSessionWorkspaceState(conversationId, { open: true });
     },
@@ -1184,7 +1171,6 @@ export function AppShell() {
     setFilesPanelOpen(false); // close files drawer
     setSubagentsPanelOpen(false); // close mobile agents drawer
     setShellsPanelOpen(false); // close mobile shells drawer
-    setTodosPanelOpen(false); // close mobile tasks drawer
     setExecutionLogsKey(key);
   }
 
@@ -1198,7 +1184,6 @@ export function AppShell() {
     setExecutionLogsKey(null); // close execution-logs panel
     setSubagentsPanelOpen(false); // close mobile agents drawer
     setShellsPanelOpen(false); // close mobile shells drawer
-    setTodosPanelOpen(false); // close mobile tasks drawer
     setFilesPanelOpen(true);
   }
 
@@ -1211,7 +1196,6 @@ export function AppShell() {
     setExecutionLogsKey(null); // close execution-logs panel
     setFilesPanelOpen(false); // close files drawer
     setShellsPanelOpen(false); // close mobile shells drawer
-    setTodosPanelOpen(false); // close mobile tasks drawer
     setSubagentsPanelOpen(true);
   }
 
@@ -1225,23 +1209,9 @@ export function AppShell() {
     setExecutionLogsKey(null); // close execution-logs panel
     setFilesPanelOpen(false); // close files drawer
     setSubagentsPanelOpen(false); // close mobile agents drawer
-    setTodosPanelOpen(false); // close mobile tasks drawer
     setShellsPanelOpen(true);
   }
 
-  // Mobile FAB → "Tasks" opens the todo list (the desktop rail's Tasks tab)
-  // as a full-screen drawer.
-  function openTodosPanel() {
-    setSelectedFilePath(null); // close file viewer
-    clearFileViewerUrl();
-    setPanelInitialKey(null); // close terminals panel
-    setExecutionLogsKey(null); // close execution-logs panel
-    setFilesPanelOpen(false); // close files drawer
-    setSubagentsPanelOpen(false); // close mobile agents drawer
-    setShellsPanelOpen(false); // close mobile shells drawer
-    setTodosPanelOpen(true);
-  }
-
   function openMainExecutionLog() {
     // Mobile FAB → "Execution logs" jumps straight to the main thread.
     // Children are reachable via the panel's tab switcher.
@@ -1453,7 +1423,6 @@ export function AppShell() {
                     filesPanelOpen,
                     subagentsPanelOpen,
                     shellsPanelOpen,
-                    todosPanelOpen,
                     hideTerminalsTab,
                     // Mobile: reachable when a shell exists OR the agent
                     // declares shell access (so the drawer's "+ New shell" row
@@ -1462,9 +1431,6 @@ export function AppShell() {
                     showShellsTab:
                       !hideTerminalsTab && (railTerminals.length > 0 || agentSupportsShells),
                     terminalsLength: railTerminals.length,
-                    todosSupported,
-                    todosCompleted,
-                    todosTotal: todos.length,
                     debugMode,
                     changedCount,
                     subagentsWorking,
@@ -1472,7 +1438,6 @@ export function AppShell() {
                     onOpenFiles: openFilesPanel,
                     onOpenShells: openShellsPanel,
                     onOpenSubagents: openSubagentsPanel,
-                    onOpenTodos: openTodosPanel,
                     onOpenMainExecutionLog: openMainExecutionLog,
                   }}
                 />
@@ -1519,9 +1484,6 @@ export function AppShell() {
                     terminalsLength={railTerminals.length}
                     subagentsWorking={subagentsWorking}
                     agentCount={agentCount}
-                    todosSupported={todosSupported}
-                    todosCompleted={todosCompleted}
-                    todosTotal={todos.length}
                     rootSessionId={rootSessionId}
                     selectedFilePath={selectedFilePath}
                     openFiles={openFiles}
@@ -1615,16 +1577,6 @@ export function AppShell() {
                   />
                 </MobilePanelDrawer>
               )}
-              {conversationId && (
-                <MobilePanelDrawer
-                  open={todosPanelOpen}
-                  title="Tasks"
-                  onClose={() => setTodosPanelOpen(false)}
-                  testId="todos-panel-drawer"
-                >
-                  <TodoPanel frameless />
-                </MobilePanelDrawer>
-              )}
               {/* Mobile-only push panel — on desktop the viewer lives inside the inline aside. */}
               {conversationId && selectedFilePath !== null && (
                 <div className="md:hidden">
diff --git a/web/src/shell/ChatHeader.test.tsx b/web/src/shell/ChatHeader.test.tsx
index 5267ca19e9..05626ea5dc 100644
--- a/web/src/shell/ChatHeader.test.tsx
+++ b/web/src/shell/ChatHeader.test.tsx
@@ -21,13 +21,9 @@ const mobileMenu = {
   filesPanelOpen: false,
   subagentsPanelOpen: false,
   shellsPanelOpen: false,
-  todosPanelOpen: false,
   hideTerminalsTab: false,
   showShellsTab: false,
   terminalsLength: 0,
-  todosSupported: false,
-  todosCompleted: 0,
-  todosTotal: 0,
   debugMode: false,
   changedCount: 0,
   subagentsWorking: 0,
@@ -35,7 +31,6 @@ const mobileMenu = {
   onOpenFiles: () => {},
   onOpenShells: () => {},
   onOpenSubagents: () => {},
-  onOpenTodos: () => {},
   onOpenMainExecutionLog: () => {},
 };
 
diff --git a/web/src/shell/ChatHeader.tsx b/web/src/shell/ChatHeader.tsx
index 8c68ea58e5..dca4f9f167 100644
--- a/web/src/shell/ChatHeader.tsx
+++ b/web/src/shell/ChatHeader.tsx
@@ -5,7 +5,6 @@ import {
   FileIcon,
   InfoIcon,
   ListIcon,
-  ListTodoIcon,
   PanelLeftIcon,
   PanelRightCloseIcon,
   PanelRightIcon,
@@ -51,20 +50,12 @@ interface MobileSessionMenuProps {
   subagentsPanelOpen: boolean;
   /** True while the mobile shells drawer is open. */
   shellsPanelOpen: boolean;
-  /** True while the mobile tasks drawer is open. */
-  todosPanelOpen: boolean;
   /** Hide the Shells entry (claude-native sub-agents only). */
   hideTerminalsTab: boolean;
   /** Whether the Shells entry is available. */
   showShellsTab: boolean;
   /** Number of open terminals (entry badge). */
   terminalsLength: number;
-  /** Whether the session publishes a todo list (gates the Tasks entry). */
-  todosSupported: boolean;
-  /** Completed todo count (Tasks entry badge numerator). */
-  todosCompleted: number;
-  /** Total todo count (Tasks entry badge denominator + visibility). */
-  todosTotal: number;
   /** Debug mode — surfaces the Logs entry. */
   debugMode: boolean;
   /** Changed-file count (Files entry badge). */
@@ -82,8 +73,6 @@ interface MobileSessionMenuProps {
   onOpenShells: () => void;
   /** Open the mobile agents drawer. */
   onOpenSubagents: () => void;
-  /** Open the mobile tasks drawer. */
-  onOpenTodos: () => void;
   /** Open the main execution-log push panel. */
   onOpenMainExecutionLog: () => void;
 }
@@ -131,7 +120,7 @@ interface ChatHeaderProps {
   showFilesPanel: boolean;
   /**
    * Whether the right workspace rail has at least one available tab
-   * (files, terminals, sub-agents, or todos). Gates the desktop
+   * (files, terminals, or sub-agents). Gates the desktop
    * collapse toggle — with no rail content the panel doesn't mount
    * (see AppShell), so a toggle would flip an invisible card.
    */
@@ -421,7 +410,6 @@ export function ChatHeader({
           !mobileMenu.filesPanelOpen &&
           !mobileMenu.subagentsPanelOpen &&
           !mobileMenu.shellsPanelOpen &&
-          !mobileMenu.todosPanelOpen &&
           (hasRailContent || mobileMenu.debugMode) && (
             <DropdownMenu>
               <DropdownMenuTrigger asChild>
@@ -495,18 +483,6 @@ export function ChatHeader({
                     )}
                   </DropdownMenuItem>
                 )}
-                {mobileMenu.todosSupported && mobileMenu.todosTotal > 0 && (
-                  <DropdownMenuItem
-                    onSelect={mobileMenu.onOpenTodos}
-                    className="gap-2.5 px-2.5 py-2 text-ui"
-                  >
-                    <ListTodoIcon className="size-4" />
-                    Tasks
-                    <span className={cn(TAB_BADGE_BASE, "ml-auto bg-muted text-muted-foreground")}>
-                      {mobileMenu.todosCompleted}/{mobileMenu.todosTotal}
-                    </span>
-                  </DropdownMenuItem>
-                )}
                 {mobileMenu.debugMode && (
                   <DropdownMenuItem
                     onSelect={mobileMenu.onOpenMainExecutionLog}
diff --git a/web/src/shell/TodoPanel.test.tsx b/web/src/shell/TodoPanel.test.tsx
deleted file mode 100644
index 7d9d5ec8ac..0000000000
--- a/web/src/shell/TodoPanel.test.tsx
+++ /dev/null
@@ -1,84 +0,0 @@
-// Tests for TodoPanel — the small presentational panel that mirrors Claude
-// Code's todo list from useChatStore.todos. We mock the store so the panel's
-// own rendering (empty state, per-status icon/strikethrough, activeForm
-// subtitle) is exercised in isolation.
-
-import { cleanup, render, screen } from "@testing-library/react";
-import { afterEach, describe, expect, it, vi } from "vitest";
-
-interface TodoItem {
-  content: string;
-  status: "pending" | "in_progress" | "completed";
-  activeForm: string;
-}
-
-// The store is a selector hook: useChatStore((s) => s.todos). Mock it to feed a
-// controllable todos array per test.
-const h = vi.hoisted(() => ({ todos: [] as TodoItem[] }));
-vi.mock("@/store/chatStore", () => ({
-  useChatStore: (selector: (s: { todos: TodoItem[] }) => unknown) => selector({ todos: h.todos }),
-}));
-
-import { TodoPanel } from "./TodoPanel";
-
-afterEach(() => {
-  cleanup();
-  h.todos = [];
-});
-
-describe("TodoPanel", () => {
-  it("renders nothing when the todo list is empty", () => {
-    // WHY: the panel must occupy no space for sessions with no todos — it
-    // returns null, so the container has no DOM children.
-    h.todos = [];
-    const { container } = render(<TodoPanel />);
-    expect(container.firstChild).toBeNull();
-  });
-
-  it("renders one list item per todo with its content", () => {
-    // WHY: confirms the map over todos renders every item's content text.
-    h.todos = [
-      { content: "Write tests", status: "pending", activeForm: "Writing tests" },
-      { content: "Ship it", status: "completed", activeForm: "Shipping it" },
-    ];
-    render(<TodoPanel />);
-    expect(screen.getByText("Write tests")).toBeInTheDocument();
-    expect(screen.getByText("Ship it")).toBeInTheDocument();
-    expect(screen.getAllByRole("listitem")).toHaveLength(2);
-  });
-
-  it("strikes through and dims a completed todo", () => {
-    // WHY: completed todos get line-through + opacity-50; a regression in the
-    // status-conditional classes would leave them looking active.
-    h.todos = [{ content: "Done thing", status: "completed", activeForm: "Doing thing" }];
-    render(<TodoPanel />);
-    const span = screen.getByText("Done thing");
-    expect(span.className).toContain("line-through");
-    expect(span.closest("li")?.className).toContain("opacity-50");
-  });
-
-  it("shows the activeForm subtitle for an in_progress todo when it differs", () => {
-    // WHY: an in-progress item surfaces its activeForm ("Doing X") under the
-    // content — this is the live-status affordance.
-    h.todos = [{ content: "Build feature", status: "in_progress", activeForm: "Building feature" }];
-    render(<TodoPanel />);
-    expect(screen.getByText("Build feature")).toBeInTheDocument();
-    expect(screen.getByText("Building feature")).toBeInTheDocument();
-  });
-
-  it("omits the activeForm subtitle when it equals the content", () => {
-    // WHY: the guard `activeForm !== content` prevents a redundant duplicate
-    // line; identical text must appear exactly once.
-    h.todos = [{ content: "Same text", status: "in_progress", activeForm: "Same text" }];
-    render(<TodoPanel />);
-    expect(screen.getAllByText("Same text")).toHaveLength(1);
-  });
-
-  it("does not show the activeForm subtitle for a non-in_progress todo", () => {
-    // WHY: the subtitle is gated on in_progress; a pending todo with a distinct
-    // activeForm must not render it.
-    h.todos = [{ content: "Pending thing", status: "pending", activeForm: "Pending action" }];
-    render(<TodoPanel />);
-    expect(screen.queryByText("Pending action")).toBeNull();
-  });
-});
diff --git a/web/src/shell/TodoPanel.tsx b/web/src/shell/TodoPanel.tsx
deleted file mode 100644
index a60dea6d11..0000000000
--- a/web/src/shell/TodoPanel.tsx
+++ /dev/null
@@ -1,76 +0,0 @@
-import { CheckCircle2Icon, CircleIcon, CircleDotIcon } from "lucide-react";
-import { useChatStore } from "@/store/chatStore";
-import { cn } from "@/lib/utils";
-
-interface TodoItem {
-  content: string;
-  status: "pending" | "in_progress" | "completed";
-  activeForm: string;
-}
-
-interface TodoPanelProps {
-  frameless?: boolean;
-}
-
-function TodoIcon({ status }: { status: TodoItem["status"] }) {
-  if (status === "completed") {
-    return <CheckCircle2Icon className="h-3 w-3 shrink-0 text-green-500" />;
-  }
-  if (status === "in_progress") {
-    return <CircleDotIcon className="h-3 w-3 shrink-0 text-blue-500" />;
-  }
-  return <CircleIcon className="h-3 w-3 shrink-0 text-muted-foreground" />;
-}
-
-/**
- * Displays the active task list published by any harness.
- *
- * Reads from `useChatStore.todos`, populated by the session snapshot and
- * `session.todos` SSE updates. Renders nothing while the list is empty.
- */
-export function TodoPanel({ frameless = false }: TodoPanelProps) {
-  const todos = useChatStore((s) => s.todos);
-
-  if (todos.length === 0) return null;
-
-  return (
-    <div
-      className={cn(
-        "flex flex-1 flex-col bg-card",
-        !frameless && "border-t border-b border-border",
-      )}
-    >
-      <ul className="overflow-y-auto px-2 py-2">
-        {todos.map((todo, i) => (
-          <li
-            // eslint-disable-next-line react/no-array-index-key
-            key={i}
-            className={cn(
-              "flex items-center gap-2 rounded px-1.5 py-1 text-sm",
-              todo.status === "completed" && "opacity-50",
-            )}
-          >
-            <TodoIcon status={todo.status} />
-            <span className="min-w-0">
-              <span
-                className={cn(
-                  "block break-words leading-snug",
-                  todo.status === "completed" && "line-through",
-                )}
-              >
-                {todo.content}
-              </span>
-              {todo.status === "in_progress" &&
-                todo.activeForm &&
-                todo.activeForm !== todo.content && (
-                  <span className="block truncate italic text-muted-foreground">
-                    {todo.activeForm}
-                  </span>
-                )}
-            </span>
-          </li>
-        ))}
-      </ul>
-    </div>
-  );
-}
diff --git a/web/src/shell/WorkspacePanel.test.tsx b/web/src/shell/WorkspacePanel.test.tsx
index 8676b417ee..2d6353f64d 100644
--- a/web/src/shell/WorkspacePanel.test.tsx
+++ b/web/src/shell/WorkspacePanel.test.tsx
@@ -27,9 +27,6 @@ vi.mock("./InlineTerminalsSection", () => ({
 vi.mock("./SubagentsPanel", () => ({
   SubagentsPanel: () => <div data-testid="subagents-stub" />,
 }));
-vi.mock("./TodoPanel", () => ({
-  TodoPanel: () => <div data-testid="todos-stub" />,
-}));
 vi.mock("@/components/BrowserPane/BrowserPane", () => ({
   BrowserPane: ({ conversationId }: { conversationId: string }) => (
     <div data-testid="browser-pane-stub">{conversationId}</div>
@@ -110,9 +107,6 @@ function renderWorkspace(
         terminalsLength={0}
         subagentsWorking={0}
         agentCount={1}
-        todosSupported={false}
-        todosCompleted={0}
-        todosTotal={0}
         rootSessionId={null}
         selectedFilePath={overrides.selectedFilePath ?? null}
         openFiles={overrides.openFiles ?? []}
diff --git a/web/src/shell/WorkspacePanel.tsx b/web/src/shell/WorkspacePanel.tsx
index faefe320e1..2c2bb8b5a9 100644
--- a/web/src/shell/WorkspacePanel.tsx
+++ b/web/src/shell/WorkspacePanel.tsx
@@ -4,7 +4,6 @@ import {
   FileIcon,
   FilesIcon,
   GlobeIcon,
-  ListTodoIcon,
   Loader2Icon,
   MaximizeIcon,
   MinimizeIcon,
@@ -38,7 +37,6 @@ import { FileViewer } from "./FileViewer";
 import type { ChangedSort } from "./FlatFileList";
 import { InlineTerminalsSection } from "./InlineTerminalsSection";
 import { SubagentsPanel } from "./SubagentsPanel";
-import { TodoPanel } from "./TodoPanel";
 import { useTerminalStatuses } from "./useTerminalStatuses";
 import { type RightRailTab, TAB_BADGE_BASE } from "./railTabs";
 
@@ -256,7 +254,7 @@ function NewTabMenu({
 
 // ---------------------------------------------------------------------------
 // FileTabsStrip — open file tabs rendered in the top rail tab strip, as peers
-// of the fixed Files/Terminals/Agents/Tasks tabs. Each tab is a cell with the
+// of the fixed Files/Terminals/Agents tabs. Each tab is a cell with the
 // file's basename and an "x" close button. Clicking the cell activates the
 // tab (opening its viewer); clicking the x closes it. No own scroll container
 // or flex-1: the parent strip's overflow-x-auto scrolls the whole row.
@@ -537,12 +535,6 @@ interface WorkspacePanelProps {
    * badge denominator) — starts at 1 for a lone agent.
    */
   agentCount: number;
-  /** Whether the session publishes a todo list (gates the Tasks tab). */
-  todosSupported: boolean;
-  /** Number of completed todos (Tasks tab badge numerator). */
-  todosCompleted: number;
-  /** Total todo count (Tasks tab badge denominator + visibility gate). */
-  todosTotal: number;
   /**
    * The "root" session id for the Agents tab — the active session's
    * parent when inside a child, else the active id. May be null while
@@ -600,7 +592,7 @@ interface WorkspacePanelProps {
  * WorkspacePanel — the desktop right "Workspace" rail, rendered as a
  * floating card (bg-card, rounded, bordered, shadowed) sitting below the
  * full-width chat header band. Internally tabbed between Files,
- * Terminals, Agents and Tasks so each can claim the full rail height
+ * Terminals and Agents so each can claim the full rail height
  * instead of competing for a vertically-split slot.
  *
  * Desktop-only (``hidden md:flex``): on mobile the rail's contents are
@@ -625,9 +617,6 @@ export function WorkspacePanel({
   terminalsLength,
   subagentsWorking,
   agentCount,
-  todosSupported,
-  todosCompleted,
-  todosTotal,
   rootSessionId,
   selectedFilePath,
   openFiles,
@@ -700,7 +689,7 @@ export function WorkspacePanel({
           className="absolute inset-y-0 left-0 z-10 w-1 cursor-col-resize hover:bg-primary/30 active:bg-primary/50 transition-colors"
         />
       )}
-      {/* Tab strip, in display order Files · Agents · Shells · Tasks.
+      {/* Tab strip, in display order Files · Agents · Shells.
           Files and Agents are always present (the Agents panel lists at
           least the main agent). Shells shows whenever AppShell's gate
           allows it (the agent declares shell access, or a shell already
@@ -780,21 +769,6 @@ export function WorkspacePanel({
                 </TabsTrigger>
               </WorkspaceTabTooltip>
             )}
-            {todosSupported && todosTotal > 0 && (
-              <WorkspaceTabTooltip label="Tasks">
-                <TabsTrigger
-                  value="todos"
-                  aria-label={`Tasks ${todosCompleted} of ${todosTotal} completed`}
-                  className="size-8 shrink-0 rounded-md p-0 hover:bg-muted"
-                >
-                  <ListTodoIcon className="size-4" />
-                  <span className="sr-only">Tasks</span>
-                  <span className="sr-only">
-                    {todosCompleted}/{todosTotal}
-                  </span>
-                </TabsTrigger>
-              </WorkspaceTabTooltip>
-            )}
             {showBrowserTab && (
               <WorkspaceTabTooltip label="Browser">
                 <TabsTrigger
@@ -914,8 +888,6 @@ export function WorkspacePanel({
           <BrowserPane conversationId={conversationId} className="min-h-0 flex-1" />
         ) : rightRailTab === "subagents" && rootSessionId ? (
           <SubagentsPanel conversationId={conversationId} rootSessionId={rootSessionId} />
-        ) : rightRailTab === "todos" && todosSupported ? (
-          <TodoPanel frameless />
         ) : rightRailTab === "terminals" && showShellsTab ? (
           <InlineTerminalsSection conversationId={conversationId} onExpand={openTerminalTab} />
         ) : (
diff --git a/web/src/shell/railTabs.ts b/web/src/shell/railTabs.ts
index 4aa780c229..fb118e5887 100644
--- a/web/src/shell/railTabs.ts
+++ b/web/src/shell/railTabs.ts
@@ -5,7 +5,7 @@
  */
 
 /** The selectable tabs in the right workspace rail, in display order. */
-export type RightRailTab = "files" | "subagents" | "terminals" | "todos" | "browser";
+export type RightRailTab = "files" | "subagents" | "terminals" | "browser";
 
 /**
  * Count/status badge geometry. Fixed height with min-width == height keeps a