diff --git a/apps/web/src/components/mission-control/__tests__/GlobalAgentRoster.test.tsx b/apps/web/src/components/mission-control/__tests__/GlobalAgentRoster.test.tsx
new file mode 100644
index 0000000..76f0fe8
--- /dev/null
+++ b/apps/web/src/components/mission-control/__tests__/GlobalAgentRoster.test.tsx
@@ -0,0 +1,133 @@
+import type { ReactElement } from "react";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { render, screen, waitFor } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { GlobalAgentRoster } from "../GlobalAgentRoster";
+
+const { mockApiGet, mockApiPost } = vi.hoisted(() => ({
+  mockApiGet: vi.fn(),
+  mockApiPost: vi.fn(),
+}));
+
+vi.mock("@/lib/api/client", () => ({
+  apiGet: mockApiGet,
+  apiPost: mockApiPost,
+}));
+
+function renderWithQueryClient(ui: ReactElement): void {
+  const queryClient = new QueryClient({
+    defaultOptions: {
+      queries: { retry: false, gcTime: 0 },
+      mutations: { retry: false },
+    },
+  });
+
+  render(<QueryClientProvider client={queryClient}>{ui}</QueryClientProvider>);
+}
+
+describe("GlobalAgentRoster (__tests__)", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.stubGlobal("fetch", vi.fn());
+    mockApiGet.mockReset();
+    mockApiPost.mockReset();
+  });
+
+  afterEach(() => {
+    vi.unstubAllGlobals();
+  });
+
+  it("renders empty state when no sessions", async () => {
+    mockApiGet.mockResolvedValueOnce([]);
+
+    renderWithQueryClient(<GlobalAgentRoster />);
+
+    expect(await screen.findByText("No active agents")).toBeInTheDocument();
+  });
+
+  it("renders session rows grouped by provider", async () => {
+    mockApiGet.mockResolvedValueOnce([
+      {
+        id: "sess-int-123456",
+        providerId: "internal",
+        providerType: "internal",
+        status: "active",
+        createdAt: "2026-03-07T19:00:00.000Z",
+        updatedAt: "2026-03-07T19:00:00.000Z",
+      },
+      {
+        id: "sess-rem-654321",
+        providerId: "remote-a",
+        providerType: "remote",
+        status: "paused",
+        createdAt: "2026-03-07T19:00:00.000Z",
+        updatedAt: "2026-03-07T19:00:00.000Z",
+      },
+    ]);
+
+    renderWithQueryClient(<GlobalAgentRoster />);
+
+    expect(await screen.findByText("internal")).toBeInTheDocument();
+    expect(screen.getByText("remote-a (remote)")).toBeInTheDocument();
+    expect(screen.getByText("sess-int")).toBeInTheDocument();
+    expect(screen.getByText("sess-rem")).toBeInTheDocument();
+  });
+
+  it("kill button per row calls the API", async () => {
+    const user = userEvent.setup();
+
+    mockApiGet.mockResolvedValueOnce([
+      {
+        id: "killme123456",
+        providerId: "internal",
+        providerType: "internal",
+        status: "active",
+        createdAt: "2026-03-07T19:00:00.000Z",
+        updatedAt: "2026-03-07T19:00:00.000Z",
+      },
+    ]);
+
+    mockApiPost.mockResolvedValue({ message: "ok" });
+
+    renderWithQueryClient(<GlobalAgentRoster />);
+
+    const killButton = await screen.findByRole("button", { name: "Kill session killme12" });
+    await user.click(killButton);
+
+    await waitFor(() => {
+      expect(mockApiPost).toHaveBeenCalledWith("/api/mission-control/sessions/killme123456/kill", {
+        force: false,
+      });
+    });
+  });
+
+  it("onSelectSession callback fires on row click", async () => {
+    const user = userEvent.setup();
+    const onSelectSession = vi.fn();
+
+    mockApiGet.mockResolvedValueOnce([
+      {
+        id: "selectme123456",
+        providerId: "internal",
+        providerType: "internal",
+        status: "active",
+        createdAt: "2026-03-07T19:00:00.000Z",
+        updatedAt: "2026-03-07T19:00:00.000Z",
+      },
+    ]);
+
+    renderWithQueryClient(<GlobalAgentRoster onSelectSession={onSelectSession} />);
+
+    const sessionLabel = await screen.findByText("selectme");
+    const row = sessionLabel.closest('[role="button"]');
+
+    if (!row) {
+      throw new Error("Expected session row for selectme123456");
+    }
+
+    await user.click(row);
+
+    expect(onSelectSession).toHaveBeenCalledWith("selectme123456");
+  });
+});
diff --git a/apps/web/src/components/mission-control/__tests__/KillAllDialog.test.tsx b/apps/web/src/components/mission-control/__tests__/KillAllDialog.test.tsx
new file mode 100644
index 0000000..fafb03e
--- /dev/null
+++ b/apps/web/src/components/mission-control/__tests__/KillAllDialog.test.tsx
@@ -0,0 +1,96 @@
+import { render, screen, waitFor } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import type { AgentSession } from "@mosaic/shared";
+import { KillAllDialog } from "../KillAllDialog";
+import * as apiClient from "@/lib/api/client";
+
+vi.mock("@/lib/api/client", () => ({
+  apiPost: vi.fn(),
+}));
+
+const mockApiPost = vi.mocked(apiClient.apiPost);
+const baseDate = new Date("2026-03-07T14:00:00.000Z");
+
+const sessions: AgentSession[] = [
+  {
+    id: "session-internal-1",
+    providerId: "provider-internal-1",
+    providerType: "internal",
+    status: "active",
+    createdAt: baseDate,
+    updatedAt: baseDate,
+  },
+  {
+    id: "session-internal-2",
+    providerId: "provider-internal-2",
+    providerType: "internal",
+    status: "paused",
+    createdAt: baseDate,
+    updatedAt: baseDate,
+  },
+  {
+    id: "session-external-1",
+    providerId: "provider-openclaw-1",
+    providerType: "openclaw",
+    status: "active",
+    createdAt: baseDate,
+    updatedAt: baseDate,
+  },
+];
+
+describe("KillAllDialog (__tests__)", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.stubGlobal("fetch", vi.fn());
+    mockApiPost.mockResolvedValue({ message: "killed" } as never);
+  });
+
+  it('Confirm button disabled until "KILL ALL" typed exactly', async () => {
+    const user = userEvent.setup();
+
+    render(<KillAllDialog sessions={sessions} />);
+
+    await user.click(screen.getByRole("button", { name: "Kill All" }));
+
+    const input = screen.getByLabelText("Type KILL ALL to confirm");
+    const confirmButton = screen.getByRole("button", { name: "Kill All Agents" });
+
+    expect(confirmButton).toBeDisabled();
+
+    await user.type(input, "kill all");
+    expect(confirmButton).toBeDisabled();
+
+    await user.clear(input);
+    await user.type(input, "KILL ALL");
+    expect(confirmButton).toBeEnabled();
+  });
+
+  it("fires kill API for each session on confirm", async () => {
+    const user = userEvent.setup();
+
+    render(<KillAllDialog sessions={sessions} />);
+
+    await user.click(screen.getByRole("button", { name: "Kill All" }));
+    await user.click(screen.getByLabelText("All providers (3)"));
+    await user.type(screen.getByLabelText("Type KILL ALL to confirm"), "KILL ALL");
+    await user.click(screen.getByRole("button", { name: "Kill All Agents" }));
+
+    await waitFor(() => {
+      expect(mockApiPost).toHaveBeenCalledTimes(3);
+    });
+
+    expect(mockApiPost).toHaveBeenCalledWith(
+      "/api/mission-control/sessions/session-internal-1/kill",
+      { force: true }
+    );
+    expect(mockApiPost).toHaveBeenCalledWith(
+      "/api/mission-control/sessions/session-internal-2/kill",
+      { force: true }
+    );
+    expect(mockApiPost).toHaveBeenCalledWith(
+      "/api/mission-control/sessions/session-external-1/kill",
+      { force: true }
+    );
+  });
+});
diff --git a/apps/web/src/components/mission-control/__tests__/OrchestratorPanel.test.tsx b/apps/web/src/components/mission-control/__tests__/OrchestratorPanel.test.tsx
new file mode 100644
index 0000000..4b185ac
--- /dev/null
+++ b/apps/web/src/components/mission-control/__tests__/OrchestratorPanel.test.tsx
@@ -0,0 +1,93 @@
+import { render, screen } from "@testing-library/react";
+import { beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import { OrchestratorPanel } from "../OrchestratorPanel";
+import * as missionControlHooks from "@/hooks/useMissionControl";
+
+vi.mock("@/hooks/useMissionControl", () => ({
+  useSessionStream: vi.fn(),
+  useSessions: vi.fn(),
+}));
+
+vi.mock("@/components/mission-control/PanelControls", () => ({
+  PanelControls: (): React.JSX.Element => <div data-testid="panel-controls" />,
+}));
+
+vi.mock("@/components/mission-control/BargeInInput", () => ({
+  BargeInInput: ({ sessionId }: { sessionId: string }): React.JSX.Element => (
+    <div data-testid="barge-in-input">barge-in:{sessionId}</div>
+  ),
+}));
+
+vi.mock("date-fns", () => ({
+  formatDistanceToNow: (): string => "moments ago",
+}));
+
+const mockUseSessionStream = vi.mocked(missionControlHooks.useSessionStream);
+const mockUseSessions = vi.mocked(missionControlHooks.useSessions);
+
+beforeAll(() => {
+  Object.defineProperty(window.HTMLElement.prototype, "scrollIntoView", {
+    configurable: true,
+    value: vi.fn(),
+  });
+});
+
+describe("OrchestratorPanel (__tests__)", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+
+    mockUseSessionStream.mockReturnValue({
+      messages: [],
+      status: "connected",
+      error: null,
+    });
+
+    mockUseSessions.mockReturnValue({
+      sessions: [],
+      loading: false,
+      error: null,
+    });
+  });
+
+  it("renders empty state when no sessionId", () => {
+    render(<OrchestratorPanel />);
+
+    expect(screen.getByText("Select an agent to view its stream")).toBeInTheDocument();
+  });
+
+  it("renders connection indicator", () => {
+    const { container } = render(<OrchestratorPanel sessionId="session-1" />);
+
+    expect(screen.getByText("Connected")).toBeInTheDocument();
+    expect(container.querySelector(".bg-emerald-500")).toBeInTheDocument();
+  });
+
+  it("renders message list when messages are present", () => {
+    mockUseSessionStream.mockReturnValue({
+      messages: [
+        {
+          id: "msg-1",
+          sessionId: "session-1",
+          role: "assistant",
+          content: "Mission update one",
+          timestamp: "2026-03-07T21:00:00.000Z",
+        },
+        {
+          id: "msg-2",
+          sessionId: "session-1",
+          role: "tool",
+          content: "Mission update two",
+          timestamp: "2026-03-07T21:00:01.000Z",
+        },
+      ],
+      status: "connected",
+      error: null,
+    });
+
+    render(<OrchestratorPanel sessionId="session-1" />);
+
+    expect(screen.getByText("Mission update one")).toBeInTheDocument();
+    expect(screen.getByText("Mission update two")).toBeInTheDocument();
+    expect(screen.queryByText("Waiting for messages...")).not.toBeInTheDocument();
+  });
+});
diff --git a/apps/web/src/components/mission-control/__tests__/PanelControls.test.tsx b/apps/web/src/components/mission-control/__tests__/PanelControls.test.tsx
new file mode 100644
index 0000000..5ac15db
--- /dev/null
+++ b/apps/web/src/components/mission-control/__tests__/PanelControls.test.tsx
@@ -0,0 +1,70 @@
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { render, screen, waitFor } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { PanelControls } from "../PanelControls";
+import * as apiClient from "@/lib/api/client";
+
+vi.mock("@/lib/api/client", () => ({
+  apiPost: vi.fn(),
+}));
+
+const mockApiPost = vi.mocked(apiClient.apiPost);
+
+function renderPanelControls(status: string): void {
+  const queryClient = new QueryClient({
+    defaultOptions: {
+      queries: { retry: false },
+      mutations: { retry: false },
+    },
+  });
+
+  render(
+    <QueryClientProvider client={queryClient}>
+      <PanelControls sessionId="session-1" status={status} />
+    </QueryClientProvider>
+  );
+}
+
+describe("PanelControls (__tests__)", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.stubGlobal("fetch", vi.fn());
+    mockApiPost.mockResolvedValue({ message: "ok" } as never);
+  });
+
+  afterEach(() => {
+    vi.unstubAllGlobals();
+  });
+
+  it("Pause button disabled when status=paused", () => {
+    renderPanelControls("paused");
+
+    expect(screen.getByRole("button", { name: "Pause session" })).toBeDisabled();
+  });
+
+  it("Resume button disabled when status=active", () => {
+    renderPanelControls("active");
+
+    expect(screen.getByRole("button", { name: "Resume session" })).toBeDisabled();
+  });
+
+  it("Kill buttons disabled when status=killed", () => {
+    renderPanelControls("killed");
+
+    expect(screen.getByRole("button", { name: "Gracefully kill session" })).toBeDisabled();
+    expect(screen.getByRole("button", { name: "Force kill session" })).toBeDisabled();
+  });
+
+  it("clicking pause calls the API", async () => {
+    const user = userEvent.setup();
+
+    renderPanelControls("active");
+
+    await user.click(screen.getByRole("button", { name: "Pause session" }));
+
+    await waitFor(() => {
+      expect(mockApiPost).toHaveBeenCalledWith("/api/mission-control/sessions/session-1/pause");
+    });
+  });
+});
diff --git a/apps/web/src/components/mission-control/__tests__/mission-control-phase2.gate.test.tsx b/apps/web/src/components/mission-control/__tests__/mission-control-phase2.gate.test.tsx
new file mode 100644
index 0000000..0a83d06
--- /dev/null
+++ b/apps/web/src/components/mission-control/__tests__/mission-control-phase2.gate.test.tsx
@@ -0,0 +1,34 @@
+import type { ReactNode } from "react";
+import { render, screen } from "@testing-library/react";
+import { describe, expect, it, vi } from "vitest";
+import { MissionControlLayout } from "../MissionControlLayout";
+
+vi.mock("@/components/mission-control/AuditLogDrawer", () => ({
+  AuditLogDrawer: ({ trigger }: { trigger: ReactNode }): React.JSX.Element => (
+    <div data-testid="audit-log-drawer">{trigger}</div>
+  ),
+}));
+
+vi.mock("@/components/mission-control/GlobalAgentRoster", () => ({
+  GlobalAgentRoster: (): React.JSX.Element => <div data-testid="global-agent-roster" />,
+}));
+
+vi.mock("@/components/mission-control/MissionControlPanel", () => ({
+  MissionControlPanel: (): React.JSX.Element => <div data-testid="mission-control-panel" />,
+  MIN_PANEL_COUNT: 1,
+  MAX_PANEL_COUNT: 6,
+}));
+
+describe("Mission Control Phase 2 Gate", () => {
+  it("Phase 2 gate: MissionControlLayout renders with all components present", () => {
+    const consoleErrorSpy = vi.spyOn(console, "error").mockImplementation((..._args) => undefined);
+
+    render(<MissionControlLayout />);
+
+    expect(screen.getByTestId("global-agent-roster")).toBeInTheDocument();
+    expect(screen.getByTestId("mission-control-panel")).toBeInTheDocument();
+    expect(consoleErrorSpy).not.toHaveBeenCalled();
+
+    consoleErrorSpy.mockRestore();
+  });
+});