diff --git a/frontend/cypress/e2e/board_tasks.cy.ts b/frontend/cypress/e2e/board_tasks.cy.ts
new file mode 100644
index 00000000..c347c077
--- /dev/null
+++ b/frontend/cypress/e2e/board_tasks.cy.ts
@@ -0,0 +1,304 @@
+/// <reference types="cypress" />
+
+describe("/boards/:id task board", () => {
+  const apiBase = "**/api/v1";
+  const email = "local-auth-user@example.com";
+
+  const originalDefaultCommandTimeout = Cypress.config("defaultCommandTimeout");
+
+  beforeEach(() => {
+    Cypress.config("defaultCommandTimeout", 20_000);
+  });
+
+  afterEach(() => {
+    Cypress.config("defaultCommandTimeout", originalDefaultCommandTimeout);
+  });
+
+  function stubEmptySse() {
+    // Keep known board-related SSE endpoints quiet in tests.
+    const emptySse = {
+      statusCode: 200,
+      headers: { "content-type": "text/event-stream" },
+      body: "",
+    };
+
+    cy.intercept("GET", `${apiBase}/boards/*/tasks/stream*`, emptySse).as(
+      "tasksStream",
+    );
+    cy.intercept("GET", `${apiBase}/boards/*/approvals/stream*`, emptySse).as(
+      "approvalsStream",
+    );
+    cy.intercept("GET", `${apiBase}/boards/*/memory/stream*`, emptySse).as(
+      "memoryStream",
+    );
+    cy.intercept("GET", `${apiBase}/agents/stream*`, emptySse).as("agentsStream");
+  }
+
+  function openEditTaskDialog() {
+    cy.get('button[title="Edit task"]', { timeout: 20_000 })
+      .should("be.visible")
+      .and("not.be.disabled")
+      .click();
+    cy.get('[aria-label="Edit task"]', { timeout: 20_000 }).should("be.visible");
+  }
+
+  it("auth negative: signed-out user is shown local auth login", () => {
+    cy.visit("/boards/b1");
+    cy.contains("h1", /local authentication/i, { timeout: 30_000 }).should(
+      "be.visible",
+    );
+  });
+
+  it("happy path: renders tasks from snapshot and supports create + status update + delete (stubbed)", () => {
+    stubEmptySse();
+
+    cy.intercept("GET", `${apiBase}/organizations/me/member*`, {
+      statusCode: 200,
+      body: {
+        id: "m1",
+        organization_id: "o1",
+        user_id: "u1",
+        role: "owner",
+        all_boards_read: true,
+        all_boards_write: true,
+        created_at: "2026-02-11T00:00:00Z",
+        updated_at: "2026-02-11T00:00:00Z",
+        board_access: [{ board_id: "b1", can_read: true, can_write: true }],
+      },
+    }).as("membership");
+
+    cy.intercept("GET", `${apiBase}/users/me*`, {
+      statusCode: 200,
+      body: {
+        id: "u1",
+        clerk_user_id: "clerk_u1",
+        email,
+        name: "Jane Test",
+        preferred_name: "Jane",
+        timezone: "America/New_York",
+        is_super_admin: false,
+      },
+    }).as("me");
+
+    cy.intercept("GET", `${apiBase}/organizations/me/list*`, {
+      statusCode: 200,
+      body: [
+        { id: "o1", name: "Personal", role: "owner", is_active: true },
+      ],
+    }).as("organizations");
+
+    cy.intercept("GET", `${apiBase}/tags*`, {
+      statusCode: 200,
+      body: { items: [], total: 0, limit: 200, offset: 0 },
+    }).as("tags");
+
+    cy.intercept("GET", `${apiBase}/organizations/me/custom-fields*`, {
+      statusCode: 200,
+      body: [],
+    }).as("customFields");
+
+    cy.intercept("GET", `${apiBase}/boards/b1/snapshot*`, {
+      statusCode: 200,
+      body: {
+        board: {
+          id: "b1",
+          name: "Demo Board",
+          slug: "demo-board",
+          description: "Demo",
+          gateway_id: "g1",
+          board_group_id: null,
+          board_type: "general",
+          objective: null,
+          success_metrics: null,
+          target_date: null,
+          goal_confirmed: true,
+          goal_source: "test",
+          organization_id: "o1",
+          created_at: "2026-02-11T00:00:00Z",
+          updated_at: "2026-02-11T00:00:00Z",
+        },
+        tasks: [
+          {
+            id: "t1",
+            board_id: "b1",
+            title: "Inbox task",
+            description: "",
+            status: "inbox",
+            priority: "medium",
+            due_at: null,
+            assigned_agent_id: null,
+            depends_on_task_ids: [],
+            created_by_user_id: null,
+            in_progress_at: null,
+            created_at: "2026-02-11T00:00:00Z",
+            updated_at: "2026-02-11T00:00:00Z",
+            blocked_by_task_ids: [],
+            is_blocked: false,
+            assignee: null,
+            approvals_count: 0,
+            approvals_pending_count: 0,
+          },
+        ],
+        agents: [],
+        approvals: [],
+        chat_messages: [],
+        pending_approvals_count: 0,
+      },
+    }).as("snapshot");
+
+    cy.intercept("GET", `${apiBase}/boards/b1/group-snapshot*`, {
+      statusCode: 200,
+      body: { group: null, boards: [] },
+    }).as("groupSnapshot");
+
+    cy.intercept("POST", `${apiBase}/boards/b1/tasks`, (req) => {
+      // Minimal assertion the UI sends expected fields.
+      expect(req.body).to.have.property("title");
+      req.reply({
+        statusCode: 200,
+        body: {
+          id: "t2",
+          board_id: "b1",
+          title: req.body.title,
+          description: req.body.description ?? "",
+          status: "inbox",
+          priority: req.body.priority ?? "medium",
+          due_at: null,
+          assigned_agent_id: null,
+          depends_on_task_ids: [],
+          created_by_user_id: null,
+          in_progress_at: null,
+          created_at: "2026-02-11T00:00:00Z",
+          updated_at: "2026-02-11T00:00:00Z",
+          blocked_by_task_ids: [],
+          is_blocked: false,
+          assignee: null,
+          approvals_count: 0,
+          approvals_pending_count: 0,
+        },
+      });
+    }).as("createTask");
+
+    cy.intercept("PATCH", `${apiBase}/boards/b1/tasks/t1`, (req) => {
+      expect(req.body).to.have.property("status");
+      req.reply({
+        statusCode: 200,
+        body: {
+          id: "t1",
+          board_id: "b1",
+          title: "Inbox task",
+          description: "",
+          status: req.body.status,
+          priority: "medium",
+          due_at: null,
+          assigned_agent_id: null,
+          depends_on_task_ids: [],
+          created_by_user_id: null,
+          in_progress_at: null,
+          created_at: "2026-02-11T00:00:00Z",
+          updated_at: "2026-02-11T00:00:01Z",
+          blocked_by_task_ids: [],
+          is_blocked: false,
+          assignee: null,
+          approvals_count: 0,
+          approvals_pending_count: 0,
+        },
+      });
+    }).as("updateTask");
+
+    cy.intercept("DELETE", `${apiBase}/boards/b1/tasks/t1`, {
+      statusCode: 200,
+      body: { ok: true },
+    }).as("deleteTask");
+
+    cy.intercept("GET", `${apiBase}/boards/b1/tasks/t1/comments*`, {
+      statusCode: 200,
+      body: { items: [], total: 0, limit: 200, offset: 0 },
+    }).as("taskComments");
+
+    cy.loginWithLocalAuth();
+    cy.visit("/boards/b1");
+    cy.waitForAppLoaded();
+
+    cy.wait([
+      "@snapshot",
+      "@groupSnapshot",
+      "@membership",
+      "@me",
+      "@organizations",
+      "@tags",
+      "@customFields",
+    ]);
+
+    // Existing task visible.
+    cy.contains("Inbox task").should("be.visible");
+
+    // Open create task flow.
+    // Board page uses an icon-only button with aria-label="New task".
+    cy.get('button[aria-label="New task"]')
+      .should("be.visible")
+      .and("not.be.disabled")
+      .click();
+
+    cy.contains('[role="dialog"]', "New task")
+      .should("be.visible")
+      .within(() => {
+        cy.contains("label", "Title").parent().find("input").type("New task");
+        cy.contains("button", /^Create task$/)
+          .should("be.visible")
+          .and("not.be.disabled")
+          .click();
+      });
+    cy.wait(["@createTask"]);
+
+    cy.contains("New task").should("be.visible");
+
+    // Open edit task dialog.
+    cy.contains("Inbox task").scrollIntoView().should("be.visible").click();
+    cy.wait(["@taskComments"]);
+    cy.contains(/task detail/i).should("be.visible");
+    openEditTaskDialog();
+
+    // Change status via Status select.
+    cy.get('[aria-label="Edit task"]').within(() => {
+      cy.contains("label", "Status")
+        .parent()
+        .within(() => {
+          cy.get('[role="combobox"]').first().should("be.visible").click();
+        });
+    });
+
+    cy.contains("In progress").should("be.visible").click();
+
+    cy.contains("button", /save changes/i)
+      .should("be.visible")
+      .and("not.be.disabled")
+      .click();
+    cy.wait(["@updateTask"]);
+    cy.get('[aria-label="Edit task"]').should("not.exist");
+
+    // Save closes the edit dialog; reopen it from task detail.
+    cy.contains(/task detail/i).should("be.visible");
+    openEditTaskDialog();
+
+    // Delete task via delete dialog.
+    cy.get('[aria-label="Edit task"]').within(() => {
+      cy.contains("button", /^Delete task$/)
+        .scrollIntoView()
+        .should("be.visible")
+        .and("not.be.disabled")
+        .click();
+    });
+    cy.get('[aria-label="Delete task"]').should("be.visible");
+    cy.get('[aria-label="Delete task"]').within(() => {
+      cy.contains("button", /^Delete task$/)
+        .scrollIntoView()
+        .should("be.visible")
+        .and("not.be.disabled")
+        .click();
+    });
+    cy.wait(["@deleteTask"]);
+
+    cy.contains("Inbox task").should("not.exist");
+  });
+});
diff --git a/frontend/cypress/e2e/boards_list.cy.ts b/frontend/cypress/e2e/boards_list.cy.ts
new file mode 100644
index 00000000..b1585cd2
--- /dev/null
+++ b/frontend/cypress/e2e/boards_list.cy.ts
@@ -0,0 +1,102 @@
+/// <reference types="cypress" />
+
+describe("/boards", () => {
+  const apiBase = "**/api/v1";
+  const email = "local-auth-user@example.com";
+
+  const originalDefaultCommandTimeout = Cypress.config("defaultCommandTimeout");
+
+  beforeEach(() => {
+    Cypress.config("defaultCommandTimeout", 20_000);
+  });
+
+  afterEach(() => {
+    Cypress.config("defaultCommandTimeout", originalDefaultCommandTimeout);
+  });
+
+  it("auth negative: signed-out user is shown local auth login", () => {
+    cy.visit("/boards");
+    cy.contains("h1", /local authentication/i, { timeout: 30_000 }).should(
+      "be.visible",
+    );
+  });
+
+  it("happy path: signed-in user sees boards list", () => {
+    cy.intercept("GET", `${apiBase}/organizations/me/member*`, {
+      statusCode: 200,
+      body: {
+        id: "m1",
+        organization_id: "o1",
+        user_id: "u1",
+        role: "owner",
+        all_boards_read: true,
+        all_boards_write: true,
+        created_at: "2026-02-11T00:00:00Z",
+        updated_at: "2026-02-11T00:00:00Z",
+        board_access: [],
+      },
+    }).as("membership");
+
+    cy.intercept("GET", `${apiBase}/users/me*`, {
+      statusCode: 200,
+      body: {
+        id: "u1",
+        clerk_user_id: "clerk_u1",
+        email,
+        name: "Jane Test",
+        preferred_name: "Jane",
+        timezone: "America/New_York",
+        is_super_admin: false,
+      },
+    }).as("me");
+
+    cy.intercept("GET", `${apiBase}/organizations/me/list*`, {
+      statusCode: 200,
+      body: [
+        { id: "o1", name: "Personal", role: "owner", is_active: true },
+      ],
+    }).as("organizations");
+
+    cy.intercept("GET", `${apiBase}/boards*`, {
+      statusCode: 200,
+      body: {
+        items: [
+          {
+            id: "b1",
+            name: "Demo Board",
+            slug: "demo-board",
+            description: "Demo",
+            gateway_id: "g1",
+            board_group_id: null,
+            board_type: "general",
+            objective: null,
+            success_metrics: null,
+            target_date: null,
+            goal_confirmed: true,
+            goal_source: "test",
+            organization_id: "o1",
+            created_at: "2026-02-11T00:00:00Z",
+            updated_at: "2026-02-11T00:00:00Z",
+          },
+        ],
+        total: 1,
+        limit: 200,
+        offset: 0,
+      },
+    }).as("boards");
+
+    cy.intercept("GET", `${apiBase}/board-groups*`, {
+      statusCode: 200,
+      body: { items: [], total: 0, limit: 200, offset: 0 },
+    }).as("boardGroups");
+
+    cy.loginWithLocalAuth();
+    cy.visit("/boards");
+    cy.waitForAppLoaded();
+
+    cy.wait(["@membership", "@me", "@organizations", "@boards", "@boardGroups"]);
+
+    cy.contains(/boards/i).should("be.visible");
+    cy.contains("Demo Board").should("be.visible");
+  });
+});
diff --git a/frontend/cypress/support/e2e.ts b/frontend/cypress/support/e2e.ts
index bf3c9830..a1b252f3 100644
--- a/frontend/cypress/support/e2e.ts
+++ b/frontend/cypress/support/e2e.ts
@@ -3,13 +3,17 @@
 
 /// <reference types="cypress" />
 
-// Next.js hydration mismatch can happen non-deterministically in CI/dev mode.
-// Ignore this specific runtime error so E2E assertions can continue.
+import { addClerkCommands } from "@clerk/testing/cypress";
+
+// Clerk/Next.js occasionally throws a non-deterministic hydration mismatch
+// on /sign-in. Ignore this known UI noise so E2E assertions can proceed.
 Cypress.on("uncaught:exception", (err) => {
-  if (err.message?.includes("Hydration failed")) {
+  if (err?.message?.includes("Hydration failed")) {
     return false;
   }
   return true;
 });
 
+addClerkCommands({ Cypress, cy });
+
 import "./commands";
diff --git a/frontend/src/app/activity/page.test.tsx b/frontend/src/app/activity/page.test.tsx
index 981934c1..388a5826 100644
--- a/frontend/src/app/activity/page.test.tsx
+++ b/frontend/src/app/activity/page.test.tsx
@@ -62,19 +62,33 @@ vi.mock("@clerk/nextjs", () => {
 
 describe("/activity auth boundary", () => {
   it("renders without ClerkProvider runtime errors when publishable key is a placeholder", () => {
+    const previousAuthMode = process.env.NEXT_PUBLIC_AUTH_MODE;
+    const previousPublishableKey = process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY;
+
     // Simulate CI/secretless env where an arbitrary placeholder value may be present.
     // AuthProvider should treat this as disabled, and the auth wrappers must not render
     // Clerk SignedOut/SignedIn components.
+    process.env.NEXT_PUBLIC_AUTH_MODE = "local";
     process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY = "placeholder";
+    window.sessionStorage.clear();
 
-    render(
-      <AuthProvider>
-        <QueryProvider>
-          <ActivityPage />
-        </QueryProvider>
-      </AuthProvider>,
-    );
+    try {
+      render(
+        <AuthProvider>
+          <QueryProvider>
+            <ActivityPage />
+          </QueryProvider>
+        </AuthProvider>,
+      );
 
-    expect(screen.getByText(/sign in to view the feed/i)).toBeInTheDocument();
+      expect(
+        screen.getByRole("heading", { name: /local authentication/i }),
+      ).toBeInTheDocument();
+      expect(screen.getByLabelText(/access token/i)).toBeInTheDocument();
+    } finally {
+      process.env.NEXT_PUBLIC_AUTH_MODE = previousAuthMode;
+      process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY = previousPublishableKey;
+      window.sessionStorage.clear();
+    }
   });
 });
diff --git a/frontend/src/app/approvals/page.test.tsx b/frontend/src/app/approvals/page.test.tsx
index f747b5bf..cb812fac 100644
--- a/frontend/src/app/approvals/page.test.tsx
+++ b/frontend/src/app/approvals/page.test.tsx
@@ -59,16 +59,30 @@ vi.mock("@clerk/nextjs", () => {
 
 describe("/approvals auth boundary", () => {
   it("renders without ClerkProvider runtime errors when publishable key is a placeholder", () => {
+    const previousAuthMode = process.env.NEXT_PUBLIC_AUTH_MODE;
+    const previousPublishableKey = process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY;
+
+    process.env.NEXT_PUBLIC_AUTH_MODE = "local";
     process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY = "placeholder";
+    window.sessionStorage.clear();
 
-    render(
-      <AuthProvider>
-        <QueryProvider>
-          <GlobalApprovalsPage />
-        </QueryProvider>
-      </AuthProvider>,
-    );
+    try {
+      render(
+        <AuthProvider>
+          <QueryProvider>
+            <GlobalApprovalsPage />
+          </QueryProvider>
+        </AuthProvider>,
+      );
 
-    expect(screen.getByText(/sign in to view approvals/i)).toBeInTheDocument();
+      expect(
+        screen.getByRole("heading", { name: /local authentication/i }),
+      ).toBeInTheDocument();
+      expect(screen.getByLabelText(/access token/i)).toBeInTheDocument();
+    } finally {
+      process.env.NEXT_PUBLIC_AUTH_MODE = previousAuthMode;
+      process.env.NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY = previousPublishableKey;
+      window.sessionStorage.clear();
+    }
   });
 });
diff --git a/frontend/src/components/BoardOnboardingChat.test.tsx b/frontend/src/components/BoardOnboardingChat.test.tsx
index 20487678..88dd5b9a 100644
--- a/frontend/src/components/BoardOnboardingChat.test.tsx
+++ b/frontend/src/components/BoardOnboardingChat.test.tsx
@@ -86,6 +86,9 @@ describe("BoardOnboardingChat polling", () => {
     );
 
     await screen.findByText("What should we prioritize?");
+    await waitFor(() => {
+      expect(screen.getByRole("button", { name: "Option A" })).toBeEnabled();
+    });
     const callsBeforeWait = getOnboardingMock.mock.calls.length;
 
     await act(async () => {