fix: navigate tasks in visible board order

docs/FEATURES.md

@@ -122,7 +122,7 @@ The Kanban board is the central interface — a drag-and-drop workspace that ref
 - **Mobile shell controls** — Compact navigation uses bounded labels and full accessible names; Board Chat stays fixed above the bottom navigation and device safe area
 - **Resizable Workbench** — Board Chat and Squad Chat open in one bounded right-side dock, preserve the active conversation when switching channels, and clamp their width to keep the application shell recoverable
 - **Bulk operations** — Select multiple tasks to move, archive, or delete in batch; select-all toggle
-- **Keyboard shortcuts** — Navigate tasks (j/k, arrows), open (Enter), close (Esc), create (c), move to column (1-4), help (?)
+- **Keyboard shortcuts** — Navigate visible tasks in saved board order (j/k, arrows), focus and reveal the selected card, open (Enter), close (Esc), create (c), move to configured column (1-9), help (?)
 - **Loading skeleton** — Shimmer placeholders while the board loads
 - **Blocked column** — Dedicated column for blocked tasks with categorized reasons (waiting on feedback, technical snag, prerequisite, other)
 - **Comments** — Add, edit, and delete comments on tasks with author attribution and relative timestamps

web/src/__tests__/KanbanBoard.test.tsx

@@ -89,14 +89,13 @@ vi.mock('@/hooks/useAgentStatus', () => ({
   }),
 }));
 
-vi.mock('@/hooks/useKeyboard', () => ({
-  useKeyboard: () => ({
-    selectedTaskId: null,
-    setTasks: vi.fn(),
-    setOnOpenTask: vi.fn(),
-    setOnMoveTask: vi.fn(),
-  }),
+const keyboardRegistration = vi.hoisted(() => ({
+  selectedTaskId: null,
+  setTasks: vi.fn(),
+  setOnOpenTask: vi.fn(),
+  setOnMoveTask: vi.fn(),
 }));
+vi.mock('@/hooks/useKeyboard', () => ({ useKeyboard: () => keyboardRegistration }));
 
 vi.mock('@/hooks/useFeatureSettings', () => ({
   useFeatureSettings: () => mockFeatureSettingsResult,
@@ -310,6 +309,17 @@ afterEach(() => {
 // ── Tests ────────────────────────────────────────────────────
 
 describe('KanbanBoard', () => {
+  it('removes task navigation and callbacks when the board unmounts', () => {
+    mockUseTasks = () => ({ data: mockTasks, isLoading: false, error: null });
+    const view = renderBoard();
+    expect(keyboardRegistration.setOnOpenTask).toHaveBeenLastCalledWith(expect.any(Function));
+    expect(keyboardRegistration.setOnMoveTask).toHaveBeenLastCalledWith(expect.any(Function));
+    view.unmount();
+    expect(keyboardRegistration.setTasks).toHaveBeenLastCalledWith([]);
+    expect(keyboardRegistration.setOnOpenTask).toHaveBeenLastCalledWith(null);
+    expect(keyboardRegistration.setOnMoveTask).toHaveBeenLastCalledWith(null);
+  });
+
   it('shows loading skeleton when data is loading', () => {
     mockUseTasks = () => ({ data: undefined, isLoading: true, error: null });
     renderBoard();

web/src/__tests__/TaskCard.test.tsx

@@ -156,6 +156,19 @@ describe('TaskCard', () => {
     cleanup();
   });
 
+  it('focuses and reveals keyboard selection with an accessible label', () => {
+    ensureMantineBrowserApis();
+    const scroll = vi.spyOn(Element.prototype, 'scrollIntoView').mockImplementation(() => {});
+    try {
+      renderCard(createMockTask({ title: 'Keyboard target' }), { isSelected: true });
+      const card = screen.getByRole('article', { name: /^Selected\. Task: Keyboard target/ });
+      expect(document.activeElement).toBe(card);
+      expect(scroll).toHaveBeenCalledWith({ block: 'nearest', inline: 'nearest' });
+    } finally {
+      scroll.mockRestore();
+    }
+  });
+
   it('renders task title', () => {
     const task = createMockTask({ title: 'Implement login' });
     renderCard(task);

web/src/__tests__/useKeyboard.test.tsx

@@ -4,7 +4,7 @@
 import React from 'react';
 import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
 import { render, screen, fireEvent, cleanup } from '@testing-library/react';
-import type { Task, TaskStatus } from '@veritas-kanban/shared';
+import { taskBoardRankAtIndex, type Task, type TaskStatus } from '@veritas-kanban/shared';
 import { createMockTask } from './test-utils';
 
 // Mock toast — vi.mock is hoisted before imports.
@@ -100,6 +100,54 @@ describe('KeyboardProvider', () => {
     cleanup();
   });
 
+  it('follows positions and durable ranks across custom columns, reorder, and filtering', () => {
+    featureSettingsMock.settings.board.columns = [
+      { id: 'ready', title: 'Ready' },
+      { id: 'todo', title: 'To Do' },
+    ];
+    const legacy = createMockTask({ id: 'legacy', title: 'Zulu', status: 'ready', position: 1 });
+    const later = createMockTask({ id: 'later', title: 'Alpha', status: 'ready', position: 5 });
+    const ranked = createMockTask({
+      id: 'ranked',
+      title: 'Middle',
+      status: 'ready',
+      position: 99,
+      boardRank: taskBoardRankAtIndex([legacy, later], 1),
+    });
+    const todo = createMockTask({ id: 'todo', status: 'todo', position: -100 });
+    const hidden = createMockTask({ id: 'hidden', status: 'retired', position: -200 });
+    const tasks = [todo, later, ranked, legacy, hidden];
+    const view = renderWithProvider({ tasks });
+    for (const id of ['legacy', 'ranked', 'later', 'todo']) {
+      fireEvent.keyDown(window, { key: 'j' });
+      expect(screen.getByTestId('selected').textContent).toBe(id);
+    }
+    fireEvent.keyDown(window, { key: 'ArrowUp' });
+    expect(screen.getByTestId('selected').textContent).toBe('later');
+    const reordered = [
+      todo,
+      { ...later, boardRank: taskBoardRankAtIndex([legacy, ranked], 0) },
+      ranked,
+      legacy,
+    ];
+    view.rerender(
+      <KeyboardProvider>
+        <TestConsumer tasks={reordered} />
+      </KeyboardProvider>
+    );
+    expect(screen.getByTestId('selected').textContent).toBe('later');
+    fireEvent.keyDown(window, { key: 'ArrowDown' });
+    expect(screen.getByTestId('selected').textContent).toBe('legacy');
+    view.rerender(
+      <KeyboardProvider>
+        <TestConsumer tasks={[ranked, todo]} />
+      </KeyboardProvider>
+    );
+    expect(screen.getByTestId('selected').textContent).toBe('none');
+    fireEvent.keyDown(window, { key: 'k' });
+    expect(screen.getByTestId('selected').textContent).toBe('todo');
+  });
+
   it('throws when useKeyboard is used outside provider', () => {
     vi.spyOn(console, 'error').mockImplementation(() => {});
 

web/src/components/board/KanbanBoard.tsx

@@ -375,7 +375,6 @@ export function KanbanBoard() {
   // Register filtered tasks with keyboard context
   useEffect(() => {
     setTasks(filteredTasks);
-    return () => setTasks([]);
   }, [filteredTasks, setTasks]);
 
   // Handler for opening a task
@@ -532,9 +531,17 @@ export function KanbanBoard() {
     [allTasksByStatus, announce, canWriteTasks, columns, commitBoardMove, filteredTasks, isOnline]
   );
 
-  // Register callbacks with keyboard context (refs, so no need for useEffect)
-  setOnOpenTask(handleTaskClick);
-  setOnMoveTask(handleMoveTask);
+  // Board-owned callbacks must not outlive this view.
+  useEffect(() => {
+    setOnOpenTask(handleTaskClick);
+    setOnMoveTask(handleMoveTask);
+    return () => {
+      setOnOpenTask(null);
+      setOnMoveTask(null);
+    };
+  }, [handleTaskClick, handleMoveTask, setOnOpenTask, setOnMoveTask]);
+
+  useEffect(() => () => setTasks([]), [setTasks]);
 
   // Drag and drop logic
   const {

web/src/components/task/TaskCard.tsx

@@ -1,4 +1,4 @@
-import { memo, useMemo, useState } from 'react';
+import { memo, useMemo, useState, useRef, useEffect, useCallback } from 'react';
 import { Select, Tooltip } from '@mantine/core';
 import { useSortable } from '@dnd-kit/sortable';
 import { CSS } from '@dnd-kit/utilities';
@@ -218,6 +218,21 @@ export const TaskCard = memo(function TaskCard({
     id: task.id,
     disabled: !dragEnabled,
   });
+  const cardRef = useRef<HTMLDivElement | null>(null);
+  const attachCard = useCallback(
+    (node: HTMLDivElement | null) => {
+      cardRef.current = node;
+      setNodeRef(node);
+    },
+    [setNodeRef]
+  );
+  useEffect(() => {
+    if (isSelected) {
+      cardRef.current?.focus({ preventScroll: true });
+      cardRef.current?.scrollIntoView?.({ block: 'nearest', inline: 'nearest' });
+    }
+  }, [isSelected]);
+
   const { isSelecting, toggleSelect, isSelected: isBulkSelected } = useBulkActions();
   const [tooltipDismissed, setTooltipDismissed] = useState(false);
   const [statusMenuOpen, setStatusMenuOpen] = useState(false);
@@ -362,7 +377,7 @@ export const TaskCard = memo(function TaskCard({
       }
     >
       <div
-        ref={setNodeRef}
+        ref={attachCard}
         data-task-id={task.id}
         style={style}
         {...(dragEnabled ? listeners : {})}
@@ -372,7 +387,7 @@ export const TaskCard = memo(function TaskCard({
         onMouseLeave={() => setTooltipDismissed(false)}
         role="article"
         tabIndex={0}
-        aria-label={`Task: ${task.title}, Type: ${typeLabel}, Priority: ${task.priority}${readinessAria}${isBlockedState ? ', Blocked' : ''}${isAgentRunning ? ', Agent running' : ''}${isAttemptFailed ? ', Latest attempt failed' : ''}${isAwaitingReview ? ', Awaiting review' : ''}${isVerified ? ', Verified' : ''}`}
+        aria-label={`${isSelected ? 'Selected. ' : ''}Task: ${task.title}, Type: ${typeLabel}, Priority: ${task.priority}${readinessAria}${isBlockedState ? ', Blocked' : ''}${isAgentRunning ? ', Agent running' : ''}${isAttemptFailed ? ', Latest attempt failed' : ''}${isAwaitingReview ? ', Awaiting review' : ''}${isVerified ? ', Verified' : ''}`}
         data-type-color-token={typeColorToken}
         data-selected={isSelected ? 'true' : undefined}
         data-dragging={isDragging || isCurrentlyDragging ? 'true' : undefined}

web/src/hooks/useKeyboard.tsx

@@ -11,6 +11,7 @@ import {
 import {
   DEFAULT_FEATURE_SETTINGS,
   normalizeBoardColumns,
+  sortTasksByBoardPosition,
   type Task,
   type TaskStatus,
 } from '@veritas-kanban/shared';
@@ -38,8 +39,8 @@ interface KeyboardContextValue {
   setTasks: (tasks: Task[]) => void;
 
   // Callbacks (using refs to avoid re-render loops)
-  setOnOpenTask: (fn: (task: Task) => void) => void;
-  setOnMoveTask: (fn: (taskId: string, status: TaskStatus) => void) => void;
+  setOnOpenTask: (fn: ((task: Task) => void) | null) => void;
+  setOnMoveTask: (fn: ((taskId: string, status: TaskStatus) => void) | null) => void;
 }
 
 const KeyboardContext = createContext<KeyboardContextValue | null>(null);
@@ -52,7 +53,11 @@ function getColumnForShortcut(key: string, columns: Array<{ id: TaskStatus }>):
 export function KeyboardProvider({ children }: { children: ReactNode }) {
   const [isHelpOpen, setIsHelpOpen] = useState(false);
   const [selectedTaskId, setSelectedTaskId] = useState<string | null>(null);
-  const [tasks, setTasks] = useState<Task[]>([]);
+  const [tasks, updateTasks] = useState<Task[]>([]);
+  const setTasks = useCallback((next: Task[]) => {
+    updateTasks(next);
+    setSelectedTaskId((id) => (id && next.some((task) => task.id === id) ? id : null));
+  }, []);
   const { settings } = useFeatureSettings();
   const columns = useMemo(
     () => normalizeBoardColumns(settings.board?.columns ?? DEFAULT_FEATURE_SETTINGS.board.columns),
@@ -89,24 +94,23 @@ export function KeyboardProvider({ children }: { children: ReactNode }) {
     setIsHelpOpen(false);
   }, []);
 
-  const setOnOpenTask = useCallback((fn: (task: Task) => void) => {
+  const setOnOpenTask = useCallback((fn: ((task: Task) => void) | null) => {
     onOpenTaskRef.current = fn;
   }, []);
 
-  const setOnMoveTask = useCallback((fn: (taskId: string, status: TaskStatus) => void) => {
+  const setOnMoveTask = useCallback((fn: ((taskId: string, status: TaskStatus) => void) | null) => {
     onMoveTaskRef.current = fn;
   }, []);
 
-  // Get flat list of tasks sorted by column then position
-  const getTaskList = useCallback(() => {
-    const statusOrder = columns.map((column) => column.id);
-    return [...tasks].sort((a, b) => {
-      const aIndex = statusOrder.indexOf(a.status);
-      const bIndex = statusOrder.indexOf(b.status);
-      if (aIndex !== bIndex) return aIndex - bIndex;
-      return a.title.localeCompare(b.title);
-    });
-  }, [columns, tasks]);
+  // Match the rendered column order and the board's canonical rank/position order.
+  // Compute once per snapshot, rather than sorting during each keystroke.
+  const taskList = useMemo(
+    () =>
+      columns.flatMap((column) =>
+        sortTasksByBoardPosition(tasks.filter((task) => task.status === column.id))
+      ),
+    [columns, tasks]
+  );
 
   // Keyboard event handler
   useEffect(() => {
@@ -141,7 +145,6 @@ export function KeyboardProvider({ children }: { children: ReactNode }) {
         return;
       }
 
-      const taskList = getTaskList();
       const currentIndex = selectedTaskId ? taskList.findIndex((t) => t.id === selectedTaskId) : -1;
 
       // Cmd+Shift+C (or Ctrl+Shift+C on Windows/Linux) - Toggle chat panel
@@ -237,7 +240,7 @@ export function KeyboardProvider({ children }: { children: ReactNode }) {
 
     window.addEventListener('keydown', handleKeyDown);
     return () => window.removeEventListener('keydown', handleKeyDown);
-  }, [getTaskList, selectedTaskId, isHelpOpen, openCreateDialog, openChatPanel, columns]);
+  }, [taskList, selectedTaskId, isHelpOpen, openCreateDialog, openChatPanel, columns]);
 
   const value = useMemo<KeyboardContextValue>(
     () => ({