feat: prioritize recent projects by explicit opens

src/features/recent-projects/renderer/hooks/useOpenRecentProject.ts

@@ -15,6 +15,7 @@ import {
   findMatchingWorktree,
   type WorktreeMatch,
 } from '../utils/navigation';
+import { recordRecentProjectOpenPaths } from '../utils/recentProjectOpenHistory';
 
 const logger = createLogger('Feature:RecentProjects:open');
 
@@ -92,6 +93,7 @@ export function useOpenRecentProject(): {
     async (project: DashboardRecentProject): Promise<void> => {
       try {
         await openTarget(project.openTarget, project.associatedPaths);
+        recordRecentProjectOpenPaths([project.primaryPath, ...project.associatedPaths]);
       } catch (error) {
         logger.error('Failed to open recent project', error);
       }
@@ -116,6 +118,7 @@ export function useOpenRecentProject(): {
       }
 
       await openSyntheticPath(selectedPath, [selectedPath]);
+      recordRecentProjectOpenPaths([selectedPath]);
     } catch (error) {
       logger.error('Failed to select project folder', error);
     }

src/features/recent-projects/renderer/hooks/useRecentProjectsSection.ts

@@ -7,6 +7,10 @@ import { buildTaskCountsByProject, normalizePath } from '@renderer/utils/pathNor
 import { useShallow } from 'zustand/react/shallow';
 
 import { adaptRecentProjectsSection } from '../adapters/RecentProjectsSectionAdapter';
+import {
+  sortRecentProjectsByDisplayPriority,
+  subscribeRecentProjectOpenHistory,
+} from '../utils/recentProjectOpenHistory';
 import {
   getRecentProjectsClientSnapshot,
   loadRecentProjectsWithClientCache,
@@ -74,6 +78,7 @@ export function useRecentProjectsSection(
   const [error, setError] = useState<string | null>(null);
   const [visibleProjects, setVisibleProjects] = useState(maxProjects);
   const [aliveTeams, setAliveTeams] = useState<string[]>([]);
+  const [openHistoryVersion, setOpenHistoryVersion] = useState(0);
   const hasFetchedTasksRef = useRef(globalTasksInitialized);
   const recentProjectsRef = useRef<DashboardRecentProject[]>(initialSnapshot?.projects ?? []);
 
@@ -144,6 +149,11 @@ export function useRecentProjectsSection(
     }
   }, [maxProjects, searchQuery]);
 
+  useEffect(
+    () => subscribeRecentProjectOpenHistory(() => setOpenHistoryVersion((current) => current + 1)),
+    []
+  );
+
   const taskCountsByProject = useMemo(() => buildTaskCountsByProject(globalTasks), [globalTasks]);
 
   const activeTeamsByProject = useMemo(() => {
@@ -170,12 +180,18 @@ export function useRecentProjectsSection(
   const decoratedCards = useMemo(
     () =>
       adaptRecentProjectsSection({
-        projects: recentProjects,
+        projects: sortRecentProjectsByDisplayPriority(recentProjects),
         taskCountsByProject,
         activeTeamsByProject,
         tasksLoading: globalTasksLoading,
       }),
-    [activeTeamsByProject, globalTasksLoading, recentProjects, taskCountsByProject]
+    [
+      activeTeamsByProject,
+      globalTasksLoading,
+      openHistoryVersion,
+      recentProjects,
+      taskCountsByProject,
+    ]
   );
 
   const filteredCards = useMemo(

src/features/recent-projects/renderer/index.ts

@@ -1 +1,2 @@
 export { RecentProjectsSection } from './ui/RecentProjectsSection';
+export { recordRecentProjectOpenPaths } from './utils/recentProjectOpenHistory';

src/features/recent-projects/renderer/utils/recentProjectOpenHistory.ts

@@ -0,0 +1,211 @@
+import { normalizePath } from '@renderer/utils/pathNormalize';
+
+import type { DashboardRecentProject } from '@features/recent-projects/contracts';
+
+const RECENT_PROJECT_OPEN_HISTORY_KEY = 'recent-projects:open-history';
+const RECENT_PROJECT_OPEN_HISTORY_EVENT = 'recent-projects:open-history-changed';
+const OPEN_PRIORITY_WINDOW_MS = 1000 * 60 * 60 * 48;
+const MAX_HISTORY_ENTRIES = 120;
+
+interface RecentProjectOpenHistoryEntry {
+  path: string;
+  openedAt: number;
+}
+
+interface RecentProjectOpenHistoryState {
+  version: 1;
+  entries: RecentProjectOpenHistoryEntry[];
+}
+
+function canUseLocalStorage(): boolean {
+  return typeof window !== 'undefined' && typeof window.localStorage !== 'undefined';
+}
+
+function normalizeHistoryPath(projectPath: string): string | null {
+  const trimmed = projectPath.trim();
+  if (!trimmed) {
+    return null;
+  }
+  return normalizePath(trimmed);
+}
+
+function readHistoryState(): RecentProjectOpenHistoryState {
+  if (!canUseLocalStorage()) {
+    return { version: 1, entries: [] };
+  }
+
+  try {
+    const raw = window.localStorage.getItem(RECENT_PROJECT_OPEN_HISTORY_KEY);
+    if (!raw) {
+      return { version: 1, entries: [] };
+    }
+
+    const parsed = JSON.parse(raw) as Partial<RecentProjectOpenHistoryState>;
+    const entries = Array.isArray(parsed.entries) ? parsed.entries : [];
+    return {
+      version: 1,
+      entries: entries
+        .filter(
+          (entry): entry is RecentProjectOpenHistoryEntry =>
+            !!entry &&
+            typeof entry.path === 'string' &&
+            typeof entry.openedAt === 'number' &&
+            Number.isFinite(entry.openedAt)
+        )
+        .map((entry) => ({
+          path: entry.path,
+          openedAt: entry.openedAt,
+        })),
+    };
+  } catch {
+    return { version: 1, entries: [] };
+  }
+}
+
+function pruneEntries(
+  entries: readonly RecentProjectOpenHistoryEntry[]
+): RecentProjectOpenHistoryEntry[] {
+  const byPath = new Map<string, number>();
+
+  for (const entry of entries) {
+    const normalizedPath = normalizeHistoryPath(entry.path);
+    if (!normalizedPath) {
+      continue;
+    }
+    byPath.set(normalizedPath, Math.max(byPath.get(normalizedPath) ?? 0, entry.openedAt));
+  }
+
+  return Array.from(byPath.entries())
+    .map(([historyPath, openedAt]) => ({ path: historyPath, openedAt }))
+    .sort((left, right) => right.openedAt - left.openedAt)
+    .slice(0, MAX_HISTORY_ENTRIES);
+}
+
+function writeHistoryEntries(entries: readonly RecentProjectOpenHistoryEntry[]): void {
+  if (!canUseLocalStorage()) {
+    return;
+  }
+
+  const nextState: RecentProjectOpenHistoryState = {
+    version: 1,
+    entries: pruneEntries(entries),
+  };
+
+  try {
+    window.localStorage.setItem(RECENT_PROJECT_OPEN_HISTORY_KEY, JSON.stringify(nextState));
+    window.dispatchEvent(new CustomEvent(RECENT_PROJECT_OPEN_HISTORY_EVENT));
+  } catch {
+    // Best-effort persistence only.
+  }
+}
+
+function createHistoryLookup(): Map<string, number> {
+  return new Map(readHistoryState().entries.map((entry) => [entry.path, entry.openedAt]));
+}
+
+function getProjectPaths(
+  project: Pick<DashboardRecentProject, 'primaryPath' | 'associatedPaths'>
+): string[] {
+  return [project.primaryPath, ...project.associatedPaths]
+    .map((projectPath) => normalizeHistoryPath(projectPath))
+    .filter((projectPath): projectPath is string => Boolean(projectPath));
+}
+
+export function recordRecentProjectOpenPaths(
+  projectPaths: readonly string[],
+  openedAt: number = Date.now()
+): void {
+  const normalizedPaths = Array.from(
+    new Set(
+      projectPaths
+        .map((projectPath) => normalizeHistoryPath(projectPath))
+        .filter((projectPath): projectPath is string => Boolean(projectPath))
+    )
+  );
+
+  if (normalizedPaths.length === 0) {
+    return;
+  }
+
+  const existing = readHistoryState().entries;
+  writeHistoryEntries([
+    ...existing,
+    ...normalizedPaths.map((projectPath) => ({
+      path: projectPath,
+      openedAt,
+    })),
+  ]);
+}
+
+export function getRecentProjectLastOpenedAt(
+  project: Pick<DashboardRecentProject, 'primaryPath' | 'associatedPaths'>
+): number {
+  const historyLookup = createHistoryLookup();
+  return getProjectPaths(project).reduce(
+    (latest, projectPath) => Math.max(latest, historyLookup.get(projectPath) ?? 0),
+    0
+  );
+}
+
+export function sortRecentProjectsByDisplayPriority(
+  projects: readonly DashboardRecentProject[],
+  now: number = Date.now()
+): DashboardRecentProject[] {
+  const historyLookup = createHistoryLookup();
+
+  const getLastOpenedAt = (
+    project: Pick<DashboardRecentProject, 'primaryPath' | 'associatedPaths'>
+  ): number =>
+    getProjectPaths(project).reduce(
+      (latest, projectPath) => Math.max(latest, historyLookup.get(projectPath) ?? 0),
+      0
+    );
+
+  const isPriorityOpen = (openedAt: number): boolean =>
+    openedAt > 0 && now - openedAt <= OPEN_PRIORITY_WINDOW_MS;
+
+  return [...projects].sort((left, right) => {
+    const leftOpenedAt = getLastOpenedAt(left);
+    const rightOpenedAt = getLastOpenedAt(right);
+    const leftPriority = isPriorityOpen(leftOpenedAt);
+    const rightPriority = isPriorityOpen(rightOpenedAt);
+
+    if (leftPriority !== rightPriority) {
+      return leftPriority ? -1 : 1;
+    }
+
+    if (leftPriority && rightPriority && leftOpenedAt !== rightOpenedAt) {
+      return rightOpenedAt - leftOpenedAt;
+    }
+
+    if (left.mostRecentActivity !== right.mostRecentActivity) {
+      return right.mostRecentActivity - left.mostRecentActivity;
+    }
+
+    if (leftOpenedAt !== rightOpenedAt) {
+      return rightOpenedAt - leftOpenedAt;
+    }
+
+    return left.name.localeCompare(right.name);
+  });
+}
+
+export function subscribeRecentProjectOpenHistory(listener: () => void): () => void {
+  if (typeof window === 'undefined') {
+    return () => undefined;
+  }
+
+  const handleChange = (): void => listener();
+  window.addEventListener(RECENT_PROJECT_OPEN_HISTORY_EVENT, handleChange);
+  return () => {
+    window.removeEventListener(RECENT_PROJECT_OPEN_HISTORY_EVENT, handleChange);
+  };
+}
+
+export function resetRecentProjectOpenHistoryForTests(): void {
+  if (!canUseLocalStorage()) {
+    return;
+  }
+
+  window.localStorage.removeItem(RECENT_PROJECT_OPEN_HISTORY_KEY);
+}

src/renderer/components/sidebar/DateGroupedSessions.tsx

@@ -7,6 +7,7 @@
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { createPortal } from 'react-dom';
 
+import { recordRecentProjectOpenPaths } from '@features/recent-projects/renderer';
 import { cn } from '@renderer/lib/utils';
 import { useStore } from '@renderer/store';
 import {
@@ -351,8 +352,20 @@ export const DateGroupedSessions = (): React.JSX.Element => {
   }, [activeProjectValue, effectiveSelectedRepositoryId, projects, repositoryGroups, viewMode]);
 
   const handleProjectValueChange = (id: string): void => {
-    if (viewMode === 'grouped') selectRepository(id);
+    if (viewMode === 'grouped') {
-    else setActiveProject(id);
+      const repositoryGroup = repositoryGroups.find((repo) => repo.id === id);
+      if (repositoryGroup) {
+        recordRecentProjectOpenPaths(repositoryGroup.worktrees.map((worktree) => worktree.path));
+      }
+      selectRepository(id);
+      return;
+    }
+
+    const project = projects.find((candidate) => candidate.id === id);
+    if (project?.path) {
+      recordRecentProjectOpenPaths([project.path]);
+    }
+    setActiveProject(id);
   };
 
   // Worktree state
@@ -368,6 +381,7 @@ export const DateGroupedSessions = (): React.JSX.Element => {
   const worktreeName = activeWorktree?.name ?? 'main';
 
   const handleSelectWorktree = (worktree: Worktree): void => {
+    recordRecentProjectOpenPaths([worktree.path]);
     selectWorktree(worktree.id);
     setIsWorktreeDropdownOpen(false);
   };

src/renderer/components/team/TeamListView.tsx

@@ -1,5 +1,6 @@
 import { useCallback, useEffect, useMemo, useState } from 'react';
 
+import { recordRecentProjectOpenPaths } from '@features/recent-projects/renderer';
 import { api, isElectronMode } from '@renderer/api';
 import { confirm } from '@renderer/components/common/ConfirmDialog';
 import { Badge } from '@renderer/components/ui/badge';
@@ -475,10 +476,12 @@ export const TeamListView = (): React.JSX.Element => {
       if (target.kind === 'grouped') {
         useStore.setState(getWorktreeNavigationState(target.repositoryId, target.worktreeId));
         void useStore.getState().fetchSessionsInitial(target.worktreeId);
+        recordRecentProjectOpenPaths([projectPath]);
         return;
       }
 
       useStore.getState().selectProject(target.projectId);
+      recordRecentProjectOpenPaths([projectPath]);
     },
     [projects, repositoryGroups]
   );

test/features/recent-projects/renderer/utils/recentProjectOpenHistory.test.ts

@@ -0,0 +1,101 @@
+import { beforeEach, describe, expect, it } from 'vitest';
+
+import {
+  getRecentProjectLastOpenedAt,
+  recordRecentProjectOpenPaths,
+  resetRecentProjectOpenHistoryForTests,
+  sortRecentProjectsByDisplayPriority,
+} from '@features/recent-projects/renderer/utils/recentProjectOpenHistory';
+
+import type { DashboardRecentProject } from '@features/recent-projects/contracts';
+
+function makeProject(
+  overrides: Partial<DashboardRecentProject> = {}
+): DashboardRecentProject {
+  return {
+    id: 'repo:alpha',
+    name: 'alpha',
+    primaryPath: '/workspace/alpha',
+    associatedPaths: ['/workspace/alpha'],
+    mostRecentActivity: 1_000,
+    providerIds: ['anthropic'],
+    source: 'claude',
+    openTarget: {
+      type: 'existing-worktree',
+      repositoryId: 'repo-alpha',
+      worktreeId: 'wt-alpha',
+    },
+    ...overrides,
+  };
+}
+
+describe('recentProjectOpenHistory', () => {
+  beforeEach(() => {
+    resetRecentProjectOpenHistoryForTests();
+  });
+
+  it('records normalized paths and resolves the latest explicit open across associated paths', () => {
+    recordRecentProjectOpenPaths(['/Users/Test/Project/', '/users/test/project'], 5_000);
+    recordRecentProjectOpenPaths(['/Users/Test/Project/feature'], 8_000);
+
+    expect(
+      getRecentProjectLastOpenedAt(
+        makeProject({
+          primaryPath: '/users/test/project',
+          associatedPaths: ['/users/test/project', '/Users/Test/Project/feature'],
+        })
+      )
+    ).toBe(8_000);
+  });
+
+  it('prioritizes explicitly opened projects ahead of raw activity during the priority window', () => {
+    const openedProject = makeProject({
+      id: 'repo:opened',
+      name: 'opened',
+      primaryPath: '/workspace/opened',
+      associatedPaths: ['/workspace/opened'],
+      mostRecentActivity: 5_000,
+    });
+    const activeProject = makeProject({
+      id: 'repo:active',
+      name: 'active',
+      primaryPath: '/workspace/active',
+      associatedPaths: ['/workspace/active'],
+      mostRecentActivity: 9_000,
+    });
+
+    recordRecentProjectOpenPaths(['/workspace/opened'], 10_000);
+
+    expect(
+      sortRecentProjectsByDisplayPriority([activeProject, openedProject], 11_000).map(
+        (project) => project.id
+      )
+    ).toEqual(['repo:opened', 'repo:active']);
+  });
+
+  it('falls back to activity sorting after the explicit-open priority window expires', () => {
+    const openedProject = makeProject({
+      id: 'repo:opened',
+      name: 'opened',
+      primaryPath: '/workspace/opened',
+      associatedPaths: ['/workspace/opened'],
+      mostRecentActivity: 5_000,
+    });
+    const activeProject = makeProject({
+      id: 'repo:active',
+      name: 'active',
+      primaryPath: '/workspace/active',
+      associatedPaths: ['/workspace/active'],
+      mostRecentActivity: 9_000,
+    });
+
+    recordRecentProjectOpenPaths(['/workspace/opened'], 10_000);
+
+    expect(
+      sortRecentProjectsByDisplayPriority(
+        [activeProject, openedProject],
+        10_000 + 1000 * 60 * 60 * 72
+      ).map((project) => project.id)
+    ).toEqual(['repo:active', 'repo:opened']);
+  });
+});