diff --git a/internal/cli/tui.go b/internal/cli/tui.go
index cb00d83..3c1fb5d 100644
--- a/internal/cli/tui.go
+++ b/internal/cli/tui.go
@@ -125,6 +125,11 @@ type clusterBrowserModel struct {
 	memberRows       []memberRow
 	memberOff        int
 	memberIndex      int
+	lastClickFocus   tuiFocus
+	lastClickIndex   int
+	lastClickX       int
+	lastClickY       int
+	lastClickAt      time.Time
 	detailView       viewport.Model
 	searchInput      textinput.Model
 	detailCache      map[int64]store.ClusterDetail
@@ -148,6 +153,7 @@ type tuiMenuItem struct {
 }
 
 const tuiMenuSeparatorAction = "separator"
+const tuiDoubleClickWindow = 450 * time.Millisecond
 
 func (item tuiMenuItem) selectable() bool {
 	return item.action != "" && item.action != tuiMenuSeparatorAction
@@ -1033,6 +1039,7 @@ func (m *clusterBrowserModel) handleMouse(msg tea.MouseMsg) {
 		if msg.Action != tea.MouseActionPress {
 			return
 		}
+		now := time.Now()
 		switch {
 		case layout.clusters.contains(msg.X, msg.Y):
 			m.focus = focusClusters
@@ -1049,6 +1056,7 @@ func (m *clusterBrowserModel) handleMouse(msg tea.MouseMsg) {
 				m.selected = index
 				m.loadSelectedCluster()
 				m.status = fmt.Sprintf("Cluster %d", m.payload.Clusters[m.selected].ID)
+				m.finishRowClick(focusClusters, index, msg.X, msg.Y, now)
 			}
 		case layout.members.contains(msg.X, msg.Y):
 			m.focus = focusMembers
@@ -1065,6 +1073,7 @@ func (m *clusterBrowserModel) handleMouse(msg tea.MouseMsg) {
 				if !m.memberRows[index].selectable {
 					m.memberIndex = index
 					m.status = m.memberRows[index].label
+					m.clearLastClick()
 					return
 				}
 				previous := m.memberIndex
@@ -1073,6 +1082,7 @@ func (m *clusterBrowserModel) handleMouse(msg tea.MouseMsg) {
 					m.detailView.GotoTop()
 				}
 				m.status = fmt.Sprintf("Selected #%d", m.memberRows[m.memberIndex].thread().Number)
+				m.finishRowClick(focusMembers, index, msg.X, msg.Y, now)
 			}
 		case layout.detail.contains(msg.X, msg.Y):
 			m.focus = focusDetail
@@ -1087,6 +1097,32 @@ func (m *clusterBrowserModel) handleMouse(msg tea.MouseMsg) {
 	}
 }
 
+func (m *clusterBrowserModel) finishRowClick(focus tuiFocus, index, x, y int, now time.Time) {
+	if m.isDoubleClick(focus, index, x, y, now) {
+		m.clearLastClick()
+		m.runAction("open")
+		return
+	}
+	m.lastClickFocus = focus
+	m.lastClickIndex = index
+	m.lastClickX = x
+	m.lastClickY = y
+	m.lastClickAt = now
+}
+
+func (m *clusterBrowserModel) isDoubleClick(focus tuiFocus, index, x, y int, now time.Time) bool {
+	return !m.lastClickAt.IsZero() &&
+		m.lastClickFocus == focus &&
+		m.lastClickIndex == index &&
+		m.lastClickX == x &&
+		m.lastClickY == y &&
+		now.Sub(m.lastClickAt) <= tuiDoubleClickWindow
+}
+
+func (m *clusterBrowserModel) clearLastClick() {
+	m.lastClickAt = time.Time{}
+}
+
 func (m *clusterBrowserModel) handleMenuMouse(layout tuiLayout, msg tea.MouseMsg) {
 	if msg.Action == tea.MouseActionMotion {
 		index, ok := m.menuIndexAtMouse(layout, msg.X, msg.Y)
@@ -3377,7 +3413,7 @@ func (r memberRow) thread() store.Thread {
 	return r.member.Thread
 }
 
-func openURL(url string) error {
+var openURL = func(url string) error {
 	if strings.TrimSpace(url) == "" {
 		return fmt.Errorf("no URL selected")
 	}
diff --git a/internal/cli/tui_test.go b/internal/cli/tui_test.go
index 7ef39db..2aaf832 100644
--- a/internal/cli/tui_test.go
+++ b/internal/cli/tui_test.go
@@ -284,6 +284,77 @@ func TestTUIMouseSelectsClusterRows(t *testing.T) {
 	}
 }
 
+func TestTUIMouseDoubleClickOpensClusterRepresentative(t *testing.T) {
+	model := newClusterBrowserModel(context.Background(), nil, 0, clusterBrowserPayload{
+		Repository: "openclaw/openclaw",
+		Sort:       "recent",
+		Clusters:   sampleTUIClusters(),
+	})
+	model.width = 140
+	model.height = 32
+	layout := model.layout()
+	restoreOpenURL, opened := captureOpenURL(t)
+
+	msg := tea.MouseMsg{
+		X:      layout.clusters.x + 2,
+		Y:      layout.clusters.y + 4,
+		Action: tea.MouseActionPress,
+		Button: tea.MouseButtonLeft,
+	}
+	model.handleMouse(msg)
+	if len(*opened) != 0 {
+		t.Fatalf("single click opened URL: %#v", *opened)
+	}
+	model.handleMouse(msg)
+	restoreOpenURL()
+
+	if got := *opened; len(got) != 1 || got[0] != "https://github.com/openclaw/openclaw/issues/11" {
+		t.Fatalf("opened URLs = %#v", got)
+	}
+}
+
+func TestTUIMouseDoubleClickOpensMemberThread(t *testing.T) {
+	model := newClusterBrowserModel(context.Background(), nil, 0, clusterBrowserPayload{
+		Repository: "openclaw/openclaw",
+		Sort:       "recent",
+		Clusters:   sampleTUIClusters(),
+	})
+	model.width = 140
+	model.height = 32
+	model.memberRows = []memberRow{
+		{label: "ISSUES (1)"},
+		{selectable: true, member: store.ClusterMemberDetail{Thread: store.Thread{
+			ID:              42,
+			Number:          42,
+			Kind:            "issue",
+			State:           "open",
+			Title:           "Selected issue",
+			HTMLURL:         "https://github.com/openclaw/openclaw/issues/42",
+			UpdatedAtGitHub: "2026-04-27T10:00:00Z",
+		}}},
+	}
+	model.memberIndex = 0
+	layout := model.layout()
+	restoreOpenURL, opened := captureOpenURL(t)
+
+	msg := tea.MouseMsg{
+		X:      layout.members.x + 2,
+		Y:      layout.members.y + 4,
+		Action: tea.MouseActionPress,
+		Button: tea.MouseButtonLeft,
+	}
+	model.handleMouse(msg)
+	if len(*opened) != 0 {
+		t.Fatalf("single click opened URL: %#v", *opened)
+	}
+	model.handleMouse(msg)
+	restoreOpenURL()
+
+	if got := *opened; len(got) != 1 || got[0] != "https://github.com/openclaw/openclaw/issues/42" {
+		t.Fatalf("opened URLs = %#v", got)
+	}
+}
+
 func TestTUIMouseSelectsVisibleClusterWindow(t *testing.T) {
 	clusters := make([]store.ClusterSummary, 0, 30)
 	for i := 0; i < 30; i++ {
@@ -2537,6 +2608,26 @@ func TestTUIPanePositionLabels(t *testing.T) {
 	}
 }
 
+func captureOpenURL(t *testing.T) (func(), *[]string) {
+	t.Helper()
+	previous := openURL
+	opened := []string{}
+	openURL = func(url string) error {
+		opened = append(opened, url)
+		return nil
+	}
+	restored := false
+	restore := func() {
+		if restored {
+			return
+		}
+		openURL = previous
+		restored = true
+	}
+	t.Cleanup(restore)
+	return restore, &opened
+}
+
 func sampleTUIClusters() []store.ClusterSummary {
 	return []store.ClusterSummary{
 		{