feat: add online status indicator dot on agent & member avatars

Backend:
- Track member presence via WebSocket connections in the Hub
- Broadcast member:online/offline events when users connect/disconnect
- Add GET /api/workspaces/{id}/members/online endpoint
- Add member:online and member:offline event type constants

Frontend:
- Add isOnline prop to ActorAvatar with a status dot at top-right corner
- Green dot = online, gray dot = offline, no dot = status unknown
- Fetch online member list via new query, update optimistically on WS events
- Derive agent online status from existing agent.status field
- Wire online status through ActorAvatar views wrapper (enabled by default)

packages/core/api/client.ts

@@ -511,6 +511,10 @@ export class ApiClient {
     return this.fetch(`/api/workspaces/${workspaceId}/members`);
   }
 
+  async getOnlineMembers(workspaceId: string): Promise<{ user_ids: string[] }> {
+    return this.fetch(`/api/workspaces/${workspaceId}/members/online`);
+  }
+
   async createMember(workspaceId: string, data: CreateMemberRequest): Promise<MemberWithUser> {
     return this.fetch(`/api/workspaces/${workspaceId}/members`, {
       method: "POST",

packages/core/realtime/use-realtime-sync.ts

@@ -25,6 +25,8 @@ import type {
   MemberAddedPayload,
   WorkspaceDeletedPayload,
   MemberRemovedPayload,
+  MemberOnlinePayload,
+  MemberOfflinePayload,
   IssueUpdatedPayload,
   IssueCreatedPayload,
   IssueDeletedPayload,
@@ -133,6 +135,7 @@ export function useRealtimeSync(
       "issue_reaction:added", "issue_reaction:removed",
       "subscriber:added", "subscriber:removed",
       "daemon:heartbeat",
+      "member:online", "member:offline",
     ]);
 
     const unsubAny = ws.onAny((msg) => {
@@ -242,6 +245,33 @@ export function useRealtimeSync(
       if (issue_id) qc.invalidateQueries({ queryKey: issueKeys.subscribers(issue_id) });
     });
 
+    // --- Member presence handlers (optimistic cache updates) ---
+
+    const unsubMemberOnline = ws.on("member:online", (p) => {
+      const { user_id } = p as MemberOnlinePayload;
+      if (!user_id) return;
+      const wsId = workspaceStore.getState().workspace?.id;
+      if (wsId) {
+        qc.setQueryData<string[]>(workspaceKeys.onlineMembers(wsId), (old) => {
+          if (!old) return [user_id];
+          if (old.includes(user_id)) return old;
+          return [...old, user_id];
+        });
+      }
+    });
+
+    const unsubMemberOffline = ws.on("member:offline", (p) => {
+      const { user_id } = p as MemberOfflinePayload;
+      if (!user_id) return;
+      const wsId = workspaceStore.getState().workspace?.id;
+      if (wsId) {
+        qc.setQueryData<string[]>(workspaceKeys.onlineMembers(wsId), (old) => {
+          if (!old) return old;
+          return old.filter((id) => id !== user_id);
+        });
+      }
+    });
+
     // --- Side-effect handlers (toast, navigation) ---
 
     const unsubWsDeleted = ws.on("workspace:deleted", (p) => {
@@ -298,6 +328,8 @@ export function useRealtimeSync(
       unsubWsDeleted();
       unsubMemberRemoved();
       unsubMemberAdded();
+      unsubMemberOnline();
+      unsubMemberOffline();
       timers.forEach(clearTimeout);
       timers.clear();
     };
@@ -316,6 +348,7 @@ export function useRealtimeSync(
           qc.invalidateQueries({ queryKey: inboxKeys.all(wsId) });
           qc.invalidateQueries({ queryKey: workspaceKeys.agents(wsId) });
           qc.invalidateQueries({ queryKey: workspaceKeys.members(wsId) });
+          qc.invalidateQueries({ queryKey: workspaceKeys.onlineMembers(wsId) });
           qc.invalidateQueries({ queryKey: workspaceKeys.skills(wsId) });
           qc.invalidateQueries({ queryKey: projectKeys.all(wsId) });
           qc.invalidateQueries({ queryKey: runtimeKeys.all(wsId) });

packages/core/types/events.ts

@@ -34,6 +34,8 @@ export type WSEventType =
   | "member:added"
   | "member:updated"
   | "member:removed"
+  | "member:online"
+  | "member:offline"
   | "daemon:heartbeat"
   | "daemon:register"
   | "skill:created"
@@ -149,6 +151,14 @@ export interface MemberRemovedPayload {
   workspace_id: string;
 }
 
+export interface MemberOnlinePayload {
+  user_id: string;
+}
+
+export interface MemberOfflinePayload {
+  user_id: string;
+}
+
 export interface SubscriberAddedPayload {
   issue_id: string;
   user_type: string;

packages/core/workspace/hooks.ts

@@ -2,12 +2,13 @@
 
 import { useQuery } from "@tanstack/react-query";
 import { useWorkspaceId } from "../hooks";
-import { memberListOptions, agentListOptions } from "./queries";
+import { memberListOptions, agentListOptions, onlineMembersOptions } from "./queries";
 
 export function useActorName() {
   const wsId = useWorkspaceId();
   const { data: members = [] } = useQuery(memberListOptions(wsId));
   const { data: agents = [] } = useQuery(agentListOptions(wsId));
+  const { data: onlineUserIds } = useQuery(onlineMembersOptions(wsId));
 
   const getMemberName = (userId: string) => {
     const m = members.find((m) => m.user_id === userId);
@@ -41,5 +42,18 @@ export function useActorName() {
     return null;
   };
 
-  return { getMemberName, getAgentName, getActorName, getActorInitials, getActorAvatarUrl };
+  const getActorOnlineStatus = (type: string, id: string): boolean | undefined => {
+    if (type === "agent") {
+      const agent = agents.find((a) => a.id === id);
+      if (!agent) return undefined;
+      return agent.status !== "offline";
+    }
+    if (type === "member") {
+      if (!onlineUserIds) return undefined;
+      return onlineUserIds.includes(id);
+    }
+    return undefined;
+  };
+
+  return { getMemberName, getAgentName, getActorName, getActorInitials, getActorAvatarUrl, getActorOnlineStatus };
 }

packages/core/workspace/queries.ts

@@ -5,6 +5,7 @@ export const workspaceKeys = {
   all: (wsId: string) => ["workspaces", wsId] as const,
   list: () => ["workspaces", "list"] as const,
   members: (wsId: string) => ["workspaces", wsId, "members"] as const,
+  onlineMembers: (wsId: string) => ["workspaces", wsId, "online-members"] as const,
   agents: (wsId: string) => ["workspaces", wsId, "agents"] as const,
   skills: (wsId: string) => ["workspaces", wsId, "skills"] as const,
   assigneeFrequency: (wsId: string) => ["workspaces", wsId, "assignee-frequency"] as const,
@@ -24,6 +25,16 @@ export function memberListOptions(wsId: string) {
   });
 }
 
+export function onlineMembersOptions(wsId: string) {
+  return queryOptions({
+    queryKey: workspaceKeys.onlineMembers(wsId),
+    queryFn: async () => {
+      const res = await api.getOnlineMembers(wsId);
+      return res.user_ids;
+    },
+  });
+}
+
 export function agentListOptions(wsId: string) {
   return queryOptions({
     queryKey: workspaceKeys.agents(wsId),

packages/ui/components/common/actor-avatar.tsx

@@ -9,6 +9,7 @@ interface ActorAvatarProps {
   initials: string;
   avatarUrl?: string | null;
   isAgent?: boolean;
+  isOnline?: boolean;
   size?: number;
   className?: string;
 }
@@ -18,6 +19,7 @@ function ActorAvatar({
   initials,
   avatarUrl,
   isAgent,
+  isOnline,
   size = 20,
   className,
 }: ActorAvatarProps) {
@@ -28,28 +30,46 @@ function ActorAvatar({
     setImgError(false);
   }, [avatarUrl]);
 
+  // Status dot size scales with avatar size
+  const dotSize = Math.max(6, Math.round(size * 0.3));
+
   return (
     <div
       data-slot="avatar"
       className={cn(
-        "inline-flex shrink-0 items-center justify-center rounded-full font-medium overflow-hidden",
+        "relative inline-flex shrink-0 items-center justify-center rounded-full font-medium overflow-visible",
         "bg-muted text-muted-foreground",
         className
       )}
       style={{ width: size, height: size, fontSize: size * 0.45 }}
       title={name}
     >
-      {avatarUrl && !imgError ? (
-        <img
-          src={avatarUrl}
-          alt={name}
-          className="h-full w-full object-cover"
-          onError={() => setImgError(true)}
+      <div className="h-full w-full overflow-hidden rounded-full">
+        {avatarUrl && !imgError ? (
+          <img
+            src={avatarUrl}
+            alt={name}
+            className="h-full w-full object-cover"
+            onError={() => setImgError(true)}
+          />
+        ) : isAgent ? (
+          <div className="flex h-full w-full items-center justify-center">
+            <Bot style={{ width: size * 0.55, height: size * 0.55 }} />
+          </div>
+        ) : (
+          <div className="flex h-full w-full items-center justify-center">
+            {initials}
+          </div>
+        )}
+      </div>
+      {isOnline !== undefined && (
+        <span
+          className={cn(
+            "absolute right-0 top-0 z-10 rounded-full ring-2 ring-background",
+            isOnline ? "bg-success" : "bg-muted-foreground/40"
+          )}
+          style={{ width: dotSize, height: dotSize, transform: "translate(25%, -25%)" }}
         />
-      ) : isAgent ? (
-        <Bot style={{ width: size * 0.55, height: size * 0.55 }} />
-      ) : (
-        initials
       )}
     </div>
   );

packages/views/common/actor-avatar.tsx

@@ -8,16 +8,18 @@ interface ActorAvatarProps {
   actorId: string;
   size?: number;
   className?: string;
+  showOnlineStatus?: boolean;
 }
 
-export function ActorAvatar({ actorType, actorId, size, className }: ActorAvatarProps) {
-  const { getActorName, getActorInitials, getActorAvatarUrl } = useActorName();
+export function ActorAvatar({ actorType, actorId, size, className, showOnlineStatus = true }: ActorAvatarProps) {
+  const { getActorName, getActorInitials, getActorAvatarUrl, getActorOnlineStatus } = useActorName();
   return (
     <ActorAvatarBase
       name={getActorName(actorType, actorId)}
       initials={getActorInitials(actorType, actorId)}
       avatarUrl={getActorAvatarUrl(actorType, actorId)}
       isAgent={actorType === "agent"}
+      isOnline={showOnlineStatus ? getActorOnlineStatus(actorType, actorId) : undefined}
       size={size}
       className={className}
     />

server/cmd/server/router.go

@@ -155,6 +155,7 @@ func NewRouter(pool *pgxpool.Pool, hub *realtime.Hub, bus *events.Bus) chi.Route
 					r.Use(middleware.RequireWorkspaceMemberFromURL(queries, "id"))
 					r.Get("/", h.GetWorkspace)
 					r.Get("/members", h.ListMembersWithUser)
+					r.Get("/members/online", h.GetOnlineMembers)
 					r.Post("/leave", h.LeaveWorkspace)
 				})
 				// Admin-level access

server/internal/handler/workspace.go

@@ -317,6 +317,13 @@ func (h *Handler) ListMembersWithUser(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, resp)
 }
 
+// GetOnlineMembers returns the user IDs of members currently connected via WebSocket.
+func (h *Handler) GetOnlineMembers(w http.ResponseWriter, r *http.Request) {
+	workspaceID := workspaceIDFromURL(r, "id")
+	userIDs := h.Hub.OnlineUserIDs(workspaceID)
+	writeJSON(w, http.StatusOK, map[string]any{"user_ids": userIDs})
+}
+
 type CreateMemberRequest struct {
 	Email string `json:"email"`
 	Role  string `json:"role"`

server/internal/realtime/hub.go

@@ -2,6 +2,7 @@ package realtime
 
 import (
 	"context"
+	"encoding/json"
 	"log/slog"
 	"net/http"
 	"strings"
@@ -68,6 +69,14 @@ func (h *Hub) Run() {
 			if h.rooms[room] == nil {
 				h.rooms[room] = make(map[*Client]bool)
 			}
+			// Check if user was already online in this workspace
+			wasOnline := false
+			for c := range h.rooms[room] {
+				if c.userID == client.userID {
+					wasOnline = true
+					break
+				}
+			}
 			h.rooms[room][client] = true
 			total := 0
 			for _, r := range h.rooms {
@@ -76,6 +85,10 @@ func (h *Hub) Run() {
 			h.mu.Unlock()
 			slog.Info("ws client connected", "workspace_id", room, "total_clients", total)
 
+			if !wasOnline {
+				h.broadcastPresence(room, client.userID, true)
+			}
+
 		case client := <-h.unregister:
 			h.mu.Lock()
 			room := client.workspaceID
@@ -88,6 +101,16 @@ func (h *Hub) Run() {
 					}
 				}
 			}
+			// Check if user still has connections in this workspace
+			stillOnline := false
+			if clients, ok := h.rooms[room]; ok {
+				for c := range clients {
+					if c.userID == client.userID {
+						stillOnline = true
+						break
+					}
+				}
+			}
 			total := 0
 			for _, r := range h.rooms {
 				total += len(r)
@@ -95,6 +118,10 @@ func (h *Hub) Run() {
 			h.mu.Unlock()
 			slog.Info("ws client disconnected", "workspace_id", room, "total_clients", total)
 
+			if !stillOnline {
+				h.broadcastPresence(room, client.userID, false)
+			}
+
 		case message := <-h.broadcast:
 			// Global broadcast for daemon events (no workspace filtering)
 			h.mu.RLock()
@@ -220,6 +247,42 @@ func (h *Hub) Broadcast(message []byte) {
 	h.broadcast <- message
 }
 
+// OnlineUserIDs returns the unique user IDs with active WebSocket connections
+// in the given workspace.
+func (h *Hub) OnlineUserIDs(workspaceID string) []string {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+
+	seen := make(map[string]bool)
+	if clients, ok := h.rooms[workspaceID]; ok {
+		for c := range clients {
+			seen[c.userID] = true
+		}
+	}
+
+	ids := make([]string, 0, len(seen))
+	for id := range seen {
+		ids = append(ids, id)
+	}
+	return ids
+}
+
+// broadcastPresence sends a member:online or member:offline event to the workspace.
+func (h *Hub) broadcastPresence(workspaceID, userID string, online bool) {
+	eventType := "member:offline"
+	if online {
+		eventType = "member:online"
+	}
+	data, err := json.Marshal(map[string]any{
+		"type":    eventType,
+		"payload": map[string]any{"user_id": userID},
+	})
+	if err != nil {
+		return
+	}
+	h.BroadcastToWorkspace(workspaceID, data)
+}
+
 // HandleWebSocket upgrades an HTTP connection to WebSocket with JWT or PAT auth.
 func HandleWebSocket(hub *Hub, mc MembershipChecker, pr PATResolver, w http.ResponseWriter, r *http.Request) {
 	tokenStr := r.URL.Query().Get("token")

server/pkg/protocol/events.go

@@ -45,6 +45,8 @@ const (
 	EventMemberAdded   = "member:added"
 	EventMemberUpdated = "member:updated"
 	EventMemberRemoved = "member:removed"
+	EventMemberOnline  = "member:online"
+	EventMemberOffline = "member:offline"
 
 	// Subscriber events
 	EventSubscriberAdded   = "subscriber:added"