diff --git a/apps/backend/cmd/kandev/main.go b/apps/backend/cmd/kandev/main.go
index d8c15b288d..91b8473925 100644
--- a/apps/backend/cmd/kandev/main.go
+++ b/apps/backend/cmd/kandev/main.go
@@ -358,6 +358,40 @@ func main() {
 	})
 	log.Info("Historical logs provider configured for task subscriptions (using messages and git status)")
 
+	// Set up session data provider for session subscriptions
+	// Sends initial git status when a client subscribes to a session
+	gateway.Hub.SetSessionDataProvider(func(ctx context.Context, sessionID string) ([]*ws.Message, error) {
+		session, err := taskRepo.GetTaskSession(ctx, sessionID)
+		if err != nil {
+			return nil, nil // Session not found, no data to send
+		}
+
+		var result []*ws.Message
+
+		// Send git status if available in session metadata
+		if session.Metadata != nil {
+			if gitStatus, ok := session.Metadata["git_status"]; ok {
+				gitStatusData, ok := gitStatus.(map[string]interface{})
+				if !ok {
+					gitStatusData = map[string]interface{}{"data": gitStatus}
+				}
+				// Ensure session_id is included
+				gitStatusData["session_id"] = sessionID
+				if session.TaskID != "" {
+					gitStatusData["task_id"] = session.TaskID
+				}
+
+				gitStatusNotification, err := ws.NewNotification("session.git.status", gitStatusData)
+				if err == nil {
+					result = append(result, gitStatusNotification)
+				}
+			}
+		}
+
+		return result, nil
+	})
+	log.Info("Session data provider configured for session subscriptions (git status)")
+
 	// NOTE: Pending permissions are now stored as messages and retrieved via the historical logs provider.
 	// The separate pending permissions provider is no longer needed.
 
diff --git a/apps/backend/internal/gateway/websocket/client.go b/apps/backend/internal/gateway/websocket/client.go
index 58fd02c5db..60f4c92a54 100644
--- a/apps/backend/internal/gateway/websocket/client.go
+++ b/apps/backend/internal/gateway/websocket/client.go
@@ -223,6 +223,9 @@ func (c *Client) handleSessionSubscribe(msg *ws.Message) {
 		"session_id": req.SessionID,
 	})
 	c.sendMessage(resp)
+
+	// Send initial session data (e.g., git status) if available
+	c.sendSessionData(req.SessionID)
 }
 
 func (c *Client) handleUserUnsubscribe(msg *ws.Message) {
@@ -272,6 +275,31 @@ func (c *Client) sendHistoricalLogs(taskID string) {
 	}
 }
 
+// sendSessionData sends initial session data (e.g., git status) to the client
+func (c *Client) sendSessionData(sessionID string) {
+	ctx := context.Background()
+	data, err := c.hub.GetSessionData(ctx, sessionID)
+	if err != nil {
+		c.logger.Error("Failed to get session data",
+			zap.String("session_id", sessionID),
+			zap.Error(err))
+		return
+	}
+
+	if len(data) == 0 {
+		return
+	}
+
+	c.logger.Debug("Sending session data",
+		zap.String("session_id", sessionID),
+		zap.Int("count", len(data)))
+
+	// Send each piece of session data as a notification
+	for _, msg := range data {
+		c.sendMessage(msg)
+	}
+}
+
 // handleUnsubscribe handles task.unsubscribe action
 func (c *Client) handleUnsubscribe(msg *ws.Message) {
 	var req SubscribeRequest
diff --git a/apps/backend/internal/gateway/websocket/hub.go b/apps/backend/internal/gateway/websocket/hub.go
index 2f7c52cc91..c05c0548e3 100644
--- a/apps/backend/internal/gateway/websocket/hub.go
+++ b/apps/backend/internal/gateway/websocket/hub.go
@@ -14,6 +14,9 @@ import (
 // HistoricalLogsProvider is a function that retrieves historical logs for a task
 type HistoricalLogsProvider func(ctx context.Context, taskID string) ([]*ws.Message, error)
 
+// SessionDataProvider is a function that retrieves initial data for a session subscription (e.g., git status)
+type SessionDataProvider func(ctx context.Context, sessionID string) ([]*ws.Message, error)
+
 // Hub manages all WebSocket client connections
 type Hub struct {
 	// All registered clients
@@ -39,6 +42,9 @@ type Hub struct {
 	// Optional provider for historical logs on subscription
 	historicalLogsProvider HistoricalLogsProvider
 
+	// Optional provider for session data on subscription (e.g., git status)
+	sessionDataProvider SessionDataProvider
+
 	mu     sync.RWMutex
 	logger *logger.Logger
 }
@@ -385,4 +391,17 @@ func (h *Hub) GetHistoricalLogs(ctx context.Context, taskID string) ([]*ws.Messa
 		return nil, nil
 	}
 	return h.historicalLogsProvider(ctx, taskID)
+}
+
+// SetSessionDataProvider sets the provider for session data on subscription
+func (h *Hub) SetSessionDataProvider(provider SessionDataProvider) {
+	h.sessionDataProvider = provider
+}
+
+// GetSessionData retrieves session data (e.g., git status) if a provider is set
+func (h *Hub) GetSessionData(ctx context.Context, sessionID string) ([]*ws.Message, error) {
+	if h.sessionDataProvider == nil {
+		return nil, nil
+	}
+	return h.sessionDataProvider(ctx, sessionID)
 }
\ No newline at end of file