Hide new task action in read-only channels

desktop/src/features/channels/ui/ChannelPane.tsx

@@ -534,6 +534,12 @@ export const ChannelPane = React.memo(function ChannelPane({
       resolveTaskAgentForMessage,
     ],
   );
+  const canCreateAgentConversation = React.useMemo(
+    () =>
+      enableAgentConversations &&
+      canOpenAgentConversationInChannel({ channel: activeChannel }),
+    [activeChannel, enableAgentConversations],
+  );
   React.useEffect(() => {
     if (!pendingAgentConversationOpen) {
       return;
@@ -1003,6 +1009,7 @@ export const ChannelPane = React.memo(function ChannelPane({
                 directMessageIntro={directMessageIntro}
                 scrollContainerRef={timelineScrollRef}
                 currentPubkey={currentPubkey}
+                canCreateAgentConversation={canCreateAgentConversation}
                 fetchOlder={fetchOlder}
                 followThreadById={followThreadById}
                 hasComposerOverlay={hasMainComposerOverlay}
@@ -1216,6 +1223,7 @@ export const ChannelPane = React.memo(function ChannelPane({
                   ? handleOpenAgentConversation
                   : undefined
               }
+              canCreateAgentConversation={canCreateAgentConversation}
               onSelectReplyTarget={onSelectThreadReplyTarget}
               onSend={handleSendThreadReply}
               onScrollTargetResolved={onThreadScrollTargetResolved}

desktop/src/features/messages/ui/MessageRow.tsx

@@ -118,6 +118,7 @@ export const MessageRow = React.memo(
   function MessageRow({
     channelId = null,
     collapseDepthGuideActions,
+    canCreateAgentConversation = true,
     connectDescendants = false,
     depthGuideDepths,
     highlighted = false,
@@ -155,6 +156,7 @@ export const MessageRow = React.memo(
   }: {
     agentConversationMarkers?: readonly AgentConversationMarker[];
     agentPubkeys?: ReadonlySet<string>;
+    canCreateAgentConversation?: boolean;
     channelId?: string | null;
     collapseDepthGuideActions?: ReadonlyArray<ThreadDepthGuideAction>;
     connectDescendants?: boolean;
@@ -471,7 +473,9 @@ export const MessageRow = React.memo(
           isUnread={isUnread}
           message={message}
           onContinueConversation={
-            message.pending ? undefined : onOpenAgentConversation
+            message.pending || !canCreateAgentConversation
+              ? undefined
+              : onOpenAgentConversation
           }
           onDelete={onDelete}
           onEdit={onEdit}
@@ -867,6 +871,7 @@ export const MessageRow = React.memo(
     prev.message.personaDisplayName === next.message.personaDisplayName &&
     prev.agentConversationMarkers === next.agentConversationMarkers &&
     prev.agentPubkeys === next.agentPubkeys &&
+    prev.canCreateAgentConversation === next.canCreateAgentConversation &&
     prev.collapseDepthGuideActions === next.collapseDepthGuideActions &&
     prev.collapseDescendantsLabel === next.collapseDescendantsLabel &&
     prev.connectDescendants === next.connectDescendants &&

desktop/src/features/messages/ui/MessageThreadPanel.tsx

@@ -44,6 +44,7 @@ type MessageThreadPanelProps = {
   channelId: string | null;
   channelName: string;
   currentPubkey?: string;
+  canCreateAgentConversation?: boolean;
   disabled?: boolean;
   enableAgentConversationLinks?: boolean;
   firstUnreadReplyId?: string | null;
@@ -356,6 +357,7 @@ export function MessageThreadPanel({
   channelId,
   channelName,
   currentPubkey,
+  canCreateAgentConversation = true,
   disabled = false,
   enableAgentConversationLinks = false,
   firstUnreadReplyId,
@@ -518,6 +520,7 @@ export function MessageThreadPanel({
               isFollowingThread={isFollowingThread}
               isUnread={isMessageUnreadById?.(threadHead.id)}
               message={threadHead}
+              canCreateAgentConversation={canCreateAgentConversation}
               onDelete={
                 onDelete && canManageMessage(threadHead, currentPubkey)
                   ? onDelete
@@ -584,6 +587,7 @@ export function MessageThreadPanel({
                       huddleMemberPubkeysPending={huddleMemberPubkeysPending}
                       isUnread={isMessageUnreadById?.(entry.message.id)}
                       message={entry.message}
+                      canCreateAgentConversation={canCreateAgentConversation}
                       onDelete={
                         onDelete &&
                         canManageMessage(entry.message, currentPubkey)

desktop/src/features/messages/ui/MessageTimeline.tsx

@@ -47,6 +47,7 @@ type MessageTimelineProps = {
   emptyTitle?: string;
   emptyDescription?: string;
   currentPubkey?: string;
+  canCreateAgentConversation?: boolean;
   fetchOlder?: () => Promise<void>;
   hasOlderMessages?: boolean;
   /** Optional external ref to the scroll container — used by the parent to
@@ -159,6 +160,7 @@ const MessageTimelineBase = React.forwardRef<
     emptyTitle = "No messages yet",
     emptyDescription = "Send the first message to start the thread.",
     currentPubkey,
+    canCreateAgentConversation = true,
     fetchOlder,
     hasComposerOverlay = true,
     contentTopPadding = "chrome",
@@ -619,6 +621,7 @@ const MessageTimelineBase = React.forwardRef<
                     channelName={channelName}
                     channelType={channelType}
                     currentPubkey={currentPubkey}
+                    canCreateAgentConversation={canCreateAgentConversation}
                     firstUnreadMessageId={firstUnreadMessageId}
                     followThreadById={followThreadById}
                     highlightedMessageId={highlightedMessageId}

desktop/src/features/messages/ui/TimelineMessageList.tsx

@@ -33,6 +33,7 @@ type TimelineMessageListProps = {
   channelName?: string;
   channelType?: ChannelType | null;
   currentPubkey?: string;
+  canCreateAgentConversation?: boolean;
   huddleMemberPubkeys?: readonly string[];
   huddleMemberPubkeysPending?: boolean;
   /** Event id of the oldest unread top-level message; renders a "New" divider above it. */
@@ -90,6 +91,7 @@ export const TimelineMessageList = React.memo(function TimelineMessageList({
   channelName,
   channelType,
   currentPubkey,
+  canCreateAgentConversation = true,
   firstUnreadMessageId = null,
   followThreadById,
   highlightedMessageId = null,
@@ -214,6 +216,7 @@ export const TimelineMessageList = React.memo(function TimelineMessageList({
               agentConversationMarker={agentConversationMarkerByMessageId.get(
                 item.entry.message.id,
               )}
+              canCreateAgentConversation={canCreateAgentConversation}
               channelId={channelId}
               currentPubkey={currentPubkey}
               entry={item.entry}
@@ -248,6 +251,7 @@ export const TimelineMessageList = React.memo(function TimelineMessageList({
       agentConversationMarkers,
       agentPubkeys,
       agentConversationMarkerByMessageId,
+      canCreateAgentConversation,
       channelId,
       currentPubkey,
       followThreadById,
@@ -315,6 +319,7 @@ type MessageRowItemProps = Pick<
   TimelineMessageListProps,
   | "agentPubkeys"
   | "agentConversationMarkers"
+  | "canCreateAgentConversation"
   | "channelId"
   | "currentPubkey"
   | "followThreadById"
@@ -347,6 +352,7 @@ function MessageRowItem({
   agentPubkeys,
   agentConversationMarkers,
   agentConversationMarker,
+  canCreateAgentConversation,
   channelId,
   currentPubkey,
   entry,
@@ -402,6 +408,7 @@ function MessageRowItem({
         <MessageRow
           agentConversationMarkers={agentConversationMarkers}
           agentPubkeys={agentPubkeys}
+          canCreateAgentConversation={canCreateAgentConversation}
           channelId={channelId}
           highlighted={false}
           hoverBackground={false}
@@ -464,6 +471,7 @@ function MessageRowItem({
       <MessageRow
         agentConversationMarkers={agentConversationMarkers}
         agentPubkeys={agentPubkeys}
+        canCreateAgentConversation={canCreateAgentConversation}
         channelId={channelId}
         highlighted={message.id === highlightedMessageId || isSearchActive}
         huddleMemberPubkeys={huddleMemberPubkeys}