diff --git a/packages/dashboard/app/components/TaskChatTab.tsx b/packages/dashboard/app/components/TaskChatTab.tsx
index d002170b9b..ec659f81d0 100644
--- a/packages/dashboard/app/components/TaskChatTab.tsx
+++ b/packages/dashboard/app/components/TaskChatTab.tsx
@@ -509,12 +509,15 @@ export function TaskChatTab({ task, projectId, active, addToast, sessionLive, on
   /**
    * FNXC:TaskDetailChat 2026-06-19-22:54:
    * The task-detail chat must never silently accept a question when no agent session will consume it. Keep idle chats sendable, but surface that the message is saved as guidance for the next task run instead of implying a live reply.
+   *
+   * FNXC:TaskDetailChat 2026-06-22-21:20:
+   * The idle "No agent is working on this task right now…" hint is suppressed (empty) per user request — idle chats stay sendable but no longer show the banner. Done/active hints remain. The render gates on a truthy sessionHint, so the empty idle case renders nothing.
    */
   const sessionHint = isDoneTask
     ? t("taskChat.doneSessionHint", "Send a message to start a refinement task for this completed task.")
     : activeSession
       ? t("taskChat.activeSessionHint", "Message the active agent session. Guidance is delivered to the running session in real time.")
-      : t("taskChat.idleSessionHint", "No agent is working on this task right now. Your message is saved as guidance and will reach an agent the next time this task runs.");
+      : "";
   const composerPlaceholder = isDoneTask
     ? t("taskChat.donePlaceholder", "Start a refinement task for this completed task")
     : t("taskChat.activePlaceholder", "Steer the currently executing agent");
diff --git a/packages/dashboard/app/components/__tests__/TaskChatTab.test.tsx b/packages/dashboard/app/components/__tests__/TaskChatTab.test.tsx
index 874e8e1c16..bbca4701d6 100644
--- a/packages/dashboard/app/components/__tests__/TaskChatTab.test.tsx
+++ b/packages/dashboard/app/components/__tests__/TaskChatTab.test.tsx
@@ -168,11 +168,9 @@ function expectTranscriptTextOrder(...texts: string[]) {
 }
 
 function expectIdleSessionHint() {
-  const idleHint = screen.getByTestId("task-chat-idle-hint");
-  expect(idleHint).toBeVisible();
-  expect(idleHint).toHaveTextContent(/no agent is working on this task right now/i);
-  expect(idleHint).toHaveTextContent(/saved as guidance/i);
-  expect(idleHint).toHaveTextContent(/next time this task runs/i);
+  // FNXC:TaskDetailChat 2026-06-22-21:20: The idle "No agent is working…" banner was removed per user request — idle chats stay sendable with no hint shown.
+  expect(screen.queryByTestId("task-chat-idle-hint")).not.toBeInTheDocument();
+  expect(screen.queryByText(/no agent is working on this task right now/i)).not.toBeInTheDocument();
   expect(screen.getByPlaceholderText("Steer the currently executing agent")).toBeInTheDocument();
 }