feat(cli): rotating task-oriented composer placeholder (C-09)

cli.py

@@ -5483,6 +5483,13 @@ class HermesCLI(CLIAgentSetupMixin, CLICommandsMixin, CLIBillingMixin):
         self._slash_confirm_state = None
         self._slash_confirm_deadline = 0
         self._model_picker_state = None
+        # Rotating task-oriented composer placeholder (C-09), chosen once per
+        # session so it stays stable while the empty input box is on screen.
+        try:
+            from hermes_cli.tips import get_random_composer_placeholder
+            self._composer_placeholder = get_random_composer_placeholder()
+        except Exception:
+            self._composer_placeholder = ""
         # Armed when a bare `/resume` prints the recent-sessions list so the
         # very next bare numeric input (e.g. `3`) resolves to that session.
         # Holds the exact list used for index resolution; one-shot (cleared on
@@ -18801,7 +18808,11 @@ class HermesCLI(CLIAgentSetupMixin, CLICommandsMixin, CLIBillingMixin):
                 _stash_hint = ""
             if _stash_hint:
                 return _stash_hint
-            return ""
+            # Idle + empty composer: show a rotating task-oriented example to
+            # nudge the user toward a high-value first action (C-09). Chosen
+            # once per session (self._composer_placeholder) so it stays stable
+            # while being read, not flickering every render.
+            return getattr(cli_ref, "_composer_placeholder", "") or ""
 
         input_area.control.input_processors.append(_PlaceholderProcessor(_get_placeholder))