fix(agent): silence quiet_mode in python library use

run_agent.py

@@ -1916,13 +1916,16 @@ class AIAgent:
     def _should_emit_quiet_tool_messages(self) -> bool:
         """Return True when quiet-mode tool summaries should print directly.
 
-        When the caller provides ``tool_progress_callback`` (for example the CLI
-        TUI or a gateway progress renderer), that callback owns progress display.
-        Emitting quiet-mode summary lines here duplicates progress and leaks tool
-        previews into flows that are expected to stay silent, such as
-        ``hermes chat -q``.
+        Quiet mode is used by both the interactive CLI and embedded/library
+        callers. The CLI may still want compact progress hints when no callback
+        owns rendering. Embedded/library callers, on the other hand, expect
+        quiet mode to be truly silent.
         """
-        return self.quiet_mode and not self.tool_progress_callback
+        return (
+            self.quiet_mode
+            and not self.tool_progress_callback
+            and getattr(self, "platform", "") == "cli"
+        )
 
     def _emit_status(self, message: str) -> None:
         """Emit a lifecycle status message to both CLI and gateway channels.
@@ -11184,7 +11187,7 @@ class AIAgent:
                         self._last_content_tools_all_housekeeping = _all_housekeeping
                         if _all_housekeeping and self._has_stream_consumers():
                             self._mute_post_response = True
-                        elif self.quiet_mode:
+                        elif self.quiet_mode and getattr(self, "platform", "") == "cli":
                             clean = self._strip_think_blocks(turn_content).strip()
                             if clean:
                                 relayed = False