diff --git a/gateway/platforms/discord.py b/gateway/platforms/discord.py
index 7c735e624..2060f344f 100644
--- a/gateway/platforms/discord.py
+++ b/gateway/platforms/discord.py
@@ -1429,15 +1429,23 @@ class DiscordAdapter(BasePlatformAdapter):
         command_text: str,
         followup_msg: str | None = None,
     ) -> None:
-        """Common handler for simple slash commands that dispatch a command string."""
+        """Common handler for simple slash commands that dispatch a command string.
+
+        Defers the interaction (shows "thinking..."), dispatches the command,
+        then cleans up the deferred response.  If *followup_msg* is provided
+        the "thinking..." indicator is replaced with that text; otherwise it
+        is deleted so the channel isn't cluttered.
+        """
         await interaction.response.defer(ephemeral=True)
         event = self._build_slash_event(interaction, command_text)
         await self.handle_message(event)
-        if followup_msg:
-            try:
-                await interaction.followup.send(followup_msg, ephemeral=True)
-            except Exception as e:
-                logger.debug("Discord followup failed: %s", e)
+        try:
+            if followup_msg:
+                await interaction.edit_original_response(content=followup_msg)
+            else:
+                await interaction.delete_original_response()
+        except Exception as e:
+            logger.debug("Discord interaction cleanup failed: %s", e)
 
     def _register_slash_commands(self) -> None:
         """Register Discord slash commands on the command tree."""
@@ -1462,9 +1470,7 @@ class DiscordAdapter(BasePlatformAdapter):
         @tree.command(name="reasoning", description="Show or change reasoning effort")
         @discord.app_commands.describe(effort="Reasoning effort: xhigh, high, medium, low, minimal, or none.")
         async def slash_reasoning(interaction: discord.Interaction, effort: str = ""):
-            await interaction.response.defer(ephemeral=True)
-            event = self._build_slash_event(interaction, f"/reasoning {effort}".strip())
-            await self.handle_message(event)
+            await self._run_simple_slash(interaction, f"/reasoning {effort}".strip())
 
         @tree.command(name="personality", description="Set a personality")
         @discord.app_commands.describe(name="Personality name. Leave empty to list available.")
@@ -1537,9 +1543,7 @@ class DiscordAdapter(BasePlatformAdapter):
             discord.app_commands.Choice(name="status — show current mode", value="status"),
         ])
         async def slash_voice(interaction: discord.Interaction, mode: str = ""):
-            await interaction.response.defer(ephemeral=True)
-            event = self._build_slash_event(interaction, f"/voice {mode}".strip())
-            await self.handle_message(event)
+            await self._run_simple_slash(interaction, f"/voice {mode}".strip())
 
         @tree.command(name="update", description="Update Hermes Agent to the latest version")
         async def slash_update(interaction: discord.Interaction):