diff --git a/src/bot/orchestrator.py b/src/bot/orchestrator.py
index a18248b0..1124d006 100644
--- a/src/bot/orchestrator.py
+++ b/src/bot/orchestrator.py
@@ -127,6 +127,7 @@ def __init__(self, settings: Settings, deps: Dict[str, Any]):
         self.settings = settings
         self.deps = deps
         self._active_requests: Dict[int, ActiveRequest] = {}
+        self._known_commands: frozenset[str] = frozenset()
 
     def _inject_deps(self, handler: Callable) -> Callable:  # type: ignore[type-arg]
         """Wrap handler to inject dependencies into context.bot_data."""
@@ -324,6 +325,9 @@ def _register_agentic_handlers(self, app: Application) -> None:
         if self.settings.enable_project_threads:
             handlers.append(("sync_threads", command.sync_threads))
 
+        # Derive known commands dynamically — avoids drift when new commands are added
+        self._known_commands: frozenset[str] = frozenset(cmd for cmd, _ in handlers)
+
         for cmd, handler in handlers:
             app.add_handler(CommandHandler(cmd, self._inject_deps(handler)))
 
@@ -336,6 +340,19 @@ def _register_agentic_handlers(self, app: Application) -> None:
             group=10,
         )
 
+        # Unknown slash commands -> Claude (passthrough in agentic mode).
+        # Registered commands are handled by CommandHandlers in group 0
+        # (higher priority). This catches any /command not matched there
+        # and forwards it to Claude, while skipping known commands to
+        # avoid double-firing.
+        app.add_handler(
+            MessageHandler(
+                filters.COMMAND,
+                self._inject_deps(self._handle_unknown_command),
+            ),
+            group=10,
+        )
+
         # File uploads -> Claude
         app.add_handler(
             MessageHandler(
@@ -1505,6 +1522,25 @@ async def _handle_agentic_media_message(
                 except Exception as img_err:
                     logger.warning("Image send failed", error=str(img_err))
 
+    async def _handle_unknown_command(
+        self, update: Update, context: ContextTypes.DEFAULT_TYPE
+    ) -> None:
+        """Forward unknown slash commands to Claude in agentic mode.
+
+        Known commands are handled by their own CommandHandlers (group 0);
+        this handler fires for *every* COMMAND message in group 10 but
+        returns immediately when the command is registered, preventing
+        double execution.
+        """
+        msg = update.effective_message
+        if not msg or not msg.text:
+            return
+        cmd = msg.text.split()[0].lstrip("/").split("@")[0].lower()
+        if cmd in self._known_commands:
+            return  # let the registered CommandHandler take care of it
+        # Forward unrecognised /commands to Claude as natural language
+        await self.agentic_text(update, context)
+
     def _voice_unavailable_message(self) -> str:
         """Return provider-aware guidance when voice feature is unavailable."""
         return (
diff --git a/tests/unit/test_orchestrator.py b/tests/unit/test_orchestrator.py
index 320f54ae..ce5e419e 100644
--- a/tests/unit/test_orchestrator.py
+++ b/tests/unit/test_orchestrator.py
@@ -149,8 +149,8 @@ def test_agentic_registers_text_document_photo_handlers(agentic_settings, deps):
         if isinstance(call[0][0], CallbackQueryHandler)
     ]
 
-    # 4 message handlers (text, document, photo, voice)
-    assert len(msg_handlers) == 4
+    # 5 message handlers (text, document, photo, voice, unknown commands passthrough)
+    assert len(msg_handlers) == 5
     # 2 callback handlers (stop: + cd:)
     assert len(cb_handlers) == 2
 
@@ -930,3 +930,63 @@ async def help_command(update, context):
 
     assert called["value"] is False
     update.effective_message.reply_text.assert_called_once()
+
+
+async def test_known_command_not_forwarded_to_claude(agentic_settings, deps):
+    """Known commands must NOT be forwarded to agentic_text."""
+    from unittest.mock import AsyncMock, MagicMock, patch
+
+    orchestrator = MessageOrchestrator(agentic_settings, deps)
+    app = MagicMock()
+    app.add_handler = MagicMock()
+    orchestrator.register_handlers(app)
+
+    update = MagicMock()
+    update.effective_message.text = "/start"
+    context = MagicMock()
+
+    with patch.object(
+        orchestrator, "agentic_text", new_callable=AsyncMock
+    ) as mock_claude:
+        await orchestrator._handle_unknown_command(update, context)
+        mock_claude.assert_not_called()
+
+
+async def test_unknown_command_forwarded_to_claude(agentic_settings, deps):
+    """Unknown slash commands must be forwarded to agentic_text."""
+    from unittest.mock import AsyncMock, MagicMock, patch
+
+    orchestrator = MessageOrchestrator(agentic_settings, deps)
+    app = MagicMock()
+    app.add_handler = MagicMock()
+    orchestrator.register_handlers(app)
+
+    update = MagicMock()
+    update.effective_message.text = "/workflow activate job-hunter"
+    context = MagicMock()
+
+    with patch.object(
+        orchestrator, "agentic_text", new_callable=AsyncMock
+    ) as mock_claude:
+        await orchestrator._handle_unknown_command(update, context)
+        mock_claude.assert_called_once_with(update, context)
+
+
+async def test_bot_suffixed_command_not_forwarded(agentic_settings, deps):
+    """Bot-suffixed known commands like /start@mybot must not reach Claude."""
+    from unittest.mock import AsyncMock, MagicMock, patch
+
+    orchestrator = MessageOrchestrator(agentic_settings, deps)
+    app = MagicMock()
+    app.add_handler = MagicMock()
+    orchestrator.register_handlers(app)
+
+    update = MagicMock()
+    update.effective_message.text = "/start@mybot"
+    context = MagicMock()
+
+    with patch.object(
+        orchestrator, "agentic_text", new_callable=AsyncMock
+    ) as mock_claude:
+        await orchestrator._handle_unknown_command(update, context)
+        mock_claude.assert_not_called()