diff --git a/nanobot/agent/tools/filesystem.py b/nanobot/agent/tools/filesystem.py
index 9c169e4..b87da11 100644
--- a/nanobot/agent/tools/filesystem.py
+++ b/nanobot/agent/tools/filesystem.py
@@ -13,8 +13,11 @@ def _resolve_path(path: str, workspace: Path | None = None, allowed_dir: Path |
     if not p.is_absolute() and workspace:
         p = workspace / p
     resolved = p.resolve()
-    if allowed_dir and not str(resolved).startswith(str(allowed_dir.resolve())):
-        raise PermissionError(f"Path {path} is outside allowed directory {allowed_dir}")
+    if allowed_dir:
+        try:
+            resolved.relative_to(allowed_dir.resolve())
+        except ValueError:
+            raise PermissionError(f"Path {path} is outside allowed directory {allowed_dir}")
     return resolved
 
 
diff --git a/nanobot/channels/slack.py b/nanobot/channels/slack.py
index 4fc1f41..b0f9bbb 100644
--- a/nanobot/channels/slack.py
+++ b/nanobot/channels/slack.py
@@ -179,18 +179,21 @@ class SlackChannel(BaseChannel):
         except Exception as e:
             logger.debug("Slack reactions_add failed: {}", e)
 
-        await self._handle_message(
-            sender_id=sender_id,
-            chat_id=chat_id,
-            content=text,
-            metadata={
-                "slack": {
-                    "event": event,
-                    "thread_ts": thread_ts,
-                    "channel_type": channel_type,
-                }
-            },
-        )
+        try:
+            await self._handle_message(
+                sender_id=sender_id,
+                chat_id=chat_id,
+                content=text,
+                metadata={
+                    "slack": {
+                        "event": event,
+                        "thread_ts": thread_ts,
+                        "channel_type": channel_type,
+                    }
+                },
+            )
+        except Exception:
+            logger.exception("Error handling Slack message from {}", sender_id)
 
     def _is_allowed(self, sender_id: str, chat_id: str, channel_type: str) -> bool:
         if channel_type == "im":
diff --git a/nanobot/cli/commands.py b/nanobot/cli/commands.py
index 6155463..f1f9b30 100644
--- a/nanobot/cli/commands.py
+++ b/nanobot/cli/commands.py
@@ -668,6 +668,33 @@ def channels_status():
         slack_config
     )
 
+    # DingTalk
+    dt = config.channels.dingtalk
+    dt_config = f"client_id: {dt.client_id[:10]}..." if dt.client_id else "[dim]not configured[/dim]"
+    table.add_row(
+        "DingTalk",
+        "✓" if dt.enabled else "✗",
+        dt_config
+    )
+
+    # QQ
+    qq = config.channels.qq
+    qq_config = f"app_id: {qq.app_id[:10]}..." if qq.app_id else "[dim]not configured[/dim]"
+    table.add_row(
+        "QQ",
+        "✓" if qq.enabled else "✗",
+        qq_config
+    )
+
+    # Email
+    em = config.channels.email
+    em_config = em.imap_host if em.imap_host else "[dim]not configured[/dim]"
+    table.add_row(
+        "Email",
+        "✓" if em.enabled else "✗",
+        em_config
+    )
+
     console.print(table)