fix

src/langbot/pkg/api/http/controller/groups/workflows/websocket_chat.py

@@ -109,8 +109,15 @@ class WorkflowWebSocketChatRouterGroup(group.RouterGroup):
                 )
                 try:
                     await quart.websocket.send(json.dumps({'type': 'error', 'message': str(e)}))
-                except:
-                    pass
+                except Exception as send_error:
+                    logger.debug(
+                        'Failed to send error message to workflow websocket client',
+                        exc_info=True,
+                        extra={
+                            'workflow_uuid': workflow_uuid,
+                            'send_error': str(send_error),
+                        },
+                    )
 
         @self.route('/messages/<session_type>', methods=['GET'])
         async def get_messages(workflow_uuid: str, session_type: str) -> str:

src/langbot/pkg/api/http/service/workflow.py

@@ -340,7 +340,11 @@ class WorkflowService:
                 if bot:
                     bot_name = bot.get('name', 'WebChat')
             except Exception:
-                pass
+                logger.warning(
+                    "Failed to fetch bot info for bot_id=%s; using default bot name.",
+                    bot_id,
+                    exc_info=True,
+                )
 
         # Create execution context
         context = ExecutionContext(

src/langbot/pkg/workflow/nodes/call_workflow.py

@@ -5,7 +5,7 @@ Node metadata is loaded from: ../../templates/metadata/nodes/call_workflow.yaml
 
 from __future__ import annotations
 
-from typing import Any, Optional
+from typing import Any
 
 from langbot_plugin.api.entities.builtin.workflow.entities import ExecutionContext
 

src/langbot/pkg/workflow/nodes/llm_call.py

@@ -106,8 +106,9 @@ class LLMCallNode(WorkflowNode):
         try:
             if hasattr(self.ap, 'sensitive_meta') and hasattr(self.ap.sensitive_meta, 'data'):
                 sensitive_words = self.ap.sensitive_meta.data.get('words', [])
-        except Exception:
-            pass
+        except Exception as e:
+            logger.warning("Failed to load sensitive words from sensitive_meta: %s", e)
+            sensitive_words = []
 
         if not sensitive_words:
             return text, False, ''
@@ -125,8 +126,11 @@ class LLMCallNode(WorkflowNode):
                         if hasattr(self.ap, 'sensitive_meta') and hasattr(self.ap.sensitive_meta, 'data'):
                             mask_word = self.ap.sensitive_meta.data.get('mask_word', '')
                             mask = self.ap.sensitive_meta.data.get('mask', '*')
-                    except Exception:
-                        pass
+                    except Exception as e:
+                        # Keep default mask settings when sensitive metadata is unavailable or malformed.
+                        logger.debug(
+                            f'LLM call node {self.node_id}: failed to read sensitive mask config, using defaults: {e}'
+                        )
 
                     for m in matches:
                         if mask_word:

src/langbot/pkg/workflow/nodes/reply_message.py

@@ -41,13 +41,19 @@ class ReplyMessageNode(WorkflowNode):
             for key, value in inputs.items():
                 try:
                     message = message.replace(f'{{{{{key}}}}}', str(value) if value is not None else '')
-                except Exception:
-                    pass
+                except Exception as e:
+                    logger.debug(
+                        'ReplyMessageNode failed to replace input template variable',
+                        extra={'node_id': self.node_id, 'key': str(key), 'error': str(e)},
+                    )
             for key, value in context.variables.items():
                 try:
                     message = message.replace(f'{{{{variables.{key}}}}}', str(value) if value is not None else '')
-                except Exception:
-                    pass
+                except Exception as e:
+                    logger.debug(
+                        'ReplyMessageNode failed to replace context template variable',
+                        extra={'node_id': self.node_id, 'key': str(key), 'error': str(e)},
+                    )
 
         message_str = str(message) if message is not None else ''
 

web/src/app/home/components/dynamic-form/DynamicFormItemComponent.tsx

@@ -69,7 +69,6 @@ import {
   DropdownMenuTrigger,
 } from '@/components/ui/dropdown-menu';
 import ModelsDialog from '@/app/home/components/models-dialog/ModelsDialog';
-import PromptEditorComponent from '@/app/home/components/dynamic-form/PromptEditorComponent';
 
 const resolveOptionLabel = (label: unknown, fallback: string): string => {
   if (!label || typeof label !== 'object') return fallback;

web/src/app/home/workflows/WorkflowDetailContent.tsx

@@ -50,7 +50,6 @@ export default function WorkflowDetailContent({ id }: { id: string }) {
     setSaving,
     setLoading,
     reset,
-    nodeTypes,
     setNodeTypes,
   } = useWorkflowStore();