多模态分类为图片理解模型，图片生成模型，视频理解模型

backend/agents/create_agent_info.py

@@ -409,10 +409,8 @@ async def create_agent_config(
             model_max_tokens = model_info["max_tokens"]
     else:
         model_name = "main_model"
-    # Use agent-level setting for context management, default to False
-    enable_context_manager = agent_info.get("enable_context_manager", False)
     cm_config = ContextManagerConfig(
-        enabled=enable_context_manager,
+        enabled=False,
         token_threshold=model_max_tokens,
     )
     agent_config = AgentConfig(

backend/apps/a2a_client_app.py

@@ -163,6 +163,12 @@ async def list_external_agents(
         )
 
     except Exception as e:
+        # Return empty list if table doesn't exist
+        if "does not exist" in str(e).lower():
+            return JSONResponse(
+                status_code=HTTPStatus.OK,
+                content={"status": "success", "data": []}
+            )
         logger.error(f"List agents failed: {e}", exc_info=True)
         raise HTTPException(
             status_code=HTTPStatus.INTERNAL_SERVER_ERROR,

backend/apps/skill_app.py

@@ -35,6 +35,9 @@ async def list_skills() -> JSONResponse:
     except SkillException as e:
         raise HTTPException(status_code=500, detail=str(e))
     except Exception as e:
+        # Return empty list if table doesn't exist
+        if "does not exist" in str(e).lower():
+            return JSONResponse(content={"skills": []})
         logger.error(f"Error listing skills: {e}")
         raise HTTPException(status_code=500, detail="Internal server error")
 

backend/consts/const.py

@@ -306,7 +306,10 @@ class VectorDatabaseType(str, Enum):
     "rerank": "RERANK_ID",
     "vlm": "VLM_ID",
     "stt": "STT_ID",
-    "tts": "TTS_ID"
+    "tts": "TTS_ID",
+    "imageUnderstanding": "IMAGE_UNDERSTANDING_ID",
+    "imageGeneration": "IMAGE_GENERATION_ID",
+    "videoUnderstanding": "VIDEO_UNDERSTANDING_ID"
 }
 
 APP_NAME = "APP_NAME"

backend/consts/model.py

@@ -166,7 +166,11 @@ class ModelConfig(BaseModel):
     multiEmbedding: SingleModelConfig
     rerank: SingleModelConfig
     vlm: SingleModelConfig
-    stt: STTModelConfig
+    stt: SingleModelConfig
+    tts: SingleModelConfig
+    imageUnderstanding: SingleModelConfig
+    imageGeneration: SingleModelConfig
+    videoUnderstanding: SingleModelConfig
 
 
 class AppConfig(BaseModel):
@@ -349,7 +353,6 @@ class AgentInfoRequest(BaseModel):
     related_external_agent_ids: Optional[List[int]] = None
     group_ids: Optional[List[int]] = None
     ingroup_permission: Optional[str] = None
-    enable_context_manager: Optional[bool] = None
     version_no: int = 0
 
 

backend/consts/provider.py

@@ -14,6 +14,11 @@ class ProviderEnum(str, Enum):
 SILICON_BASE_URL = "https://api.siliconflow.cn/v1/"
 SILICON_GET_URL = "https://api.siliconflow.cn/v1/models"
 
+# Silicon Flow model tags (for filtering)
+# Based on SiliconFlow website: https://cloud.siliconflow.cn/me/models
+SILICON_TAG_VISION = "VLM"  # Vision tag - VLM models (e.g., Kimi-K2.6, Qwen3.6)
+SILICON_TAG_VIDEO = "视频"  # Video tag - Video understanding models
+
 # Dashcope
 DASHSCOPE_BASE_URL = "https://dashscope.aliyuncs.com/compatible-mode/v1/"
 DASHSCOPE_GET_URL = "https://dashscope.aliyuncs.com/api/v1/models"

backend/database/a2a_agent_db.py

@@ -1245,12 +1245,19 @@ def get_server_agent_ids(tenant_id: str) -> set[int]:
     Returns:
         Set of agent IDs that have A2A Server registration.
     """
-    with _get_db_session() as session:
-        agent_ids = session.query(A2AServerAgent.agent_id).filter(
-            A2AServerAgent.tenant_id == tenant_id,
-            A2AServerAgent.delete_flag != 'Y'
-        ).all()
-        return {row[0] for row in agent_ids}
+    try:
+        with _get_db_session() as session:
+            agent_ids = session.query(A2AServerAgent.agent_id).filter(
+                A2AServerAgent.tenant_id == tenant_id,
+                A2AServerAgent.delete_flag != 'Y'
+            ).all()
+            return {row[0] for row in agent_ids}
+    except Exception as e:
+        # Return empty set if table doesn't exist (migration not applied)
+        if "does not exist" in str(e).lower():
+            logger.warning(f"A2A server agent table not found, returning empty set: {e}")
+            return set()
+        raise
 
 
 # =============================================================================

backend/database/agent_db.py

@@ -194,7 +194,6 @@ def create_agent(agent_info, tenant_id: str, user_id: str):
             "business_logic_model_name": new_agent.business_logic_model_name,
             "group_ids": new_agent.group_ids,
             "is_new": new_agent.is_new,
-            "enable_context_manager": new_agent.enable_context_manager,
             "current_version_no": new_agent.current_version_no,
             "version_no": new_agent.version_no,
             "created_by": new_agent.created_by,

backend/database/agent_version_db.py

@@ -57,14 +57,42 @@
     """
     Query version list for an agent
     """
-    with get_db_session() as session:
-        versions = session.query(AgentVersion).filter(
-            AgentVersion.agent_id == agent_id,
-            AgentVersion.tenant_id == tenant_id,
-            AgentVersion.delete_flag == 'N',
-        ).order_by(AgentVersion.version_no.desc()).all()
-
-        return [as_dict(v) for v in versions]
+    try:
+        with get_db_session() as session:
+            versions = session.query(AgentVersion).filter(
+                AgentVersion.agent_id == agent_id,
+                AgentVersion.tenant_id == tenant_id,
+                AgentVersion.delete_flag == 'N',
+            ).order_by(AgentVersion.version_no.desc()).all()
+
+            return [as_dict(v) for v in versions]
+    except Exception as e:
+        error_str = str(e).lower()
+        # If is_a2a column doesn't exist, retry with explicit column selection
+        if "is_a2a" in str(e) and ("does not exist" in error_str or "undefinedcolumn" in error_str):
+            with get_db_session() as session:
+                from sqlalchemy import select
+                columns = [
+                    AgentVersion.id,
+                    AgentVersion.tenant_id,
+                    AgentVersion.agent_id,
+                    AgentVersion.version_no,
+                    AgentVersion.version_name,
+                    AgentVersion.release_note,
+                    AgentVersion.source_version_no,
+                    AgentVersion.source_type,
+                    AgentVersion.status,
+                    AgentVersion.created_by,
+                    AgentVersion.create_time,
+                ]
+                versions = session.query(*columns).filter(
+                    AgentVersion.agent_id == agent_id,
+                    AgentVersion.tenant_id == tenant_id,
+                    AgentVersion.delete_flag == 'N',
+                ).order_by(AgentVersion.version_no.desc()).all()
+
+                return [dict(zip([c.key for c in columns], v)) for v in versions]
+        raise
 
 
 def query_current_version_no(
@@ -141,11 +169,35 @@
     Insert a new version metadata record
     Returns: version id
     """
-    with get_db_session() as session:
-        result = session.execute(
-            insert(AgentVersion).values(**version_data).returning(AgentVersion.id)
-        )
-        return result.scalar_one()
+    from sqlalchemy import text
+
+    # First try with full data
+    try:
+        with get_db_session() as session:
+            result = session.execute(
+                insert(AgentVersion).values(**version_data).returning(AgentVersion.id)
+            )
+            return result.scalar_one()
+    except Exception as e:
+        error_str = str(e).lower()
+        # If is_a2a column doesn't exist, retry without it using native SQL
+        if "is_a2a" in str(e) and ("does not exist" in error_str or "undefinedcolumn" in error_str):
+            logger.info("is_a2a column not found, using native SQL to insert")
+            # Build column list and parameter placeholders
+            columns = [k for k in version_data.keys() if k != 'is_a2a']
+            col_list = ', '.join(columns)
+            placeholders = ', '.join([f':{c}' for c in columns])
+            insert_sql = text(f"""
+                INSERT INTO nexent.ag_tenant_agent_version_t (id, {col_list})
+                VALUES (nextval('nexent.ag_tenant_agent_version_t_id_seq'), {placeholders})
+                RETURNING id
+            """)
+            # Build params without is_a2a
+            params = {k: v for k, v in version_data.items() if k != 'is_a2a'}
+            with get_db_session() as session:
+                result = session.execute(insert_sql, params)
+                return result.scalar_one()
+        raise
 
 
 def update_version_status(

backend/database/client.py

@@ -294,7 +294,13 @@ def get_db_session(db_session=None):
     except Exception as e:
         if db_session is None:
             session.rollback()
-        logger.error(f"Database operation failed: {str(e)}")
+        error_str = str(e).lower()
+        # For "is_a2a column does not exist" errors, just log warning and raise
+        # The caller should handle this by removing the field and retrying
+        if "is_a2a" in str(e) and "does not exist" in error_str:
+            logger.warning(f"Database operation failed (expected for missing is_a2a column): {str(e)}")
+        else:
+            logger.error(f"Database operation failed: {str(e)}")
         raise e
     finally:
         if db_session is None:
@@ -373,6 +379,11 @@ def get_monitoring_db_session(db_session=None):
     except Exception as e:
         if db_session is None:
             session.rollback()
+        # Silently ignore "table does not exist" errors for monitoring
+        # This allows the app to work even if the monitoring table hasn't been created yet
+        if "does not exist" in str(e).lower():
+            logger.warning(f"Monitoring table not found, skipping: {str(e)}")
+            return
         logger.error(f"Monitoring database operation failed: {str(e)}")
         raise
     finally:

backend/database/db_models.py

@@ -317,7 +317,6 @@ class AgentInfo(TableBase):
     is_new = Column(Boolean, default=False, doc="Whether this agent is marked as new for the user")
     current_version_no = Column(Integer, nullable=True, doc="Current published version number. NULL means no version published yet")
     ingroup_permission = Column(String(30), doc="In-group permission: EDIT, READ_ONLY, PRIVATE")
-    enable_context_manager = Column(Boolean, default=False, doc="Whether to enable context management (compression) for this agent")
 
 
 class ToolInstance(TableBase):

backend/database/skill_db.py

@@ -44,40 +44,53 @@ def create_or_update_skill_by_skill_info(skill_info, tenant_id: str, user_id: st
     skill_info_dict.setdefault("created_by", user_id)
     skill_info_dict.setdefault("updated_by", user_id)
 
-    with get_db_session() as session:
-        query = session.query(SkillInstance).filter(
-            SkillInstance.tenant_id == tenant_id,
-            SkillInstance.agent_id == skill_info_dict.get('agent_id'),
-            SkillInstance.delete_flag != 'Y',
-            SkillInstance.skill_id == skill_info_dict.get('skill_id'),
-            SkillInstance.version_no == version_no
-        )
-        skill_instance = query.first()
-
-        if skill_instance:
-            for key, value in skill_info_dict.items():
-                if hasattr(skill_instance, key):
-                    setattr(skill_instance, key, value)
-        else:
-            new_skill_instance = SkillInstance(
-                **filter_property(skill_info_dict, SkillInstance))
-            session.add(new_skill_instance)
-            session.flush()
-            skill_instance = new_skill_instance
+    try:
+        with get_db_session() as session:
+            query = session.query(SkillInstance).filter(
+                SkillInstance.tenant_id == tenant_id,
+                SkillInstance.agent_id == skill_info_dict.get('agent_id'),
+                SkillInstance.delete_flag != 'Y',
+                SkillInstance.skill_id == skill_info_dict.get('skill_id'),
+                SkillInstance.version_no == version_no
+            )
+            skill_instance = query.first()
+
+            if skill_instance:
+                for key, value in skill_info_dict.items():
+                    if hasattr(skill_instance, key):
+                        setattr(skill_instance, key, value)
+            else:
+                new_skill_instance = SkillInstance(
+                    **filter_property(skill_info_dict, SkillInstance))
+                session.add(new_skill_instance)
+                session.flush()
+                skill_instance = new_skill_instance
 
-        return as_dict(skill_instance)
+            return as_dict(skill_instance)
+    except Exception as e:
+        # Return None if table doesn't exist (migration not applied)
+        if "relation" in str(e).lower() and "does not exist" in str(e).lower():
+            logger.warning(f"Skill instance table not found, skipping skill update: {e}")
+            return None
+        raise
 
 
 def query_skill_instances_by_agent_id(agent_id: int, tenant_id: str, version_no: int = 0):
     """Query all SkillInstance for an agent (regardless of enabled status)."""
-    with get_db_session() as session:
-        query = session.query(SkillInstance).filter(
-            SkillInstance.tenant_id == tenant_id,
-            SkillInstance.agent_id == agent_id,
-            SkillInstance.version_no == version_no,
-            SkillInstance.delete_flag != 'Y')
-        skill_instances = query.all()
-        return [as_dict(skill_instance) for skill_instance in skill_instances]
+    try:
+        with get_db_session() as session:
+            query = session.query(SkillInstance).filter(
+                SkillInstance.tenant_id == tenant_id,
+                SkillInstance.agent_id == agent_id,
+                SkillInstance.version_no == version_no,
+                SkillInstance.delete_flag != 'Y')
+            skill_instances = query.all()
+            return [as_dict(skill_instance) for skill_instance in skill_instances]
+    except Exception as e:
+        # Return empty list if table doesn't exist (migration not applied)
+        if "relation" in str(e).lower() and "does not exist" in str(e).lower():
+            return []
+        raise
 
 
 def query_enabled_skill_instances(agent_id: int, tenant_id: str, version_no: int = 0):

backend/services/a2a_client_service.py

@@ -420,11 +420,18 @@ def list_external_agents(
         Returns:
             List of agent information dicts.
         """
-        return a2a_agent_db.list_external_agents(
-            tenant_id=tenant_id,
-            source_type=source_type,
-            is_available=is_available
-        )
+        try:
+            return a2a_agent_db.list_external_agents(
+                tenant_id=tenant_id,
+                source_type=source_type,
+                is_available=is_available
+            )
+        except Exception as e:
+            # Return empty list if table doesn't exist (migration not applied)
+            if "relation" in str(e).lower() and "does not exist" in str(e).lower():
+                logger.warning(f"A2A external agents table not found, returning empty list: {e}")
+                return []
+            raise
 
     def update_agent_protocol(
         self,

backend/services/config_sync_service.py

@@ -96,8 +96,10 @@ async def save_config_impl(config, tenant_id, user_id):
             continue
 
         model_display_name = model_config.get("displayName")
-
         config_key = get_env_key(model_type) + "_ID"
+
+        logger.info(f"Saving model config: type={model_type}, key={config_key}, displayName={model_display_name}")
+
         model_id = get_model_id_by_display_name(
             model_display_name, tenant_id)
 
@@ -171,6 +173,7 @@ def build_models_config(tenant_id: str) -> dict:
         try:
             model_config = tenant_config_manager.get_model_config(
                 config_key, tenant_id=tenant_id)
+            logger.info(f"build_models_config: key={model_key}, config_key={config_key}, model_config={model_config}")
             models_config[model_key] = build_model_config(model_config)
         except Exception as e:
             logger.warning(f"Failed to get config for {config_key}: {e}")

backend/services/image_service.py

@@ -32,8 +32,15 @@ async def proxy_image_impl(decoded_url: str):
 
 def get_vlm_model(tenant_id: str):
     # Get the tenant config
+    # First try imageUnderstanding (newer name), then fallback to vlm (legacy name)
     vlm_model_config = tenant_config_manager.get_model_config(
-        key=MODEL_CONFIG_MAPPING["vlm"], tenant_id=tenant_id)
+        key=MODEL_CONFIG_MAPPING.get("imageUnderstanding", "IMAGE_UNDERSTANDING_ID"), tenant_id=tenant_id)
+
+    # If imageUnderstanding not found, try vlm (for backward compatibility)
+    if not vlm_model_config:
+        vlm_model_config = tenant_config_manager.get_model_config(
+            key=MODEL_CONFIG_MAPPING.get("vlm", "VLM_ID"), tenant_id=tenant_id)
+
     if not vlm_model_config:
         return None
     return OpenAIVLModel(