diff --git a/api/app/core/language_utils.py b/api/app/core/language_utils.py
index 5ed2b9ea..39a81636 100644
--- a/api/app/core/language_utils.py
+++ b/api/app/core/language_utils.py
@@ -46,6 +46,10 @@ def validate_language(language: Optional[str]) -> str:
     if language is None:
         return DEFAULT_LANGUAGE
     
+    # 处理枚举类型：优先取 .value，避免 str(Language.ZH) → "Language.ZH"
+    if hasattr(language, "value"):
+        language = language.value
+    
     # 标准化：转小写并去除空白
     lang = str(language).lower().strip()
     
diff --git a/api/app/core/logging_config.py b/api/app/core/logging_config.py
index d0dda84b..285342e3 100644
--- a/api/app/core/logging_config.py
+++ b/api/app/core/logging_config.py
@@ -130,6 +130,10 @@ class LoggingConfig:
         for neo4j_logger_name in ["neo4j", "neo4j.io", "neo4j.pool", "neo4j.notifications"]:
             neo4j_logger = logging.getLogger(neo4j_logger_name)
             neo4j_logger.addFilter(neo4j_filter)
+
+        # 压制 httpx / httpcore 的请求级日志（大量 HTTP Request: POST ... 噪音）
+        for noisy_logger in ["httpx", "httpcore", "httpcore.http11", "httpcore.connection"]:
+            logging.getLogger(noisy_logger).setLevel(logging.WARNING)
         
         # 创建格式化器
         formatter = logging.Formatter(
diff --git a/api/app/core/memory/agent/langgraph_graph/write_graph.py b/api/app/core/memory/agent/langgraph_graph/write_graph.py
index 32fc7d8a..a18b5c2a 100644
--- a/api/app/core/memory/agent/langgraph_graph/write_graph.py
+++ b/api/app/core/memory/agent/langgraph_graph/write_graph.py
@@ -40,8 +40,20 @@ async def long_term_storage(
     # 获取数据库会话
     with get_db_context() as db_session:
         config_service = MemoryConfigService(db_session)
+        # 通过 end_user_id 获取 workspace_id，确保日志和 fallback 逻辑完整
+        from app.services.memory_agent_service import get_end_user_connected_config
+        import uuid as _uuid
+        workspace_id = None
+        try:
+            connected = get_end_user_connected_config(end_user_id, db_session)
+            raw = connected.get("workspace_id")
+            if raw and raw != "None":
+                workspace_id = _uuid.UUID(str(raw))
+        except Exception:
+            pass
         memory_config = config_service.load_memory_config(
-            config_id=memory_config_id,  # 改为整数
+            config_id=memory_config_id,
+            workspace_id=workspace_id,
             service_name="MemoryAgentService"
         )
         if long_term_type == AgentMemory_Long_Term.STRATEGY_CHUNK:
diff --git a/api/app/core/memory/agent/services/parameter_builder.py b/api/app/core/memory/agent/services/parameter_builder.py
index 74382ade..adf41228 100644
--- a/api/app/core/memory/agent/services/parameter_builder.py
+++ b/api/app/core/memory/agent/services/parameter_builder.py
@@ -15,7 +15,7 @@ class ParameterBuilder:
     
     def __init__(self):
         """Initialize the parameter builder."""
-        logger.info("ParameterBuilder initialized")
+        logger.debug("ParameterBuilder initialized")
     
     def build_tool_args(
         self,
diff --git a/api/app/core/memory/agent/services/search_service.py b/api/app/core/memory/agent/services/search_service.py
index 93d1ebee..b9e9c748 100644
--- a/api/app/core/memory/agent/services/search_service.py
+++ b/api/app/core/memory/agent/services/search_service.py
@@ -86,7 +86,7 @@ class SearchService:
 
     def __init__(self):
         """Initialize the search service."""
-        logger.info("SearchService initialized")
+        logger.debug("SearchService initialized")
 
     def extract_content_from_result(self, result: dict, node_type: str = "") -> str:
         """
diff --git a/api/app/core/memory/agent/services/session_service.py b/api/app/core/memory/agent/services/session_service.py
index f7389984..f890f715 100644
--- a/api/app/core/memory/agent/services/session_service.py
+++ b/api/app/core/memory/agent/services/session_service.py
@@ -24,7 +24,7 @@ class SessionService:
             store: Redis session store instance
         """
         self.store = store
-        logger.info("SessionService initialized")
+        logger.debug("SessionService initialized")
     
     def resolve_user_id(self, session_string: str) -> str:
         """
diff --git a/api/app/core/memory/agent/services/template_service.py b/api/app/core/memory/agent/services/template_service.py
index 1bf86375..2fe93df0 100644
--- a/api/app/core/memory/agent/services/template_service.py
+++ b/api/app/core/memory/agent/services/template_service.py
@@ -51,7 +51,7 @@ class TemplateService:
             loader=FileSystemLoader(template_root),
             autoescape=False  # Disable autoescape for prompt templates
         )
-        logger.info(f"TemplateService initialized with root: {template_root}")
+        logger.debug(f"TemplateService initialized with root: {template_root}")
     
     @lru_cache(maxsize=128)
     def _load_template(self, template_name: str) -> Template:
diff --git a/api/app/core/memory/agent/utils/get_dialogs.py b/api/app/core/memory/agent/utils/get_dialogs.py
index 1180f367..24f0774f 100644
--- a/api/app/core/memory/agent/utils/get_dialogs.py
+++ b/api/app/core/memory/agent/utils/get_dialogs.py
@@ -10,6 +10,7 @@ async def get_chunked_dialogs(
         messages: list = None,
         ref_id: str = "",
         config_id: str = None,
+        workspace_id=None,
         snapshot=None,
 ) -> List[DialogData]:
     """Generate chunks from structured messages using the specified chunker strategy.
@@ -76,6 +77,7 @@ async def get_chunked_dialogs(
                     config_service = MemoryConfigService(db)
                     memory_config = config_service.load_memory_config(
                         config_id=config_id,
+                        workspace_id=workspace_id,
                         service_name="semantic_pruning"
                     )
                     
@@ -107,6 +109,13 @@ async def get_chunked_dialogs(
                                 remaining_msg_count = len(dialog_data.context.msgs)
                                 deleted_count = original_msg_count - remaining_msg_count
                                 logger.info(f"[剪枝] 完成: 原始{original_msg_count}条 -> 保留{remaining_msg_count}条 (删除{deleted_count}条)")
+                                
+                                # 将剪枝记录挂到 metadata，供 graph_build_step 构建节点
+                                if pruner.pruning_records:
+                                    dialog_data.metadata["assistant_pruning_records"] = [
+                                        r.model_dump() for r in pruner.pruning_records
+                                    ]
+                                    logger.info(f"[剪枝] 收集到 {len(pruner.pruning_records)} 条剪枝记录")
                             else:
                                 logger.warning("[剪枝] prune_dataset 返回空列表")
                         else:
diff --git a/api/app/core/memory/agent/utils/write_tools.py b/api/app/core/memory/agent/utils/write_tools.py
index d4eff79e..fd260130 100644
--- a/api/app/core/memory/agent/utils/write_tools.py
+++ b/api/app/core/memory/agent/utils/write_tools.py
@@ -389,7 +389,7 @@ async def write(
             workspace_id=str(memory_config.workspace_id),
             stats=stats_to_cache,
         )
-        logger.info(f"[WRITE] 活动统计已写入 Redis: workspace_id={memory_config.workspace_id}")
+        logger.info(f"[WRITE] 活动统计已写入 Redis: workspace_id = {memory_config.workspace_id}")
     except Exception as cache_err:
         logger.warning(f"[WRITE] 写入活动统计缓存失败（不影响主流程）: {cache_err}", exc_info=True)
 
diff --git a/api/app/core/memory/analytics/implicit_memory/llm_client.py b/api/app/core/memory/analytics/implicit_memory/llm_client.py
index f72e49ec..39bb2f69 100644
--- a/api/app/core/memory/analytics/implicit_memory/llm_client.py
+++ b/api/app/core/memory/analytics/implicit_memory/llm_client.py
@@ -64,7 +64,7 @@ class ImplicitMemoryLLMClient:
         self.default_model_id = default_model_id
         self._client_factory = MemoryClientFactory(db)
         
-        logger.info("ImplicitMemoryLLMClient initialized")
+        logger.debug("ImplicitMemoryLLMClient initialized")
 
     def _get_llm_client(self, model_id: Optional[str] = None):
         """Get LLM client instance.
diff --git a/api/app/core/memory/pipelines/write_pipeline.py b/api/app/core/memory/pipelines/write_pipeline.py
index a6927847..f2a55ae3 100644
--- a/api/app/core/memory/pipelines/write_pipeline.py
+++ b/api/app/core/memory/pipelines/write_pipeline.py
@@ -17,10 +17,11 @@ from __future__ import annotations
 
 import asyncio
 import logging
-import time
 import uuid
 from typing import TYPE_CHECKING, Any, Awaitable, Callable, Dict, List, Optional
 
+from app.core.memory.utils.log.bear_logger import BearLogger
+
 from pydantic import BaseModel, Field, ConfigDict
 
 if TYPE_CHECKING:
@@ -40,6 +41,7 @@ from app.core.memory.models.graph_models import (
 )
 
 logger = logging.getLogger(__name__)
+bear = BearLogger("memory.pipeline")
 
 
 # ──────────────────────────────────────────────
@@ -165,112 +167,82 @@ class WritePipeline:
             is_pilot_run: 试运行模式（只萃取不写入）
 
         Returns:
-            WriteResult 包含状态和统计信息 
+            WriteResult 包含状态和统计信息
         """
         if not ref_id:
             ref_id = uuid.uuid4().hex
 
         mode = "试运行" if is_pilot_run else "正式"
-        pipeline_start = time.time()
-
-        logger.info(
-            f"[WritePipeline] 开始 ({mode}) "
-            f"config={self.memory_config.config_name}, "
-            f"end_user={self.end_user_id}"
-        )
+        extraction_result = None
 
         try:
-            # 初始化客户端和连接
-            self._init_clients()
-            self._init_neo4j_connector()
+            async with bear.pipeline(
+                "WritePipeline",
+                mode=mode,
+                config_name=self.memory_config.config_name,
+                end_user_id=self.end_user_id,
+            ):
+                # 初始化客户端和连接
+                self._init_clients()
+                self._init_neo4j_connector()
 
-            # 初始化 Snapshot（提前创建，供预处理阶段的剪枝使用）
-            from app.core.memory.utils.debug.pipeline_snapshot import PipelineSnapshot
-            self._snapshot = PipelineSnapshot("new")
+                # 初始化 Snapshot（提前创建，供预处理阶段的剪枝使用）
+                from app.core.memory.utils.debug.pipeline_snapshot import PipelineSnapshot
+                self._snapshot = PipelineSnapshot("new")
 
-            # Step 1: 预处理 - 消息分块 + AI消息语义剪枝
-            step_start = time.time()
-            chunked_dialogs = await self._preprocess(messages, ref_id)
-            chunks_count = sum(len(d.chunks) for d in chunked_dialogs)
-            logger.info(
-                f"[WritePipeline] [1/5] 预处理：消息分块 "
-                f"✔ {time.time() - step_start:.2f}s  chunks={chunks_count}"
-            )
+                # Step 1: 预处理 - 消息分块 + AI消息语义剪枝
+                async with bear.step(1, 5, "预处理", "消息分块") as s:
+                    chunked_dialogs = await self._preprocess(messages, ref_id)
+                    s.metadata(chunks=sum(len(d.chunks) for d in chunked_dialogs))
 
-            # Step 2: 萃取 - 知识提取
-            step_start = time.time()
-            extraction_result = await self._extract(chunked_dialogs, is_pilot_run)
-            stats = extraction_result.stats
-            logger.info(
-                f"[WritePipeline] [2/5] 萃取：知识提取 "
-                f"✔ {time.time() - step_start:.2f}s  "
-                f"entities={stats['entity_count']}, "
-                f"statements={stats['statement_count']}, "
-                f"relations={stats['relation_count']}"
-            )
+                # Step 2: 萃取 - 知识提取
+                async with bear.step(2, 5, "萃取", "知识提取") as s:
+                    extraction_result = await self._extract(chunked_dialogs, is_pilot_run)
+                    stats = extraction_result.stats
+                    s.metadata(
+                        entities=stats["entity_count"],
+                        statements=stats["statement_count"],
+                        relations=stats["relation_count"],
+                    )
+
+                # 试运行模式到此结束
+                if is_pilot_run:
+                    return WriteResult(
+                        status="pilot_complete",
+                        extraction=extraction_result.stats,
+                        elapsed_seconds=0.0,
+                    )
+
+                # Step 3: 存储 - 写入 Neo4j
+                async with bear.step(3, 5, "存储", "写入 Neo4j"):
+                    await self._store(extraction_result)
+
+                # Step 3.2: 别名归并
+                async with bear.step(3, 5, "别名归并", "处理别名属于关系"):
+                    await self._merge_alias_belongs_to(extraction_result)
+
+                # Step 3.5: 异步情绪提取（fire-and-forget，需在 _store 之后确保 Statement 节点已存在）
+                await self._extract_emotion(getattr(self, "_emotion_statements", []))
+
+                # Step 4: 聚类 - 增量更新社区（异步，不阻塞）
+                async with bear.step(4, 5, "聚类", "增量更新社区") as s:
+                    await self._cluster(extraction_result)
+                    s.metadata(mode="async")
+
+                # Step 5: 摘要 - 生成情景记忆摘要
+                async with bear.step(5, 5, "摘要", "生成情景记忆"):
+                    await self._summarize(chunked_dialogs)
+
+                # 更新活动统计缓存
+                await self._update_stats_cache(extraction_result)
 
-            # 试运行模式到此结束
-            if is_pilot_run:
-                elapsed = time.time() - pipeline_start
-                logger.info(f"[WritePipeline] 完成（试运行） ✔ {elapsed:.2f}s")
                 return WriteResult(
-                    status="pilot_complete",
+                    status="success",
                     extraction=extraction_result.stats,
-                    elapsed_seconds=elapsed,
+                    elapsed_seconds=0.0,
                 )
 
-            # Step 3: 存储 - 写入 Neo4j
-            step_start = time.time()
-            await self._store(extraction_result)
-            logger.info(
-                f"[WritePipeline] [3/5] 存储：写入 Neo4j "
-                f"✔ {time.time() - step_start:.2f}s"
-            )
-
-            # Step 3.2: 别名归并 - 处理 predicate="别名属于" 的关系
-            step_start = time.time()
-            await self._merge_alias_belongs_to(extraction_result)
-            logger.info(
-                f"[WritePipeline] [3.2] 别名归并：处理别名属于关系 "
-                f"✔ {time.time() - step_start:.2f}s"
-            )
-
-            # Step 3.5: 异步情绪提取（fire-and-forget，需在 _store 之后确保 Statement 节点已存在）
-            await self._extract_emotion(getattr(self, "_emotion_statements", []))
-
-            # Step 4: 聚类 - 增量更新社区（异步，不阻塞）
-            step_start = time.time()
-            await self._cluster(extraction_result)
-            logger.info(
-                f"[WritePipeline] [4/5] 聚类：增量更新社区 "
-                f"✔ {time.time() - step_start:.2f}s  mode=async"
-            )
-
-            # Step 5: 摘要 - 生成情景记忆摘要
-            step_start = time.time()
-            await self._summarize(chunked_dialogs)
-            logger.info(
-                f"[WritePipeline] [5/5] 摘要：生成情景记忆 "
-                f"✔ {time.time() - step_start:.2f}s"
-            )
-
-            # 更新活动统计缓存
-            await self._update_stats_cache(extraction_result)
-
-            elapsed = time.time() - pipeline_start
-            logger.info(f"[WritePipeline] 完成 ✔ {elapsed:.2f}s")
-            return WriteResult(
-                status="success",
-                extraction=extraction_result.stats,
-                elapsed_seconds=elapsed,
-            )
-
-        except Exception as e:
-            elapsed = time.time() - pipeline_start
-            logger.error(
-                f"[WritePipeline] 失败 ✘ {elapsed:.2f}s  error={e}",
-                exc_info=True,
-            )
+        except Exception:
             raise
 
         finally:
@@ -300,6 +272,7 @@ class WritePipeline:
             messages=messages,
             ref_id=ref_id,
             config_id=str(self.memory_config.config_id),
+            workspace_id=self.memory_config.workspace_id,
             snapshot=snapshot,
         )
 
@@ -409,7 +382,7 @@ class WritePipeline:
                     ]
                 snapshot.save_stage("5_embedding_outputs", emb_data)
 
-        # step2: 构建图节点和边 
+        # step2: 构建图节点和边
         graph = await build_graph_nodes_and_edges(
             dialog_data_list=dialog_data_list,
             embedder_client=self._embedder_client,
@@ -445,7 +418,7 @@ class WritePipeline:
             },
         )
 
-        # step3: 两阶段去重消歧 
+        # step3: 两阶段去重消歧
         dedup_result = await run_dedup(
             entity_nodes=graph.entity_nodes,
             statement_entity_edges=graph.stmt_entity_edges,
@@ -482,7 +455,7 @@ class WritePipeline:
                 ],
             },
         )
-    
+
         # step4: 构造最终结果
         result = ExtractionResult(
             dialogue_nodes=graph.dialogue_nodes,
@@ -501,7 +474,7 @@ class WritePipeline:
             dialog_data_list=dialog_data_list,
         )
 
-        snapshot.save_summary(result.stats) #  TODO 乐力齐 snapshot需要改
+        snapshot.save_summary(result.stats)  #  TODO 乐力齐 snapshot需要改
         return result
 
     # ──────────────────────────────────────────────
@@ -545,7 +518,7 @@ class WritePipeline:
                     assistant_dialog_edges=result.assistant_dialog_edges,
                 )
                 if success:
-                    logger.info("Successfully saved all data to Neo4j")
+                    logger.debug("Successfully saved all data to Neo4j")
                     return
                 # 写入返回 False（部分失败）
                 if attempt < max_retries - 1:
@@ -584,7 +557,8 @@ class WritePipeline:
 
         # 筛选出所有 predicate="别名属于" 的边
         alias_edges = [
-            e for e in result.entity_entity_edges
+            e
+            for e in result.entity_entity_edges
             if getattr(e, "relation_type", "") == ALIAS_PREDICATE
             or getattr(e, "predicate", "") == ALIAS_PREDICATE
         ]
@@ -608,14 +582,18 @@ class WritePipeline:
                 if source_name:
                     existing_lower = {a.lower() for a in (target_node.aliases or [])}
                     if source_name.lower() not in existing_lower:
-                        target_node.aliases = list(target_node.aliases or []) + [source_name]
+                        target_node.aliases = list(target_node.aliases or []) + [
+                            source_name
+                        ]
 
                 # 将 source.description append 进 target.description（追加，分号分隔）
                 src_desc = (source_node.description or "").strip()
                 if src_desc:
                     tgt_desc = (target_node.description or "").strip()
                     if src_desc not in tgt_desc:
-                        target_node.description = f"{tgt_desc}；{src_desc}" if tgt_desc else src_desc
+                        target_node.description = (
+                            f"{tgt_desc}；{src_desc}" if tgt_desc else src_desc
+                        )
 
             logger.info(
                 f"[AliasMerge] 内存同步完成，处理 {len(alias_edges)} 条 '别名属于' 边"
@@ -627,12 +605,12 @@ class WritePipeline:
                 end_user_id=self.end_user_id,
             )
             merged_count = len(records) if records else 0
-            logger.info(
-                f"[AliasMerge] Neo4j 别名归并完成，影响 {merged_count} 条记录"
-            )
+            logger.info(f"[AliasMerge] Neo4j 别名归并完成，影响 {merged_count} 条记录")
 
         except Exception as e:
-            logger.warning(f"[AliasMerge] 别名归并失败（不影响主流程）: {e}", exc_info=True)
+            logger.warning(
+                f"[AliasMerge] 别名归并失败（不影响主流程）: {e}", exc_info=True
+            )
 
     # ──────────────────────────────────────────────
     # Step 4: 聚类
@@ -675,8 +653,8 @@ class WritePipeline:
             )
             logger.info(
                 f"[Clustering] 增量聚类任务已提交 - "
-                f"task_id={task.id}, "
-                f"entity_count={len(new_entity_ids)}, "
+                f"task_id = {task.id}, "
+                f"entity_count = {len(new_entity_ids)}, "
                 f"source=dedup"
             )
         except Exception as e:
@@ -734,9 +712,9 @@ class WritePipeline:
             )
             logger.info(
                 f"[Emotion] 异步情绪提取任务已提交 - "
-                f"task_id={result.id}, "
-                f"statement_count={len(emotion_statements)}, "
-                f"snapshot_dir={snapshot_dir}, "
+                f"task_id = {result.id}, "
+                f"statement_count = {len(emotion_statements)}, "
+                f"snapshot_dir = {snapshot_dir}, "
                 f"source=async"
             )
         except Exception as e:
@@ -749,7 +727,7 @@ class WritePipeline:
     # Step 5: 摘要
     # （+ entity_description）+ meta_data部分在此提取
     # ──────────────────────────────────────────────
-# TODO 乐力齐 需要做成异步celery任务
+    # TODO 乐力齐 需要做成异步celery任务
     async def _summarize(self, chunked_dialogs: List[DialogData]) -> None:
         """
         摘要：生成情景记忆摘要 → 写入 Neo4j。
@@ -877,8 +855,7 @@ class WritePipeline:
                 external_assistant_aliases=neo4j_assistant_aliases,
             )
             logger.info(
-                f"别名清洗完成，AI助手别名排除集大小: "
-                f"{len(neo4j_assistant_aliases)}"
+                f"别名清洗完成，AI助手别名排除集大小: {len(neo4j_assistant_aliases)}"
             )
         except Exception as e:
             logger.warning(f"别名清洗失败（不影响主流程）: {e}")
@@ -911,8 +888,7 @@ class WritePipeline:
                 stats=stats,
             )
             logger.info(
-                f"活动统计已写入 Redis: "
-                f"workspace_id={self.memory_config.workspace_id}"
+                f"活动统计已写入 Redis: workspace_id={self.memory_config.workspace_id}"
             )
         except Exception as e:
             logger.warning(f"写入活动统计缓存失败（不影响主流程）: {e}")
diff --git a/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py b/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py
index 049c265f..4c3be0c6 100644
--- a/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py
+++ b/api/app/core/memory/storage_services/extraction_engine/extraction_orchestrator.py
@@ -1303,6 +1303,7 @@ class ExtractionOrchestrator:
 
                             # 只有当两个实体ID都存在时才创建边
                             if subject_entity_id and object_entity_id:
+                                _tv = getattr(statement, "temporal_validity", None)
                                 entity_entity_edge = EntityEntityEdge(
                                     source=subject_entity_id,
                                     target=object_entity_id,
@@ -1314,6 +1315,8 @@ class ExtractionOrchestrator:
                                     run_id=dialog_data.run_id,  # 使用 dialog_data 的 run_id
                                     created_at=dialog_data.created_at,
                                     expired_at=dialog_data.expired_at,
+                                    valid_at=_tv.valid_at if _tv else None,
+                                    invalid_at=_tv.invalid_at if _tv else None,
                                 )
                                 entity_entity_edges.append(entity_entity_edge)
 
diff --git a/api/app/core/memory/storage_services/extraction_engine/extraction_pipeline_orchestrator.py b/api/app/core/memory/storage_services/extraction_engine/extraction_pipeline_orchestrator.py
index 5c158083..16082804 100644
--- a/api/app/core/memory/storage_services/extraction_engine/extraction_pipeline_orchestrator.py
+++ b/api/app/core/memory/storage_services/extraction_engine/extraction_pipeline_orchestrator.py
@@ -105,7 +105,7 @@ class NewExtractionOrchestrator:
             SidecarTiming.AFTER_TRIPLET
         ]
 
-        logger.info(
+        logger.debug(
             "NewExtractionOrchestrator initialised — "
             "after_statement sidecars: %d, after_triplet sidecars: %d",
             len(self.after_statement_sidecars),
@@ -274,11 +274,11 @@ class NewExtractionOrchestrator:
     ) -> List[DialogData]:
         """Pilot mode: statement + triplet extraction only, no sidecars or embeddings."""
         # Phase 1: Statement extraction (chunk-level parallel)
-        logger.info("Pilot phase 1/2: Statement extraction")
+        logger.debug("Pilot phase 1/2: Statement extraction")
         all_stmt_results = await self._extract_all_statements(dialog_data_list)
 
         # Phase 2: Triplet extraction (statement-level parallel)
-        logger.info("Pilot phase 2/2: Triplet extraction")
+        logger.debug("Pilot phase 2/2: Triplet extraction")
         all_triplet_results = await self._extract_all_triplets(
             dialog_data_list, all_stmt_results
         )
@@ -327,7 +327,7 @@ class NewExtractionOrchestrator:
                 },
             )
 
-        logger.info("Pilot extraction complete")
+        logger.debug("Pilot extraction complete")
         return dialog_data_list
 
     # ── 3b. 正式模式：四阶段并发执行 ──
@@ -338,7 +338,7 @@ class NewExtractionOrchestrator:
         """Full mode: all four phases with concurrent sidecars and embeddings."""
 
         # ── Phase 1: Statement extraction + chunk/dialog embedding ──
-        logger.info("Phase 1/4: Statement extraction + chunk/dialog embedding")
+        logger.debug("Phase 1/4: Statement extraction + chunk/dialog embedding")
         chunk_dialog_emb_input = self._build_chunk_dialog_embedding_input(
             dialog_data_list
         )
@@ -367,7 +367,7 @@ class NewExtractionOrchestrator:
             logger.warning("Chunk/dialog embedding failed: %s", phase1_results[1])
 
         # ── Phase 2: Triplet extraction + after_statement sidecars + statement embedding ──
-        logger.info(
+        logger.debug(
             "Phase 2/4: Triplet extraction + sidecars + statement embedding"
         )
         stmt_emb_input = self._build_statement_embedding_input(
@@ -403,7 +403,7 @@ class NewExtractionOrchestrator:
         )
 
         # ── Phase 3: Entity embedding + after_triplet sidecars ──
-        logger.info("Phase 3/4: Entity embedding + after_triplet sidecars")
+        logger.debug("Phase 3/4: Entity embedding + after_triplet sidecars")
         entity_emb_input = self._build_entity_embedding_input(all_triplet_results)
 
         after_triplet_pairs: List[Tuple[ExtractionStep, Any]] = []
@@ -430,7 +430,7 @@ class NewExtractionOrchestrator:
         merged_emb = self._merge_embeddings(chunk_dialog_emb, stmt_emb, entity_emb)
 
         # ── Phase 4: Data assignment ──
-        logger.info("Phase 4/4: Data assignment")
+        logger.debug("Phase 4/4: Data assignment")
 
         self._assign_results(
             dialog_data_list,
@@ -453,7 +453,7 @@ class NewExtractionOrchestrator:
             "embedding_output": merged_emb,
         }
 
-        logger.info("Full extraction pipeline complete")
+        logger.debug("Full extraction pipeline complete")
         return dialog_data_list
 
     @property
diff --git a/api/app/core/memory/storage_services/extraction_engine/knowledge_extraction/chunk_extraction.py b/api/app/core/memory/storage_services/extraction_engine/knowledge_extraction/chunk_extraction.py
index bbbf1c51..55316950 100644
--- a/api/app/core/memory/storage_services/extraction_engine/knowledge_extraction/chunk_extraction.py
+++ b/api/app/core/memory/storage_services/extraction_engine/knowledge_extraction/chunk_extraction.py
@@ -53,7 +53,7 @@ class DialogueChunker:
             )
         
         self.chunker_strategy = chunker_strategy
-        logger.info(f"Initializing DialogueChunker with strategy: {chunker_strategy}")
+        logger.debug(f"Initializing DialogueChunker with strategy: {chunker_strategy}")
         
         try:
             # Load and validate configuration
@@ -71,7 +71,7 @@ class DialogueChunker:
             else:
                 self.chunker_client = ChunkerClient(self.chunker_config)
             
-            logger.info(f"DialogueChunker initialized successfully with strategy: {chunker_strategy}")
+            logger.debug(f"DialogueChunker initialized successfully with strategy: {chunker_strategy}")
             
         except Exception as e:
             logger.error(f"Failed to initialize DialogueChunker: {e}", exc_info=True)
@@ -101,7 +101,7 @@ class DialogueChunker:
                 f"Messages: {len(dialogue.context.msgs) if dialogue.context else 0}"
             )
         
-        logger.info(
+        logger.debug(
             f"Processing dialogue {dialogue.ref_id} with {len(dialogue.context.msgs)} messages "
             f"using strategy: {self.chunker_strategy}"
         )
@@ -121,7 +121,7 @@ class DialogueChunker:
                 )
 
             logger.info(
-                f"Successfully generated {len(chunks)} chunks for dialogue {dialogue.ref_id}. "
+                f"Successfully generated {len(chunks)} chunks for dialogue_id: {dialogue.ref_id}. "
                 f"Total characters processed: {len(dialogue.content) if dialogue.content else 0}"
             )
             
diff --git a/api/app/core/memory/utils/log/audit_logger.py b/api/app/core/memory/utils/log/audit_logger.py
index f80ad4d5..4afac614 100644
--- a/api/app/core/memory/utils/log/audit_logger.py
+++ b/api/app/core/memory/utils/log/audit_logger.py
@@ -142,7 +142,7 @@ class ConfigAuditLogger:
         result = "SUCCESS" if success else "FAILED"
         msg = (
             f"{operation.upper()} config_id={config_id} "
-            f"group={end_user_id} result={result}"
+            f"end_user_id={end_user_id} result={result}"
         )
         if duration is not None:
             msg += f" duration={duration:.2f}s"
diff --git a/api/app/core/memory/utils/prompt/prompts/extract_triplet.jinja2 b/api/app/core/memory/utils/prompt/prompts/extract_triplet.jinja2
index fa868104..421b7381 100644
--- a/api/app/core/memory/utils/prompt/prompts/extract_triplet.jinja2
+++ b/api/app/core/memory/utils/prompt/prompts/extract_triplet.jinja2
@@ -12,6 +12,7 @@ Extract entities and knowledge triplets from the given statement.
 - 命名关系中新出现的称呼、别名、昵称、产品名保持原样，不做替换。
 - `description` 使用中文。
 - `type`、`predicate`、`type_description`、`predicate_description` 一律使用中文。
+- 每个 `triplet` 都必须携带 `valid_at` 和 `invalid_at`，并直接复制输入中的同名字段，不要自行改写或推断新的时间边界。
   {% else %}
   Important:
 - Keep `name`, `subject_name`, and `object_name` in their original surface form from the source text by default.
@@ -22,6 +23,7 @@ Extract entities and knowledge triplets from the given statement.
 - Newly introduced names in naming or alias expressions must stay in their original form.
 - Generate `description` in English.
 - Always generate `type`, `predicate`, `type_description`, and `predicate_description` in Chinese.
+- Every `triplet` MUST include `valid_at` and `invalid_at`, copied directly from the input fields with the same names; do not rewrite or infer new temporal bounds.
   {% endif %}
 
 ===Inputs===
@@ -110,7 +112,8 @@ Primary statement to analyze:
 - 不要从 `supporting_context.msgs` 中单独抽取实体或关系。
 - 如果某条信息只出现在 `supporting_context.msgs` 中，而没有出现在 `statement_text` 中，就不要输出它。
 - 如果 `supporting_context.msgs` 中的 Assistant 消息包含总结、猜测、解释或改写，这些内容只能作为理解辅助，不能直接作为抽取来源。
-- `statement_type`、`temporal_type`、`valid_at`、`invalid_at` 是辅助理解字段，不是抽取目标。
+- `statement_type`、`temporal_type` 是辅助理解字段，不是抽取目标。
+- `valid_at`、`invalid_at` 不用于决定是否创建实体或关系，但如果产生 triplet，必须原样复制到每个 triplet 的同名字段中。
 - 对 `statement_text` 中的用户自指表达，要统一规范成实体 `用户`。
 - 对其他可稳定解析的代词或指示表达，要替换为具体指代实体名后再抽取。
 - 对命名关系中新出现的称呼、别名、昵称、产品名，不要因为上下文可推断其所指而直接改写，它们应保持原样作为实体名。
@@ -120,7 +123,8 @@ Primary statement to analyze:
 - Do not extract any standalone entity or relation from `supporting_context.msgs`.
 - If some information appears only in `supporting_context.msgs` but not in `statement_text`, do not include it in the output.
 - If Assistant messages in `supporting_context.msgs` contain summary, guess, interpretation, or rephrasing, use them only as interpretive support and never as a direct extraction source.
-- Treat `statement_type`, `temporal_type`, `valid_at`, and `invalid_at` as auxiliary context, not extraction targets.
+- Treat `statement_type` and `temporal_type` as auxiliary context, not extraction targets.
+- Do not use `valid_at` or `invalid_at` to decide whether to create entities or relations, but if any triplet is produced, copy them verbatim into every triplet field with the same names.
 - Normalize user self-reference in `statement_text` to the entity `用户`.
 - Replace other resolvable pronouns or demonstratives with their resolved entity names before extraction.
 - For newly introduced names in naming or alias expressions, do not rewrite them even if the context reveals who they refer to; keep them as entity names.
@@ -229,7 +233,7 @@ Primary statement to analyze:
 
 - unresolved 或边界不稳的表达，不因“看起来像名词”就创建实体。
 - 情绪、心理状态、金额、数量、普通时间、一次性动作短语，默认不作为独立实体类型抽取。
-- 抽象命题片段、泛化结果、价值判断，默认不创建实体；如有保留价值，应写入相关高价值实体的 `description`。
+- 抽象命题片段、泛化结果、价值判断，默认不创建实体；如有保留价值且适合作为实体的稳定描述，可写入相关高价值实体的 `description`。
 
 实体类型选择原则：
 
@@ -445,9 +449,9 @@ Do not let auxiliary fields drive the extraction process.
 - 不要为了表达一句带时间或地点的行动，而额外创造“任务”“计划”“事件”实体。
 - 但如果动作明确把主体和某个稳定实体连接起来，可以保留该稳定实体，并抽取轻关系。例如“我去图书馆”“我去公司开会”“我去上课”“我去看演唱会”可以抽取 `前往`。
 - 当句子只是在讨论一般道理、抽象规律、空泛结果或非个体化概念，而这些概念本身不构成可复用记忆时，不要创建实体。
-- 如果句子表达的是用户的观点、信念、判断、愿望或目标倾向，但其中抽象对象不值得作为独立实体保留，则只保留相关高价值实体，不要再创建这些低价值对象实体，并把未抽取的抽象内容压缩写入相关实体的 `description`；例如“用户认为努力就会有回报”应只保留 `用户`，并在 `description` 中体现“用户认为努力就会有回报”。
-- 对于未抽取的抽象实体、抽象命题片段或泛化结果，只要它们对理解该高价值实体有帮助，就应优先写入该实体的 `description`，而不是改用宽泛关系或补造弱实体。
-- 当前阶段同样不要把情绪或心理状态抽成实体；如果句子里出现“紧张”“开心”“难过”“焦虑”“放松”等，应写入相关高价值实体的 `description`，而不是把它们标成 `知识能力`、`偏好习惯目标` 或其他近似类型。
+- 如果句子表达的是用户的观点、信念、判断、愿望或目标倾向，但其中抽象对象不值得作为独立实体保留，则只保留相关高价值实体，不要再创建这些低价值对象实体；只有当未抽取内容适合作为该实体的稳定描述时，才写入相关实体的 `description`。例如“用户认为努力就会有回报”可只保留 `用户`，并在 `description` 中体现这一较稳定认知倾向。
+- 对于未抽取的抽象实体、抽象命题片段或泛化结果，不要默认全部写入 `description`；只有当它们适合作为该实体的稳定描述、且对后续区分或理解该实体有帮助时，才写入 `description`。
+- 当前阶段同样不要把情绪或心理状态抽成实体；如果句子里出现“紧张”“开心”“难过”“焦虑”“放松”等，只有在它们能被稳定概括为较持久的认知或态度时，才可间接体现在相关高价值实体的 `description` 中；短期情绪状态本身不要写入 `description`。
 - 如果陈述里有值得保留的实体信息，但没有有效关系，可以只返回 `entities`，并把 `triplets` 设为 `[]`。
 - `name` 默认保持原文中的表面形式，但用户自指必须写成 `用户`，可稳定解析的其他代词必须替换为具体指代实体名。
 - `description` 必须使用中文。
@@ -461,9 +465,9 @@ Do not let auxiliary fields drive the extraction process.
 - Do not create extra "task", "plan", or "event" entities just to represent an action with time or location modifiers.
 - But if an action clearly connects the subject to a stable entity, keep that stable entity and use a light relation. For example, statements like "I go to the library", "I go to the office", "I go to class", or "I go to a concert" can use `前往`.
 - If the sentence is only about a generic principle, abstract outcome, or non-personalized concept that is not worth remembering on its own, do not create an entity for it.
-- If a statement expresses the user's belief, judgment, opinion, wish, or goal tendency but the referenced abstract concepts are not worth keeping as standalone entities, keep only the relevant high-value entities, do not create those low-value concept entities, and compress the unextracted abstract content into the relevant entity `description`. For example, "the user believes effort brings reward" should keep only `用户` and reflect that belief in `description`.
-- For abstract entities, proposition fragments, or generic outcomes that are not extracted, prefer writing them into the relevant retained entity's `description` when they help preserve the memory, instead of switching to a broad relation or inventing a weak entity.
-- In the current stage, do not extract emotional or psychological states as entities. States such as nervousness, happiness, sadness, anxiety, or relief should be written into the relevant retained entity's `description` rather than mapped to `知识能力`, `偏好习惯目标`, or any other approximate type.
+- If a statement expresses the user's belief, judgment, opinion, wish, or goal tendency but the referenced abstract concepts are not worth keeping as standalone entities, keep only the relevant high-value entities and do not create those low-value concept entities; write the unextracted content into an entity `description` only when it is suitable as a stable description of that entity. For example, "the user believes effort brings reward" may keep only `用户` and reflect that relatively stable belief in `description`.
+- For abstract entities, proposition fragments, or generic outcomes that are not extracted, do not automatically write them into `description`; only do so when they are suitable as a stable description of the retained entity and help identify or understand it.
+- In the current stage, do not extract emotional or psychological states as entities. States such as nervousness, happiness, sadness, anxiety, or relief should not be mapped to `知识能力`, `偏好习惯目标`, or any other approximate type, and short-lived emotional states should not be written into `description`.
 - If the statement contains entity-worthy content but no valid relation, it is acceptable to return `entities` with `triplets: []`.
 - Keep `name` in its original surface form by default, but write user self-reference as `用户` and replace other stably resolvable references with their resolved entity names.
 - `description` must be in English.
@@ -487,11 +491,17 @@ Do not let auxiliary fields drive the extraction process.
 
 - `description` 应短、直白、与当前上下文相关，并能帮助区分实体。
 - 优先描述实体在当前陈述和必要上下文中的身份、作用或关系。
+- `description` 只保留适合长期附着在该实体上的描述，例如稳定身份、稳定关系、长期偏好/兴趣/习惯、较稳定认知倾向或可用于区分实体的持久特征。
+- 不要把短期状态、一次性事件、临时计划、当前情绪、具体时间锚点，或只在当前句子里短暂成立的信息写进 `description`。
+- 如果实体应保留，但当前 statement 中没有适合长期附着在该实体上的稳定描述，则 `description` 允许为空字符串 `""`；不要为了填充 `description` 而写入短期状态或临时信息。
 - 避免使用“陈述中提到的人物”“陈述中提到的组织”“陈述中提到的物品”这类低信息量模板。
 - 不要补充识别实体所不需要的外部知识。
   {% else %}
 - `description` should be short, context-grounded, and discriminative.
 - Prefer describing the entity's role, identity, or relation in the current statement and necessary supporting context.
+- `description` should keep only information suitable to remain attached to the entity over time, such as stable identity, stable relations, long-term preferences/interests/habits, relatively stable beliefs, or persistent distinguishing traits.
+- Do not put short-lived states, one-off events, temporary plans, current emotions, concrete time anchors, or information that only briefly holds in the current sentence into `description`.
+- If an entity should be retained but the current statement does not provide any suitable stable description for it, `description` may be the empty string `""`; do not fill it with short-lived states or temporary information just to avoid emptiness.
 - Avoid low-information templates such as "the person mentioned in the statement" or "the organization mentioned in the statement".
 - Do not add extra world knowledge that is not needed for identifying the entity in context.
   {% endif %}
@@ -518,6 +528,7 @@ Do not let auxiliary fields drive the extraction process.
 - 如果 `has_unsolved_reference` 是 `true`，不要抽取实体或 triplets。
 - `subject_name` 和 `object_name` 默认保持原文中的表面形式，但用户自指必须写成 `用户`，可稳定解析的其他代词必须替换为具体指代实体名。
 - `predicate_description` 必须直接复用对应 `predicate` 的中文定义。
+- 每个 triplet 都必须包含 `valid_at` 和 `invalid_at`，并直接复用输入中的同名字段值；如果输入是 `NULL`，这里也写 `NULL`。
 - 不要把普通时间表达作为 triplet 的宾语。
 - 不要为了表达一次性计划、安排、日程而强行构造关系。
 - 当句子表达主体去某个地点、场所、组织、课程或活动时，只要该对象本身有记忆价值，就可以抽取 `前往`，即使句中同时带有时间信息。
@@ -537,6 +548,7 @@ Do not let auxiliary fields drive the extraction process.
 - If `has_unsolved_reference` is `true`, do not extract entities or triplets.
 - Keep `subject_name` and `object_name` in their original surface form by default, but write user self-reference as `用户` and replace other stably resolvable references with their resolved entity names.
 - `predicate_description` must directly reuse the corresponding Chinese definition of `predicate`.
+- Every triplet must include `valid_at` and `invalid_at`, copied directly from the input fields with the same names; if the input is `NULL`, write `NULL` here as well.
 - Do not use ordinary time expressions as triplet objects.
 - Do not force relations just to encode one-off plans, schedules, or actions.
 - When the statement says that the subject goes to a place, venue, organization, class, or activity, you may extract `前往` as long as that destination itself is worth remembering, even if the statement also includes time information.
@@ -589,10 +601,14 @@ Do not let auxiliary fields drive the extraction process.
 
 - 每个 triplet 中的 `subject_name` 必须与 `subject_id` 指向实体的 `name` 完全一致。
 - 每个 triplet 中的 `object_name` 必须与 `object_id` 指向实体的 `name` 完全一致。
+- 每个 triplet 中的 `valid_at` 必须与输入中的 `valid_at` 完全一致。
+- 每个 triplet 中的 `invalid_at` 必须与输入中的 `invalid_at` 完全一致。
 - 不要在 triplet 里使用与实体名不同的表面形式。
   {% else %}
 - `subject_name` in each triplet MUST exactly match the `name` of the entity referenced by `subject_id`.
 - `object_name` in each triplet MUST exactly match the `name` of the entity referenced by `object_id`.
+- `valid_at` in each triplet MUST exactly match the input `valid_at`.
+- `invalid_at` in each triplet MUST exactly match the input `invalid_at`.
 - Do not use alternative surface forms inside triplets.
   {% endif %}
 
@@ -603,7 +619,7 @@ Statement: "我住在巴黎。"
 Output:
 {
   "triplets": [
-    {"subject_name": "用户", "subject_id": 0, "predicate": "居住于", "predicate_description": "人物居住在某地点", "object_name": "巴黎", "object_id": 1}
+    {"subject_name": "用户", "subject_id": 0, "predicate": "居住于", "predicate_description": "人物居住在某地点", "object_name": "巴黎", "object_id": 1, "valid_at": "NULL", "invalid_at": "NULL"}
   ],
   "entities": [
     {"entity_idx": 0, "name": "用户", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "居住在巴黎的说话者", "is_explicit_memory": false},
@@ -618,7 +634,7 @@ Input condition: supporting context has already made it clear that “他” ref
 Output:
 {
   "triplets": [
-    {"subject_name": "张明", "subject_id": 0, "predicate": "任职于", "predicate_description": "主体在某组织中工作或任职", "object_name": "腾讯", "object_id": 1}
+    {"subject_name": "张明", "subject_id": 0, "predicate": "任职于", "predicate_description": "主体在某组织中工作或任职", "object_name": "腾讯", "object_id": 1, "valid_at": "NULL", "invalid_at": "NULL"}
   ],
   "entities": [
     {"entity_idx": 0, "name": "张明", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "在腾讯工作的人员", "is_explicit_memory": false},
@@ -632,11 +648,11 @@ Statement: "我常去图书馆学微积分。"
 Output:
 {
   "triplets": [
-    {"subject_name": "用户", "subject_id": 0, "predicate": "前往", "predicate_description": "主体前往某个地点、场所、组织、课程或活动", "object_name": "图书馆", "object_id": 1},
-    {"subject_name": "用户", "subject_id": 0, "predicate": "学习", "predicate_description": "主体正在学习某知识主题或技能", "object_name": "微积分", "object_id": 2}
+    {"subject_name": "用户", "subject_id": 0, "predicate": "前往", "predicate_description": "主体前往某个地点、场所、组织、课程或活动", "object_name": "图书馆", "object_id": 1, "valid_at": "NULL", "invalid_at": "NULL"},
+    {"subject_name": "用户", "subject_id": 0, "predicate": "学习", "predicate_description": "主体正在学习某知识主题或技能", "object_name": "微积分", "object_id": 2, "valid_at": "NULL", "invalid_at": "NULL"}
   ],
   "entities": [
-    {"entity_idx": 0, "name": "用户", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "经常去图书馆学习微积分的说话者", "is_explicit_memory": false},
+    {"entity_idx": 0, "name": "用户", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "经常在图书馆学习微积分的说话者", "is_explicit_memory": false},
     {"entity_idx": 1, "name": "图书馆", "type": "地点设施", "type_description": "具有地理意义或功能性空间意义的位置与场所。", "description": "用户经常前往学习的地点", "is_explicit_memory": false},
     {"entity_idx": 2, "name": "微积分", "type": "知识能力", "type_description": "可学习、掌握、使用或讨论的知识主题、技能、学科或语言。", "description": "用户经常学习的主题", "is_explicit_memory": true}
   ]
@@ -658,8 +674,8 @@ Statement: "我的朋友都叫我山哥。"
 Output:
 {
   "triplets": [
-    {"subject_name": "山哥", "subject_id": 2, "predicate": "别名属于", "predicate_description": "别名指向其对应的规范实体", "object_name": "用户", "object_id": 0},
-    {"subject_name": "我的朋友", "subject_id": 1, "predicate": "使用称呼", "predicate_description": "主体使用某个名字来称呼另一实体", "object_name": "山哥", "object_id": 2}
+    {"subject_name": "山哥", "subject_id": 2, "predicate": "别名属于", "predicate_description": "别名指向其对应的规范实体", "object_name": "用户", "object_id": 0, "valid_at": "NULL", "invalid_at": "NULL"},
+    {"subject_name": "我的朋友", "subject_id": 1, "predicate": "使用称呼", "predicate_description": "主体使用某个名字来称呼另一实体", "object_name": "山哥", "object_id": 2, "valid_at": "NULL", "invalid_at": "NULL"}
   ],
   "entities": [
     {"entity_idx": 0, "name": "用户", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "被朋友称作山哥的说话者", "is_explicit_memory": false},
@@ -697,7 +713,7 @@ Output:
 {
   "triplets": [],
   "entities": [
-    {"entity_idx": 0, "name": "用户", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "最近有些紧张并认为这很正常的说话者", "is_explicit_memory": false}
+    {"entity_idx": 0, "name": "用户", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "", "is_explicit_memory": false}
   ]
 }
 
@@ -707,7 +723,7 @@ Statement: "王教授是导师。"
 Output:
 {
   "triplets": [
-    {"subject_name": "王教授", "subject_id": 0, "predicate": "担任角色", "predicate_description": "主体承担某个角色", "object_name": "导师", "object_id": 1}
+    {"subject_name": "王教授", "subject_id": 0, "predicate": "担任角色", "predicate_description": "主体承担某个角色", "object_name": "导师", "object_id": 1, "valid_at": "NULL", "invalid_at": "NULL"}
   ],
   "entities": [
     {"entity_idx": 0, "name": "王教授", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "承担导师角色的具体个人", "is_explicit_memory": false},
@@ -721,8 +737,8 @@ Statement: "我的GitHub账号用户名是chen4。"
 Output:
 {
   "triplets": [
-    {"subject_name": "用户", "subject_id": 0, "predicate": "拥有账号", "predicate_description": "实体具有某账号", "object_name": "GitHub账号", "object_id": 1},
-    {"subject_name": "GitHub账号", "subject_id": 1, "predicate": "标识为", "predicate_description": "实体由某标识符标识", "object_name": "chen4", "object_id": 2}
+    {"subject_name": "用户", "subject_id": 0, "predicate": "拥有账号", "predicate_description": "实体具有某账号", "object_name": "GitHub账号", "object_id": 1, "valid_at": "NULL", "invalid_at": "NULL"},
+    {"subject_name": "GitHub账号", "subject_id": 1, "predicate": "标识为", "predicate_description": "实体由某标识符标识", "object_name": "chen4", "object_id": 2, "valid_at": "NULL", "invalid_at": "NULL"}
   ],
   "entities": [
     {"entity_idx": 0, "name": "用户", "type": "人物", "type_description": "可稳定指向、可被当作具体个体区分和归并的个人实体。", "description": "拥有该 GitHub 账号的说话者", "is_explicit_memory": false},
@@ -737,7 +753,7 @@ Statement: "机器人查票员和我沟通。"
 Output:
 {
   "triplets": [
-    {"subject_name": "机器人查票员", "subject_id": 0, "predicate": "沟通于", "predicate_description": "两个实体之间发生沟通或交流", "object_name": "用户", "object_id": 1}
+    {"subject_name": "机器人查票员", "subject_id": 0, "predicate": "沟通于", "predicate_description": "两个实体之间发生沟通或交流", "object_name": "用户", "object_id": 1, "valid_at": "NULL", "invalid_at": "NULL"}
   ],
   "entities": [
     {"entity_idx": 0, "name": "机器人查票员", "type": "智能体", "type_description": "具有行动、交互或执行能力的非人主体，如机器人、AI 或其他智慧体。", "description": "与用户发生沟通的机器人主体", "is_explicit_memory": false},
@@ -757,6 +773,7 @@ JSON 要求：
 - `name`、`subject_name`、`object_name` 默认保持原文中的表面形式，但用户自指必须规范成 `用户`，可稳定解析的其他代词必须替换为具体指代实体名
 - `description` 必须使用中文
 - `type`、`predicate`、`type_description`、`predicate_description` 必须使用上方预定义的中文标签和中文说明
+- 每个 triplet 都必须包含 `valid_at` 和 `invalid_at`，并与输入中的同名字段完全一致
 - 如果 `has_unsolved_reference` 是 `true`，输出必须是 `{"entities": [], "triplets": []}`
 - 如果存在无法稳定解析的代词或指示表达，输出也必须是 `{"entities": [], "triplets": []}`
 - 如果没有有效 triplet，返回 `"triplets": []`
@@ -769,6 +786,7 @@ JSON 要求：
 - `name`, `subject_name`, and `object_name` keep their original surface forms by default, but user self-reference must be normalized to `用户` and other stably resolvable references must be replaced by their resolved entity names
 - `description` must be in English
 - `type`, `predicate`, `type_description`, and `predicate_description` must use the predefined Chinese labels and Chinese definitions above
+- Every triplet must include `valid_at` and `invalid_at`, exactly matching the input fields with the same names
 - If `has_unsolved_reference` is `true`, the output must be `{"entities": [], "triplets": []}`
 - If unresolved references still remain, the output must also be `{"entities": [], "triplets": []}`
 - If no valid triplet exists, return `"triplets": []`
@@ -799,7 +817,9 @@ Output JSON structure:
       "predicate": "string",
       "predicate_description": "string",
       "object_name": "string",
-      "object_id": 0
+      "object_id": 0,
+      "valid_at": "ISO 8601 | NULL",
+      "invalid_at": "ISO 8601 | NULL"
     }
   ]
 }
diff --git a/api/app/core/sensitive_filter.py b/api/app/core/sensitive_filter.py
index 9348325d..c469f75b 100644
--- a/api/app/core/sensitive_filter.py
+++ b/api/app/core/sensitive_filter.py
@@ -57,10 +57,8 @@ class SensitiveDataFilter:
         (re.compile(r'\beyJ[A-Za-z0-9_-]+\.eyJ[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+'), "[TOKEN]"),
         # JWT Token 部分匹配（只有header和payload，没有signature）
         (re.compile(r'\beyJ[A-Za-z0-9_-]+\.[A-Za-z0-9_-]+(?:\.[A-Za-z0-9_-]*)?'), "[TOKEN]"),
-        # UUID格式的token或ID
-        (re.compile(r'\b[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\b', re.IGNORECASE), "[UUID]"),
-        # API密钥格式（32位以上的字母数字组合）
-        (re.compile(r'\b[A-Za-z0-9]{32,}\b'), "[API_KEY]"),
+        # API密钥格式（64位以上的字母数字组合，避免误过滤普通业务字段）
+        (re.compile(r'\b[A-Za-z0-9]{64,}\b'), "[API_KEY]"),
     ]
     
     # 替换文本
diff --git a/api/app/repositories/neo4j/cypher_queries.py b/api/app/repositories/neo4j/cypher_queries.py
index 03d7ed7a..64ee5e24 100644
--- a/api/app/repositories/neo4j/cypher_queries.py
+++ b/api/app/repositories/neo4j/cypher_queries.py
@@ -33,8 +33,8 @@ SET s += {
     temporal_info: statement.temporal_info,
     created_at: statement.created_at,
     expired_at: statement.expired_at,
-    valid_at: statement.valid_at,
-    invalid_at: statement.invalid_at,
+    valid_at: coalesce(statement.valid_at, ""),
+    invalid_at: coalesce(statement.invalid_at, ""),
     statement_embedding: statement.statement_embedding,
     relevence_info: statement.relevence_info,
     importance_score: statement.importance_score,
@@ -152,8 +152,8 @@ SET r.predicate = rel.predicate,
     r.statement_id = rel.statement_id,
     r.value = rel.value,
     r.statement = rel.statement,
-    r.valid_at = rel.valid_at,
-    r.invalid_at = rel.invalid_at,
+    r.valid_at = coalesce(rel.valid_at, ""),
+    r.invalid_at = coalesce(rel.invalid_at, ""),
     r.created_at = rel.created_at,
     r.expired_at = rel.expired_at,
     r.run_id = rel.run_id,
diff --git a/api/app/repositories/neo4j/graph_saver.py b/api/app/repositories/neo4j/graph_saver.py
index 6109f189..a317e299 100644
--- a/api/app/repositories/neo4j/graph_saver.py
+++ b/api/app/repositories/neo4j/graph_saver.py
@@ -260,7 +260,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(DIALOGUE_NODE_SAVE, dialogues=dialogue_data)
             dialogue_uuids = [record["uuid"] async for record in result]
             results['dialogues'] = dialogue_uuids
-            logger.info(f"Dialogues saved to Neo4j with UUIDs: {dialogue_uuids}")
+            logger.debug(f"Dialogues saved to Neo4j with UUIDs: {dialogue_uuids}")
 
         # 2. Save all chunk nodes in batch
         if chunk_nodes:
@@ -269,7 +269,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(CHUNK_NODE_SAVE, chunks=chunk_data)
             chunk_uuids = [record["uuid"] async for record in result]
             results['chunks'] = chunk_uuids
-            logger.info(f"Successfully saved {len(chunk_uuids)} chunk nodes to Neo4j")
+            logger.debug(f"Successfully saved {len(chunk_uuids)} chunk nodes to Neo4j")
 
         if perceptual_nodes:
             from app.repositories.neo4j.cypher_queries import PERCEPTUAL_NODE_SAVE
@@ -277,7 +277,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(PERCEPTUAL_NODE_SAVE, perceptuals=perceptual_data)
             perceptual_uuids = [record["uuid"] async for record in result]
             results["perceptuals"] = perceptual_uuids
-            logger.info(f"Successfully saved {len(perceptual_uuids)} perceptual nodes to Neo4j")
+            logger.debug(f"Successfully saved {len(perceptual_uuids)} perceptual nodes to Neo4j")
 
         # 3. Save all statement nodes in batch
         if statement_nodes:
@@ -286,7 +286,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(STATEMENT_NODE_SAVE, statements=statement_data)
             statement_uuids = [record["uuid"] async for record in result]
             results['statements'] = statement_uuids
-            logger.info(f"Successfully saved {len(statement_uuids)} statement nodes to Neo4j")
+            logger.debug(f"Successfully saved {len(statement_uuids)} statement nodes to Neo4j")
 
         # 4. Save entities
         if entity_nodes:
@@ -295,7 +295,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(EXTRACTED_ENTITY_NODE_SAVE, entities=entity_data)
             entity_uuids = [record["uuid"] async for record in result]
             results['entities'] = entity_uuids
-            logger.info(f"Successfully saved {len(entity_uuids)} entity nodes to Neo4j")
+            logger.debug(f"Successfully saved {len(entity_uuids)} entity nodes to Neo4j")
 
         # 5. Create entity relationships
         if entity_edges:
@@ -320,7 +320,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(ENTITY_RELATIONSHIP_SAVE, relationships=relationship_data)
             rel_uuids = [record["uuid"] async for record in result]
             results['entity_relationships'] = rel_uuids
-            logger.info(f"Successfully saved {len(rel_uuids)} entity relationships to Neo4j")
+            logger.debug(f"Successfully saved {len(rel_uuids)} entity relationships to Neo4j")
 
         # 6. Save statement-chunk edges
         if statement_chunk_edges:
@@ -339,7 +339,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(CHUNK_STATEMENT_EDGE_SAVE, chunk_statement_edges=sc_edge_data)
             sc_uuids = [record["uuid"] async for record in result]
             results['statement_chunk_edges'] = sc_uuids
-            logger.info(f"Successfully saved {len(sc_uuids)} statement-chunk edges to Neo4j")
+            logger.debug(f"Successfully saved {len(sc_uuids)} statement-chunk edges to Neo4j")
 
         # 7. Save statement-entity edges
         if statement_entity_edges:
@@ -358,7 +358,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(STATEMENT_ENTITY_EDGE_SAVE, relationships=se_edge_data)
             se_uuids = [record["uuid"] async for record in result]
             results['statement_entity_edges'] = se_uuids
-            logger.info(f"Successfully saved {len(se_uuids)} statement-entity edges to Neo4j")
+            logger.debug(f"Successfully saved {len(se_uuids)} statement-entity edges to Neo4j")
 
         if perceptual_edges:
             from app.repositories.neo4j.cypher_queries import PERCEPTUAL_CHUNK_EDGE_SAVE
@@ -374,7 +374,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(PERCEPTUAL_CHUNK_EDGE_SAVE, edges=perceptual_edge_data)
             perceptual_edges_uuids = [record["uuid"] async for record in result]
             results['perceptual_chunk_edges'] = perceptual_edges_uuids
-            logger.info(f"Successfully saved {len(perceptual_edges_uuids)} perceptual-chunk edges to Neo4j")
+            logger.debug(f"Successfully saved {len(perceptual_edges_uuids)} perceptual-chunk edges to Neo4j")
 
         # 8. Save assistant original nodes
         if assistant_original_nodes:
@@ -383,7 +383,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(ASSISTANT_ORIGINAL_NODE_SAVE, originals=original_data)
             original_uuids = [record["uuid"] async for record in result]
             results['assistant_originals'] = original_uuids
-            logger.info(f"Successfully saved {len(original_uuids)} assistant original nodes to Neo4j")
+            logger.debug(f"Successfully saved {len(original_uuids)} assistant original nodes to Neo4j")
 
         # 9. Save assistant pruned nodes
         if assistant_pruned_nodes:
@@ -392,7 +392,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(ASSISTANT_PRUNED_NODE_SAVE, pruneds=pruned_data)
             pruned_uuids = [record["uuid"] async for record in result]
             results['assistant_pruneds'] = pruned_uuids
-            logger.info(f"Successfully saved {len(pruned_uuids)} assistant pruned nodes to Neo4j")
+            logger.debug(f"Successfully saved {len(pruned_uuids)} assistant pruned nodes to Neo4j")
 
         # 10. Save PRUNED_TO edges (Original → Pruned)
         if assistant_pruned_edges:
@@ -408,7 +408,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(ASSISTANT_PRUNED_EDGE_SAVE, edges=edge_data)
             pruned_edge_uuids = [record["uuid"] async for record in result]
             results['assistant_pruned_edges'] = pruned_edge_uuids
-            logger.info(f"Successfully saved {len(pruned_edge_uuids)} PRUNED_TO edges to Neo4j")
+            logger.debug(f"Successfully saved {len(pruned_edge_uuids)} PRUNED_TO edges to Neo4j")
 
         # 11. Save BELONGS_TO_DIALOG edges (Original → Dialogue)
         if assistant_dialog_edges:
@@ -423,7 +423,7 @@ async def save_dialog_and_statements_to_neo4j(
             result = await tx.run(ASSISTANT_DIALOG_EDGE_SAVE, edges=edge_data)
             dialog_edge_uuids = [record["uuid"] async for record in result]
             results['assistant_dialog_edges'] = dialog_edge_uuids
-            logger.info(f"Successfully saved {len(dialog_edge_uuids)} BELONGS_TO_DIALOG edges to Neo4j")
+            logger.debug(f"Successfully saved {len(dialog_edge_uuids)} BELONGS_TO_DIALOG edges to Neo4j")
 
         return results
 
diff --git a/api/app/repositories/ontology_class_repository.py b/api/app/repositories/ontology_class_repository.py
index 5be81ff7..444717ce 100644
--- a/api/app/repositories/ontology_class_repository.py
+++ b/api/app/repositories/ontology_class_repository.py
@@ -227,7 +227,7 @@ class OntologyClassRepository:
             ).all()
             
             logger.info(
-                f"Found {len(classes)} ontology classes in scene {scene_id}"
+                f"Found {len(classes)} ontology classes in scene_id: {scene_id}"
             )
             
             return classes
diff --git a/api/app/services/memory_agent_service.py b/api/app/services/memory_agent_service.py
index ca207933..797a3aef 100644
--- a/api/app/services/memory_agent_service.py
+++ b/api/app/services/memory_agent_service.py
@@ -64,7 +64,7 @@ class MemoryAgentService:
     def writer_messages_deal(self, messages, start_time, end_user_id, config_id, message, context):
         duration = time.time() - start_time
         if str(messages) == 'success':
-            logger.info(f"Write operation successful for group {end_user_id} with config_id {config_id}")
+            logger.info(f"Write operation successful for end_id: {end_user_id} with config_id： {config_id}")
             # 记录成功的操作
             audit_logger.log_operation(operation="WRITE", config_id=config_id, end_user_id=end_user_id,
                                        success=True,
@@ -360,10 +360,21 @@ class MemoryAgentService:
         workspace_id = None
         try:
             connected_config = get_end_user_connected_config(end_user_id, db)
-            workspace_id = connected_config.get("workspace_id")
+            # get_end_user_connected_config 返回字符串，需转为 UUID
+            workspace_id_raw = connected_config.get("workspace_id")
+            if workspace_id_raw and workspace_id_raw != "None":
+                try:
+                    workspace_id = uuid.UUID(str(workspace_id_raw))
+                except (ValueError, AttributeError):
+                    workspace_id = None
             if config_id is None:
-                config_id = connected_config.get("memory_config_id")
-            logger.info(f"Resolved config from end_user: config_id={config_id}, workspace_id={workspace_id}")
+                config_id_raw = connected_config.get("memory_config_id")
+                if config_id_raw and config_id_raw != "None":
+                    try:
+                        config_id = uuid.UUID(str(config_id_raw))
+                    except (ValueError, AttributeError):
+                        config_id = None
+            logger.info(f"Resolved config from end_user: config_id = {config_id}, workspace_id = {workspace_id}")
             if config_id is None and workspace_id is None:
                 raise ValueError(
                     f"No memory configuration found for end_user {end_user_id}. "
@@ -517,7 +528,7 @@ class MemoryAgentService:
             workspace_id = connected_config.get("workspace_id")
             if config_id is None:
                 config_id = connected_config.get("memory_config_id")
-            logger.info(f"Resolved config from end_user: config_id={config_id}, workspace_id={workspace_id}")
+            logger.info(f"Resolved config from end_user: config_id = {config_id}, workspace_id = {workspace_id}")
             if config_id is None and workspace_id is None:
                 raise ValueError(
                     f"No memory configuration found for end_user {end_user_id}. Please ensure the user has a connected memory configuration.")
@@ -529,7 +540,7 @@ class MemoryAgentService:
                 raise ValueError(f"Unable to determine memory configuration for end_user {end_user_id}: {e}")
             # If config_id was provided, continue without workspace_id fallback
 
-        logger.info(f"Read operation for group {end_user_id} with config_id {config_id}")
+        logger.info(f"Read operation for end_user_id: {end_user_id} with config_id: {config_id}")
 
         config_load_start = time.time()
         try:
@@ -840,16 +851,16 @@ class MemoryAgentService:
             workspace_id = connected_config.get('workspace_id')
             if config_id is None:
                 config_id = connected_config.get('memory_config_id')
-            logger.info(f"Resolved config from end_user: config_id={config_id}, workspace_id={workspace_id}")
+            logger.info(f"Resolved config from end_user: config_id = {config_id}, workspace_id = {workspace_id}")
             if config_id is None and workspace_id is None:
                 raise ValueError(
-                    f"No memory configuration found for end_user {end_user_id}. Please ensure the user has a connected memory configuration.")
+                    f"No memory configuration found for end_user_id {end_user_id}. Please ensure the user has a connected memory configuration.")
         except Exception as e:
             if "No memory configuration found" in str(e):
                 raise  # Re-raise our specific error
-            logger.error(f"Failed to get connected config for end_user {end_user_id}: {e}")
+            logger.error(f"Failed to get connected config for end_user_id {end_user_id}: {e}")
             if config_id is None:
-                raise ValueError(f"Unable to determine memory configuration for end_user {end_user_id}: {e}")
+                raise ValueError(f"Unable to determine memory configuration for end_user_id {end_user_id}: {e}")
             # If config_id was provided, continue without workspace_id fallback
 
         logger.info(f"Generating summary from retrieve info for query: {query[:50]}...")
@@ -1250,7 +1261,7 @@ def get_end_user_connected_config(end_user_id: str, db: Session) -> Dict[str, An
     from app.models.end_user_model import EndUser
     from app.services.memory_config_service import MemoryConfigService
 
-    logger.info(f"Getting connected config for end_user: {end_user_id}")
+    logger.info(f"Getting connected config for end_user_id: {end_user_id}")
 
     # TODO: check sources for enduserid, should be one of these three: chat, draft, apikey
     # 1. 获取 end_user 及其 app_id
@@ -1351,7 +1362,7 @@ def get_end_user_connected_config(end_user_id: str, db: Session) -> Dict[str, An
     }
 
     logger.info(
-        f"Successfully retrieved connected config: memory_config_id={memory_config_id}, workspace_id={end_user.workspace_id}")
+        f"Successfully retrieved connected config: memory_config_id = {memory_config_id}, workspace_id = {end_user.workspace_id}")
     return result
 
 
diff --git a/api/app/tasks.py b/api/app/tasks.py
index f697b5f3..6b1b6ae2 100644
--- a/api/app/tasks.py
+++ b/api/app/tasks.py
@@ -1279,7 +1279,7 @@ def write_message_task(
         with get_db_context() as db:
             logger.info(
                 f"[CELERY WRITE] Executing MemoryAgentService.write_memory "
-                f"with config_id={actual_config_id} (type: {type(actual_config_id).__name__}), language={language}")
+                f"with config_id = {actual_config_id} (type: {type(actual_config_id).__name__}), language={language}")
             service = MemoryAgentService()
             result = await service.write_memory(
                 WriteMemoryRequest(