diff --git a/README.md b/README.md
index 05a7c29d..c360da7d 100644
--- a/README.md
+++ b/README.md
@@ -140,6 +140,7 @@ async def main():
         default_as_llm_config={"model_name": "qwen3.5-35b-a3b"},
         # default_embedding_model_config={"model_name": "text-embedding-v4"},
         default_file_store_config={"fts_enabled": True, "vector_enabled": False},
+        enable_load_env=True,
     )
     await reme.start()
 
diff --git a/README_ZH.md b/README_ZH.md
index 45c1b277..7c3da21f 100644
--- a/README_ZH.md
+++ b/README_ZH.md
@@ -133,6 +133,7 @@ async def main():
         default_as_llm_config={"model_name": "qwen3.5-35b-a3b"},
         # default_embedding_model_config={"model_name": "text-embedding-v4"},
         default_file_store_config={"fts_enabled": True, "vector_enabled": False},
+        enable_load_env=True,
     )
     await reme.start()
 
diff --git a/reme/__init__.py b/reme/__init__.py
index 74463d84..97905514 100644
--- a/reme/__init__.py
+++ b/reme/__init__.py
@@ -6,7 +6,7 @@ from . import extension
 from . import memory
 from .reme import ReMe
 
-__version__ = "0.3.0.8"
+__version__ = "0.3.1.1"
 
 __all__ = [
     "config",
diff --git a/reme/core/application.py b/reme/core/application.py
index 8778dfba..6f04e663 100644
--- a/reme/core/application.py
+++ b/reme/core/application.py
@@ -12,10 +12,19 @@ from .flow import BaseFlow
 from .llm import BaseLLM
 from .prompt_handler import PromptHandler
 from .registry_factory import R
-from .schema import Response, ServiceConfig
+from .schema import (
+    EmbeddingModelConfig,
+    Response,
+    ServiceConfig,
+    LLMConfig,
+    VectorStoreConfig,
+    FileStoreConfig,
+    FileWatcherConfig,
+    TokenCounterConfig,
+)
 from .service_context import ServiceContext
 from .token_counter import BaseTokenCounter
-from .utils import execute_stream_task, PydanticConfigParser, init_logger, MCPClient, print_logo, get_logger
+from .utils import execute_stream_task, PydanticConfigParser, init_logger, MCPClient, print_logo, get_logger, load_env
 from .vector_store import BaseVectorStore
 
 logger = get_logger()
@@ -35,6 +44,7 @@ class Application:
         config_path: str | None = None,
         enable_logo: bool = True,
         log_to_console: bool = True,
+        enable_load_env: bool = True,
         parser: type[PydanticConfigParser] | None = None,
         default_as_llm_config: dict | None = None,
         default_as_llm_formatter_config: dict | None = None,
@@ -46,12 +56,17 @@ class Application:
         default_file_watcher_config: dict | None = None,
         **kwargs,
     ):
+
+        if enable_load_env:
+            load_env()
+
+        self.llm_api_key = llm_api_key or os.getenv("LLM_API_KEY", "")
+        self.llm_base_url = llm_base_url or os.getenv("LLM_BASE_URL", "")
+        self.embedding_api_key = embedding_api_key or os.getenv("EMBEDDING_API_KEY", "")
+        self.embedding_base_url = embedding_base_url or os.getenv("EMBEDDING_BASE_URL", "")
+
         self.service_context = ServiceContext(
             *args,
-            llm_api_key=llm_api_key,
-            llm_base_url=llm_base_url,
-            embedding_api_key=embedding_api_key,
-            embedding_base_url=embedding_base_url,
             service_config=None,
             parser=parser,
             working_dir=working_dir,
@@ -158,11 +173,11 @@ class Application:
             else:
                 config_dict = config.model_dump(exclude={"backend"})
                 if not config_dict.get("api_key", ""):
-                    config_dict["api_key"] = os.getenv("LLM_API_KEY", "")
+                    config_dict["api_key"] = self.llm_api_key
                 if "client_kwargs" not in config_dict:
                     config_dict["client_kwargs"] = {}
                 if not config_dict["client_kwargs"].get("base_url", ""):
-                    config_dict["client_kwargs"]["base_url"] = os.getenv("LLM_BASE_URL", "")
+                    config_dict["client_kwargs"]["base_url"] = self.llm_base_url
                 self.service_context.as_llms[name] = R.as_llms[config.backend](**config_dict)
 
         for name, config in self.service_config.as_llm_formatters.items():
@@ -184,6 +199,8 @@ class Application:
                 logger.warning(f"LLM backend {config.backend} is not supported.")
             else:
                 config_dict = config.model_dump(exclude={"backend"})
+                config_dict.setdefault("api_key", self.llm_api_key)
+                config_dict.setdefault("base_url", self.llm_base_url)
                 self.service_context.llms[name] = R.llms[config.backend](**config_dict)
                 await self.service_context.llms[name].start()
 
@@ -192,7 +209,9 @@ class Application:
                 logger.warning(f"Embedding model backend {config.backend} is not supported.")
             else:
                 config_dict = config.model_dump(exclude={"backend"})
-                config_dict["cache_dir"] = working_path / "embedding_cache"
+                config_dict.setdefault("api_key", self.embedding_api_key)
+                config_dict.setdefault("base_url", self.embedding_base_url)
+                config_dict.setdefault("cache_dir", working_path / "embedding_cache")
                 self.service_context.embedding_models[name] = R.embedding_models[config.backend](**config_dict)
                 await self.service_context.embedding_models[name].start()
 
@@ -247,6 +266,209 @@ class Application:
         logger.info("ReMe Application started")
         return self
 
+    # pylint: disable=too-many-statements
+    async def restart(self, restart_config: dict):
+        """Restart the application with new config."""
+
+        working_path = Path(self.service_config.working_dir)
+        working_path.mkdir(parents=True, exist_ok=True)
+
+        # as_llms
+        if "as_llms" in restart_config:
+            as_llms_config = restart_config["as_llms"]
+            assert isinstance(as_llms_config, dict)
+            for name, config in as_llms_config.items():
+                if name in self.service_context.as_llms:
+                    del self.service_context.as_llms[name]
+
+                if config.get("backend") not in R.as_llms:
+                    logger.warning(f"AS LLM backend {config.get('backend')} is not supported.")
+                    continue
+
+                config_dict = {k: v for k, v in config.items() if k != "backend"}
+                if not config_dict.get("api_key", ""):
+                    config_dict["api_key"] = self.llm_api_key
+                if "client_kwargs" not in config_dict:
+                    config_dict["client_kwargs"] = {}
+                if not config_dict["client_kwargs"].get("base_url", ""):
+                    config_dict["client_kwargs"]["base_url"] = self.llm_base_url
+                self.service_context.as_llms[name] = R.as_llms[config["backend"]](**config_dict)
+                logger.info(f"Restarted AS LLM: {name}")
+
+        # as_llm_formatters
+        if "as_llm_formatters" in restart_config:
+            as_llm_formatters_config = restart_config["as_llm_formatters"]
+            assert isinstance(as_llm_formatters_config, dict)
+            for name, config in as_llm_formatters_config.items():
+                if name in self.service_context.as_llm_formatters:
+                    del self.service_context.as_llm_formatters[name]
+
+                if config.get("backend") not in R.as_llm_formatters:
+                    logger.warning(f"AS LLM formatter backend {config.get('backend')} is not supported.")
+                    continue
+                config_dict = {k: v for k, v in config.items() if k != "backend"}
+                self.service_context.as_llm_formatters[name] = R.as_llm_formatters[config["backend"]](**config_dict)
+                logger.info(f"Restarted AS LLM formatter: {name}")
+
+        # as_token_counters
+        if "as_token_counters" in restart_config:
+            as_token_counters_config = restart_config["as_token_counters"]
+            assert isinstance(as_token_counters_config, dict)
+            for name, config in as_token_counters_config.items():
+                if name in self.service_context.as_token_counters:
+                    del self.service_context.as_token_counters[name]
+
+                if config.get("backend") not in R.as_token_counters:
+                    logger.warning(f"Token counter backend {config.get('backend')} is not supported.")
+                    continue
+                config_dict = {k: v for k, v in config.items() if k != "backend"}
+                self.service_context.as_token_counters[name] = R.as_token_counters[config["backend"]](**config_dict)
+                logger.info(f"Restarted AS token counter: {name}")
+
+        # llms
+        if "llms" in restart_config:
+            llms_config = restart_config["llms"]
+            assert isinstance(llms_config, dict)
+            for name, config in llms_config.items():
+                if name in self.service_context.llms:
+                    llm = self.service_context.llms.pop(name)
+                    await llm.close()
+
+                if isinstance(config, dict):
+                    config = LLMConfig(**config)
+                if config.backend not in R.llms:
+                    logger.warning(f"LLM backend {config.backend} is not supported.")
+                    continue
+                config_dict = config.model_dump(exclude={"backend"})
+                config_dict.setdefault("api_key", self.llm_api_key)
+                config_dict.setdefault("base_url", self.llm_base_url)
+                self.service_context.llms[name] = R.llms[config.backend](**config_dict)
+                await self.service_context.llms[name].start()
+                logger.info(f"Restarted LLM: {name}")
+
+        # embedding_models
+        if "embedding_models" in restart_config:
+            embedding_models_config = restart_config["embedding_models"]
+            assert isinstance(embedding_models_config, dict)
+            updated_names = set()
+            for name, config in embedding_models_config.items():
+                if name in self.service_context.embedding_models:
+                    embedding_model = self.service_context.embedding_models.pop(name)
+                    await embedding_model.close()
+
+                if isinstance(config, dict):
+                    config = EmbeddingModelConfig(**config)
+                if config.backend not in R.embedding_models:
+                    logger.warning(f"Embedding model backend {config.backend} is not supported.")
+                    continue
+                config_dict = config.model_dump(exclude={"backend"})
+                config_dict.setdefault("api_key", self.embedding_api_key)
+                config_dict.setdefault("base_url", self.embedding_base_url)
+                config_dict.setdefault("cache_dir", working_path / "embedding_cache")
+                self.service_context.embedding_models[name] = R.embedding_models[config.backend](**config_dict)
+                await self.service_context.embedding_models[name].start()
+                logger.info(f"Restarted embedding model: {name}")
+                updated_names.add(name)
+
+            # update embedding_model attribute for existing vector_stores and file_stores
+            for name in updated_names:
+                for vs_name, vs_config in self.service_config.vector_stores.items():
+                    if vs_config.embedding_model == name and vs_name in self.service_context.vector_stores:
+                        self.service_context.vector_stores[vs_name].embedding_model = (
+                            self.service_context.embedding_models[name]
+                        )
+                        logger.info(f"Updated embedding model for vector store: {vs_name}")
+                for fs_name, fs_config in self.service_config.file_stores.items():
+                    if fs_config.embedding_model == name and fs_name in self.service_context.file_stores:
+                        self.service_context.file_stores[fs_name].embedding_model = (
+                            self.service_context.embedding_models[name]
+                        )
+                        logger.info(f"Updated embedding model for file store: {fs_name}")
+
+        # token_counters
+        if "token_counters" in restart_config:
+            token_counters_config = restart_config["token_counters"]
+            assert isinstance(token_counters_config, dict)
+            for name, config in token_counters_config.items():
+                if name in self.service_context.token_counters:
+                    del self.service_context.token_counters[name]
+
+                if isinstance(config, dict):
+                    config = TokenCounterConfig(**config)
+                if config.backend not in R.token_counters:
+                    logger.warning(f"Token counter backend {config.backend} is not supported.")
+                    continue
+                config_dict = config.model_dump(exclude={"backend"})
+                self.service_context.token_counters[name] = R.token_counters[config.backend](**config_dict)
+                logger.info(f"Restarted token counter: {name}")
+
+        # vector_stores
+        if "vector_stores" in restart_config:
+            vector_stores_config = restart_config["vector_stores"]
+            assert isinstance(vector_stores_config, dict)
+            for name, config in vector_stores_config.items():
+                if name in self.service_context.vector_stores:
+                    vector_store = self.service_context.vector_stores.pop(name)
+                    await vector_store.close()
+                if isinstance(config, dict):
+                    config = VectorStoreConfig(**config)
+                if config.backend not in R.vector_stores:
+                    logger.warning(f"Vector store backend {config.backend} is not supported.")
+                    continue
+                config_dict = config.model_dump(exclude={"backend", "embedding_model"})
+                config_dict.update(
+                    {
+                        "embedding_model": self.service_context.embedding_models[config.embedding_model],
+                        "db_path": working_path / "vector_store",
+                    },
+                )
+                self.service_context.vector_stores[name] = R.vector_stores[config.backend](**config_dict)
+                await self.service_context.vector_stores[name].start()
+                logger.info(f"Restarted vector store: {name}")
+
+        # file_stores
+        if "file_stores" in restart_config:
+            file_stores_config = restart_config["file_stores"]
+            assert isinstance(file_stores_config, dict)
+            for name, config in file_stores_config.items():
+                if name in self.service_context.file_stores:
+                    file_store = self.service_context.file_stores.pop(name)
+                    await file_store.close()
+                if isinstance(config, dict):
+                    config = FileStoreConfig(**config)
+                if config.backend not in R.file_stores:
+                    logger.warning(f"File store backend {config.backend} is not supported.")
+                    continue
+                config_dict = config.model_dump(exclude={"backend", "embedding_model"})
+                config_dict.update(
+                    {
+                        "embedding_model": self.service_context.embedding_models[config.embedding_model],
+                        "db_path": working_path / "file_store",
+                    },
+                )
+                self.service_context.file_stores[name] = R.file_stores[config.backend](**config_dict)
+                await self.service_context.file_stores[name].start()
+                logger.info(f"Restarted file store: {name}")
+
+        # file_watchers
+        if "file_watchers" in restart_config:
+            file_watchers_config = restart_config["file_watchers"]
+            assert isinstance(file_watchers_config, dict)
+            for name, config in file_watchers_config.items():
+                if name in self.service_context.file_watchers:
+                    file_watcher = self.service_context.file_watchers.pop(name)
+                    await file_watcher.close()
+                if isinstance(config, dict):
+                    config = FileWatcherConfig(**config)
+                if config.backend not in R.file_watchers:
+                    logger.warning(f"File watcher backend {config.backend} is not supported.")
+                    continue
+                config_dict = config.model_dump(exclude={"backend", "file_store"})
+                config_dict["file_store"] = self.service_context.file_stores[config.file_store]
+                self.service_context.file_watchers[name] = R.file_watchers[config.backend](**config_dict)
+                await self.service_context.file_watchers[name].start()
+                logger.info(f"Restarted file watcher: {name}")
+
     async def prepare_mcp_servers(self):
         """Prepare and initialize MCP server connections."""
         mcp_client = MCPClient(config={"mcpServers": self.service_config.mcp_servers})
diff --git a/reme/core/as_token_counter/reme_token_counter.py b/reme/core/as_token_counter/reme_token_counter.py
index 39ad8f6d..6722e92f 100644
--- a/reme/core/as_token_counter/reme_token_counter.py
+++ b/reme/core/as_token_counter/reme_token_counter.py
@@ -47,9 +47,18 @@ class ReMeTokenCounter(HuggingFaceTokenCounter):
 
         # Set HuggingFace endpoint for mirror support
         if use_mirror:
-            os.environ["HF_ENDPOINT"] = "https://hf-mirror.com"
+            mirror = "https://hf-mirror.com"
         else:
-            os.environ.pop("HF_ENDPOINT", None)
+            mirror = "https://huggingface.co"
+
+        os.environ["HF_ENDPOINT"] = mirror
+
+        # if the huggingface is already imported in other dependencies,
+        # we need to set the endpoint manually
+        import huggingface_hub.constants
+
+        huggingface_hub.constants.ENDPOINT = mirror
+        huggingface_hub.constants.HUGGINGFACE_CO_URL_TEMPLATE = mirror + "/{repo_id}/resolve/{revision}/{filename}"
 
         try:
             super().__init__(
diff --git a/reme/core/embedding/base_embedding_model.py b/reme/core/embedding/base_embedding_model.py
index 2b60e8e6..28efddce 100644
--- a/reme/core/embedding/base_embedding_model.py
+++ b/reme/core/embedding/base_embedding_model.py
@@ -6,7 +6,6 @@ Defines the abstract base class and standard API for all embedding model impleme
 import asyncio
 import hashlib
 import json
-import os
 import time
 from abc import ABC
 from collections import OrderedDict
@@ -56,8 +55,8 @@ class BaseEmbeddingModel(ABC):
             enable_cache: Whether to enable embedding cache
             **kwargs: Additional model-specific parameters
         """
-        self._api_key: str = api_key
-        self._base_url: str = base_url
+        self.api_key: str = api_key
+        self.base_url: str = base_url
         self.model_name = model_name
         self.dimensions = dimensions
         self.use_dimensions = use_dimensions
@@ -78,16 +77,6 @@ class BaseEmbeddingModel(ABC):
         self.cache_path: Path = Path(self.cache_dir)
         self.cache_path.mkdir(parents=True, exist_ok=True)
 
-    @property
-    def api_key(self) -> str | None:
-        """Get API key from environment variable."""
-        return os.getenv("EMBEDDING_API_KEY") or self._api_key
-
-    @property
-    def base_url(self) -> str | None:
-        """Get base URL from environment variable."""
-        return os.getenv("EMBEDDING_BASE_URL") or self._base_url
-
     def _truncate_text(self, text: str) -> str:
         """Truncate text to max_input_length if it exceeds the limit."""
         if len(text) > self.max_input_length:
diff --git a/reme/core/embedding/openai_embedding_model.py b/reme/core/embedding/openai_embedding_model.py
index 3857f782..d686c83c 100644
--- a/reme/core/embedding/openai_embedding_model.py
+++ b/reme/core/embedding/openai_embedding_model.py
@@ -45,7 +45,9 @@ class OpenAIEmbeddingModel(BaseEmbeddingModel):
 
         result_emb = [[] for _ in range(len(input_text))]
         for emb in completion.data:
-            result_emb[emb.index] = emb.embedding
+            # BGE-M3 returns dense_embedding instead of embedding; use as fallback
+            vec = getattr(emb, "embedding", None) or getattr(emb, "dense_embedding", None)
+            result_emb[emb.index] = list(vec) if vec is not None else []
         return result_emb
 
     async def start(self):
diff --git a/reme/core/llm/base_llm.py b/reme/core/llm/base_llm.py
index ba13ff10..c08a423c 100644
--- a/reme/core/llm/base_llm.py
+++ b/reme/core/llm/base_llm.py
@@ -2,7 +2,6 @@
 
 import asyncio
 import json
-import os
 import time
 from abc import ABC, abstractmethod
 from typing import Callable, Generator, AsyncGenerator, Any
@@ -36,8 +35,8 @@ class BaseLLM(ABC):
             request_interval: Minimum seconds between requests (default: 0.0)
             **kwargs: Additional model-specific parameters
         """
-        self._api_key: str = api_key
-        self._base_url: str = base_url
+        self.api_key: str = api_key
+        self.base_url: str = base_url
         self.model_name: str = model_name
         self.max_retries: int = max_retries
         self.raise_exception: bool = raise_exception
@@ -47,16 +46,6 @@ class BaseLLM(ABC):
         self._last_request_time: float = 0.0
         self._request_lock: asyncio.Lock = asyncio.Lock()
 
-    @property
-    def api_key(self) -> str | None:
-        """Get API key from environment variable."""
-        return os.getenv("LLM_API_KEY") or self._api_key
-
-    @property
-    def base_url(self) -> str | None:
-        """Get base URL from environment variable."""
-        return os.getenv("LLM_BASE_URL") or self._base_url
-
     @staticmethod
     def _accumulate_tool_call_chunk(tool_call, ret_tools: list[ToolCall]):
         """Assemble incremental tool call chunks into complete ToolCall objects."""
diff --git a/reme/core/service_context.py b/reme/core/service_context.py
index 4ab83ff7..2c58fe7d 100644
--- a/reme/core/service_context.py
+++ b/reme/core/service_context.py
@@ -1,6 +1,5 @@
 """Service context."""
 
-import os
 from concurrent.futures import ThreadPoolExecutor
 from typing import TYPE_CHECKING
 
@@ -8,7 +7,7 @@ from loguru import logger
 
 from .base_dict import BaseDict
 from .schema import ServiceConfig
-from .utils import load_env, PydanticConfigParser
+from .utils import PydanticConfigParser
 
 if TYPE_CHECKING:
     from agentscope.model import ChatModelBase
@@ -29,10 +28,6 @@ class ServiceContext(BaseDict):
     def __init__(
         self,
         *args,
-        llm_api_key: str | None = None,
-        llm_base_url: str | None = None,
-        embedding_api_key: str | None = None,
-        embedding_base_url: str | None = None,
         service_config: ServiceConfig | None = None,
         parser: type[PydanticConfigParser] | None = None,
         working_dir: str | None = None,
@@ -52,15 +47,6 @@ class ServiceContext(BaseDict):
     ):
         super().__init__()
 
-        # Load environment variables
-        load_env()
-
-        # Update common environment variables for LLM and embedding services.
-        self.update_env("LLM_API_KEY", llm_api_key)
-        self.update_env("LLM_BASE_URL", llm_base_url)
-        self.update_env("EMBEDDING_API_KEY", embedding_api_key)
-        self.update_env("EMBEDDING_BASE_URL", embedding_base_url)
-
         if service_config is None:
             parser_class = parser if parser is not None else PydanticConfigParser
             parser_instance = parser_class(ServiceConfig)
@@ -114,12 +100,6 @@ class ServiceContext(BaseDict):
         self.flows: dict[str, "BaseFlow"] = {}
         self.mcp_server_mapping: dict[str, dict] = {}
 
-    @staticmethod
-    def update_env(key: str, value: str | None):
-        """Update environment variable if value is provided."""
-        if value:
-            os.environ[key] = value
-
     @staticmethod
     def _update_section_config(config: dict, section_name: str, **kwargs):
         """Update a specific section of the service config with new values."""
diff --git a/reme/core/utils/__init__.py b/reme/core/utils/__init__.py
index 9dbc59dc..b51936c7 100644
--- a/reme/core/utils/__init__.py
+++ b/reme/core/utils/__init__.py
@@ -19,7 +19,7 @@ from .pydantic_utils import create_pydantic_model
 from .singleton import singleton
 from .time import timer, get_now_time
 from .hf_token_counter_utils import get_hf_token_counter
-from .truncate_text_utils import truncate_text, is_truncated
+from .truncate_text_utils import truncate_text, truncate_text_head, is_truncated, TRUNCATION_MARKER_START
 
 __all__ = [
     "convert_dashscope_to_agentscope",
@@ -52,5 +52,7 @@ __all__ = [
     "get_now_time",
     "get_hf_token_counter",
     "truncate_text",
+    "truncate_text_head",
     "is_truncated",
+    "TRUNCATION_MARKER_START",
 ]
diff --git a/reme/core/utils/truncate_text_utils.py b/reme/core/utils/truncate_text_utils.py
index da0c473a..1f60d19f 100644
--- a/reme/core/utils/truncate_text_utils.py
+++ b/reme/core/utils/truncate_text_utils.py
@@ -41,15 +41,42 @@ def truncate_text(text: str, max_length: int) -> str:
     )
 
 
+def truncate_text_head(text: str, max_length: int) -> str:
+    """Truncate text from the beginning, keeping only the head portion.
+
+    Args:
+        text: The text to truncate
+        max_length: Maximum allowed length
+
+    Returns:
+        Truncated text with marker indicating truncation at the end
+    """
+    text = str(text) if text else ""
+    if not text:
+        return text
+
+    if len(text) <= max_length:
+        return text
+
+    truncated_chars = len(text) - max_length
+    logger.debug(
+        "Text truncated from head: original %d chars, kept %d, removed %d chars from tail.",
+        len(text),
+        max_length,
+        truncated_chars,
+    )
+    return f"{text[:max_length]}{TRUNCATION_MARKER_START}"
+
+
 def is_truncated(text: str) -> bool:
-    """Check if the text has been truncated (contains truncation markers).
+    """Check if the text has been truncated (contains truncation marker).
 
     Args:
         text: The text to check
 
     Returns:
-        bool: True if text contains truncation markers, False otherwise
+        bool: True if text contains truncation marker, False otherwise
     """
     if not text:
         return False
-    return TRUNCATION_MARKER_START in text and TRUNCATION_MARKER_END in text
+    return TRUNCATION_MARKER_START in text
diff --git a/reme/memory/file_based/components/cli.py b/reme/memory/file_based/components/cli.py
index f4dddc21..11d45035 100644
--- a/reme/memory/file_based/components/cli.py
+++ b/reme/memory/file_based/components/cli.py
@@ -3,6 +3,7 @@
 import asyncio
 from datetime import datetime
 from pathlib import Path
+import zoneinfo
 
 from agentscope.agent import ReActAgent
 from agentscope.message import Msg, TextBlock
@@ -46,6 +47,7 @@ class CliAgent(BaseOp):
         reserve_tokens: int = 36000,
         keep_recent_tokens: int = 20000,
         language: str = "zh",
+        timezone: str | None = None,
         **kwargs,
     ):
         super().__init__(**kwargs)
@@ -57,6 +59,7 @@ class CliAgent(BaseOp):
         self.reserve_tokens: int = reserve_tokens
         self.keep_recent_tokens: int = keep_recent_tokens
         self.language: str = language
+        self.timezone: str | None = timezone
 
         # Initialize message history
         self.messages: list[Msg] = []
@@ -93,6 +96,7 @@ class CliAgent(BaseOp):
             as_llm_formatter=self.as_llm_formatter,
             language=self.language if self.language == "zh" else "",
             console_enabled=False,  # We disable the terminal printing to avoid messy outputs
+            timezone=self.timezone,
         )
 
         # Create summary task
@@ -168,6 +172,7 @@ class CliAgent(BaseOp):
             as_llm_formatter=self.as_llm_formatter,
             language=self.language if self.language == "zh" else "",
             console_enabled=False,  # We disable the terminal printing to avoid messy outputs
+            timezone=self.timezone,
         )
 
         summary_content = await compactor.call(
@@ -195,7 +200,8 @@ class CliAgent(BaseOp):
 
     async def _build_messages(self, query: str) -> list[Msg]:
         """Build system prompt message."""
-        current_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S %A")
+        tz = zoneinfo.ZoneInfo(self.timezone) if self.timezone else None
+        current_time = datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S %A")
 
         # Create system prompt
         system_prompt = self.prompt_format(
diff --git a/reme/memory/file_based/components/summarizer.py b/reme/memory/file_based/components/summarizer.py
index d553a5f6..855d64c1 100644
--- a/reme/memory/file_based/components/summarizer.py
+++ b/reme/memory/file_based/components/summarizer.py
@@ -1,6 +1,7 @@
 """Summarizer module for memory summarization operations."""
 
 import datetime
+import zoneinfo
 
 from agentscope.agent import ReActAgent
 from agentscope.message import Msg
@@ -23,6 +24,7 @@ class Summarizer(BaseOp):
         memory_compact_threshold: int,
         toolkit: Toolkit | None = None,
         console_enabled: bool = False,
+        timezone: str | None = None,
         **kwargs,
     ):
         super().__init__(**kwargs)
@@ -31,6 +33,7 @@ class Summarizer(BaseOp):
         self.memory_compact_threshold: int = memory_compact_threshold
         self.toolkit: Toolkit | None = toolkit
         self.console_enabled: bool = console_enabled
+        self.timezone: str | None = timezone
 
     async def execute(self):
         messages: list[Msg] = self.context.get("messages", [])
@@ -62,7 +65,13 @@ class Summarizer(BaseOp):
 
         user_message: str = f"<conversation>\n{history_formatted_str}\n</conversation>\n" + self.prompt_format(
             "user_message",
-            date=datetime.datetime.now().strftime("%Y-%m-%d"),
+            date=(
+                datetime.datetime.now(
+                    zoneinfo.ZoneInfo(self.timezone),
+                )
+                if self.timezone
+                else datetime.datetime.now()
+            ).strftime("%Y-%m-%d"),
             working_dir=self.working_dir,
             memory_dir=self.memory_dir,
         )
diff --git a/reme/memory/file_based/components/summarizer.yaml b/reme/memory/file_based/components/summarizer.yaml
index 9aa0892b..00dbdc36 100644
--- a/reme/memory/file_based/components/summarizer.yaml
+++ b/reme/memory/file_based/components/summarizer.yaml
@@ -1,50 +1,61 @@
 user_message: |
-  Memory Pre-compression Flush Cycle Initiated
-  The current session is about to enter the automatic compression phase. Please capture persistent memory and write it to disk.
+   Memory Pre-compression Flush Cycle Initiated
 
-  Current date: {date}
-  Working directory: {working_dir}
+   The current session is about to enter the automatic compression phase. Please capture persistent memory AND session reflections, then write them to disk.
 
-  Immediately store persistent memory to: {memory_dir}/YYYY-MM-DD.md
+   Current date: {date}
+   Working directory: {working_dir}
 
-  Workflow:
-  1. First, `read` {memory_dir}/YYYY-MM-DD.md (if the file doesn’t exist, an error message will be returned).
-  2. Intelligently merge new information with existing content (skip merging if the file doesn’t exist):
-     - Avoid duplicating already recorded information
-     - Enrich existing entries with new details where relevant
-     - Maintain chronological order wherever applicable
-  3. Write the updated content:
-     - Prefer using `edit` to update specific sections when possible
-     - Use `write` to overwrite the entire file only if substantial restructuring is required
+   Immediately store persistent memory and reflections to: {memory_dir}/YYYY-MM-DD.md
 
-  Principles:
-  - Always preserve timestamps and any date/time-related context
-  - Add only genuinely new or meaningfully enriching information
-  - Keep entries concise yet complete
-  - If there’s nothing to store, respond with [SILENT]
+   Workflow:
+   1. First, `read` {memory_dir}/YYYY-MM-DD.md (if the file doesn’t exist, an error message will be returned).
+   2. Extract and synthesize content from the current session:
+      - Persistent Memory: Facts, user profile updates, project states, and important events.
+      - Experience Reflection: Reusable thinking logic derived from user feedback, successful problem-solving strategies, mistakes made/pitfalls to avoid, and actionable insights for future interactions.
+   3. Intelligently merge new information with existing content (skip merging if the file doesn’t exist):
+      - Categorize clearly (e.g., separate "Factual Memory" from "Reflections & Logic").
+      - Avoid duplicating already recorded information.
+      - Enrich existing entries with new details where relevant.
+      - Maintain chronological order wherever applicable.
+   4. Write the updated content:
+      - Prefer using `edit` to update specific sections when possible.
+      - Use `write` to overwrite the entire file only if substantial restructuring is required.
 
+   Principles:
+   - Always preserve timestamps and any date/time-related context.
+   - Add only genuinely new or meaningfully enriching information.
+   - Reflections MUST focus on forming reusable cognitive frameworks based on user feedback, aiming to improve future task execution.
+   - Keep entries concise yet complete.
+   - If there’s nothing to store or reflect on, respond with [SILENT].
 
 user_message_zh: |
-  预压缩内存刷新轮次。
-  当前会话即将进入自动压缩阶段；请将持久化记忆捕获并写入磁盘。
+   预压缩内存刷新轮次。
 
-  当前日期：{date}
-  工作目录：{working_dir}
+   当前会话即将进入自动压缩阶段；请将持久化记忆与经验反思捕获并写入磁盘。
 
-  立即存储持久化记忆（使用路径 {memory_dir}/YYYY-MM-DD.md）。
+   当前日期：{date}
+   工作目录：{working_dir}
 
-  工作流程：
-  1. 先 `read` {memory_dir}/YYYY-MM-DD.md（如文件不存在，会返回错误提示）
-  2. 智能合并新信息与现有内容（若文件不存在则跳过合并）：
-     - 避免重复已记录的信息
-     - 在相关时丰富现有条目的新细节
-     - 在适用时保持时间顺序
-  3. 写入更新后的内容：
-     - 尽可能使用 `edit` 更新特定部分
-     - 如需大幅重构则使用 `write` 覆盖整个文件
+   立即存储持久化记忆与反思（使用路径 {memory_dir}/YYYY-MM-DD.md）。
 
-  原则：
-  - 始终保留时间戳、日期和时间相关上下文
-  - 仅添加真正新的或有丰富价值的信息
-  - 保持条目简洁但完整
-  - 若无内容可存储，请回复 [SILENT]
+   工作流程：
+   1. 先 `read` {memory_dir}/YYYY-MM-DD.md（如文件不存在，会返回错误提示）
+   2. 从当前会话中提取并综合两类内容：
+      - 持久化记忆：客观事实、用户信息更新、项目状态及重要事件。
+      - 经验反思：基于用户反馈形成的可复用思考逻辑、成功的问题解决策略、犯下的错误/应避免的陷阱，以及对未来交互有帮助的行动指南。
+   3. 智能合并新信息与现有内容（若文件不存在则跳过合并）：
+      - 将内容进行清晰的分类（例如明确区分“事实记忆”与“反思与逻辑”）。
+      - 避免重复已记录的信息。
+      - 在相关时丰富现有条目的新细节。
+      - 在适用时保持时间顺序。
+   4. 写入更新后的内容：
+      - 尽可能使用 `edit` 更新特定部分。
+      - 如需大幅重构则使用 `write` 覆盖整个文件。
+
+   原则：
+   - 始终保留时间戳、日期和时间相关上下文。
+   - 仅添加真正新的或有丰富价值的信息。
+   - 反思内容必须侧重于根据用户反馈构建可复用的思维逻辑，以改善未来的任务执行。
+   - 保持条目简洁但完整。
+   - 若无任何新内容可存储或反思，请回复 [SILENT]。
\ No newline at end of file
diff --git a/reme/memory/file_based/components/tool_result_compactor.py b/reme/memory/file_based/components/tool_result_compactor.py
index c1c6fe00..002bb8ae 100644
--- a/reme/memory/file_based/components/tool_result_compactor.py
+++ b/reme/memory/file_based/components/tool_result_compactor.py
@@ -8,10 +8,26 @@ from agentscope.message import Msg
 
 from ....core.op import BaseOp
 from ....core.utils import get_logger
-from ....core.utils import truncate_text, is_truncated
+from ....core.utils import truncate_text_head, TRUNCATION_MARKER_START
 
 logger = get_logger()
 
+MAX_LINE_LENGTH = 10000
+
+
+def _split_long_lines(text: str, max_len: int = MAX_LINE_LENGTH) -> str:
+    """Split lines that exceed max_len by inserting newlines."""
+    lines = text.split("\n")
+    result = []
+    for line in lines:
+        if len(line) <= max_len:
+            result.append(line)
+        else:
+            # Split line into chunks of max_len
+            for i in range(0, len(line), max_len):
+                result.append(line[i : i + max_len])
+    return "\n".join(result)
+
 
 class ToolResultCompactor(BaseOp):
     """Truncate large tool_result outputs and save full content to files."""
@@ -19,43 +35,59 @@ class ToolResultCompactor(BaseOp):
     def __init__(
         self,
         tool_result_dir: str | Path,
-        tool_result_threshold: int,
         retention_days: int = 7,
+        recent_n: int = 1,
+        old_threshold: int = 500,
+        recent_threshold: int = 30000,
         **kwargs,
     ):
         super().__init__(**kwargs)
         self.tool_result_dir = Path(tool_result_dir)
-        self.tool_result_threshold = tool_result_threshold
         self.retention_days = retention_days
+        self.recent_n = recent_n
+        self.old_threshold = old_threshold
+        self.recent_threshold = recent_threshold
 
-    def _save_and_truncate(self, content: str, tool_name: str) -> str:
+    def _save_and_truncate(self, content: str, tool_name: str, threshold: int) -> str:
         """Save full content to file and return truncated version with file reference."""
-        if not content or is_truncated(content) or len(content) <= self.tool_result_threshold:
+        if not content:
             return content
 
-        # Save full content
+        # Check if content was previously truncated
+        if TRUNCATION_MARKER_START in content:
+            parts = content.split(TRUNCATION_MARKER_START, 1)
+            if len(parts[0]) <= threshold:
+                return content
+            return f"{truncate_text_head(parts[0], threshold)}{parts[1]}"
+
+        # Not truncated before
+        if len(content) <= threshold:
+            return content
+
+        # Save full content with long lines split
         self.tool_result_dir.mkdir(parents=True, exist_ok=True)
         file_path = self.tool_result_dir / f"{uuid.uuid4().hex}.txt"
         created_at = datetime.now().isoformat()
 
+        processed_content = _split_long_lines(content)
         file_path.write_text(
-            f"# tool_name: {tool_name}\n# created_at: {created_at}\n# ---\n{content}",
+            f"# tool_name: {tool_name}\n# created_at: {created_at}\n# ---\n{processed_content}",
             encoding="utf-8",
         )
         logger.debug("Saved tool result to %s (len=%d)", file_path, len(content))
 
         # Return truncated with file reference
-        return f"{truncate_text(content, self.tool_result_threshold)}\n\n[Full content saved to: {file_path}]"
+        return f"{truncate_text_head(content, threshold)}\n\n[Full content saved to: {file_path}]"
 
-    def _process_output(self, output: str | list[dict], tool_name: str) -> str | list[dict]:
+    def _process_output(self, output: str | list[dict], tool_name: str, threshold: int) -> str | list[dict]:
         """Process tool result output, truncating if necessary."""
         if isinstance(output, str):
-            return self._save_and_truncate(output, tool_name)
+            return self._save_and_truncate(output, tool_name, threshold)
 
         if isinstance(output, list):
             return [
                 (
-                    {**b, "text": self._save_and_truncate(b.get("text", ""), tool_name)}
+                    {**b, "text": self._save_and_truncate(b.get("text", ""), tool_name, threshold)}
                     if isinstance(b, dict) and b.get("type") == "text"
                     else b
                 )
@@ -69,15 +101,21 @@ class ToolResultCompactor(BaseOp):
         if not messages:
             return messages
 
-        for msg in messages:
+        # Split messages into old and recent parts
+        split_index = max(0, len(messages) - self.recent_n)
+
+        for idx, msg in enumerate(messages):
             if not isinstance(msg.content, list):
                 continue
 
+            # Determine threshold based on message position
+            threshold = self.recent_threshold if idx >= split_index else self.old_threshold
+
             for block in msg.content:
                 if isinstance(block, dict) and block.get("type") == "tool_result":
                     output = block.get("output")
                     if output:
-                        block["output"] = self._process_output(output, block.get("name", "unknown"))
+                        block["output"] = self._process_output(output, block.get("name", "unknown"), threshold)
 
         return messages
 
diff --git a/reme/memory/file_based/reme_in_memory_memory.py b/reme/memory/file_based/reme_in_memory_memory.py
index 4fcec627..5882b900 100644
--- a/reme/memory/file_based/reme_in_memory_memory.py
+++ b/reme/memory/file_based/reme_in_memory_memory.py
@@ -110,34 +110,19 @@ class ReMeInMemoryMemory(InMemoryMemory):
 
     async def get_memory(
         self,
-        mark: str | None = None,
-        exclude_mark: str | None = _MemoryMark.COMPRESSED,
         prepend_summary: bool = True,
         **_kwargs,
     ) -> list[Msg]:
         """Get the messages from the memory by mark (if provided).
 
         Args:
-            mark: Optional mark to filter messages
-            exclude_mark: Optional mark to exclude messages
             prepend_summary: Whether to prepend compressed summary
             **_kwargs: Additional keyword arguments (ignored)
 
         Returns:
             List of filtered messages
         """
-        if not (mark is None or isinstance(mark, str)):
-            raise TypeError(f"The mark should be a string or None, but got {type(mark)}.")
-
-        if not (exclude_mark is None or isinstance(exclude_mark, str)):
-            raise TypeError(f"The exclude_mark should be a string or None, but got {type(exclude_mark)}.")
-
-        # Filter messages based on mark
-        filtered_content = [(msg, marks) for msg, marks in self.content if mark is None or mark in marks]
-
-        # Further filter messages based on exclude_mark
-        if exclude_mark is not None:
-            filtered_content = [(msg, marks) for msg, marks in filtered_content if exclude_mark not in marks]
+        filtered_content = [(msg, marks) for msg, marks in self.content if _MemoryMark.COMPRESSED not in marks]
 
         if prepend_summary and self._compressed_summary:
             previous_summary = f"""
@@ -145,8 +130,7 @@ class ReMeInMemoryMemory(InMemoryMemory):
 {self._compressed_summary}
 </previous-summary>
 The above is a summary of our previous conversation.
-If there is a new instruction from the user, do not continue executing the previous content;
-only execute the user's new instruction.
+Use it as context to maintain continuity.
                     """.strip()
 
             return [
@@ -210,7 +194,7 @@ only execute the user's new instruction.
         if not messages:
             return 0
 
-        # Persist messages to dialog storage
+        # Persist messages to dialog storage instead of compressed
         self._append_messages_to_dialog(messages)
 
         # Remove messages from memory
@@ -258,10 +242,7 @@ only execute the user's new instruction.
             - context_usage_ratio: Usage percentage
             - messages_detail: List of per-message AsMsgStat objects
         """
-        messages = await self.get_memory(
-            exclude_mark=_MemoryMark.COMPRESSED,
-            prepend_summary=False,
-        )
+        messages = await self.get_memory(prepend_summary=False)
 
         compressed_summary = self.get_compressed_summary()
         compressed_summary_tokens = await self._msg_handler.count_str_token(compressed_summary)
diff --git a/reme/reme_light.py b/reme/reme_light.py
index c41320c3..58008120 100644
--- a/reme/reme_light.py
+++ b/reme/reme_light.py
@@ -61,8 +61,6 @@ class ReMeLight(Application):
         dialog_path (Path): Path to the dialog storage directory for raw conversation records.
         vector_weight (float): Weight for vector search in hybrid search (0-1).
         candidate_multiplier (float): Multiplier for candidate retrieval count.
-        tool_result_threshold (int): Character threshold for tool result compaction.
-        retention_days (int): Number of days to retain tool result files.
         summary_tasks (list[asyncio.Task]): List of active background summary tasks.
     """
 
@@ -78,8 +76,7 @@ class ReMeLight(Application):
         default_file_store_config: dict | None = None,
         vector_weight: float = 0.7,
         candidate_multiplier: float = 3.0,
-        tool_result_threshold: int = 1000,
-        retention_days: int = 7,
+        enable_load_env: bool = False,
     ):
         """
         Initialize the ReMeLight application.
@@ -110,11 +107,8 @@ class ReMeLight(Application):
             candidate_multiplier (float): Multiplier applied to max_results when
                 retrieving candidates for re-ranking. Default 3.0 means 3x more
                 candidates are retrieved than the final result count.
-            tool_result_threshold (int): Character count threshold for tool result
-                compaction. Results exceeding this length will be truncated and
-                saved to files. Default 1000 characters.
-            retention_days (int): Number of days to retain tool result files
-                before automatic cleanup. Default 7 days.
+            enable_load_env (bool): Whether to load environment variables from
+                .env file. Defaults to False.
 
         Note:
             The following directory structure will be created:
@@ -135,8 +129,6 @@ class ReMeLight(Application):
 
         self.vector_weight: float = vector_weight
         self.candidate_multiplier: float = candidate_multiplier
-        self.tool_result_threshold: int = tool_result_threshold
-        self.retention_days: int = retention_days
 
         # Initialize the parent Application class with comprehensive configuration
         super().__init__(
@@ -148,6 +140,7 @@ class ReMeLight(Application):
             config_path="light",
             enable_logo=False,
             log_to_console=False,
+            enable_load_env=enable_load_env,
             parser=ReMeConfigParser,
             default_as_llm_config=default_as_llm_config,
             default_embedding_model_config=default_embedding_model_config,
@@ -182,19 +175,15 @@ class ReMeLight(Application):
         Clean up expired tool result files from the tool result directory.
 
         This method removes tool result files that have exceeded the retention
-        period specified during initialization. It helps manage disk space by
-        automatically removing old, unused tool outputs.
+        period. It helps manage disk space by automatically removing old, unused
+        tool outputs.
 
         Returns:
             int: The number of files that were successfully deleted
         """
         try:
-            # Create a compactor instance with current configuration
-            compactor = ToolResultCompactor(
-                tool_result_dir=self.tool_result_path,
-                tool_result_threshold=self.tool_result_threshold,
-                retention_days=self.retention_days,
-            )
+            # Create a compactor instance with default configuration
+            compactor = ToolResultCompactor(tool_result_dir=self.tool_result_path)
             # Execute cleanup and return count of deleted files
             return compactor.cleanup_expired_files()
         except Exception as e:
@@ -239,7 +228,14 @@ class ReMeLight(Application):
         self._cleanup_tool_results()
         return await super().close()
 
-    async def compact_tool_result(self, messages: list[Msg]) -> list[Msg]:
+    async def compact_tool_result(
+        self,
+        messages: list[Msg],
+        recent_n: int = 1,
+        old_threshold: int = 500,
+        recent_threshold: int = 30000,
+        retention_days: int = 7,
+    ) -> list[Msg]:
         """
         Compact tool results by truncating large outputs and saving full content to files.
 
@@ -251,13 +247,19 @@ class ReMeLight(Application):
         Args:
             messages (list[Msg]): List of messages potentially containing tool results
                 that may need compaction.
+            recent_n (int): Number of recent messages to use recent_threshold for.
+                Default 1.
+            old_threshold (int): Character threshold for old messages. Default 500.
+            recent_threshold (int): Character threshold for recent messages. Default 30000.
+            retention_days (int): Number of days to retain tool result files.
+                Default 7.
 
         Returns:
             list[Msg]: The processed list of messages with large tool results compacted.
                 If an error occurs, returns the original unmodified messages.
 
         Note:
-            - Tool results shorter than tool_result_threshold are left unchanged
+            - Tool results are truncated based on old_threshold/recent_threshold
             - Full content of truncated results is saved to tool_result_path
             - Expired files are automatically cleaned up during this operation
         """
@@ -265,8 +267,10 @@ class ReMeLight(Application):
             # Create compactor with instance configuration
             compactor = ToolResultCompactor(
                 tool_result_dir=self.tool_result_path,
-                tool_result_threshold=self.tool_result_threshold,
-                retention_days=self.retention_days,
+                retention_days=retention_days,
+                recent_n=recent_n,
+                old_threshold=old_threshold,
+                recent_threshold=recent_threshold,
             )
 
             # Execute compaction and get processed messages
@@ -402,6 +406,7 @@ class ReMeLight(Application):
         language: str = "zh",
         max_input_length: float = 128 * 1024,
         compact_ratio: float = 0.7,
+        timezone: str | None = None,
     ) -> str:
         """
         Generate a comprehensive summary of the given messages.
@@ -426,6 +431,8 @@ class ReMeLight(Application):
                 Defaults to 128K tokens.
             compact_ratio (float): Ratio used to calculate compaction threshold.
                 Defaults to 0.7.
+            timezone (str | None): Timezone string for date formatting
+                (e.g., "America/Chicago"). Defaults to system local time if None.
 
         Returns:
             str: The generated summary text, or an empty string if an error occurred.
@@ -451,6 +458,7 @@ class ReMeLight(Application):
                 as_llm_formatter=as_llm_formatter,
                 as_token_counter=as_token_counter,
                 language=language if language == "zh" else "",
+                timezone=timezone,
             )
 
             return await summarizer.call(messages=messages, service_context=self.service_context)
diff --git a/tests/light/test_reme_light.py b/tests/light/test_reme_light.py
index fd884189..4fc7452a 100644
--- a/tests/light/test_reme_light.py
+++ b/tests/light/test_reme_light.py
@@ -34,6 +34,7 @@ async def main():
         default_as_llm_config={"model_name": "qwen3.5-35b-a3b"},
         # default_embedding_model_config={"model_name": "text-embedding-v4"},
         default_file_store_config={"fts_enabled": True, "vector_enabled": False},
+        enable_load_env=True,
     )
     logging.getLogger("reme").setLevel(logging.WARNING)
     await reme.start()