diff --git a/src/command/handlers/save_session.rs b/src/command/handlers/save_session.rs
index d4fd394..fcd4b19 100644
--- a/src/command/handlers/save_session.rs
+++ b/src/command/handlers/save_session.rs
@@ -327,7 +327,8 @@ pub fn format_timestamp(ts: i64) -> String {
 
 /// 解析文件路径
 ///
-/// 如果未提供路径，自动生成基于会话标题和时间戳的文件名
+/// 如果未提供路径，自动生成基于会话标题和时间戳的文件名，
+/// 保存到用户主目录下的 .picobot/sessions/ 目录
 pub fn resolve_filepath(filepath: Option<String>, record: &SessionRecord) -> PathBuf {
     match filepath {
         Some(path) => PathBuf::from(path),
@@ -357,7 +358,12 @@ pub fn resolve_filepath(filepath: Option<String>, record: &SessionRecord) -> Pat
             let timestamp = Local::now().format("%Y%m%d_%H%M%S");
             let filename = format!("{}_{}.md", base_name, timestamp);
 
-            PathBuf::from(filename)
+            // 保存到用户主目录下的 .picobot/sessions/ 目录
+            dirs::home_dir()
+                .unwrap_or_else(|| PathBuf::from("."))
+                .join(".picobot")
+                .join("sessions")
+                .join(filename)
         }
     }
 }
diff --git a/src/gateway/processor.rs b/src/gateway/processor.rs
index 30cd637..84cc7ba 100644
--- a/src/gateway/processor.rs
+++ b/src/gateway/processor.rs
@@ -15,7 +15,7 @@ pub struct InboundProcessor {
     bus: Arc<MessageBus>,
     session_manager: SessionManager,
     semaphore: Arc<Semaphore>,
-    provider_config: LLMProviderConfig,
+    _provider_config: LLMProviderConfig,
     command_router: Arc<InChatCommandRouter>,
 }
 
@@ -40,7 +40,7 @@ impl InboundProcessor {
             bus,
             session_manager,
             semaphore,
-            provider_config,
+            _provider_config: provider_config,
             command_router: Arc::new(command_router),
         }
     }