diff --git a/README.md b/README.md
index 8683192..d1731f0 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Humanus (meaning "human" in Latin) is a lightweight framework inspired by OpenMa
 Let's embrace local LLM agents w/ humanus.cpp!
 
 ## Overview
-
+```bash
 humanus.cpp/
 ├── 📄 config.cpp/.h               # 配置系统头文件
 ├── 📄 llm.cpp/.h                  # LLM集成主实现文件
@@ -39,7 +39,7 @@ humanus.cpp/
     ├── 📄 python_execute.h        # Python执行工具
     ├── 📄 terminate.h             # 终止工具
     └── 📄 tool_collection.h       # 工具集合定义
-
+```
 
 
 ## Features
@@ -55,13 +55,26 @@ cmake --build build --config Release
 
 ## How to Run
 
-Start a MCP server with tool python_execute` on port 8818:
+Switch to your own configration first:
+1. Replace `base_url`, `api_key`, .etc in `config/config_llm.toml` according to your need.
+2. Fill in `args` after `"@modelcontextprotocol/server-filesystem"` for `filesystem` to control the access to files. For example:
+```
+[filesystem]
+type = "stdio"
+command = "npx"
+args = ["-y",
+        "@modelcontextprotocol/server-filesystem",
+        "/Users/{username}/Desktop",
+        "other/path/to/your/files]
+```
+
+Start a MCP server with tool `python_execute` on port 8818:
 ```bash
-./build/bin/humanus_server # Unix/MacOS
+./build/bin/mcp_server # Unix/MacOS
 ```
 
 ```shell
-.\build\bin\Release\humanus_server.exe  # Windows
+.\build\bin\Release\mcp_server.exe  # Windows
 ```
 
 Run agent `Humanus` with tools `python_execute`, `filesystem` and `puppeteer` (for browser use):
diff --git a/config.h b/config.h
index 7b617b9..43f83f0 100644
--- a/config.h
+++ b/config.h
@@ -106,7 +106,7 @@ struct ToolParser {
                         {"function", json::parse(tool_content)}
                     });
                     tool_calls.back()["id"] = "call_" + std::to_string(std::chrono::system_clock::now().time_since_epoch().count());
-                } catch (const json::exception& e) {
+                } catch (const json::exception& /* e */) {
                     throw std::runtime_error("Invalid tool call: " + tool_content);
                 }
             }
diff --git a/mcp b/mcp
index 4536d45..5e9ff48 160000
--- a/mcp
+++ b/mcp
@@ -1 +1 @@
-Subproject commit 4536d45a9e18def8d88a41b95b4fa17bc5e574d6
+Subproject commit 5e9ff48b070a11ba20529feb22c68d0e9ef46f3d