Agent MCP Server for LM Studio

A lightweight MCP (Model Context Protocol) server that provides local agent capabilities for LM Studio: file I/O, terminal execution, and web search.

Features

Tool	Description
agent_read_file	Read text files with offset/limit pagination and encoding support
agent_write_file	Write or append to files, with optional parent directory creation
agent_execute_command	Execute shell commands with pipes, redirections, custom working directory, environment variables, and configurable timeout
agent_web_search	Search the web via DuckDuckGo (no API key required), returning titles, URLs, and snippets

Requirements

• Python 3.10+
• Dependencies listed in requirements.txt

Installation

cd lmstudio_agent_mcp
pip install -r requirements.txt

Usage with LM Studio

Add the following to your LM Studio MCP server configuration:

{
  "mcpServers": {
    "agent_mcp": {
      "command": "python3",
      "args": ["/absolute/path/to/lmstudio_agent_mcp/server.py"]
    }
  }
}

If you are using a virtual environment, replace python3 with the absolute path to your venv's Python binary (e.g. /path/to/venv/bin/python).

Usage with Other MCP Clients

The server uses stdio transport by default. Start it directly:

python3 server.py

For remote access, you can switch to streamable HTTP:

# Add to the bottom of server.py
if __name__ == "__main__":
    mcp.run(transport="streamable_http", port=8000)

Tool Reference

agent_read_file

Read the contents of a text file.

Parameter	Type	Default	Description
path	string	(required)	Absolute or relative path to the file
offset	int	0	Number of lines to skip from the beginning
limit	int | null	200	Maximum number of lines to return (null = unlimited)
encoding	string	"utf-8"	Text encoding

agent_write_file

Write text content to a file.

Parameter	Type	Default	Description
path	string	(required)	Absolute or relative path to the file
content	string	(required)	Text content to write
encoding	string	"utf-8"	Text encoding
append	bool	false	If true, append instead of overwrite
create_dirs	bool	true	If true, create parent directories when missing

agent_execute_command

Execute a terminal command.

Parameter	Type	Default	Description
command	string	(required)	Shell command to execute
working_directory	string | null	null	Working directory (defaults to server cwd)
timeout	float	60.0	Maximum execution time in seconds (1-600)
env	object | null	null	Additional environment variables to set
shell	bool	true	Execute through system shell (required for pipes/redirects)

agent_web_search

Search the web via DuckDuckGo.

Parameter	Type	Default	Description
query	string	(required)	Search query (1-500 chars)
num_results	int	5	Maximum results to return (1-20)
region	string | null	null	DuckDuckGo region code (e.g. wt-wt, us-en, zh-cn)

Security Notes

• File paths are resolved to absolute paths; ~ expansion is supported
• Large files (>10 MiB) are rejected to prevent memory exhaustion
• Command execution has a configurable timeout (max 600s)
• Do not expose this server to untrusted clients — agent_execute_command can run arbitrary shell commands

License

MIT