Question 1

What is the MCP Shell Server?

Accepted Answer

The MCP Shell Server is a secure server that implements the Model Context Protocol (MCP) to allow authorized AI agents to remotely execute shell commands.

Question 2

What is MCP?

Accepted Answer

MCP (Model Context Protocol) is an open protocol that standardizes how applications provide context to Large Language Models (LLMs), enabling them to interact with external data and tools.

Question 3

Why is the MCP Shell Server needed?

Accepted Answer

It provides a secure way for AI agents to interact with systems by executing shell commands while preventing unauthorized access and malicious activities.

Question 4

What security measures does the MCP Shell Server implement?

Accepted Answer

It uses a command whitelist, validates input, validates shell operators, and can be run in a sandboxed environment.

Question 5

How do I specify allowed commands?

Accepted Answer

You can specify allowed commands using the `ALLOW_COMMANDS` or `ALLOWED_COMMANDS` environment variable.

Question 6

What happens if I try to execute a command that is not allowed?

Accepted Answer

The server will return an error indicating that the command is not permitted.

Question 7

Can I pass input to commands via stdin?

Accepted Answer

Yes, the server supports passing input to commands via stdin.

Question 8

Can I specify a timeout for command execution?

Accepted Answer

Yes, you can specify a maximum execution time for commands using the `timeout` parameter in the request.

Question 9

How do I install the MCP Shell Server?

Accepted Answer

You can install it using pip: `pip install mcp-shell-server`.

Question 10

What are the requirements to run the MCP Shell Server?

Accepted Answer

You need Python 3.11 or higher and `mcp>=1.1.0`.

Question 11

How does the MCP Shell Server integrate with UBOS?

Accepted Answer

It integrates seamlessly, allowing AI agents developed on the UBOS platform to securely execute shell commands and interact with other UBOS services.

Question 12

Can I specify a working directory for command execution?

Accepted Answer

Yes, you can specify a working directory using the `directory` parameter in the request.

Question 13

What kind of output does the server return?

Accepted Answer

The server returns stdout, stderr, exit code, and execution time for each command.

Question 14

How do I contribute to the MCP Shell Server project?

Accepted Answer

You can contribute by submitting pull requests, reporting issues, and providing feedback on the GitHub repository.

MCP Shell Server

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