Shell FAQs

Question 1

What is Shell and what does it do?

Accepted Answer

Shell enables AI assistants and other MCP clients to securely execute shell commands through the Model Context Protocol. It acts as a command-line actuator for LLMs, allowing them to interact with the real world.

Question 2

What is the Model Context Protocol (MCP) and how does Shell use it?

Accepted Answer

MCP is a standardized protocol for communication between AI systems and tools. Shell uses MCP to expose the system shell as a structured tool, enabling autonomous workflows and tool-assisted reasoning.

Question 3

What kind of output does Shell provide?

Accepted Answer

Shell provides structured JSON output including stdout, stderr, exit codes, execution time, and security metadata for easy integration with AI systems.

Question 4

How does Shell ensure security?

Accepted Answer

Shell features configurable command allowlists/blocklists, resource limits, Docker isolation, and audit logging to ensure secure command execution and prevent unauthorized actions.

Question 5

Is Docker required to use Shell?

Accepted Answer

While Docker is recommended for lightweight and secure isolation, it is not strictly required. Shell can be run directly on a Unix-like system with Go installed.

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