Super Shell MCP Server

Super Shell MCP

Local serverstdioPython

What is the Super Shell MCP server?

Connect Super Shell to Claude, Cursor or any other MCP client and it stops being a tab you switch to. Super Shell MCP. The super shell mcp server is what makes that connection.

What the server does

An MCP (Model Context Protocol) server for executing shell commands across multiple platforms (Windows, macOS, Linux). This server provides a secure way to execute shell commands with built-in whitelisting and approval mechanisms.

  • Execute shell commands through MCP on Windows, macOS, and Linux
  • Automatic platform detection and shell selection
  • Support for multiple shells:
  • Windows — cmd.exe, PowerShell
  • macOS — zsh, bash, sh
  • Linux — bash, sh, zsh

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • echo — Print text to standard output
  • pwd — Print working directory
  • cat — Concatenate and print files
  • grep — Search for patterns in files
  • find — Find files in a directory hierarchy
  • head — Output the first part of files
  • tail — Output the last part of files
  • dir — List directory contents
  • type — Display the contents of a text file
  • findstr — Search for strings in files
  • where — Locate programs
  • whoami — Display current user

Credentials and setup notes

Configuration is passed through the environment: CUSTOM_SHELL, SUPER_SHELL_USE_SHELL. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

Installation

The server ships on npm as @smithery/cli, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Where it fits

Plenty of file and storage access servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Super Shell's toolset — echo, pwd, cat and 11 more — is a fair guide to whether it matches your workflow. It is maintained by cfdude; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • With 14 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Super Shell.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
echoPrint text to standard output
pwdPrint working directory
catConcatenate and print files
grepSearch for patterns in files
findFind files in a directory hierarchy
headOutput the first part of files
tailOutput the last part of files
dirList directory contents
typeDisplay the contents of a text file
findstrSearch for strings in files
whereLocate programs
whoamiDisplay current user
hostnameDisplay computer name
verDisplay operating system version

How to install the Super Shell MCP server

{
  "mcpServers": {
    "super-shell": {
      "command": "npx",
      "args": ["-y", "@smithery/cli"],
      "env": {
        "CUSTOM_SHELL": "your-value",
        "SUPER_SHELL_USE_SHELL": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
CUSTOM_SHELLConfiguration value read at startup.Optional
SUPER_SHELL_USE_SHELLConfiguration value read at startup.Optional

Example prompts to try

  • Use Super Shell to echo.
  • Use Super Shell to pwd.
  • Use Super Shell to cat.

Frequently asked questions

It is an MCP server that allows AI assistants like Claude to execute shell commands on the host machine with built-in security features including whitelisting, approval workflows, and disabled shell parsing by default.