An MCP (Model Context Protocol) server that allows AI assistants to execute Nushell scripts with full system access.

This server spawns nu -c "<script>" processes to execute commands. The nu process runs with the same permissions as the server process, giving it access to:

• File system (read/write/delete)
• Network (make requests, start servers)
• Environment variables
• System commands via nu's shell integration
• Any custom nu configurations you provide

Security implications: The AI can execute arbitrary code on your system. Only use with trusted AI assistants and in environments where this level of access is acceptable.

Executes Nushell scripts and returns stdout, stderr, exit code.

Parameters:

• script (required): Nushell script to execute
• timeout_seconds (optional): Timeout in seconds (default: 30)

Example:

{
  "script": "ls | where size > 1MB | get name",
  "timeout_seconds": 10
}

The server accepts optional CLI arguments to use custom nu config files:

mcp-server-nu --nu-config /path/to/config.nu --nu-env-config /path/to/env.nu

Options:

• --nu-config <path>: Custom config.nu file (sets up commands, aliases, etc.)
• --nu-env-config <path>: Custom env.nu file (sets up environment variables)

When provided, these configs are loaded for every script execution via nu --config <path> --env-config <path> -c "<script>".

cargo install --locked mcp-server-nu
npx @modelcontextprotocol/inspector mcp-server-nu

With custom config:

npx @modelcontextprotocol/inspector -- mcp-server-nu --nu-config /path/to/config.nu