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MCP Server: SSH Rails Runner

by tadasant
npmGitHub
TypeScript
MIT License
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local-only server

The server can only run on the client’s local machine because it depends on local resources.

Integrations

  • Enables using Cursor Composer to pull in Rails model files as context and execute database operations. The README states: 'This works great with Cursor. You can use Cursor Composer to pull in your Rails model files as context...'

MCP Server: SSH Rails Runner

An MCP server that enables secure remote execution of Rails console commands via SSH. This server provides tools for both read-only operations and carefully managed mutations in a deployed Rails environment.

This works great with Cursor. You can use Cursor Composer to pull in your Rails model files as context and then use the execute_read_only, dry_run_mutate, and execute_mutate tools to make changes to the database. No need to trudge through complicated Admin UI's to get your data wrangling and analysis done.

Example

Features

  • Remote Rails console execution over SSH
  • Safe read-only operations
  • Dry-run capability for mutations
  • Execution of approved mutations
  • Resource management for code snippets

Installation

npm install npm run build

Configuration

Set the following environment variables:

SSH_HOST=your.remote.host SSH_USER=your_ssh_user SSH_PRIVATE_KEY_PATH=your_SSH_PRIVATE_KEY_PATH RAILS_WORKING_DIR=/path/to/rails/app

Usage with Claude Desktop

Add to your Claude Desktop configuration:

{ "mcpServers": { "ssh-rails-runner": { "command": "npx", "args": ["mcp-server-ssh-rails-runner"], "env": { "SSH_HOST": "your.remote.host", "SSH_USER": "your_ssh_user", "SSH_PRIVATE_KEY_PATH": "your_SSH_PRIVATE_KEY_PATH", "RAILS_WORKING_DIR": "/path/to/rails/app/root" } } } }

Available Tools

run_read_only

Executes read-only Rails console operations. The tool will analyze the request, formulate safe read-only commands, and return the results.

dry_run_mutate

Plans and validates potential mutations. Creates a code snippet resource with the proposed changes without executing them.

execute_mutate

Executes previously approved mutation code snippets. Requires explicit user approval of a code snippet resource before execution.

Security Considerations

  • Only use with trusted SSH endpoints from your own local machine that is (temporarily) provided access to the remote environment
  • Review all mutations before execution

License

MIT

This server cannot be installed

-
security - not tested
A
license - permissive license
-
quality - not tested

Enables secure remote execution of Rails console commands over SSH for read-only operations, mutation planning, and executing approved changes in a deployed Rails environment.

  1. Example
    1. Features
      1. Installation
        1. Configuration
          1. Usage with Claude Desktop
            1. Available Tools
              1. run_read_only
              2. dry_run_mutate
              3. execute_mutate
            2. Security Considerations
              1. License

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