Local Rails Runner

Example Use Cases

• 1

  Run read-only Rails console queries locally to inspect application data and produce analysis without altering the database.

• 2

  Plan, validate, and store proposed database mutations as dry-run code snippets for review before execution.

• 3

  Execute previously approved mutation snippets against a local Rails app in a controlled, auditable way (integrates with Cursor/Claude workflows).

Description

This MCP server exposes tools to execute read-only Rails console operations, plan and validate mutations via dry-run code snippets, and execute approved mutations in a controlled local environment. It integrates with developer workflows and tools like Cursor and Claude Desktop to provide model-assisted development and data wrangling. The server emphasizes safety by separating read-only operations, dry-run planning, and explicit approval before executing potentially destructive changes.