getting-started · 3
Getting started
Identify unknown files with magic bytes and file(1), or install REA and connect its MCP server to Claude Code, Cursor or Codex for deeper analysis. Guides cover file identification, setup and a first analysis, plus checking that the rea-agents package you install is the genuine npm release.
Identify a File Type by Its Magic Bytes, Then Pick the Right Tool
Identify a file with no extension from its first bytes with file, xxd or Format-Hex, split ZIP formats like APK and NuGet, and open each in the right tool.
Install REA MCP and Connect Claude Code, Cursor and Codex
Install REA with npx rea-agents setup, connect Claude Code, Cursor or Codex over MCP, check providers and capabilities, and run your first analysis.
Is REA Safe? Install the Real Reverse Engineer Anything from npm
Confirm you install the genuine REA: the official GitHub repo and npm package, npm view checks, provenance via npm audit signatures, and where to report fakes.