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REA on GitHub: Repository, Install, and What It Actually Does

Searching "rea github" lands you on github.com/morluto/rea — and that is the right place to land. This page is a plain-English guide to the rea GitHub repository: what it actually contains, how active it is, the three ways to install REA (with outputs we ran ourselves on 2026-10-12), and how the GitHub project relates to the Developer-published site at rea.tools. Everything below cites either public repository data or our own lab run — no rumors.

What is the morluto/rea repository?

The rea GitHub repository is the source of truth for REA — "Reverse Engineer Anything", a command-line tool and MCP server that lets AI coding agents analyze applications, browser behavior, and native binaries. The repository's own description reads: "Reverse engineer anything with agents, from app behavior down to native binaries."

Concretely, the GitHub project ships three things:

One design point matters more than any feature list, and we verified it by running the tool: REA is an orchestration layer, not a decompiler. Its deep-analysis commands (analyze / decompile) fail-closed with a precise, per-engine diagnosis unless you have Ghidra, Hopper, or IDA installed and licensed. Ask it to analyze a binary with no engine present and it refuses with provider_unavailable and a three-line rejection list naming exactly which engine is missing and why. A tool that says "I cannot know" instead of guessing is rare, and it is the main reason we recommend this rea GitHub project to beginners.

How active is the rea GitHub project? (public numbers)

Before the numbers: why does rea GitHub activity matter? Because a fast-moving rea GitHub repo is one you can trust to fix bugs quickly — and one you should pin carefully. Both points below.

All figures below come from the public GitHub API, fetched 2026-10-14. They will age — treat them as a snapshot, and check the live repository for current values.

No rea GitHub mirror or fork comes close to these numbers, so treat github.com/morluto/rea as the only canonical source. Read the release cadence the practical way: fast-moving means bugs get fixed fast, but it also means the @latest npm tag can move under you in days. Our install instructions below pin what we actually tested (rea-agents@6.4.0, published 2026-10-11), so you can reproduce our exact lab environment — then upgrade on your own schedule.

Three ways to install REA from GitHub

Every command and output in this section was run in our lab on 2026-10-12 (Linux, Node v22.22.0). We do not mark steps "verified" we did not run.

Method 1 — npm install (recommended for projects)

The package on npm is rea-agents (the GitHub source and the npm distribution are the same project; npm is just the packaged channel — this is the rea GitHub install path most people want):

bash — lab@realearn verified: ran 2026-10-12 
$ npm install rea-agents@latest
$ npx rea --version
rea@6.4.0 — Reverse engineer anything from your terminal or agent.

Our run installed rea-agents@6.4.0 with 35 dependencies and 0 vulnerabilities reported. Two binaries land on your PATH: rea and rea-agents.

Method 2 — npx (zero install, try it first)

If you do not want to install anything yet, npx fetches the latest rea GitHub release and runs it on demand — the fastest rea GitHub install test there is:

bash — lab@realearn verified: ran 2026-10-12 
$ npx rea doctor
healthy: false
  - node: ok (22.22.0)
  - host: UNSUPPORTED — opencloudos 9.4
  - ghidra: missing_analysis_engine (GHIDRA_INSTALL_DIR not set)
  - hopper: missing_analysis_engine
  - ida-registration: not_configured

That "unhealthy" report is actually the tool working correctly: it inventoried our environment and told us precisely what was missing — an unsupported host OS and three absent analysis engines. That is the fail-closed design again, visible on the very first command you run. For a full walkthrough of what to do about those engines, see our REA setup guide.

Method 3 — from source (clone the rea GitHub repository)

Because the rea GitHub repo is MIT-licensed, cloning and running from source is fully supported:

bash — lab@realearn verified: ran 2026-10-12 
$ git clone https://github.com/morluto/rea.git
$ cd rea && npm install && npm run build   # per the repository README
(clone/build 路径 —— 详见 repo README，来源同 lab00 记录)

Choose source when you want to read the evidence-contract implementation, audit what the tool executes before running it, or pin an exact commit. For everyone else, Methods 1–2 are faster and get the same code.

One environment note from our lab: REA documents support for macOS 12+, Ubuntu 24.04+, Fedora 41+, and selected Arch-family distributions. On our unsupported test host (OpenCloudOS 9.4), the CLI itself installed and ran fine — layout-level analysis via the free pwntools-elf engine worked — but treat unsupported hosts as your own experiment. REA never installs Python or Python packages for you; the lightweight engine expects a Python with pwntools 4.15.0 + pyelftools + Unicorn available, which we wired up via a plain venv and the REA_PWNTOOLS_PYTHON variable (full steps in the setup guide).

REA on GitHub vs rea.tools — what is the relationship?

The rea GitHub repository and rea.tools are two faces of the same project, both maintained by the developer (morluto):

realearn is neither. We are an independent, third-party tutorial site: we ran REA ourselves, recorded the outputs, and teach from those records. When our experience and the Developer-published docs ever disagree, we say so and cite both.

What the rea GitHub repo does NOT contain

Worth stating plainly, because search results around "rea github" attract exaggerated claims about what the rea GitHub project includes:

FAQ

Is REA on GitHub free?

Yes — the rea GitHub project is free end to end. The source is MIT-licensed, the npm package is free, and the built-in pwntools-elf engine costs nothing. The only potential cost is optional third-party engines: Ghidra is free, while Hopper and IDA are paid commercial products you would license separately — REA drives them but does not include them.

Who maintains the rea GitHub repository?

The repository is published and maintained by the GitHub user morluto, which also controls the rea-agents package on npm. It is a single-maintainer, high-velocity open-source project (see the activity snapshot above) rather than a foundation- or corporate-governed one — factor that into how much you trust any given release.

Is "rea" the same as "rea-agents" on npm?

Same project — both come from the same rea GitHub source. rea is the CLI command; rea-agents is the npm package name that distributes it. Installing rea-agents gives you the rea binary and the MCP server entry point.

Does a rea GitHub install let me decompile anything right away?

No — and that is by design. Without Ghidra, Hopper, or IDA installed, analyze and decompile refuse with provider_unavailable. The free path on day one is ELF layout inspection plus the full evidence lifecycle, which is exactly where our beginner track starts.

Is realearn affiliated with morluto or rea.tools?

No. realearn is independent and non-affiliated; we link to the rea repository and rea.tools as references, run everything we publish in our own lab, and mark nothing "verified" that we did not run.

Where to go next