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← Reverse engineer anything · Mission 2 of 4

Get the prompt behind any GitHub project in 4 seconds

Paste a GitHub link, get back the plain-English prompt someone could give Claude or Cursor to build that project. Free, in your browser, no account, about 4 seconds.

15 minBeginnerTools: FreeFree mission
Tested 7 Oct 2026 · gitreverse.com (hosted, signed out), Microsoft Edge, Windows 11. Tested on sharkdp/bat, koala73/worldmonitor, rupa/z and a 2-day-old repo
A ready-to-paste build prompt for any public GitHub project, in seconds
A quick way to understand what a project does before you read any code
A quick way to spot what a prompt gets right and what it can't see
  • Ten repos worth reversing tonight, each one a small project you could build your own take on
  • A safe way to turn someone else's idea into your own version
Before you start
  • A browser. No account, no API key, nothing to install.
  • Optional: an AI coding tool (Claude, Cursor, Claude Code, Codex) to paste the prompt into
01/04Open GitReverse and learn the shortcut0 done
STEP 01 of 04~2 min

Open GitReverse and learn the shortcut

You can reverse any public repo just by changing its web address.

  1. Open gitreverse.com ↗. It's the official hosted version of GitReverse ↗, an open project on GitHub. You don't need to sign in: ignore the Sign in button, everything in this mission works without it.

    GitReverse home page with a box for a GitHub URL and a Get Prompt button
    The home page. Paste a GitHub link or owner/repo and press Get Prompt.

  2. The faster way is the shortcut: take any GitHub address and change github to gitreverse. So this:

    GitHub link
    https://github.com/sharkdp/bat

  3. becomes this, and the prompt starts generating as soon as the page opens:

    GitReverse link
    https://gitreverse.com/sharkdp/bat
    TipThe project's own README explains how to run GitReverse on your own PC, but that version needs your own paid or free key from an AI provider (xAI, OpenRouter, Azure, Google AI Studio or ApiSmart). The hosted site needs none of that, so we use it here.
✓
CheckpointYou can see the GitReverse page with a box that says https://github.com/?
Stuck? Ask the community
STEP 02 of 04~3 min

Reverse a small, well-known tool

Start with a project you can check, so you learn how far to trust the output.

  1. Open gitreverse.com/sharkdp/bat ↗. bat is a popular terminal tool (about 60,000 stars) that shows files with colours and line numbers. Here's the prompt it gives:

    Output
    Build me a terminal app like a smarter cat command.

I want to be able to open text files in the terminal with nice syntax
highlighting, line numbers, and clear handling for things like JSON, Rust,
Markdown, and config files. It should also show git changes in the file when
the file is inside a repository, and make it easy to spot non printable
characters when I need that. If the output is too long for one screen, it
should page automatically, but still behave like normal cat when I pipe it
into another command.

Make it feel polished and easy to use from the command line, with a few
useful flags for plain output, choosing a language manually, and controlling
paging. ...
    GitReverse showing the reverse engineered prompt for sharkdp/bat with a Copy button
    The result for sharkdp/bat. The orange Copy button puts the whole prompt on your clipboard.

  2. How good is it?Very good for a tool like this. Every feature it lists is a real bat feature: syntax highlighting, git changes in the margin, showing hidden characters, automatic paging, and acting like plain cat when piped. It doesn't say which programming language to use (bat is written in Rust), so an AI would pick its own.

  3. Speeda repo nobody has reversed before takes about 4 seconds. One that's already been done loads in under a second, because the site saves every prompt.

    TipThe grey box under the prompt ("Are you gonna build this?") is a sponsored advert for a code review tool. You don't need it.
✓
CheckpointYou have a prompt on screen that starts with something like "Build me..." and a Copy button.
If it breaksIt says it hit a limit or asks me to browse the library + 1 more
It says it hit a limit or asks me to browse the library
The site has run out of AI credits or hit GitHub's limit for a moment. Wait a few minutes and reload, or search for the repo in the Library ↗: popular repos are usually there already.
It says the repository can't be found
GitReverse only reads public repositories. A private repo, or a typo in the owner/repo part of the address, both show this. Check the repo opens on GitHub while you're signed out.
Still stuck? Ask the community
STEP 03 of 04~6 min

Reverse a big project and check it

On large projects the prompt is a summary, so compare it with the real thing.

  1. Now try a big one from this site's own lessons: gitreverse.com/koala73/worldmonitor ↗, the global news and data dashboard from the "See everything" track (about 88,000 stars).

    GitReverse prompt for koala73/worldmonitor describing a real-time global intelligence dashboard
    World Monitor reversed. This one was already saved, so it appeared in 0.5 seconds.
    Output
    I want to build a real-time global intelligence dashboard, something like a
personal Palantir for OSINT. The main interface should be a 3D globe or a
flat map where I can overlay dozens of different data layers. It needs to
pull news from hundreds of curated sources, then use AI to summarize them
into briefings.
...
This should work as a website but also as a native desktop app for Mac,
Windows, and Linux. A key feature is that it must be able to use local AI
through Ollama so I don't have to manage API keys. You can figure out the
best tech stack to make this happen, just make it fast and real-time.

  2. Here's how it compares, line by line, with World Monitor's README:

    • Right: 3D globe and flat map, AI news briefings, finance tracking, desktop apps for Mac, Windows and Linux, local AI through Ollama, and several versions (tech, finance, happy) from one codebase.
    • Missing: the commodity and energy versions, and the country instability scores.
    • Added by the AI: "personal Palantir" is the AI's own phrase, not the project's.
    • Left out on purpose: the actual building blocks. The README names them (TypeScript, globe.gl, deck.gl and Tauri 2 for the desktop app), but the prompt says "figure out the best tech stack".

  3. So the prompt is a good what, not a full how. For a 30-second idea of what a huge project does, it's excellent. To rebuild something that size you'd need far more than one paragraph.

  4. Three things to know before you trust any prompt it gives you:

    • It never reads the code. GitReverse's own README says it only uses the repo's description and stats, the list of files and folders at the top level, and the README. A repo with a thin README gets a thin prompt.
    • Saved prompts can be out of date. The first person to reverse a repo freezes the prompt. GitReverse's own saved prompt says it uses OpenRouter, but its README now lists five AI providers. Check when a repo last changed.
    • It's short on purpose. The prompts are designed to be about 120 to 200 words, like a real person typing a request. Fine for small tools, a starting point for big ones.
    GitReverse Prompt Library showing 66,914+ prompts, with recently reversed repos at the top marked just now
    The public Library. Repos you reverse appear at the top within seconds, marked "just now".
    CarefulEvery repo you reverse is added to a public library that anyone can browse. That's fine for public repos, but don't use it on anything you'd rather people didn't know you were looking at.
    TipReverse one of your own public repos. If the prompt misses the point of your project, your README is too thin: it's a free way to see your project the way a newcomer (or an AI) does, and a nudge to fix the README.
✓
CheckpointYou've spotted at least one thing the prompt got right and one thing it missed, and found your reversed repos in the Library ↗.
Stuck? Ask the community
STEP 04 of 04~4 min

Use the prompt for your own thing

The point is to learn and build your own version, not to copy someone else's.

  1. Click Copy, then paste it into your AI coding tool (Claude, Cursor, Claude Code, Codex). Before you do, change it: swap in your own name, your own audience and one feature the original doesn't have. That's the difference between learning from a project and cloning it.

  2. For example, the bat prompt becomes "build me a smarter cat command for viewing CSV files as tables". Same idea, your own product.

    CarefulRespect the licence. A prompt describes an idea, and ideas are free to build on. Code, names, logos and designs are not. World Monitor is under AGPL-3.0: if you copy any of its actual code into something you share or run as a website, your project has to be open source under the same licence. GitReverse itself has no licence file at all, which means its code is "all rights reserved" even though you can read it. Never reuse someone's product name, branding or screenshots.

  3. Ten to try tonightEach one is well documented, so the prompt comes out sharp, and each has a small core you could build your own version of with an AI coding tool:

    TipFind the licence on any repo: look on the right-hand side of the GitHub page under About, or open the file called LICENSE in the file list.
    TipYou don't need a paid coding tool to start. The prompt works in the free tier of any chatbot, or in your own local AI from Run AI on your PC.
✓
CheckpointYou have one reversed prompt, rewritten with your own twist, pasted into an AI tool or saved in a note.
Stuck? Ask the community

Your first wins

It works. Now do something with it.

Make it your own

Paste this into Claude or ChatGPT with the reversed prompt underneath:

Prompt
Below is a prompt describing an existing open-source project. Rewrite it as a brief for MY OWN new project: keep the core idea, give it a different name, aim it at [your audience], add one feature the original doesn't have, and remove anything that copies the original's branding. Then list the 5 main features I should build first, smallest first.

[paste the GitReverse prompt here]

Understand how a project is built

GitReverse tells you what a project does. To learn how, open the repo on GitHub and paste this into Claude with the README and the file list:

Prompt
I'm a beginner learning from this open-source project. Using the README and the list of files below, explain in plain English: 1) what each main folder is for, 2) which file I should read first and why, 3) the main tools and libraries it uses and what each one does. Don't guess: say clearly if something isn't shown.

[paste the README and file list here]

Undo it cleanly

How to remove everything this mission installed.

Nothing to uninstall: GitReverse runs on its website and you never signed in. Reversed repos stay in the public Library.

Next mission · Reverse engineer anythingFind the secret data feed behind any live website, and turn it into a spreadsheet
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