{
  "id": 13279521,
  "title": "REA Reverse – Engineer Anything",
  "url": "https://urgent.news/2026/10/10/rea-reverse-engineer-anything",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-10T00:37:07.000Z",
  "source": {
    "name": "Hacker News",
    "slug": "hacker-news",
    "url": "https://rea.tools/"
  },
  "original_language": "en",
  "account": "REA is a powerful tool that allows agents to inspect programs and explain their inner workings. To use REA, first install it with npx rea-agents@latest setup, then connect it to your coding agent. By examining the program itself, you can understand a feature well enough to explain it, change it or rebuild it.\n\nFor example, if you're curious about why Calculator shows 220 for 200 plus 10%, REA can help you figure it out. The process involves inspecting the calculator's update function and speed settings, then using that rule to create a new game with adjustable speed. By running the speed check, you'll find that after 4,000 updates, the speed is 10.0, and after 10,000 updates, it reaches 13.0.\n\nREA can also help you understand and modify the functionality of other programs. For instance, it can be used to recover the rules for the addition and multiplication operations in Windows Calculator. By using REA to inspect the calculator's % button, you can build a small calculator that employs both addition and multiplication.\n\nMoreover, REA can be utilized to clone websites, reconstruct games from their executables, and analyze the gameplay logic in various formats such as C. It can also map modules, routes, IPC, and native dependencies from an application folder or ASAR archive. Additionally, REA allows you to capture and compare selected browser or process activity across multiple runs.",
  "summary": null,
  "key_points": [
    "REA tool inspects programs to explain inner workings",
    "Install REA with npx rea-agents@latest setup",
    "Use REA to modify, rebuild, or clone programs"
  ],
  "editors_take": "This development empowers coding agents to gain a deeper understanding of complex programs, enabling them to modify, rebuild, or even clone existing applications and websites with greater ease and precision.",
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}