REA Enables Coding Agents to Inspect Native Binaries, JavaScript Apps, and Browser Runtimes

REA is a tool designed to enable coding agents to inspect the internals of software, including native binaries, JavaScript/Electron applications, and browser runtimes. The article explains how REA provides agents with access to instructions, decompiled code, and call relationships, allowing them to explain logic and reconstruct functionality. Two primary examples are detailed: first, inspecting the Chrome dinosaur game to recover its speed rule (starting at 6, accelerating by 0.001 per update up to a max of 13) and rebuilding a version with adjustable speed; second, inspecting Windows Calculator (version 11.2504.15.0) to understand why '200 + 10%' equals 220, revealing that the percentage is applied to the previous number for addition but converted to a decimal for multiplication. The tool supports various targets, including native executables, Electron apps, and live browser activity, allowing agents to reconstruct functionality or debug issues.