Study focused REA cases with attributed evidence and clear validation limits.
A case study is most useful when it shows a narrow question, the evidence gathered and the check that made the conclusion credible. These REA examples cover an Android time-code calculation, a CTF checker, a game sound function, an Electron clipboard bridge and a PC-98 game helper. The targets and tools differ, but the pattern of tracing one behavior is reusable.
The case outcomes on these pages are reported by the original project. AI Craft Pad summarizes the evidence path and its limits; it has not rerun the binaries, apps or historical compiler checks. Follow each official source for the complete investigation and distinguish a validated function from a claim about an entire product.
The official REA Aegis showcase follows a six-digit login-code calculation through an Android APK and rebuilds a small clock-controlled example. It is a useful model for moving from a feature question to methods, constants and a reference test. The stated validation belongs to the showcase authors; AI Craft Pad has not rerun the APK analysis or demo.
The official REA DownUnderCTF showcase traces a small flag checker from its prompt and result strings to the accepting conditions. It demonstrates a question-driven sequence: locate the check, translate constraints and test a candidate against the original challenge. The success claim is from the project case narrative; AI Craft Pad did not run the binary.
The official DX-Ball REA showcase examines how a brick position becomes a stereo sound-pan value in a Windows game executable. Its strongest lesson is that an incomplete pseudocode view can be repaired by reading the caller, instructions and stored constants. The project's differential and compiler checks concern a specific function and checkpoint, not a fully rebuilt game.
The official REA Notion case traces a clipboard request through an Electron app's page API, preload bridge, IPC channel and main-process writer. It shows how to follow one cross-process behavior through bundled JavaScript rather than stopping at a convenient wrapper name. The page documents a specific desktop package; AI Craft Pad has not independently reproduced the trace.
The official REA Touhou 4 showcase studies an aimed bullet-ring angle helper in a PC-98 DOS game. It is a focused example of combining assembly inspection with behavior reconstruction and compiler-oriented checks. Read the original case for the specific function and validation boundary; a successful reconstruction of this helper does not imply that the entire game has been recovered.