Conclusion first: a free model drafted a working C++17 directory hasher in one pass. The draft compiled, ran, and was still wrong. A differential test against standard system tools found three real bugs before the tool ever touched a production cache.
Source: [Dev.to](https://dev.to/datacpp_8185/case-study-a-free-model-wrote-a-c-tree-hasher-the-reference-oracle-found-three-bugs-dm1)