[koakuma-chan]

I know because this is how an AI generated project looks. Clearly AI generated README, "clean" code, the way files are named, etc.

[magackame]

Not sure myself. Commit messages look pretty human. But the emojis in readme and comments like "// Re-export key structs for easier access", "# Add any test-specific dependencies here if needed" are sus indeed.

[cmrdporcupine]

To me it looks like LLM generated README, but not necessarily the source (or at least not all of it).

Or there's been a cleaning pass done over it.

[koakuma-chan]

I think pretty clearly the source is also at least partially generated. None the less, just a README like that already sends a strong signal to stop looking and not trust anything written there.