This is just a fun idea I had of how to use all that tree-sitter POWA:
https://gist.github.com/misutoneko/34d3d9478036773a24ae7ba6386ec211

So it's a bit similar to binwalk or the file utility, but for C++ source.
You just give it a filename as a parameter and you'll get a set of strings as output.
The strings give you a very compressed view of tree-sitter info (a list of whatever C++ features were found).

C++ is huge at this point and with lots of legacy code, so could be useful to orient youself in an unknown codebase.