It only supports simple searches like:
find all entries that have the tag
But what I wanted, was something like:
find all entries with the tag
So I decided to first build a CLI program in Rust, ctags-query, that could parse and store [ctags files][ctags-file-format] in a way that would allow querying. It was now possible to build a simple query interpreter to do exactly what I wanted:
$ ctags-query 'work & python & parsing' path/to/fileX:10 path/to/fileY:50 path/to/fileZ:165 $ ctags-query 'work & python & parsing' path/to/fileX:22 path/to/fileY:90
Integrating it into Vim as a plugin just required building a basic Vimscript layer on top of the Rust CLI tool, which is the code that lives in the vim-tagquery repository. I gave it a basic FZF-based search interface.