I agree! I'm sort of exploring "programmable filesystem" concept (using FuseFS) (for some notes, see [1]).
Re: ordered files: depends on FS. e.g. filesystems which use B+ trees will tend to have files (in directories) in lexical order. So in some cases you may not need a new FS:
echo 'for f in *.txt; do cat "$f"; done' > doc.sh; chmod +x doc.sh
=> `doc.sh` in dir produces 'documents' (add newlines / breaks as needed, or add piping through Markdown processor); symlink to some standardized filename 'Process', etc...That said... wouldn't it be nice to have ridiculous easily pluggable features like
echo "finish this poem: roses are red," > /auto-llm/poem.txt; cat ..
:)[1]: chaotic notes: https://kfs.mkj.lt/#welcome (see bullet point list below)