I haven’t looked under the hood here but to make simple text replacement via command line is an LLM even required? A human driven command line tool to do basic substitution on batches of files reliably would be amazing.

there is a python library for docx handling. my thinking was the use case for this was for larger scale automations / document processing.

sed, awk. docx is just zipped xml.

Not really - if you wanna do a text replacement you can extract it yourself and do some work (or just use this CLI). The library is designed for longer workloads.

you've never dealt with ooxml.