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Show HN: Cowork/Codex DOCX plugin. Uses 2x fewer tokens than the docx skill

A new DOCX plugin for Cowork and Codex uses 2-5x fewer tokens than traditional docx skills by converting documents bidirectionally between DOCX and HTML, enabling AI to operate on HTML. The plugin's novel html->docx conversion addresses a gap in existing libraries, and it has been used internally for redlining legal documents.

read1 min views1 publishedJun 18, 2026

Hi HNers,

I'd like to share our DOCX plugin for Cowork and Codex.

It uses 2-5x fewer tokens compared to the traditional docx skill because it doesn't write any code nor execute python/node script. It is also much more reliable.

Our DOCX plugin converts docx<->html bidirectionally. This means AI only operates on HTML. AI is excellent and very efficient when it comes to HTML.

Most libraries (if not all) support docx->html, but none supports html->docx. This is what is novel about our approach. Here's the demo: https://drive.google.com/file/d/1UNlUJYwkNX3NiANDkLLb3UoRSms...

We've been using it in-house for redlining legal documents, and we love it. If you redline docx files, please give it a try: https://github.com/LegalRabbit-AI/legalrabbit-docx-claude-pl...

Comments URL: [https://news.ycombinator.com/item?id=48579116](https://news.ycombinator.com/item?id=48579116)

Points: 3

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