Introduction Word documents are everywhere. In domains such as legal, finance, and healthcare, the Word document is the deliverable. Contracts, regulatory submissions, and audit reports get drafted, redlined, and signed in .docx, and companies usually have libraries of Word templates they work with on a regular basis. That work is increasingly shifting to agents. Microsoft Copilot and Claude in Word have made in-document AI mainstream, while a growing number of vertical agents; particularly in legal tech—need to interact with .docx files. However, AI agents are still struggling to do great wor