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Achin Bansal
Achin Bansal

Posted on • Originally published at gridthegrey.com

First Look: OfficeCLI Ships Open-Source Microsoft Office Automation Suite for AI Agents

Forensic Summary

OfficeCLI is an open-source, single-binary tool that enables AI agents to programmatically read, write, and automate Microsoft Word, Excel, and PowerPoint files without requiring a local Office installation. This dramatically expands the file-system attack surface for agentic AI systems, enabling prompt injection via document content, automated exfiltration of sensitive Office files, and weaponisation of documents as a persistent injection vector. Defenders operating AI agent pipelines that touch file systems must now treat any Office document as a potential adversarial input channel.


Read the full technical deep-dive on Grid the Grey: https://gridthegrey.com/posts/first-look-officecli-ships-open-source-microsoft-office-automation-suite-for-ai/

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