---
title: "Isolating untrusted instructions"
description: "How can you keep an untrusted document as data during tool use?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T58.06/"
topicId: "T58.06"
---

> Coming soon — this article is being prepared. Below are its question, intended outcome, and place in the story.

## The question

How can you keep an untrusted document as data during tool use?

## What we will work through

Keep an untrusted document as data during tool use.

## Before you begin

Previously covered: Prompt injection through external content; An agent tool contract.

- [Prompt injection through external content](/en/articles/topics/T58.05/)
- [An agent tool contract](/en/articles/topics/T57.02/)