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# How to Build a Knowledge Base an AI Agent Can Use
- URL: https://blog.jestor.com/build-knowledge-base-for-ai-agent/
- Published: 2026-09-17T22:38:06.000Z
- Updated: 2026-09-17T22:38:06.000Z
- Author: Bruno Bannach

To **build a knowledge base for an AI agent**, write for someone answering a question rather than for someone reading front to back. Documentation written as a narrative answers questions poorly.

## What makes documentation hard to answer from

The problem is usually structure rather than content.

- Long documents where one answer is buried in context
- Policies described historically rather than stated
- Exceptions mentioned in passing rather than as rules
- Several documents covering the same topic differently

## How to structure it

- **Answer-shaped sections**, each addressing one question
- **Explicit rules**, stated rather than implied
- **Exceptions named**, with the conditions that trigger them
- **One authoritative document** per topic
- **Current content**, since the agent will repeat whatever is there

## How to set it up in Jestor

1. Write the documentation as a document in **Jestor**, using headings per topic.
2. Attach it to the agent as its knowledge base — no table is required.
3. Keep one authoritative document per topic rather than several overlapping ones.
4. Update the document when the policy changes; the answers follow.
5. Test with the questions people actually ask, not the ones you expect.

## Why choose Jestor for maintainable AI knowledge?

**Jestor** lets the same document serve as reading material for people and as the agent's knowledge base, so maintaining one keeps both current.

The agent answers in the language the question was asked in, even when the documentation is written in another — which means one document can serve teams operating across markets.

## Frequently Asked Questions

### Does the agent need a table?

No, it can answer purely from attached documents. See [jestor.com](https://jestor.com/?ref=blog.jestor.com).

### How do I update what it knows?

By updating the document.

### Must documentation be in the user's language?

No, the agent answers in the language asked.

## Video Tutorial: Step by Step

Check out other practical tutorials on the Jestor YouTube channel.

## Get to know Jestor

With **Jestor**, you can automate workflows, connect teams, and build internal systems your way — all without code and powered by **AI**. Discover Jestor at [jestor.com](https://jestor.com/?ref=blog.jestor.com) and see how to take your company's operations to a new level of efficiency and control.