> For the complete documentation index, see [llms.txt](https://query-expander.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://query-expander.gitbook.io/docs/faq.md).

# FAQ

### Q: Which AI model is used?

You can choose from Claude Sonnet 4.5 / Claude Sonnet 4 / Claude Haiku 4.5. Switch using the dropdown at the top right of the input area.

### Q: Does it support both English and Japanese?

Yes. It automatically detects the input language and outputs in the same language. You can switch the UI language using the button at the top right.

### Q: Is Markdown formatting preserved?

Yes. In Standard and Detailed modes, structures like headings (#, ##) and lists are preserved. In Concise mode, structure may change to prioritize brevity.

### Q: What if the result is too long/short?

Adjust the detail level:

* Want shorter → Concise
* Balanced → Standard
* Want more detail → Detailed

### Q: When should I use Refine Only mode?

It's useful when:

* You don't want to change the text format
* You want to improve regular text, not instructions
* You want to adjust tone (casual/formal)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://query-expander.gitbook.io/docs/faq.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.