> For the complete documentation index, see [llms.txt](https://xoops.gitbook.io/xoonips-tutorial/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xoops.gitbook.io/xoonips-tutorial/1overview/2.-main-features/22data_classification.md).
# 2.2. Data classification
## 2.2.1. Data classification by item type
XooNIps is designed to support a variety of item types (12 different data formats). Besides, it provides advanced features to apply to emerging formats.
## 2.2.2. Index trees to classify / manage items
The items will be organized by the Index Tree. The Index Tree consists of the following publication areas: Public, Group and Private. Each of the areas consists of keywords so that the items can be logically and effectively sorted.
**Figure 1.3. XooNIps**
## 2.2.3. Data search
The following search options are available on XooNIps.
* Directory search by index trees
* Choose an index tag (public, group and private) to view the item list.
* Keyword search
* Choose a keyword at the default field.
* Detail search
* Specify a search condition on each item type field.
---
# 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://xoops.gitbook.io/xoonips-tutorial/1overview/2.-main-features/22data_classification.md?ask=&goal=
```
`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.