> For the complete documentation index, see [llms.txt](https://bluurdoc.bluur.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bluurdoc.bluur.ai/en/functions/working-with-a-document/stages.md).
# Stages
In the document view, there are two main work stages:
**Classification** – a stage in which the user verifies the fields detected by the system, removes incorrect markings, and changes their position and size.
**Anonymization** – a stage in which the user selects the data to be hidden, can add their own anonymization areas, and then anonymizes the document.
Switching between stages is possible from the top bar of the view and from the menu on the left side of the screen.
You can also move to the next stage using the gold button **Select fields**.
Switching between document classification and anonymization.
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# Agent Instructions
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```
GET https://bluurdoc.bluur.ai/en/functions/working-with-a-document/stages.md?ask=&goal=
```
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