> For the complete documentation index, see [llms.txt](https://docs.codebattles.ru/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.codebattles.ru/en_v3/how-the-system-works/bezopasnost.md).
# Security
The Codebattles platform ensures the security of executable programs using several tools.
### Docker
[**Docker**](https://www.docker.com) - an application for containerization.
The checker application runs in an isolated container. The checkers' container network is launched in isolation from the general subnet.
### Bubblewrap
[**Bubblewrap**](https://github.com/containers/bubblewrap) - a sandbox for applications. Used, for example, in [Flatpak](https://flatpak.org/)
Within Docker, a sandbox with network and file system isolation is used.
***
Using the above methods of protection from malicious actors, one can be confident in the system's security.
---
# 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:
```
GET https://docs.codebattles.ru/en_v3/how-the-system-works/bezopasnost.md?ask=
```
The question should be specific, self-contained, and written in natural language.
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.