# Overview - Documentation

> For the complete documentation index, see [llms.txt](/llms.txt). Markdown is available with `Accept: text/markdown` and `.md` URL variants.

Source: /docs/guides/sandbox-filesystem

# Overview

Each sandbox has a completely isolated filesystem. Currently, we provide fixed 20 GB storage space for sandboxes.
Next, we will demonstrate how to operate the sandbox filesystem using the SDK, including:

- [Read & write files](/docs/guides/sandbox-filesystem-read-write)

- [File & directory metadata](/docs/guides/sandbox-filesystem-metadata)

- [Watch sandbox directory for changes](/docs/guides/sandbox-filesystem-watch)

- [Upload data to sandbox](/docs/guides/sandbox-filesystem-upload)

- [Download data from sandbox](/docs/guides/sandbox-filesystem-download)

- [Mount object storage bucket](/docs/guides/sandbox-mount-cloudstorage)

Last modified on June 5, 2026