self-hosted-sandboxes-memory changedmanaged-agents/self-hosted-sandboxes-memory
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4444## Requirements
4545
4646* **A worker that mounts memory stores:** Use `ant` CLI 1.33.0 or later, or `EnvironmentWorker` from the Python, TypeScript, or Go SDK.
47* **A POSIX filesystem:** Windows hosts are not supported, because the worker requires `O_NOFOLLOW` when it opens memory files. A case-sensitive filesystem is recommended, so that memory paths that differ only in case do not collide. macOS volumes are case-insensitive by default, so such paths collide there.
47* **A POSIX filesystem:** Windows hosts are not supported, because the worker requires `O_NOFOLLOW` when it opens memory files. Anthropic recommends a case-sensitive filesystem, so that memory paths that differ only in case do not collide. macOS volumes are case-insensitive by default, so such paths collide there.
4848* **A writable `/mnt/memory` directory:** See [Prepare the host](https://platform.claude.com/docs/en/managed-agents/self-hosted-sandboxes-memory#prepare-the-host). On macOS, see [Prepare a macOS host](https://platform.claude.com/docs/en/managed-agents/self-hosted-sandboxes-memory#prepare-a-macos-host).
4949* **The work item’s secret:** If your own code launches the worker, [forward the work item’s secret](https://platform.claude.com/docs/en/managed-agents/self-hosted-sandboxes-workers#forward-the-work-items-secret) to it.
5050
5151<Note>
52 Memory stores cannot be attached to sessions on self-hosted environments on [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws).
53
54 On [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/anthropic-managed), memory stores aren’t supported for sessions on self-hosted environments.
52 Memory stores are not available for sessions on self-hosted environments on [Claude Models on Google Cloud (Anthropic managed)](https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/anthropic-managed) or [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws).
5553</Note>
5654
5755## Prepare the host
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