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HomeDocsClaude Developer Platform 12 Oct 2026
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self-hosted-sandboxes-reference changedmanaged-agents/self-hosted-sandboxes-reference

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5353## Sandbox filesystem
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55| Path | Contents |
56| -------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
57| `/workspace` | The system default working directory for tool execution and skill download. If you use a different working directory, update your agent's system prompt so Claude can locate the skill files. |
58| `<workdir>/skills/<name>/` | The agent's downloaded skills. |
59| `/mnt/memory/<store>/` | One directory per attached memory store, at the store's `mount_path` (for example, `/mnt/memory/user-preferences/`). The worker creates these directories when it claims the session and removes them when the session ends. |
55| Path | Contents |
56| -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
57| `/workspace` | The system default working directory for tool execution and skill download. If you use a different working directory, update your agent's system prompt so Claude can locate the skill files. |
58| `<workdir>/skills/<name>/` | The agent's downloaded skills. |
59| `/mnt/memory/<store>/` | One directory per attached memory store, at the store's `mount_path` (java, php: `mountPath`; csharp, go: `MountPath`) (for example, `/mnt/memory/user-preferences/`). The worker creates these directories when it claims the session and removes them when the session ends. |
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6161On self-hosted environments the session's system prompt omits the `/mnt/session/outputs` instruction used on Anthropic-managed sandboxes. Final deliverables land wherever the agent writes them in your sandbox filesystem, typically under the working directory.
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