# Configure Secure Sandbox Boundaries

Sandboxed coding agents need clear file, network, and resource boundaries to reduce host exposure. This skill provides a structured workflow for defining policies, creating isolation scripts, testing controls, and documenting the security posture.

## Install

```bash
npx skillstore add dnyoussef/when-configuring-sandbox-security-use-sandbox-configurator
```

## Metadata

- Status: approved
- Slug: dnyoussef-when-configuring-sandbox-security-use-sandbox-configurator
- Skillstore revision: r1
- Version status: missing
- Tree hash: 3f7ac7e9ccef245606fee5e9e4e6a40acb7b7f7d7525fb6a09d3ee139053eeef
- Author: DNYoussef
- GitHub username: DNYoussef
- License: MIT
- Repository: https://github.com/DNYoussef/ai-chrome-extension/tree/main/.claude/skills/specialized-tools/when-configuring-sandbox-security-use-sandbox-configurator
- Ref: 1ffa7643651792ccb4bd3b15d924d2c97edff755
- Supported tools: Claude, Codex, Claude Code
- Audit status: complete
- Agent install advisory: blocked
- Manual install advisory: allowed\_with\_warning
- Artifact signature: available
- Audit attestation: unavailable
- Human verification: not\_verified
- Risk factors: external\_commands, network, filesystem
- Quality score: 38
- Quality tier: warning
- Public page: https://skillstore.pages.dev/skills/dnyoussef-when-configuring-sandbox-security-use-sandbox-configurator
- Manifest: https://skillstore.pages.dev/api/skills/dnyoussef-when-configuring-sandbox-security-use-sandbox-configurator/manifest

## Capabilities

- Documents sandbox security requirements and threat models.
- Defines file system allow lists, deny lists, and temporary workspace rules.
- Creates example scripts for AppArmor, resource limits, firewall rules, and hosts-file blocking.
- Provides security tests for sensitive file access, workspace writes, and network reachability.
- Outlines monitoring steps for audit logs, network connections, and resource usage.
- Produces deployment and security summary documentation for sandbox operations.

## Use Cases

- Prepare a secure coding sandbox: Define file and network boundaries before allowing agent workflows to run commands.
- Document sandbox controls for review: Create requirements, threat models, deployment notes, and a security summary for stakeholders.
- Validate isolation in CI environments: Run controlled tests that check whether sensitive files and blocked domains remain inaccessible.

## Prompt Templates

### Start a sandbox assessment

```
Use this skill to assess the security requirements for my Claude Code sandbox and draft the threat model.
```

### Design file boundaries

```
Use this skill to design file system isolation for a workspace-only sandbox with protected home and system directories.
```

### Configure network isolation

```
Use this skill to create a network isolation plan with trusted domains, blocked protocols, and validation tests.
```

### Review a full sandbox rollout

```
Use this skill to review my sandbox security deployment plan, identify risky commands, and list manual checks before production use.
```

## Limitations

- Requires careful human review before running commands with root or administrator privileges.
- Example scripts may not match every Linux distribution, container runtime, or Claude Code deployment.
- Network allow lists and deny lists must be adapted to each organization.
- The skill does not prove compliance without independent testing and audit evidence.

## Best Practices

- Review every privileged command before execution in a real environment.
- Start with deny-by-default policies and add only required access.
- Run validation tests in an isolated disposable environment before production.

## Anti Patterns

- Running the generated scripts on a workstation without understanding host changes.
- Treating example allow lists as complete for every organization.
- Using sensitive-file access tests outside a controlled sandbox.

## Security Audit

- Audited at: 2026-07-09T04:12:18.679\+00:00
- Summary: The skill has a legitimate defensive purpose, but it includes executable shell workflows that modify host security settings, firewall rules, and privileged system files. Several static findings are false positives because they are deny-list entries or documentation, but sensitive-file tests and privileged configuration commands remain real risks.

## Stats

- Views: 166
- Downloads: 6
- Favorites: 0
- Popularity score: 0