# Configure Claude Code Sandboxes Safely

Sandbox settings are hard to balance when projects need networks, Docker, or local servers. This skill guides Claude Code policy choices with clear trade-offs.

## Install

```bash
npx skillstore add dnyoussef/sandbox-configurator
```

## Metadata

- Status: approved
- Slug: dnyoussef-sandbox-configurator
- Version: 1.0.0
- Author version: 1.0.0
- Skillstore revision: r1
- Version status: valid
- Tree hash: 55f3875bf06005168e53e54d13d8ec0a4e575da623435e2653934a57bf12e72a
- Author: DNYoussef
- GitHub username: DNYoussef
- License: MIT
- Repository: https://github.com/DNYoussef/ai-chrome-extension/tree/main/.claude/skills/sandbox-configurator
- Ref: c579efd02184f1128d6741d16e6c8d951d7d4208
- Supported tools: Claude, Codex, Claude Code
- Audit status: complete
- Agent install advisory: confirmation\_required
- Manual install advisory: allowed
- Artifact signature: available
- Audit attestation: unavailable
- Human verification: not\_verified
- Risk factors: external\_commands, env\_access
- Quality score: 38
- Quality tier: warning
- Public page: https://skillstore.pages.dev/skills/dnyoussef-sandbox-configurator
- Manifest: https://skillstore.pages.dev/api/skills/dnyoussef-sandbox-configurator/manifest

## Capabilities

- Maps project needs to maximum, balanced, development, or custom sandbox profiles.
- Defines trusted domains for package registries, GitHub, and internal services.
- Explains local binding, Unix socket, Docker, and Git trade-offs.
- Produces a sandbox configuration plan for Claude Code settings.
- Provides validation checks for package installs, Git, Docker, and dev servers.
- Documents security decisions so teams can review the chosen policy.

## Use Cases

- Harden open source contribution workspaces: Use a maximum security profile with public registries only and minimal command exclusions.
- Balance enterprise development access: Choose trusted internal domains, required build variables, and documented exceptions for approved workflows.
- Review local full-stack sandbox needs: Evaluate local servers, Docker, Git, and registry access before granting broader permissions.

## Prompt Templates

### Start with a secure default

```
Configure a maximum security Claude Code sandbox for this project. Allow only package registries and GitHub if they are necessary.
```

### Support a local web app

```
Create a balanced sandbox plan for a full-stack app that needs package installs, Git, Docker, and a local development server.
```

### Fit enterprise network rules

```
Design a sandbox policy for an enterprise repository with internal registries, approved domains, and required build variables. Explain every exception.
```

### Audit an existing policy

```
Review my current Claude Code sandbox policy. Identify unnecessary access, risky exclusions, secret-handling issues, and safer alternatives.
```

## Limitations

- It is guidance only and does not enforce sandbox settings by itself.
- It cannot prove that a runtime sandbox is correctly isolated after setup.
- Development and no-sandbox options can create high risk if approved carelessly.
- Secret handling must be reviewed before adding environment variables.

## Best Practices

- Start with maximum security and add only the access required for the current workflow.
- Document why each trusted domain, local binding rule, socket, and command exclusion is needed.
- Keep secrets out of shared sandbox configuration and use approved secret storage.

## Anti Patterns

- Using no-sandbox mode for unfamiliar code or untrusted repositories.
- Adding broad wildcard domains before confirming the exact services required.
- Excluding Git, Docker, or shell workflows without recording the security impact.

## Security Audit

- Audited at: 2026-07-05T12:46:33.008\+00:00
- Summary: The scanned files are documentation and a process diagram, not executable code. Most static findings are false positives from Markdown fences, inline command names, and example secret variable names, but the skill does include guidance for disabling or weakening sandbox protections.

## Stats

- Views: 230
- Downloads: 6
- Favorites: 0
- Popularity score: 0