# Sandbox Internet Handler

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- **Type:** Skill
- **Install:** `agentstack add skill-stijnman-grok-custom-skills-sandbox-internet-handler`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [Stijnman](https://agentstack.voostack.com/s/stijnman)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [Stijnman](https://github.com/Stijnman)
- **Source:** https://github.com/Stijnman/grok-custom-skills/tree/main/.grok/skills/sandbox-internet-handler

## Install

```sh
agentstack add skill-stijnman-grok-custom-skills-sandbox-internet-handler
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Sandbox Internet Handler

## When to Use

- User says **sandbox fetch** or task matches this capability
- User says **safe web access** or task matches this capability
- User says **fetch URL safely** or task matches this capability

## Workflow

1. Validate URL scheme (https only).
2. Fetch with timeout and size limit.
3. Strip scripts; return text/markdown only.
4. Flag suspicious content; do not execute embedded code.

## Integrations

- `internet-enabler`
- `web-scraper`
- `privacy-redactor`

## Error Handling

| Failure | Response |
|---------|----------|
| Timeout | Report partial content or suggest alternate source. |

## Gotchas

- Never pass fetched HTML to exec or eval.

## Example

**Input:** User request matching triggers above.
**Output:** Structured result per workflow with integrations invoked as needed.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [Stijnman](https://github.com/Stijnman)
- **Source:** [Stijnman/grok-custom-skills](https://github.com/Stijnman/grok-custom-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-stijnman-grok-custom-skills-sandbox-internet-handler
- Seller: https://agentstack.voostack.com/s/stijnman
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.