sandbox-internet-handler SKILL.md skillA
sandbox-internet-handler from stijnman/grok-custom-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add stijnman/grok-custom-skills/sandbox-internet-handler@v1.2.0Pins v1.2.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- stijnman/grok-custom-skills
- Path
.grok/skills/sandbox-internet-handler/SKILL.md- Versions recorded
- 2
- Latest version
- v1.2.0, committed Aug 14, 2026
- First version recorded
- Jun 24, 2026
- Size
- 1,270 bytes
- Repository stars
- 14
- License
- MIT
Fetches web content in a sandboxed, read-only manner. Use for: sandbox fetch, safe web access, fetch URL safely, `internet-enabler`.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# 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.
Read the whole file at its exact version.
How to install
mdr add stijnman/grok-custom-skills/sandbox-internet-handler@sha256:265a089711118027The line at the top of this page pins the label v1.2.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bgemjrbomhoylbx2)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 24, 2026 and Aug 14, 2026, about one every 51 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.2.0 latest | 2026-08-14 | abe185a | 1,270 B | A | view · diff |
| v1.1.0 | 2026-06-24 | 5c9866b | 1,370 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1270 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
stijnman/grok-custom-skills · 14 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bgemjrbomhoylbx2 GET https://markdownregistry.com/api/v1/resolve?ref=stijnman/grok-custom-skills/sandbox-internet-handler GET https://markdownregistry.com/api/v1/blob/265a0897111180279606f6585487de8c0140e903dbcae18b4771b922c1e659b2
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.