code-execution SKILL.md skillB
code-execution from ariana-dot-dev/cloud-sandbox-vm-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ariana-dot-dev/cloud-sandbox-vm-skills/code-execution@git:20261109.2f1d005Pins git:20261109.2f1d005 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ariana-dot-dev/cloud-sandbox-vm-skills
- Path
skills/code-execution/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261109.2f1d005, committed Nov 9, 2026
- First version recorded
- Jun 13, 2026
- Size
- 1,710 bytes
- Repository stars
- 3
- License
- MIT
Execute code in a real cloud machine (code-interpreter style) — a full root Ubuntu VM with Python, Node, Go, Rust and every major runtime preinstalled, not a constrained isolate. Per-second billing makes a run cost cents. Use to run scripts, data jobs, or generated code that needs real packages, subprocesses, or Docker.
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
# Code execution (Box) Use this when you need to **actually run code** and get its output: a Python data job, a Node script, a build, or generated code that does `pip install`, spawns subprocesses, or writes files. A real machine (vs a JS isolate or limited code-interpreter) means those operations succeed. ## Why Box - **Every runtime preinstalled** — Python 3, Node/Bun/Deno, Go, Rust, Java, .NET, Ruby, PHP, C/C++. - **Real OS** — `apt install`, Docker, subprocesses, 51 GB disk (default size). - **Cheap per run** — $0.036/h billed per second, so a short run costs cents of VM time. On the $20 plan, 200 starts a day are included; each extra start costs $0.03-$0.07. Prefer another tool for: many short sub-second executions a day (E2B/Modal) or GPU compute (Modal). ## Prereqs `curl -fsSL https://box.ascii.dev/install | sh`, then `box login "$BOX_API_KEY" --json`. ## Recipe ```bash box_id="$(box new --json | jq -r 'select(.event == "ready") | .id')" box ssh "$box_id" -- "cat > /tmp/main.py" < ./main.py box ssh "$box_id" -- "cd /tmp && timeout 120 python3 main.py" box delete "$box_id" --json ``` ## Limits …
Read the whole file at its exact version.
How to install
mdr add ariana-dot-dev/cloud-sandbox-vm-skills/code-execution@sha256:f7c862c97530e03fThe line at the top of this page pins the label git:20261109.2f1d005, 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_wcu4xzlvzamnhhsw)
0 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 13, 2026 and Nov 9, 2026, about one every 149 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261109.2f1d005 latest | 2026-11-09 | 2f1d005 | 1,710 B | B | view · diff |
| git:20260613.95ab83b | 2026-06-13 | 95ab83b | 1,454 B | B | view |
Audit of the latest version
- fail: No curl or wget piped into a shell (matched: curl -fsSL https://box.ascii.dev/install | sh)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1710 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
ariana-dot-dev/cloud-sandbox-vm-skills · 3 stars · license MIT · pushed 2026-11-09 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_wcu4xzlvzamnhhsw GET https://markdownregistry.com/api/v1/resolve?ref=ariana-dot-dev/cloud-sandbox-vm-skills/code-execution GET https://markdownregistry.com/api/v1/blob/f7c862c97530e03fa78792424b2be4b581f688bb21366b6add215ae0c2b1bf09
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.