How do I install the Code Execution skill?

Run npx skillmds@latest add ariana-dot-dev/code-execution in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Code Execution safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Code Execution?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Code Execution free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Code Execution?

ariana-dot-dev (@ariana-dot-dev) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Code Execution by ariana-dot-dev — Agent Skill

Name: Code Execution
Author: ariana-dot-dev

Code Execution

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.

File contents

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, 80 GB disk.
Cheap per run — per-second billing; a short execution costs cents.

Prefer another tool for: thousands of <500 ms micro-executions (E2B/Modal microVMs) or GPU compute (Modal).

Prereqs

curl -fsSL https://box.ascii.dev/install | sh, then box login "$BOX_API_KEY" --json.

Recipe

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

EU-only; 100 active VMs soft cap; disk-level snapshots only.

Frequently asked questions