code-execution-sandbox

name	code-execution-sandbox
description	Safely executes code snippets in a sandboxed environment with timeout, resource limits, and output capture
version	1.0.0
author	go-on-team
tags	["code","execution","sandbox","security","testing","isolation"]
min_go_on_version	1.0.0

Code Execution Sandbox Skill

Safely executes code snippets in an isolated sandbox environment with configurable timeouts, resource limits, and output capture. Supports multiple programming languages and provides structured execution results including stdout, stderr, exit codes, and execution timing.

How It Works

1. Isolation — Each code execution runs in a temporary sandbox directory with restricted filesystem access
2. Timeout enforcement — Hard timeout kills runaway processes after the configured duration
3. Resource limits — Optional memory and CPU limits to prevent resource exhaustion
4. Output capture — Captures stdout, stderr, and exit codes as structured results
5. Language detection — Auto-detects language from code content or accepts explicit language parameter

Input Schema

Parameter	Type	Description
code	string	The source code to execute
language	string	Programming language (python, javascript, rust, go, bash, ruby). Auto-detected if omitted
timeout_secs	integer	Maximum execution time in seconds (default: 30, max: 300)
max_memory_mb	integer	Optional memory limit in megabytes
stdin	string	Optional standard input to pass to the process
arguments	array	Optional command-line arguments for the executed program

Example

{
  "code": "print('Hello from sandbox!')\nfor i in range(5):\n    print(f'Count: {i}')",
  "language": "python",
  "timeout_secs": 10,
  "stdin": ""
}

Example output:

{
  "success": true,
  "stdout": "Hello from sandbox!\nCount: 0\nCount: 1\nCount: 2\nCount: 3\nCount: 4\n",
  "stderr": "",
  "exit_code": 0,
  "execution_time_ms": 45,
  "language": "python",
  "timed_out": false
}