@agentskit/sandbox

Let agents write and run code safely — in isolated cloud VMs, not on your machine.

Why

• Code generation that actually executes — agents can write, run, and iterate on code without you worrying about what they'll do to your filesystem or OS
• E2B cloud VMs out of the box — each execution runs in an isolated environment with configurable timeouts, no network by default, and a 50MB memory cap
• Bring your own backend — the SandboxBackend interface is 2 methods; plug in Docker, Firecracker, or any custom isolation layer

Install

npm install @agentskit/sandbox @e2b/code-interpreter
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Quick example

import { createRuntime } from '@agentskit/runtime'
import { anthropic } from '@agentskit/adapters'
import { sandboxTool } from '@agentskit/sandbox'

const runtime = createRuntime({
  adapter: anthropic({ apiKey: process.env.ANTHROPIC_API_KEY, model: 'claude-sonnet-4-6' }),
  tools: [sandboxTool({ apiKey: process.env.E2B_API_KEY })],
})

const result = await runtime.run('Write and run a Python script that generates a Fibonacci sequence up to 100')
console.log(result.content)
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Next steps

• Combine sandbox with other tools from @agentskit/tools on the same createRuntime instance
• For browser or React flows, keep the same tool definitions — they follow @agentskit/core ToolDefinition

Ecosystem

Docs

Full documentation