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2026-05-27 23:29:53 +01:00

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# OpenSpec Change: enterprise-server-sandbox
- **Change ID**: enterprise-server-sandbox
- **Package**: `@suaveplan/sandbox`
- **Category**: server/infra
- **Target path**: `server/infra/sandbox`
- **Status**: PROPOSED
- **Date**: 2026-04-24
- **Reference spec**: `/mnt/s/web/suaveplan/enterprise/sandbox.md`
---
## Summary
Deliver `@suaveplan/sandbox` on the genesis branch from scratch at enterprise quality. The package provides an isolated code execution sandbox for running untrusted or user-supplied JavaScript/TypeScript snippets. It supports two backends: a `WorkerSandbox` using Bun's `Worker` API (in-process isolation) and a `ProcessSandbox` using `Bun.spawn` for stronger OS-level isolation. Both expose `run(code, context, options): Promise<SandboxResult>` with configurable resource limits (CPU timeout, memory limit, I/O restrictions), structured output capture, and abort signal support. Genesis adds Zod-validated options, `@suaveplan/error` codes, OTel spans, and comprehensive security-oriented tests.
---
## Current-state audit (genesis)
Does not exist on genesis — fresh build.
---
## Available workspace deps on genesis
| Package | Role |
|---|---|
| `@suaveplan/error` (`workspace:^`) | Typed `SANDBOX.*` error codes |
| `@suaveplan/types` (`workspace:^`) | `LoggerLike` |
| `@suaveplan/logger` (`workspace:^`) | Structured logs |
| `zod` (`catalog:forms`) | Options validation |
| `@opentelemetry/api` (`catalog:observability`) | Spans + counters + histograms |
| `tslib` (`catalog:build`) | Runtime helpers |
---
## Public API surface
```ts
interface Sandbox {
run(code: string, context?: SandboxContext, options?: RunOptions): Promise<SandboxResult>
dispose(): Promise<void>
}
function createWorkerSandbox(options?: SandboxOptions): Sandbox
function createProcessSandbox(options?: SandboxOptions): Sandbox
interface SandboxOptions {
timeoutMs?: number // default: 5000
memoryLimitMb?: number // default: 128
allowNetwork?: boolean // default: false
allowFs?: boolean // default: false
logger?: LoggerLike
}
type SandboxContext = Record<string, unknown> // serializable globals injected into sandbox
interface RunOptions {
timeoutMs?: number // override per-run
signal?: AbortSignal
}
interface SandboxResult {
ok: boolean
value?: unknown // returned value (JSON-serializable)
stdout: string
stderr: string
duration: number
exitCode?: number
error?: string
}
type SandboxErrorCode =
| 'SANDBOX_TIMEOUT'
| 'SANDBOX_MEMORY_EXCEEDED'
| 'SANDBOX_EXECUTION_ERROR'
| 'SANDBOX_INVALID_CODE'
| 'SANDBOX_DISPOSED'
function registerSandboxErrorCodes(): void
```
---
## File layout
```text
server/infra/sandbox/
package.json
tsconfig.json
vitest.config.ts
src/
index.ts
error-codes.ts
constants/index.ts
types/
sandbox.types.ts
sandbox.types.md
worker/
worker-sandbox/
worker-sandbox.ts
worker-sandbox.md
worker-sandbox.types.ts
worker-sandbox.test.ts
index.ts
sandbox-worker-script.ts # Worker inner script
process/
process-sandbox/
process-sandbox.ts
process-sandbox.md
process-sandbox.types.ts
process-sandbox.test.ts
index.ts
tests/
security.test.ts
integration.test.ts
```
---
## Impact
Downstream: user-defined rule engines, server-side template execution, AI tool calls. Server-only, Bun runtime required.
**Prerequisites on Verdaccio**: `@suaveplan/error`, `@suaveplan/types`, `@suaveplan/logger`.