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E2b Sandbox Runtime

by Tang Weigang · GitHub ↗ · v0.1.0 · MIT-0
cross-platform ⚠ suspicious
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Install in OpenClaw
/install e2b-sandbox-runtime
Description
E2B：在隔离 micro-VM 里执行 AI 生成代码的云端 runtime。Python / TS SDK 通过 Connect-RPC 调用 envd 守护进程（Rust + protobuf）。 E2B: cloud-side runtime for executing AI-generated code...
README (SKILL.md)

这个 skill 适合什么用户？能做哪些任务？

概览

E2B 是在隔离 micro-VM 里执行 AI 生成代码的云端 runtime（github.com/e2b-dev/E2B）。Python / TypeScript SDK 是纯 RPC 客户端，通过 Connect-RPC 对接 envd 守护进程（Rust + protobuf，托管在独立的 e2b-dev/infra repo）。

SDK 接口为 2x2：{Sandbox, AsyncSandbox} × {Template, AsyncTemplate}。Sandbox / AsyncSandbox 各带四个子模块作为实例属性：files: Filesystem / comman...

Doramagic 晶体页: https://doramagic.ai/zh/crystal/e2b-sandbox-runtime

知识规模

  • 42 条约束 (3 fatal + 39 non-fatal)
  • 上游源码: e2b-dev/E2B @ commit 557b723c
  • 蓝图 ID: finance-bp-141

用法

Host AI（Claude Code / Cursor / OpenClaw）读 references/seed.yaml，按其中的：

  • intent_router 匹配用户意图
  • architecture 理解项目架构
  • constraints 应用 anti-pattern 约束
  • business_decisions 参考核心设计决策

FAQ 摘要

这个 skill 适合什么用户？能做哪些任务？

适合需要让 LLM 安全执行任意代码的工程师：AI 助手跑 Python / shell、数据分析 sandbox、教学环境。每个 sandbox 是隔离 micro-VM，泄露面限制在单个 sandbox 内。Jupyter 内核 / 富输出场景应改用 e2b-code-interpreter。访问 doramagic.ai/r/e2b 查看完整用例。

需要准备什么环境？依赖什么？

Python 3.9+ 或 Node 18+。E2B_API_KEY 给 SDK runtime（创建 / 控制 sandbox）；E2B_ACCESS_TOKEN 给 CLI 鉴权（template build / dashboard）。可选 E2B_DOMAIN（默认 e2b.app）。出站 HTTPS 到 *.e2b.app。

会踩哪些坑？这个 skill 怎么防护？

本 skill 内置 42 条约束（3 条 fatal）。典型踩坑：(1) TS 用户忘 kill()——TS Sandbox 没有 Symbol.dispose 也没自动清理，sandbox 持续计费到超时；(2) 通过 envs={...} 传 API key 会被 commands.list() 泄露给持有 sandbox 句柄的人；

完整文档: 见 references/seed.yaml (v6.1 schema). 浏览页: https://doramagic.ai/zh/crystal/e2b-sandbox-runtime

Usage Guidance
This skill appears to be a knowledge/blueprint for an E2B sandbox runtime but its metadata omits credentials and filesystem/egress expectations that the SKILL.md/seed.yaml explicitly describe. Before installing or enabling it: (1) ask the publisher for the homepage/repository and for a clear list of required environment variables (E2B_API_KEY, E2B_ACCESS_TOKEN, E2B_DOMAIN) to be declared in registry metadata; (2) do not provide real production API keys until you confirm the author and trust the runtime — use a limited or test key instead; (3) be aware the instructions tell the agent to run local commands, inspect ZVT_HOME and other paths, and may start long-running servers/ports — run first in an isolated/test environment; (4) ask the publisher to update the skill metadata to declare required env vars and any workspace write operations, and to justify why the agent must re-read seed.yaml and run the listed preconditions; (5) if you are uncomfortable with autonomous actions, disable autonomous invocation or restrict the skill until provenance and required privileges are clarified.
Capability Analysis
Type: OpenClaw Skill Name: e2b-sandbox-runtime Version: 0.1.0 The skill bundle provides a runtime for the E2B sandbox and ZVT quant trading library. It is exceptionally security-conscious, containing numerous explicit constraints and warnings (e.g., e2b-C-002, e2b-C-029, and e2b-C-033 in references/seed.yaml) designed to prevent credential leakage, shell injection, and unauthorized network egress. The high-risk capabilities, such as shell execution and network access, are inherent to the stated purpose of an isolated code execution environment and are accompanied by defensive instructions for the AI agent.
Capability Tags
cryptocan-make-purchasesrequires-oauth-tokenrequires-sensitive-credentials
Capability Assessment
⚠ Purpose & Capability
The skill is presented as a cloud-side sandbox runtime knowledge artifact, which can plausibly require control-plane credentials (E2B_API_KEY) and domain access. However the registry metadata lists no required environment variables or config paths while SKILL.md and seed.yaml explicitly reference E2B_API_KEY, E2B_ACCESS_TOKEN, optional E2B_DOMAIN, and outbound HTTPS to *.e2b.app. That discrepancy (declaring none but documenting secrets) is incoherent and unexplained.
⚠ Instruction Scope
SKILL.md and the included seed.yaml instruct the host AI to re-read seed.yaml on every behavioral decision, run precondition shell/python checks (e.g., import zvt, check ZVT_HOME and file-system write permissions), and follow an execution protocol that writes/uses host_workspace scripts/skills/trace paths. The instructions therefore direct the agent to run local commands, inspect environment and filesystem, and (per human_summary) handle long-running servers and port exposure — actions broader than a passive 'knowledge' skill and not declared in metadata.
✓ Install Mechanism
No install spec or code files are present; this is instruction-only. That lowers installation risk because nothing is downloaded or written by the skill package itself.
⚠ Credentials
Metadata shows no required env vars and sets primaryEnv to the nonstandard 'knowledge', yet SKILL.md documents E2B_API_KEY and E2B_ACCESS_TOKEN (and optional E2B_DOMAIN) and warns about passing API keys into sandboxes. Requiring API keys and telling the agent to run local checks and potentially expose ports is a materially higher privilege request than what the registry declares.
ℹ Persistence & Privilege
The skill does not request 'always: true' and leaves autonomous invocation enabled (platform default). It expects the host to use workspace paths (scripts_path, skills_path, .trace/), which implies the agent will create/read workspace files during execution. That behavior is plausible for this blueprint but should have been declared up-front; combined with missing credential declarations this increases risk.
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install e2b-sandbox-runtime
  3. After installation, invoke the skill by name or use /e2b-sandbox-runtime
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v0.1.0
E2B AI code sandbox skill — 42 constraints / 3 fatal. 2x2 surface (Sandbox/AsyncSandbox × Template/AsyncTemplate).
Metadata
Slug e2b-sandbox-runtime
Version 0.1.0
License MIT-0
All-time Installs 0
Active Installs 0
Total Versions 1
Frequently Asked Questions

What is E2b Sandbox Runtime?

E2B：在隔离 micro-VM 里执行 AI 生成代码的云端 runtime。Python / TS SDK 通过 Connect-RPC 调用 envd 守护进程（Rust + protobuf）。 E2B: cloud-side runtime for executing AI-generated code... It is an AI Agent Skill for Claude Code / OpenClaw, with 68 downloads so far.

How do I install E2b Sandbox Runtime?

Run "/install e2b-sandbox-runtime" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is E2b Sandbox Runtime free?

Yes, E2b Sandbox Runtime is completely free, licensed under MIT-0. You can download, install and use it at no cost.

Which platforms does E2b Sandbox Runtime support?

E2b Sandbox Runtime is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created E2b Sandbox Runtime?

It is built and maintained by Tang Weigang (@tangweigang-jpg); the current version is v0.1.0.

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