AWS 发布 Strands Decider 2B 与 Strands Box 智能体开发工具
原标题：AWS Introduces Strands Decider 2B and Strands Box for AI Agent Development
AI 摘要
AWS 推出两个面向 AI 智能体开发的开源项目：Strands Decider 2B 和 Strands Box。Strands Decider 2B 是一个 20 亿参数的小模型，基于 Qwen3.5-2B 改造，用指针头替代语言模型头，用于在预定义选项间做决策，支持模型路由、工具选择、分类、护栏和上下文管理，并已开源权重、训练数据和脚本。Strands Box 处于开发者预览阶段，结合操作系统级隔离与开源策略语言 Dogwood，为智能体执行提供沙箱，支持 shell、Python、MCP 工具、文件系统和网络访问的策略控制。两者将 Strands 生态从编排扩展到决策与执行控制。
正文节选
AWS has introduced two open-source projects for AI agent development: Strands Decider 2B, a small model designed to make decisions within agent workflows, and Strands Box, a sandbox for controlling agent execution. Both projects address different aspects of building agents that use tools, execute code, and interact with external systems. Strands Decider 2B is a two-billion-parameter model designed to select between predefined options rather than generate lengthy text responses. It supports tasks