Claude Code 2.1.281：网关增强与大量稳定性修复
原标题：2.1.281
AI 摘要
Claude Code 发布 2.1.281 版本更新，主要围绕 Claude apps gateway 增强、MCP 协议支持与大量稳定性修复。新增内容包括 Bedrock 上游的 assume_role 与 guardrail 配置、桌面策略块支持、遥测资源属性、settings.json 中隐藏提交与 PR 归属的选项，以及 MCP URL 模式 elicitation 和插件校验中的 MCP 检查。同时修复了会话恢复、提示缓存丢失、代理流中断、重试逻辑、权限提示与工具调用等数十项问题。
正文节选
- Added Claude apps gateway support for newer Claude Desktop keys in `desktop` policy blocks, including `blockReadsOutsideWorkingDirectories` and `disableBypassPermissionsMode` - Added `assume_role` on Claude apps gateway Bedrock upstreams: the gateway calls Bedrock as an IAM role it assumes through STS, in another AWS account if needed, optionally one session per developer - Added `guardrail: {id, version}` on Claude apps gateway Bedrock upstreams to apply an Amazon Bedrock guardrail to every r