Claude Code 2.1.248 发布：新增受限模式与多项修复

AI 摘要

Anthropic 发布了 Claude Code 2.1.248 版本更新，新增了受限模式、缓存 TTL 设置、自托管运行器标签覆盖等多项功能，并修复了多个与提示缓存、会话管理、MCP 服务器、权限提示等相关的 bug。此次更新提升了 Claude Code 的安全性、稳定性和用户体验。

正文节选

- Added `--restricted` (or `CLAUDE_CODE_RESTRICTED=1`): removes the built-in tools that run commands or code and `WebFetch` (unless named in `--tools`), keeps file tools inside the working directory, refuses `bypassPermissions`, and ignores user, project and local settings files - Added `experimental.cacheTtl` (`"5m"` or `"1h"`) to agent frontmatter: a per-agent prompt cache TTL used when no subagent TTL setting is configured - Added `claude self-hosted-runner --client-label <label>` (or `SELF_H

发布时间：—

抓取时间：2026-09-07 03:46

来源机构：Anthropic