Claude Code 2.1.9 发布：新增 MCP 配置与多项修复

AI 摘要

Claude Code 2.1.9 版本发布，新增了 MCP 工具搜索自动启用阈值配置、计划文件存储目录自定义、外部编辑器支持、会话 URL 归因、PreToolUse 钩子返回额外上下文以及技能会话 ID 替换等功能。同时修复了并行工具调用、MCP 服务器重连挂起和终端挂起等问题。

正文节选

- Added `auto:N` syntax for configuring the MCP tool search auto-enable threshold, where N is the context window percentage (0-100) - Added `plansDirectory` setting to customize where plan files are stored - Added external editor support (Ctrl+G) in AskUserQuestion "Other" input field - Added session URL attribution to commits and PRs created from web sessions - Added support for `PreToolUse` hooks to return `additionalContext` to the model - Added `${CLAUDE_SESSION_ID}` string substitution for

发布时间：—

抓取时间：2026-09-07 03:47

来源机构：Anthropic