# Claude Code v2.1.91 版本更新

- 来源：Claude Code：GitHub Releases（RSS）
- 作者：ashwin-ant
- 发布时间：2026-04-03 07:45
- AIHOT 链接：https://aihot.virxact.com/items/cmnw8fk5600asslcjlxhrb6gh
- 原文链接：https://github.com/anthropics/claude-code/releases/tag/v2.1.91

## AI 摘要

Claude Code v2.1.91 发布，支持 MCP 工具结果最大 500K 字符不截断，新增禁用技能内联 shell 执行选项，插件可打包 bin/ 目录可执行文件。修复了 --resume 转录链断裂、远程会话计划模式丢失、cmd+delete 快捷键等 bug，并优化了 ANSI 剥离性能。

## 正文

What's changed

Added MCP tool result persistence override via _meta["anthropic/maxResultSizeChars"] annotation (up to 500K), allowing larger results like DB schemas to pass through without truncation

Added disableSkillShellExecution setting to disable inline shell execution in skills, custom slash commands, and plugin commands

Added support for multi-line prompts in claude-cli://open?q= deep links (encoded newlines %0A no longer rejected)

Plugins can now ship executables under bin/ and invoke them as bare commands from the Bash tool

Fixed transcript chain breaks on --resume that could lose conversation history when async transcript writes fail silently

Fixed cmd+delete not deleting to start of line on iTerm2, kitty, WezTerm, Ghostty, and Windows Terminal

Fixed plan mode in remote sessions losing track of the plan file after a container restart, which caused permission prompts on plan edits and an empty plan-approval modal

Fixed JSON schema validation for permissions.defaultMode: "auto" in settings.json

Fixed Windows version cleanup not protecting the active version's rollback copy

/feedback now explains why it's unavailable instead of disappearing from the slash menu

Improved /claude-api skill guidance for agent design patterns including tool surface decisions, context management, and caching strategy

Improved performance: faster stripAnsi on Bun by routing through Bun.stripANSI

Edit tool now uses shorter old_string anchors, reducing output tokens