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Intelligent interrupt layer for Claude — learns when to ask, when to proceed

Project description

Relay

Relay 是一个 Claude Code 智能中断层。它通过 hook 拦截每次工具调用,结合历史审批记录和风险评估,自动决定哪些操作直接执行、哪些需要暂停等你确认,并在需要确认时发送桌面通知。

核心价值: 让 AI 任务在后台跑,只在真正需要你决策时才打断你。

English | 日本語 | 한국어

工作原理

Claude 准备执行工具(Write、Bash、Edit 等)
    ↓
PreToolUse hook 触发 → relay hook pre
    ↓
查询历史批准率 + 评估风险等级
    ↓
allow → 工具直接执行,自动记录为已批准
ask   → 工具暂停,发送桌面通知,Claude Code 弹出确认提示
    ↓
用户确认后 Claude 继续,PostToolUse hook 记录结果
    ↓
历史积累 → 下次同类操作判断更准确

决策逻辑

条件 结果
高风险操作(删文件、force push、drop 表、写系统路径) 始终拦截
低风险 + 历史批准率 ≥ 90% 始终直接执行
该类型操作首次出现(无历史) 低风险直接执行,其他拦截一次建立基线
其他情况 历史批准率 < 80% 则拦截

操作类型按路径和命令细分,各自独立积累批准率:

操作类型 说明 风险
file_write:system 写入 /etc//usr/ 等系统路径
file_write:config 写入 .env.yaml.toml 等配置文件
file_write:code 写入普通代码文件
bash_write:git git commit / push / merge
bash_write:package_manager pip / uv / npm 安装
bash_write:shell mv / cp / chmod 等 shell 操作
file_delete rm、drop table 等删除操作
bash_read / file_read 只读操作

安装

全局安装(推荐)——将以下内容添加到 ~/.claude.jsonmcpServers 字段:

{
  "mcpServers": {
    "relay": {
      "type": "stdio",
      "command": "uvx",
      "args": ["cc-relay"]
    }
  }
}

项目级安装——在项目根目录创建 .mcp.json

{
  "mcpServers": {
    "relay": {
      "type": "stdio",
      "command": "uvx",
      "args": ["cc-relay"]
    }
  }
}

重启 Claude Code。Relay 会在首次启动时自动将 hook 注册到 ~/.claude/settings.json,之后所有工具调用都会经过 relay 的决策层。

卸载

uvx cc-relay --uninstall

通知支持

通知文字会根据系统语言自动切换,目前支持中文、英文、日文、韩文。

平台 实现 说明
macOS osascript 系统内置,开箱即用
Linux notify-send 需要桌面环境,Ubuntu/GNOME 默认已有
Windows plyer 开箱即用

MCP 工具(可选)

安装 hook 后 relay 已经自动工作,不需要额外配置。但如果你想查看统计数据,可以在 Claude Code 里调用 relay__get_stats_tool 查看审批统计。

已知限制

Relay hook 在 --dangerously-skip-permissions 模式下不生效(该模式完全跳过 hook 机制)。

本地开发

git clone https://github.com/solost23/cc-relay
cd cc-relay
uv sync
uv run pytest
uv run mcp dev relay/server.py

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