Git guardrails claude code

Skill popsiclelmlm/skills-cn/skills/misc/git-guardrails-claude-code

Chinese maintenance notes and installer for practical engineering agent skills.

Install

npx -y skills add popsiclelmlm/skills-cn --skill git-guardrails-claude-code

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设置 Claude Code hooks，在危险 git commands（push、reset --hard、clean、branch -D 等）执行前阻止它们。当用户想防止破坏性 git 操作、添加 git safety hooks，或在 Claude Code 中阻止 git push/reset 时使用。

SKILL.md

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Setup Git Guardrails

设置一个 PreToolUse hook，在 Claude 执行危险 git commands 前拦截并阻止它们。

What Gets Blocked

git push（包括 --force 在内的所有变体）
git reset --hard
git clean -f / git clean -fd
git branch -D
git checkout . / git restore .

被阻止时，Claude 会看到一条消息，说明它没有权限访问这些 commands。

Steps

1. Ask scope

询问用户：只为当前项目（.claude/settings.json）安装，还是为所有项目（~/.claude/settings.json）安装？

2. Copy the hook script

Bundled script 位于：scripts/block-dangerous-git.sh

根据 scope 把它复制到目标位置：

Project：.claude/hooks/block-dangerous-git.sh
Global：~/.claude/hooks/block-dangerous-git.sh

使用 chmod +x 让它可执行。

3. Add hook to settings

添加到相应 settings file：

Project（.claude/settings.json）：

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "\"$CLAUDE_PROJECT_DIR\"/.claude/hooks/block-dangerous-git.sh"
          }
        ]
      }
    ]
  }
}

Global（~/.claude/settings.json）：

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "~/.claude/hooks/block-dangerous-git.sh"
          }
        ]
      }
    ]
  }
}

如果 settings file 已经存在，把 hook 合并到现有 hooks.PreToolUse array 中，不要覆盖其他 settings。

4. Ask about customization

询问用户是否想从 blocked list 中添加或移除任何 patterns。相应编辑复制后的 script。

5. Verify

运行一个快速测试：

echo '{"tool_input":{"command":"git push origin main"}}' | <path-to-script>

应以 code 2 退出，并向 stderr 打印 BLOCKED message。