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git-guardrails-claude-code

git-guardrails-claude-code

github.com/vinvcnAgent workflows5.4k5.5k installsUpdated 1d ago
Repository

About git-guardrails-claude-code

git-guardrails-claude-code is a skill for installing Git safeguards in Claude Code, using a PreToolUse hook to block specified dangerous commands. It supports project-wide or global setup and configurable block patterns.

Key features

  1. 01Block specified dangerous Git commands
  2. 02Install per project or globally
  3. 03Merge with existing hook settings
  4. 04Customize the command blocklist
  5. 05Test the hook script

Use cases

  1. 01Prevent Claude from force-pushing
  2. 02Block hard resets or file cleanup
  3. 03Configure Git safeguards across projects

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/vinvcn/mattpocock-skills-zh-cn --skill git-guardrails-claude-code

After installing, type/git-guardrails-claude-codein Claude Code to confirm it loaded.

Bundled filesagents/openai.yamlscripts/block-dangerous-git.sh

Details

From the project README

设置 Git Guardrails

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

会被阻止的命令

  • git push（包括 --force 在内的所有 variants）
  • 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 message，说明它无权访问这些 commands。

步骤

1. 询问安装范围

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

2. 复制 hook 脚本

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

根据 scope 复制到目标位置：

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

用 chmod +x 让它可执行。

3. 把 hook 加入 settings

添加到对应 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 已存在，把 hook merge 到现有 hooks.PreToolUse array 中，不要覆盖其他 settings。

4. 询问是否定制

询问用户是否要在 blocked list 中添加或移除 patterns。相应编辑复制后的 script。

5. 验证

运行快速测试：

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

应以 code 2 退出，并向 stderr 打印 BLOCKED message。

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