Agent Skills › mattpocock/skills › git-guardrails-claude-code

git-guardrails-claude-code

GitHub

为Claude Code配置PreToolUse钩子，拦截并阻止危险的Git命令（如push、reset --hard等），防止误操作导致代码丢失或分支破坏。

skills/misc/git-guardrails-claude-code/SKILL.md mattpocock/skills

Trigger Scenarios

用户希望防止破坏性的Git操作需要添加Git安全钩子要求在Claude Code中阻止git push或reset

Install

npx skills add mattpocock/skills --skill git-guardrails-claude-code -g -y

More Options

Non-standard path

npx skills add https://github.com/mattpocock/skills/tree/main/skills/misc/git-guardrails-claude-code -g -y

Use without installing

npx skills use mattpocock/skills@git-guardrails-claude-code

指定 Agent (Claude Code)

npx skills add mattpocock/skills --skill git-guardrails-claude-code -a claude-code -g -y

安装 repo 全部 skill

npx skills add mattpocock/skills --all -g -y

预览 repo 内 skill

npx skills add mattpocock/skills --list

SKILL.md

Frontmatter

{
    "name": "git-guardrails-claude-code",
    "description": "Set up Claude Code hooks to block dangerous git commands (push, reset --hard, clean, branch -D, etc.) before they execute. Use when user wants to prevent destructive git operations, add git safety hooks, or block git push\/reset in Claude Code."
}

Setup Git Guardrails

Sets up a PreToolUse hook that intercepts and blocks dangerous git commands before Claude executes them.

What Gets Blocked

git push (all variants including --force)
git reset --hard
git clean -f / git clean -fd
git branch -D
git checkout . / git restore .

When blocked, Claude sees a message telling it that it does not have authority to access these commands.

Steps

1. Ask scope

Ask the user: install for this project only (.claude/settings.json) or all projects (~/.claude/settings.json)?

2. Copy the hook script

The bundled script is at: scripts/block-dangerous-git.sh

Copy it to the target location based on scope:

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

Make it executable with chmod +x.

3. Add hook to settings

Add to the appropriate 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"
          }
        ]
      }
    ]
  }
}

If the settings file already exists, merge the hook into the existing hooks.PreToolUse array. Don't overwrite other settings.

4. Ask about customization

Ask if user wants to add or remove any patterns from the blocked list. Edit the copied script accordingly.

5. Verify

Run a quick test:

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

Should exit with code 2 and print a BLOCKED message to stderr.

Version History

1bb9595 Current 2026-08-19 19:44
ed37663 2026-07-24 15:57

Metadata

Files: 0
Version: 3cca18b
Hash: 69b291d6
Indexed: 2026-07-24 15:57

git-guardrails-claude-code

git-guardrails-claude-code

Trigger Scenarios

Install

SKILL.md

Setup Git Guardrails

What Gets Blocked

Steps

1. Ask scope

2. Copy the hook script

3. Add hook to settings

4. Ask about customization

5. Verify

Version History

Same Skill Collection

Metadata

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