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Agent skill

Git Guardrails Claude Code

by devcxl in devcxl/mattpocock-skills-zh

设置 Claude Code 钩子，在危险 Git 命令（push、reset --hard、clean、branch -D 等）执行前将其拦截。当用户想要防止破坏性 Git 操作、添加 Git 安全钩子或在 Claude Code 中阻止 git push/reset 时使用。

MITAuto-check passedAI & LLM Engineering

Install Git Guardrails Claude Code

skills CLI
$ npx skills add devcxl/mattpocock-skills-zh --skill git-guardrails-claude-code -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install devcxl/mattpocock-skills-zh git-guardrails-claude-code --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/devcxl/mattpocock-skills-zh.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/misc/git-guardrails-claude-code .claude/skills/git-guardrails-claude-code && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
git-guardrails-claude-code
GitHub stars
433
Token cost
~420 tokens
SKILL.md length
67 words
Files
3 (incl. scripts)
Skills in repo
20
Repo updated
First seen
Licence
MIT

At a glance

设置 Claude Code 钩子，在危险 Git 命令（push、reset --hard、clean、branch -D 等）执行前将其拦截。当用户想要防止破坏性 Git 操作、添加 Git 安全钩子或在 Claude Code 中阻止 git push/reset 时使用。

  • Works in 5 steps: 询问安装范围 → 复制钩子脚本 → 将钩子添加到设置文件 → …
  • Tasks that involve Git workflow
  • SKILL.md covers 会被阻止的命令 and 步骤
  • Runs Shell scripts from its folder; calls git

What it does

Git Guardrails Claude Code is an agent skill from devcxl/mattpocock-skills-zh. 设置 Claude Code 钩子，在危险 Git 命令（push、reset --hard、clean、branch -D 等）执行前将其拦截。当用户想要防止破坏性 Git 操作、添加 Git 安全钩子或在 Claude Code 中阻止 git push/reset 时使用。

Its SKILL.md is about 420 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts (for example `agents/openai.yaml` and `scripts/block-dangerous-git.sh`).

It sits in AI & LLM Engineering, covering Git workflow and LLM guardrails. It works with Git. The repository describes itself as: Matt Pocock 技能集的中文翻译版 — 地道中文，原汁原味的技术术语。基于 mattpocock/skills 复刻。每日中午12点钟同步. The licence is MIT.

When your agent uses it

  • Tasks that involve Git workflow
  • Tasks that involve LLM guardrails

Example prompts

  • “/git-guardrails-claude-code”

Requirements

  • A Bash shell

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. 询问安装范围
  2. 复制钩子脚本
  3. 将钩子添加到设置文件
  4. 询问自定义
  5. 验证

What it can do on your machine

Read from SKILL.md and the folder at commit b72cc5b. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (Shell), which the agent can run.

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Git Guardrails Claude Code loads about 420 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 67 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~42
When it runs · the whole SKILL.md, loaded when a task matches
~420

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from devcxl/mattpocock-skills-zh at commit b72cc5b, republished under its MIT licence (© devcxl). 67 words, ~420 tokens.

Download SKILL.mdSave it as .claude/skills/git-guardrails-claude-code/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
git-guardrails-claude-code
description
设置 Claude Code 钩子，在危险 Git 命令（push、reset --hard、clean、branch -D 等）执行前将其拦截。当用户想要防止破坏性 Git 操作、添加 Git 安全钩子或在 Claude Code 中阻止 git push/reset 时使用。

设置 Git 护栏

设置一个 PreToolUse 钩子，在 Claude 执行危险 Git 命令之前拦截并阻止它们。

会被阻止的命令

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

当命令被阻止时，Claude 会看到一条消息，告知它没有权限访问这些命令。

步骤

1. 询问安装范围

询问用户：是仅针对当前项目安装（.claude/settings.json），还是所有项目安装（~/.claude/settings.json）？

2. 复制钩子脚本

打包的脚本位于：scripts/block-dangerous-git.sh

根据安装范围将其复制到目标位置：

  • 项目级：.claude/hooks/block-dangerous-git.sh
  • 全局：~/.claude/hooks/block-dangerous-git.sh

使用 chmod +x 使其可执行。

3. 将钩子添加到设置文件

添加到相应的设置文件中：

项目级（.claude/settings.json）：

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

全局（~/.claude/settings.json）：

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

如果设置文件已存在，将钩子合并到现有的 hooks.PreToolUse 数组中：不要覆盖其他设置。

4. 询问自定义

询问用户是否需要从阻止列表中添加或移除任何模式。根据需求编辑已复制的脚本。

5. 验证

运行一个快速测试：

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

应退出并返回代码 2，并向 stderr 打印一条 BLOCKED 消息。

© devcxl, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (scripts) in skills/misc/git-guardrails-claude-code of devcxl/mattpocock-skills-zh.

  • SKILL.md
  • agents/openai.yaml
  • scripts/block-dangerous-git.sh

Open the folder on GitHubat commit b72cc5b

Compare with similar skills

Git Guardrails Claude Code next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Git Guardrails Claude Code compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Git Guardrails Claude Code this skilldevcxl/mattpocock-skills-zh433—~420Automated safety check: PassMIT
Git Guardrails Claude Codefossasia/eventyay-interpretation1.6k12 repos~578Automated safety check: PassApache-2.0
Git Guardrails Claude Codevinvcn/mattpocock-skills-zh-CN4.6k—~474Automated safety check: PassMIT
GuardHouseofmvps/ultraship123—~790Automated safety check: NotesMIT
Swe CLI SkillsSylphAI-Inc/skills111—~1.7kAutomated safety check: PassMIT
Code Engineeringkangarooking/system-prompt-skills205—~769Automated safety check: PassMIT

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Works with

Categories

Questions about Git Guardrails Claude Code

What does Git Guardrails Claude Code do?

设置 Claude Code 钩子，在危险 Git 命令（push、reset --hard、clean、branch -D 等）执行前将其拦截。当用户想要防止破坏性 Git 操作、添加 Git 安全钩子或在 Claude Code 中阻止 git push/reset 时使用。. Git Guardrails Claude Code is an agent skill from devcxl/mattpocock-skills-zh.

When should I use Git Guardrails Claude Code?

Git Guardrails Claude Code fits situations like: tasks that involve Git workflow; tasks that involve LLM guardrails.

How do I install Git Guardrails Claude Code in Claude Code?

Run `npx skills add devcxl/mattpocock-skills-zh --skill git-guardrails-claude-code -a claude-code`. Or copy the skill folder (skills/misc/git-guardrails-claude-code in devcxl/mattpocock-skills-zh) into .claude/skills/git-guardrails-claude-code in your project. Claude Code loads it when a task matches its description.

How do I install Git Guardrails Claude Code in Codex?

Run `npx skills add devcxl/mattpocock-skills-zh --skill git-guardrails-claude-code -a codex`. Or copy the skill folder (skills/misc/git-guardrails-claude-code in devcxl/mattpocock-skills-zh) into .agents/skills/git-guardrails-claude-code in your project. Codex loads it when a task matches its description.

Can I use Git Guardrails Claude Code in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add devcxl/mattpocock-skills-zh --skill git-guardrails-claude-code -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/git-guardrails-claude-code, .gemini/skills/git-guardrails-claude-code, .github/skills/git-guardrails-claude-code and .opencode/skills/git-guardrails-claude-code in your project.

What does Git Guardrails Claude Code need to run?

Going by SKILL.md and its folder, Git Guardrails Claude Code needs a shell for the scripts in its folder and the command-line tools its instructions call (git). Our summary lists: A Bash shell.

Does Git Guardrails Claude Code access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Git Guardrails Claude Code safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Git Guardrails Claude Code use?

Git Guardrails Claude Code is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Git Guardrails Claude Code use?

About 420 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Git Guardrails Claude Code?

Skills that share tags, products or a category with Git Guardrails Claude Code: Git Guardrails Claude Code (fossasia/eventyay-interpretation, 1.6k stars), Git Guardrails Claude Code (vinvcn/mattpocock-skills-zh-CN, 4.6k stars), Guard (Houseofmvps/ultraship, 123 stars) and Swe CLI Skills (SylphAI-Inc/skills, 111 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Git Guardrails Claude Code?

devcxl (a GitHub user) maintains it in devcxl/mattpocock-skills-zh, which has 433 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 5, 2026.

Source: devcxl/mattpocock-skills-zh on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.