ai-bash-guard

AI-powered bash command security guard. Before any Bash command runs, a lightweight Claude subagent evaluates it for destructive or irreversible patterns - recursive deletes, force pushes to protected branches, database drops, and…

Automations
Security
14

What it does and how to use it

A hook that automates security actions at key moments (before/after a tool runs, on save, etc.), without you having to think about it.

Install the hook (command above).
It runs automatically on the defined events.
Adjust the rules in the settings file if you want to fine-tune it.

Install (Claude Code)

mkdir -p .claude/hooks && curl -fsSL https://doutorai.pt/data/lib/hooks__ai-bash-guard.md -o .claude/hooks/ai-bash-guard.json

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

{
  "description": "AI-powered bash command security guard. Before any Bash command runs, a lightweight Claude subagent evaluates it for destructive or irreversible patterns - recursive deletes, force pushes to protected branches, database drops, and credential exposure - and blocks execution with a clear explanation if flagged. Uses PreToolUse with type:agent, which is the only hook pattern that can block tool execution via AI reasoning.",
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "agent",
            "prompt": "You 

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