security-setup

Configure Claude Code security protections across hooks, deny rules, and Bash scoping.

2|Updated Feb 18, 2026

Search Tags:#security #hooks #permissions #claude-code #privacy #deny-rules #bash-scope

Ready to run

npx skills add https://github.com/MusserLab/lab-claude-skills --skill security-setup

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: security-setup
Source: https://github.com/MusserLab/lab-claude-skills/tree/main/skills/security-setup
Command: npx skills add https://github.com/MusserLab/lab-claude-skills --skill security-setup

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Configure and manage Claude Code security protections for sensitive files, credentials, and data, reducing the risk of accidental exposure when using Claude Code. This skill centralizes setup for read/write hooks, deny rules, and Bash scoping to guard against credential leaks.

Core Features & Use Cases

Platform-aware setup that detects macOS, Linux, and Windows environments and tailors protection strategies.
Automated generation and synchronization of PreToolUse hooks for reads, writes, and Bash access to block or restrict sensitive paths.
Guided, interactive workflow that updates settings.json and policy rules, then validates protections with a structured verification process.

Quick Start

Configure protections by running the setup and following the guided prompts to define allowed and blocked directories and generate personal hooks.

Frequently Asked Questions about security-setup

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I prevent Claude Code from reading or writing sensitive files and credentials?▼

You can protect sensitive files by configuring PreToolUse hooks, deny rules, and Bash scoping to block or restrict access to sensitive paths, which this guided setup configures interactively.

Can I restrict Bash command scope in Claude Code to prevent accidental data exposure?▼

Yes, you can restrict Bash command scope by applying Bash scoping rules during the security setup. This limits unauthorized Bash access to sensitive directories and credentials on your system.

Does Claude Code security configuration work across macOS, Linux, and Windows?▼

Yes, the security configuration is platform-aware and detects macOS, Linux, and Windows environments to tailor protection strategies accordingly. It generates hooks and rules specific to your operating system.

What is the best way to set up deny rules for protecting credentials in Claude Code?▼

The best way to set up deny rules is using an interactive setup workflow that updates settings.json and policy rules. It guides you through defining blocked directories and validates protections with a verification process.

How do I generate PreToolUse hooks for Claude Code to block sensitive directory access?▼

You can generate PreToolUse hooks by running the security setup and following the guided prompts to define allowed and blocked directories. It automatically synchronizes hooks for reads, writes, and Bash access.