Configuring Claude Code Hooks System

What problem does it solve?

Ensuring consistent code quality, security, and workflow adherence in an AI-driven development environment can be challenging. This Skill enables you to define automated "hooks" that trigger scripts based on Claude Code events, enforcing standards and automating repetitive tasks without interrupting your flow.

Core Features & Use Cases

• Event-Driven Automation: Trigger scripts PreToolUse (e.g., command validation), PostToolUse (e.g., auto-formatting), or SessionStart (e.g., project summary).
• Security Guardrails: Implement hooks to block dangerous commands or enforce permission preservation.
• Context Seeding: Use SessionStart hooks to automatically load project context or display status cards.
• Use Case: To prevent accidental rm -rf / commands, you can configure a PreToolUse hook that validates Bash commands and blocks dangerous patterns, ensuring a safer development environment.

Quick Start

Example: Configure a PreToolUse hook to validate Bash commands

(This is a JSON snippet for settings.json, not a command)

{ "hooks": { "PreToolUse": [ { "matcher": "Bash", "hooks": [ { "type": "command", "command": "bash ~/.claude/hooks/pre-bash-validator.sh" } ] } ] } }

Ensure ~/.claude/hooks/pre-bash-validator.sh is executable.