Do hooks run sequentially or in parallel?

All matching hooks for a specific event run in parallel to maximize performance; therefore, hooks should be designed to be independent and not rely on the output of other hooks.

What are the two main types of hooks in Claude Code?

Claude Code supports Prompt-Based hooks, which use LLM reasoning for context-aware decisions, and Command hooks, which execute bash scripts for fast, deterministic checks.

What is the difference between plugin hooks and settings hooks?

Plugin hooks are defined in a hooks.json file within a plugin folder using a wrapper format, while user-specific hooks are defined directly at the top level of the .claude/settings.json file.

How can I prevent Claude from executing dangerous commands?

You can use a PreToolUse hook with a matcher for the 'Bash' tool to inspect inputs and return a 'deny' decision if the command violates your security policies.

Hook Development for Claude Code

Name: Hook Development for Claude Code
Author: arthur0824hao

byarthur0824hao

Herramientas para Desarrolladores

Facilitates the creation and implementation of event-driven hooks to automate workflows, validate tool calls, and enforce security policies within Claude Code plugins.

Acerca de

This skill provides expert guidance for developing Claude Code hooks, which are essential for building robust, secure, and automated AI coding environments. It covers both sophisticated prompt-based hooks for context-aware reasoning and high-performance command hooks for deterministic checks. Developers can leverage this skill to intercept tool calls via PreToolUse, validate task completion with Stop hooks, and manage project-wide context using SessionStart, ensuring that Claude operates safely and efficiently according to specific project standards and safety protocols.

Características Principales

Advanced security best practices for input validation, path safety, and command blocking
Comprehensive implementation patterns for Prompt-Based and Command-Based hooks
Standardized configuration templates for plugin-specific hooks and global user settings
Detailed guidance for the full event lifecycle including PreToolUse, PostToolUse, and Stop
0 GitHub stars
Performance optimization strategies including parallel execution and timeout management

Casos de Uso

Enforcing security policies by intercepting and blocking dangerous shell commands or access to sensitive files
Automating task verification to ensure code builds and tests pass successfully before the AI agent completes its session
Initializing project context and persistent environment variables automatically at the start of every development session

Acerca de

Características Principales

Advanced security best practices for input validation, path safety, and command blocking
Comprehensive implementation patterns for Prompt-Based and Command-Based hooks
Standardized configuration templates for plugin-specific hooks and global user settings
Detailed guidance for the full event lifecycle including PreToolUse, PostToolUse, and Stop
0 GitHub stars
Performance optimization strategies including parallel execution and timeout management

Casos de Uso

Enforcing security policies by intercepting and blocking dangerous shell commands or access to sensitive files
Automating task verification to ensure code builds and tests pass successfully before the AI agent completes its session
Initializing project context and persistent environment variables automatically at the start of every development session