How do I ensure my hooks work across different user machines?

You should always use the ${CLAUDE_PLUGIN_ROOT} environment variable to reference files within your plugin directory to ensure portability regardless of the installation path.

Can hooks modify the behavior of Claude's tools?

Yes, specifically PreToolUse hooks can use the exit_modify method to change tool inputs before they are executed, allowing for automated parameter adjustment.

What is a Claude Code hook?

A hook is a specialized script or prompt that intercepts specific events in the Claude Code lifecycle, allowing you to validate, modify, or block operations before or after they occur.

When should I use a Command hook versus a Prompt hook?

Command hooks are best for deterministic, fast, and script-based checks like regex validation. Prompt hooks are ideal for context-aware decisions that require LLM reasoning.

Claude Code Hook Architect

Name: Claude Code Hook Architect
Author: RBozydar

byRBozydar

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Developer Tools

Streamlines the creation of Claude Code hooks for intercepting, validating, and modifying lifecycle events within the development environment.

The Claude Code Hook Architect skill provides a comprehensive framework for developers to extend Claude Code's capabilities through custom plugins. It offers deep technical guidance on implementing Command, Prompt, and Agent-based hooks, allowing for the interception of lifecycle events like PreToolUse and SessionStart. By providing standardized templates and security-first implementation patterns, this skill ensures that developers can build robust safety guards, automated formatters, and custom validation logic that is both performant and portable across different project environments.

Key Features

01Python implementation patterns utilizing the cchooks library

02Predefined templates for PreToolUse, PostToolUse, and SessionStart events

03Comprehensive guide for Command, Prompt, and Agent-based hook types

04Standardized JSON configuration structures for hooks.json management

05Security-focused patterns for regex-based command blocking and validation

060 GitHub stars

Use Cases

01Building safety guards to prevent destructive bash commands like accidental file deletions

02Protecting sensitive environment variables and configuration files from unauthorized access

03Automating code style enforcement and linting immediately after tool-based file edits

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add rbozydar/rbw-claude-code create-hook

For use in Claude.ai and ChatGPT

Download Skill