What are Claude Code hooks?

Hooks are specialized scripts that trigger during specific lifecycle events in Claude Code, such as when a session starts or before a tool executes.

Why use this skill instead of manual registration?

This skill ensures that scripts follow mandatory safety patterns, prevents JSON syntax errors in your settings, and automatically handles file permissions.

Why is a restart required after registration?

Claude Code loads its hook registry and configuration files into memory at startup, so changes to settings.json only take effect after a fresh session starts.

Can I filter hooks by specific commands?

Claude's built-in matcher syntax filters by tool name only; specific command or path filtering must be handled within the bash script by parsing the JSON input.

Hook Registration Manager

Name: Hook Registration Manager
Author: cowwoc

bycowwoc

•

Productivity & Workflow

Automates the creation and registration of Claude Code hook scripts with standardized error handling and configuration.

The Register Hook skill streamlines the process of extending Claude Code's capabilities by automating the lifecycle of custom hook scripts. It ensures all hooks follow robust bash patterns, such as pipefail and error traps, while correctly updating the settings.json configuration with precise matcher syntax. By validating trigger events and script permissions, this skill prevents common configuration errors, making it essential for developers who want to implement custom validation, logging, or context injection into their AI-driven workflows.

Key Features

0156 GitHub stars

02Automated registration in settings.json for all Claude Code trigger events

03Built-in patterns for blocking dangerous commands and context injection

04Validation of script permissions and configuration file integrity

05Support for advanced matcher syntax and tool-level filtering

06Standardized Bash template generation with mandatory error handling (set -euo pipefail)

Use Cases

01Creating an automated audit log of all tool executions for debugging and compliance

02Injecting real-time workspace context or planning states at the start of every session

03Preventing dangerous Git commands like filter-branch using a blocking validation hook

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add cowwoc/cat register-hook

For use in Claude.ai and ChatGPT

Download Skill