Hookify Rule Writing Guide

About

This skill provides comprehensive guidance for authoring Hookify rules, which are specialized markdown files that intercept Claude Code's actions to provide warnings, block dangerous commands, or enforce best practices. It helps developers set up automated triggers based on regex patterns in bash commands, file edits, and user prompts, enabling a more secure and disciplined development environment by defining custom project-level guardrails and automated completion checklists.

Key Features

• Step-by-step guidance for YAML frontmatter syntax and rule structure
• Event-specific configuration for bash commands, file operations, and completion steps
• Integration support for local .claude/ directory organization and gitignore workflows
• Advanced pattern matching using multi-condition regex and field-specific filters
• 1 GitHub stars
• Best practices for writing effective warning messages and alternative suggestions

Use Cases

• Automatically warning against committing sensitive information like API keys or debug logs
• Enforcing a pre-flight checklist before the AI agent finishes a task
• Preventing accidental execution of destructive shell commands like 'rm -rf'