What is a Hookify rule in Claude Code?

A Hookify rule is a specialized Markdown file with YAML frontmatter that instructs Claude to monitor specific events and provide feedback or warnings when matching patterns are detected.

Which events can I trigger with Hookify?

Hookify supports triggers for bash commands, file operations (Edit/Write), stop events (when the agent finishes), and user prompt submissions.

How do I temporarily disable a Hookify rule?

You can temporarily deactivate a rule without deleting the file by setting the 'enabled' field to 'false' in the rule's YAML frontmatter.

Can Hookify rules check specific file paths?

Yes, using the advanced format with conditions, you can target specific fields like 'file_path' or 'new_text' to limit rules to certain files or directories.

Where should Hookify rule files be stored?

Rules should be stored in the .claude/ directory of your project root, following the naming convention .claude/hookify.{rule-name}.local.md.

Hookify Rule Authoring

Name: Hookify Rule Authoring
Author: BartekFo

byBartekFo

0•

개발자 도구

Enables the creation and configuration of Hookify rules to enforce coding standards and prevent dangerous operations within Claude Code.

This skill provides specialized guidance for writing, testing, and implementing Hookify rules, which are custom guardrails used by Claude Code to monitor actions. By defining specific regex patterns and YAML frontmatter, users can configure Claude to trigger warnings or block operations during bash commands, file edits, or session completions. This is essential for maintaining project security, preventing accidental deletions, and ensuring that specific development workflows—like removing debug logs or checking for environment variables—are strictly followed through real-time agent intervention.

주요 기능

01Support for multi-event triggers including bash, file, stop, and prompt hooks

02Template generation for security guardrails and code quality warnings

03Comprehensive syntax guidance for Hookify YAML frontmatter and Markdown structure

040 GitHub stars

05Guidance on regex pattern optimization for Python-style matching

06Advanced condition mapping using regex_match, contains, and starts_with operators

사용 사례

01Creating mandatory pre-completion checklists to ensure tests and documentation are updated

02Flagging sensitive data leaks such as API keys or console logs in source files

03Preventing the execution of dangerous terminal commands like 'rm -rf' or 'chmod 777'

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bartekfo/my-dev-setup writing-rules

For use in Claude.ai and ChatGPT

Download Skill