What is a Hookify rule in Claude Code?

Hookify rules are markdown files stored in your project's .claude directory that define specific patterns to watch for and display messages when those patterns are matched during tool use.

Can Hookify rules block dangerous terminal commands?

Yes, by setting the event to 'bash' and the action to 'block', you can prevent Claude from executing high-risk commands like 'rm -rf' or unauthorized privilege escalations.

Where should I store my Hookify rule files?

Rules should be saved in the .claude/ directory with the naming convention 'hookify.{rule-name}.local.md' to be properly recognized by the system.

How do I apply a Hookify rule to only specific file types?

You can use the advanced conditions format with the 'file_path' field and a 'regex_match' operator to target specific extensions like .tsx or .py.

What regex flavor does the Hookify rule syntax use?

Hookify rules utilize Python-flavored regular expressions for both simple patterns and advanced field matching.

Hookify Rules Writer

Name: Hookify Rules Writer
Author: bagherhosseini

bybagherhosseini

Security & Testing

Guides the creation and configuration of custom Hookify guardrails to enforce coding standards and safety protocols in Claude Code.

About

The Writing Hookify Rules skill enables Claude to generate and manage project-specific guardrails through markdown-based rule files. By leveraging YAML frontmatter and regex patterns, this skill allows developers to intercept bash commands, monitor file edits, and enforce workflow checklists. It is particularly useful for teams looking to automate safety warnings for dangerous operations, prevent the accidental commit of debug logs, and ensure that 'Definition of Done' criteria are met before a task is finalized.

Key Features

0 GitHub stars
Expert regex pattern crafting for bash command and file content matching
Best-practice guidance for organizing and testing .local.md rule files
Advanced multi-condition rule logic using file paths and text operators
Automated generation of Hookify rule syntax and YAML frontmatter templates
Support for custom event triggers including bash, file, stop, and prompt

Use Cases

Enforcing code quality by blocking production-bound console.log or debugger statements
Creating mandatory pre-stop checklists to ensure tests and documentation are updated
Preventing sensitive data leaks by warning when .env or credential files are edited

About

Key Features

0 GitHub stars
Expert regex pattern crafting for bash command and file content matching
Best-practice guidance for organizing and testing .local.md rule files
Advanced multi-condition rule logic using file paths and text operators
Automated generation of Hookify rule syntax and YAML frontmatter templates
Support for custom event triggers including bash, file, stop, and prompt

Use Cases

Enforcing code quality by blocking production-bound console.log or debugger statements
Creating mandatory pre-stop checklists to ensure tests and documentation are updated
Preventing sensitive data leaks by warning when .env or credential files are edited