What is a Hookify rule?

A Hookify rule is a markdown file with YAML frontmatter that defines specific patterns for Claude to monitor, triggering custom messages or blocking actions when matches occur.

What types of events can trigger these rules?

Rules can trigger on bash commands, file edits (Write/Edit tools), when the agent is about to stop, or based on specific user prompt content.

Can I use multiple conditions in a single rule?

Yes, the advanced format allows you to define multiple conditions using fields like file_path, new_text, and command, all of which must match for the rule to trigger.

Where are Hookify rules stored?

Rules are stored in your project's .claude/ directory using the naming convention .claude/hookify.{rule-name}.local.md.

How do I temporarily disable a rule without deleting it?

You can disable a rule by changing the 'enabled' field to 'false' in the rule file's YAML frontmatter.

Writing Hookify Rules

Name: Writing Hookify Rules
Author: Microck

byMicrock

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Security & Testing

Configures automated guardrails and custom alerts for Claude Code by defining patterns for bash commands and file modifications.

This skill provides Claude with the specialized knowledge required to create, configure, and refine Hookify rules—custom markdown-based triggers that monitor CLI interactions and file changes. It enables the implementation of project-specific safety checks, such as blocking dangerous bash commands or alerting developers when sensitive files like .env are modified. By standardizing the YAML frontmatter syntax and regex patterns, it allows for sophisticated workflow enforcement and security guardrails directly within the Claude Code environment to ensure code quality and system safety.

Key Features

01Dynamic rule management via project-specific local markdown files

02Multi-condition logic for complex security and style guardrails

03Customizable warning messages and operation blocking

04Regex-based pattern matching for commands and code changes

0581 GitHub stars

06Automated rule creation for bash, file, and stop events

Use Cases

01Preventing accidental execution of destructive CLI commands like 'rm -rf'

02Enforcing security policies by flagging sensitive data or debug logs in commits

03Implementing project-specific checklists that trigger before Claude finishes a task

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add microck/ordinary-claude-skills rule-identifier

For use in Claude.ai and ChatGPT

Download Skill