Writing Hookify Rules

Writing Hookify Rules: Hookify rules are markdown files with YAML frontmatter that define patterns to watch for and messages to show when those patterns match. Rules are stored in `.claude/hookify.{rule-name}.local.md` files.

This skill provides comprehensive instructions and syntax for creating and managing 'Hookify Rules.' These rules are markdown files stored locally in `.claude/hookify.{rule-name}.local.md` that define Python regex patterns to match against various agent events (bash commands, file operations, agent stop intentions, user prompts). When a pattern matches, a specified message is displayed to the agent, and an action (warn or block) can be triggered. The skill also suggests using `python3` for testing regex patterns and references online regex testers.