hookify-rules

You define custom rules for Claude by creating markdown files with YAML frontmatter that specify a name, enabled status, event, and pattern, which triggers contextual messages when pattern matches occur.

YAML frontmatter patterns work by specifying matching criteria in the frontmatter block of a markdown rule file, watching for those patterns during conversation and triggering attached guidance messages when matches are found.

The best way to warn users about sensitive commands is to define a hook-based rule with a pattern matching those commands, attaching an actionable message that guides the user toward safer alternatives before execution.

Yes, you can block risky file edits by creating a local markdown rule file with YAML frontmatter that specifies the edit event and the risky pattern, attaching a message that prevents the unsafe action.

Rule files must be stored in the .claude directory using the naming convention hookify.{rule-name}.local.md, ensuring Claude can locate and load the YAML frontmatter configurations during interactions.

No external dependencies are required to create and enforce hook-based rules, as the system relies entirely on local markdown files with YAML frontmatter to define patterns and trigger contextual messages.