Writing Hookify Rulesby anthropic

Define patterns and messages that trigger Claude warnings or blocks on specific agent actions. Supports four event types (bash commands, file edits, agent stop, user prompts) plus an "all" catch-all, each with regex or multi-condition matching Rules use markdown files with YAML frontmatter stored in .claude/hookify.{name}.local.md ; changes take effect immediately on next tool use Two matching modes: simple pattern field for single-condition rules, or advanced conditions array for...