hook-development

Use when creating, modifying, or debugging Claude Code hooks — PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification. Covers the plugin hooks/hooks.json wrapper format vs. the user settings.json direct format, matchers, security patterns, $CLAUDE_PLUGIN_ROOT portability, lifecycle limitations, and debugging. Trigger on "add a hook", "validate tool use",…