Scaffold hook packs, validate hooks.json schema, verify hook script permissions, migrate hook configuration, and troubleshoot Codex hook execution errors. Use when creating, auditing, upgrading, or validating Codex hook packs, hooks.json files, hook scripts, SubagentStart/SubagentStop lifecycle hooks, PreToolUse/PostToolUse/PreCompact hooks, Stop claim checks, or repo-local/user-level .codex hook installs.
