I've been using Claude Code as my primary agent orchestration tool for a few weeks now. Running cron-style loops for browser automation through a remote Playwright instance. Haven't tried Codex at this depth yet, but from what I've seen it's more focused on code generation while Claude Code is more of a general-purpose agent runtime. The things that make Claude Code powerful for me are the persistent session with tool access, the ability to run background tasks on schedules, and the hook/skill system for customization. If Codex matches that plus adds better async execution (Claude Code's scheduled tasks die when the session ends), it could be compelling. But for now Claude Code handles my use case better than anything else I've tried.