Download the app from OpenAI's official website, install it, then sign in to sync your setup and begin managing your development projects seamlessly.

Yes, the app allows you to run multiple agents in parallel, organized by project and thread for efficient multitasking. Just set up new agents within the interface.

Codex uses built-in worktrees and cloud environments to keep agents' changes isolated, allowing simultaneous work without conflicts or overwrites.

Use the diff inspector in each thread to review changes, leave comments, and open adjustments directly in your editor for a smooth review process.

Yes, you can use skills—reusable workflows that bundle tools, scripts, and team conventions—found in the app under Settings > Skills.

Create scheduled or repeatable workflows in the app's automation section to delegate recurring tasks efficiently and save time.

Yes, Codex automatically imports your history and configurations from the CLI and IDE extension, ensuring continuity after updates.

Yes, on Windows, Codex runs in a secure sandbox with bounded permissions and only escalates privileges when you approve, enhancing safety.

Visit Settings > Account > Subscription within the app to view current plans, upgrade options, or manage your billing preferences.

Try restarting the app, check for updates, and contact support via Help > Feedback within the app if issues persist.