According to OpenAI on Twitter, the Codex app allows users to multitask by working with multiple agents in parallel, keeping changes isolated using worktrees. The app also lets users create and use skills by packaging tools and conventions into reusable capabilities. Additionally, Codex supports setting up automations to delegate repetitive tasks, streamlining workflow and increasing productivity. As reported by OpenAI, these features highlight the app's focus on practical applications and business efficiency in AI-driven environments.