OpenAI Codex turns agentic everything app

OpenAI is effectively turning the IDE into a background operating system for developers. By enabling parallel agentic "computer use" that doesn't hijack the user's mouse, Codex moves past the biggest limitation of current AI agents.

• –Background agents can execute UI tests, frontend iterations, and API-less workflows while the user continues active coding
• –Integrated GPT-image-1.5 allows for seamless UI/UX prototyping and asset generation directly within the engineering flow
• –Atlas browser integration provides a persistent Chromium surface for agents to navigate user journeys and inspect live outputs
• –MCP server support bridges the gap between local codebases and enterprise tools like Jira, GitLab, and Slack
• –Moving computer use to a background process sets a new UX standard, outclassing Anthropic's current "active screen" implementation